PMID- 35665516 OWN - NLM STAT- MEDLINE DCOM- 20220719 LR - 20220720 IS - 1932-8737 (Electronic) IS - 0160-9289 (Print) IS - 0160-9289 (Linking) VI - 45 IP - 7 DP - 2022 Jul TI - Mechanical or biologic prostheses for mitral valve replacement: A systematic review and meta-analysis. PG - 701-716 LID - 10.1002/clc.23854 [doi] AB - Either a mechanical or bioprosthetic valve is used in patients undergoing mitral valve replacement (MVR). However, the optimal mitral prosthesis remains controversial. The aim of this meta-analysis was thus to compare outcomes between mechanical mitral valve replacement (MVRm) and bioprosthetic mitral valve replacement (MVRb) for MVR patients. We searched Embase, PubMed, Web of Science, and Cochrane Library databases from January 1, 2000 to October 31, 2021 for studies that directly compared surgical outcomes of MVRm and MVRb. A total of 22 studies with 35 903 patients were included in the meta-analysis (n = 23 868 MVRm and n = 12 035 MVRb). The MVRm group displayed lower long-term all causes mortality (HR, 0.84; 95% confidence interval [CI]: 0.77-0.91; p < .0001; I(2) = 51%), and fewer mitral reoperation (hazard ratio [HR]: 0.34; 95% CI: 0.23-0.50; p < .00001; I(2) = 74%) than MVRb group. However, the MVRm group was associated with a greater risk of major bleeding events (HR: 1.21; 95% CI: 1.14-1.29; p < .00001; I(2) = 0%), stroke and systemic embolism (HR: 1.20; 95% CI: 1.10-1.32; p < .0001; I(2) = 0%) in matched or adjusted data. No significant difference was observed between MVRm and MVRb on operative mortality in matched/adjusted group (risk ratios: 0.83; 95% CI: 0.66-1.05; p = .12; I(2) = 0%). The results were consistent with patients aged under 70 years old. Patients who received a MVRm is associated with 16% lower risk of long-term mortality and 66% lower risk of mitral reoperation, but 20% greater risk of stroke or systemic embolism, 21% greater risk of major bleeding compared with MVRb in matched/adjusted studies group, which were consistent to patients younger than the age of 70 years who underwent MVR. CI - (c) 2022 The Authors. Clinical Cardiology published by Wiley Periodicals LLC. FAU - Yu, Jun AU - Yu J AUID- ORCID: 0000-0001-9823-4726 AD - Department of Structural Heart Disease, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China. FAU - Qiao, En AU - Qiao E AD - Department of Structural Heart Disease, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China. FAU - Wang, Wei AU - Wang W AD - Department of Structural Heart Disease, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China. LA - eng PT - Journal Article PT - Meta-Analysis PT - Review PT - Systematic Review DEP - 20220605 PL - United States TA - Clin Cardiol JT - Clinical cardiology JID - 7903272 RN - 0 (Biological Products) SB - IM MH - Aged MH - *Biological Products MH - *Bioprosthesis/adverse effects MH - *Heart Valve Prosthesis/adverse effects MH - *Heart Valve Prosthesis Implantation MH - Hemorrhage/etiology MH - Humans MH - Mitral Valve/diagnostic imaging/surgery MH - Reoperation/adverse effects MH - Retrospective Studies MH - *Stroke/etiology MH - Treatment Outcome PMC - PMC9286334 OTO - NOTNLM OT - bioprosthetic OT - mechanical OT - mitral valve replacement (MVR) COIS- Authors declare no conflict of interest. EDAT- 2022/06/07 06:00 MHDA- 2022/07/20 06:00 PMCR- 2022/06/05 CRDT- 2022/06/06 14:34 PHST- 2022/04/25 00:00 [revised] PHST- 2022/03/05 00:00 [received] PHST- 2022/05/16 00:00 [accepted] PHST- 2022/06/07 06:00 [pubmed] PHST- 2022/07/20 06:00 [medline] PHST- 2022/06/06 14:34 [entrez] PHST- 2022/06/05 00:00 [pmc-release] AID - CLC23854 [pii] AID - 10.1002/clc.23854 [doi] PST - ppublish SO - Clin Cardiol. 2022 Jul;45(7):701-716. doi: 10.1002/clc.23854. Epub 2022 Jun 5.