Mechanical versus bioprosthetic valves in chronic dialysis: a systematic review and meta-analysis.

"Competing interests: Emilie Belley-Côté reports grants Roche, Bayer and Bristol-Myers Squibb-Pfizer, and is chair of the data safety monitoring board of the BEEF-BURGER trial. Matthias Bossard reports consulting fees from Abbott Vascular, Amgen, AstraZeneca, Daichii and Vifor. He also reports speaker fees from Abbott Vascular, Amgen, AstraZeneca, Mundipharma, Bayer, Daichii and Vifor. Richard Whitlock reports grants from Boehringer Ingelheim, Bayer and Abbott; consulting fees from Phasebio, Atricure, Cryolife; and participation on a data safety monitoring board with Phasebio. No other competing interests were declared."

"Funding: This study did not receive any funding or financial support. Emilie Belley-Côté is supported by a new investigator award from the Heart and Stroke Foundation of Canada and by the E. J. Moran Campbell internal medicine career award. Amit Garg is supported by the Dr. Adam Linton Chair in Kidney Health Analytics and a Clinician Investigator Award fom the Canadian Institutes of Health Research. Richard Whitlock is supported by the Canada Research Chair in Cardiovascular Surgery from the Canadian Insitutes of Health Research."

"We registered our protocol on PROSPERO, registration number CRD42017081863. Appendix 1, Section 1, available at www.canjsurg.ca/lookup/doi/10.1503/cjs.001121/tab-related-content), presents the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) checklist. Study registration:: PROSPERO no. CRD42017081863"