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New Medicare rule streamlines prior authorization in Medicare Advantage plans
A new federal rule seeks to reduce Medicare Advantage insurance plans’ prior authorization burdens on physicians while also ensuring that enrollees have the same access to necessary care that they would receive under traditional fee-for-service Medicare.
The prior authorization changes, announced this week, are part of the Centers for Medicare & Medicaid Services’ 2024 update of policy changes for Medicare Advantage and Part D pharmacy plans
Medicare Advantage plans’ business practices have raised significant concerns in recent years. More than 28 million Americans were enrolled in a Medicare Advantage plan in 2022, which is nearly half of all Medicare enrollees, according to the Kaiser Family Foundation.
Medicare pays a fixed amount per enrollee per year to these privately run managed care plans, in contrast to traditional fee-for-service Medicare. Medicare Advantage plans have been criticized for aggressive marketing, for overbilling the federal government for care, and for using prior authorization to inappropriately deny needed care to patients.
About 13% of prior authorization requests that are denied by Medicare Advantage plans actually met Medicare coverage rules and should have been approved, the Office of the Inspector General at the U.S. Department of Health & Human Services reported in 2022.
The newly finalized rule now requires Medicare Advantage plans to do the following.
- Ensure that a prior authorization approval, once granted, remains valid for as long as medically necessary to avoid disruptions in care.
- Conduct an annual review of utilization management policies.
- Ensure that coverage denials based on medical necessity be reviewed by health care professionals with relevant expertise before a denial can be issued.
Physician groups welcomed the changes. In a statement, the American Medical Association said that an initial reading of the rule suggested CMS had “taken important steps toward right-sizing the prior authorization process.”
The Medical Group Management Association praised CMS in a statement for having limited “dangerous disruptions and delays to necessary patient care” resulting from the cumbersome processes of prior approval. With the new rules, CMS will provide greater consistency across Advantage plans as well as traditional Medicare, said Anders Gilberg, MGMA’s senior vice president of government affairs, in a statement.
Peer consideration
The final rule did disappoint physician groups in one key way. CMS rebuffed requests to have CMS require Advantage plans to use reviewers of the same specialty as treating physicians in handling disputes about prior authorization. CMS said it expects plans to exercise judgment in finding reviewers with “sufficient expertise to make an informed and supportable decision.”
“In some instances, we expect that plans will use a physician or other health care professional of the same specialty or subspecialty as the treating physician,” CMS said. “In other instances, we expect that plans will utilize a reviewer with specialized training, certification, or clinical experience in the applicable field of medicine.”
Medicare Advantage marketing ‘sowing confusion’
With this final rule, CMS also sought to protect consumers from “potentially misleading marketing practices” used in promoting Medicare Advantage and Part D prescription drug plans.
The agency said it had received complaints about people who have received official-looking promotional materials for Medicare that directed them not to government sources of information but to Medicare Advantage and Part D plans or their agents and brokers.
Ads now must mention a specific plan name, and they cannot use the Medicare name, CMS logo, Medicare card, or other government information in a misleading way, CMS said.
“CMS can see no value or purpose in a non-governmental entity’s use of the Medicare logo or HHS logo except for the express purpose of sowing confusion and misrepresenting itself as the government,” the agency said.
A version of this article first appeared on Medscape.com.
A new federal rule seeks to reduce Medicare Advantage insurance plans’ prior authorization burdens on physicians while also ensuring that enrollees have the same access to necessary care that they would receive under traditional fee-for-service Medicare.
The prior authorization changes, announced this week, are part of the Centers for Medicare & Medicaid Services’ 2024 update of policy changes for Medicare Advantage and Part D pharmacy plans
Medicare Advantage plans’ business practices have raised significant concerns in recent years. More than 28 million Americans were enrolled in a Medicare Advantage plan in 2022, which is nearly half of all Medicare enrollees, according to the Kaiser Family Foundation.
Medicare pays a fixed amount per enrollee per year to these privately run managed care plans, in contrast to traditional fee-for-service Medicare. Medicare Advantage plans have been criticized for aggressive marketing, for overbilling the federal government for care, and for using prior authorization to inappropriately deny needed care to patients.
About 13% of prior authorization requests that are denied by Medicare Advantage plans actually met Medicare coverage rules and should have been approved, the Office of the Inspector General at the U.S. Department of Health & Human Services reported in 2022.
The newly finalized rule now requires Medicare Advantage plans to do the following.
- Ensure that a prior authorization approval, once granted, remains valid for as long as medically necessary to avoid disruptions in care.
- Conduct an annual review of utilization management policies.
- Ensure that coverage denials based on medical necessity be reviewed by health care professionals with relevant expertise before a denial can be issued.
Physician groups welcomed the changes. In a statement, the American Medical Association said that an initial reading of the rule suggested CMS had “taken important steps toward right-sizing the prior authorization process.”
The Medical Group Management Association praised CMS in a statement for having limited “dangerous disruptions and delays to necessary patient care” resulting from the cumbersome processes of prior approval. With the new rules, CMS will provide greater consistency across Advantage plans as well as traditional Medicare, said Anders Gilberg, MGMA’s senior vice president of government affairs, in a statement.
Peer consideration
The final rule did disappoint physician groups in one key way. CMS rebuffed requests to have CMS require Advantage plans to use reviewers of the same specialty as treating physicians in handling disputes about prior authorization. CMS said it expects plans to exercise judgment in finding reviewers with “sufficient expertise to make an informed and supportable decision.”
“In some instances, we expect that plans will use a physician or other health care professional of the same specialty or subspecialty as the treating physician,” CMS said. “In other instances, we expect that plans will utilize a reviewer with specialized training, certification, or clinical experience in the applicable field of medicine.”
Medicare Advantage marketing ‘sowing confusion’
With this final rule, CMS also sought to protect consumers from “potentially misleading marketing practices” used in promoting Medicare Advantage and Part D prescription drug plans.
The agency said it had received complaints about people who have received official-looking promotional materials for Medicare that directed them not to government sources of information but to Medicare Advantage and Part D plans or their agents and brokers.
Ads now must mention a specific plan name, and they cannot use the Medicare name, CMS logo, Medicare card, or other government information in a misleading way, CMS said.
“CMS can see no value or purpose in a non-governmental entity’s use of the Medicare logo or HHS logo except for the express purpose of sowing confusion and misrepresenting itself as the government,” the agency said.
A version of this article first appeared on Medscape.com.
A new federal rule seeks to reduce Medicare Advantage insurance plans’ prior authorization burdens on physicians while also ensuring that enrollees have the same access to necessary care that they would receive under traditional fee-for-service Medicare.
The prior authorization changes, announced this week, are part of the Centers for Medicare & Medicaid Services’ 2024 update of policy changes for Medicare Advantage and Part D pharmacy plans
Medicare Advantage plans’ business practices have raised significant concerns in recent years. More than 28 million Americans were enrolled in a Medicare Advantage plan in 2022, which is nearly half of all Medicare enrollees, according to the Kaiser Family Foundation.
Medicare pays a fixed amount per enrollee per year to these privately run managed care plans, in contrast to traditional fee-for-service Medicare. Medicare Advantage plans have been criticized for aggressive marketing, for overbilling the federal government for care, and for using prior authorization to inappropriately deny needed care to patients.
About 13% of prior authorization requests that are denied by Medicare Advantage plans actually met Medicare coverage rules and should have been approved, the Office of the Inspector General at the U.S. Department of Health & Human Services reported in 2022.
The newly finalized rule now requires Medicare Advantage plans to do the following.
- Ensure that a prior authorization approval, once granted, remains valid for as long as medically necessary to avoid disruptions in care.
- Conduct an annual review of utilization management policies.
- Ensure that coverage denials based on medical necessity be reviewed by health care professionals with relevant expertise before a denial can be issued.
Physician groups welcomed the changes. In a statement, the American Medical Association said that an initial reading of the rule suggested CMS had “taken important steps toward right-sizing the prior authorization process.”
The Medical Group Management Association praised CMS in a statement for having limited “dangerous disruptions and delays to necessary patient care” resulting from the cumbersome processes of prior approval. With the new rules, CMS will provide greater consistency across Advantage plans as well as traditional Medicare, said Anders Gilberg, MGMA’s senior vice president of government affairs, in a statement.
Peer consideration
The final rule did disappoint physician groups in one key way. CMS rebuffed requests to have CMS require Advantage plans to use reviewers of the same specialty as treating physicians in handling disputes about prior authorization. CMS said it expects plans to exercise judgment in finding reviewers with “sufficient expertise to make an informed and supportable decision.”
“In some instances, we expect that plans will use a physician or other health care professional of the same specialty or subspecialty as the treating physician,” CMS said. “In other instances, we expect that plans will utilize a reviewer with specialized training, certification, or clinical experience in the applicable field of medicine.”
Medicare Advantage marketing ‘sowing confusion’
With this final rule, CMS also sought to protect consumers from “potentially misleading marketing practices” used in promoting Medicare Advantage and Part D prescription drug plans.
The agency said it had received complaints about people who have received official-looking promotional materials for Medicare that directed them not to government sources of information but to Medicare Advantage and Part D plans or their agents and brokers.
Ads now must mention a specific plan name, and they cannot use the Medicare name, CMS logo, Medicare card, or other government information in a misleading way, CMS said.
“CMS can see no value or purpose in a non-governmental entity’s use of the Medicare logo or HHS logo except for the express purpose of sowing confusion and misrepresenting itself as the government,” the agency said.
A version of this article first appeared on Medscape.com.
Spherical heart may predict cardiomyopathy, AFib
A round heart, or left ventricle sphericity, predicted cardiomyopathy and atrial fibrillation (AFib) in a deep learning analysis of MRI images from close to 39,000 participants in the UK Biobank, a new study shows.
An increase of 1 standard deviation in the sphericity index (short axis length/long axis length) was associated with a 47% increased incidence of cardiomyopathy and a 20% increased incidence of AFib, independent of clinical factors and traditional MRI measures.
Furthermore, a genetic analysis suggested a shared architecture between sphericity and nonischemic cardiomyopathy, pointing to NICM as a possible causal factor for left ventricle sphericity among individuals with normal LV size and function.
“Physicians have known the heart gets rounder after heart attacks and as we get older,” David Ouyang, MD, a cardiologist in the Smidt Heart Institute at Cedars-Sinai Medical Center, Los Angeles, and a researcher in the division of artificial intelligence in medicine, said in an interview. “We wanted to see if this sphericity is prognostic of future disease even in healthy individuals.”
Although it is too early to recommend heart shape assessment in healthy asymptomatic people, he said, “physicians should be extra careful and think about treatments when they notice a patient’s heart is particularly round.”
The study was published online March 29 in the journal Med.
Sphericity index key
The investigators hypothesized that there is variation in LV sphericity within the spectrum of normal LV chamber size and systolic function, and that such variation might be a marker of cardiac risk with genetic influences.
To test this hypothesis, they used automated deep-learning segmentation of cardiac MRI data to estimate and analyze the sphericity index in a cohort of 38,897 individuals participating in the UK Biobank.
After adjustment for age at MRI and sex, an increased sphericity index was associated with an increased risk for cardiomyopathy (hazard ratio, 1.57), AFib (HR, 1.35), and heart failure (HR, 1.37).
No significant association was seen with cardiac arrest.
The team then stratified the cohort into quintiles and compared the top 20%, middle 60%, and bottom 20%. The relationship between the sphericity index and risk extended across the distribution; individuals with higher than median sphericity had increased disease incidence, and those with lower than median sphericity had decreased incidence.
Overall, a single standard deviation in the sphericity index was associated with increased risk of cardiomyopathy (HR, 1.47) and of AFib (HR, 1.20), independent of clinical factors and usual MRI measurements.
In a minimally adjusted model, the sphericity index was a predictor of incident cardiomyopathy, AFib, and heart failure.
Adjustment for clinical factors partially attenuated the heart failure association; additional adjustment for MRI measurements fully attenuated that association and partially attenuated the association with AFib.
However, in all adjusted models, the association with cardiomyopathy showed little attenuation.
Furthermore, the team identified four loci associated with sphericity at genomewide significance – PLN, ANGPT1, PDZRN3, and HLA DR/DQ – and Mendelian randomization supported NICM as a cause of LV sphericity.
Looking ahead
“While conventional imaging metrics have significant diagnostic and prognostic value, some of these measurements have been adopted out of convenience or tradition,” the authors noted. “By representing a specific multidimensional remodeling phenotype, sphericity has emerged as a distinct morphologic trait with features not adequately captured by conventional measurements.
“We expect that the search space of potential imaging measurements is vast, and we have only begun to scratch at the surface of disease associations.”
Indeed, Dr. Ouyang said his group is “trying to evaluate the sphericity in echocardiograms or heart ultrasounds, which are more common and cheaper than MRI.”
“The main caveat is translating the information directly to patient care,” Richard C. Becker, MD, director and physician-in-chief of the University of Cincinnati Heart, Lung, and Vascular Institute, said in an interview. “Near-term yield could include using the spherical calculation in routine MRI of the heart, and based on the findings, following patients more closely if there is an abnormal shape. Or performing an MRI and targeted gene testing if there is a family history of cardiomyopathy or [of] an abnormal shape of the heart.”
“Validation of the findings and large-scale evaluation of the genes identified, and how they interact with patient and environmental factors, will be very important,” he added.
Nevertheless, “the study was well done and may serve as a foundation for future research,” Dr. Becker said. “The investigators used several powerful tools, including MRI, genomics, and [artificial intelligence] to draw their conclusions. This is precisely the way that ‘big data’ should be used – in a complementary fashion.”
The study authors and Dr. Becker reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
A round heart, or left ventricle sphericity, predicted cardiomyopathy and atrial fibrillation (AFib) in a deep learning analysis of MRI images from close to 39,000 participants in the UK Biobank, a new study shows.
An increase of 1 standard deviation in the sphericity index (short axis length/long axis length) was associated with a 47% increased incidence of cardiomyopathy and a 20% increased incidence of AFib, independent of clinical factors and traditional MRI measures.
Furthermore, a genetic analysis suggested a shared architecture between sphericity and nonischemic cardiomyopathy, pointing to NICM as a possible causal factor for left ventricle sphericity among individuals with normal LV size and function.
“Physicians have known the heart gets rounder after heart attacks and as we get older,” David Ouyang, MD, a cardiologist in the Smidt Heart Institute at Cedars-Sinai Medical Center, Los Angeles, and a researcher in the division of artificial intelligence in medicine, said in an interview. “We wanted to see if this sphericity is prognostic of future disease even in healthy individuals.”
Although it is too early to recommend heart shape assessment in healthy asymptomatic people, he said, “physicians should be extra careful and think about treatments when they notice a patient’s heart is particularly round.”
The study was published online March 29 in the journal Med.
Sphericity index key
The investigators hypothesized that there is variation in LV sphericity within the spectrum of normal LV chamber size and systolic function, and that such variation might be a marker of cardiac risk with genetic influences.
To test this hypothesis, they used automated deep-learning segmentation of cardiac MRI data to estimate and analyze the sphericity index in a cohort of 38,897 individuals participating in the UK Biobank.
After adjustment for age at MRI and sex, an increased sphericity index was associated with an increased risk for cardiomyopathy (hazard ratio, 1.57), AFib (HR, 1.35), and heart failure (HR, 1.37).
No significant association was seen with cardiac arrest.
The team then stratified the cohort into quintiles and compared the top 20%, middle 60%, and bottom 20%. The relationship between the sphericity index and risk extended across the distribution; individuals with higher than median sphericity had increased disease incidence, and those with lower than median sphericity had decreased incidence.
Overall, a single standard deviation in the sphericity index was associated with increased risk of cardiomyopathy (HR, 1.47) and of AFib (HR, 1.20), independent of clinical factors and usual MRI measurements.
In a minimally adjusted model, the sphericity index was a predictor of incident cardiomyopathy, AFib, and heart failure.
Adjustment for clinical factors partially attenuated the heart failure association; additional adjustment for MRI measurements fully attenuated that association and partially attenuated the association with AFib.
However, in all adjusted models, the association with cardiomyopathy showed little attenuation.
Furthermore, the team identified four loci associated with sphericity at genomewide significance – PLN, ANGPT1, PDZRN3, and HLA DR/DQ – and Mendelian randomization supported NICM as a cause of LV sphericity.
Looking ahead
“While conventional imaging metrics have significant diagnostic and prognostic value, some of these measurements have been adopted out of convenience or tradition,” the authors noted. “By representing a specific multidimensional remodeling phenotype, sphericity has emerged as a distinct morphologic trait with features not adequately captured by conventional measurements.
“We expect that the search space of potential imaging measurements is vast, and we have only begun to scratch at the surface of disease associations.”
Indeed, Dr. Ouyang said his group is “trying to evaluate the sphericity in echocardiograms or heart ultrasounds, which are more common and cheaper than MRI.”
“The main caveat is translating the information directly to patient care,” Richard C. Becker, MD, director and physician-in-chief of the University of Cincinnati Heart, Lung, and Vascular Institute, said in an interview. “Near-term yield could include using the spherical calculation in routine MRI of the heart, and based on the findings, following patients more closely if there is an abnormal shape. Or performing an MRI and targeted gene testing if there is a family history of cardiomyopathy or [of] an abnormal shape of the heart.”
“Validation of the findings and large-scale evaluation of the genes identified, and how they interact with patient and environmental factors, will be very important,” he added.
Nevertheless, “the study was well done and may serve as a foundation for future research,” Dr. Becker said. “The investigators used several powerful tools, including MRI, genomics, and [artificial intelligence] to draw their conclusions. This is precisely the way that ‘big data’ should be used – in a complementary fashion.”
The study authors and Dr. Becker reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
A round heart, or left ventricle sphericity, predicted cardiomyopathy and atrial fibrillation (AFib) in a deep learning analysis of MRI images from close to 39,000 participants in the UK Biobank, a new study shows.
An increase of 1 standard deviation in the sphericity index (short axis length/long axis length) was associated with a 47% increased incidence of cardiomyopathy and a 20% increased incidence of AFib, independent of clinical factors and traditional MRI measures.
Furthermore, a genetic analysis suggested a shared architecture between sphericity and nonischemic cardiomyopathy, pointing to NICM as a possible causal factor for left ventricle sphericity among individuals with normal LV size and function.
“Physicians have known the heart gets rounder after heart attacks and as we get older,” David Ouyang, MD, a cardiologist in the Smidt Heart Institute at Cedars-Sinai Medical Center, Los Angeles, and a researcher in the division of artificial intelligence in medicine, said in an interview. “We wanted to see if this sphericity is prognostic of future disease even in healthy individuals.”
Although it is too early to recommend heart shape assessment in healthy asymptomatic people, he said, “physicians should be extra careful and think about treatments when they notice a patient’s heart is particularly round.”
The study was published online March 29 in the journal Med.
Sphericity index key
The investigators hypothesized that there is variation in LV sphericity within the spectrum of normal LV chamber size and systolic function, and that such variation might be a marker of cardiac risk with genetic influences.
To test this hypothesis, they used automated deep-learning segmentation of cardiac MRI data to estimate and analyze the sphericity index in a cohort of 38,897 individuals participating in the UK Biobank.
After adjustment for age at MRI and sex, an increased sphericity index was associated with an increased risk for cardiomyopathy (hazard ratio, 1.57), AFib (HR, 1.35), and heart failure (HR, 1.37).
No significant association was seen with cardiac arrest.
The team then stratified the cohort into quintiles and compared the top 20%, middle 60%, and bottom 20%. The relationship between the sphericity index and risk extended across the distribution; individuals with higher than median sphericity had increased disease incidence, and those with lower than median sphericity had decreased incidence.
Overall, a single standard deviation in the sphericity index was associated with increased risk of cardiomyopathy (HR, 1.47) and of AFib (HR, 1.20), independent of clinical factors and usual MRI measurements.
In a minimally adjusted model, the sphericity index was a predictor of incident cardiomyopathy, AFib, and heart failure.
Adjustment for clinical factors partially attenuated the heart failure association; additional adjustment for MRI measurements fully attenuated that association and partially attenuated the association with AFib.
However, in all adjusted models, the association with cardiomyopathy showed little attenuation.
Furthermore, the team identified four loci associated with sphericity at genomewide significance – PLN, ANGPT1, PDZRN3, and HLA DR/DQ – and Mendelian randomization supported NICM as a cause of LV sphericity.
Looking ahead
“While conventional imaging metrics have significant diagnostic and prognostic value, some of these measurements have been adopted out of convenience or tradition,” the authors noted. “By representing a specific multidimensional remodeling phenotype, sphericity has emerged as a distinct morphologic trait with features not adequately captured by conventional measurements.
“We expect that the search space of potential imaging measurements is vast, and we have only begun to scratch at the surface of disease associations.”
Indeed, Dr. Ouyang said his group is “trying to evaluate the sphericity in echocardiograms or heart ultrasounds, which are more common and cheaper than MRI.”
“The main caveat is translating the information directly to patient care,” Richard C. Becker, MD, director and physician-in-chief of the University of Cincinnati Heart, Lung, and Vascular Institute, said in an interview. “Near-term yield could include using the spherical calculation in routine MRI of the heart, and based on the findings, following patients more closely if there is an abnormal shape. Or performing an MRI and targeted gene testing if there is a family history of cardiomyopathy or [of] an abnormal shape of the heart.”
“Validation of the findings and large-scale evaluation of the genes identified, and how they interact with patient and environmental factors, will be very important,” he added.
Nevertheless, “the study was well done and may serve as a foundation for future research,” Dr. Becker said. “The investigators used several powerful tools, including MRI, genomics, and [artificial intelligence] to draw their conclusions. This is precisely the way that ‘big data’ should be used – in a complementary fashion.”
The study authors and Dr. Becker reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM MED
Malpractice risks for docs who oversee NPs or PAs
Even in states that have abolished requirements that NPs be physician-supervised, physicians may still be liable by virtue of employing the NP, according to William P. Sullivan, DO, an attorney and emergency physician in Frankfort, Ill.
Indeed, the vast majority of lawsuits against NPs and PAs name the supervising physician. According to a study of claims against NPs from 2011 to 2016, 82% of the cases also named the supervising physician.
Employed or contracted physicians assigned to supervise NPs or PAs are also affected, Dr. Sullivan said. “The employed physicians’ contract with a hospital or staffing company may require them to assist in the selection, supervision, and/or training of NPs or PAs,” he said. He added that supervisory duties may also be assigned through hospital bylaws.
“The physician is usually not paid anything extra for this work and may not be given extra time to perform it,” Dr. Sullivan said. But still, he said, that physician could be named in a lawsuit and wind up bearing some responsibility for an NP’s or PA’s mistake.
In addition to facing medical malpractice suits, Dr. Sullivan said, doctors are often sanctioned by state licensure boards for improperly supervising NPs and PAs. Licensure boards often require extensive protocols for supervision of NPs and PAs.
Yet more states are removing supervision requirements
With the addition of Kansas and New York in 2022 and California in 2023, 27 states no longer require supervision for all or most NPs. Sixteen of those states, including New York and California, have instituted progressive practice authority that requires temporary supervision of new NPs but then removes supervision after a period of 6 months to 4 years, depending on the state, for the rest of their career.
“When it comes to NP independence, the horse is already out of the barn,” Dr. Sullivan said. “It’s unlikely that states will repeal laws granting NPs independence, and in fact, more states are likely to pass them.”
*PAs, in contrast, are well behind NPs in achieving independence, but the American Academy of Physician Associates (AAPA) is calling to eliminate a mandated relationship with a specific physician. So far, Utah, North Dakota and Wyoming have ended physician supervision of PAs, while California and Hawaii have eliminated mandated chart review. Other states are considering eliminating physician supervision of PAs, according to the AAPA.
In states that have abolished oversight requirements for NPs, “liability can then shift to the NP when the NP is fully independent,” Cathy Klein, an advanced practice registered nurse who helped found the NP profession 50 years ago, told this news organization. “More NPs are starting their own practices, and in many cases, patients actually prefer to see an NP.”
As more NPs became more autonomous, the average payment that NPs incurred in professional liability lawsuits rose by 10.5% from 2017 to 2022, to $332,187, according to the Nurses Service Organization (NSO), a nursing malpractice insurer.
The number of malpractice judgments against autonomous NPs alone has also been rising. From 2012 to 2017, autonomous NPs’ share of all NP cases rose from 7% to 16.4%, the NSO reported.
The good news for physicians is that states’ removal of restrictions on NPs has reduced physicians’ liability to some extent. A 2017 study found that enacting less restrictive scope-of-practice laws for NPs decreased the number of payments made by physicians in NP cases by as much as 31%.
However, the top location for NP payouts remains the physician’s office, not the autonomous NP’s practice, according to the latter NSO report. Plaintiffs sue NPs’ and PAs’ supervising physicians on the basis of legal concepts, such as vicarious liability and respondeat superior. Even if the physician-employer never saw the patient, he or she can be held liable.
Court cases in which supervising physician was found liable
There are plenty of judgments against supervising or collaborating physicians when the NP or PA made the error. Typically, the doctor was faulted for paying little attention to the NP or PA he or she was supposed to supervise.
Dr. Sullivan points to a 2016 case in which a New York jury held a physician 40% liable for a $7 million judgment in a malpractice case involving a PA’s care of a patient in the emergency department. The case is Shajan v. South Nassau Community Hospital in New York.
“The patient presented with nontraumatic leg pain to his lower leg, was diagnosed by the PA with a muscle strain, and discharged without a physician evaluation,” Dr. Sullivan said. The next day, the patient visited an orthopedist who immediately diagnosed compartment syndrome, an emergent condition in which pressure builds up in an affected extremity, damaging the muscles and nerves. “The patient developed irreversible nerve damage and chronic regional pain syndrome,” he said.
A malpractice lawsuit named the PA and the emergency physician he was supposed to be reporting to. Even though the physician had never seen the patient, he had signed off on the PA’s note from a patient’s ED visit. “Testimony during the trial focused on hospital protocols that the supervising physician was supposed to take,” Dr. Sullivan said.
When doctors share fault, they frequently failed to follow the collaborative agreement with the NP or PA. In Collip v. Ratts, a 2015 Indiana case in which the patient died from a drug interaction, the doctor’s certified public accountant stated that the doctor was required to review at least 5% of the NP’s charts every week to evaluate her prescriptive practices.
The doctor admitted that he never reviewed the NP’s charts on a weekly basis. He did conduct some cursory reviews of some of the NP’s notes, and in them he noted concerns for her prescribing practices and suggested she attend a narcotics-prescribing seminar, but he did not follow up to make sure she had done this.
Sometimes the NP or PA who made the mistake may actually be dropped from the lawsuit, leaving the supervising physician fully liable. In these cases, courts reason that a fully engaged supervisor could have prevented the error. In the 2006 case of Husak v. Siegal, the Florida Supreme Court dropped the NP from the case, ruling that the NP had provided the supervising doctor all the information he needed in order to tell her what to do for the patient.
The court noted the physician had failed to look at the chart, even though he was required to do so under his supervisory agreement with the NP. The doctor “could have made the correct diagnosis or referral had he been attentive,” the court said. Therefore, there was “no evidence of independent negligence” by the NP, even though she was the one who had made the incorrect diagnosis that harmed the patient.
When states require an autonomous NP to have a supervisory relationship with a doctor, the supervisor may be unavailable and may fail to designate a substitute. In Texas in January 2019, a 7-year-old girl died of pneumonia after being treated by an NP in an urgent care clinic. The NP had told the parents that the child could safely go home and only needed ibuprofen. The parents brought the girl back home, and she died 15 hours later. The Wattenbargers sued the NP, and the doctor’s supervision was a topic in the trial.
The supervising physician for the NP was out of the country at the time. He said that he had found a substitute, but the substitute doctor testified she had no idea she was designated to be the substitute, according to Niran Al-Agba, MD, a family physician in Silverdale, Wash., who has written on the Texas case. Dr. Al-Agba told this news organization the case appears to have been settled confidentially.
Different standards for expert witnesses
In many states, courts do not allow physicians to testify as expert witnesses in malpractice cases against NPs, arguing that nurses have a different set of standards than doctors have, Dr. Sullivan reported.
These states include Arkansas, Illinois, North Carolina, and New York, according to a report by SEAK Inc., an expert witness training program. The report said most other states allow physician experts in these cases, but they may still require that they have experience with the nursing standard of care.
Dr. Sullivan said some courts are whittling away at the ban on physician experts, and the ban may eventually disappear. He reported that in Oklahoma, which normally upholds the ban, a judge recently allowed a physician-expert to testify in a case involving the death of a 19-year-old woman, Alexus Ochoa, in an ED staffed by an NP. The judge reasoned that Ms. Ochoa’s parents assumed the ED was staffed by physicians and would adhere to medical standards.
Supervision pointers from a physician
Physicians who supervise NPs or PAs say it is important to keep track of their skills and help them sharpen their expertise. Their scope of practice and physicians’ supervisory responsibilities are included in the collaborative agreement.
Arthur Apolinario, MD, a family physician in Clinton, N.C., says his 10-physician practice, which employs six NPs and one PA, works under a collaborative agreement. “The agreement defines each person’s scope of practice. They can’t do certain procedures, such as surgery, and they need extra training before doing certain tasks alone, such as joint injection.
“You have to always figure that if there is a lawsuit against one of them, you as the supervising physician would be named,” said Dr. Apolinario, who is also president of the North Carolina Medical Society. “We try to avert mistakes by meeting regularly with our NPs and PAs and making sure they keep up to date.”
Collaborating with autonomous NPs
Even when NPs operate independently in states that have abolished supervision, physicians may still have some liability if they give NPs advice, Dr. Al-Agba said.
At her Washington state practice, Dr. Al-Agba shares an office with an autonomous NP. “We share overhead and a front desk, but we have separate patients,” Dr. Al-Agba said. “This arrangement works very well for both of us.”
The NP sometimes asks her for advice. When this occurs, Dr. Al-Agba said she always makes sure to see the patient first. “If you don’t actually see the patient, there could be a misunderstanding that could lead to an error,” she said.
Conclusion
Even though NPs now have autonomy in most states, supervising physicians may still be liable for NP malpractice by virtue of being their employers, and physicians in the remaining states are liable for NPs through state law and for PAs in virtually all the states. To determine the supervising physician’s fault, courts often study whether the physician has met the terms of the collaborative agreement.
Physicians can reduce collaborating NPs’ and PAs’ liability by properly training them, by verifying their scope of practice, by making themselves easily available for consultation, and by occasionally seeing their patients. If their NPs and PAs do commit malpractice, supervising physicians may be able to protect themselves from liability by adhering to all requirements of the collaborative agreement.
*Correction, 4/19/2023: An earlier version of this story misstated the name of the AAPA and the states that have ended physician supervision of PAs.
A version of this article first appeared on Medscape.com.
Even in states that have abolished requirements that NPs be physician-supervised, physicians may still be liable by virtue of employing the NP, according to William P. Sullivan, DO, an attorney and emergency physician in Frankfort, Ill.
Indeed, the vast majority of lawsuits against NPs and PAs name the supervising physician. According to a study of claims against NPs from 2011 to 2016, 82% of the cases also named the supervising physician.
Employed or contracted physicians assigned to supervise NPs or PAs are also affected, Dr. Sullivan said. “The employed physicians’ contract with a hospital or staffing company may require them to assist in the selection, supervision, and/or training of NPs or PAs,” he said. He added that supervisory duties may also be assigned through hospital bylaws.
“The physician is usually not paid anything extra for this work and may not be given extra time to perform it,” Dr. Sullivan said. But still, he said, that physician could be named in a lawsuit and wind up bearing some responsibility for an NP’s or PA’s mistake.
In addition to facing medical malpractice suits, Dr. Sullivan said, doctors are often sanctioned by state licensure boards for improperly supervising NPs and PAs. Licensure boards often require extensive protocols for supervision of NPs and PAs.
Yet more states are removing supervision requirements
With the addition of Kansas and New York in 2022 and California in 2023, 27 states no longer require supervision for all or most NPs. Sixteen of those states, including New York and California, have instituted progressive practice authority that requires temporary supervision of new NPs but then removes supervision after a period of 6 months to 4 years, depending on the state, for the rest of their career.
“When it comes to NP independence, the horse is already out of the barn,” Dr. Sullivan said. “It’s unlikely that states will repeal laws granting NPs independence, and in fact, more states are likely to pass them.”
*PAs, in contrast, are well behind NPs in achieving independence, but the American Academy of Physician Associates (AAPA) is calling to eliminate a mandated relationship with a specific physician. So far, Utah, North Dakota and Wyoming have ended physician supervision of PAs, while California and Hawaii have eliminated mandated chart review. Other states are considering eliminating physician supervision of PAs, according to the AAPA.
In states that have abolished oversight requirements for NPs, “liability can then shift to the NP when the NP is fully independent,” Cathy Klein, an advanced practice registered nurse who helped found the NP profession 50 years ago, told this news organization. “More NPs are starting their own practices, and in many cases, patients actually prefer to see an NP.”
As more NPs became more autonomous, the average payment that NPs incurred in professional liability lawsuits rose by 10.5% from 2017 to 2022, to $332,187, according to the Nurses Service Organization (NSO), a nursing malpractice insurer.
The number of malpractice judgments against autonomous NPs alone has also been rising. From 2012 to 2017, autonomous NPs’ share of all NP cases rose from 7% to 16.4%, the NSO reported.
The good news for physicians is that states’ removal of restrictions on NPs has reduced physicians’ liability to some extent. A 2017 study found that enacting less restrictive scope-of-practice laws for NPs decreased the number of payments made by physicians in NP cases by as much as 31%.
However, the top location for NP payouts remains the physician’s office, not the autonomous NP’s practice, according to the latter NSO report. Plaintiffs sue NPs’ and PAs’ supervising physicians on the basis of legal concepts, such as vicarious liability and respondeat superior. Even if the physician-employer never saw the patient, he or she can be held liable.
Court cases in which supervising physician was found liable
There are plenty of judgments against supervising or collaborating physicians when the NP or PA made the error. Typically, the doctor was faulted for paying little attention to the NP or PA he or she was supposed to supervise.
Dr. Sullivan points to a 2016 case in which a New York jury held a physician 40% liable for a $7 million judgment in a malpractice case involving a PA’s care of a patient in the emergency department. The case is Shajan v. South Nassau Community Hospital in New York.
“The patient presented with nontraumatic leg pain to his lower leg, was diagnosed by the PA with a muscle strain, and discharged without a physician evaluation,” Dr. Sullivan said. The next day, the patient visited an orthopedist who immediately diagnosed compartment syndrome, an emergent condition in which pressure builds up in an affected extremity, damaging the muscles and nerves. “The patient developed irreversible nerve damage and chronic regional pain syndrome,” he said.
A malpractice lawsuit named the PA and the emergency physician he was supposed to be reporting to. Even though the physician had never seen the patient, he had signed off on the PA’s note from a patient’s ED visit. “Testimony during the trial focused on hospital protocols that the supervising physician was supposed to take,” Dr. Sullivan said.
When doctors share fault, they frequently failed to follow the collaborative agreement with the NP or PA. In Collip v. Ratts, a 2015 Indiana case in which the patient died from a drug interaction, the doctor’s certified public accountant stated that the doctor was required to review at least 5% of the NP’s charts every week to evaluate her prescriptive practices.
The doctor admitted that he never reviewed the NP’s charts on a weekly basis. He did conduct some cursory reviews of some of the NP’s notes, and in them he noted concerns for her prescribing practices and suggested she attend a narcotics-prescribing seminar, but he did not follow up to make sure she had done this.
Sometimes the NP or PA who made the mistake may actually be dropped from the lawsuit, leaving the supervising physician fully liable. In these cases, courts reason that a fully engaged supervisor could have prevented the error. In the 2006 case of Husak v. Siegal, the Florida Supreme Court dropped the NP from the case, ruling that the NP had provided the supervising doctor all the information he needed in order to tell her what to do for the patient.
The court noted the physician had failed to look at the chart, even though he was required to do so under his supervisory agreement with the NP. The doctor “could have made the correct diagnosis or referral had he been attentive,” the court said. Therefore, there was “no evidence of independent negligence” by the NP, even though she was the one who had made the incorrect diagnosis that harmed the patient.
When states require an autonomous NP to have a supervisory relationship with a doctor, the supervisor may be unavailable and may fail to designate a substitute. In Texas in January 2019, a 7-year-old girl died of pneumonia after being treated by an NP in an urgent care clinic. The NP had told the parents that the child could safely go home and only needed ibuprofen. The parents brought the girl back home, and she died 15 hours later. The Wattenbargers sued the NP, and the doctor’s supervision was a topic in the trial.
The supervising physician for the NP was out of the country at the time. He said that he had found a substitute, but the substitute doctor testified she had no idea she was designated to be the substitute, according to Niran Al-Agba, MD, a family physician in Silverdale, Wash., who has written on the Texas case. Dr. Al-Agba told this news organization the case appears to have been settled confidentially.
Different standards for expert witnesses
In many states, courts do not allow physicians to testify as expert witnesses in malpractice cases against NPs, arguing that nurses have a different set of standards than doctors have, Dr. Sullivan reported.
These states include Arkansas, Illinois, North Carolina, and New York, according to a report by SEAK Inc., an expert witness training program. The report said most other states allow physician experts in these cases, but they may still require that they have experience with the nursing standard of care.
Dr. Sullivan said some courts are whittling away at the ban on physician experts, and the ban may eventually disappear. He reported that in Oklahoma, which normally upholds the ban, a judge recently allowed a physician-expert to testify in a case involving the death of a 19-year-old woman, Alexus Ochoa, in an ED staffed by an NP. The judge reasoned that Ms. Ochoa’s parents assumed the ED was staffed by physicians and would adhere to medical standards.
Supervision pointers from a physician
Physicians who supervise NPs or PAs say it is important to keep track of their skills and help them sharpen their expertise. Their scope of practice and physicians’ supervisory responsibilities are included in the collaborative agreement.
Arthur Apolinario, MD, a family physician in Clinton, N.C., says his 10-physician practice, which employs six NPs and one PA, works under a collaborative agreement. “The agreement defines each person’s scope of practice. They can’t do certain procedures, such as surgery, and they need extra training before doing certain tasks alone, such as joint injection.
“You have to always figure that if there is a lawsuit against one of them, you as the supervising physician would be named,” said Dr. Apolinario, who is also president of the North Carolina Medical Society. “We try to avert mistakes by meeting regularly with our NPs and PAs and making sure they keep up to date.”
Collaborating with autonomous NPs
Even when NPs operate independently in states that have abolished supervision, physicians may still have some liability if they give NPs advice, Dr. Al-Agba said.
At her Washington state practice, Dr. Al-Agba shares an office with an autonomous NP. “We share overhead and a front desk, but we have separate patients,” Dr. Al-Agba said. “This arrangement works very well for both of us.”
The NP sometimes asks her for advice. When this occurs, Dr. Al-Agba said she always makes sure to see the patient first. “If you don’t actually see the patient, there could be a misunderstanding that could lead to an error,” she said.
Conclusion
Even though NPs now have autonomy in most states, supervising physicians may still be liable for NP malpractice by virtue of being their employers, and physicians in the remaining states are liable for NPs through state law and for PAs in virtually all the states. To determine the supervising physician’s fault, courts often study whether the physician has met the terms of the collaborative agreement.
Physicians can reduce collaborating NPs’ and PAs’ liability by properly training them, by verifying their scope of practice, by making themselves easily available for consultation, and by occasionally seeing their patients. If their NPs and PAs do commit malpractice, supervising physicians may be able to protect themselves from liability by adhering to all requirements of the collaborative agreement.
*Correction, 4/19/2023: An earlier version of this story misstated the name of the AAPA and the states that have ended physician supervision of PAs.
A version of this article first appeared on Medscape.com.
Even in states that have abolished requirements that NPs be physician-supervised, physicians may still be liable by virtue of employing the NP, according to William P. Sullivan, DO, an attorney and emergency physician in Frankfort, Ill.
Indeed, the vast majority of lawsuits against NPs and PAs name the supervising physician. According to a study of claims against NPs from 2011 to 2016, 82% of the cases also named the supervising physician.
Employed or contracted physicians assigned to supervise NPs or PAs are also affected, Dr. Sullivan said. “The employed physicians’ contract with a hospital or staffing company may require them to assist in the selection, supervision, and/or training of NPs or PAs,” he said. He added that supervisory duties may also be assigned through hospital bylaws.
“The physician is usually not paid anything extra for this work and may not be given extra time to perform it,” Dr. Sullivan said. But still, he said, that physician could be named in a lawsuit and wind up bearing some responsibility for an NP’s or PA’s mistake.
In addition to facing medical malpractice suits, Dr. Sullivan said, doctors are often sanctioned by state licensure boards for improperly supervising NPs and PAs. Licensure boards often require extensive protocols for supervision of NPs and PAs.
Yet more states are removing supervision requirements
With the addition of Kansas and New York in 2022 and California in 2023, 27 states no longer require supervision for all or most NPs. Sixteen of those states, including New York and California, have instituted progressive practice authority that requires temporary supervision of new NPs but then removes supervision after a period of 6 months to 4 years, depending on the state, for the rest of their career.
“When it comes to NP independence, the horse is already out of the barn,” Dr. Sullivan said. “It’s unlikely that states will repeal laws granting NPs independence, and in fact, more states are likely to pass them.”
*PAs, in contrast, are well behind NPs in achieving independence, but the American Academy of Physician Associates (AAPA) is calling to eliminate a mandated relationship with a specific physician. So far, Utah, North Dakota and Wyoming have ended physician supervision of PAs, while California and Hawaii have eliminated mandated chart review. Other states are considering eliminating physician supervision of PAs, according to the AAPA.
In states that have abolished oversight requirements for NPs, “liability can then shift to the NP when the NP is fully independent,” Cathy Klein, an advanced practice registered nurse who helped found the NP profession 50 years ago, told this news organization. “More NPs are starting their own practices, and in many cases, patients actually prefer to see an NP.”
As more NPs became more autonomous, the average payment that NPs incurred in professional liability lawsuits rose by 10.5% from 2017 to 2022, to $332,187, according to the Nurses Service Organization (NSO), a nursing malpractice insurer.
The number of malpractice judgments against autonomous NPs alone has also been rising. From 2012 to 2017, autonomous NPs’ share of all NP cases rose from 7% to 16.4%, the NSO reported.
The good news for physicians is that states’ removal of restrictions on NPs has reduced physicians’ liability to some extent. A 2017 study found that enacting less restrictive scope-of-practice laws for NPs decreased the number of payments made by physicians in NP cases by as much as 31%.
However, the top location for NP payouts remains the physician’s office, not the autonomous NP’s practice, according to the latter NSO report. Plaintiffs sue NPs’ and PAs’ supervising physicians on the basis of legal concepts, such as vicarious liability and respondeat superior. Even if the physician-employer never saw the patient, he or she can be held liable.
Court cases in which supervising physician was found liable
There are plenty of judgments against supervising or collaborating physicians when the NP or PA made the error. Typically, the doctor was faulted for paying little attention to the NP or PA he or she was supposed to supervise.
Dr. Sullivan points to a 2016 case in which a New York jury held a physician 40% liable for a $7 million judgment in a malpractice case involving a PA’s care of a patient in the emergency department. The case is Shajan v. South Nassau Community Hospital in New York.
“The patient presented with nontraumatic leg pain to his lower leg, was diagnosed by the PA with a muscle strain, and discharged without a physician evaluation,” Dr. Sullivan said. The next day, the patient visited an orthopedist who immediately diagnosed compartment syndrome, an emergent condition in which pressure builds up in an affected extremity, damaging the muscles and nerves. “The patient developed irreversible nerve damage and chronic regional pain syndrome,” he said.
A malpractice lawsuit named the PA and the emergency physician he was supposed to be reporting to. Even though the physician had never seen the patient, he had signed off on the PA’s note from a patient’s ED visit. “Testimony during the trial focused on hospital protocols that the supervising physician was supposed to take,” Dr. Sullivan said.
When doctors share fault, they frequently failed to follow the collaborative agreement with the NP or PA. In Collip v. Ratts, a 2015 Indiana case in which the patient died from a drug interaction, the doctor’s certified public accountant stated that the doctor was required to review at least 5% of the NP’s charts every week to evaluate her prescriptive practices.
The doctor admitted that he never reviewed the NP’s charts on a weekly basis. He did conduct some cursory reviews of some of the NP’s notes, and in them he noted concerns for her prescribing practices and suggested she attend a narcotics-prescribing seminar, but he did not follow up to make sure she had done this.
Sometimes the NP or PA who made the mistake may actually be dropped from the lawsuit, leaving the supervising physician fully liable. In these cases, courts reason that a fully engaged supervisor could have prevented the error. In the 2006 case of Husak v. Siegal, the Florida Supreme Court dropped the NP from the case, ruling that the NP had provided the supervising doctor all the information he needed in order to tell her what to do for the patient.
The court noted the physician had failed to look at the chart, even though he was required to do so under his supervisory agreement with the NP. The doctor “could have made the correct diagnosis or referral had he been attentive,” the court said. Therefore, there was “no evidence of independent negligence” by the NP, even though she was the one who had made the incorrect diagnosis that harmed the patient.
When states require an autonomous NP to have a supervisory relationship with a doctor, the supervisor may be unavailable and may fail to designate a substitute. In Texas in January 2019, a 7-year-old girl died of pneumonia after being treated by an NP in an urgent care clinic. The NP had told the parents that the child could safely go home and only needed ibuprofen. The parents brought the girl back home, and she died 15 hours later. The Wattenbargers sued the NP, and the doctor’s supervision was a topic in the trial.
The supervising physician for the NP was out of the country at the time. He said that he had found a substitute, but the substitute doctor testified she had no idea she was designated to be the substitute, according to Niran Al-Agba, MD, a family physician in Silverdale, Wash., who has written on the Texas case. Dr. Al-Agba told this news organization the case appears to have been settled confidentially.
Different standards for expert witnesses
In many states, courts do not allow physicians to testify as expert witnesses in malpractice cases against NPs, arguing that nurses have a different set of standards than doctors have, Dr. Sullivan reported.
These states include Arkansas, Illinois, North Carolina, and New York, according to a report by SEAK Inc., an expert witness training program. The report said most other states allow physician experts in these cases, but they may still require that they have experience with the nursing standard of care.
Dr. Sullivan said some courts are whittling away at the ban on physician experts, and the ban may eventually disappear. He reported that in Oklahoma, which normally upholds the ban, a judge recently allowed a physician-expert to testify in a case involving the death of a 19-year-old woman, Alexus Ochoa, in an ED staffed by an NP. The judge reasoned that Ms. Ochoa’s parents assumed the ED was staffed by physicians and would adhere to medical standards.
Supervision pointers from a physician
Physicians who supervise NPs or PAs say it is important to keep track of their skills and help them sharpen their expertise. Their scope of practice and physicians’ supervisory responsibilities are included in the collaborative agreement.
Arthur Apolinario, MD, a family physician in Clinton, N.C., says his 10-physician practice, which employs six NPs and one PA, works under a collaborative agreement. “The agreement defines each person’s scope of practice. They can’t do certain procedures, such as surgery, and they need extra training before doing certain tasks alone, such as joint injection.
“You have to always figure that if there is a lawsuit against one of them, you as the supervising physician would be named,” said Dr. Apolinario, who is also president of the North Carolina Medical Society. “We try to avert mistakes by meeting regularly with our NPs and PAs and making sure they keep up to date.”
Collaborating with autonomous NPs
Even when NPs operate independently in states that have abolished supervision, physicians may still have some liability if they give NPs advice, Dr. Al-Agba said.
At her Washington state practice, Dr. Al-Agba shares an office with an autonomous NP. “We share overhead and a front desk, but we have separate patients,” Dr. Al-Agba said. “This arrangement works very well for both of us.”
The NP sometimes asks her for advice. When this occurs, Dr. Al-Agba said she always makes sure to see the patient first. “If you don’t actually see the patient, there could be a misunderstanding that could lead to an error,” she said.
Conclusion
Even though NPs now have autonomy in most states, supervising physicians may still be liable for NP malpractice by virtue of being their employers, and physicians in the remaining states are liable for NPs through state law and for PAs in virtually all the states. To determine the supervising physician’s fault, courts often study whether the physician has met the terms of the collaborative agreement.
Physicians can reduce collaborating NPs’ and PAs’ liability by properly training them, by verifying their scope of practice, by making themselves easily available for consultation, and by occasionally seeing their patients. If their NPs and PAs do commit malpractice, supervising physicians may be able to protect themselves from liability by adhering to all requirements of the collaborative agreement.
*Correction, 4/19/2023: An earlier version of this story misstated the name of the AAPA and the states that have ended physician supervision of PAs.
A version of this article first appeared on Medscape.com.
Statins don’t worsen muscle injury from moderately intense exercise
People who are physically active and on statins may have one less potential concern about the drugs. Despite their reputation for causing muscle injury, a study suggests statins won’t worsen the toll that sustained, moderately intensive exercise already takes on patients’ muscles.
Statin therapy in this prospective, controlled study wasn’t seen to aggravate normal muscle fatigue or pain from sustained exercise or adversely affect enzymes or other biomarkers associated with muscle injury.
The findings come from 100 individuals, of whom about two-thirds were on statins, participating in a public, 4-day, long-distance walking event held annually in the Netherlands. Results were published in the Journal of the American College of Cardiology with Neeltje A.E. Allard, MD, Radboud University Medical Center, Nijmegen, the Netherlands, as lead author.
For all of statins’ common use in adults with cardiovascular (CV) risk factors, the drugs are often blamed for causing excessive muscle pain or injury as a side effect. Yet there is a predominance of evidence to the contrary based on meta-analyses and clinical trials, suggesting that the drugs are taking the rap for many entirely unrelated muscle symptoms.
The new findings, from people ranging widely in fitness levels, suggest that “exercise of moderate intensity is feasible and safe” in statin users, that the drugs won’t exacerbate normal muscle symptoms from exercise, Dr. Allard told this news organization.
And that exercise doesn’t have to be on an unusual scale. Regular exercise in statin users can simply be consistent with broader guidelines, say 30 minutes of walking per day, she noted.
The study has such broad applicability, Dr. Allard said, because participants represented the spectrum of the thousands who signed up for the walking event, who varied in age, level of physical fitness, and number of CV risk factors. They included CV patients, the physically fit, “recreational walkers who didn’t really exercise regularly,” and “habitual nonexercisers.”
It enrolled three groups of participants in the Four Days Marches in Nijmegen, which in a typical year attracts tens of thousands of participants who walk up to 30 km, 40 km, or 50 km per day for 4 consecutive days.
They included 35 statin users who walked the event despite muscle symptoms, 34 on statins but without such symptoms, and 31 non–statin-using controls. Their mean ages ranged from 65 to 68 years.
Statin users were overwhelmingly on simvastatin or atorvastatin. The average statin therapy durations were 60 months and 96 months for those with and without symptoms, respectively.
Assessments were performed several days before the event, at baseline, and after the end of walking on days 1, 2, and 3.
Scores for muscle pain on the Brief Pain Inventory were higher at baseline for the symptomatic-on-statins group (P < .001) compared with the other two groups, and went up (P < .001) similarly across the three groups during each of the 3 days, the report notes. Fatigue scores on the Brief Fatigue Inventory followed the same pattern.
All biomarkers of muscle injury or stress were at comparable levels at baseline in the three groups and went up similarly (P < .001) with no significant differences at the end of day 3. Biomarkers included lactate dehydrogenase, creatine kinase, myoglobin, cardiac troponin I, and N-terminal pro-brain natriuretic peptide.
Statin-related reductions in levels of coenzyme Q 10 (CoQ10) have been thought to exacerbate muscle injury, the authors note. But levels of CoQ10 weren’t significantly different across the three groups at any point in the study, and they did not show any significant associations with measures of muscle injury, symptoms, or fatigue.
Patients with statin-associated muscle symptoms (SAMS) often limit physical activity because of muscle pain or weakness, but also “concerns that exercise will exacerbate muscle injury,” an accompanying editorial notes. “Therefore, exercise, a foundation of improving and maintaining cardiometabolic health, is often avoided or limited.”
But the current study, writes Robert S. Rosenson, MD, of Mount Sinai Heart, New York, indeed suggests that “many patients who develop SAMS may engage in a moderately intensive walking program without concern for worsened muscle biomarkers or performance.”
The exercise didn’t seem to improve muscle function in symptomatic statin users, compared with the other groups over the study’s very short follow-up, Dr. Rosenson observes. But “it remains uncertain from this study whether sustained exercise in SAMS patients will effectuate improved metabolic biomarkers or exercise capacity in the long term.”
Dr. Allard is supported by a grant from the Radboud Institute for Health Sciences; the other authors have disclosed no relevant financial relationships. Dr. Rosenson disclosed receiving research funding to his institution from Amgen, Arrowhead, Lilly, Novartis, and Regeneron; consulting fees from Amgen, Arrowhead, Lilly, Lipigon, Novartis, CRISPR Therapeutics, Precision BioSciences, Verve, Ultragenyx Pharmaceutical, and Regeneron; speaking fees from Amgen, Kowa, and Regeneron; and royalties from Wolters Kluwer (UpToDate); and that he holds stock in MediMergent.
A version of this article first appeared on Medscape.com.
People who are physically active and on statins may have one less potential concern about the drugs. Despite their reputation for causing muscle injury, a study suggests statins won’t worsen the toll that sustained, moderately intensive exercise already takes on patients’ muscles.
Statin therapy in this prospective, controlled study wasn’t seen to aggravate normal muscle fatigue or pain from sustained exercise or adversely affect enzymes or other biomarkers associated with muscle injury.
The findings come from 100 individuals, of whom about two-thirds were on statins, participating in a public, 4-day, long-distance walking event held annually in the Netherlands. Results were published in the Journal of the American College of Cardiology with Neeltje A.E. Allard, MD, Radboud University Medical Center, Nijmegen, the Netherlands, as lead author.
For all of statins’ common use in adults with cardiovascular (CV) risk factors, the drugs are often blamed for causing excessive muscle pain or injury as a side effect. Yet there is a predominance of evidence to the contrary based on meta-analyses and clinical trials, suggesting that the drugs are taking the rap for many entirely unrelated muscle symptoms.
The new findings, from people ranging widely in fitness levels, suggest that “exercise of moderate intensity is feasible and safe” in statin users, that the drugs won’t exacerbate normal muscle symptoms from exercise, Dr. Allard told this news organization.
And that exercise doesn’t have to be on an unusual scale. Regular exercise in statin users can simply be consistent with broader guidelines, say 30 minutes of walking per day, she noted.
The study has such broad applicability, Dr. Allard said, because participants represented the spectrum of the thousands who signed up for the walking event, who varied in age, level of physical fitness, and number of CV risk factors. They included CV patients, the physically fit, “recreational walkers who didn’t really exercise regularly,” and “habitual nonexercisers.”
It enrolled three groups of participants in the Four Days Marches in Nijmegen, which in a typical year attracts tens of thousands of participants who walk up to 30 km, 40 km, or 50 km per day for 4 consecutive days.
They included 35 statin users who walked the event despite muscle symptoms, 34 on statins but without such symptoms, and 31 non–statin-using controls. Their mean ages ranged from 65 to 68 years.
Statin users were overwhelmingly on simvastatin or atorvastatin. The average statin therapy durations were 60 months and 96 months for those with and without symptoms, respectively.
Assessments were performed several days before the event, at baseline, and after the end of walking on days 1, 2, and 3.
Scores for muscle pain on the Brief Pain Inventory were higher at baseline for the symptomatic-on-statins group (P < .001) compared with the other two groups, and went up (P < .001) similarly across the three groups during each of the 3 days, the report notes. Fatigue scores on the Brief Fatigue Inventory followed the same pattern.
All biomarkers of muscle injury or stress were at comparable levels at baseline in the three groups and went up similarly (P < .001) with no significant differences at the end of day 3. Biomarkers included lactate dehydrogenase, creatine kinase, myoglobin, cardiac troponin I, and N-terminal pro-brain natriuretic peptide.
Statin-related reductions in levels of coenzyme Q 10 (CoQ10) have been thought to exacerbate muscle injury, the authors note. But levels of CoQ10 weren’t significantly different across the three groups at any point in the study, and they did not show any significant associations with measures of muscle injury, symptoms, or fatigue.
Patients with statin-associated muscle symptoms (SAMS) often limit physical activity because of muscle pain or weakness, but also “concerns that exercise will exacerbate muscle injury,” an accompanying editorial notes. “Therefore, exercise, a foundation of improving and maintaining cardiometabolic health, is often avoided or limited.”
But the current study, writes Robert S. Rosenson, MD, of Mount Sinai Heart, New York, indeed suggests that “many patients who develop SAMS may engage in a moderately intensive walking program without concern for worsened muscle biomarkers or performance.”
The exercise didn’t seem to improve muscle function in symptomatic statin users, compared with the other groups over the study’s very short follow-up, Dr. Rosenson observes. But “it remains uncertain from this study whether sustained exercise in SAMS patients will effectuate improved metabolic biomarkers or exercise capacity in the long term.”
Dr. Allard is supported by a grant from the Radboud Institute for Health Sciences; the other authors have disclosed no relevant financial relationships. Dr. Rosenson disclosed receiving research funding to his institution from Amgen, Arrowhead, Lilly, Novartis, and Regeneron; consulting fees from Amgen, Arrowhead, Lilly, Lipigon, Novartis, CRISPR Therapeutics, Precision BioSciences, Verve, Ultragenyx Pharmaceutical, and Regeneron; speaking fees from Amgen, Kowa, and Regeneron; and royalties from Wolters Kluwer (UpToDate); and that he holds stock in MediMergent.
A version of this article first appeared on Medscape.com.
People who are physically active and on statins may have one less potential concern about the drugs. Despite their reputation for causing muscle injury, a study suggests statins won’t worsen the toll that sustained, moderately intensive exercise already takes on patients’ muscles.
Statin therapy in this prospective, controlled study wasn’t seen to aggravate normal muscle fatigue or pain from sustained exercise or adversely affect enzymes or other biomarkers associated with muscle injury.
The findings come from 100 individuals, of whom about two-thirds were on statins, participating in a public, 4-day, long-distance walking event held annually in the Netherlands. Results were published in the Journal of the American College of Cardiology with Neeltje A.E. Allard, MD, Radboud University Medical Center, Nijmegen, the Netherlands, as lead author.
For all of statins’ common use in adults with cardiovascular (CV) risk factors, the drugs are often blamed for causing excessive muscle pain or injury as a side effect. Yet there is a predominance of evidence to the contrary based on meta-analyses and clinical trials, suggesting that the drugs are taking the rap for many entirely unrelated muscle symptoms.
The new findings, from people ranging widely in fitness levels, suggest that “exercise of moderate intensity is feasible and safe” in statin users, that the drugs won’t exacerbate normal muscle symptoms from exercise, Dr. Allard told this news organization.
And that exercise doesn’t have to be on an unusual scale. Regular exercise in statin users can simply be consistent with broader guidelines, say 30 minutes of walking per day, she noted.
The study has such broad applicability, Dr. Allard said, because participants represented the spectrum of the thousands who signed up for the walking event, who varied in age, level of physical fitness, and number of CV risk factors. They included CV patients, the physically fit, “recreational walkers who didn’t really exercise regularly,” and “habitual nonexercisers.”
It enrolled three groups of participants in the Four Days Marches in Nijmegen, which in a typical year attracts tens of thousands of participants who walk up to 30 km, 40 km, or 50 km per day for 4 consecutive days.
They included 35 statin users who walked the event despite muscle symptoms, 34 on statins but without such symptoms, and 31 non–statin-using controls. Their mean ages ranged from 65 to 68 years.
Statin users were overwhelmingly on simvastatin or atorvastatin. The average statin therapy durations were 60 months and 96 months for those with and without symptoms, respectively.
Assessments were performed several days before the event, at baseline, and after the end of walking on days 1, 2, and 3.
Scores for muscle pain on the Brief Pain Inventory were higher at baseline for the symptomatic-on-statins group (P < .001) compared with the other two groups, and went up (P < .001) similarly across the three groups during each of the 3 days, the report notes. Fatigue scores on the Brief Fatigue Inventory followed the same pattern.
All biomarkers of muscle injury or stress were at comparable levels at baseline in the three groups and went up similarly (P < .001) with no significant differences at the end of day 3. Biomarkers included lactate dehydrogenase, creatine kinase, myoglobin, cardiac troponin I, and N-terminal pro-brain natriuretic peptide.
Statin-related reductions in levels of coenzyme Q 10 (CoQ10) have been thought to exacerbate muscle injury, the authors note. But levels of CoQ10 weren’t significantly different across the three groups at any point in the study, and they did not show any significant associations with measures of muscle injury, symptoms, or fatigue.
Patients with statin-associated muscle symptoms (SAMS) often limit physical activity because of muscle pain or weakness, but also “concerns that exercise will exacerbate muscle injury,” an accompanying editorial notes. “Therefore, exercise, a foundation of improving and maintaining cardiometabolic health, is often avoided or limited.”
But the current study, writes Robert S. Rosenson, MD, of Mount Sinai Heart, New York, indeed suggests that “many patients who develop SAMS may engage in a moderately intensive walking program without concern for worsened muscle biomarkers or performance.”
The exercise didn’t seem to improve muscle function in symptomatic statin users, compared with the other groups over the study’s very short follow-up, Dr. Rosenson observes. But “it remains uncertain from this study whether sustained exercise in SAMS patients will effectuate improved metabolic biomarkers or exercise capacity in the long term.”
Dr. Allard is supported by a grant from the Radboud Institute for Health Sciences; the other authors have disclosed no relevant financial relationships. Dr. Rosenson disclosed receiving research funding to his institution from Amgen, Arrowhead, Lilly, Novartis, and Regeneron; consulting fees from Amgen, Arrowhead, Lilly, Lipigon, Novartis, CRISPR Therapeutics, Precision BioSciences, Verve, Ultragenyx Pharmaceutical, and Regeneron; speaking fees from Amgen, Kowa, and Regeneron; and royalties from Wolters Kluwer (UpToDate); and that he holds stock in MediMergent.
A version of this article first appeared on Medscape.com.
FROM THE JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
High salt intake linked to atherosclerosis even with normal BP
A high salt intake is an important risk factor for atherosclerosis, even in the absence of hypertension, a large study from Sweden concludes.
The study, including more than 10,000 individuals between the ages of 50 and 64 years from the Swedish Cardiopulmonary bioImage Study, showed a significant link between dietary salt intake and the risk for atherosclerotic lesions in the coronary and carotid arteries, even in participants with normal blood pressure and without known cardiovascular disease.
The finding suggests that salt could be a damaging factor in its own right before the development of hypertension, the authors write. The results were published online in European Heart Journal Open.
It has been known for a long time that salt is linked to hypertension, but the role that salt plays in atherosclerosis has not been examined, first author Jonas Wuopio, MD, Karolinska Institutet, Huddinge, and Clinical Research Center, Falun, Uppsala University, both in Sweden, told this news organization.
“Hardly anyone looks at changes in the arteries’ calcification, the atherosclerotic plaques and the association with salt intake,” Dr. Wuopio said. “We had this exclusive data from our cohort, so we wanted to use it to close this knowledge gap.”
The analysis included 10,788 adults aged 50-64 years, (average age, 58 years; 52% women) who underwent a coronary computed tomography angiography (CCTA) scan. The estimated 24-hour sodium excretion was used to measure sodium intake.
CCTA was used to obtain 3-D images of the coronary arteries to measure the degree of coronary artery calcium as well as detect stenosis in the coronary arteries. Participants also had an ultrasound of the carotid arteries.
After adjusting for age, sex, and study site (the study was done at Uppsala and Malmö, Sweden), the researchers found that rising salt consumption was linked with increasing atherosclerosis in a linear fashion in both the coronary and carotid arteries.
Each 1,000 mg rise in sodium excretion was associated with a 9% increased occurrence of carotid plaque (odds ratio, 1.09; P < .001; confidence interval, 1.06-1.12), a higher coronary artery calcium score (OR, 1.16; P < .001; CI, 1.12-1.19), and a 17% increased occurrence of coronary artery stenosis (OR, 1.17; P < .001; CI, 1.13-1.20).
The association was abolished, though, after adjusting for blood pressure, they note. Their “interpretation is that the increase in blood pressure from sodium intake, even below the level that currently defines arterial hypertension, is an important factor that mediates the interplay between salt intake and the atherosclerotic process,” they write. “As we observed an association in individuals with normal blood pressure, one possible explanation for these findings is that the detrimental pathological processes begin already prior to the development of hypertension,” they note, although they caution that no causal relationships can be gleaned from this cross-sectional study.
They also reported no sign of a “J-curve”; participants with the lowest levels of sodium excretion had the lowest occurrence of both coronary and carotid atherosclerosis, which contradicts findings in some studies that found very low sodium linked to increased cardiovascular disease–related events.
“There have been some controversies among researchers regarding very low intake, where some say very low salt intake can increase the risk of cardiovascular disease, but we could not find this in this study,” Dr. Wuopio said.
“Our study is confirming that excess salt is not a good thing, but the fact that it is linked to atherosclerosis, even in the absence of hypertension, was a bit of a surprise,” he said.
“I will be telling my patients to follow the advice given by the World Health Organization and other medical societies, to limit your intake of salt to approximately 1 teaspoon, even if your blood pressure is normal.”
Time to scrutinize salt’s role in atherosclerosis
In an accompanying editorial, Maciej Banach, MD, Medical University of Lodz, and Stanislaw Surma, MD, Faculty of Medical Sciences in Katowice, both in Poland, write that excessive dietary salt intake is a well-documented cardiovascular risk factor, and that the association is explained in most studies by increased blood pressure.
“We should look more extensively on the role of dietary salt, as it affects many pathological mechanisms, by which, especially with the coexistence of other risk factors, atherosclerosis may progress very fast,” they write.
“The results of the study shed new light on the direct relationship between excessive dietary salt intake and the risk of ASCVD [atherosclerotic cardiovascular disease], indicating that salt intake might be a risk factor for atherosclerosis even prior to the development of hypertension,” they conclude.
Confirmatory and novel
“Nobody questions the fact that high blood pressure is a powerful risk factor for atherosclerotic disease, but not all studies have suggested that, at least at significantly higher levels of sodium intake, that high salt intake tracks with risk for atherosclerotic disease,” Alon Gitig, MD, assistant professor and director of cardiology, Mount Sinai Doctors-Westchester, Yonkers, New York, told this news organization.
Most of the studies of salt intake in the diet are based on patient self-reports via food frequency questionnaires, which can give a general idea of salt intake, but are often not totally accurate, Dr. Gitig said.
“Here, they measured sodium in the urine and estimated the 24-hour salt intake from that, which is slightly novel,” he said.
Everybody knows that high blood pressure is associated with future cardiovascular disease risk, but what many don’t realize is that that risk starts to increase slightly but significantly above a blood pressure that is already in the range of 115 mm Hg/75 mm Hg, he said.
“The lower you can get your blood pressure down, to around 115-120, the lower your risk for cardiovascular disease,” Dr. Gitig said.
It is possible for most people to lower blood pressure through attention to diet, restricting sodium, performing cardio and weight training exercises, and maintaining a healthy weight, he said.
An example of a cardiovascular health diet is the Dietary Approaches to Stop Hypertension (DASH) diet.
“The DASH diet, consisting of 9 servings of fruits and vegetables a day with few refined carbs, flour and sugar, has been shown in a randomized trial to dramatically reduce blood pressure. There are two reasons for that. One is that the fruits and vegetables have many phytonutrients that are good for arteries. The other is that a large proportion of U.S. adults have insulin resistance, which leads to high blood pressure.
“The more fruits and vegetables and healthy animal products, and less sugar and flour, the more you are going to improve your insulin resistance, so you can bring your blood pressure down that way,” Dr. Gitig said.
The study was funded by the Swedish Heart-Lung Foundation, the Knut and Alice Wallenberg Foundation, the Swedish Research Council and Vinnova (Sweden’s Innovation agency), the University of Gothenburg and Sahlgrenska University Hospital, the Karolinska Institutet and Stockholm County Council, the Linköping University and University Hospital, the Lund University and Skane University Hospital, the Umea University and University Hospital, and the Uppsala University and University Hospital. Dr. Wuopio and Dr. Gitig report no relevant financial relationships. Dr. Banach reports financial relationships with Adamed, Amgen, Daichii Sankyo, Esperion, KrKa, NewAmsterdam, Polpharma, Novartis, Pfizer, Sanofi, Teva, Viatris, and CMDO at Longevity Group (LU). Dr. Surma reports a financial relationship with Sanofi and Novartis.
A version of this article first appeared on Medscape.com.
A high salt intake is an important risk factor for atherosclerosis, even in the absence of hypertension, a large study from Sweden concludes.
The study, including more than 10,000 individuals between the ages of 50 and 64 years from the Swedish Cardiopulmonary bioImage Study, showed a significant link between dietary salt intake and the risk for atherosclerotic lesions in the coronary and carotid arteries, even in participants with normal blood pressure and without known cardiovascular disease.
The finding suggests that salt could be a damaging factor in its own right before the development of hypertension, the authors write. The results were published online in European Heart Journal Open.
It has been known for a long time that salt is linked to hypertension, but the role that salt plays in atherosclerosis has not been examined, first author Jonas Wuopio, MD, Karolinska Institutet, Huddinge, and Clinical Research Center, Falun, Uppsala University, both in Sweden, told this news organization.
“Hardly anyone looks at changes in the arteries’ calcification, the atherosclerotic plaques and the association with salt intake,” Dr. Wuopio said. “We had this exclusive data from our cohort, so we wanted to use it to close this knowledge gap.”
The analysis included 10,788 adults aged 50-64 years, (average age, 58 years; 52% women) who underwent a coronary computed tomography angiography (CCTA) scan. The estimated 24-hour sodium excretion was used to measure sodium intake.
CCTA was used to obtain 3-D images of the coronary arteries to measure the degree of coronary artery calcium as well as detect stenosis in the coronary arteries. Participants also had an ultrasound of the carotid arteries.
After adjusting for age, sex, and study site (the study was done at Uppsala and Malmö, Sweden), the researchers found that rising salt consumption was linked with increasing atherosclerosis in a linear fashion in both the coronary and carotid arteries.
Each 1,000 mg rise in sodium excretion was associated with a 9% increased occurrence of carotid plaque (odds ratio, 1.09; P < .001; confidence interval, 1.06-1.12), a higher coronary artery calcium score (OR, 1.16; P < .001; CI, 1.12-1.19), and a 17% increased occurrence of coronary artery stenosis (OR, 1.17; P < .001; CI, 1.13-1.20).
The association was abolished, though, after adjusting for blood pressure, they note. Their “interpretation is that the increase in blood pressure from sodium intake, even below the level that currently defines arterial hypertension, is an important factor that mediates the interplay between salt intake and the atherosclerotic process,” they write. “As we observed an association in individuals with normal blood pressure, one possible explanation for these findings is that the detrimental pathological processes begin already prior to the development of hypertension,” they note, although they caution that no causal relationships can be gleaned from this cross-sectional study.
They also reported no sign of a “J-curve”; participants with the lowest levels of sodium excretion had the lowest occurrence of both coronary and carotid atherosclerosis, which contradicts findings in some studies that found very low sodium linked to increased cardiovascular disease–related events.
“There have been some controversies among researchers regarding very low intake, where some say very low salt intake can increase the risk of cardiovascular disease, but we could not find this in this study,” Dr. Wuopio said.
“Our study is confirming that excess salt is not a good thing, but the fact that it is linked to atherosclerosis, even in the absence of hypertension, was a bit of a surprise,” he said.
“I will be telling my patients to follow the advice given by the World Health Organization and other medical societies, to limit your intake of salt to approximately 1 teaspoon, even if your blood pressure is normal.”
Time to scrutinize salt’s role in atherosclerosis
In an accompanying editorial, Maciej Banach, MD, Medical University of Lodz, and Stanislaw Surma, MD, Faculty of Medical Sciences in Katowice, both in Poland, write that excessive dietary salt intake is a well-documented cardiovascular risk factor, and that the association is explained in most studies by increased blood pressure.
“We should look more extensively on the role of dietary salt, as it affects many pathological mechanisms, by which, especially with the coexistence of other risk factors, atherosclerosis may progress very fast,” they write.
“The results of the study shed new light on the direct relationship between excessive dietary salt intake and the risk of ASCVD [atherosclerotic cardiovascular disease], indicating that salt intake might be a risk factor for atherosclerosis even prior to the development of hypertension,” they conclude.
Confirmatory and novel
“Nobody questions the fact that high blood pressure is a powerful risk factor for atherosclerotic disease, but not all studies have suggested that, at least at significantly higher levels of sodium intake, that high salt intake tracks with risk for atherosclerotic disease,” Alon Gitig, MD, assistant professor and director of cardiology, Mount Sinai Doctors-Westchester, Yonkers, New York, told this news organization.
Most of the studies of salt intake in the diet are based on patient self-reports via food frequency questionnaires, which can give a general idea of salt intake, but are often not totally accurate, Dr. Gitig said.
“Here, they measured sodium in the urine and estimated the 24-hour salt intake from that, which is slightly novel,” he said.
Everybody knows that high blood pressure is associated with future cardiovascular disease risk, but what many don’t realize is that that risk starts to increase slightly but significantly above a blood pressure that is already in the range of 115 mm Hg/75 mm Hg, he said.
“The lower you can get your blood pressure down, to around 115-120, the lower your risk for cardiovascular disease,” Dr. Gitig said.
It is possible for most people to lower blood pressure through attention to diet, restricting sodium, performing cardio and weight training exercises, and maintaining a healthy weight, he said.
An example of a cardiovascular health diet is the Dietary Approaches to Stop Hypertension (DASH) diet.
“The DASH diet, consisting of 9 servings of fruits and vegetables a day with few refined carbs, flour and sugar, has been shown in a randomized trial to dramatically reduce blood pressure. There are two reasons for that. One is that the fruits and vegetables have many phytonutrients that are good for arteries. The other is that a large proportion of U.S. adults have insulin resistance, which leads to high blood pressure.
“The more fruits and vegetables and healthy animal products, and less sugar and flour, the more you are going to improve your insulin resistance, so you can bring your blood pressure down that way,” Dr. Gitig said.
The study was funded by the Swedish Heart-Lung Foundation, the Knut and Alice Wallenberg Foundation, the Swedish Research Council and Vinnova (Sweden’s Innovation agency), the University of Gothenburg and Sahlgrenska University Hospital, the Karolinska Institutet and Stockholm County Council, the Linköping University and University Hospital, the Lund University and Skane University Hospital, the Umea University and University Hospital, and the Uppsala University and University Hospital. Dr. Wuopio and Dr. Gitig report no relevant financial relationships. Dr. Banach reports financial relationships with Adamed, Amgen, Daichii Sankyo, Esperion, KrKa, NewAmsterdam, Polpharma, Novartis, Pfizer, Sanofi, Teva, Viatris, and CMDO at Longevity Group (LU). Dr. Surma reports a financial relationship with Sanofi and Novartis.
A version of this article first appeared on Medscape.com.
A high salt intake is an important risk factor for atherosclerosis, even in the absence of hypertension, a large study from Sweden concludes.
The study, including more than 10,000 individuals between the ages of 50 and 64 years from the Swedish Cardiopulmonary bioImage Study, showed a significant link between dietary salt intake and the risk for atherosclerotic lesions in the coronary and carotid arteries, even in participants with normal blood pressure and without known cardiovascular disease.
The finding suggests that salt could be a damaging factor in its own right before the development of hypertension, the authors write. The results were published online in European Heart Journal Open.
It has been known for a long time that salt is linked to hypertension, but the role that salt plays in atherosclerosis has not been examined, first author Jonas Wuopio, MD, Karolinska Institutet, Huddinge, and Clinical Research Center, Falun, Uppsala University, both in Sweden, told this news organization.
“Hardly anyone looks at changes in the arteries’ calcification, the atherosclerotic plaques and the association with salt intake,” Dr. Wuopio said. “We had this exclusive data from our cohort, so we wanted to use it to close this knowledge gap.”
The analysis included 10,788 adults aged 50-64 years, (average age, 58 years; 52% women) who underwent a coronary computed tomography angiography (CCTA) scan. The estimated 24-hour sodium excretion was used to measure sodium intake.
CCTA was used to obtain 3-D images of the coronary arteries to measure the degree of coronary artery calcium as well as detect stenosis in the coronary arteries. Participants also had an ultrasound of the carotid arteries.
After adjusting for age, sex, and study site (the study was done at Uppsala and Malmö, Sweden), the researchers found that rising salt consumption was linked with increasing atherosclerosis in a linear fashion in both the coronary and carotid arteries.
Each 1,000 mg rise in sodium excretion was associated with a 9% increased occurrence of carotid plaque (odds ratio, 1.09; P < .001; confidence interval, 1.06-1.12), a higher coronary artery calcium score (OR, 1.16; P < .001; CI, 1.12-1.19), and a 17% increased occurrence of coronary artery stenosis (OR, 1.17; P < .001; CI, 1.13-1.20).
The association was abolished, though, after adjusting for blood pressure, they note. Their “interpretation is that the increase in blood pressure from sodium intake, even below the level that currently defines arterial hypertension, is an important factor that mediates the interplay between salt intake and the atherosclerotic process,” they write. “As we observed an association in individuals with normal blood pressure, one possible explanation for these findings is that the detrimental pathological processes begin already prior to the development of hypertension,” they note, although they caution that no causal relationships can be gleaned from this cross-sectional study.
They also reported no sign of a “J-curve”; participants with the lowest levels of sodium excretion had the lowest occurrence of both coronary and carotid atherosclerosis, which contradicts findings in some studies that found very low sodium linked to increased cardiovascular disease–related events.
“There have been some controversies among researchers regarding very low intake, where some say very low salt intake can increase the risk of cardiovascular disease, but we could not find this in this study,” Dr. Wuopio said.
“Our study is confirming that excess salt is not a good thing, but the fact that it is linked to atherosclerosis, even in the absence of hypertension, was a bit of a surprise,” he said.
“I will be telling my patients to follow the advice given by the World Health Organization and other medical societies, to limit your intake of salt to approximately 1 teaspoon, even if your blood pressure is normal.”
Time to scrutinize salt’s role in atherosclerosis
In an accompanying editorial, Maciej Banach, MD, Medical University of Lodz, and Stanislaw Surma, MD, Faculty of Medical Sciences in Katowice, both in Poland, write that excessive dietary salt intake is a well-documented cardiovascular risk factor, and that the association is explained in most studies by increased blood pressure.
“We should look more extensively on the role of dietary salt, as it affects many pathological mechanisms, by which, especially with the coexistence of other risk factors, atherosclerosis may progress very fast,” they write.
“The results of the study shed new light on the direct relationship between excessive dietary salt intake and the risk of ASCVD [atherosclerotic cardiovascular disease], indicating that salt intake might be a risk factor for atherosclerosis even prior to the development of hypertension,” they conclude.
Confirmatory and novel
“Nobody questions the fact that high blood pressure is a powerful risk factor for atherosclerotic disease, but not all studies have suggested that, at least at significantly higher levels of sodium intake, that high salt intake tracks with risk for atherosclerotic disease,” Alon Gitig, MD, assistant professor and director of cardiology, Mount Sinai Doctors-Westchester, Yonkers, New York, told this news organization.
Most of the studies of salt intake in the diet are based on patient self-reports via food frequency questionnaires, which can give a general idea of salt intake, but are often not totally accurate, Dr. Gitig said.
“Here, they measured sodium in the urine and estimated the 24-hour salt intake from that, which is slightly novel,” he said.
Everybody knows that high blood pressure is associated with future cardiovascular disease risk, but what many don’t realize is that that risk starts to increase slightly but significantly above a blood pressure that is already in the range of 115 mm Hg/75 mm Hg, he said.
“The lower you can get your blood pressure down, to around 115-120, the lower your risk for cardiovascular disease,” Dr. Gitig said.
It is possible for most people to lower blood pressure through attention to diet, restricting sodium, performing cardio and weight training exercises, and maintaining a healthy weight, he said.
An example of a cardiovascular health diet is the Dietary Approaches to Stop Hypertension (DASH) diet.
“The DASH diet, consisting of 9 servings of fruits and vegetables a day with few refined carbs, flour and sugar, has been shown in a randomized trial to dramatically reduce blood pressure. There are two reasons for that. One is that the fruits and vegetables have many phytonutrients that are good for arteries. The other is that a large proportion of U.S. adults have insulin resistance, which leads to high blood pressure.
“The more fruits and vegetables and healthy animal products, and less sugar and flour, the more you are going to improve your insulin resistance, so you can bring your blood pressure down that way,” Dr. Gitig said.
The study was funded by the Swedish Heart-Lung Foundation, the Knut and Alice Wallenberg Foundation, the Swedish Research Council and Vinnova (Sweden’s Innovation agency), the University of Gothenburg and Sahlgrenska University Hospital, the Karolinska Institutet and Stockholm County Council, the Linköping University and University Hospital, the Lund University and Skane University Hospital, the Umea University and University Hospital, and the Uppsala University and University Hospital. Dr. Wuopio and Dr. Gitig report no relevant financial relationships. Dr. Banach reports financial relationships with Adamed, Amgen, Daichii Sankyo, Esperion, KrKa, NewAmsterdam, Polpharma, Novartis, Pfizer, Sanofi, Teva, Viatris, and CMDO at Longevity Group (LU). Dr. Surma reports a financial relationship with Sanofi and Novartis.
A version of this article first appeared on Medscape.com.
Lack of food for thought: Starve a bacterium, feed an infection
A whole new, tiny level of hangry
Ever been so hungry that everything just got on your nerves? Maybe you feel a little snappy right now? Like you’ll just lash out unless you get something to eat? Been there. And so have bacteria.
New research shows that some bacteria go into a full-on Hulk smash if they’re not getting the nutrients they need by releasing toxins into the body. Sounds like a bacterial temper tantrum.
Even though two cells may be genetically identical, they don’t always behave the same in a bacterial community. Some do their job and stay in line, but some evil twins rage out and make people sick by releasing toxins into the environment, Adam Rosenthal, PhD, of the University of North Carolina and his colleagues discovered.
To figure out why some cells were all business as usual while others were not, the investigators looked at Clostridium perfringens, a bacterium found in the intestines of humans and other vertebrates. When the C. perfringens cells were fed a little acetate to munch on, the hangry cells calmed down faster than a kid with a bag of fruit snacks, reducing toxin levels. Some cells even disappeared, falling in line with their model-citizen counterparts.
So what does this really mean? More research, duh. Now that we know nutrients play a role in toxicity, it may open the door to finding a way to fight against antibiotic resistance in humans and reduce antibiotic use in the food industry.
So think to yourself. Are you bothered for no reason? Getting a little testy with your friends and coworkers? Maybe you just haven’t eaten in a while. You’re literally not alone. Even a single-cell organism can behave based on its hunger levels.
Now go have a snack. Your bacteria are getting restless.
The very hangry iguana?
Imagine yourself on a warm, sunny tropical beach. You are enjoying a piece of cake as you take in the slow beat of the waves lapping against the shore. Life is as good as it could be.
Then you feel a presence nearby. Hostility. Hunger. A set of feral, covetous eyes in the nearby jungle. A reptilian beast stalks you, and its all-encompassing sweet tooth desires your cake.
Wait, hold on, what?
As an unfortunate 3-year-old on vacation in Costa Rica found out, there’s at least one iguana in the world out there with a taste for sugar (better than a taste for blood, we suppose).
While out on the beach, the lizard darted out of nowhere, bit the girl on the back of the hand, and stole her cake. Still not the worst party guest ever. The child was taken to a local clinic, where the wound was cleaned and a 5-day antibiotic treatment (lizards carry salmonella) was provided. Things seemed fine, and the girl returned home without incident.
But of course, that’s not the end of the story. Five months later, the girl’s parents noticed a red bump at the wound site. Over the next 3 months, the surrounding skin grew red and painful. A trip to the hospital in California revealed that she had a ganglion cyst and a discharge of pus. Turns out our cake-obsessed lizard friend did give the little girl a gift: the first known human case of Mycobacterium marinum infection following an iguana bite on record.
M. marinum, which causes a disease similar to tuberculosis, typically infects fish but can infect humans if skin wounds are exposed to contaminated water. It’s also resistant to most antibiotics, which is why the first round didn’t clear up the infection. A second round of more-potent antibiotics seems to be working well.
So, to sum up, this poor child got bitten by a lizard, had her cake stolen, and contracted a rare illness in exchange. For a 3-year-old, that’s gotta be in the top-10 worst days ever. Unless, of course, we’re actually living in the Marvel universe (sorry, multiverse at this point). Then we’re totally going to see the emergence of the new superhero Iguana Girl in 15 years or so. Keep your eyes open.
No allergies? Let them give up cake
Allergy season is already here – starting earlier every year, it seems – and many people are not happy about it. So unhappy, actually, that there’s a list of things they would be willing to give up for a year to get rid of their of allergies, according to a survey conducted by OnePoll on behalf of Flonase.
Nearly 40% of 2,000 respondents with allergies would go a year without eating cake or chocolate or playing video games in exchange for allergy-free status, the survey results show. Almost as many would forgo coffee (38%) or pizza (37%) for a year, while 36% would stay off social media and 31% would take a pay cut or give up their smartphones, the Independent reported.
More than half of the allergic Americans – 54%, to be exact – who were polled this past winter – Feb. 24 to March 1, to be exact – consider allergy symptoms to be the most frustrating part of the spring. Annoying things that were less frustrating to the group included mosquitoes (41%), filing tax returns (38%), and daylight savings time (37%).
The Trump arraignment circus, of course, occurred too late to make the list, as did the big “We’re going back to the office! No wait, we’re closing the office forever!” email extravaganza and emotional roller coaster. That second one, however, did not get nearly as much media coverage.
A whole new, tiny level of hangry
Ever been so hungry that everything just got on your nerves? Maybe you feel a little snappy right now? Like you’ll just lash out unless you get something to eat? Been there. And so have bacteria.
New research shows that some bacteria go into a full-on Hulk smash if they’re not getting the nutrients they need by releasing toxins into the body. Sounds like a bacterial temper tantrum.
Even though two cells may be genetically identical, they don’t always behave the same in a bacterial community. Some do their job and stay in line, but some evil twins rage out and make people sick by releasing toxins into the environment, Adam Rosenthal, PhD, of the University of North Carolina and his colleagues discovered.
To figure out why some cells were all business as usual while others were not, the investigators looked at Clostridium perfringens, a bacterium found in the intestines of humans and other vertebrates. When the C. perfringens cells were fed a little acetate to munch on, the hangry cells calmed down faster than a kid with a bag of fruit snacks, reducing toxin levels. Some cells even disappeared, falling in line with their model-citizen counterparts.
So what does this really mean? More research, duh. Now that we know nutrients play a role in toxicity, it may open the door to finding a way to fight against antibiotic resistance in humans and reduce antibiotic use in the food industry.
So think to yourself. Are you bothered for no reason? Getting a little testy with your friends and coworkers? Maybe you just haven’t eaten in a while. You’re literally not alone. Even a single-cell organism can behave based on its hunger levels.
Now go have a snack. Your bacteria are getting restless.
The very hangry iguana?
Imagine yourself on a warm, sunny tropical beach. You are enjoying a piece of cake as you take in the slow beat of the waves lapping against the shore. Life is as good as it could be.
Then you feel a presence nearby. Hostility. Hunger. A set of feral, covetous eyes in the nearby jungle. A reptilian beast stalks you, and its all-encompassing sweet tooth desires your cake.
Wait, hold on, what?
As an unfortunate 3-year-old on vacation in Costa Rica found out, there’s at least one iguana in the world out there with a taste for sugar (better than a taste for blood, we suppose).
While out on the beach, the lizard darted out of nowhere, bit the girl on the back of the hand, and stole her cake. Still not the worst party guest ever. The child was taken to a local clinic, where the wound was cleaned and a 5-day antibiotic treatment (lizards carry salmonella) was provided. Things seemed fine, and the girl returned home without incident.
But of course, that’s not the end of the story. Five months later, the girl’s parents noticed a red bump at the wound site. Over the next 3 months, the surrounding skin grew red and painful. A trip to the hospital in California revealed that she had a ganglion cyst and a discharge of pus. Turns out our cake-obsessed lizard friend did give the little girl a gift: the first known human case of Mycobacterium marinum infection following an iguana bite on record.
M. marinum, which causes a disease similar to tuberculosis, typically infects fish but can infect humans if skin wounds are exposed to contaminated water. It’s also resistant to most antibiotics, which is why the first round didn’t clear up the infection. A second round of more-potent antibiotics seems to be working well.
So, to sum up, this poor child got bitten by a lizard, had her cake stolen, and contracted a rare illness in exchange. For a 3-year-old, that’s gotta be in the top-10 worst days ever. Unless, of course, we’re actually living in the Marvel universe (sorry, multiverse at this point). Then we’re totally going to see the emergence of the new superhero Iguana Girl in 15 years or so. Keep your eyes open.
No allergies? Let them give up cake
Allergy season is already here – starting earlier every year, it seems – and many people are not happy about it. So unhappy, actually, that there’s a list of things they would be willing to give up for a year to get rid of their of allergies, according to a survey conducted by OnePoll on behalf of Flonase.
Nearly 40% of 2,000 respondents with allergies would go a year without eating cake or chocolate or playing video games in exchange for allergy-free status, the survey results show. Almost as many would forgo coffee (38%) or pizza (37%) for a year, while 36% would stay off social media and 31% would take a pay cut or give up their smartphones, the Independent reported.
More than half of the allergic Americans – 54%, to be exact – who were polled this past winter – Feb. 24 to March 1, to be exact – consider allergy symptoms to be the most frustrating part of the spring. Annoying things that were less frustrating to the group included mosquitoes (41%), filing tax returns (38%), and daylight savings time (37%).
The Trump arraignment circus, of course, occurred too late to make the list, as did the big “We’re going back to the office! No wait, we’re closing the office forever!” email extravaganza and emotional roller coaster. That second one, however, did not get nearly as much media coverage.
A whole new, tiny level of hangry
Ever been so hungry that everything just got on your nerves? Maybe you feel a little snappy right now? Like you’ll just lash out unless you get something to eat? Been there. And so have bacteria.
New research shows that some bacteria go into a full-on Hulk smash if they’re not getting the nutrients they need by releasing toxins into the body. Sounds like a bacterial temper tantrum.
Even though two cells may be genetically identical, they don’t always behave the same in a bacterial community. Some do their job and stay in line, but some evil twins rage out and make people sick by releasing toxins into the environment, Adam Rosenthal, PhD, of the University of North Carolina and his colleagues discovered.
To figure out why some cells were all business as usual while others were not, the investigators looked at Clostridium perfringens, a bacterium found in the intestines of humans and other vertebrates. When the C. perfringens cells were fed a little acetate to munch on, the hangry cells calmed down faster than a kid with a bag of fruit snacks, reducing toxin levels. Some cells even disappeared, falling in line with their model-citizen counterparts.
So what does this really mean? More research, duh. Now that we know nutrients play a role in toxicity, it may open the door to finding a way to fight against antibiotic resistance in humans and reduce antibiotic use in the food industry.
So think to yourself. Are you bothered for no reason? Getting a little testy with your friends and coworkers? Maybe you just haven’t eaten in a while. You’re literally not alone. Even a single-cell organism can behave based on its hunger levels.
Now go have a snack. Your bacteria are getting restless.
The very hangry iguana?
Imagine yourself on a warm, sunny tropical beach. You are enjoying a piece of cake as you take in the slow beat of the waves lapping against the shore. Life is as good as it could be.
Then you feel a presence nearby. Hostility. Hunger. A set of feral, covetous eyes in the nearby jungle. A reptilian beast stalks you, and its all-encompassing sweet tooth desires your cake.
Wait, hold on, what?
As an unfortunate 3-year-old on vacation in Costa Rica found out, there’s at least one iguana in the world out there with a taste for sugar (better than a taste for blood, we suppose).
While out on the beach, the lizard darted out of nowhere, bit the girl on the back of the hand, and stole her cake. Still not the worst party guest ever. The child was taken to a local clinic, where the wound was cleaned and a 5-day antibiotic treatment (lizards carry salmonella) was provided. Things seemed fine, and the girl returned home without incident.
But of course, that’s not the end of the story. Five months later, the girl’s parents noticed a red bump at the wound site. Over the next 3 months, the surrounding skin grew red and painful. A trip to the hospital in California revealed that she had a ganglion cyst and a discharge of pus. Turns out our cake-obsessed lizard friend did give the little girl a gift: the first known human case of Mycobacterium marinum infection following an iguana bite on record.
M. marinum, which causes a disease similar to tuberculosis, typically infects fish but can infect humans if skin wounds are exposed to contaminated water. It’s also resistant to most antibiotics, which is why the first round didn’t clear up the infection. A second round of more-potent antibiotics seems to be working well.
So, to sum up, this poor child got bitten by a lizard, had her cake stolen, and contracted a rare illness in exchange. For a 3-year-old, that’s gotta be in the top-10 worst days ever. Unless, of course, we’re actually living in the Marvel universe (sorry, multiverse at this point). Then we’re totally going to see the emergence of the new superhero Iguana Girl in 15 years or so. Keep your eyes open.
No allergies? Let them give up cake
Allergy season is already here – starting earlier every year, it seems – and many people are not happy about it. So unhappy, actually, that there’s a list of things they would be willing to give up for a year to get rid of their of allergies, according to a survey conducted by OnePoll on behalf of Flonase.
Nearly 40% of 2,000 respondents with allergies would go a year without eating cake or chocolate or playing video games in exchange for allergy-free status, the survey results show. Almost as many would forgo coffee (38%) or pizza (37%) for a year, while 36% would stay off social media and 31% would take a pay cut or give up their smartphones, the Independent reported.
More than half of the allergic Americans – 54%, to be exact – who were polled this past winter – Feb. 24 to March 1, to be exact – consider allergy symptoms to be the most frustrating part of the spring. Annoying things that were less frustrating to the group included mosquitoes (41%), filing tax returns (38%), and daylight savings time (37%).
The Trump arraignment circus, of course, occurred too late to make the list, as did the big “We’re going back to the office! No wait, we’re closing the office forever!” email extravaganza and emotional roller coaster. That second one, however, did not get nearly as much media coverage.
New update on left atrial appendage closure recommendations
An updated consensus statement on transcatheter left atrial appendage closure (LAAC) has put a newfound focus on patient selection for the procedure, specifically recommending that the procedure is appropriate for patients with nonvalvular atrial fibrillation who have risk for thromboembolism, aren’t well suited for direct oral anticoagulants (DOACs) and have a good chance of living for at least another year.
The statement, published online in the Journal of the Society for Cardiovascular Angiography & Interventions, also makes recommendations for how much experience operators should have, how many procedures they should perform to keep their skills up, and when and how to use imaging and prescribe DOACs, among other suggestions.
The statement represents the first updated guidance for LAAC since 2015. “Since then this field has really expanded and evolved,” writing group chair Jacqueline Saw, MD, said in an interview. “For instance, the indications are more matured and specific, and the procedural technical steps have matured. Imaging has also advanced, there’s more understanding about postprocedural care and there are also new devices that have been approved.”
Dr. Saw, an interventional cardiologist at Vancouver General Hospital and St. Paul’s Hospital, and a professor at the University of British Columbia in Vancouver, called the statement “a piece that puts everything together.”
“This document really summarizes the whole practice for doing transcatheter procedures,” she added, “so it’s all-in-one document in terms of recommendation of who we do the procedure for, how we should do it, how we should image and guide the procedure, and what complications to look out for and how to manage patients post procedure, be it with antithrombotic therapy and/or device surveillance.”
13 recommendations
In all, the statement carries 13 recommendations for LAAC. The Society for Cardiovascular Angiography & Interventions and the Heart Rhythm Society commissioned the writing group. The American College of Cardiology and Society of Cardiovascular Computed Tomography have endorsed the statement. The following are among the recommendations:
- Transcatheter LAAC is appropriate for patients with nonvalvular atrial fibrillation with high thromboembolic risk but for whom long-term oral anticoagulation may be contraindicated and who have at least 1 year’s life expectancy.
- Operators should have performed at least 50 prior left-sided ablations or structural procedures and at least 25 transseptal punctures (TSPs). Interventional-imaging physicians should have experience in guiding 25 or more TSPs before supporting LAAC procedures independently.
- To maintain skills, operators should do 25 or more TSPs and at least 12 LAACs over each 2-year period.
- On-site cardiovascular surgery backup should be available for new programs and for operators early in their learning curve.
- Baseline imaging with transesophageal echocardiography (TEE) or cardiac computed tomography should be performed before LAAC.
- Intraprocedural imaging guidance with TEE or intracardiac echocardiography.
- Follow labeling of each specific LAAC device for technical aspects of the procedure.
- Familiarity with avoiding, recognizing, and managing LAAC complications.
- Predischarge 2-dimensional TEE to rule out pericardial effusion and device embolization.
- Anticoagulation for device-related thrombus.
- Make all efforts to minimize peridevice leaks during implantation because their clinical impact and management isn’t well understood.
- Antithrombotic therapy with warfarin, DOAC, or dual-antiplatelet therapy after LAAC based on the studied regimen and instructions for each specific device, tailored to the bleeding risks for each patient.
- TEE or cardiac computed tomography at 45-90 days after LAAC for device surveillance to assess for peridevice leak and device-related thrombus.
The statement also includes precautionary recommendations. It advises against using routine closure of LAAC-associated iatrogenic atrial septal defects and states that combined procedures with LAAC, such as structural interventions and pulmonary vein isolation, should be avoided because randomized controlled trial data are pending.
“These recommendations are based upon data from updated publications and randomized trial data as well as large registries, including the National Cardiovascular Data Registry, so I think this is a very practical statement that puts all these pieces together for any budding interventionalist doing this procedure and even experienced operations,” Dr. Saw said.
Authors of an accompanying editorial agreed that the “rigorous standards” set out in the statement will help maintain “a high level of procedural safety in the setting of rapid expansion.”
The editorialists, Faisal M. Merchant, MD, of Emory University, Atlanta, and Mohamad Alkhouli, MD, professor of medicine at Mayo Clinic School of Medicine, Rochester, Minn., point out that the incidence of pericardial effusion has decreased from more than 5% in the pivotal Watchman trials to less than 1.5% in the most recent report from the National Cardiovascular Data Registry, which shows that more than 100,000 procedures have been performed in the United States.
But most important as the field moves forward, they stress, is patient selection. The recommendation of limiting patients to those with a life expectancy of 1 year “is a tacit recognition of the fact that the benefits of LAAC take time to accrue, and many older and frail patients are unlikely to derive meaningful benefit.”
Dr. Merchant and Dr. Alkhouli also note that there remains a conundrum in patient selection that remains from the original LAAC trials, which enrolled patients who were eligible for anticoagulation. “Somewhat paradoxically, after its approval, LAAC is mostly prescribed to patients who are not felt to be good anticoagulation candidates.” This leaves physicians “in the precarious position of extrapolating data to patients who were excluded from the original clinical trials.”
Therefore, the consensus statement “is right to put patient selection front and center in its recommendations, but as the field of LAAC comes of age, better evidence to support patient selection will be the real sign of maturity.”
Dr. Saw said she envisions another update over the next 2 years or so as ongoing clinical trials comparing DOAC and LAAC, namely the CHAMPION-AF and OPTION trials, report results.
Dr. Saw and Dr. Merchant, reported no conflicts of interest. Dr. Alkhouli has financial ties to Boston Scientific, Abbott, and Philips.
An updated consensus statement on transcatheter left atrial appendage closure (LAAC) has put a newfound focus on patient selection for the procedure, specifically recommending that the procedure is appropriate for patients with nonvalvular atrial fibrillation who have risk for thromboembolism, aren’t well suited for direct oral anticoagulants (DOACs) and have a good chance of living for at least another year.
The statement, published online in the Journal of the Society for Cardiovascular Angiography & Interventions, also makes recommendations for how much experience operators should have, how many procedures they should perform to keep their skills up, and when and how to use imaging and prescribe DOACs, among other suggestions.
The statement represents the first updated guidance for LAAC since 2015. “Since then this field has really expanded and evolved,” writing group chair Jacqueline Saw, MD, said in an interview. “For instance, the indications are more matured and specific, and the procedural technical steps have matured. Imaging has also advanced, there’s more understanding about postprocedural care and there are also new devices that have been approved.”
Dr. Saw, an interventional cardiologist at Vancouver General Hospital and St. Paul’s Hospital, and a professor at the University of British Columbia in Vancouver, called the statement “a piece that puts everything together.”
“This document really summarizes the whole practice for doing transcatheter procedures,” she added, “so it’s all-in-one document in terms of recommendation of who we do the procedure for, how we should do it, how we should image and guide the procedure, and what complications to look out for and how to manage patients post procedure, be it with antithrombotic therapy and/or device surveillance.”
13 recommendations
In all, the statement carries 13 recommendations for LAAC. The Society for Cardiovascular Angiography & Interventions and the Heart Rhythm Society commissioned the writing group. The American College of Cardiology and Society of Cardiovascular Computed Tomography have endorsed the statement. The following are among the recommendations:
- Transcatheter LAAC is appropriate for patients with nonvalvular atrial fibrillation with high thromboembolic risk but for whom long-term oral anticoagulation may be contraindicated and who have at least 1 year’s life expectancy.
- Operators should have performed at least 50 prior left-sided ablations or structural procedures and at least 25 transseptal punctures (TSPs). Interventional-imaging physicians should have experience in guiding 25 or more TSPs before supporting LAAC procedures independently.
- To maintain skills, operators should do 25 or more TSPs and at least 12 LAACs over each 2-year period.
- On-site cardiovascular surgery backup should be available for new programs and for operators early in their learning curve.
- Baseline imaging with transesophageal echocardiography (TEE) or cardiac computed tomography should be performed before LAAC.
- Intraprocedural imaging guidance with TEE or intracardiac echocardiography.
- Follow labeling of each specific LAAC device for technical aspects of the procedure.
- Familiarity with avoiding, recognizing, and managing LAAC complications.
- Predischarge 2-dimensional TEE to rule out pericardial effusion and device embolization.
- Anticoagulation for device-related thrombus.
- Make all efforts to minimize peridevice leaks during implantation because their clinical impact and management isn’t well understood.
- Antithrombotic therapy with warfarin, DOAC, or dual-antiplatelet therapy after LAAC based on the studied regimen and instructions for each specific device, tailored to the bleeding risks for each patient.
- TEE or cardiac computed tomography at 45-90 days after LAAC for device surveillance to assess for peridevice leak and device-related thrombus.
The statement also includes precautionary recommendations. It advises against using routine closure of LAAC-associated iatrogenic atrial septal defects and states that combined procedures with LAAC, such as structural interventions and pulmonary vein isolation, should be avoided because randomized controlled trial data are pending.
“These recommendations are based upon data from updated publications and randomized trial data as well as large registries, including the National Cardiovascular Data Registry, so I think this is a very practical statement that puts all these pieces together for any budding interventionalist doing this procedure and even experienced operations,” Dr. Saw said.
Authors of an accompanying editorial agreed that the “rigorous standards” set out in the statement will help maintain “a high level of procedural safety in the setting of rapid expansion.”
The editorialists, Faisal M. Merchant, MD, of Emory University, Atlanta, and Mohamad Alkhouli, MD, professor of medicine at Mayo Clinic School of Medicine, Rochester, Minn., point out that the incidence of pericardial effusion has decreased from more than 5% in the pivotal Watchman trials to less than 1.5% in the most recent report from the National Cardiovascular Data Registry, which shows that more than 100,000 procedures have been performed in the United States.
But most important as the field moves forward, they stress, is patient selection. The recommendation of limiting patients to those with a life expectancy of 1 year “is a tacit recognition of the fact that the benefits of LAAC take time to accrue, and many older and frail patients are unlikely to derive meaningful benefit.”
Dr. Merchant and Dr. Alkhouli also note that there remains a conundrum in patient selection that remains from the original LAAC trials, which enrolled patients who were eligible for anticoagulation. “Somewhat paradoxically, after its approval, LAAC is mostly prescribed to patients who are not felt to be good anticoagulation candidates.” This leaves physicians “in the precarious position of extrapolating data to patients who were excluded from the original clinical trials.”
Therefore, the consensus statement “is right to put patient selection front and center in its recommendations, but as the field of LAAC comes of age, better evidence to support patient selection will be the real sign of maturity.”
Dr. Saw said she envisions another update over the next 2 years or so as ongoing clinical trials comparing DOAC and LAAC, namely the CHAMPION-AF and OPTION trials, report results.
Dr. Saw and Dr. Merchant, reported no conflicts of interest. Dr. Alkhouli has financial ties to Boston Scientific, Abbott, and Philips.
An updated consensus statement on transcatheter left atrial appendage closure (LAAC) has put a newfound focus on patient selection for the procedure, specifically recommending that the procedure is appropriate for patients with nonvalvular atrial fibrillation who have risk for thromboembolism, aren’t well suited for direct oral anticoagulants (DOACs) and have a good chance of living for at least another year.
The statement, published online in the Journal of the Society for Cardiovascular Angiography & Interventions, also makes recommendations for how much experience operators should have, how many procedures they should perform to keep their skills up, and when and how to use imaging and prescribe DOACs, among other suggestions.
The statement represents the first updated guidance for LAAC since 2015. “Since then this field has really expanded and evolved,” writing group chair Jacqueline Saw, MD, said in an interview. “For instance, the indications are more matured and specific, and the procedural technical steps have matured. Imaging has also advanced, there’s more understanding about postprocedural care and there are also new devices that have been approved.”
Dr. Saw, an interventional cardiologist at Vancouver General Hospital and St. Paul’s Hospital, and a professor at the University of British Columbia in Vancouver, called the statement “a piece that puts everything together.”
“This document really summarizes the whole practice for doing transcatheter procedures,” she added, “so it’s all-in-one document in terms of recommendation of who we do the procedure for, how we should do it, how we should image and guide the procedure, and what complications to look out for and how to manage patients post procedure, be it with antithrombotic therapy and/or device surveillance.”
13 recommendations
In all, the statement carries 13 recommendations for LAAC. The Society for Cardiovascular Angiography & Interventions and the Heart Rhythm Society commissioned the writing group. The American College of Cardiology and Society of Cardiovascular Computed Tomography have endorsed the statement. The following are among the recommendations:
- Transcatheter LAAC is appropriate for patients with nonvalvular atrial fibrillation with high thromboembolic risk but for whom long-term oral anticoagulation may be contraindicated and who have at least 1 year’s life expectancy.
- Operators should have performed at least 50 prior left-sided ablations or structural procedures and at least 25 transseptal punctures (TSPs). Interventional-imaging physicians should have experience in guiding 25 or more TSPs before supporting LAAC procedures independently.
- To maintain skills, operators should do 25 or more TSPs and at least 12 LAACs over each 2-year period.
- On-site cardiovascular surgery backup should be available for new programs and for operators early in their learning curve.
- Baseline imaging with transesophageal echocardiography (TEE) or cardiac computed tomography should be performed before LAAC.
- Intraprocedural imaging guidance with TEE or intracardiac echocardiography.
- Follow labeling of each specific LAAC device for technical aspects of the procedure.
- Familiarity with avoiding, recognizing, and managing LAAC complications.
- Predischarge 2-dimensional TEE to rule out pericardial effusion and device embolization.
- Anticoagulation for device-related thrombus.
- Make all efforts to minimize peridevice leaks during implantation because their clinical impact and management isn’t well understood.
- Antithrombotic therapy with warfarin, DOAC, or dual-antiplatelet therapy after LAAC based on the studied regimen and instructions for each specific device, tailored to the bleeding risks for each patient.
- TEE or cardiac computed tomography at 45-90 days after LAAC for device surveillance to assess for peridevice leak and device-related thrombus.
The statement also includes precautionary recommendations. It advises against using routine closure of LAAC-associated iatrogenic atrial septal defects and states that combined procedures with LAAC, such as structural interventions and pulmonary vein isolation, should be avoided because randomized controlled trial data are pending.
“These recommendations are based upon data from updated publications and randomized trial data as well as large registries, including the National Cardiovascular Data Registry, so I think this is a very practical statement that puts all these pieces together for any budding interventionalist doing this procedure and even experienced operations,” Dr. Saw said.
Authors of an accompanying editorial agreed that the “rigorous standards” set out in the statement will help maintain “a high level of procedural safety in the setting of rapid expansion.”
The editorialists, Faisal M. Merchant, MD, of Emory University, Atlanta, and Mohamad Alkhouli, MD, professor of medicine at Mayo Clinic School of Medicine, Rochester, Minn., point out that the incidence of pericardial effusion has decreased from more than 5% in the pivotal Watchman trials to less than 1.5% in the most recent report from the National Cardiovascular Data Registry, which shows that more than 100,000 procedures have been performed in the United States.
But most important as the field moves forward, they stress, is patient selection. The recommendation of limiting patients to those with a life expectancy of 1 year “is a tacit recognition of the fact that the benefits of LAAC take time to accrue, and many older and frail patients are unlikely to derive meaningful benefit.”
Dr. Merchant and Dr. Alkhouli also note that there remains a conundrum in patient selection that remains from the original LAAC trials, which enrolled patients who were eligible for anticoagulation. “Somewhat paradoxically, after its approval, LAAC is mostly prescribed to patients who are not felt to be good anticoagulation candidates.” This leaves physicians “in the precarious position of extrapolating data to patients who were excluded from the original clinical trials.”
Therefore, the consensus statement “is right to put patient selection front and center in its recommendations, but as the field of LAAC comes of age, better evidence to support patient selection will be the real sign of maturity.”
Dr. Saw said she envisions another update over the next 2 years or so as ongoing clinical trials comparing DOAC and LAAC, namely the CHAMPION-AF and OPTION trials, report results.
Dr. Saw and Dr. Merchant, reported no conflicts of interest. Dr. Alkhouli has financial ties to Boston Scientific, Abbott, and Philips.
FROM THE JOURNAL OF THE SOCIETY FOR CARDIOVASCULAR ANGIOGRAPHY & INTERVENTIONS
New AHA statement on pediatric primary hypertension issued
the American Heart Association said in a new scientific statement.
“Children can have secondary hypertension that is caused by an underlying condition such as chronic kidney disease, endocrine disorders, cardiac anomalies, and some syndromes. However, primary hypertension is now recognized as the most common type of hypertension in childhood,” Bonita Falkner, MD, chair of the writing group and emeritus professor of medicine and pediatrics, Thomas Jefferson University, Philadelphia, said in an interview.
And hypertensive children are “highly likely” to become hypertensive adults and to have measurable target organ injury, particularly left ventricular hypertrophy and vascular stiffening, the writing group noted.
The AHA statement on primary pediatric hypertension was published online in Hypertension.
Primary or essential hypertension occurs in up to 5% of children and adolescents in the United States and other countries.
The American Academy of Pediatrics (AAP), European Society of Hypertension and Hypertension Canada all define hypertension as repeated BP readings at or above the 95th percentile for children, but the thresholds differ by age.
The AAP adopts 130/80 mm Hg starting at age 13 years; the European Society of Hypertension adopts 140/90 mm Hg starting at age 16 years; and Hypertension Canada adopts 120/80 mm Hg for those aged 6-11 years and 130/85 mm Hg for those aged 12-17 years.
Adolescents entering adulthood with a BP < 120/80 mm Hg is an optimal goal, the writing group advised.
They recommend that health care professionals be trained on evidence-based methods to obtain accurate and reliable BP values with either auscultatory or oscillometric methods.
When the initial BP measurement is abnormal, repeat measurement by auscultation is recommended, within the same visit if possible, and then within weeks if the screening BP is hypertensive, or months if the screening BP is elevated.
Because BP levels are variable, even within a single visit, “best practice” is to obtain up to three BP measurements and to record the average of the latter two measurements unless the first measurement is normal, the writing group said. Further confirmation of diagnosis of hypertension can be obtained with 24-hour ambulatory BP monitoring (ABPM).
“Primary hypertension in youth is difficult to recognize in asymptomatic, otherwise healthy youth. There is now evidence that children and adolescents with primary hypertension may also have cardiac and vascular injury due to the hypertension,” Dr. Falkner told this news organization.
“If not identified and treated, the condition can progress to hypertension in young adulthood with heightened risk of premature cardiovascular events,” Dr. Falkner said.
The writing group said “primordial prevention” is an important public health goal because a population with lower BP will have fewer comorbidities related to hypertension and CVD.
Modifiable risk factors for primary hypertension in childhood include obesity, physical inactivity and poor diet/nutrition, disturbed sleep patterns, and environmental stress.
A healthy lifestyle in childhood – including eating healthy food, encouraging physical activity that leads to improved physical fitness and healthy sleep, and avoiding the development of obesity – may help mitigate the risk of hypertension in childhood, the writing group noted.
Looking ahead, they said efforts to improve recognition and diagnosis of high BP in children, as well as clinical trials to evaluate medical treatment and recommend public health initiatives, are all vital to combat rising rates of primary hypertension in children.
This scientific statement was prepared by the volunteer writing group on behalf of the American Heart Association’s Council on Hypertension, the Council on Lifelong Congenital Heart Disease and Heart Health in the Young, the Council on Kidney in Cardiovascular Disease, the Council on Lifestyle and Cardiometabolic Health, and the Council on Cardiovascular and Stroke Nursing.
A version of this article first appeared on Medscape.com.
the American Heart Association said in a new scientific statement.
“Children can have secondary hypertension that is caused by an underlying condition such as chronic kidney disease, endocrine disorders, cardiac anomalies, and some syndromes. However, primary hypertension is now recognized as the most common type of hypertension in childhood,” Bonita Falkner, MD, chair of the writing group and emeritus professor of medicine and pediatrics, Thomas Jefferson University, Philadelphia, said in an interview.
And hypertensive children are “highly likely” to become hypertensive adults and to have measurable target organ injury, particularly left ventricular hypertrophy and vascular stiffening, the writing group noted.
The AHA statement on primary pediatric hypertension was published online in Hypertension.
Primary or essential hypertension occurs in up to 5% of children and adolescents in the United States and other countries.
The American Academy of Pediatrics (AAP), European Society of Hypertension and Hypertension Canada all define hypertension as repeated BP readings at or above the 95th percentile for children, but the thresholds differ by age.
The AAP adopts 130/80 mm Hg starting at age 13 years; the European Society of Hypertension adopts 140/90 mm Hg starting at age 16 years; and Hypertension Canada adopts 120/80 mm Hg for those aged 6-11 years and 130/85 mm Hg for those aged 12-17 years.
Adolescents entering adulthood with a BP < 120/80 mm Hg is an optimal goal, the writing group advised.
They recommend that health care professionals be trained on evidence-based methods to obtain accurate and reliable BP values with either auscultatory or oscillometric methods.
When the initial BP measurement is abnormal, repeat measurement by auscultation is recommended, within the same visit if possible, and then within weeks if the screening BP is hypertensive, or months if the screening BP is elevated.
Because BP levels are variable, even within a single visit, “best practice” is to obtain up to three BP measurements and to record the average of the latter two measurements unless the first measurement is normal, the writing group said. Further confirmation of diagnosis of hypertension can be obtained with 24-hour ambulatory BP monitoring (ABPM).
“Primary hypertension in youth is difficult to recognize in asymptomatic, otherwise healthy youth. There is now evidence that children and adolescents with primary hypertension may also have cardiac and vascular injury due to the hypertension,” Dr. Falkner told this news organization.
“If not identified and treated, the condition can progress to hypertension in young adulthood with heightened risk of premature cardiovascular events,” Dr. Falkner said.
The writing group said “primordial prevention” is an important public health goal because a population with lower BP will have fewer comorbidities related to hypertension and CVD.
Modifiable risk factors for primary hypertension in childhood include obesity, physical inactivity and poor diet/nutrition, disturbed sleep patterns, and environmental stress.
A healthy lifestyle in childhood – including eating healthy food, encouraging physical activity that leads to improved physical fitness and healthy sleep, and avoiding the development of obesity – may help mitigate the risk of hypertension in childhood, the writing group noted.
Looking ahead, they said efforts to improve recognition and diagnosis of high BP in children, as well as clinical trials to evaluate medical treatment and recommend public health initiatives, are all vital to combat rising rates of primary hypertension in children.
This scientific statement was prepared by the volunteer writing group on behalf of the American Heart Association’s Council on Hypertension, the Council on Lifelong Congenital Heart Disease and Heart Health in the Young, the Council on Kidney in Cardiovascular Disease, the Council on Lifestyle and Cardiometabolic Health, and the Council on Cardiovascular and Stroke Nursing.
A version of this article first appeared on Medscape.com.
the American Heart Association said in a new scientific statement.
“Children can have secondary hypertension that is caused by an underlying condition such as chronic kidney disease, endocrine disorders, cardiac anomalies, and some syndromes. However, primary hypertension is now recognized as the most common type of hypertension in childhood,” Bonita Falkner, MD, chair of the writing group and emeritus professor of medicine and pediatrics, Thomas Jefferson University, Philadelphia, said in an interview.
And hypertensive children are “highly likely” to become hypertensive adults and to have measurable target organ injury, particularly left ventricular hypertrophy and vascular stiffening, the writing group noted.
The AHA statement on primary pediatric hypertension was published online in Hypertension.
Primary or essential hypertension occurs in up to 5% of children and adolescents in the United States and other countries.
The American Academy of Pediatrics (AAP), European Society of Hypertension and Hypertension Canada all define hypertension as repeated BP readings at or above the 95th percentile for children, but the thresholds differ by age.
The AAP adopts 130/80 mm Hg starting at age 13 years; the European Society of Hypertension adopts 140/90 mm Hg starting at age 16 years; and Hypertension Canada adopts 120/80 mm Hg for those aged 6-11 years and 130/85 mm Hg for those aged 12-17 years.
Adolescents entering adulthood with a BP < 120/80 mm Hg is an optimal goal, the writing group advised.
They recommend that health care professionals be trained on evidence-based methods to obtain accurate and reliable BP values with either auscultatory or oscillometric methods.
When the initial BP measurement is abnormal, repeat measurement by auscultation is recommended, within the same visit if possible, and then within weeks if the screening BP is hypertensive, or months if the screening BP is elevated.
Because BP levels are variable, even within a single visit, “best practice” is to obtain up to three BP measurements and to record the average of the latter two measurements unless the first measurement is normal, the writing group said. Further confirmation of diagnosis of hypertension can be obtained with 24-hour ambulatory BP monitoring (ABPM).
“Primary hypertension in youth is difficult to recognize in asymptomatic, otherwise healthy youth. There is now evidence that children and adolescents with primary hypertension may also have cardiac and vascular injury due to the hypertension,” Dr. Falkner told this news organization.
“If not identified and treated, the condition can progress to hypertension in young adulthood with heightened risk of premature cardiovascular events,” Dr. Falkner said.
The writing group said “primordial prevention” is an important public health goal because a population with lower BP will have fewer comorbidities related to hypertension and CVD.
Modifiable risk factors for primary hypertension in childhood include obesity, physical inactivity and poor diet/nutrition, disturbed sleep patterns, and environmental stress.
A healthy lifestyle in childhood – including eating healthy food, encouraging physical activity that leads to improved physical fitness and healthy sleep, and avoiding the development of obesity – may help mitigate the risk of hypertension in childhood, the writing group noted.
Looking ahead, they said efforts to improve recognition and diagnosis of high BP in children, as well as clinical trials to evaluate medical treatment and recommend public health initiatives, are all vital to combat rising rates of primary hypertension in children.
This scientific statement was prepared by the volunteer writing group on behalf of the American Heart Association’s Council on Hypertension, the Council on Lifelong Congenital Heart Disease and Heart Health in the Young, the Council on Kidney in Cardiovascular Disease, the Council on Lifestyle and Cardiometabolic Health, and the Council on Cardiovascular and Stroke Nursing.
A version of this article first appeared on Medscape.com.
FROM HYPERTENSION
Specific brain damage links hypertension to cognitive impairment
Researchers have identified specific regions of the brain that appear to be damaged by high blood pressure. The finding may explain the link between hypertension and cognitive impairment.
They used genetic information from genome-wide association studies (GWASs) and MRI scans of the brain to study the relationship between hypertension, changes in brain structures, and cognitive impairment. Using Mendelian randomization techniques, they identified nine brain structures related to cognitive impairment that are affected by blood pressure.
“We knew before that raised blood pressure was related to changes in the brain, but our research has narrowed down the changes to those that appear to be potentially causally related to cognitive impairment,” senior author Tomasz Guzik, professor of cardiovascular medicine, at the University of Edinburgh and of the Jagiellonian University, Krakow, Poland, told this news organization.
“Our study confirms a potentially causal relationship between raised blood pressure and cognitive impairment, emphasizing the importance of preventing and treating hypertension,” Prof. Guzik noted.
“But it also identifies the brain culprits of this relationship,” he added.
In the future, it may be possible to assess these nine brain structures in people with high blood pressure to identify those at increased risk of developing cognitive impairment, he said. “These patients may need more intensive care for their blood pressure. We can also investigate these brain structures for potential signaling pathways and molecular changes to see if we can find new targets for treatment to prevent cognitive impairment.”
For this report, the investigators married together different research datasets to identify brain structures potentially responsible for the effects of blood pressure on cognitive function, using results from previous GWASs and observational data from 39,000 people in the UK Biobank registry for whom brain MRI data were available.
First, they mapped brain structures potentially influenced by blood pressure in midlife using MRI scans from people in the UK Biobank registry. Then they examined the relationship between blood pressure and cognitive function in the UK Biobank registry. Next, of the brain structures affected by blood pressure, they identified those that are causally linked to cognitive impairment.
This was possible thanks to genetic markers coding for increased blood pressure, brain structure imaging phenotypes, and those coding for cognitive impairment that could be used in Mendelian randomization studies.
“We looked at 3935 brain magnetic resonance imaging–derived phenotypes in the brain and cognitive function defined by fluid intelligence score to identify genetically predicted causal relationships,” Prof. Guzik said.
They identified 200 brain structures that were causally affected by systolic blood pressure. Of these, nine were also causally related to cognitive impairment. The results were validated in a second prospective cohort of patients with hypertension.
“Some of these structures, including putamen and the white matter regions spanning between the anterior corona radiata, anterior thalamic radiation, and anterior limb of the internal capsule, may represent the target brain regions at which systolic blood pressure acts on cognitive function,” the authors comment.
In an accompanying editorial, Ernesto Schiffrin, MD, and James Engert, PhD, McGill University, Montreal, say that further mechanistic studies of the effects of blood pressure on cognitive function are required to determine precise causal pathways and the roles of relevant brain regions.
“Eventually, biomarkers could be developed to inform antihypertensive trials. Whether clinical trials targeting the specific brain structures will be feasible or if specific antihypertensives could be found that target specific structures remains to be demonstrated,” they write.
“Thus, these new studies could lead to an understanding of the signaling pathways that explain how these structures relate vascular damage to cognitive impairment in hypertension, and contribute to the development of novel interventions to more successfully address the scourge of cognitive decline and dementia in the future,” the editorialists conclude.
The study was funded by the European Research Council, the British Heart Foundation, and the Italian Ministry of Health.
A version of this article first appeared on Medscape.com.
Researchers have identified specific regions of the brain that appear to be damaged by high blood pressure. The finding may explain the link between hypertension and cognitive impairment.
They used genetic information from genome-wide association studies (GWASs) and MRI scans of the brain to study the relationship between hypertension, changes in brain structures, and cognitive impairment. Using Mendelian randomization techniques, they identified nine brain structures related to cognitive impairment that are affected by blood pressure.
“We knew before that raised blood pressure was related to changes in the brain, but our research has narrowed down the changes to those that appear to be potentially causally related to cognitive impairment,” senior author Tomasz Guzik, professor of cardiovascular medicine, at the University of Edinburgh and of the Jagiellonian University, Krakow, Poland, told this news organization.
“Our study confirms a potentially causal relationship between raised blood pressure and cognitive impairment, emphasizing the importance of preventing and treating hypertension,” Prof. Guzik noted.
“But it also identifies the brain culprits of this relationship,” he added.
In the future, it may be possible to assess these nine brain structures in people with high blood pressure to identify those at increased risk of developing cognitive impairment, he said. “These patients may need more intensive care for their blood pressure. We can also investigate these brain structures for potential signaling pathways and molecular changes to see if we can find new targets for treatment to prevent cognitive impairment.”
For this report, the investigators married together different research datasets to identify brain structures potentially responsible for the effects of blood pressure on cognitive function, using results from previous GWASs and observational data from 39,000 people in the UK Biobank registry for whom brain MRI data were available.
First, they mapped brain structures potentially influenced by blood pressure in midlife using MRI scans from people in the UK Biobank registry. Then they examined the relationship between blood pressure and cognitive function in the UK Biobank registry. Next, of the brain structures affected by blood pressure, they identified those that are causally linked to cognitive impairment.
This was possible thanks to genetic markers coding for increased blood pressure, brain structure imaging phenotypes, and those coding for cognitive impairment that could be used in Mendelian randomization studies.
“We looked at 3935 brain magnetic resonance imaging–derived phenotypes in the brain and cognitive function defined by fluid intelligence score to identify genetically predicted causal relationships,” Prof. Guzik said.
They identified 200 brain structures that were causally affected by systolic blood pressure. Of these, nine were also causally related to cognitive impairment. The results were validated in a second prospective cohort of patients with hypertension.
“Some of these structures, including putamen and the white matter regions spanning between the anterior corona radiata, anterior thalamic radiation, and anterior limb of the internal capsule, may represent the target brain regions at which systolic blood pressure acts on cognitive function,” the authors comment.
In an accompanying editorial, Ernesto Schiffrin, MD, and James Engert, PhD, McGill University, Montreal, say that further mechanistic studies of the effects of blood pressure on cognitive function are required to determine precise causal pathways and the roles of relevant brain regions.
“Eventually, biomarkers could be developed to inform antihypertensive trials. Whether clinical trials targeting the specific brain structures will be feasible or if specific antihypertensives could be found that target specific structures remains to be demonstrated,” they write.
“Thus, these new studies could lead to an understanding of the signaling pathways that explain how these structures relate vascular damage to cognitive impairment in hypertension, and contribute to the development of novel interventions to more successfully address the scourge of cognitive decline and dementia in the future,” the editorialists conclude.
The study was funded by the European Research Council, the British Heart Foundation, and the Italian Ministry of Health.
A version of this article first appeared on Medscape.com.
Researchers have identified specific regions of the brain that appear to be damaged by high blood pressure. The finding may explain the link between hypertension and cognitive impairment.
They used genetic information from genome-wide association studies (GWASs) and MRI scans of the brain to study the relationship between hypertension, changes in brain structures, and cognitive impairment. Using Mendelian randomization techniques, they identified nine brain structures related to cognitive impairment that are affected by blood pressure.
“We knew before that raised blood pressure was related to changes in the brain, but our research has narrowed down the changes to those that appear to be potentially causally related to cognitive impairment,” senior author Tomasz Guzik, professor of cardiovascular medicine, at the University of Edinburgh and of the Jagiellonian University, Krakow, Poland, told this news organization.
“Our study confirms a potentially causal relationship between raised blood pressure and cognitive impairment, emphasizing the importance of preventing and treating hypertension,” Prof. Guzik noted.
“But it also identifies the brain culprits of this relationship,” he added.
In the future, it may be possible to assess these nine brain structures in people with high blood pressure to identify those at increased risk of developing cognitive impairment, he said. “These patients may need more intensive care for their blood pressure. We can also investigate these brain structures for potential signaling pathways and molecular changes to see if we can find new targets for treatment to prevent cognitive impairment.”
For this report, the investigators married together different research datasets to identify brain structures potentially responsible for the effects of blood pressure on cognitive function, using results from previous GWASs and observational data from 39,000 people in the UK Biobank registry for whom brain MRI data were available.
First, they mapped brain structures potentially influenced by blood pressure in midlife using MRI scans from people in the UK Biobank registry. Then they examined the relationship between blood pressure and cognitive function in the UK Biobank registry. Next, of the brain structures affected by blood pressure, they identified those that are causally linked to cognitive impairment.
This was possible thanks to genetic markers coding for increased blood pressure, brain structure imaging phenotypes, and those coding for cognitive impairment that could be used in Mendelian randomization studies.
“We looked at 3935 brain magnetic resonance imaging–derived phenotypes in the brain and cognitive function defined by fluid intelligence score to identify genetically predicted causal relationships,” Prof. Guzik said.
They identified 200 brain structures that were causally affected by systolic blood pressure. Of these, nine were also causally related to cognitive impairment. The results were validated in a second prospective cohort of patients with hypertension.
“Some of these structures, including putamen and the white matter regions spanning between the anterior corona radiata, anterior thalamic radiation, and anterior limb of the internal capsule, may represent the target brain regions at which systolic blood pressure acts on cognitive function,” the authors comment.
In an accompanying editorial, Ernesto Schiffrin, MD, and James Engert, PhD, McGill University, Montreal, say that further mechanistic studies of the effects of blood pressure on cognitive function are required to determine precise causal pathways and the roles of relevant brain regions.
“Eventually, biomarkers could be developed to inform antihypertensive trials. Whether clinical trials targeting the specific brain structures will be feasible or if specific antihypertensives could be found that target specific structures remains to be demonstrated,” they write.
“Thus, these new studies could lead to an understanding of the signaling pathways that explain how these structures relate vascular damage to cognitive impairment in hypertension, and contribute to the development of novel interventions to more successfully address the scourge of cognitive decline and dementia in the future,” the editorialists conclude.
The study was funded by the European Research Council, the British Heart Foundation, and the Italian Ministry of Health.
A version of this article first appeared on Medscape.com.
AHA, ACC push supervised exercise training for HFpEF
A statement released by the American Heart Association and the American College of Cardiology advocates use of supervised exercise training in patients with heart failure with preserved ejection fraction (HFpEF), as well as coverage for these services by third-party payers.
The authors hope to boost the stature of supervised exercise training (SET) in HFpEF among practitioners and show Medicare and insurers that it deserves reimbursement. Currently, they noted, clinicians tend to recognize exercise as therapy more in HF with reduced ejection fraction (HFrEF). And Medicare covers exercise training within broader cardiac rehabilitation programs for patients with HFrEF but not HFpEF.
Yet exercise has been broadly effective in HFpEF clinical trials, as outlined in the document. And there are good mechanistic reasons to believe that patients with the disorder can gain as much or more from SET than those with HFrEF.
“The signals for improvement from exercise training, in symptoms and objective measures of exercise capacity, are considerably larger for HFpEF than for HFrEF,” Dalane W. Kitzman, MD, Wake Forest University, Winston-Salem, N.C., said in an interview.
So, it’s a bit of a paradox that clinicians don’t prescribe it as often in HFpEF, probably because of the lack of reimbursement but also from less “awareness” and understanding of the disease itself, he proposed.
Dr. Kitzman is senior author on the statement sponsored by the AHA and the ACC. It was published in the societies’ flagship journals Circulation and the Journal of the American College of Cardiology. The statement was also endorsed by the Heart Failure Society of America, the American Association of Cardiovascular and Pulmonary Rehabilitation, and the American Association of Heart Failure Nurses.
Carefully chosen words
The statement makes its case in HFpEF specifically for SET rather than cardiac rehabilitation, the latter typically a comprehensive program that goes beyond exercise, Dr. Kitzman noted. And SET is closer to the exercise interventions used in the supportive HFpEF trials.
“Also, Medicare in recent years has approved something called ‘supervised exercise training’ for other disorders, such as peripheral artery disease.” So, the document specifies SET “to be fully aligned with the evidence base,” he said, as well as “align it with a type of treatment that Medicare has a precedent for approving for other disorders.”
Data and physiologic basis
Core features of the AHA/ACC statement is its review of HFpEF exercise physiology, survey of randomized trials supporting SET in the disease, and characterization of exercise as an especially suitable pleiotropic therapy.
Increasingly, “HFpEF is now accepted as a systemic disorder that affects and impacts all organs,” Dr. Kitzman observed. “With a systemic multiorgan disorder, it would make sense that a broad treatment like exercise might be just the right thing. We think that’s the reason that its benefits are really quite large in magnitude.”
The document notes that exercise seems “potentially well suited for the treatment of both the cardiac and, in particular, the extracardiac abnormalities that contribute to exercise intolerance in HFpEF.”
Its effects in the disorder are “anti-inflammatory, rheological, lipid lowering, antihypertensive, positive inotropic, positive lusitropic, negative chronotropic, vasodilation, diuretic, weight-reducing, hypoglycemic, hypnotic, and antidepressive,” the statement notes. It achieves them via multiple pathways involving the heart, lungs, vasculature and, notably, the skeletal muscles.
“It’s been widely overlooked that at least 50% of low exercise capacity and symptoms in HFpEF are due to skeletal muscle dysfunction,” said Dr. Kitzman, an authority on exercise physiology in heart failure.
“But we’ve spent about 95% of our attention trying to modify and understand the cardiac component.” Skeletal muscles, he said, “are not an innocent bystander. They’re part of the problem. And that’s why we should really spend more time focusing on them.”
Dr. Kitzman disclosed receiving consulting fees from Bayer, Medtronic, Corvia Medical, Boehringer Ingelheim, Keyto, Rivus, NovoNordisk, AstraZeneca, and Pfizer; holding stock in Gilead; and receiving grants to his institution from Bayer, Novo Nordisk, AstraZeneca, Rivus, and Pfizer.
A version of this article first appeared on Medscape.com.
A statement released by the American Heart Association and the American College of Cardiology advocates use of supervised exercise training in patients with heart failure with preserved ejection fraction (HFpEF), as well as coverage for these services by third-party payers.
The authors hope to boost the stature of supervised exercise training (SET) in HFpEF among practitioners and show Medicare and insurers that it deserves reimbursement. Currently, they noted, clinicians tend to recognize exercise as therapy more in HF with reduced ejection fraction (HFrEF). And Medicare covers exercise training within broader cardiac rehabilitation programs for patients with HFrEF but not HFpEF.
Yet exercise has been broadly effective in HFpEF clinical trials, as outlined in the document. And there are good mechanistic reasons to believe that patients with the disorder can gain as much or more from SET than those with HFrEF.
“The signals for improvement from exercise training, in symptoms and objective measures of exercise capacity, are considerably larger for HFpEF than for HFrEF,” Dalane W. Kitzman, MD, Wake Forest University, Winston-Salem, N.C., said in an interview.
So, it’s a bit of a paradox that clinicians don’t prescribe it as often in HFpEF, probably because of the lack of reimbursement but also from less “awareness” and understanding of the disease itself, he proposed.
Dr. Kitzman is senior author on the statement sponsored by the AHA and the ACC. It was published in the societies’ flagship journals Circulation and the Journal of the American College of Cardiology. The statement was also endorsed by the Heart Failure Society of America, the American Association of Cardiovascular and Pulmonary Rehabilitation, and the American Association of Heart Failure Nurses.
Carefully chosen words
The statement makes its case in HFpEF specifically for SET rather than cardiac rehabilitation, the latter typically a comprehensive program that goes beyond exercise, Dr. Kitzman noted. And SET is closer to the exercise interventions used in the supportive HFpEF trials.
“Also, Medicare in recent years has approved something called ‘supervised exercise training’ for other disorders, such as peripheral artery disease.” So, the document specifies SET “to be fully aligned with the evidence base,” he said, as well as “align it with a type of treatment that Medicare has a precedent for approving for other disorders.”
Data and physiologic basis
Core features of the AHA/ACC statement is its review of HFpEF exercise physiology, survey of randomized trials supporting SET in the disease, and characterization of exercise as an especially suitable pleiotropic therapy.
Increasingly, “HFpEF is now accepted as a systemic disorder that affects and impacts all organs,” Dr. Kitzman observed. “With a systemic multiorgan disorder, it would make sense that a broad treatment like exercise might be just the right thing. We think that’s the reason that its benefits are really quite large in magnitude.”
The document notes that exercise seems “potentially well suited for the treatment of both the cardiac and, in particular, the extracardiac abnormalities that contribute to exercise intolerance in HFpEF.”
Its effects in the disorder are “anti-inflammatory, rheological, lipid lowering, antihypertensive, positive inotropic, positive lusitropic, negative chronotropic, vasodilation, diuretic, weight-reducing, hypoglycemic, hypnotic, and antidepressive,” the statement notes. It achieves them via multiple pathways involving the heart, lungs, vasculature and, notably, the skeletal muscles.
“It’s been widely overlooked that at least 50% of low exercise capacity and symptoms in HFpEF are due to skeletal muscle dysfunction,” said Dr. Kitzman, an authority on exercise physiology in heart failure.
“But we’ve spent about 95% of our attention trying to modify and understand the cardiac component.” Skeletal muscles, he said, “are not an innocent bystander. They’re part of the problem. And that’s why we should really spend more time focusing on them.”
Dr. Kitzman disclosed receiving consulting fees from Bayer, Medtronic, Corvia Medical, Boehringer Ingelheim, Keyto, Rivus, NovoNordisk, AstraZeneca, and Pfizer; holding stock in Gilead; and receiving grants to his institution from Bayer, Novo Nordisk, AstraZeneca, Rivus, and Pfizer.
A version of this article first appeared on Medscape.com.
A statement released by the American Heart Association and the American College of Cardiology advocates use of supervised exercise training in patients with heart failure with preserved ejection fraction (HFpEF), as well as coverage for these services by third-party payers.
The authors hope to boost the stature of supervised exercise training (SET) in HFpEF among practitioners and show Medicare and insurers that it deserves reimbursement. Currently, they noted, clinicians tend to recognize exercise as therapy more in HF with reduced ejection fraction (HFrEF). And Medicare covers exercise training within broader cardiac rehabilitation programs for patients with HFrEF but not HFpEF.
Yet exercise has been broadly effective in HFpEF clinical trials, as outlined in the document. And there are good mechanistic reasons to believe that patients with the disorder can gain as much or more from SET than those with HFrEF.
“The signals for improvement from exercise training, in symptoms and objective measures of exercise capacity, are considerably larger for HFpEF than for HFrEF,” Dalane W. Kitzman, MD, Wake Forest University, Winston-Salem, N.C., said in an interview.
So, it’s a bit of a paradox that clinicians don’t prescribe it as often in HFpEF, probably because of the lack of reimbursement but also from less “awareness” and understanding of the disease itself, he proposed.
Dr. Kitzman is senior author on the statement sponsored by the AHA and the ACC. It was published in the societies’ flagship journals Circulation and the Journal of the American College of Cardiology. The statement was also endorsed by the Heart Failure Society of America, the American Association of Cardiovascular and Pulmonary Rehabilitation, and the American Association of Heart Failure Nurses.
Carefully chosen words
The statement makes its case in HFpEF specifically for SET rather than cardiac rehabilitation, the latter typically a comprehensive program that goes beyond exercise, Dr. Kitzman noted. And SET is closer to the exercise interventions used in the supportive HFpEF trials.
“Also, Medicare in recent years has approved something called ‘supervised exercise training’ for other disorders, such as peripheral artery disease.” So, the document specifies SET “to be fully aligned with the evidence base,” he said, as well as “align it with a type of treatment that Medicare has a precedent for approving for other disorders.”
Data and physiologic basis
Core features of the AHA/ACC statement is its review of HFpEF exercise physiology, survey of randomized trials supporting SET in the disease, and characterization of exercise as an especially suitable pleiotropic therapy.
Increasingly, “HFpEF is now accepted as a systemic disorder that affects and impacts all organs,” Dr. Kitzman observed. “With a systemic multiorgan disorder, it would make sense that a broad treatment like exercise might be just the right thing. We think that’s the reason that its benefits are really quite large in magnitude.”
The document notes that exercise seems “potentially well suited for the treatment of both the cardiac and, in particular, the extracardiac abnormalities that contribute to exercise intolerance in HFpEF.”
Its effects in the disorder are “anti-inflammatory, rheological, lipid lowering, antihypertensive, positive inotropic, positive lusitropic, negative chronotropic, vasodilation, diuretic, weight-reducing, hypoglycemic, hypnotic, and antidepressive,” the statement notes. It achieves them via multiple pathways involving the heart, lungs, vasculature and, notably, the skeletal muscles.
“It’s been widely overlooked that at least 50% of low exercise capacity and symptoms in HFpEF are due to skeletal muscle dysfunction,” said Dr. Kitzman, an authority on exercise physiology in heart failure.
“But we’ve spent about 95% of our attention trying to modify and understand the cardiac component.” Skeletal muscles, he said, “are not an innocent bystander. They’re part of the problem. And that’s why we should really spend more time focusing on them.”
Dr. Kitzman disclosed receiving consulting fees from Bayer, Medtronic, Corvia Medical, Boehringer Ingelheim, Keyto, Rivus, NovoNordisk, AstraZeneca, and Pfizer; holding stock in Gilead; and receiving grants to his institution from Bayer, Novo Nordisk, AstraZeneca, Rivus, and Pfizer.
A version of this article first appeared on Medscape.com.