Abstract 113: Regional Variation In The Receipt Of Coronary Revascularization Following Diagnostic Catheterization In British Columbia

• DOI: 10.1161/circoutcomes.6.suppl_1.a113
• Publication Date: 2022-03-20T00:30:26Z
• Authors: Carmen H Ng; Aihua Pu; Lillian Ding; Ruth Zhang; Andrew Kmetic
• Keywords: Cardiac catheterization; Disease registry

Background: Differences in the management of coronary artery disease have previously been found to be partly attributable non-clinical factors, but there few studies examining this issue Canada. Variation revascularization rates across regions province British Columbia (BC) has observed not studied. The BC Cardiac Registry allows a unique opportunity explore factors that contribute variation and associated clinical outcomes. Methods: All residents aged 20 years older who received diagnostic catheterization between 2008/09 2010/11 one five hospitals with laboratory were identified from Registry, longitudinal registry all cardiac procedures performed province. Patients followed determine hospital level (PCI or CABG) within 90 days catheterization. Risk-adjustment was logistic regression model whether cathing an independent predictor rates. cause mortality following calculated Cox used effect on 1-year mortality. Results: cohort included 32,585 cases, which 73.9% (24,076) days. Unadjusted ranged 64.6% (2,730 4,224) 83.8% (5,135 6,130). Among cases revascularization, PCI:CABG ratios 3.1 4.7. measuring association receipt demonstrated significant differences, despite controlling for demographic risk factors. OR receiving at B compared A nearly 3-fold (OR=2.8, 95% CI 2.6 - 3.1). There also differences after risk-adjustment PCI vs. CABG. Hospital C more likely treat patients (OR=1.3, 1.2-1.5) A. Exploration interaction terms among STEMI patients. probability 1 year 0.035 0.067 hospitals, based Kaplan-Meier estimation. modeling revealed adjusting patient characteristics. Conclusions: substantial regional practice Columbia, Identification subgroups where practices significant, such as use CABG patients, offer opportunities follow-up quality improvement.