Abstract:

Objective To compare the postoperative complications of self-expanding valve (SEV) versus balloon-expanding valve (BEV) in transcatheter aortic valve replacement. Methods Articles reporting the advantages and disadvantages concerning the postoperative complications of SEV versus BEV in TAVR were searched in the English-language databases, such as PubMed and Cochrance, and Chinese-language databases, such as China National Knowledge Infrastructure (CNKI), Wanfang and VIP. Results A total of 9 articles, involving 5, 939 patients were included. There was a significant difference in the postoperative all-cause mortality between the SEV and BEV groups (risk ratio [RR]: 1.34, 95% confidence interval [CI]: 1.08, 1.66). SEV outperformed BEV in the postoperative mortality. There were no significant differences in the incidence postoperative stroke, proportion of pacemaker implantation, and the incidence of moderate-to-severe perivalvular leak between the SEV and BEV groups (P>0.05). Conclusion SEV is superior to BEV in all-cause mortality, but comparable in postoperative stroke, moderate-to-severe perivalvular leakage, pacemaker implantation and other postoperative complications.

Key words: transcatheter aortic valve replacement, self-expanding valves, balloon-expandable valves, complications