National Healthcare Quality and Disparities Report
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Search All Research Studies
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- Adverse Events (2)
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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 8 of 8 Research Studies DisplayedCzosek RJ, Anderson JB, Baskar S
Predictors and outcomes of heart block during surgical stage I palliation of patients with a single ventricle: a report from the NPC-QIC.
This study investigated patient and surgical risks of heart block and its effect on 12-month transplant-free survival in children with a single ventricle. In total, 1423 patients were identified from the National Pediatric Cardiology Improvement Collaborative with and without heart block. One-year outcomes were analyzed. A very small percentage (2%) developed heart block during their surgical admission. Associated risk factors for block included heterotaxy syndrome and atrial flutter/fibrillation. Patients with complete heart block had lower 12-month survival, which wasn’t true for patients with second degree block. At 12 months of age, 43% of patients with heart block died and were more likely to experience mortality than patients without heart block.
AHRQ-funded; HS021114.
Citation: Czosek RJ, Anderson JB, Baskar S .
Predictors and outcomes of heart block during surgical stage I palliation of patients with a single ventricle: a report from the NPC-QIC.
Heart Rhythm 2021 Nov;18(11):1876-83. doi: 10.1016/j.hrthm.2021.05.019..
Keywords: Children/Adolescents, Heart Disease and Health, Cardiovascular Conditions, Surgery, Palliative Care, Risk, Outcomes
Patel DK, Duncan MS, Shah AS
Association of cardiac rehabilitation with decreased hospitalization and mortality risk after cardiac valve surgery.
Investigators sought to characterize cardiac rehabilitation (CR) enrollment after cardiac valve surgery and its association with outcomes, including hospitalizations and mortality. Subjects were all fee-for-service Medicare beneficiaries undergoing open cardiac valve surgery in 2014, identified by inpatient diagnosis codes for open aortic, mitral, tricuspid, and pulmonary valve surgery. They found that fewer than half of Medicare beneficiaries undergoing cardiac valve surgery enrolled in CR programs, and there were marked racial/ethnic disparities among those who do. They recommend further study on barriers to CR enrollment in this population.
AHRQ-funded; HS022990.
Citation: Patel DK, Duncan MS, Shah AS .
Association of cardiac rehabilitation with decreased hospitalization and mortality risk after cardiac valve surgery.
JAMA Cardiol 2019 Dec;4(12):11887-1301. doi: 10.1001/jamacardio.2019.4032..
Keywords: Cardiovascular Conditions, Heart Disease and Health, Rehabilitation, Hospitalization, Surgery, Mortality, Risk, Elderly
Kundi H, Popma JJ, Valsdottir LR
The value of claims-based nontraditional risk factors in predicting long-term mortality after MitraClip procedure.
The goals of this study were to identify nontraditional risk factors coded in administrative claims data and to evaluate their ability to improve prediction of long-term mortality in patients undergoing percutaneous mitral valve repair. Patients undergoing transcatheter mitral valve repair using MitraClip implantation were identified among Medicare fee-for-service beneficiaries; researchers used nested Cox regression models to identify claims codes predictive of long-term mortality. Four groups of variables were introduced: cardiac, noncardiac, and nontraditional risk factors, and presentation characteristics. The authors conclude that risk-prediction models, which include nontraditional risk factors as identified in claims data, can be used to predict long-term mortality risk more accurately in patients who have undergone MitraClip procedures.
AHRQ-funded; HS024520.
Citation: Kundi H, Popma JJ, Valsdottir LR .
The value of claims-based nontraditional risk factors in predicting long-term mortality after MitraClip procedure.
Can J Cardiol 2018 Dec;34(12):1648-54. doi: 10.1016/j.cjca.2018.10.002..
Keywords: Cardiovascular Conditions, Elderly, Mortality, Heart Disease and Health, Medicare, Risk, Surgery
Dunn T, Saeed MJ, Shpigel A
The association of preoperative cardiac stress testing with 30-day death and myocardial infarction among patients undergoing kidney transplantation.
This study examined whether the use of preoperative cardiac stress testing of patients undergoing kidney transplantation reduced 30-day- death and myocardial infarction post-transplantation. ESRD patients 40 years or older with primary Medicare insurance between 2006 and 2013 were identified using the United States Renal Data System. In a matched cohort of 17,304 patients, there was little difference in 30-day post-transplantation mortality and myocardial infarction between those receiving a stress test and those who did not.
AHRQ-funded; HS019455.
Citation: Dunn T, Saeed MJ, Shpigel A .
The association of preoperative cardiac stress testing with 30-day death and myocardial infarction among patients undergoing kidney transplantation.
PLoS One 2019 Feb;14(2):e0211161. doi: 10.1371/journal.pone.0211161..
Keywords: Transplantation, Kidney Disease and Health, Heart Disease and Health, Cardiovascular Conditions, Chronic Conditions, Risk, Surgery
Amin AP, Miller S, Rahn B
Reversing the "risk-treatment paradox" of bleeding in patients undergoing percutaneous coronary intervention: risk-concordant use of bleeding avoidance strategies is associated with reduced bleeding and lower costs.
Bleeding avoidance strategies (BAS) are effective, but are paradoxically used less often with patients at high risk of bleeding. This article describes the implementation of an intervention in a St. Louis, MO, hospital intended to reverse the bleeding risk-treatment paradox. Temporal trends in BAS use and the association of risk-concordant BAS use with bleeding as well as hospital costs of percutaneous coronary intervention were examined. Patient-centered care that aimed directly toward making treatment-related decisions based on predicted risk of bleeding led to a more risk-concordant use of BAS and a reversal of the risk-treatment paradox. The authors conclude that larger multicentered studies will be needed to corroborate these results.
AHRQ-funded; HS022481.
Citation: Amin AP, Miller S, Rahn B .
Reversing the "risk-treatment paradox" of bleeding in patients undergoing percutaneous coronary intervention: risk-concordant use of bleeding avoidance strategies is associated with reduced bleeding and lower costs.
J Am Heart Assoc 2018 Nov 6;7(21):e008551. doi: 10.1161/jaha.118.008551..
Keywords: Adverse Events, Patient Safety, Heart Disease and Health, Risk, Surgery, Cardiovascular Conditions, Healthcare Costs
Bangalore S, Guo Y, Samadashvili Z
Revascularization in patients with multivessel coronary artery disease and severe left ventricular systolic dysfunction: everolimus-eluting stents versus coronary artery bypass graft surgery.
This study compared outcomes for patients with multivessel disease and severe left ventricular systolic dysfunction (ejection fraction </=35%) who underwent either percutaneous coronary intervention (PCI) with everolimus-eluting stent or coronary artery bypass graft surgery (CABG). It found that PCI with everolimus-eluting stent had comparable long-term survival in comparison with CABG. PCI was associated with higher risk of myocardial infarction (in those with incomplete revascularization) and repeat revascularization.
AHRQ-funded; HS023683.
Citation: Bangalore S, Guo Y, Samadashvili Z .
Revascularization in patients with multivessel coronary artery disease and severe left ventricular systolic dysfunction: everolimus-eluting stents versus coronary artery bypass graft surgery.
Circulation 2016 May 31;133(22):2132-40. doi: 10.1161/circulationaha.115.021168.
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Keywords: Cardiovascular Conditions, Heart Disease and Health, Surgery, Outcomes, Risk
Holcomb CN, Graham LA, Richman JS
The incremental risk of coronary stents on postoperative adverse events: a matched cohort study.
The objective of this study was to determine the incremental risk of coronary stents on adverse events in surgical patients and whether it varies over time from stent placement. It concluded that surgery after coronary stent placement is associated with an approximate 2 percent absolute risk for postoperative heart attack but no difference in mortality compared with nonstented matched controls.
AHRQ-funded; HS013852.
Citation: Holcomb CN, Graham LA, Richman JS .
The incremental risk of coronary stents on postoperative adverse events: a matched cohort study.
Ann Surg 2016 May;263(5):924-30. doi: 10.1097/sla.0000000000001246..
Keywords: Adverse Events, Risk, Surgery, Patient Safety, Heart Disease and Health, Cardiovascular Conditions
Abdelsattar ZM, Hendren S, Wong SL
The impact of untreated obstructive sleep apnea on cardiopulmonary complications in general and vascular surgery: a cohort study.
The purpose of this study was to determine whether preoperatively untreated obstructive sleep apnea (OSA) affects postoperative outcomes. It found that compared with treated OSA, untreated OSA was independently associated with more cardiopulmonary complications (risk-adjusted rates 6.7 percent versus 4.0 percent; particularly unplanned reintubations and myocardial infarction.
AHRQ-funded; HS000053.
Citation: Abdelsattar ZM, Hendren S, Wong SL .
The impact of untreated obstructive sleep apnea on cardiopulmonary complications in general and vascular surgery: a cohort study.
Sleep 2015 Aug;38(8):1205-10. doi: 10.5665/sleep.4892..
Keywords: Sleep Problems, Surgery, Patient Safety, Risk, Heart Disease and Health, Respiratory Conditions, Chronic Conditions