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EL-Andari R, Bozso SJ, Fialka NM, Kang JJ, Nagendran J. Does sex impact outcomes after mitral valve surgery? A systematic review and meta-analysis. Scand J Surg 2022; 111:99-109. [DOI: 10.1177/14574969221124468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background and objective: The published literature investigating the impact of sex on outcomes after mitral valve (MV) surgery has demonstrated inferior outcomes for females over males. However, the true relationship between sex and outcomes after MV surgery continues to be poorly understood. Materials: PubMed, Medline, and Embase were systematically searched for articles published from 1 January 2005 to 1 August 2021. This systematic review included retrospective and prospective studies investigating the relationship between sex and outcomes after MV surgery. In all, 2068 articles were initially screened and 12 studies were included in this review. Results: Few studies were adequately powered or structured to investigate this topic. Few studies propensity matched patients or isolated for surgical approach. In individual studies, females experienced increased rates of short-term and long-term mortality and increased 1-year mortality in the pooled data. Males experienced increased rates of required pacemaker insertion. The remaining rates of morbidity and mortality did not differ significantly between males and females. Conclusions: This review identified increased rates of 1-year mortality in the pooled data for females, while males had increased rates of pacemaker insertion. Despite this, the absence of propensity matching and isolating for surgical approach has introduced confounding variables that impair the ability of the included studies to interpret the results found in the current literature. Studies isolating for surgical approach, propensity matching patients, and examining outcomes with long-term follow-up are required to elucidate the true nature of this relationship.
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Affiliation(s)
- Ryaan EL-Andari
- Division of Cardiac Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Sabin J. Bozso
- Division of Cardiac Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Nicholas M. Fialka
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Jimmy J.H. Kang
- Division of Cardiac Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Jeevan Nagendran
- Cardiac Surgeon Minimally Invasive and Transcatheter Valve SurgeryAssociate Professor of Surgery Division of Cardiac Surgery Department of Surgery Mazankowski Alberta Heart Institute University of Alberta 4-108A Li Ka Shing Health Research Centre 8602 - 112 Street Edmonton AB T6G 2E1 Canada
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OUP accepted manuscript. Eur J Cardiothorac Surg 2022; 62:6524995. [DOI: 10.1093/ejcts/ezac073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 12/30/2021] [Accepted: 01/24/2022] [Indexed: 11/15/2022] Open
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