Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort Study

Background Hospital‐ and physician‐level variation for selection of percutaneous coronary intervention versus coronary artery bypass grafting (CABG) for patients with coronary artery disease has been associated with outcome differences. However, most studies excluded patients treated medically. Meth...

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Main Authors: Todd Wilson, Matthew T. James, Danielle Southern, Bryan Har, Michelle M. Graham, Neil Brass, Kevin Bainey, Paul W. M. Fedak, Tolulope T. Sajobi, Stephen B. Wilton
Format: Article
Language:English
Published: Wiley 2024-09-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
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Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.123.035356
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author Todd Wilson
Matthew T. James
Danielle Southern
Bryan Har
Michelle M. Graham
Neil Brass
Kevin Bainey
Paul W. M. Fedak
Tolulope T. Sajobi
Stephen B. Wilton
author_facet Todd Wilson
Matthew T. James
Danielle Southern
Bryan Har
Michelle M. Graham
Neil Brass
Kevin Bainey
Paul W. M. Fedak
Tolulope T. Sajobi
Stephen B. Wilton
author_sort Todd Wilson
collection DOAJ
description Background Hospital‐ and physician‐level variation for selection of percutaneous coronary intervention versus coronary artery bypass grafting (CABG) for patients with coronary artery disease has been associated with outcome differences. However, most studies excluded patients treated medically. Methods and Results From 2010 to 2019, adults with 3‐vessel or left main coronary artery disease at 3 hospitals (A, B, C) in Alberta, Canada, were categorized by treatment with medical therapy, percutaneous coronary intervention, or CABG. Multilevel regression models determined the proportion of variation in treatment attributable to patient, physician, and hospital factors, and survival models assessed outcomes including death and major adverse cardiovascular events over 5 years. Of 22 580 patients (mean age, 67 years; 80% men): 6677 (29%) received medical management, 9171 (41%) percutaneous coronary intervention, and 6732 (30%) CABG. Hospital factors accounted for 10.8% of treatment variation. In adjusted models (site A as reference), patients at sites B and C had 49% (95% CI, 44%–53%) and 43% (95% CI, 37%–49%) lower rates of medical therapy, respectively, and 31% (95% CI, 24%–38%) and 32% (95% CI, 24%–40%) lower rates of CABG. During 5.0 years median follow‐up, 3287 (14.6%) patients died, with no intersite mortality differences. There were no between‐site differences in acute coronary syndromes or stroke; patients at sites B and C had 24% lower risk (95% CI, 13%–34% and 11%–35%, respectively) of heart failure hospitalization. Conclusions Hospital‐level variation in selection of percutaneous coronary intervention, CABG, or medical therapy for patients with complex coronary artery disease was not associated with differences in 5‐year mortality rates. Research and quality improvement initiatives comparing revascularization practices should include medically managed patients.
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spelling doaj-art-2a419240acc84f96bf768ee7e888dcc32024-11-28T12:39:09ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802024-09-01131810.1161/JAHA.123.035356Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort StudyTodd Wilson0Matthew T. James1Danielle Southern2Bryan Har3Michelle M. Graham4Neil Brass5Kevin Bainey6Paul W. M. Fedak7Tolulope T. Sajobi8Stephen B. Wilton9Department of Medicine University of Calgary Alberta CanadaDepartment of Medicine University of Calgary Alberta CanadaCentre for Health Informatics, Cumming School of Medicine University of Calgary Alberta CanadaDepartment of Cardiac Sciences University of Calgary Alberta CanadaMazankowski Alberta Heart Institute, University of Alberta Edmonton CanadaCKHui Heart Centre University of Alberta Alberta CanadaMazankowski Alberta Heart Institute, University of Alberta Edmonton CanadaDepartment of Cardiac Sciences University of Calgary Alberta CanadaDepartment of Community Health Sciences University of Calgary Alberta CanadaDepartment of Community Health Sciences University of Calgary Alberta CanadaBackground Hospital‐ and physician‐level variation for selection of percutaneous coronary intervention versus coronary artery bypass grafting (CABG) for patients with coronary artery disease has been associated with outcome differences. However, most studies excluded patients treated medically. Methods and Results From 2010 to 2019, adults with 3‐vessel or left main coronary artery disease at 3 hospitals (A, B, C) in Alberta, Canada, were categorized by treatment with medical therapy, percutaneous coronary intervention, or CABG. Multilevel regression models determined the proportion of variation in treatment attributable to patient, physician, and hospital factors, and survival models assessed outcomes including death and major adverse cardiovascular events over 5 years. Of 22 580 patients (mean age, 67 years; 80% men): 6677 (29%) received medical management, 9171 (41%) percutaneous coronary intervention, and 6732 (30%) CABG. Hospital factors accounted for 10.8% of treatment variation. In adjusted models (site A as reference), patients at sites B and C had 49% (95% CI, 44%–53%) and 43% (95% CI, 37%–49%) lower rates of medical therapy, respectively, and 31% (95% CI, 24%–38%) and 32% (95% CI, 24%–40%) lower rates of CABG. During 5.0 years median follow‐up, 3287 (14.6%) patients died, with no intersite mortality differences. There were no between‐site differences in acute coronary syndromes or stroke; patients at sites B and C had 24% lower risk (95% CI, 13%–34% and 11%–35%, respectively) of heart failure hospitalization. Conclusions Hospital‐level variation in selection of percutaneous coronary intervention, CABG, or medical therapy for patients with complex coronary artery disease was not associated with differences in 5‐year mortality rates. Research and quality improvement initiatives comparing revascularization practices should include medically managed patients.https://www.ahajournals.org/doi/10.1161/JAHA.123.035356coronary artery diseasedeathpractice variationrevascularization
spellingShingle Todd Wilson
Matthew T. James
Danielle Southern
Bryan Har
Michelle M. Graham
Neil Brass
Kevin Bainey
Paul W. M. Fedak
Tolulope T. Sajobi
Stephen B. Wilton
Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort Study
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
coronary artery disease
death
practice variation
revascularization
title Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort Study
title_full Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort Study
title_fullStr Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort Study
title_full_unstemmed Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort Study
title_short Hospital and Physician Variability in Revascularization Decisions and Outcomes for Patients With 3‐Vessel and Left Main Coronary Artery Disease: A Population‐Based Cohort Study
title_sort hospital and physician variability in revascularization decisions and outcomes for patients with 3 vessel and left main coronary artery disease a population based cohort study
topic coronary artery disease
death
practice variation
revascularization
url https://www.ahajournals.org/doi/10.1161/JAHA.123.035356
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