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Adverse events decreased over the last decade for Medicare inpatients with acute myocardial infarction or heart failure but barely changed for those with pneumonia or conditions requiring surgery, according to an analysis of a Medicare database.
The improvements likely translated to 81,000 fewer adverse events for patients with acute MI (AMI) and heart failure (HF) from 2010 to 2011 alone, according to the study published Jan. 22 in the New England Journal of Medicine.
"Although this suggests that national efforts focused on patient safety have made some inroads, the lack of reductions across the board is disappointing," Yun Wang, Ph.D., of the Harvard School of Public Health, Boston, and his colleagues wrote.
The researchers examined whether hospitalized patients are any better off in light of the current focus on patient safety, including the launch of initiatives such as the American College of Surgeons’ National Surgical Quality Improvement Program and the federal government’s Surgical Infection Prevention Project.
They used three composite outcomes measures: the rate of occurrence for adverse events for which patients were at risk (for instance, only patients receiving warfarin were at risk for warfarin-related events); the proportion of patients with one or more adverse events; and the number of adverse events per 1,000 hospitalizations. They analyzed data on 61,523 patients who were discharged from 4,372 hospitals; the data were extracted from the Medicare Patient Safety Monitoring System database (N. Engl. J. Med. 2014:370;341-51).
The 61,523 patients included 11,399 with AMI, 15,374 with HF, 18,269 with pneumonia, and 16,481 with conditions requiring surgery. Postsurgical patients largely were being treated for joint replacement procedures and other osteoarthritis-related conditions, femur fracture, colon cancer, post-AMI procedures, or other forms of chronic ischemic heart disease.
From 2005-2006 to 2010-2011, AMI and HF patients saw a 1.3 percentage point decline in the rate of adverse events, from 5% to 3.7%. The proportion who had one or more such events decreased from 26% to 19%. The number of adverse events per 1,000 hospitalizations declined from 402 to 262 for AMI patients and from 235 to 167 for HF patients.
Infection-related and drug-related adverse events declined significantly in heart attack and HF patients. There was also a substantial improvement in postprocedure events in HF patients.
Postsurgical patients experienced slight increases in all three outcomes measures, in particular, increases in infection-related and postprocedural events such as venous thromboembolism, and cardiac and catheter-related events. The number of events per 1,000 hospitalizations for pneumonia patients increased insignificantly from 216 to 223. For postsurgical patients, the number of events increased insignificantly from 352/1,000 to 368/1,000.
Patients who had adverse events had significantly longer hospital stays and were at higher risk for death. As the number of adverse events increased, so did the risk of death.
The authors noted that declines in events for AMI and HF patients might be a reflection of the numerous efforts and initiatives to improve care in those two conditions.
But they also found that concerted efforts to improve safety did not necessarily work. There was an increase in pressure ulcers in postsurgical patients, and no decline in ventilator-associated pneumonia in most patients, even though there have been initiatives focused on those conditions.
"Our finding of an increased adverse-event rate among surgical patients indicates a continuing challenge and identifies an important target for patient-safety initiatives," the researchers said.
The study was supported by the Agency for Healthcare Research and Quality as well as academic and federal grants. Several researchers were associated with Qualidigm, a consultancy that administers the Medicare database. No other relevant conflicts of interest were disclosed.
On Twitter @aliciaault
Adverse events decreased over the last decade for Medicare inpatients with acute myocardial infarction or heart failure but barely changed for those with pneumonia or conditions requiring surgery, according to an analysis of a Medicare database.
The improvements likely translated to 81,000 fewer adverse events for patients with acute MI (AMI) and heart failure (HF) from 2010 to 2011 alone, according to the study published Jan. 22 in the New England Journal of Medicine.
"Although this suggests that national efforts focused on patient safety have made some inroads, the lack of reductions across the board is disappointing," Yun Wang, Ph.D., of the Harvard School of Public Health, Boston, and his colleagues wrote.
The researchers examined whether hospitalized patients are any better off in light of the current focus on patient safety, including the launch of initiatives such as the American College of Surgeons’ National Surgical Quality Improvement Program and the federal government’s Surgical Infection Prevention Project.
They used three composite outcomes measures: the rate of occurrence for adverse events for which patients were at risk (for instance, only patients receiving warfarin were at risk for warfarin-related events); the proportion of patients with one or more adverse events; and the number of adverse events per 1,000 hospitalizations. They analyzed data on 61,523 patients who were discharged from 4,372 hospitals; the data were extracted from the Medicare Patient Safety Monitoring System database (N. Engl. J. Med. 2014:370;341-51).
The 61,523 patients included 11,399 with AMI, 15,374 with HF, 18,269 with pneumonia, and 16,481 with conditions requiring surgery. Postsurgical patients largely were being treated for joint replacement procedures and other osteoarthritis-related conditions, femur fracture, colon cancer, post-AMI procedures, or other forms of chronic ischemic heart disease.
From 2005-2006 to 2010-2011, AMI and HF patients saw a 1.3 percentage point decline in the rate of adverse events, from 5% to 3.7%. The proportion who had one or more such events decreased from 26% to 19%. The number of adverse events per 1,000 hospitalizations declined from 402 to 262 for AMI patients and from 235 to 167 for HF patients.
Infection-related and drug-related adverse events declined significantly in heart attack and HF patients. There was also a substantial improvement in postprocedure events in HF patients.
Postsurgical patients experienced slight increases in all three outcomes measures, in particular, increases in infection-related and postprocedural events such as venous thromboembolism, and cardiac and catheter-related events. The number of events per 1,000 hospitalizations for pneumonia patients increased insignificantly from 216 to 223. For postsurgical patients, the number of events increased insignificantly from 352/1,000 to 368/1,000.
Patients who had adverse events had significantly longer hospital stays and were at higher risk for death. As the number of adverse events increased, so did the risk of death.
The authors noted that declines in events for AMI and HF patients might be a reflection of the numerous efforts and initiatives to improve care in those two conditions.
But they also found that concerted efforts to improve safety did not necessarily work. There was an increase in pressure ulcers in postsurgical patients, and no decline in ventilator-associated pneumonia in most patients, even though there have been initiatives focused on those conditions.
"Our finding of an increased adverse-event rate among surgical patients indicates a continuing challenge and identifies an important target for patient-safety initiatives," the researchers said.
The study was supported by the Agency for Healthcare Research and Quality as well as academic and federal grants. Several researchers were associated with Qualidigm, a consultancy that administers the Medicare database. No other relevant conflicts of interest were disclosed.
On Twitter @aliciaault
Adverse events decreased over the last decade for Medicare inpatients with acute myocardial infarction or heart failure but barely changed for those with pneumonia or conditions requiring surgery, according to an analysis of a Medicare database.
The improvements likely translated to 81,000 fewer adverse events for patients with acute MI (AMI) and heart failure (HF) from 2010 to 2011 alone, according to the study published Jan. 22 in the New England Journal of Medicine.
"Although this suggests that national efforts focused on patient safety have made some inroads, the lack of reductions across the board is disappointing," Yun Wang, Ph.D., of the Harvard School of Public Health, Boston, and his colleagues wrote.
The researchers examined whether hospitalized patients are any better off in light of the current focus on patient safety, including the launch of initiatives such as the American College of Surgeons’ National Surgical Quality Improvement Program and the federal government’s Surgical Infection Prevention Project.
They used three composite outcomes measures: the rate of occurrence for adverse events for which patients were at risk (for instance, only patients receiving warfarin were at risk for warfarin-related events); the proportion of patients with one or more adverse events; and the number of adverse events per 1,000 hospitalizations. They analyzed data on 61,523 patients who were discharged from 4,372 hospitals; the data were extracted from the Medicare Patient Safety Monitoring System database (N. Engl. J. Med. 2014:370;341-51).
The 61,523 patients included 11,399 with AMI, 15,374 with HF, 18,269 with pneumonia, and 16,481 with conditions requiring surgery. Postsurgical patients largely were being treated for joint replacement procedures and other osteoarthritis-related conditions, femur fracture, colon cancer, post-AMI procedures, or other forms of chronic ischemic heart disease.
From 2005-2006 to 2010-2011, AMI and HF patients saw a 1.3 percentage point decline in the rate of adverse events, from 5% to 3.7%. The proportion who had one or more such events decreased from 26% to 19%. The number of adverse events per 1,000 hospitalizations declined from 402 to 262 for AMI patients and from 235 to 167 for HF patients.
Infection-related and drug-related adverse events declined significantly in heart attack and HF patients. There was also a substantial improvement in postprocedure events in HF patients.
Postsurgical patients experienced slight increases in all three outcomes measures, in particular, increases in infection-related and postprocedural events such as venous thromboembolism, and cardiac and catheter-related events. The number of events per 1,000 hospitalizations for pneumonia patients increased insignificantly from 216 to 223. For postsurgical patients, the number of events increased insignificantly from 352/1,000 to 368/1,000.
Patients who had adverse events had significantly longer hospital stays and were at higher risk for death. As the number of adverse events increased, so did the risk of death.
The authors noted that declines in events for AMI and HF patients might be a reflection of the numerous efforts and initiatives to improve care in those two conditions.
But they also found that concerted efforts to improve safety did not necessarily work. There was an increase in pressure ulcers in postsurgical patients, and no decline in ventilator-associated pneumonia in most patients, even though there have been initiatives focused on those conditions.
"Our finding of an increased adverse-event rate among surgical patients indicates a continuing challenge and identifies an important target for patient-safety initiatives," the researchers said.
The study was supported by the Agency for Healthcare Research and Quality as well as academic and federal grants. Several researchers were associated with Qualidigm, a consultancy that administers the Medicare database. No other relevant conflicts of interest were disclosed.
On Twitter @aliciaault