Local or general anesthesia for TAVI surgery? An updated systematic review and meta-analysis
Abstract Background The choice of anesthesia for transcatheter aortic valve implantation (TAVI) is still under controversial. This systematic review and meta-analysis was performed to evaluate the safety of local anesthesia (LA) with or without conscious sedation (CS) and general anesthesia (GA) for the TAVI-procedure. Methods This meta-analysis is registered with PROSPERO (CRD42021221777). We searched OVID, PUBMED, EMBASE, Web of Science databases to collect all the related studies published from January 1, 2002 to December 31, 2020. The primary outcome measures were hospital length of stay, operation time, 30-day mortality, use of cardiovascular drugs, permanent pacemaker (PPM) implantation rate, stroke rate, the incidence of myocardial infarction (MI), incidence of acute kidney injury (AKI), major bleeding (MB) rate, rate of procedural success. Results A total of 33 studies (3 RCT studies, 23 retrospective cohort studies, 4 prospective cohort studies, 3 case-control studies) including 23244 patients were analyzed. There were no significant statistically differences between LA and GA with respect to PPM [OR=0.99, 95% CI (0.88, 1.11), P=0.88], shock [OR=0.91, 95% CI (0.69, 1.21), P=0.52], MI [OR=0.89, 95% CI (0.52, 1.53), P=0.68], AKI [OR=1.26, 95% CI (0.99, 1.62), P=0.06], rate of procedural success [OR=0.66, 95% CI (0.43, 1.03), P=0.06]. However, compared to GA, LA for TAVI was associated with a significantly shorter hospital length of stay [WMD=−2.45, 95% CI (−2.77, −2.13), P<0.ehab724.16701], a reduction in procedure time [WMD=−12.32, 95% CI (−13.78, −10.87), P<0.ehab724.16701], a reduction in using of cardiovascular drugs [OR=0.52, 95% CI (0.35, 0.78), P=0.002] and in MB [OR=0.59, 95% CI (0.46, 0.75), P<0.0001], reduced 30-day mortality rate [OR=1.19, 95% CI (1.00, 1.42), P=0.05]. Conclusion This Systematic review and meta-analysis showed that compared to GA, LA for TAVI can reduce hospital length of stay, procedure time, 30-day mortality rate, use of cardiovascular drugs, and MB rate, but no significant differences in PPM, shock, MI, AKI, and the rate of procedural success. FUNDunding Acknowledgement Type of funding sources: None.