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Search: authors:"Jürg Schmidli"

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

Introduction In outcome research, incomplete follow-up is a major, yet potentially correctable source of bias. Cross-sectional surveys may theoretically increase completeness of follow-up, but low response rates are reported typically. We investigated whether a pre-notification letter improved patient availability for follow-up phone interviews and thereby improved cross...

Percentile indices for assessing changes in heavy precipitation events

Many climate studies assess trends and projections in heavy precipitation events using precipitation percentile (or quantile) indices. Here we investigate three different percentile indices that are commonly used. We demonstrate that these may produce very different results and thus require great care with interpretation. More specifically, consideration is given to two intensity...

Long-Term Results after Proximal Thoracic Aortic Redo Surgery

Objective To evaluate early and mid-term results in patients undergoing proximal thoracic aortic redo surgery. Methods We analyzed 60 patients (median age 60 years, median logistic EuroSCORE 40) who underwent proximal thoracic aortic redo surgery between January 2005 and April 2012. Outcome and risk factors were analyzed. Results In hospital mortality was 13%, perioperative...

Totally arterial off-pump vs. on-pump coronary revascularization: comparison of early outcome

Our objective was to assess differences in early outcome after completely arterial myocardial revascularization with (on-pump coronary artery bypass grafting or ONCAB) or without cardiopulmonary bypass (off-pump coronary artery bypass grafting or OPCAB). Fifty-eight OPCAB and 91 ONCAB patients receiving exclusively arterial grafts were analyzed. OPCAB patients had more single...