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Randomized controlled comparison of cross-sectional survey approaches to optimize follow-up completeness in clinical studies

Contributions Conceptualization: Regula S. von Allmen, Ju?rg Schmidli, Hendrik T. Tevaearai, Florian Dick. Data curation: Regula S. von Allmen, Christian Tinner. Formal analysis: Regula S. von Allmen, Christian ... Tinner, Ju?rg Schmidli, Hendrik T. Investigation: Regula S. von Allmen, Florian Dick. Methodology: Regula S. von Allmen, Christian Tinner, Ju?rg Schmidli, Hendrik T. Tevaearai, Project administration

A prospective study on an innovative online forum for peer reviewing of surgical science

Background Peer review is important to the scientific process. However, the present system has been criticised and accused of bias, lack of transparency, failure to detect significant breakthrough and error. At the British Journal of Surgery (BJS), after surveying authors’ and reviewers’ opinions on peer review, we piloted an open online forum with the aim of improving the peer...

Completeness of Follow-Up Determines Validity of Study Findings: Results of a Prospective Repeated Measures Cohort Study

Background Current reporting guidelines do not call for standardised declaration of follow-up completeness, although study validity depends on the representativeness of measured outcomes. The Follow-Up Index (FUI) describes follow-up completeness at a given study end date as ratio between the investigated and the potential follow-up period. The association between FUI and the...

Transcarotid aortic valve-in-valve implantation for degenerated stentless aortic root conduits with severe regurgitation: a case series

OBJECTIVES Transcatheter aortic valve implantation (TAVI) is routinely performed via the transfemoral and the transapical route. Subclavian and direct aortic access are described alternatives for TAVI. Recently, the transcarotid approach has been shown to be feasible among patients with limited vascular access and severe native aortic valve stenosis. We aim to investigate the...