Journal
CORONARY ARTERY DISEASE
Volume 34, Issue 1, Pages 42-51Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MCA.0000000000001200
Keywords
coronary artery bypass graft; mortality; meta-analysis; transcatheter aortic valve replacement; periprocedural complications
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This meta-analysis investigated the impact of previous coronary artery bypass graft (CABG) on the outcomes of transcatheter aortic valve replacement (TAVR). The results showed that among patients undergoing TAVR, a history of prior CABG was not associated with an increased risk of periprocedural complications (except for acute myocardial infarction) or short-term mortality.
BackgroundThe effect of prior coronary artery bypass graft (CABG) on the outcomes of transcatheter aortic valve replacement (TAVR) remains incompletely characterized. In this meta-analysis, we investigated the impact of prior CABG on TAVR outcomes. MethodsA systematic search was conducted in PubMed, Google Scholar, and Cochrane databases from inception to 24 July 2022, using the search terms 'TAVR', 'CABG', 'peri-procedural complications', and 'mortality'. The major outcomes were peri-procedural complications, intraprocedural mortality, 30-day mortality, and 30-day cardiac mortality. We used random-effects models to aggregate data and to calculate pooled incidence and risk ratios with 95% confidence intervals (CIs). ResultsAmong 116 results from the systematic search, a total of 8 studies (5952 patients) were included. Compared to patients without previous CABG, patients with prior CABG undergoing TAVR were younger, predominantly male sex, had more comorbidities, higher rates of peri-procedural myocardial infarction (MI) [relative risk (RR) 1.93; 95% CI, 1.09-3.43; P = 0.03], but lower rates of stroke (RR 0.71; 95% CI, 0.51-0.99; P = 0.04), major vascular complications (RR 0.70; 95% CI, 0.51-0.95; P = 0.02), and major bleeding (RR 0.70; 95% CI, 0.56-0.88; P = 0.002). There were no significant differences between the two cohorts in rates of pacemaker implantation, cardiac tamponade, acute kidney injury, intra-procedural mortality, 30-day mortality, and 30-day cardiac mortality. ConclusionAmong patients undergoing TAVR, a history of prior CABG was not associated with an increased risk of periprocedural complications (except for acute MI) or short-term mortality compared to those without CABG.
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