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Low-dose edoxaban curbs stroke risk in elderly with AF, despite frailty
Elderly patients with atrial fibrillation (AF) who are at high risk of bleeding may benefit from a low 15-mg dose of edoxaban, regardless of their frailty status, a subanalysis of the ELDERCARE-AF trial suggests.
Major bleeding and major or clinically relevant nonmajor bleeding events were both numerically higher in the edoxaban group than placebo, the authors reported, with no heterogeneity by frailty status.
The subanalysis extends findings of the overall study by teasing out stroke, systemic embolism (SSE) and bleeding events across frailty status among Japanese patients aged 80 and older who were ineligible for oral anticoagulants (OACs) at usual doses.
Findings from the original phase 3 ELDERCARE-AF study were previously reported during the virtual European Society of Cardiology Congress 2020 and simultaneously published in The New England Journal of Medicine. The current study was published online in JAMA Network Open.
All frailty levels benefited
Shintaro Akashi, MD, PhD, of National Hospital Organization Hamada Medical Center, Shimane, Japan, and colleagues analyzed data from 944 patients randomly assigned to edoxaban 15 mg or placebo for about 3 years. The mean age of participants was 86.6 years and 57% were women. Baseline characteristics, including history of bleeding, were similar between groups.
Patient physical condition was assessed via five parameters: weight loss, grip strength, walking speed, exhaustion, and activity level. This yielded a frailty score, with one point given for each parameter: 0 indicated robust; 1 or 2, prefrail; and 3 or higher, frail. For this analysis, robust (6.5% of patients) and prefrail (51%) were combined and categorized as nonfrail.
In the placebo group, estimated event rates for stroke or SSE were 7.1% per patient-year among frail patients and 6.1% per patient-year among those who were nonfrail.
In the edoxaban group, SSE occurred at an estimated event rate of 2.5% of frail patients and 1.5% of nonfrail patients (adjusted HR, 1.41).
The edoxaban group “consistently had fewer SSE events regardless of frailty status including each frailty assessment parameter, and there was no heterogeneity between the groups,” the authors wrote, with similar trends for the association of edoxaban 15 mg for each frailty assessment parameter.
However, major bleeding and major or clinically relevant nonmajor (CRNM) bleeding events were both higher with edoxaban, regardless of frailty status.
More specifically, in the placebo group, the incidence of major bleeding was 2.3% in the frail group and 1.5% in the nonfrail group (adjusted HR, 1.48) versus 3.7% and 2.9%, respectively, in the edoxaban group (adjusted HR, 1.04).
In addition, exhaustion was related to a significantly increased risk of major or CRNM bleeding in frail versus nonfrail patients (16.3% vs. 8.4%; adjusted HR, 1.97). The incidences were all higher in the edoxaban group, irrespective of frailty status.
Furthermore, although both all-cause death and the net clinical composite outcome of stroke or SSE occurred more frequently in frail than in nonfrail patients, there was no association with frailty status between the edoxaban and placebo groups.
Findings unrelated to edoxaban were also noteworthy. “Surprisingly, grip strength showed an association with adverse events,” the authors wrote. Among those with lower grip strength, “there was nearly a 3-fold increase in risk of SSE and major bleeding and a more than 16-fold significant increase in risk of death. In addition, in those with exhaustion, there was nearly a 2-fold significant increase in major or CRNM bleeding.”
Thus, they suggested, in this patient population, “an objective physical assessment of grip strength or exhaustion in addition to the well-known walking speed may more accurately estimate the risks of clinical outcomes than the overall frailty assessment.”
Head-to-head comparisons needed
Commenting on the findings, Richard Kovach, MD, chair of the interventional cardiology division at Deborah Heart and Lung Center, Browns Mills, N.J., said, “It is interesting that the lower dose of edoxaban still appears to have a statistically significant reduction in the incidence of stroke in this subgroup of extremely frail elderly patients, and it may be useful in this highly selected subset.
“That being said,” he added, “the major complication of oral anticoagulants – major bleeding – appears to be similar to other NOACs prescribed more frequently in the U.S., specifically rivaroxaban and apixaban.”
“Furthermore, in the U.S., frail or complex patients who are not candidates for oral anticoagulant therapy are much more likely to receive a left atrial appendage closure device such as a Watchman or Amulet in order to avoid the risk of bleeding complications completely,” he said. “Procedural success with these devices is extremely high and procedural complications are extremely low. With both devices, the long-term reduction in stroke risk is equivalent to the use of anticoagulant therapy.
“Clearly, more research is needed to compare the outcomes with edoxaban against other NOACs,” Dr. Kovach concluded. “A head-to-head comparison of low-dose edoxaban versus left atrial appendage closure in this high-risk group would also be of great clinical value.”
The study was funded by Daiichi Sankyo. Two coauthors are employees of and five have received fees from the company. Dr. Kovach has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Elderly patients with atrial fibrillation (AF) who are at high risk of bleeding may benefit from a low 15-mg dose of edoxaban, regardless of their frailty status, a subanalysis of the ELDERCARE-AF trial suggests.
Major bleeding and major or clinically relevant nonmajor bleeding events were both numerically higher in the edoxaban group than placebo, the authors reported, with no heterogeneity by frailty status.
The subanalysis extends findings of the overall study by teasing out stroke, systemic embolism (SSE) and bleeding events across frailty status among Japanese patients aged 80 and older who were ineligible for oral anticoagulants (OACs) at usual doses.
Findings from the original phase 3 ELDERCARE-AF study were previously reported during the virtual European Society of Cardiology Congress 2020 and simultaneously published in The New England Journal of Medicine. The current study was published online in JAMA Network Open.
All frailty levels benefited
Shintaro Akashi, MD, PhD, of National Hospital Organization Hamada Medical Center, Shimane, Japan, and colleagues analyzed data from 944 patients randomly assigned to edoxaban 15 mg or placebo for about 3 years. The mean age of participants was 86.6 years and 57% were women. Baseline characteristics, including history of bleeding, were similar between groups.
Patient physical condition was assessed via five parameters: weight loss, grip strength, walking speed, exhaustion, and activity level. This yielded a frailty score, with one point given for each parameter: 0 indicated robust; 1 or 2, prefrail; and 3 or higher, frail. For this analysis, robust (6.5% of patients) and prefrail (51%) were combined and categorized as nonfrail.
In the placebo group, estimated event rates for stroke or SSE were 7.1% per patient-year among frail patients and 6.1% per patient-year among those who were nonfrail.
In the edoxaban group, SSE occurred at an estimated event rate of 2.5% of frail patients and 1.5% of nonfrail patients (adjusted HR, 1.41).
The edoxaban group “consistently had fewer SSE events regardless of frailty status including each frailty assessment parameter, and there was no heterogeneity between the groups,” the authors wrote, with similar trends for the association of edoxaban 15 mg for each frailty assessment parameter.
However, major bleeding and major or clinically relevant nonmajor (CRNM) bleeding events were both higher with edoxaban, regardless of frailty status.
More specifically, in the placebo group, the incidence of major bleeding was 2.3% in the frail group and 1.5% in the nonfrail group (adjusted HR, 1.48) versus 3.7% and 2.9%, respectively, in the edoxaban group (adjusted HR, 1.04).
In addition, exhaustion was related to a significantly increased risk of major or CRNM bleeding in frail versus nonfrail patients (16.3% vs. 8.4%; adjusted HR, 1.97). The incidences were all higher in the edoxaban group, irrespective of frailty status.
Furthermore, although both all-cause death and the net clinical composite outcome of stroke or SSE occurred more frequently in frail than in nonfrail patients, there was no association with frailty status between the edoxaban and placebo groups.
Findings unrelated to edoxaban were also noteworthy. “Surprisingly, grip strength showed an association with adverse events,” the authors wrote. Among those with lower grip strength, “there was nearly a 3-fold increase in risk of SSE and major bleeding and a more than 16-fold significant increase in risk of death. In addition, in those with exhaustion, there was nearly a 2-fold significant increase in major or CRNM bleeding.”
Thus, they suggested, in this patient population, “an objective physical assessment of grip strength or exhaustion in addition to the well-known walking speed may more accurately estimate the risks of clinical outcomes than the overall frailty assessment.”
Head-to-head comparisons needed
Commenting on the findings, Richard Kovach, MD, chair of the interventional cardiology division at Deborah Heart and Lung Center, Browns Mills, N.J., said, “It is interesting that the lower dose of edoxaban still appears to have a statistically significant reduction in the incidence of stroke in this subgroup of extremely frail elderly patients, and it may be useful in this highly selected subset.
“That being said,” he added, “the major complication of oral anticoagulants – major bleeding – appears to be similar to other NOACs prescribed more frequently in the U.S., specifically rivaroxaban and apixaban.”
“Furthermore, in the U.S., frail or complex patients who are not candidates for oral anticoagulant therapy are much more likely to receive a left atrial appendage closure device such as a Watchman or Amulet in order to avoid the risk of bleeding complications completely,” he said. “Procedural success with these devices is extremely high and procedural complications are extremely low. With both devices, the long-term reduction in stroke risk is equivalent to the use of anticoagulant therapy.
“Clearly, more research is needed to compare the outcomes with edoxaban against other NOACs,” Dr. Kovach concluded. “A head-to-head comparison of low-dose edoxaban versus left atrial appendage closure in this high-risk group would also be of great clinical value.”
The study was funded by Daiichi Sankyo. Two coauthors are employees of and five have received fees from the company. Dr. Kovach has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Elderly patients with atrial fibrillation (AF) who are at high risk of bleeding may benefit from a low 15-mg dose of edoxaban, regardless of their frailty status, a subanalysis of the ELDERCARE-AF trial suggests.
Major bleeding and major or clinically relevant nonmajor bleeding events were both numerically higher in the edoxaban group than placebo, the authors reported, with no heterogeneity by frailty status.
The subanalysis extends findings of the overall study by teasing out stroke, systemic embolism (SSE) and bleeding events across frailty status among Japanese patients aged 80 and older who were ineligible for oral anticoagulants (OACs) at usual doses.
Findings from the original phase 3 ELDERCARE-AF study were previously reported during the virtual European Society of Cardiology Congress 2020 and simultaneously published in The New England Journal of Medicine. The current study was published online in JAMA Network Open.
All frailty levels benefited
Shintaro Akashi, MD, PhD, of National Hospital Organization Hamada Medical Center, Shimane, Japan, and colleagues analyzed data from 944 patients randomly assigned to edoxaban 15 mg or placebo for about 3 years. The mean age of participants was 86.6 years and 57% were women. Baseline characteristics, including history of bleeding, were similar between groups.
Patient physical condition was assessed via five parameters: weight loss, grip strength, walking speed, exhaustion, and activity level. This yielded a frailty score, with one point given for each parameter: 0 indicated robust; 1 or 2, prefrail; and 3 or higher, frail. For this analysis, robust (6.5% of patients) and prefrail (51%) were combined and categorized as nonfrail.
In the placebo group, estimated event rates for stroke or SSE were 7.1% per patient-year among frail patients and 6.1% per patient-year among those who were nonfrail.
In the edoxaban group, SSE occurred at an estimated event rate of 2.5% of frail patients and 1.5% of nonfrail patients (adjusted HR, 1.41).
The edoxaban group “consistently had fewer SSE events regardless of frailty status including each frailty assessment parameter, and there was no heterogeneity between the groups,” the authors wrote, with similar trends for the association of edoxaban 15 mg for each frailty assessment parameter.
However, major bleeding and major or clinically relevant nonmajor (CRNM) bleeding events were both higher with edoxaban, regardless of frailty status.
More specifically, in the placebo group, the incidence of major bleeding was 2.3% in the frail group and 1.5% in the nonfrail group (adjusted HR, 1.48) versus 3.7% and 2.9%, respectively, in the edoxaban group (adjusted HR, 1.04).
In addition, exhaustion was related to a significantly increased risk of major or CRNM bleeding in frail versus nonfrail patients (16.3% vs. 8.4%; adjusted HR, 1.97). The incidences were all higher in the edoxaban group, irrespective of frailty status.
Furthermore, although both all-cause death and the net clinical composite outcome of stroke or SSE occurred more frequently in frail than in nonfrail patients, there was no association with frailty status between the edoxaban and placebo groups.
Findings unrelated to edoxaban were also noteworthy. “Surprisingly, grip strength showed an association with adverse events,” the authors wrote. Among those with lower grip strength, “there was nearly a 3-fold increase in risk of SSE and major bleeding and a more than 16-fold significant increase in risk of death. In addition, in those with exhaustion, there was nearly a 2-fold significant increase in major or CRNM bleeding.”
Thus, they suggested, in this patient population, “an objective physical assessment of grip strength or exhaustion in addition to the well-known walking speed may more accurately estimate the risks of clinical outcomes than the overall frailty assessment.”
Head-to-head comparisons needed
Commenting on the findings, Richard Kovach, MD, chair of the interventional cardiology division at Deborah Heart and Lung Center, Browns Mills, N.J., said, “It is interesting that the lower dose of edoxaban still appears to have a statistically significant reduction in the incidence of stroke in this subgroup of extremely frail elderly patients, and it may be useful in this highly selected subset.
“That being said,” he added, “the major complication of oral anticoagulants – major bleeding – appears to be similar to other NOACs prescribed more frequently in the U.S., specifically rivaroxaban and apixaban.”
“Furthermore, in the U.S., frail or complex patients who are not candidates for oral anticoagulant therapy are much more likely to receive a left atrial appendage closure device such as a Watchman or Amulet in order to avoid the risk of bleeding complications completely,” he said. “Procedural success with these devices is extremely high and procedural complications are extremely low. With both devices, the long-term reduction in stroke risk is equivalent to the use of anticoagulant therapy.
“Clearly, more research is needed to compare the outcomes with edoxaban against other NOACs,” Dr. Kovach concluded. “A head-to-head comparison of low-dose edoxaban versus left atrial appendage closure in this high-risk group would also be of great clinical value.”
The study was funded by Daiichi Sankyo. Two coauthors are employees of and five have received fees from the company. Dr. Kovach has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Updates on treatment/prevention of VTE in cancer patients
Updated clinical practice guidelines for the treatment and prevention of venous thromboembolism for patients with cancer, including those with cancer and COVID-19, have been released by the International Initiative on Thrombosis and Cancer (ITAC), an academic working group of VTE experts.
“Because patients with cancer have a baseline increased risk of VTE, compared with patients without cancer, the combination of both COVID-19 and cancer – and its effect on VTE risk and treatment – is of concern,” said the authors, led by Dominique Farge, MD, PhD, Nord Universite de Paris.
they added.
The new guidelines were published online in The Lancet Oncology.
“Cancer-associated VTE remains an important clinical problem, associated with increased morbidity and mortality,” Dr. Farge and colleagues observed.
“The ITAC guidelines’ companion free web-based mobile application will assist the practicing clinician with decision making at various levels to provide optimal care of patients with cancer to treat and prevent VTE,” they emphasized. More information is available at itaccme.com.
Cancer patients with COVID
The new section of the guidelines notes that the treatment and prevention of VTE for cancer patients infected with SARS-CoV-2 remain the same as for patients without COVID.
Whether or not cancer patients with COVID-19 are hospitalized, have been discharged, or are ambulatory, they should be assessed for the risk of VTE, as should any other patient. For cancer patients with COVID-19 who are hospitalized, pharmacologic prophylaxis should be given at the same dose and anticoagulant type as for hospitalized cancer patients who do not have COVID-19.
Following discharge, VTE prophylaxis is not advised for cancer patients infected with SARS-CoV-2, and routine primary pharmacologic prophylaxis of VTE for ambulatory patients with COVID-19 is also not recommended, the authors noted.
Initial treatment of established VTE
Initial treatment of established VTE for up to 10 days of anticoagulation should include low-molecular-weight heparin (LMWH) when creatinine clearance is at least 30 mL/min.
“A regimen of LMWH, taken once per day, is recommended unless a twice-per-day regimen is required because of patients’ characteristics,” the authors noted. These characteristics include a high risk of bleeding, moderate renal failure, and the need for technical intervention, including surgery.
If a twice-a-day regimen is required, only enoxaparin at a dose of 1 mg/kg twice daily can be used, the authors cautioned.
For patients with a low risk of gastrointestinal or genitourinary bleeding, rivaroxaban (Xarelto) or apixaban (Eliquis) can be given in the first 10 days, as well as edoxaban (Lixiana). The latter should be started after at least 5 days of parenteral anticoagulation, provided creatinine clearance is at least 30 mL/min.
“Unfractionated heparin as well as fondaparinux (GlaxoSmithKline) can be also used for the initial treatment of established VTE when LMWH or direct oral anticoagulants are contraindicated,” Dr. Farge and colleagues wrote.
Thrombolysis can be considered on a case-by-case basis, although physicians must pay attention to specific contraindications, especially bleeding risk.
“In the initial treatment of VTE, inferior vena cava filters might be considered when anticoagulant treatment is contraindicated or, in the case of pulmonary embolism, when recurrence occurs under optimal anticoagulation,” the authors noted.
Maintenance VTE treatment
For maintenance therapy, which the authors define as early maintenance for up to 6 months and long-term maintenance beyond 6 months, they point out that LMWHs are preferred over vitamin K antagonists for the treatment of VTE when the creatinine clearance is again at least 30 mL/min.
Any of the direct oral anticoagulants (DOAs) – edoxaban, rivaroxaban, or apixaban – is also recommended for the same patients, provided there is no risk of inducing a strong drug-drug interaction or GI absorption is impaired.
However, the DOAs should be used with caution for patients with GI malignancies, especially upper GI cancers, because data show there is an increased risk of GI bleeding with both edoxaban and rivaroxaban.
“LMWH or direct oral anticoagulants should be used for a minimum of 6 months to treat established VTE in patients with cancer,” the authors wrote.
“After 6 months, termination or continuation of anticoagulation (LMWH, direct oral anticoagulants, or vitamin K antagonists) should be based on individual evaluation of the benefit-risk ratio,” they added.
Treatment of VTE recurrence
The guideline authors explain that three options can be considered in the event of VTE recurrence. These include an increase in the LMWH dose by 20%-25%, or a switch to a DOA, or, if patients are taking a DOA, a switch to an LMWH. If the patient is taking a vitamin K antagonist, it can be switched to either an LMWH or a DOA.
For treatment of catheter-related thrombosis, anticoagulant treatment is recommended for a minimum of 3 months and as long as the central venous catheter is in place. In this setting, the LMWHs are recommended.
The central venous catheter can be kept in place if it is functional, well positioned, and is not infected, provided there is good resolution of symptoms under close surveillance while anticoagulants are being administered.
In surgically treated patients, the LMWH, given once a day, to patients with a serum creatinine concentration of at least 30 mL/min can be used to prevent VTE. Alternatively, VTE can be prevented by the use low-dose unfractionated heparin, given three times a day.
“Pharmacological prophylaxis should be started 2-12 h preoperatively and continued for at least 7–10 days,” Dr. Farge and colleagues advised. In this setting, there is insufficient evidence to support the use of fondaparinux or a DOA as an alternative to an LMWH for the prophylaxis of postoperative VTE. “Use of the highest prophylactic dose of LMWH to prevent postoperative VTE in patients with cancer is recommended,” the authors advised.
Furthermore, extended prophylaxis of at least 4 weeks with LMWH is advised to prevent postoperative VTE after major abdominal or pelvic surgery. Mechanical methods are not recommended except when pharmacologic methods are contraindicated. Inferior vena cava filters are also not recommended for routine prophylaxis.
Patients with reduced mobility
For medically treated hospitalized patients with cancer whose mobility is reduced, the authors recommend prophylaxis with either an LMWH or fondaparinux, provided their creatinine clearance is at least 30 mL/min. These patients can also be treated with unfractionated heparin, they add.
In contrast, DOAs are not recommended – at least not routinely – in this setting, the authors cautioned. Primary pharmacologic prophylaxis of VTE with either LMWH or DOAs – either rivaroxaban or apixaban – is indicated in ambulatory patients with locally advanced or metastatic pancreatic cancer who are receiving systemic anticancer therapy, provided they are at low risk of bleeding.
However, primary pharmacologic prophylaxis with LMWH is not recommended outside of a clinical trial for patients with locally advanced or metastatic lung cancer who are undergoing systemic anticancer therapy, even for patients who are at low risk of bleeding.
For ambulatory patients who are receiving systemic anticancer therapy and who are at intermediate risk of VTE, primary prophylaxis with rivaroxaban or apixaban is recommended for those with myeloma who are receiving immunomodulatory therapy plus steroids or other systemic therapies.
In this setting, oral anticoagulants should consist of a vitamin K antagonist, given at low or therapeutic doses, or apixaban, given at prophylactic doses. Alternatively, LMWH, given at prophylactic doses, or low-dose aspirin, given at a dose of 100 mg/day, can be used.
Catheter-related thrombosis
Use of anticoagulation for routine prophylaxis of catheter-related thrombosis is not recommended. Catheters should be inserted on the right side in the jugular vein, and the distal extremity of the central catheter should be located at the junction of the superior vena cava and the right atrium. “In patients requiring central venous catheters, we suggest the use of implanted ports over peripheral inserted central catheter lines,” the authors noted.
The authors described a number of unique situations regarding the treatment of VTE. These situations include patients with a brain tumor, for whom treatment of established VTE should favor either LMWH or a DOA. The authors also recommended the use of LMWH or unfractionated heparin, started postoperatively, for the prevention of VTE for patients undergoing neurosurgery.
In contrast, pharmacologic prophylaxis of VTE in medically treated patients with a brain tumor who are not undergoing neurosurgery is not recommended. “In the presence of severe renal failure...we suggest using unfractionated heparin followed by early vitamin K antagonists (possibly from day 1) or LMWH adjusted to anti-Xa concentration of the treatment of established VTE,” Dr. Farge and colleagues wrote.
Anticoagulant treatment is also recommended for a minimum of 3 months for children with symptomatic catheter-related thrombosis and as long as the central venous catheter is in place. For children with acute lymphoblastic leukemia who are undergoing induction chemotherapy, LMWH is also recommended as thromboprophylaxis.
For children who require a central venous catheter, the authors suggested that physicians use implanted ports over peripherally inserted central lines.
A version of this article first appeared on Medscape.com.
Updated clinical practice guidelines for the treatment and prevention of venous thromboembolism for patients with cancer, including those with cancer and COVID-19, have been released by the International Initiative on Thrombosis and Cancer (ITAC), an academic working group of VTE experts.
“Because patients with cancer have a baseline increased risk of VTE, compared with patients without cancer, the combination of both COVID-19 and cancer – and its effect on VTE risk and treatment – is of concern,” said the authors, led by Dominique Farge, MD, PhD, Nord Universite de Paris.
they added.
The new guidelines were published online in The Lancet Oncology.
“Cancer-associated VTE remains an important clinical problem, associated with increased morbidity and mortality,” Dr. Farge and colleagues observed.
“The ITAC guidelines’ companion free web-based mobile application will assist the practicing clinician with decision making at various levels to provide optimal care of patients with cancer to treat and prevent VTE,” they emphasized. More information is available at itaccme.com.
Cancer patients with COVID
The new section of the guidelines notes that the treatment and prevention of VTE for cancer patients infected with SARS-CoV-2 remain the same as for patients without COVID.
Whether or not cancer patients with COVID-19 are hospitalized, have been discharged, or are ambulatory, they should be assessed for the risk of VTE, as should any other patient. For cancer patients with COVID-19 who are hospitalized, pharmacologic prophylaxis should be given at the same dose and anticoagulant type as for hospitalized cancer patients who do not have COVID-19.
Following discharge, VTE prophylaxis is not advised for cancer patients infected with SARS-CoV-2, and routine primary pharmacologic prophylaxis of VTE for ambulatory patients with COVID-19 is also not recommended, the authors noted.
Initial treatment of established VTE
Initial treatment of established VTE for up to 10 days of anticoagulation should include low-molecular-weight heparin (LMWH) when creatinine clearance is at least 30 mL/min.
“A regimen of LMWH, taken once per day, is recommended unless a twice-per-day regimen is required because of patients’ characteristics,” the authors noted. These characteristics include a high risk of bleeding, moderate renal failure, and the need for technical intervention, including surgery.
If a twice-a-day regimen is required, only enoxaparin at a dose of 1 mg/kg twice daily can be used, the authors cautioned.
For patients with a low risk of gastrointestinal or genitourinary bleeding, rivaroxaban (Xarelto) or apixaban (Eliquis) can be given in the first 10 days, as well as edoxaban (Lixiana). The latter should be started after at least 5 days of parenteral anticoagulation, provided creatinine clearance is at least 30 mL/min.
“Unfractionated heparin as well as fondaparinux (GlaxoSmithKline) can be also used for the initial treatment of established VTE when LMWH or direct oral anticoagulants are contraindicated,” Dr. Farge and colleagues wrote.
Thrombolysis can be considered on a case-by-case basis, although physicians must pay attention to specific contraindications, especially bleeding risk.
“In the initial treatment of VTE, inferior vena cava filters might be considered when anticoagulant treatment is contraindicated or, in the case of pulmonary embolism, when recurrence occurs under optimal anticoagulation,” the authors noted.
Maintenance VTE treatment
For maintenance therapy, which the authors define as early maintenance for up to 6 months and long-term maintenance beyond 6 months, they point out that LMWHs are preferred over vitamin K antagonists for the treatment of VTE when the creatinine clearance is again at least 30 mL/min.
Any of the direct oral anticoagulants (DOAs) – edoxaban, rivaroxaban, or apixaban – is also recommended for the same patients, provided there is no risk of inducing a strong drug-drug interaction or GI absorption is impaired.
However, the DOAs should be used with caution for patients with GI malignancies, especially upper GI cancers, because data show there is an increased risk of GI bleeding with both edoxaban and rivaroxaban.
“LMWH or direct oral anticoagulants should be used for a minimum of 6 months to treat established VTE in patients with cancer,” the authors wrote.
“After 6 months, termination or continuation of anticoagulation (LMWH, direct oral anticoagulants, or vitamin K antagonists) should be based on individual evaluation of the benefit-risk ratio,” they added.
Treatment of VTE recurrence
The guideline authors explain that three options can be considered in the event of VTE recurrence. These include an increase in the LMWH dose by 20%-25%, or a switch to a DOA, or, if patients are taking a DOA, a switch to an LMWH. If the patient is taking a vitamin K antagonist, it can be switched to either an LMWH or a DOA.
For treatment of catheter-related thrombosis, anticoagulant treatment is recommended for a minimum of 3 months and as long as the central venous catheter is in place. In this setting, the LMWHs are recommended.
The central venous catheter can be kept in place if it is functional, well positioned, and is not infected, provided there is good resolution of symptoms under close surveillance while anticoagulants are being administered.
In surgically treated patients, the LMWH, given once a day, to patients with a serum creatinine concentration of at least 30 mL/min can be used to prevent VTE. Alternatively, VTE can be prevented by the use low-dose unfractionated heparin, given three times a day.
“Pharmacological prophylaxis should be started 2-12 h preoperatively and continued for at least 7–10 days,” Dr. Farge and colleagues advised. In this setting, there is insufficient evidence to support the use of fondaparinux or a DOA as an alternative to an LMWH for the prophylaxis of postoperative VTE. “Use of the highest prophylactic dose of LMWH to prevent postoperative VTE in patients with cancer is recommended,” the authors advised.
Furthermore, extended prophylaxis of at least 4 weeks with LMWH is advised to prevent postoperative VTE after major abdominal or pelvic surgery. Mechanical methods are not recommended except when pharmacologic methods are contraindicated. Inferior vena cava filters are also not recommended for routine prophylaxis.
Patients with reduced mobility
For medically treated hospitalized patients with cancer whose mobility is reduced, the authors recommend prophylaxis with either an LMWH or fondaparinux, provided their creatinine clearance is at least 30 mL/min. These patients can also be treated with unfractionated heparin, they add.
In contrast, DOAs are not recommended – at least not routinely – in this setting, the authors cautioned. Primary pharmacologic prophylaxis of VTE with either LMWH or DOAs – either rivaroxaban or apixaban – is indicated in ambulatory patients with locally advanced or metastatic pancreatic cancer who are receiving systemic anticancer therapy, provided they are at low risk of bleeding.
However, primary pharmacologic prophylaxis with LMWH is not recommended outside of a clinical trial for patients with locally advanced or metastatic lung cancer who are undergoing systemic anticancer therapy, even for patients who are at low risk of bleeding.
For ambulatory patients who are receiving systemic anticancer therapy and who are at intermediate risk of VTE, primary prophylaxis with rivaroxaban or apixaban is recommended for those with myeloma who are receiving immunomodulatory therapy plus steroids or other systemic therapies.
In this setting, oral anticoagulants should consist of a vitamin K antagonist, given at low or therapeutic doses, or apixaban, given at prophylactic doses. Alternatively, LMWH, given at prophylactic doses, or low-dose aspirin, given at a dose of 100 mg/day, can be used.
Catheter-related thrombosis
Use of anticoagulation for routine prophylaxis of catheter-related thrombosis is not recommended. Catheters should be inserted on the right side in the jugular vein, and the distal extremity of the central catheter should be located at the junction of the superior vena cava and the right atrium. “In patients requiring central venous catheters, we suggest the use of implanted ports over peripheral inserted central catheter lines,” the authors noted.
The authors described a number of unique situations regarding the treatment of VTE. These situations include patients with a brain tumor, for whom treatment of established VTE should favor either LMWH or a DOA. The authors also recommended the use of LMWH or unfractionated heparin, started postoperatively, for the prevention of VTE for patients undergoing neurosurgery.
In contrast, pharmacologic prophylaxis of VTE in medically treated patients with a brain tumor who are not undergoing neurosurgery is not recommended. “In the presence of severe renal failure...we suggest using unfractionated heparin followed by early vitamin K antagonists (possibly from day 1) or LMWH adjusted to anti-Xa concentration of the treatment of established VTE,” Dr. Farge and colleagues wrote.
Anticoagulant treatment is also recommended for a minimum of 3 months for children with symptomatic catheter-related thrombosis and as long as the central venous catheter is in place. For children with acute lymphoblastic leukemia who are undergoing induction chemotherapy, LMWH is also recommended as thromboprophylaxis.
For children who require a central venous catheter, the authors suggested that physicians use implanted ports over peripherally inserted central lines.
A version of this article first appeared on Medscape.com.
Updated clinical practice guidelines for the treatment and prevention of venous thromboembolism for patients with cancer, including those with cancer and COVID-19, have been released by the International Initiative on Thrombosis and Cancer (ITAC), an academic working group of VTE experts.
“Because patients with cancer have a baseline increased risk of VTE, compared with patients without cancer, the combination of both COVID-19 and cancer – and its effect on VTE risk and treatment – is of concern,” said the authors, led by Dominique Farge, MD, PhD, Nord Universite de Paris.
they added.
The new guidelines were published online in The Lancet Oncology.
“Cancer-associated VTE remains an important clinical problem, associated with increased morbidity and mortality,” Dr. Farge and colleagues observed.
“The ITAC guidelines’ companion free web-based mobile application will assist the practicing clinician with decision making at various levels to provide optimal care of patients with cancer to treat and prevent VTE,” they emphasized. More information is available at itaccme.com.
Cancer patients with COVID
The new section of the guidelines notes that the treatment and prevention of VTE for cancer patients infected with SARS-CoV-2 remain the same as for patients without COVID.
Whether or not cancer patients with COVID-19 are hospitalized, have been discharged, or are ambulatory, they should be assessed for the risk of VTE, as should any other patient. For cancer patients with COVID-19 who are hospitalized, pharmacologic prophylaxis should be given at the same dose and anticoagulant type as for hospitalized cancer patients who do not have COVID-19.
Following discharge, VTE prophylaxis is not advised for cancer patients infected with SARS-CoV-2, and routine primary pharmacologic prophylaxis of VTE for ambulatory patients with COVID-19 is also not recommended, the authors noted.
Initial treatment of established VTE
Initial treatment of established VTE for up to 10 days of anticoagulation should include low-molecular-weight heparin (LMWH) when creatinine clearance is at least 30 mL/min.
“A regimen of LMWH, taken once per day, is recommended unless a twice-per-day regimen is required because of patients’ characteristics,” the authors noted. These characteristics include a high risk of bleeding, moderate renal failure, and the need for technical intervention, including surgery.
If a twice-a-day regimen is required, only enoxaparin at a dose of 1 mg/kg twice daily can be used, the authors cautioned.
For patients with a low risk of gastrointestinal or genitourinary bleeding, rivaroxaban (Xarelto) or apixaban (Eliquis) can be given in the first 10 days, as well as edoxaban (Lixiana). The latter should be started after at least 5 days of parenteral anticoagulation, provided creatinine clearance is at least 30 mL/min.
“Unfractionated heparin as well as fondaparinux (GlaxoSmithKline) can be also used for the initial treatment of established VTE when LMWH or direct oral anticoagulants are contraindicated,” Dr. Farge and colleagues wrote.
Thrombolysis can be considered on a case-by-case basis, although physicians must pay attention to specific contraindications, especially bleeding risk.
“In the initial treatment of VTE, inferior vena cava filters might be considered when anticoagulant treatment is contraindicated or, in the case of pulmonary embolism, when recurrence occurs under optimal anticoagulation,” the authors noted.
Maintenance VTE treatment
For maintenance therapy, which the authors define as early maintenance for up to 6 months and long-term maintenance beyond 6 months, they point out that LMWHs are preferred over vitamin K antagonists for the treatment of VTE when the creatinine clearance is again at least 30 mL/min.
Any of the direct oral anticoagulants (DOAs) – edoxaban, rivaroxaban, or apixaban – is also recommended for the same patients, provided there is no risk of inducing a strong drug-drug interaction or GI absorption is impaired.
However, the DOAs should be used with caution for patients with GI malignancies, especially upper GI cancers, because data show there is an increased risk of GI bleeding with both edoxaban and rivaroxaban.
“LMWH or direct oral anticoagulants should be used for a minimum of 6 months to treat established VTE in patients with cancer,” the authors wrote.
“After 6 months, termination or continuation of anticoagulation (LMWH, direct oral anticoagulants, or vitamin K antagonists) should be based on individual evaluation of the benefit-risk ratio,” they added.
Treatment of VTE recurrence
The guideline authors explain that three options can be considered in the event of VTE recurrence. These include an increase in the LMWH dose by 20%-25%, or a switch to a DOA, or, if patients are taking a DOA, a switch to an LMWH. If the patient is taking a vitamin K antagonist, it can be switched to either an LMWH or a DOA.
For treatment of catheter-related thrombosis, anticoagulant treatment is recommended for a minimum of 3 months and as long as the central venous catheter is in place. In this setting, the LMWHs are recommended.
The central venous catheter can be kept in place if it is functional, well positioned, and is not infected, provided there is good resolution of symptoms under close surveillance while anticoagulants are being administered.
In surgically treated patients, the LMWH, given once a day, to patients with a serum creatinine concentration of at least 30 mL/min can be used to prevent VTE. Alternatively, VTE can be prevented by the use low-dose unfractionated heparin, given three times a day.
“Pharmacological prophylaxis should be started 2-12 h preoperatively and continued for at least 7–10 days,” Dr. Farge and colleagues advised. In this setting, there is insufficient evidence to support the use of fondaparinux or a DOA as an alternative to an LMWH for the prophylaxis of postoperative VTE. “Use of the highest prophylactic dose of LMWH to prevent postoperative VTE in patients with cancer is recommended,” the authors advised.
Furthermore, extended prophylaxis of at least 4 weeks with LMWH is advised to prevent postoperative VTE after major abdominal or pelvic surgery. Mechanical methods are not recommended except when pharmacologic methods are contraindicated. Inferior vena cava filters are also not recommended for routine prophylaxis.
Patients with reduced mobility
For medically treated hospitalized patients with cancer whose mobility is reduced, the authors recommend prophylaxis with either an LMWH or fondaparinux, provided their creatinine clearance is at least 30 mL/min. These patients can also be treated with unfractionated heparin, they add.
In contrast, DOAs are not recommended – at least not routinely – in this setting, the authors cautioned. Primary pharmacologic prophylaxis of VTE with either LMWH or DOAs – either rivaroxaban or apixaban – is indicated in ambulatory patients with locally advanced or metastatic pancreatic cancer who are receiving systemic anticancer therapy, provided they are at low risk of bleeding.
However, primary pharmacologic prophylaxis with LMWH is not recommended outside of a clinical trial for patients with locally advanced or metastatic lung cancer who are undergoing systemic anticancer therapy, even for patients who are at low risk of bleeding.
For ambulatory patients who are receiving systemic anticancer therapy and who are at intermediate risk of VTE, primary prophylaxis with rivaroxaban or apixaban is recommended for those with myeloma who are receiving immunomodulatory therapy plus steroids or other systemic therapies.
In this setting, oral anticoagulants should consist of a vitamin K antagonist, given at low or therapeutic doses, or apixaban, given at prophylactic doses. Alternatively, LMWH, given at prophylactic doses, or low-dose aspirin, given at a dose of 100 mg/day, can be used.
Catheter-related thrombosis
Use of anticoagulation for routine prophylaxis of catheter-related thrombosis is not recommended. Catheters should be inserted on the right side in the jugular vein, and the distal extremity of the central catheter should be located at the junction of the superior vena cava and the right atrium. “In patients requiring central venous catheters, we suggest the use of implanted ports over peripheral inserted central catheter lines,” the authors noted.
The authors described a number of unique situations regarding the treatment of VTE. These situations include patients with a brain tumor, for whom treatment of established VTE should favor either LMWH or a DOA. The authors also recommended the use of LMWH or unfractionated heparin, started postoperatively, for the prevention of VTE for patients undergoing neurosurgery.
In contrast, pharmacologic prophylaxis of VTE in medically treated patients with a brain tumor who are not undergoing neurosurgery is not recommended. “In the presence of severe renal failure...we suggest using unfractionated heparin followed by early vitamin K antagonists (possibly from day 1) or LMWH adjusted to anti-Xa concentration of the treatment of established VTE,” Dr. Farge and colleagues wrote.
Anticoagulant treatment is also recommended for a minimum of 3 months for children with symptomatic catheter-related thrombosis and as long as the central venous catheter is in place. For children with acute lymphoblastic leukemia who are undergoing induction chemotherapy, LMWH is also recommended as thromboprophylaxis.
For children who require a central venous catheter, the authors suggested that physicians use implanted ports over peripherally inserted central lines.
A version of this article first appeared on Medscape.com.
FROM THE LANCET ONCOLOGY
Long COVID doubles risk of some serious outcomes in children, teens
Researchers from the Centers for Disease Control and Prevention report that
Heart inflammation; a blood clot in the lung; or a blood clot in the lower leg, thigh, or pelvis were the most common bad outcomes in a new study. Even though the risk was higher for these and some other serious events, the overall numbers were small.
“Many of these conditions were rare or uncommon among children in this analysis, but even a small increase in these conditions is notable,” a CDC new release stated.
The investigators said their findings stress the importance of COVID-19 vaccination in Americans under the age of 18.
The study was published online in the CDC’s Morbidity and Mortality Weekly Report.
Less is known about long COVID in children
Lyudmyla Kompaniyets, PhD, and colleagues noted that most research on long COVID to date has been done in adults, so little information is available about the risks to Americans ages 17 and younger.
To learn more, they compared post–COVID-19 symptoms and conditions between 781,419 children and teenagers with confirmed COVID-19 to another 2,344,257 without COVID-19. They looked at medical claims and laboratory data for these children and teenagers from March 1, 2020, through Jan. 31, 2022, to see who got any of 15 specific outcomes linked to long COVID-19.
Long COVID was defined as a condition where symptoms that last for or begin at least 4 weeks after a COVID-19 diagnosis.
Compared to children with no history of a COVID-19 diagnosis, the long COVID-19 group was 101% more likely to have an acute pulmonary embolism, 99% more likely to have myocarditis or cardiomyopathy, 87% more likely to have a venous thromboembolic event, 32% more likely to have acute and unspecified renal failure, and 23% more likely to have type 1 diabetes.
“This report points to the fact that the risks of COVID infection itself, both in terms of the acute effects, MIS-C [multisystem inflammatory syndrome in children], as well as the long-term effects, are real, are concerning, and are potentially very serious,” said Stuart Berger, MD, chair of the American Academy of Pediatrics Section on Cardiology and Cardiac Surgery.
“The message that we should take away from this is that we should be very keen on all the methods of prevention for COVID, especially the vaccine,” said Dr. Berger, chief of cardiology in the department of pediatrics at Northwestern University in Chicago.
A ‘wake-up call’
The study findings are “sobering” and are “a reminder of the seriousness of COVID infection,” says Gregory Poland, MD, an infectious disease expert at the Mayo Clinic in Rochester, Minn.
“When you look in particular at the more serious complications from COVID in this young age group, those are life-altering complications that will have consequences and ramifications throughout their lives,” he said.
“I would take this as a serious wake-up call to parents [at a time when] the immunization rates in younger children are so pitifully low,” Dr. Poland said.
Still early days
The study is suggestive but not definitive, said Peter Katona, MD, professor of medicine and infectious diseases expert at the UCLA Fielding School of Public Health.
It’s still too early to draw conclusions about long COVID, including in children, because many questions remain, he said: Should long COVID be defined as symptoms at 1 month or 3 months after infection? How do you define brain fog?
Dr. Katona and colleagues are studying long COVID intervention among students at UCLA to answer some of these questions, including the incidence and effect of early intervention.
The study had “at least seven limitations,” the researchers noted. Among them was the use of medical claims data that noted long COVID outcomes but not how severe they were; some people in the no COVID group might have had the illness but not been diagnosed; and the researchers did not adjust for vaccination status.
Dr. Poland noted that the study was done during surges in COVID variants including Delta and Omicron. In other words, any long COVID effects linked to more recent variants such as BA.5 or BA.2.75 are unknown.
A version of this article first appeared on WebMD.com.
Researchers from the Centers for Disease Control and Prevention report that
Heart inflammation; a blood clot in the lung; or a blood clot in the lower leg, thigh, or pelvis were the most common bad outcomes in a new study. Even though the risk was higher for these and some other serious events, the overall numbers were small.
“Many of these conditions were rare or uncommon among children in this analysis, but even a small increase in these conditions is notable,” a CDC new release stated.
The investigators said their findings stress the importance of COVID-19 vaccination in Americans under the age of 18.
The study was published online in the CDC’s Morbidity and Mortality Weekly Report.
Less is known about long COVID in children
Lyudmyla Kompaniyets, PhD, and colleagues noted that most research on long COVID to date has been done in adults, so little information is available about the risks to Americans ages 17 and younger.
To learn more, they compared post–COVID-19 symptoms and conditions between 781,419 children and teenagers with confirmed COVID-19 to another 2,344,257 without COVID-19. They looked at medical claims and laboratory data for these children and teenagers from March 1, 2020, through Jan. 31, 2022, to see who got any of 15 specific outcomes linked to long COVID-19.
Long COVID was defined as a condition where symptoms that last for or begin at least 4 weeks after a COVID-19 diagnosis.
Compared to children with no history of a COVID-19 diagnosis, the long COVID-19 group was 101% more likely to have an acute pulmonary embolism, 99% more likely to have myocarditis or cardiomyopathy, 87% more likely to have a venous thromboembolic event, 32% more likely to have acute and unspecified renal failure, and 23% more likely to have type 1 diabetes.
“This report points to the fact that the risks of COVID infection itself, both in terms of the acute effects, MIS-C [multisystem inflammatory syndrome in children], as well as the long-term effects, are real, are concerning, and are potentially very serious,” said Stuart Berger, MD, chair of the American Academy of Pediatrics Section on Cardiology and Cardiac Surgery.
“The message that we should take away from this is that we should be very keen on all the methods of prevention for COVID, especially the vaccine,” said Dr. Berger, chief of cardiology in the department of pediatrics at Northwestern University in Chicago.
A ‘wake-up call’
The study findings are “sobering” and are “a reminder of the seriousness of COVID infection,” says Gregory Poland, MD, an infectious disease expert at the Mayo Clinic in Rochester, Minn.
“When you look in particular at the more serious complications from COVID in this young age group, those are life-altering complications that will have consequences and ramifications throughout their lives,” he said.
“I would take this as a serious wake-up call to parents [at a time when] the immunization rates in younger children are so pitifully low,” Dr. Poland said.
Still early days
The study is suggestive but not definitive, said Peter Katona, MD, professor of medicine and infectious diseases expert at the UCLA Fielding School of Public Health.
It’s still too early to draw conclusions about long COVID, including in children, because many questions remain, he said: Should long COVID be defined as symptoms at 1 month or 3 months after infection? How do you define brain fog?
Dr. Katona and colleagues are studying long COVID intervention among students at UCLA to answer some of these questions, including the incidence and effect of early intervention.
The study had “at least seven limitations,” the researchers noted. Among them was the use of medical claims data that noted long COVID outcomes but not how severe they were; some people in the no COVID group might have had the illness but not been diagnosed; and the researchers did not adjust for vaccination status.
Dr. Poland noted that the study was done during surges in COVID variants including Delta and Omicron. In other words, any long COVID effects linked to more recent variants such as BA.5 or BA.2.75 are unknown.
A version of this article first appeared on WebMD.com.
Researchers from the Centers for Disease Control and Prevention report that
Heart inflammation; a blood clot in the lung; or a blood clot in the lower leg, thigh, or pelvis were the most common bad outcomes in a new study. Even though the risk was higher for these and some other serious events, the overall numbers were small.
“Many of these conditions were rare or uncommon among children in this analysis, but even a small increase in these conditions is notable,” a CDC new release stated.
The investigators said their findings stress the importance of COVID-19 vaccination in Americans under the age of 18.
The study was published online in the CDC’s Morbidity and Mortality Weekly Report.
Less is known about long COVID in children
Lyudmyla Kompaniyets, PhD, and colleagues noted that most research on long COVID to date has been done in adults, so little information is available about the risks to Americans ages 17 and younger.
To learn more, they compared post–COVID-19 symptoms and conditions between 781,419 children and teenagers with confirmed COVID-19 to another 2,344,257 without COVID-19. They looked at medical claims and laboratory data for these children and teenagers from March 1, 2020, through Jan. 31, 2022, to see who got any of 15 specific outcomes linked to long COVID-19.
Long COVID was defined as a condition where symptoms that last for or begin at least 4 weeks after a COVID-19 diagnosis.
Compared to children with no history of a COVID-19 diagnosis, the long COVID-19 group was 101% more likely to have an acute pulmonary embolism, 99% more likely to have myocarditis or cardiomyopathy, 87% more likely to have a venous thromboembolic event, 32% more likely to have acute and unspecified renal failure, and 23% more likely to have type 1 diabetes.
“This report points to the fact that the risks of COVID infection itself, both in terms of the acute effects, MIS-C [multisystem inflammatory syndrome in children], as well as the long-term effects, are real, are concerning, and are potentially very serious,” said Stuart Berger, MD, chair of the American Academy of Pediatrics Section on Cardiology and Cardiac Surgery.
“The message that we should take away from this is that we should be very keen on all the methods of prevention for COVID, especially the vaccine,” said Dr. Berger, chief of cardiology in the department of pediatrics at Northwestern University in Chicago.
A ‘wake-up call’
The study findings are “sobering” and are “a reminder of the seriousness of COVID infection,” says Gregory Poland, MD, an infectious disease expert at the Mayo Clinic in Rochester, Minn.
“When you look in particular at the more serious complications from COVID in this young age group, those are life-altering complications that will have consequences and ramifications throughout their lives,” he said.
“I would take this as a serious wake-up call to parents [at a time when] the immunization rates in younger children are so pitifully low,” Dr. Poland said.
Still early days
The study is suggestive but not definitive, said Peter Katona, MD, professor of medicine and infectious diseases expert at the UCLA Fielding School of Public Health.
It’s still too early to draw conclusions about long COVID, including in children, because many questions remain, he said: Should long COVID be defined as symptoms at 1 month or 3 months after infection? How do you define brain fog?
Dr. Katona and colleagues are studying long COVID intervention among students at UCLA to answer some of these questions, including the incidence and effect of early intervention.
The study had “at least seven limitations,” the researchers noted. Among them was the use of medical claims data that noted long COVID outcomes but not how severe they were; some people in the no COVID group might have had the illness but not been diagnosed; and the researchers did not adjust for vaccination status.
Dr. Poland noted that the study was done during surges in COVID variants including Delta and Omicron. In other words, any long COVID effects linked to more recent variants such as BA.5 or BA.2.75 are unknown.
A version of this article first appeared on WebMD.com.
FROM THE MMWR
‘Case closed’: Bridging thrombolysis remains ‘gold standard’ in stroke thrombectomy
Two new noninferiority trials address the controversial question of whether thrombolytic therapy can be omitted for acute ischemic stroke in patients undergoing endovascular thrombectomy for large-vessel occlusion.
Both trials show better outcomes when standard bridging thrombolytic therapy is used before thrombectomy, with comparable safety.
The results of SWIFT-DIRECT and DIRECT-SAFE were published online June 22 in The Lancet.
“The case appears closed. Bypass intravenous thrombolysis is highly unlikely to be noninferior to standard care by a clinically acceptable margin for most patients,” writes Pooja Khatri, MD, MSc, department of neurology, University of Cincinnati, in a linked comment.
SWIFT-DIRECT
SWIFT-DIRECT enrolled 408 patients (median age 72; 51% women) with acute stroke due to large vessel occlusion admitted to stroke centers in Europe and Canada. Half were randomly allocated to thrombectomy alone and half to intravenous alteplase and thrombectomy.
Successful reperfusion was less common in patients who had thrombectomy alone (91% vs. 96%; risk difference −5.1%; 95% confidence interval, −10.2 to 0.0, P = .047).
With combination therapy, more patients achieved functional independence with a modified Rankin scale score of 0-2 at 90 days (65% vs. 57%; adjusted risk difference −7.3%; 95% CI, −16·6 to 2·1, lower limit of one-sided 95% CI, −15·1%, crossing the noninferiority margin of −12%).
“Despite a very liberal noninferiority margin and strict inclusion and exclusion criteria aimed at studying a population most likely to benefit from thrombectomy alone, point estimates directionally favored intravenous thrombolysis plus thrombectomy,” Urs Fischer, MD, cochair of the Stroke Center, University Hospital Basel, Switzerland, told this news organization.
“Furthermore, we could demonstrate that overall reperfusion rates were extremely high and yet significantly better in patients receiving intravenous thrombolysis plus thrombectomy than in patients treated with thrombectomy alone, a finding which has not been shown before,” Dr. Fischer said.
There was no significant difference in the risk of symptomatic intracranial bleeding (3% with combination therapy and 2% with thrombectomy alone).
Based on the results, in patients suitable for thrombolysis, skipping it before thrombectomy “is not justified,” the study team concludes.
DIRECT-SAFE
DIRECT-SAFE enrolled 295 patients (median age 69; 43% women) with stroke and large vessel occlusion from Australia, New Zealand, China, and Vietnam, with half undergoing direct thrombectomy and half bridging therapy first.
Functional independence (modified Rankin Scale 0-2 or return to baseline at 90 days) was more common in the bridging group (61% vs. 55%).
Safety outcomes were similar between groups. Symptomatic intracerebral hemorrhage occurred in 2 (1%) patients in the direct group and 1 (1%) patient in the bridging group. There were 22 (15%) deaths in the direct group and 24 in the bridging group.
“There has been concern across the world regarding cost of treatment, together with fears of increasing bleeding risk or clot migration with intravenous thrombolytic,” lead investigator Peter Mitchell, MBBS, director, NeuroIntervention Service, The Royal Melbourne Hospital, Parkville, Victoria, Australia, told this news organization.
“We showed that patients in the bridging treatment arm had better outcomes across the entire study, especially in Asian region patients” and therefore remains “the gold standard,” Dr. Mitchell said.
To date, six published trials have addressed this question of endovascular therapy alone or with thrombolysis – SKIP, DIRECT-MT, MR CLEAN NO IV, SWIFT-DIRECT, and DIRECT-SAFE.
Dr. Fischer said the SWIFT-DIRECT study group plans to perform an individual participant data meta-analysis known as Improving Reperfusion Strategies in Ischemic Stroke (IRIS) of all six trials to see whether there are subgroups of patients in whom thrombectomy alone is as effective as thrombolysis plus thrombectomy.
Subgroups of interest, he said, include patients with early ischemic signs on imaging, those at increased risk for hemorrhagic complications, and patients with a high clot burden.
SWIFT-DIRECT was funding by Medtronic and University Hospital Bern. DIRECT-SAFE was funded by Australian National Health and Medical Research Council and Stryker USA. A complete list of author disclosures is available with the original articles.
A version of this article first appeared on Medscape.com.
Two new noninferiority trials address the controversial question of whether thrombolytic therapy can be omitted for acute ischemic stroke in patients undergoing endovascular thrombectomy for large-vessel occlusion.
Both trials show better outcomes when standard bridging thrombolytic therapy is used before thrombectomy, with comparable safety.
The results of SWIFT-DIRECT and DIRECT-SAFE were published online June 22 in The Lancet.
“The case appears closed. Bypass intravenous thrombolysis is highly unlikely to be noninferior to standard care by a clinically acceptable margin for most patients,” writes Pooja Khatri, MD, MSc, department of neurology, University of Cincinnati, in a linked comment.
SWIFT-DIRECT
SWIFT-DIRECT enrolled 408 patients (median age 72; 51% women) with acute stroke due to large vessel occlusion admitted to stroke centers in Europe and Canada. Half were randomly allocated to thrombectomy alone and half to intravenous alteplase and thrombectomy.
Successful reperfusion was less common in patients who had thrombectomy alone (91% vs. 96%; risk difference −5.1%; 95% confidence interval, −10.2 to 0.0, P = .047).
With combination therapy, more patients achieved functional independence with a modified Rankin scale score of 0-2 at 90 days (65% vs. 57%; adjusted risk difference −7.3%; 95% CI, −16·6 to 2·1, lower limit of one-sided 95% CI, −15·1%, crossing the noninferiority margin of −12%).
“Despite a very liberal noninferiority margin and strict inclusion and exclusion criteria aimed at studying a population most likely to benefit from thrombectomy alone, point estimates directionally favored intravenous thrombolysis plus thrombectomy,” Urs Fischer, MD, cochair of the Stroke Center, University Hospital Basel, Switzerland, told this news organization.
“Furthermore, we could demonstrate that overall reperfusion rates were extremely high and yet significantly better in patients receiving intravenous thrombolysis plus thrombectomy than in patients treated with thrombectomy alone, a finding which has not been shown before,” Dr. Fischer said.
There was no significant difference in the risk of symptomatic intracranial bleeding (3% with combination therapy and 2% with thrombectomy alone).
Based on the results, in patients suitable for thrombolysis, skipping it before thrombectomy “is not justified,” the study team concludes.
DIRECT-SAFE
DIRECT-SAFE enrolled 295 patients (median age 69; 43% women) with stroke and large vessel occlusion from Australia, New Zealand, China, and Vietnam, with half undergoing direct thrombectomy and half bridging therapy first.
Functional independence (modified Rankin Scale 0-2 or return to baseline at 90 days) was more common in the bridging group (61% vs. 55%).
Safety outcomes were similar between groups. Symptomatic intracerebral hemorrhage occurred in 2 (1%) patients in the direct group and 1 (1%) patient in the bridging group. There were 22 (15%) deaths in the direct group and 24 in the bridging group.
“There has been concern across the world regarding cost of treatment, together with fears of increasing bleeding risk or clot migration with intravenous thrombolytic,” lead investigator Peter Mitchell, MBBS, director, NeuroIntervention Service, The Royal Melbourne Hospital, Parkville, Victoria, Australia, told this news organization.
“We showed that patients in the bridging treatment arm had better outcomes across the entire study, especially in Asian region patients” and therefore remains “the gold standard,” Dr. Mitchell said.
To date, six published trials have addressed this question of endovascular therapy alone or with thrombolysis – SKIP, DIRECT-MT, MR CLEAN NO IV, SWIFT-DIRECT, and DIRECT-SAFE.
Dr. Fischer said the SWIFT-DIRECT study group plans to perform an individual participant data meta-analysis known as Improving Reperfusion Strategies in Ischemic Stroke (IRIS) of all six trials to see whether there are subgroups of patients in whom thrombectomy alone is as effective as thrombolysis plus thrombectomy.
Subgroups of interest, he said, include patients with early ischemic signs on imaging, those at increased risk for hemorrhagic complications, and patients with a high clot burden.
SWIFT-DIRECT was funding by Medtronic and University Hospital Bern. DIRECT-SAFE was funded by Australian National Health and Medical Research Council and Stryker USA. A complete list of author disclosures is available with the original articles.
A version of this article first appeared on Medscape.com.
Two new noninferiority trials address the controversial question of whether thrombolytic therapy can be omitted for acute ischemic stroke in patients undergoing endovascular thrombectomy for large-vessel occlusion.
Both trials show better outcomes when standard bridging thrombolytic therapy is used before thrombectomy, with comparable safety.
The results of SWIFT-DIRECT and DIRECT-SAFE were published online June 22 in The Lancet.
“The case appears closed. Bypass intravenous thrombolysis is highly unlikely to be noninferior to standard care by a clinically acceptable margin for most patients,” writes Pooja Khatri, MD, MSc, department of neurology, University of Cincinnati, in a linked comment.
SWIFT-DIRECT
SWIFT-DIRECT enrolled 408 patients (median age 72; 51% women) with acute stroke due to large vessel occlusion admitted to stroke centers in Europe and Canada. Half were randomly allocated to thrombectomy alone and half to intravenous alteplase and thrombectomy.
Successful reperfusion was less common in patients who had thrombectomy alone (91% vs. 96%; risk difference −5.1%; 95% confidence interval, −10.2 to 0.0, P = .047).
With combination therapy, more patients achieved functional independence with a modified Rankin scale score of 0-2 at 90 days (65% vs. 57%; adjusted risk difference −7.3%; 95% CI, −16·6 to 2·1, lower limit of one-sided 95% CI, −15·1%, crossing the noninferiority margin of −12%).
“Despite a very liberal noninferiority margin and strict inclusion and exclusion criteria aimed at studying a population most likely to benefit from thrombectomy alone, point estimates directionally favored intravenous thrombolysis plus thrombectomy,” Urs Fischer, MD, cochair of the Stroke Center, University Hospital Basel, Switzerland, told this news organization.
“Furthermore, we could demonstrate that overall reperfusion rates were extremely high and yet significantly better in patients receiving intravenous thrombolysis plus thrombectomy than in patients treated with thrombectomy alone, a finding which has not been shown before,” Dr. Fischer said.
There was no significant difference in the risk of symptomatic intracranial bleeding (3% with combination therapy and 2% with thrombectomy alone).
Based on the results, in patients suitable for thrombolysis, skipping it before thrombectomy “is not justified,” the study team concludes.
DIRECT-SAFE
DIRECT-SAFE enrolled 295 patients (median age 69; 43% women) with stroke and large vessel occlusion from Australia, New Zealand, China, and Vietnam, with half undergoing direct thrombectomy and half bridging therapy first.
Functional independence (modified Rankin Scale 0-2 or return to baseline at 90 days) was more common in the bridging group (61% vs. 55%).
Safety outcomes were similar between groups. Symptomatic intracerebral hemorrhage occurred in 2 (1%) patients in the direct group and 1 (1%) patient in the bridging group. There were 22 (15%) deaths in the direct group and 24 in the bridging group.
“There has been concern across the world regarding cost of treatment, together with fears of increasing bleeding risk or clot migration with intravenous thrombolytic,” lead investigator Peter Mitchell, MBBS, director, NeuroIntervention Service, The Royal Melbourne Hospital, Parkville, Victoria, Australia, told this news organization.
“We showed that patients in the bridging treatment arm had better outcomes across the entire study, especially in Asian region patients” and therefore remains “the gold standard,” Dr. Mitchell said.
To date, six published trials have addressed this question of endovascular therapy alone or with thrombolysis – SKIP, DIRECT-MT, MR CLEAN NO IV, SWIFT-DIRECT, and DIRECT-SAFE.
Dr. Fischer said the SWIFT-DIRECT study group plans to perform an individual participant data meta-analysis known as Improving Reperfusion Strategies in Ischemic Stroke (IRIS) of all six trials to see whether there are subgroups of patients in whom thrombectomy alone is as effective as thrombolysis plus thrombectomy.
Subgroups of interest, he said, include patients with early ischemic signs on imaging, those at increased risk for hemorrhagic complications, and patients with a high clot burden.
SWIFT-DIRECT was funding by Medtronic and University Hospital Bern. DIRECT-SAFE was funded by Australian National Health and Medical Research Council and Stryker USA. A complete list of author disclosures is available with the original articles.
A version of this article first appeared on Medscape.com.
FROM THE LANCET
Nurses’ cohort study: Endometriosis elevates stroke risk
Women who’ve had endometriosis carry an elevated risk of stroke with them for the rest of their lives, with the greatest risk found in women who’ve had a hysterectomy with an oophorectomy, according to a cohort study of the Nurses’ Health Study.
“This is yet additional evidence that those girls and women with endometriosis are having effects across their lives and in multiple aspects of their health and well-being,” senior study author Stacey A. Missmer, ScD, of the Michigan State University, East Lansing, said in an interview. “This is not, in quotes ‘just a gynecologic condition,’ ” Dr. Missmer added. “It is not strictly about the pelvic pain or infertility, but it really is about the whole health across the life course.”
The study included 112,056 women in the NHSII cohort study who were followed from 1989 to June 2017, documenting 893 incident cases of stroke among them – an incidence of less than 1%. Endometriosis was reported in 5,244 women, and 93% of the cohort were White.
Multivariate adjusted models showed that women who had laparoscopically confirmed endometriosis had a 34% greater risk of stroke than women without a history of endometriosis. Leslie V. Farland, ScD, of the University of Arizona, Tucson, was lead author of the study.
While previous studies have demonstrated an increased risk of cardiovascular disease, heart attack, angina, and atherosclerosis in women who’ve had endometriosis, this is the first study that has confirmed an additional increased risk of stroke, Dr. Missmer said.
Another novel finding, Dr. Missmer said, is that while the CVD risks for these women “seem to peak at an earlier age,” the study found no age differences for stroke risk. “That also reinforces that these stroke events are often happening in an age range typical for stroke, which is further removed from when women are thinking about their gynecologic health specifically.”
These findings don’t translate into a significantly greater risk for stroke overall in women who’ve had endometriosis, Dr. Missmer said. She characterized the risk as “not negligible, but it’s not a huge increased risk.” The absolute risk is still fairly low, she said.
“We don’t want to give the impression that all women with endometriosis need to be panicked or fearful about stroke, she said. “Rather, the messaging is that this yet another bit of evidence that whole health care for those with endometriosis is important.”
Women who’ve had endometriosis and their primary care providers need to be attuned to stroke risk, she said. “This is a critical condition that primary care physicians need to engage around, and perhaps if symptoms related to cardiovascular and cerebrovascular disease emerge in their patients, they need to be engaging cardiology and similar types of support. This is not just about the gynecologists.”
The study also explored other factors that may contribute to stroke risk, with the most significant being hysterectomy with bilateral oophorectomy, Dr. Missmer said.
This study was unique because it used laparoscopically confirmed rather than self-reported endometriosis, said Louise D. McCullough, MD, neurology chair at the University of Texas Health Science Center, Houston. Another strength of the study she noted was its longitudinal design, although the cohort study design yielded a low number of stroke patients.
“Regardless, I do think it was a very important study because we have a growing recognition about how women’s health and factors such as pregnancy, infertility, parity, complications, and gonadal hormones such as estrogen can influence a woman’s stroke risk much later in life,” Dr. McCullough said in an interview.
Future studies into the relationship between endometriosis and CVD and stroke risk should focus on the mechanism behind the inflammation that occurs in endometriosis, Dr. McCullough said. “Part of it is probably the loss of hormones if a patient has to have an oophorectomy, but part of it is just what do these diseases do for a woman’s later risk – and for primary care physicians, ob.gyns., and stroke neurologists to recognize that these are questions we should ask: Have you ever had eclampsia or preeclampsia? Did you have endometriosis? Have you had miscarriages?”
The study received funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development and the National Institute for Neurological Disorders and Stroke. Dr. Missmer disclosed relationships with Shanghai Huilun Biotechnology, Roche, and AbbVie. Dr. McCullough has no relevant disclosures.
Women who’ve had endometriosis carry an elevated risk of stroke with them for the rest of their lives, with the greatest risk found in women who’ve had a hysterectomy with an oophorectomy, according to a cohort study of the Nurses’ Health Study.
“This is yet additional evidence that those girls and women with endometriosis are having effects across their lives and in multiple aspects of their health and well-being,” senior study author Stacey A. Missmer, ScD, of the Michigan State University, East Lansing, said in an interview. “This is not, in quotes ‘just a gynecologic condition,’ ” Dr. Missmer added. “It is not strictly about the pelvic pain or infertility, but it really is about the whole health across the life course.”
The study included 112,056 women in the NHSII cohort study who were followed from 1989 to June 2017, documenting 893 incident cases of stroke among them – an incidence of less than 1%. Endometriosis was reported in 5,244 women, and 93% of the cohort were White.
Multivariate adjusted models showed that women who had laparoscopically confirmed endometriosis had a 34% greater risk of stroke than women without a history of endometriosis. Leslie V. Farland, ScD, of the University of Arizona, Tucson, was lead author of the study.
While previous studies have demonstrated an increased risk of cardiovascular disease, heart attack, angina, and atherosclerosis in women who’ve had endometriosis, this is the first study that has confirmed an additional increased risk of stroke, Dr. Missmer said.
Another novel finding, Dr. Missmer said, is that while the CVD risks for these women “seem to peak at an earlier age,” the study found no age differences for stroke risk. “That also reinforces that these stroke events are often happening in an age range typical for stroke, which is further removed from when women are thinking about their gynecologic health specifically.”
These findings don’t translate into a significantly greater risk for stroke overall in women who’ve had endometriosis, Dr. Missmer said. She characterized the risk as “not negligible, but it’s not a huge increased risk.” The absolute risk is still fairly low, she said.
“We don’t want to give the impression that all women with endometriosis need to be panicked or fearful about stroke, she said. “Rather, the messaging is that this yet another bit of evidence that whole health care for those with endometriosis is important.”
Women who’ve had endometriosis and their primary care providers need to be attuned to stroke risk, she said. “This is a critical condition that primary care physicians need to engage around, and perhaps if symptoms related to cardiovascular and cerebrovascular disease emerge in their patients, they need to be engaging cardiology and similar types of support. This is not just about the gynecologists.”
The study also explored other factors that may contribute to stroke risk, with the most significant being hysterectomy with bilateral oophorectomy, Dr. Missmer said.
This study was unique because it used laparoscopically confirmed rather than self-reported endometriosis, said Louise D. McCullough, MD, neurology chair at the University of Texas Health Science Center, Houston. Another strength of the study she noted was its longitudinal design, although the cohort study design yielded a low number of stroke patients.
“Regardless, I do think it was a very important study because we have a growing recognition about how women’s health and factors such as pregnancy, infertility, parity, complications, and gonadal hormones such as estrogen can influence a woman’s stroke risk much later in life,” Dr. McCullough said in an interview.
Future studies into the relationship between endometriosis and CVD and stroke risk should focus on the mechanism behind the inflammation that occurs in endometriosis, Dr. McCullough said. “Part of it is probably the loss of hormones if a patient has to have an oophorectomy, but part of it is just what do these diseases do for a woman’s later risk – and for primary care physicians, ob.gyns., and stroke neurologists to recognize that these are questions we should ask: Have you ever had eclampsia or preeclampsia? Did you have endometriosis? Have you had miscarriages?”
The study received funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development and the National Institute for Neurological Disorders and Stroke. Dr. Missmer disclosed relationships with Shanghai Huilun Biotechnology, Roche, and AbbVie. Dr. McCullough has no relevant disclosures.
Women who’ve had endometriosis carry an elevated risk of stroke with them for the rest of their lives, with the greatest risk found in women who’ve had a hysterectomy with an oophorectomy, according to a cohort study of the Nurses’ Health Study.
“This is yet additional evidence that those girls and women with endometriosis are having effects across their lives and in multiple aspects of their health and well-being,” senior study author Stacey A. Missmer, ScD, of the Michigan State University, East Lansing, said in an interview. “This is not, in quotes ‘just a gynecologic condition,’ ” Dr. Missmer added. “It is not strictly about the pelvic pain or infertility, but it really is about the whole health across the life course.”
The study included 112,056 women in the NHSII cohort study who were followed from 1989 to June 2017, documenting 893 incident cases of stroke among them – an incidence of less than 1%. Endometriosis was reported in 5,244 women, and 93% of the cohort were White.
Multivariate adjusted models showed that women who had laparoscopically confirmed endometriosis had a 34% greater risk of stroke than women without a history of endometriosis. Leslie V. Farland, ScD, of the University of Arizona, Tucson, was lead author of the study.
While previous studies have demonstrated an increased risk of cardiovascular disease, heart attack, angina, and atherosclerosis in women who’ve had endometriosis, this is the first study that has confirmed an additional increased risk of stroke, Dr. Missmer said.
Another novel finding, Dr. Missmer said, is that while the CVD risks for these women “seem to peak at an earlier age,” the study found no age differences for stroke risk. “That also reinforces that these stroke events are often happening in an age range typical for stroke, which is further removed from when women are thinking about their gynecologic health specifically.”
These findings don’t translate into a significantly greater risk for stroke overall in women who’ve had endometriosis, Dr. Missmer said. She characterized the risk as “not negligible, but it’s not a huge increased risk.” The absolute risk is still fairly low, she said.
“We don’t want to give the impression that all women with endometriosis need to be panicked or fearful about stroke, she said. “Rather, the messaging is that this yet another bit of evidence that whole health care for those with endometriosis is important.”
Women who’ve had endometriosis and their primary care providers need to be attuned to stroke risk, she said. “This is a critical condition that primary care physicians need to engage around, and perhaps if symptoms related to cardiovascular and cerebrovascular disease emerge in their patients, they need to be engaging cardiology and similar types of support. This is not just about the gynecologists.”
The study also explored other factors that may contribute to stroke risk, with the most significant being hysterectomy with bilateral oophorectomy, Dr. Missmer said.
This study was unique because it used laparoscopically confirmed rather than self-reported endometriosis, said Louise D. McCullough, MD, neurology chair at the University of Texas Health Science Center, Houston. Another strength of the study she noted was its longitudinal design, although the cohort study design yielded a low number of stroke patients.
“Regardless, I do think it was a very important study because we have a growing recognition about how women’s health and factors such as pregnancy, infertility, parity, complications, and gonadal hormones such as estrogen can influence a woman’s stroke risk much later in life,” Dr. McCullough said in an interview.
Future studies into the relationship between endometriosis and CVD and stroke risk should focus on the mechanism behind the inflammation that occurs in endometriosis, Dr. McCullough said. “Part of it is probably the loss of hormones if a patient has to have an oophorectomy, but part of it is just what do these diseases do for a woman’s later risk – and for primary care physicians, ob.gyns., and stroke neurologists to recognize that these are questions we should ask: Have you ever had eclampsia or preeclampsia? Did you have endometriosis? Have you had miscarriages?”
The study received funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development and the National Institute for Neurological Disorders and Stroke. Dr. Missmer disclosed relationships with Shanghai Huilun Biotechnology, Roche, and AbbVie. Dr. McCullough has no relevant disclosures.
FROM STROKE
Interventional imagers take on central role and more radiation
Interventional echocardiographers have become an increasingly critical part of the structural heart team but may be paying the price in terms of radiation exposure, a new study suggests.
Results showed that interventional echocardiographers receive threefold higher head-level radiation doses than interventional cardiologists during left atrial appendage occlusion (LAAO) closures and 11-fold higher doses during mitral valve transcatheter edge-to-edge repair (TEER).
“Over the last 5-10 years there’s been exponential growth in these two procedures, TEER and LAAO, and while that’s been very exciting, I think there hasn’t been as much research into how to protect these individuals,” lead author David A. McNamara, MD, MPH, Spectrum Health, Grand Rapids, Mich., told this news organization.
The study was published in JAMA Network Open.
Previous studies have focused largely on radiation exposure and mitigation efforts during coronary interventions, but the room set-up for LAAO and TEER and shielding techniques to mitigate radiation exposure are vastly different, he noted.
A 2017 study reported that radiation exposure was significantly higher for imaging specialists than structural heart specialists and varied by procedure type.
For the current study, Dr. McNamara, an echocardiographer by training, and colleagues collected data from 30 consecutive LAAO and 30 consecutive TEER procedures performed at their institution between July 2016 and January 2018.
Interventional imagers, interventional cardiologists, and sonographers all wore a lead skirt, apron, and thyroid collar, as well as a dosimeter to collect radiation data.
Interventional cardiologists stood immediately adjacent to the procedure table and used a ceiling-mounted, upper-body lead shield and a lower-body shield extending from the table to the floor. The echocardiographer stood at the patient’s head and used a mobile accessory shield raised to a height that allowed the imager to extend their arms over the shield to manipulate a transesophageal echocardiogram probe throughout the case.
The median fluoroscopy time was 9.2 minutes for LAAO and 20.9 minutes for TEER. The median air kerma was 164 mGy and 109 mGy, respectively.
Interventional echocardiographers received a median per case radiation dose of 10.6 µSv, compared with 2.1 µSv for interventional cardiologists. The result was similar for TEER (10.5 vs. 0.9 µSv) and LAAO (10.6 vs. 3.5 µSv; P < .001 for all).
The odds of interventional echocardiographers having a radiation dose greater than 20 µSV were 7.5 times greater than for interventional cardiologists (P < .001).
“It’s not the direction of the association, but really the magnitude is what surprised us,” observed Dr. McNamara.
The team was pleasantly surprised, he said, that sonographers, a “vastly understudied group,” received significantly lower median radiation doses than interventional imagers during LAAO (0.2 µSV) and TEER procedures (0.0 µSv; P < .001 for both).
The average distances from the radiation source were 26 cm (10.2 inches) for the echocardiographer, 36 cm (14.2 inches) for the interventional cardiologist, and 250 cm (8.2 feet) for the sonographer.
“These folks [sonographers] were much further away than both the physicians performing these cases, and that is what we hypothesize drove their very low rates, but that should also help inform our mitigation techniques for physicians and for all other cath lab members in the room,” Dr. McNamara said.
He noted that Spectrum Health has been at the forefront in terms of research into radiation exposure and mitigation, has good institutional radiation safety education, and used dose-lowering fluoroscopy systems (AlluraClarity, Philips) with real-time image noise reduction technology and a frame rate of 15 frames per second for the study. “So we’re hopeful that this actually represents a somewhat best-case scenario for what is being done at multiple institutions throughout the nation.”
Nevertheless, there is a huge amount of variability in radiation exposure, Dr. McNamara observed. “First and foremost, we really just have to identify our problem and highlight that this is something that needs some advocacy from our [professional] groups.”
Sunil Rao, MD, the newly minted president of the Society of Cardiovascular Angiography and Interventions (SCAI), said, “This is a really important study, because it expands the potential occupational hazards outside of what we traditionally think of as the team that does interventional procedures ... we have to recognize that the procedures we’re doing in the cath lab have changed.”
“Showing that our colleagues are getting 3-10 times radiation exposure is a really important piece of information to have out there. I think it’s really sort of a call to action,” Dr. Rao, professor of medicine at Duke University, Durham, N.C., told this news organization.
Nevertheless, he observed that practices have shifted somewhat since the study and that interventional cardiologists working with imaging physicians are more cognizant of radiation exposure issues.
“When I talk with our folks here that are doing structural heart procedures, they’re making sure that they’re not stepping on the fluoro pedal while the echocardiographer is manipulating the TE probe,” Dr. Rao said. “The echocardiographer is oftentimes using a much bigger shield than what was described in the study, and remember there’s an exponential decrease in the radiation exposure by distance, so they’re stepping back during the fluoroscopy time.”
Although the volume of TEER and LAAO procedures, as well as tricuspid interventions, will continue to climb, Dr. Rao said he expects radiation exposure to the imaging cardiologist will fall thanks to greater use of newer-generation imaging systems with dose-reduction features and better shielding strategies.
He noted that several of SCAI’s “best practices” documents call attention to radiation safety and that SCAI is creating a pathway where imaging cardiologists can become fellows of the society, which was traditionally reserved for interventionalists.
Still, imaging and cardiovascular societies have yet to endorse standardized safety procedures for interventional imagers, nor is information routinely collected on radiation exposure in national registries.
“We just don’t have the budgets or the interest nationally to do that kind of thing, so it has to be done locally,” Dr. Rao said. “And the person who I think is responsible for that is really the cath lab director and the cath lab nurse manager, who really should work hand-in-glove to make sure that radiation safety is at the top of the priority list.”
The study was funded by the Frederik Meijer Heart & Vascular Institute, Spectrum Health, and by Corindus. The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, approval of the manuscript; and the decision to submit the manuscript for publication. Senior author Ryan Madder, MD, reports receiving research support, speaker honoraria, and grants, and serving on the advisory board of Corindus. No other disclosures were reported.
A version of this article first appeared on Medscape.com.
Interventional echocardiographers have become an increasingly critical part of the structural heart team but may be paying the price in terms of radiation exposure, a new study suggests.
Results showed that interventional echocardiographers receive threefold higher head-level radiation doses than interventional cardiologists during left atrial appendage occlusion (LAAO) closures and 11-fold higher doses during mitral valve transcatheter edge-to-edge repair (TEER).
“Over the last 5-10 years there’s been exponential growth in these two procedures, TEER and LAAO, and while that’s been very exciting, I think there hasn’t been as much research into how to protect these individuals,” lead author David A. McNamara, MD, MPH, Spectrum Health, Grand Rapids, Mich., told this news organization.
The study was published in JAMA Network Open.
Previous studies have focused largely on radiation exposure and mitigation efforts during coronary interventions, but the room set-up for LAAO and TEER and shielding techniques to mitigate radiation exposure are vastly different, he noted.
A 2017 study reported that radiation exposure was significantly higher for imaging specialists than structural heart specialists and varied by procedure type.
For the current study, Dr. McNamara, an echocardiographer by training, and colleagues collected data from 30 consecutive LAAO and 30 consecutive TEER procedures performed at their institution between July 2016 and January 2018.
Interventional imagers, interventional cardiologists, and sonographers all wore a lead skirt, apron, and thyroid collar, as well as a dosimeter to collect radiation data.
Interventional cardiologists stood immediately adjacent to the procedure table and used a ceiling-mounted, upper-body lead shield and a lower-body shield extending from the table to the floor. The echocardiographer stood at the patient’s head and used a mobile accessory shield raised to a height that allowed the imager to extend their arms over the shield to manipulate a transesophageal echocardiogram probe throughout the case.
The median fluoroscopy time was 9.2 minutes for LAAO and 20.9 minutes for TEER. The median air kerma was 164 mGy and 109 mGy, respectively.
Interventional echocardiographers received a median per case radiation dose of 10.6 µSv, compared with 2.1 µSv for interventional cardiologists. The result was similar for TEER (10.5 vs. 0.9 µSv) and LAAO (10.6 vs. 3.5 µSv; P < .001 for all).
The odds of interventional echocardiographers having a radiation dose greater than 20 µSV were 7.5 times greater than for interventional cardiologists (P < .001).
“It’s not the direction of the association, but really the magnitude is what surprised us,” observed Dr. McNamara.
The team was pleasantly surprised, he said, that sonographers, a “vastly understudied group,” received significantly lower median radiation doses than interventional imagers during LAAO (0.2 µSV) and TEER procedures (0.0 µSv; P < .001 for both).
The average distances from the radiation source were 26 cm (10.2 inches) for the echocardiographer, 36 cm (14.2 inches) for the interventional cardiologist, and 250 cm (8.2 feet) for the sonographer.
“These folks [sonographers] were much further away than both the physicians performing these cases, and that is what we hypothesize drove their very low rates, but that should also help inform our mitigation techniques for physicians and for all other cath lab members in the room,” Dr. McNamara said.
He noted that Spectrum Health has been at the forefront in terms of research into radiation exposure and mitigation, has good institutional radiation safety education, and used dose-lowering fluoroscopy systems (AlluraClarity, Philips) with real-time image noise reduction technology and a frame rate of 15 frames per second for the study. “So we’re hopeful that this actually represents a somewhat best-case scenario for what is being done at multiple institutions throughout the nation.”
Nevertheless, there is a huge amount of variability in radiation exposure, Dr. McNamara observed. “First and foremost, we really just have to identify our problem and highlight that this is something that needs some advocacy from our [professional] groups.”
Sunil Rao, MD, the newly minted president of the Society of Cardiovascular Angiography and Interventions (SCAI), said, “This is a really important study, because it expands the potential occupational hazards outside of what we traditionally think of as the team that does interventional procedures ... we have to recognize that the procedures we’re doing in the cath lab have changed.”
“Showing that our colleagues are getting 3-10 times radiation exposure is a really important piece of information to have out there. I think it’s really sort of a call to action,” Dr. Rao, professor of medicine at Duke University, Durham, N.C., told this news organization.
Nevertheless, he observed that practices have shifted somewhat since the study and that interventional cardiologists working with imaging physicians are more cognizant of radiation exposure issues.
“When I talk with our folks here that are doing structural heart procedures, they’re making sure that they’re not stepping on the fluoro pedal while the echocardiographer is manipulating the TE probe,” Dr. Rao said. “The echocardiographer is oftentimes using a much bigger shield than what was described in the study, and remember there’s an exponential decrease in the radiation exposure by distance, so they’re stepping back during the fluoroscopy time.”
Although the volume of TEER and LAAO procedures, as well as tricuspid interventions, will continue to climb, Dr. Rao said he expects radiation exposure to the imaging cardiologist will fall thanks to greater use of newer-generation imaging systems with dose-reduction features and better shielding strategies.
He noted that several of SCAI’s “best practices” documents call attention to radiation safety and that SCAI is creating a pathway where imaging cardiologists can become fellows of the society, which was traditionally reserved for interventionalists.
Still, imaging and cardiovascular societies have yet to endorse standardized safety procedures for interventional imagers, nor is information routinely collected on radiation exposure in national registries.
“We just don’t have the budgets or the interest nationally to do that kind of thing, so it has to be done locally,” Dr. Rao said. “And the person who I think is responsible for that is really the cath lab director and the cath lab nurse manager, who really should work hand-in-glove to make sure that radiation safety is at the top of the priority list.”
The study was funded by the Frederik Meijer Heart & Vascular Institute, Spectrum Health, and by Corindus. The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, approval of the manuscript; and the decision to submit the manuscript for publication. Senior author Ryan Madder, MD, reports receiving research support, speaker honoraria, and grants, and serving on the advisory board of Corindus. No other disclosures were reported.
A version of this article first appeared on Medscape.com.
Interventional echocardiographers have become an increasingly critical part of the structural heart team but may be paying the price in terms of radiation exposure, a new study suggests.
Results showed that interventional echocardiographers receive threefold higher head-level radiation doses than interventional cardiologists during left atrial appendage occlusion (LAAO) closures and 11-fold higher doses during mitral valve transcatheter edge-to-edge repair (TEER).
“Over the last 5-10 years there’s been exponential growth in these two procedures, TEER and LAAO, and while that’s been very exciting, I think there hasn’t been as much research into how to protect these individuals,” lead author David A. McNamara, MD, MPH, Spectrum Health, Grand Rapids, Mich., told this news organization.
The study was published in JAMA Network Open.
Previous studies have focused largely on radiation exposure and mitigation efforts during coronary interventions, but the room set-up for LAAO and TEER and shielding techniques to mitigate radiation exposure are vastly different, he noted.
A 2017 study reported that radiation exposure was significantly higher for imaging specialists than structural heart specialists and varied by procedure type.
For the current study, Dr. McNamara, an echocardiographer by training, and colleagues collected data from 30 consecutive LAAO and 30 consecutive TEER procedures performed at their institution between July 2016 and January 2018.
Interventional imagers, interventional cardiologists, and sonographers all wore a lead skirt, apron, and thyroid collar, as well as a dosimeter to collect radiation data.
Interventional cardiologists stood immediately adjacent to the procedure table and used a ceiling-mounted, upper-body lead shield and a lower-body shield extending from the table to the floor. The echocardiographer stood at the patient’s head and used a mobile accessory shield raised to a height that allowed the imager to extend their arms over the shield to manipulate a transesophageal echocardiogram probe throughout the case.
The median fluoroscopy time was 9.2 minutes for LAAO and 20.9 minutes for TEER. The median air kerma was 164 mGy and 109 mGy, respectively.
Interventional echocardiographers received a median per case radiation dose of 10.6 µSv, compared with 2.1 µSv for interventional cardiologists. The result was similar for TEER (10.5 vs. 0.9 µSv) and LAAO (10.6 vs. 3.5 µSv; P < .001 for all).
The odds of interventional echocardiographers having a radiation dose greater than 20 µSV were 7.5 times greater than for interventional cardiologists (P < .001).
“It’s not the direction of the association, but really the magnitude is what surprised us,” observed Dr. McNamara.
The team was pleasantly surprised, he said, that sonographers, a “vastly understudied group,” received significantly lower median radiation doses than interventional imagers during LAAO (0.2 µSV) and TEER procedures (0.0 µSv; P < .001 for both).
The average distances from the radiation source were 26 cm (10.2 inches) for the echocardiographer, 36 cm (14.2 inches) for the interventional cardiologist, and 250 cm (8.2 feet) for the sonographer.
“These folks [sonographers] were much further away than both the physicians performing these cases, and that is what we hypothesize drove their very low rates, but that should also help inform our mitigation techniques for physicians and for all other cath lab members in the room,” Dr. McNamara said.
He noted that Spectrum Health has been at the forefront in terms of research into radiation exposure and mitigation, has good institutional radiation safety education, and used dose-lowering fluoroscopy systems (AlluraClarity, Philips) with real-time image noise reduction technology and a frame rate of 15 frames per second for the study. “So we’re hopeful that this actually represents a somewhat best-case scenario for what is being done at multiple institutions throughout the nation.”
Nevertheless, there is a huge amount of variability in radiation exposure, Dr. McNamara observed. “First and foremost, we really just have to identify our problem and highlight that this is something that needs some advocacy from our [professional] groups.”
Sunil Rao, MD, the newly minted president of the Society of Cardiovascular Angiography and Interventions (SCAI), said, “This is a really important study, because it expands the potential occupational hazards outside of what we traditionally think of as the team that does interventional procedures ... we have to recognize that the procedures we’re doing in the cath lab have changed.”
“Showing that our colleagues are getting 3-10 times radiation exposure is a really important piece of information to have out there. I think it’s really sort of a call to action,” Dr. Rao, professor of medicine at Duke University, Durham, N.C., told this news organization.
Nevertheless, he observed that practices have shifted somewhat since the study and that interventional cardiologists working with imaging physicians are more cognizant of radiation exposure issues.
“When I talk with our folks here that are doing structural heart procedures, they’re making sure that they’re not stepping on the fluoro pedal while the echocardiographer is manipulating the TE probe,” Dr. Rao said. “The echocardiographer is oftentimes using a much bigger shield than what was described in the study, and remember there’s an exponential decrease in the radiation exposure by distance, so they’re stepping back during the fluoroscopy time.”
Although the volume of TEER and LAAO procedures, as well as tricuspid interventions, will continue to climb, Dr. Rao said he expects radiation exposure to the imaging cardiologist will fall thanks to greater use of newer-generation imaging systems with dose-reduction features and better shielding strategies.
He noted that several of SCAI’s “best practices” documents call attention to radiation safety and that SCAI is creating a pathway where imaging cardiologists can become fellows of the society, which was traditionally reserved for interventionalists.
Still, imaging and cardiovascular societies have yet to endorse standardized safety procedures for interventional imagers, nor is information routinely collected on radiation exposure in national registries.
“We just don’t have the budgets or the interest nationally to do that kind of thing, so it has to be done locally,” Dr. Rao said. “And the person who I think is responsible for that is really the cath lab director and the cath lab nurse manager, who really should work hand-in-glove to make sure that radiation safety is at the top of the priority list.”
The study was funded by the Frederik Meijer Heart & Vascular Institute, Spectrum Health, and by Corindus. The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, approval of the manuscript; and the decision to submit the manuscript for publication. Senior author Ryan Madder, MD, reports receiving research support, speaker honoraria, and grants, and serving on the advisory board of Corindus. No other disclosures were reported.
A version of this article first appeared on Medscape.com.
Access to certified stroke centers divided by race, income
Hospitals in low-income and rural areas of the United States are much less likely to adopt stroke certification than hospitals in high-income and urban communities, a new study shows.
Further, other results showed that, after adjustment for population and hospital size, access to stroke-certified hospitals is significantly lower in Black, racially segregated communities.
The study was published online in JAMA Neurology.
Noting that stroke-certified hospitals provide higher-quality stroke care, the authors, led by Yu-Chu Shen, PhD, Naval Postgraduate School, Monterey, Calif., conclude that: “Our findings suggest that structural inequities in stroke care may be an important consideration in eliminating stroke disparities for vulnerable populations.”
In an audio interview on the JAMA Neurology website, senior author Renee Y. Hsia, MD, University of California, San Francisco, said: “Our findings show there are clear disparities in which communities are getting access to stroke certified hospitals.”
She called for more help for hospitals in underserved areas to obtain stroke certification.
Dr. Hsia explained that hospitals can seek certification at their own expense and that although stroke care is expensive, it is also lucrative in terms of reimbursement. So it tends to be the private for-profit hospitals that seek these certifications. “If you are a county hospital on a really tight budget, you’re not going to have the extra cash on hand to be applying for stroke certification,” she commented.
This can result in an increase in hospitals with stroke certification – but not in the areas that need it the most.
Dr. Hsia points out that this has happened in cardiac care. One study showed a 44% increase in hospitals providing percutaneous coronary intervention over a 10-year period, but the percentage of the population that had better access increased by less than 1%.
“In general, in the United States we have a mentality that ‘more is better,’ and because there is no government regulation in health care, any time a hospital applies for these specialized services we just generally think that’s a good thing. But this might not always be the case,” Dr. Hsia noted. “We have a very market-based approach, and this doesn’t lead to equity. It leads to profit maximization, and that is not synonymous with what’s good for patients or populations.”
She suggested that in future the process of certification should include some consideration of how it will affect population-based equity.
“Rather than rubber stamping an application just because hospitals have certain resources, we need to ask what the benefit is of providing this service,” Dr. Hsia said. “Does this community really need it? If not, maybe we should invest these resources into helping a hospital in a community that needs it more.”
Dr. Hsia explained that she and her colleagues conducted their study to investigate whether there were structural issues that might be contributing to disparities in stroke care.
“We like to think emergency stroke care is equitable. Anyone can call 911 or go the emergency room. But, actually, there is a big disparity on who receives what type of care,” she said. “We know Black patients are less likely to receive thrombolytics and mechanical thrombectomy compared to White patents. And wealthy patients are more likely to receive thrombectomy compared to patients from the poorest zip codes.”
She said there is a tendency to think this is a result of some sort of bias on the part of health care professionals. “We wanted to look deep down in the system and whether the built environment of health care supply and geographic distribution of services contributed to access and treatment inequities.”
The study combined a dataset of hospital stroke certification from all general acute nonfederal hospitals in the continental United States from January 2009 to December 2019. National, hospital, and census data were used to identify historically underserved communities by racial and ethnic composition, income distribution, and rurality.
A total of 4,984 hospitals were assessed. Results showed that over the 11-year study period, the number of hospitals with stroke certification grew from 961 (19%) to 1,763 (36%).
Without controlling for population and hospital size, hospitals in predominantly Black, racially segregated areas were 1.67-fold more likely to adopt stroke care of any level than those in predominantly non-Black, racially segregated areas (hazard ratio, 1.67; 95% confidence interval, 1.41-1.97).
However, after adjustment for population and hospital size, the likelihood of adopting stroke care among hospitals serving Black, racially segregated communities was significantly lower than among those serving non-Black, racially segregated communities (HR, 0.74; 95% CI, 0.62-0.89).
“In other words, on a per-capita basis, a hospital serving a predominantly Black, racially segregated community was 26% less likely to adopt stroke certification of any level than a hospital in a predominantly non-Black, racially segregated community,” the authors state.
In terms of socioeconomic factors, hospitals serving low-income, economically integrated (HR, 0.23) and low-income, economically segregated (HR, 0.29) areas were far less likely to adopt any level of stroke care certification than hospitals serving high-income areas, regardless of income segregation.
Rural hospitals were also much less likely to adopt any level of stroke care than urban hospitals (HR, 0.10).
“Our results suggest that it might be necessary to incentivize hospitals operating in underserved communities to seek stroke certification or to entice hospitals with higher propensity to adopt stroke care to operate in such communities so access at the per-patient level becomes more equitable,” the authors say.
This project was supported by the Pilot Project Award from the National Bureau of Economic Research Center for Aging and Health Research, funded by the National Institute on Aging and by the National Center for Advancing Translational Sciences, National Institutes of Health. Dr. Shen and Dr. Hsia have received grants from the National Institute of Aging and the National Heart, Lung, and Blood Institute.
A version of this article first appeared on Medscape.com.
Hospitals in low-income and rural areas of the United States are much less likely to adopt stroke certification than hospitals in high-income and urban communities, a new study shows.
Further, other results showed that, after adjustment for population and hospital size, access to stroke-certified hospitals is significantly lower in Black, racially segregated communities.
The study was published online in JAMA Neurology.
Noting that stroke-certified hospitals provide higher-quality stroke care, the authors, led by Yu-Chu Shen, PhD, Naval Postgraduate School, Monterey, Calif., conclude that: “Our findings suggest that structural inequities in stroke care may be an important consideration in eliminating stroke disparities for vulnerable populations.”
In an audio interview on the JAMA Neurology website, senior author Renee Y. Hsia, MD, University of California, San Francisco, said: “Our findings show there are clear disparities in which communities are getting access to stroke certified hospitals.”
She called for more help for hospitals in underserved areas to obtain stroke certification.
Dr. Hsia explained that hospitals can seek certification at their own expense and that although stroke care is expensive, it is also lucrative in terms of reimbursement. So it tends to be the private for-profit hospitals that seek these certifications. “If you are a county hospital on a really tight budget, you’re not going to have the extra cash on hand to be applying for stroke certification,” she commented.
This can result in an increase in hospitals with stroke certification – but not in the areas that need it the most.
Dr. Hsia points out that this has happened in cardiac care. One study showed a 44% increase in hospitals providing percutaneous coronary intervention over a 10-year period, but the percentage of the population that had better access increased by less than 1%.
“In general, in the United States we have a mentality that ‘more is better,’ and because there is no government regulation in health care, any time a hospital applies for these specialized services we just generally think that’s a good thing. But this might not always be the case,” Dr. Hsia noted. “We have a very market-based approach, and this doesn’t lead to equity. It leads to profit maximization, and that is not synonymous with what’s good for patients or populations.”
She suggested that in future the process of certification should include some consideration of how it will affect population-based equity.
“Rather than rubber stamping an application just because hospitals have certain resources, we need to ask what the benefit is of providing this service,” Dr. Hsia said. “Does this community really need it? If not, maybe we should invest these resources into helping a hospital in a community that needs it more.”
Dr. Hsia explained that she and her colleagues conducted their study to investigate whether there were structural issues that might be contributing to disparities in stroke care.
“We like to think emergency stroke care is equitable. Anyone can call 911 or go the emergency room. But, actually, there is a big disparity on who receives what type of care,” she said. “We know Black patients are less likely to receive thrombolytics and mechanical thrombectomy compared to White patents. And wealthy patients are more likely to receive thrombectomy compared to patients from the poorest zip codes.”
She said there is a tendency to think this is a result of some sort of bias on the part of health care professionals. “We wanted to look deep down in the system and whether the built environment of health care supply and geographic distribution of services contributed to access and treatment inequities.”
The study combined a dataset of hospital stroke certification from all general acute nonfederal hospitals in the continental United States from January 2009 to December 2019. National, hospital, and census data were used to identify historically underserved communities by racial and ethnic composition, income distribution, and rurality.
A total of 4,984 hospitals were assessed. Results showed that over the 11-year study period, the number of hospitals with stroke certification grew from 961 (19%) to 1,763 (36%).
Without controlling for population and hospital size, hospitals in predominantly Black, racially segregated areas were 1.67-fold more likely to adopt stroke care of any level than those in predominantly non-Black, racially segregated areas (hazard ratio, 1.67; 95% confidence interval, 1.41-1.97).
However, after adjustment for population and hospital size, the likelihood of adopting stroke care among hospitals serving Black, racially segregated communities was significantly lower than among those serving non-Black, racially segregated communities (HR, 0.74; 95% CI, 0.62-0.89).
“In other words, on a per-capita basis, a hospital serving a predominantly Black, racially segregated community was 26% less likely to adopt stroke certification of any level than a hospital in a predominantly non-Black, racially segregated community,” the authors state.
In terms of socioeconomic factors, hospitals serving low-income, economically integrated (HR, 0.23) and low-income, economically segregated (HR, 0.29) areas were far less likely to adopt any level of stroke care certification than hospitals serving high-income areas, regardless of income segregation.
Rural hospitals were also much less likely to adopt any level of stroke care than urban hospitals (HR, 0.10).
“Our results suggest that it might be necessary to incentivize hospitals operating in underserved communities to seek stroke certification or to entice hospitals with higher propensity to adopt stroke care to operate in such communities so access at the per-patient level becomes more equitable,” the authors say.
This project was supported by the Pilot Project Award from the National Bureau of Economic Research Center for Aging and Health Research, funded by the National Institute on Aging and by the National Center for Advancing Translational Sciences, National Institutes of Health. Dr. Shen and Dr. Hsia have received grants from the National Institute of Aging and the National Heart, Lung, and Blood Institute.
A version of this article first appeared on Medscape.com.
Hospitals in low-income and rural areas of the United States are much less likely to adopt stroke certification than hospitals in high-income and urban communities, a new study shows.
Further, other results showed that, after adjustment for population and hospital size, access to stroke-certified hospitals is significantly lower in Black, racially segregated communities.
The study was published online in JAMA Neurology.
Noting that stroke-certified hospitals provide higher-quality stroke care, the authors, led by Yu-Chu Shen, PhD, Naval Postgraduate School, Monterey, Calif., conclude that: “Our findings suggest that structural inequities in stroke care may be an important consideration in eliminating stroke disparities for vulnerable populations.”
In an audio interview on the JAMA Neurology website, senior author Renee Y. Hsia, MD, University of California, San Francisco, said: “Our findings show there are clear disparities in which communities are getting access to stroke certified hospitals.”
She called for more help for hospitals in underserved areas to obtain stroke certification.
Dr. Hsia explained that hospitals can seek certification at their own expense and that although stroke care is expensive, it is also lucrative in terms of reimbursement. So it tends to be the private for-profit hospitals that seek these certifications. “If you are a county hospital on a really tight budget, you’re not going to have the extra cash on hand to be applying for stroke certification,” she commented.
This can result in an increase in hospitals with stroke certification – but not in the areas that need it the most.
Dr. Hsia points out that this has happened in cardiac care. One study showed a 44% increase in hospitals providing percutaneous coronary intervention over a 10-year period, but the percentage of the population that had better access increased by less than 1%.
“In general, in the United States we have a mentality that ‘more is better,’ and because there is no government regulation in health care, any time a hospital applies for these specialized services we just generally think that’s a good thing. But this might not always be the case,” Dr. Hsia noted. “We have a very market-based approach, and this doesn’t lead to equity. It leads to profit maximization, and that is not synonymous with what’s good for patients or populations.”
She suggested that in future the process of certification should include some consideration of how it will affect population-based equity.
“Rather than rubber stamping an application just because hospitals have certain resources, we need to ask what the benefit is of providing this service,” Dr. Hsia said. “Does this community really need it? If not, maybe we should invest these resources into helping a hospital in a community that needs it more.”
Dr. Hsia explained that she and her colleagues conducted their study to investigate whether there were structural issues that might be contributing to disparities in stroke care.
“We like to think emergency stroke care is equitable. Anyone can call 911 or go the emergency room. But, actually, there is a big disparity on who receives what type of care,” she said. “We know Black patients are less likely to receive thrombolytics and mechanical thrombectomy compared to White patents. And wealthy patients are more likely to receive thrombectomy compared to patients from the poorest zip codes.”
She said there is a tendency to think this is a result of some sort of bias on the part of health care professionals. “We wanted to look deep down in the system and whether the built environment of health care supply and geographic distribution of services contributed to access and treatment inequities.”
The study combined a dataset of hospital stroke certification from all general acute nonfederal hospitals in the continental United States from January 2009 to December 2019. National, hospital, and census data were used to identify historically underserved communities by racial and ethnic composition, income distribution, and rurality.
A total of 4,984 hospitals were assessed. Results showed that over the 11-year study period, the number of hospitals with stroke certification grew from 961 (19%) to 1,763 (36%).
Without controlling for population and hospital size, hospitals in predominantly Black, racially segregated areas were 1.67-fold more likely to adopt stroke care of any level than those in predominantly non-Black, racially segregated areas (hazard ratio, 1.67; 95% confidence interval, 1.41-1.97).
However, after adjustment for population and hospital size, the likelihood of adopting stroke care among hospitals serving Black, racially segregated communities was significantly lower than among those serving non-Black, racially segregated communities (HR, 0.74; 95% CI, 0.62-0.89).
“In other words, on a per-capita basis, a hospital serving a predominantly Black, racially segregated community was 26% less likely to adopt stroke certification of any level than a hospital in a predominantly non-Black, racially segregated community,” the authors state.
In terms of socioeconomic factors, hospitals serving low-income, economically integrated (HR, 0.23) and low-income, economically segregated (HR, 0.29) areas were far less likely to adopt any level of stroke care certification than hospitals serving high-income areas, regardless of income segregation.
Rural hospitals were also much less likely to adopt any level of stroke care than urban hospitals (HR, 0.10).
“Our results suggest that it might be necessary to incentivize hospitals operating in underserved communities to seek stroke certification or to entice hospitals with higher propensity to adopt stroke care to operate in such communities so access at the per-patient level becomes more equitable,” the authors say.
This project was supported by the Pilot Project Award from the National Bureau of Economic Research Center for Aging and Health Research, funded by the National Institute on Aging and by the National Center for Advancing Translational Sciences, National Institutes of Health. Dr. Shen and Dr. Hsia have received grants from the National Institute of Aging and the National Heart, Lung, and Blood Institute.
A version of this article first appeared on Medscape.com.
Cardiologists concerned for patient safety after abortion ruling
Pregnancy termination for medical reasons had been part of the fabric of everyday health care in the United States since the Supreme Court’s 1973 Roe v. Wade decision, which the current high court overturned in a ruling announced on June 24.
That means many clinicians across specialties are entering uncharted territory with the country’s new patchwork of abortion legality. Some specialties, cardiology among them, may feel the impact more than others.
“We know that the rising maternal mortality rate is predominantly driven by cardiovascular disease, women having children at older ages, and ... risk factors like hypertension, diabetes, and obesity,” Jennifer H. Haythe, MD, told this news organization.
So the high court’s decision in Dobbs v. Jackson Women’s Health Organization, which overturned Roe v. Wade and leaves the legality of abortion up to the 50 separate state legislatures, “is very relevant to cardiologists specifically,” said Dr. Haythe, who is director of cardiology in the cardio-obstetrics program at New York-Presbyterian/Columbia University Irving Medical Center, New York.
The ruling “is going to have a huge effect on women who may not be able to tolerate pregnancy,” she said. Whether to terminate a pregnancy “is a relatively common discussion I have with women with bad heart failure about their risk of further decompensation, death, or needing a heart transplant or heart pump after delivery, or the risk of death in women with pulmonary hypertension.”
The high court’s decision “is a direct attack on the practice of medicine and really the sanctity of the patient-clinician relationship,” Rachel M. Bond, MD, director of Women’s Heart Health Systems Dignity Health of Arizona, told this news organization.
Physicians take an oath “that we should do no harm to our patients, and once the law or governance impacts that, it places us in a very vulnerable situation,” Dr. Bond said. “As a cardiologist who focuses a lot on high-risk pregnancies, I am worried and hesitant to give guidance to many of these patients in the states that may not have access to something that is a medical right, which at times is an abortion.”
She has colleagues in obstetrics in states where abortion is newly illegal who “don’t know what to do,” Dr. Bond said. Many have sought guidance from their legal teams, she said, “and many of them are now trying to figure out what is the best path.”
Pregnancy is “a very significant cardiovascular stress test, and women who may tolerate certain conditions reasonably well outside of the setting of pregnancy may have severe issues, not just for the mother, but for the baby as well,” Ki Park, MD, University of Florida Health, Gainesville, said in an interview.
“As clinicians, none of us like recommending a medically indicated abortion. But it is health care, just like any other medication or treatment that we advise to our patients in cases where the risk of the mother is excessively high and mortality risk is elevated,” said Dr. Park, who is cochair of the American College of Cardiology Cardio-Obstetrics Work Group.
Some conditions, such as pulmonary hypertension and severe aortic valve stenosis, during pregnancy are well recognized as very high risk, and there are various scoring systems to help clinicians with risk stratification, she observed. “But there are also a lot of gray areas where patients don’t necessarily fit into these risk scores that we use.”
So physician-patient discussions in high-risk pregnancies “are already complicated,” Dr. Park said. “Patients want to have options, and they look to us as physicians for guidance with regard to their risks. And if abortion is not available as an option, then part of our toolbox is no longer available to help us care for the mother.”
In the new legal climate, clinicians in states where abortion is illegal may well want to put more emphasis on preconception counseling, so more of their patients with high-risk conditions are aware of the new barriers to pregnancy termination.
“Unfortunately,” Dr. Haythe said, “many of the states that are going to make or have made abortion illegal are not providing that kind of preconception counseling or good prenatal care to women.”
Cardiologists can provide such counseling to their female patients of childbearing age who have high-risk cardiac conditions, “but not everybody knows that they have a heart problem when they get pregnant, and not everybody is getting screened for heart problems when they’re of childbearing age,” Dr. Haythe said.
“Sometimes it’s not clear whether the problems could have been picked up until a woman is pregnant and has started to have symptoms.” For example, “a lot of women with poor access to health care have rheumatic heart disease. They may have no idea that they have severe aortic stenosis, and it’s not until their second trimester that they start to feel really short of breath.” Often that can be treated in the cath lab, “but again, that’s putting the woman and the baby at risk.”
Cardiologists in states where abortion is illegal will still present the option to their patients with high-risk pregnancies, noted Dr. Haythe. But the conversation may sound something like, “you are at very high risk, termination of the pregnancy takes that risk away, but you’ll have to find a state where it’s legal to do that.”
Dr. Park said such a situation, when abortion is recommended but locally unavailable, is much like any other in cardiology for which the patient may want a second opinion. If a center “doesn’t have the capability or the technology to offer a certain treatment, the patient can opt to seek another opinion at another center,” she said. “Patients will often travel out of state to get the care they need.”
A requirement for out-of-state travel to obtain abortions is likely to worsen socioeconomic disparities in health care, Dr. Bond observed, “because we know that those who are low-income won’t be able to afford that travel.”
Dr. Bond is cosignatory on a statement from the Association of Black Cardiologists (ABC) responding to the high court’s ruling in Dobbs v. Jackson. “This decision will isolate the poor, socioeconomically disadvantaged, and minority populations specifically, widening the already large gaps in health care for our most vulnerable communities,” it states.
“The loss of broad protections supporting the medical and often lifesaving procedure of abortions is likely to have a real impact on the maternal mortality rate, especially in those with congenital and/or acquired cardiovascular conditions where evidence-based guidelines advise at times on termination of such high-risk pregnancies.”
The ABC, it states, “believes that every woman, and every person, should be afforded the right to safe, accessible, legal, timely, patient-centered, equitable, and affordable health care.”
The American College of Cardiology (ACC) released a statement on the matter June 24, signed by its president, Edward T.A. Fry, MD, along with five former ACC presidents. “While the ACC has no official policy on abortion, clinical practice guidelines and other clinical guidance tools address the dangers of pregnancy in certain patient populations at higher risk of death or serious cardiac events.”
The college, it states, is “deeply concerned about the potential implications of the Supreme Court decision regarding Roe vs. Wade on the ability of patients and clinicians to engage in important shared discussions about maternal health, or to remove previously available health care options.”
Dr. Bond proposed that a “vocal stance” from medical societies involved in women’s health, “perhaps even a collective stance from our cardiovascular societies and our obstetrics societies,” would also perhaps reach “the masses of doctors in private practice who are dealing with these patients.”
A version of this article first appeared on Medscape.com.
Pregnancy termination for medical reasons had been part of the fabric of everyday health care in the United States since the Supreme Court’s 1973 Roe v. Wade decision, which the current high court overturned in a ruling announced on June 24.
That means many clinicians across specialties are entering uncharted territory with the country’s new patchwork of abortion legality. Some specialties, cardiology among them, may feel the impact more than others.
“We know that the rising maternal mortality rate is predominantly driven by cardiovascular disease, women having children at older ages, and ... risk factors like hypertension, diabetes, and obesity,” Jennifer H. Haythe, MD, told this news organization.
So the high court’s decision in Dobbs v. Jackson Women’s Health Organization, which overturned Roe v. Wade and leaves the legality of abortion up to the 50 separate state legislatures, “is very relevant to cardiologists specifically,” said Dr. Haythe, who is director of cardiology in the cardio-obstetrics program at New York-Presbyterian/Columbia University Irving Medical Center, New York.
The ruling “is going to have a huge effect on women who may not be able to tolerate pregnancy,” she said. Whether to terminate a pregnancy “is a relatively common discussion I have with women with bad heart failure about their risk of further decompensation, death, or needing a heart transplant or heart pump after delivery, or the risk of death in women with pulmonary hypertension.”
The high court’s decision “is a direct attack on the practice of medicine and really the sanctity of the patient-clinician relationship,” Rachel M. Bond, MD, director of Women’s Heart Health Systems Dignity Health of Arizona, told this news organization.
Physicians take an oath “that we should do no harm to our patients, and once the law or governance impacts that, it places us in a very vulnerable situation,” Dr. Bond said. “As a cardiologist who focuses a lot on high-risk pregnancies, I am worried and hesitant to give guidance to many of these patients in the states that may not have access to something that is a medical right, which at times is an abortion.”
She has colleagues in obstetrics in states where abortion is newly illegal who “don’t know what to do,” Dr. Bond said. Many have sought guidance from their legal teams, she said, “and many of them are now trying to figure out what is the best path.”
Pregnancy is “a very significant cardiovascular stress test, and women who may tolerate certain conditions reasonably well outside of the setting of pregnancy may have severe issues, not just for the mother, but for the baby as well,” Ki Park, MD, University of Florida Health, Gainesville, said in an interview.
“As clinicians, none of us like recommending a medically indicated abortion. But it is health care, just like any other medication or treatment that we advise to our patients in cases where the risk of the mother is excessively high and mortality risk is elevated,” said Dr. Park, who is cochair of the American College of Cardiology Cardio-Obstetrics Work Group.
Some conditions, such as pulmonary hypertension and severe aortic valve stenosis, during pregnancy are well recognized as very high risk, and there are various scoring systems to help clinicians with risk stratification, she observed. “But there are also a lot of gray areas where patients don’t necessarily fit into these risk scores that we use.”
So physician-patient discussions in high-risk pregnancies “are already complicated,” Dr. Park said. “Patients want to have options, and they look to us as physicians for guidance with regard to their risks. And if abortion is not available as an option, then part of our toolbox is no longer available to help us care for the mother.”
In the new legal climate, clinicians in states where abortion is illegal may well want to put more emphasis on preconception counseling, so more of their patients with high-risk conditions are aware of the new barriers to pregnancy termination.
“Unfortunately,” Dr. Haythe said, “many of the states that are going to make or have made abortion illegal are not providing that kind of preconception counseling or good prenatal care to women.”
Cardiologists can provide such counseling to their female patients of childbearing age who have high-risk cardiac conditions, “but not everybody knows that they have a heart problem when they get pregnant, and not everybody is getting screened for heart problems when they’re of childbearing age,” Dr. Haythe said.
“Sometimes it’s not clear whether the problems could have been picked up until a woman is pregnant and has started to have symptoms.” For example, “a lot of women with poor access to health care have rheumatic heart disease. They may have no idea that they have severe aortic stenosis, and it’s not until their second trimester that they start to feel really short of breath.” Often that can be treated in the cath lab, “but again, that’s putting the woman and the baby at risk.”
Cardiologists in states where abortion is illegal will still present the option to their patients with high-risk pregnancies, noted Dr. Haythe. But the conversation may sound something like, “you are at very high risk, termination of the pregnancy takes that risk away, but you’ll have to find a state where it’s legal to do that.”
Dr. Park said such a situation, when abortion is recommended but locally unavailable, is much like any other in cardiology for which the patient may want a second opinion. If a center “doesn’t have the capability or the technology to offer a certain treatment, the patient can opt to seek another opinion at another center,” she said. “Patients will often travel out of state to get the care they need.”
A requirement for out-of-state travel to obtain abortions is likely to worsen socioeconomic disparities in health care, Dr. Bond observed, “because we know that those who are low-income won’t be able to afford that travel.”
Dr. Bond is cosignatory on a statement from the Association of Black Cardiologists (ABC) responding to the high court’s ruling in Dobbs v. Jackson. “This decision will isolate the poor, socioeconomically disadvantaged, and minority populations specifically, widening the already large gaps in health care for our most vulnerable communities,” it states.
“The loss of broad protections supporting the medical and often lifesaving procedure of abortions is likely to have a real impact on the maternal mortality rate, especially in those with congenital and/or acquired cardiovascular conditions where evidence-based guidelines advise at times on termination of such high-risk pregnancies.”
The ABC, it states, “believes that every woman, and every person, should be afforded the right to safe, accessible, legal, timely, patient-centered, equitable, and affordable health care.”
The American College of Cardiology (ACC) released a statement on the matter June 24, signed by its president, Edward T.A. Fry, MD, along with five former ACC presidents. “While the ACC has no official policy on abortion, clinical practice guidelines and other clinical guidance tools address the dangers of pregnancy in certain patient populations at higher risk of death or serious cardiac events.”
The college, it states, is “deeply concerned about the potential implications of the Supreme Court decision regarding Roe vs. Wade on the ability of patients and clinicians to engage in important shared discussions about maternal health, or to remove previously available health care options.”
Dr. Bond proposed that a “vocal stance” from medical societies involved in women’s health, “perhaps even a collective stance from our cardiovascular societies and our obstetrics societies,” would also perhaps reach “the masses of doctors in private practice who are dealing with these patients.”
A version of this article first appeared on Medscape.com.
Pregnancy termination for medical reasons had been part of the fabric of everyday health care in the United States since the Supreme Court’s 1973 Roe v. Wade decision, which the current high court overturned in a ruling announced on June 24.
That means many clinicians across specialties are entering uncharted territory with the country’s new patchwork of abortion legality. Some specialties, cardiology among them, may feel the impact more than others.
“We know that the rising maternal mortality rate is predominantly driven by cardiovascular disease, women having children at older ages, and ... risk factors like hypertension, diabetes, and obesity,” Jennifer H. Haythe, MD, told this news organization.
So the high court’s decision in Dobbs v. Jackson Women’s Health Organization, which overturned Roe v. Wade and leaves the legality of abortion up to the 50 separate state legislatures, “is very relevant to cardiologists specifically,” said Dr. Haythe, who is director of cardiology in the cardio-obstetrics program at New York-Presbyterian/Columbia University Irving Medical Center, New York.
The ruling “is going to have a huge effect on women who may not be able to tolerate pregnancy,” she said. Whether to terminate a pregnancy “is a relatively common discussion I have with women with bad heart failure about their risk of further decompensation, death, or needing a heart transplant or heart pump after delivery, or the risk of death in women with pulmonary hypertension.”
The high court’s decision “is a direct attack on the practice of medicine and really the sanctity of the patient-clinician relationship,” Rachel M. Bond, MD, director of Women’s Heart Health Systems Dignity Health of Arizona, told this news organization.
Physicians take an oath “that we should do no harm to our patients, and once the law or governance impacts that, it places us in a very vulnerable situation,” Dr. Bond said. “As a cardiologist who focuses a lot on high-risk pregnancies, I am worried and hesitant to give guidance to many of these patients in the states that may not have access to something that is a medical right, which at times is an abortion.”
She has colleagues in obstetrics in states where abortion is newly illegal who “don’t know what to do,” Dr. Bond said. Many have sought guidance from their legal teams, she said, “and many of them are now trying to figure out what is the best path.”
Pregnancy is “a very significant cardiovascular stress test, and women who may tolerate certain conditions reasonably well outside of the setting of pregnancy may have severe issues, not just for the mother, but for the baby as well,” Ki Park, MD, University of Florida Health, Gainesville, said in an interview.
“As clinicians, none of us like recommending a medically indicated abortion. But it is health care, just like any other medication or treatment that we advise to our patients in cases where the risk of the mother is excessively high and mortality risk is elevated,” said Dr. Park, who is cochair of the American College of Cardiology Cardio-Obstetrics Work Group.
Some conditions, such as pulmonary hypertension and severe aortic valve stenosis, during pregnancy are well recognized as very high risk, and there are various scoring systems to help clinicians with risk stratification, she observed. “But there are also a lot of gray areas where patients don’t necessarily fit into these risk scores that we use.”
So physician-patient discussions in high-risk pregnancies “are already complicated,” Dr. Park said. “Patients want to have options, and they look to us as physicians for guidance with regard to their risks. And if abortion is not available as an option, then part of our toolbox is no longer available to help us care for the mother.”
In the new legal climate, clinicians in states where abortion is illegal may well want to put more emphasis on preconception counseling, so more of their patients with high-risk conditions are aware of the new barriers to pregnancy termination.
“Unfortunately,” Dr. Haythe said, “many of the states that are going to make or have made abortion illegal are not providing that kind of preconception counseling or good prenatal care to women.”
Cardiologists can provide such counseling to their female patients of childbearing age who have high-risk cardiac conditions, “but not everybody knows that they have a heart problem when they get pregnant, and not everybody is getting screened for heart problems when they’re of childbearing age,” Dr. Haythe said.
“Sometimes it’s not clear whether the problems could have been picked up until a woman is pregnant and has started to have symptoms.” For example, “a lot of women with poor access to health care have rheumatic heart disease. They may have no idea that they have severe aortic stenosis, and it’s not until their second trimester that they start to feel really short of breath.” Often that can be treated in the cath lab, “but again, that’s putting the woman and the baby at risk.”
Cardiologists in states where abortion is illegal will still present the option to their patients with high-risk pregnancies, noted Dr. Haythe. But the conversation may sound something like, “you are at very high risk, termination of the pregnancy takes that risk away, but you’ll have to find a state where it’s legal to do that.”
Dr. Park said such a situation, when abortion is recommended but locally unavailable, is much like any other in cardiology for which the patient may want a second opinion. If a center “doesn’t have the capability or the technology to offer a certain treatment, the patient can opt to seek another opinion at another center,” she said. “Patients will often travel out of state to get the care they need.”
A requirement for out-of-state travel to obtain abortions is likely to worsen socioeconomic disparities in health care, Dr. Bond observed, “because we know that those who are low-income won’t be able to afford that travel.”
Dr. Bond is cosignatory on a statement from the Association of Black Cardiologists (ABC) responding to the high court’s ruling in Dobbs v. Jackson. “This decision will isolate the poor, socioeconomically disadvantaged, and minority populations specifically, widening the already large gaps in health care for our most vulnerable communities,” it states.
“The loss of broad protections supporting the medical and often lifesaving procedure of abortions is likely to have a real impact on the maternal mortality rate, especially in those with congenital and/or acquired cardiovascular conditions where evidence-based guidelines advise at times on termination of such high-risk pregnancies.”
The ABC, it states, “believes that every woman, and every person, should be afforded the right to safe, accessible, legal, timely, patient-centered, equitable, and affordable health care.”
The American College of Cardiology (ACC) released a statement on the matter June 24, signed by its president, Edward T.A. Fry, MD, along with five former ACC presidents. “While the ACC has no official policy on abortion, clinical practice guidelines and other clinical guidance tools address the dangers of pregnancy in certain patient populations at higher risk of death or serious cardiac events.”
The college, it states, is “deeply concerned about the potential implications of the Supreme Court decision regarding Roe vs. Wade on the ability of patients and clinicians to engage in important shared discussions about maternal health, or to remove previously available health care options.”
Dr. Bond proposed that a “vocal stance” from medical societies involved in women’s health, “perhaps even a collective stance from our cardiovascular societies and our obstetrics societies,” would also perhaps reach “the masses of doctors in private practice who are dealing with these patients.”
A version of this article first appeared on Medscape.com.
Add AFib to noncardiac surgery risk evaluation: New support
Practice has gone back and forth on whether atrial fibrillation (AFib) should be considered in the preoperative cardiovascular risk (CV) evaluation of patients slated for noncardiac surgery, and the Revised Cardiac Risk Index (RCRI), currently widely used as an assessment tool, doesn’t include the arrhythmia.
But consideration of preexisting AFib along with the RCRI predicted 30-day mortality more sharply than the RCRI alone in an analysis of data covering several million patients slated for such procedures.
Indeed, AFib emerged as a significant, independent risk factor for a number of bad postoperative outcomes. Mortality within a month of the procedure climbed about 30% for patients with AFib before the noncardiac surgery. Their 30-day risks for stroke and for heart failure hospitalization went up similarly.
The addition of AFib to the RCRI significantly improved its ability to discriminate 30-day postoperative risk levels regardless of age, sex, and type of noncardiac surgery, Amgad Mentias, MD, Cleveland Clinic, told this news organization. And “it was able to correctly up-classify patients to high risk, if AFib was there, and it was able to down-classify some patients to lower risk if it wasn’t there.”
“I think [the findings] are convincing evidence that atrial fib should at least be part of the thought process for the surgical team and the medical team taking care of the patient,” said Dr. Mentias, who is senior author on the study published in the Journal of the American College of Cardiology, with lead author Sameer Prasada, MD, also of the Cleveland Clinic.
The results “call for incorporating AFib as a risk factor in perioperative risk scores for cardiovascular morbidity and mortality,” the published report states.
Supraventricular arrhythmias had been part of the Goldman Risk Index once widely used preoperatively to assess cardiac risk before practice adopted the RCRI in the past decade, observe Anne B. Curtis, MD, and Sai Krishna C. Korada, MD, University at Buffalo, New York, in an accompanying editorial.
The current findings “demonstrate improved prediction of adverse postsurgical outcomes” from supplementing the RCRI with AFib, they write. Given associations between preexisting AFib and serious cardiac events, “it is time to ‘re-revise’ the RCRI and acknowledge the importance of AFib in predicting adverse outcomes” after noncardiac surgery.
The new findings, however, aren’t all straightforward. In one result that remains a bit of a head-scratcher, postoperative risk of myocardial infarction (MI) in patients with preexisting AFib went in the opposite direction of risk for death and other CV outcomes, falling by almost 20%.
That is “hard to explain with the available data,” the report states, but “the use of anticoagulation, whether oral or parenteral (as a bridge therapy in the perioperative period), is a plausible explanation” given the frequent role of thrombosis in triggering MIs.
Consistent with such a mechanism, the group argues, the MI risk reduction was seen primarily among patients with AFib and a CHA2DS2-VASc score of 2 or higher – that is, those at highest risk for stroke and therefore most likely to be on oral anticoagulation. The MI risk reduction wasn’t seen in such patients with a CHA2DS2-VASc score of 0 or 1.
“I think that’s part of the explanation, that anticoagulation can reduce risk of MI. But it’s not the whole explanation,” Dr. Mentias said in an interview. If it were the sole mechanism, he said, then the same oral anticoagulation that protected against MI should have also cut the postoperative stroke risk. Yet that risk climbed 40% among patients with preexisting AFib.
The analysis started with 8.6 million Medicare patients with planned noncardiac surgery, seen from 2015 to 2019, of whom 16.4% had preexisting AFib. Propensity matching for demographics, urgency and type of surgery, CHA2DS2-VASc score, and RCRI index created two cohorts for comparison: 1.13 million patients with and 1.92 million without preexisting AFib.
Preexisting AFib was associated with a higher 30-day risk for death from any cause, the primary endpoint being 8.3% versus 5.8% for those without such AFib (P < .001), for an odds ratio of 1.31 (95% confidence interval, 1.30-1.32).
Corresponding 30-day ORs for other events, all significant at P < .001, were:
- 1.31 (95% CI, 1.30-1.33) for heart failure
- 1.40 (95% CI, 1.37-1.43) for stroke
- 1.59 (95% CI, 1.43-1.75) for systemic embolism
- 1.14 (95% CI, 1.13-1.16) for major bleeding
- 0.81 (95% CI, 0.79-0.82) for MI
Those with preexisting AFib also had longer hospitalizations at a median 5 days, compared with 4 days for those without such AFib (P < .001).
The study has the limitations of most any retrospective cohort analysis. Other limitations, the report notes, include lack of information on any antiarrhythmic meds given during hospitalization or type of AFib.
For example, AFib that is permanent – compared with paroxysmal or persistent – may be associated with more atrial fibrosis, greater atrial dilatation, “and probably higher pressures inside the heart,” Dr. Mentias observed.
“That’s not always the case, but that’s the notion. So presumably people with persistent or permanent atrial fib would have more advanced heart disease, and that could imply more risk. But we did not have that kind of data.”
Dr. Mentias and Dr. Prasada report no relevant financial relationships; disclosures for the other authors are in the report. Dr. Curtis discloses serving on advisory boards for Abbott, Janssen Pharmaceuticals, Sanofi, and Milestone Pharmaceuticals; receiving honoraria for speaking from Medtronic and Zoll; and serving on a data-monitoring board for Medtronic. Dr. Korada reports he has no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Practice has gone back and forth on whether atrial fibrillation (AFib) should be considered in the preoperative cardiovascular risk (CV) evaluation of patients slated for noncardiac surgery, and the Revised Cardiac Risk Index (RCRI), currently widely used as an assessment tool, doesn’t include the arrhythmia.
But consideration of preexisting AFib along with the RCRI predicted 30-day mortality more sharply than the RCRI alone in an analysis of data covering several million patients slated for such procedures.
Indeed, AFib emerged as a significant, independent risk factor for a number of bad postoperative outcomes. Mortality within a month of the procedure climbed about 30% for patients with AFib before the noncardiac surgery. Their 30-day risks for stroke and for heart failure hospitalization went up similarly.
The addition of AFib to the RCRI significantly improved its ability to discriminate 30-day postoperative risk levels regardless of age, sex, and type of noncardiac surgery, Amgad Mentias, MD, Cleveland Clinic, told this news organization. And “it was able to correctly up-classify patients to high risk, if AFib was there, and it was able to down-classify some patients to lower risk if it wasn’t there.”
“I think [the findings] are convincing evidence that atrial fib should at least be part of the thought process for the surgical team and the medical team taking care of the patient,” said Dr. Mentias, who is senior author on the study published in the Journal of the American College of Cardiology, with lead author Sameer Prasada, MD, also of the Cleveland Clinic.
The results “call for incorporating AFib as a risk factor in perioperative risk scores for cardiovascular morbidity and mortality,” the published report states.
Supraventricular arrhythmias had been part of the Goldman Risk Index once widely used preoperatively to assess cardiac risk before practice adopted the RCRI in the past decade, observe Anne B. Curtis, MD, and Sai Krishna C. Korada, MD, University at Buffalo, New York, in an accompanying editorial.
The current findings “demonstrate improved prediction of adverse postsurgical outcomes” from supplementing the RCRI with AFib, they write. Given associations between preexisting AFib and serious cardiac events, “it is time to ‘re-revise’ the RCRI and acknowledge the importance of AFib in predicting adverse outcomes” after noncardiac surgery.
The new findings, however, aren’t all straightforward. In one result that remains a bit of a head-scratcher, postoperative risk of myocardial infarction (MI) in patients with preexisting AFib went in the opposite direction of risk for death and other CV outcomes, falling by almost 20%.
That is “hard to explain with the available data,” the report states, but “the use of anticoagulation, whether oral or parenteral (as a bridge therapy in the perioperative period), is a plausible explanation” given the frequent role of thrombosis in triggering MIs.
Consistent with such a mechanism, the group argues, the MI risk reduction was seen primarily among patients with AFib and a CHA2DS2-VASc score of 2 or higher – that is, those at highest risk for stroke and therefore most likely to be on oral anticoagulation. The MI risk reduction wasn’t seen in such patients with a CHA2DS2-VASc score of 0 or 1.
“I think that’s part of the explanation, that anticoagulation can reduce risk of MI. But it’s not the whole explanation,” Dr. Mentias said in an interview. If it were the sole mechanism, he said, then the same oral anticoagulation that protected against MI should have also cut the postoperative stroke risk. Yet that risk climbed 40% among patients with preexisting AFib.
The analysis started with 8.6 million Medicare patients with planned noncardiac surgery, seen from 2015 to 2019, of whom 16.4% had preexisting AFib. Propensity matching for demographics, urgency and type of surgery, CHA2DS2-VASc score, and RCRI index created two cohorts for comparison: 1.13 million patients with and 1.92 million without preexisting AFib.
Preexisting AFib was associated with a higher 30-day risk for death from any cause, the primary endpoint being 8.3% versus 5.8% for those without such AFib (P < .001), for an odds ratio of 1.31 (95% confidence interval, 1.30-1.32).
Corresponding 30-day ORs for other events, all significant at P < .001, were:
- 1.31 (95% CI, 1.30-1.33) for heart failure
- 1.40 (95% CI, 1.37-1.43) for stroke
- 1.59 (95% CI, 1.43-1.75) for systemic embolism
- 1.14 (95% CI, 1.13-1.16) for major bleeding
- 0.81 (95% CI, 0.79-0.82) for MI
Those with preexisting AFib also had longer hospitalizations at a median 5 days, compared with 4 days for those without such AFib (P < .001).
The study has the limitations of most any retrospective cohort analysis. Other limitations, the report notes, include lack of information on any antiarrhythmic meds given during hospitalization or type of AFib.
For example, AFib that is permanent – compared with paroxysmal or persistent – may be associated with more atrial fibrosis, greater atrial dilatation, “and probably higher pressures inside the heart,” Dr. Mentias observed.
“That’s not always the case, but that’s the notion. So presumably people with persistent or permanent atrial fib would have more advanced heart disease, and that could imply more risk. But we did not have that kind of data.”
Dr. Mentias and Dr. Prasada report no relevant financial relationships; disclosures for the other authors are in the report. Dr. Curtis discloses serving on advisory boards for Abbott, Janssen Pharmaceuticals, Sanofi, and Milestone Pharmaceuticals; receiving honoraria for speaking from Medtronic and Zoll; and serving on a data-monitoring board for Medtronic. Dr. Korada reports he has no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Practice has gone back and forth on whether atrial fibrillation (AFib) should be considered in the preoperative cardiovascular risk (CV) evaluation of patients slated for noncardiac surgery, and the Revised Cardiac Risk Index (RCRI), currently widely used as an assessment tool, doesn’t include the arrhythmia.
But consideration of preexisting AFib along with the RCRI predicted 30-day mortality more sharply than the RCRI alone in an analysis of data covering several million patients slated for such procedures.
Indeed, AFib emerged as a significant, independent risk factor for a number of bad postoperative outcomes. Mortality within a month of the procedure climbed about 30% for patients with AFib before the noncardiac surgery. Their 30-day risks for stroke and for heart failure hospitalization went up similarly.
The addition of AFib to the RCRI significantly improved its ability to discriminate 30-day postoperative risk levels regardless of age, sex, and type of noncardiac surgery, Amgad Mentias, MD, Cleveland Clinic, told this news organization. And “it was able to correctly up-classify patients to high risk, if AFib was there, and it was able to down-classify some patients to lower risk if it wasn’t there.”
“I think [the findings] are convincing evidence that atrial fib should at least be part of the thought process for the surgical team and the medical team taking care of the patient,” said Dr. Mentias, who is senior author on the study published in the Journal of the American College of Cardiology, with lead author Sameer Prasada, MD, also of the Cleveland Clinic.
The results “call for incorporating AFib as a risk factor in perioperative risk scores for cardiovascular morbidity and mortality,” the published report states.
Supraventricular arrhythmias had been part of the Goldman Risk Index once widely used preoperatively to assess cardiac risk before practice adopted the RCRI in the past decade, observe Anne B. Curtis, MD, and Sai Krishna C. Korada, MD, University at Buffalo, New York, in an accompanying editorial.
The current findings “demonstrate improved prediction of adverse postsurgical outcomes” from supplementing the RCRI with AFib, they write. Given associations between preexisting AFib and serious cardiac events, “it is time to ‘re-revise’ the RCRI and acknowledge the importance of AFib in predicting adverse outcomes” after noncardiac surgery.
The new findings, however, aren’t all straightforward. In one result that remains a bit of a head-scratcher, postoperative risk of myocardial infarction (MI) in patients with preexisting AFib went in the opposite direction of risk for death and other CV outcomes, falling by almost 20%.
That is “hard to explain with the available data,” the report states, but “the use of anticoagulation, whether oral or parenteral (as a bridge therapy in the perioperative period), is a plausible explanation” given the frequent role of thrombosis in triggering MIs.
Consistent with such a mechanism, the group argues, the MI risk reduction was seen primarily among patients with AFib and a CHA2DS2-VASc score of 2 or higher – that is, those at highest risk for stroke and therefore most likely to be on oral anticoagulation. The MI risk reduction wasn’t seen in such patients with a CHA2DS2-VASc score of 0 or 1.
“I think that’s part of the explanation, that anticoagulation can reduce risk of MI. But it’s not the whole explanation,” Dr. Mentias said in an interview. If it were the sole mechanism, he said, then the same oral anticoagulation that protected against MI should have also cut the postoperative stroke risk. Yet that risk climbed 40% among patients with preexisting AFib.
The analysis started with 8.6 million Medicare patients with planned noncardiac surgery, seen from 2015 to 2019, of whom 16.4% had preexisting AFib. Propensity matching for demographics, urgency and type of surgery, CHA2DS2-VASc score, and RCRI index created two cohorts for comparison: 1.13 million patients with and 1.92 million without preexisting AFib.
Preexisting AFib was associated with a higher 30-day risk for death from any cause, the primary endpoint being 8.3% versus 5.8% for those without such AFib (P < .001), for an odds ratio of 1.31 (95% confidence interval, 1.30-1.32).
Corresponding 30-day ORs for other events, all significant at P < .001, were:
- 1.31 (95% CI, 1.30-1.33) for heart failure
- 1.40 (95% CI, 1.37-1.43) for stroke
- 1.59 (95% CI, 1.43-1.75) for systemic embolism
- 1.14 (95% CI, 1.13-1.16) for major bleeding
- 0.81 (95% CI, 0.79-0.82) for MI
Those with preexisting AFib also had longer hospitalizations at a median 5 days, compared with 4 days for those without such AFib (P < .001).
The study has the limitations of most any retrospective cohort analysis. Other limitations, the report notes, include lack of information on any antiarrhythmic meds given during hospitalization or type of AFib.
For example, AFib that is permanent – compared with paroxysmal or persistent – may be associated with more atrial fibrosis, greater atrial dilatation, “and probably higher pressures inside the heart,” Dr. Mentias observed.
“That’s not always the case, but that’s the notion. So presumably people with persistent or permanent atrial fib would have more advanced heart disease, and that could imply more risk. But we did not have that kind of data.”
Dr. Mentias and Dr. Prasada report no relevant financial relationships; disclosures for the other authors are in the report. Dr. Curtis discloses serving on advisory boards for Abbott, Janssen Pharmaceuticals, Sanofi, and Milestone Pharmaceuticals; receiving honoraria for speaking from Medtronic and Zoll; and serving on a data-monitoring board for Medtronic. Dr. Korada reports he has no relevant financial relationships.
A version of this article first appeared on Medscape.com.
SCAI issues guidelines for PFO management, makes case for expansion
The first-ever guidelines for interventional cardiologists using percutaneous patent foramen ovale closure recommend expanding the use of the procedure beyond the Food and Drug Administration–approved indication following PFO-associated ischemic stroke, adding clarification about the use of PFO with anticoagulation and hedging against abuse and overuse of the procedure, said the chair of the guideline writing committee.
“The most important things surrounding these guidelines are to help clinicians and policymakers – third-party payers – to address PFO in patient subsets that were not included in the large randomized clinical trials that led to FDA approval,” said writing group chair Clifford J. Kavinsky, MD, PhD, chief of structural and interventional cardiology at Rush University Medical Center, Chicago.
The Society for Cardiovascular Angiography & Interventions issued the guidelines at its annual scientific sessions meeting in Atlanta and published them simultaneously in the society’s journal.
The guidelines issue strong and conditional recommendations. The former means clinicians should order the intervention for most patients; the latter means decisionmaking is more nuanced and should consider contributing factors.
The guidelines clarify patient selection for PFO closure outside the “pretty narrow” indication the FDA approved, Dr. Kavinsky said, which is for PFO-associated ischemic stroke in patients aged 18-60 years.
“So what about patients who are older than 60? What about patients who had their stroke 10 years ago?” Dr. Kavinsky asked. “Those are issues that were unanswered in the randomized clinical trials.”
The guidelines also refine recommendations about anticoagulation in these patients, including its use after PFO closure in selected patients, Dr. Kavinsky noted. “It’s the opinion of the panel that although anticoagulants may be effective, because of issues of noncompliance, because of issues of interruption of therapy by physicians for a variety of reasons, including surgery or noncompliance, that it is preferable to do a PFO device closure to giving anticoagulant therapy.”
Many of the recommendations cover PFO closure alongside antiplatelet or anticoagulation therapy. Key conditional recommendations for patients who haven’t had a PFO-related stroke are:
- Avoiding its routine use in patients with chronic migraines, prior decompression illness (DCI), thrombophilia, atrial septal aneurysm, transient ischemic attack (TIA), or deep vein thrombosis (DVT).
- Considering PFO closure in patients with platypnea-orthodeoxia syndrome (POS) with no other discernible cause of hypoxia or systemic embolism in whom other embolic causes have been ruled out.
In patients who’ve had a PFO-related stroke, the guidelines strongly recommend PFO closure versus antiplatelet therapy alone, but conditionally, not in patients with atrial fibrillation who’ve had an ischemic stroke. They also conditionally suggest PFO closure rather than long-term antiplatelet therapy alone in PFO stroke patients aged 60 and older, as well as those with thrombophilia already on antiplatelet therapy but not anticoagulation. However, the guidelines make no recommendation on PFO closure based on how much time has passed since the previous stroke.
“Furthermore,” Dr. Kavinsky said, “in patients who require lifelong anticoagulation because of recurrent DVT or recurrent pulmonary emboli or thrombopenia, if they’ve had a PFO-mediated stroke, then it’s our opinion that they should have their PFO closed in addition to taking lifelong anticoagulation because of the same issues of noncompliance and interruption of therapy.” Those are conditional recommendations.
The guideline also checks a box in the FDA labeling that mandated agreement between cardiology and neurology in patient selection. The American Academy of Neurology (AAN) issued its own guideline in 2020 for patients with stroke and PFO. In Europe, the European Society of Cardiology issued two position papers on expanded applications of PFO closure.
The recommendations on when PFO closure shouldn’t be done are noteworthy, Dr. Kavinsky said. “PFOs are present in 25% of the adult population, so the number of patients with PFO is huge and the indication for the FDA is really narrow: to reduce the risk of recurrent stroke in patients with PFO-mediated stroke. So, there’s the tremendous potential for abuse out there, of excessive procedures, of doing unnecessary procedures.”
The guidelines are a follow-up to the operator institutional requirements document SCAI issued in 2019 that set requirements for hospital offering and physicians performing PFO closure, Dr. Kavinsky added.
In an editorial accompanying the published guideline, Robert J. Sommer, MD, and Jamil A. Aboulhosn, MD, wrote that they support the recommendations “which help spotlight and clarify the growing list of potential indications for PFO closure.” They noted that the guidelines panel’s “strong” recommendations were for indications validated by randomized trials and that “conditional” recommendations were based on panelists’ experience and observational data.
“It is critical to recognize that most of these guidelines represent consensus opinion only,” wrote Dr. Sommer, who specializes in adult congenital and pediatric cardiology at Columbia University Irving Medical Center, New York, and Dr. Aboulhosn, an interventional cardiologist at Ronald Reagan University of California, Los Angeles, Medical Center. They emphasized the guidelines’ “heavy emphasis” on shared decisionmaking with patients.
Dr. Kavinsky is a principal investigator for Edwards Lifesciences, W.L. Gore and Associates, Medtronic, and Abbott. Dr. Sommer is a principal investigator and investigator in studies sponsored by W.L. Gore & Associates. Dr. Aboulhosn is a consultant to Abbott Medical.
The first-ever guidelines for interventional cardiologists using percutaneous patent foramen ovale closure recommend expanding the use of the procedure beyond the Food and Drug Administration–approved indication following PFO-associated ischemic stroke, adding clarification about the use of PFO with anticoagulation and hedging against abuse and overuse of the procedure, said the chair of the guideline writing committee.
“The most important things surrounding these guidelines are to help clinicians and policymakers – third-party payers – to address PFO in patient subsets that were not included in the large randomized clinical trials that led to FDA approval,” said writing group chair Clifford J. Kavinsky, MD, PhD, chief of structural and interventional cardiology at Rush University Medical Center, Chicago.
The Society for Cardiovascular Angiography & Interventions issued the guidelines at its annual scientific sessions meeting in Atlanta and published them simultaneously in the society’s journal.
The guidelines issue strong and conditional recommendations. The former means clinicians should order the intervention for most patients; the latter means decisionmaking is more nuanced and should consider contributing factors.
The guidelines clarify patient selection for PFO closure outside the “pretty narrow” indication the FDA approved, Dr. Kavinsky said, which is for PFO-associated ischemic stroke in patients aged 18-60 years.
“So what about patients who are older than 60? What about patients who had their stroke 10 years ago?” Dr. Kavinsky asked. “Those are issues that were unanswered in the randomized clinical trials.”
The guidelines also refine recommendations about anticoagulation in these patients, including its use after PFO closure in selected patients, Dr. Kavinsky noted. “It’s the opinion of the panel that although anticoagulants may be effective, because of issues of noncompliance, because of issues of interruption of therapy by physicians for a variety of reasons, including surgery or noncompliance, that it is preferable to do a PFO device closure to giving anticoagulant therapy.”
Many of the recommendations cover PFO closure alongside antiplatelet or anticoagulation therapy. Key conditional recommendations for patients who haven’t had a PFO-related stroke are:
- Avoiding its routine use in patients with chronic migraines, prior decompression illness (DCI), thrombophilia, atrial septal aneurysm, transient ischemic attack (TIA), or deep vein thrombosis (DVT).
- Considering PFO closure in patients with platypnea-orthodeoxia syndrome (POS) with no other discernible cause of hypoxia or systemic embolism in whom other embolic causes have been ruled out.
In patients who’ve had a PFO-related stroke, the guidelines strongly recommend PFO closure versus antiplatelet therapy alone, but conditionally, not in patients with atrial fibrillation who’ve had an ischemic stroke. They also conditionally suggest PFO closure rather than long-term antiplatelet therapy alone in PFO stroke patients aged 60 and older, as well as those with thrombophilia already on antiplatelet therapy but not anticoagulation. However, the guidelines make no recommendation on PFO closure based on how much time has passed since the previous stroke.
“Furthermore,” Dr. Kavinsky said, “in patients who require lifelong anticoagulation because of recurrent DVT or recurrent pulmonary emboli or thrombopenia, if they’ve had a PFO-mediated stroke, then it’s our opinion that they should have their PFO closed in addition to taking lifelong anticoagulation because of the same issues of noncompliance and interruption of therapy.” Those are conditional recommendations.
The guideline also checks a box in the FDA labeling that mandated agreement between cardiology and neurology in patient selection. The American Academy of Neurology (AAN) issued its own guideline in 2020 for patients with stroke and PFO. In Europe, the European Society of Cardiology issued two position papers on expanded applications of PFO closure.
The recommendations on when PFO closure shouldn’t be done are noteworthy, Dr. Kavinsky said. “PFOs are present in 25% of the adult population, so the number of patients with PFO is huge and the indication for the FDA is really narrow: to reduce the risk of recurrent stroke in patients with PFO-mediated stroke. So, there’s the tremendous potential for abuse out there, of excessive procedures, of doing unnecessary procedures.”
The guidelines are a follow-up to the operator institutional requirements document SCAI issued in 2019 that set requirements for hospital offering and physicians performing PFO closure, Dr. Kavinsky added.
In an editorial accompanying the published guideline, Robert J. Sommer, MD, and Jamil A. Aboulhosn, MD, wrote that they support the recommendations “which help spotlight and clarify the growing list of potential indications for PFO closure.” They noted that the guidelines panel’s “strong” recommendations were for indications validated by randomized trials and that “conditional” recommendations were based on panelists’ experience and observational data.
“It is critical to recognize that most of these guidelines represent consensus opinion only,” wrote Dr. Sommer, who specializes in adult congenital and pediatric cardiology at Columbia University Irving Medical Center, New York, and Dr. Aboulhosn, an interventional cardiologist at Ronald Reagan University of California, Los Angeles, Medical Center. They emphasized the guidelines’ “heavy emphasis” on shared decisionmaking with patients.
Dr. Kavinsky is a principal investigator for Edwards Lifesciences, W.L. Gore and Associates, Medtronic, and Abbott. Dr. Sommer is a principal investigator and investigator in studies sponsored by W.L. Gore & Associates. Dr. Aboulhosn is a consultant to Abbott Medical.
The first-ever guidelines for interventional cardiologists using percutaneous patent foramen ovale closure recommend expanding the use of the procedure beyond the Food and Drug Administration–approved indication following PFO-associated ischemic stroke, adding clarification about the use of PFO with anticoagulation and hedging against abuse and overuse of the procedure, said the chair of the guideline writing committee.
“The most important things surrounding these guidelines are to help clinicians and policymakers – third-party payers – to address PFO in patient subsets that were not included in the large randomized clinical trials that led to FDA approval,” said writing group chair Clifford J. Kavinsky, MD, PhD, chief of structural and interventional cardiology at Rush University Medical Center, Chicago.
The Society for Cardiovascular Angiography & Interventions issued the guidelines at its annual scientific sessions meeting in Atlanta and published them simultaneously in the society’s journal.
The guidelines issue strong and conditional recommendations. The former means clinicians should order the intervention for most patients; the latter means decisionmaking is more nuanced and should consider contributing factors.
The guidelines clarify patient selection for PFO closure outside the “pretty narrow” indication the FDA approved, Dr. Kavinsky said, which is for PFO-associated ischemic stroke in patients aged 18-60 years.
“So what about patients who are older than 60? What about patients who had their stroke 10 years ago?” Dr. Kavinsky asked. “Those are issues that were unanswered in the randomized clinical trials.”
The guidelines also refine recommendations about anticoagulation in these patients, including its use after PFO closure in selected patients, Dr. Kavinsky noted. “It’s the opinion of the panel that although anticoagulants may be effective, because of issues of noncompliance, because of issues of interruption of therapy by physicians for a variety of reasons, including surgery or noncompliance, that it is preferable to do a PFO device closure to giving anticoagulant therapy.”
Many of the recommendations cover PFO closure alongside antiplatelet or anticoagulation therapy. Key conditional recommendations for patients who haven’t had a PFO-related stroke are:
- Avoiding its routine use in patients with chronic migraines, prior decompression illness (DCI), thrombophilia, atrial septal aneurysm, transient ischemic attack (TIA), or deep vein thrombosis (DVT).
- Considering PFO closure in patients with platypnea-orthodeoxia syndrome (POS) with no other discernible cause of hypoxia or systemic embolism in whom other embolic causes have been ruled out.
In patients who’ve had a PFO-related stroke, the guidelines strongly recommend PFO closure versus antiplatelet therapy alone, but conditionally, not in patients with atrial fibrillation who’ve had an ischemic stroke. They also conditionally suggest PFO closure rather than long-term antiplatelet therapy alone in PFO stroke patients aged 60 and older, as well as those with thrombophilia already on antiplatelet therapy but not anticoagulation. However, the guidelines make no recommendation on PFO closure based on how much time has passed since the previous stroke.
“Furthermore,” Dr. Kavinsky said, “in patients who require lifelong anticoagulation because of recurrent DVT or recurrent pulmonary emboli or thrombopenia, if they’ve had a PFO-mediated stroke, then it’s our opinion that they should have their PFO closed in addition to taking lifelong anticoagulation because of the same issues of noncompliance and interruption of therapy.” Those are conditional recommendations.
The guideline also checks a box in the FDA labeling that mandated agreement between cardiology and neurology in patient selection. The American Academy of Neurology (AAN) issued its own guideline in 2020 for patients with stroke and PFO. In Europe, the European Society of Cardiology issued two position papers on expanded applications of PFO closure.
The recommendations on when PFO closure shouldn’t be done are noteworthy, Dr. Kavinsky said. “PFOs are present in 25% of the adult population, so the number of patients with PFO is huge and the indication for the FDA is really narrow: to reduce the risk of recurrent stroke in patients with PFO-mediated stroke. So, there’s the tremendous potential for abuse out there, of excessive procedures, of doing unnecessary procedures.”
The guidelines are a follow-up to the operator institutional requirements document SCAI issued in 2019 that set requirements for hospital offering and physicians performing PFO closure, Dr. Kavinsky added.
In an editorial accompanying the published guideline, Robert J. Sommer, MD, and Jamil A. Aboulhosn, MD, wrote that they support the recommendations “which help spotlight and clarify the growing list of potential indications for PFO closure.” They noted that the guidelines panel’s “strong” recommendations were for indications validated by randomized trials and that “conditional” recommendations were based on panelists’ experience and observational data.
“It is critical to recognize that most of these guidelines represent consensus opinion only,” wrote Dr. Sommer, who specializes in adult congenital and pediatric cardiology at Columbia University Irving Medical Center, New York, and Dr. Aboulhosn, an interventional cardiologist at Ronald Reagan University of California, Los Angeles, Medical Center. They emphasized the guidelines’ “heavy emphasis” on shared decisionmaking with patients.
Dr. Kavinsky is a principal investigator for Edwards Lifesciences, W.L. Gore and Associates, Medtronic, and Abbott. Dr. Sommer is a principal investigator and investigator in studies sponsored by W.L. Gore & Associates. Dr. Aboulhosn is a consultant to Abbott Medical.
FROM SCAI 2022