1. Transit time flow measurement of coronary bypass grafts before and after protamine administration
- Author
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Dror B. Leviner, Miriam von Mücke Similon, Carlo Maria Rosati, Andrea Amabile, Daniel J. F. M. Thuijs, Gabriele Di Giammarco, Daniel Wendt, Gregory D. Trachiotis, Teresa M. Kieser, A. Pieter Kappetein, Stuart J. Head, David P. Taggart, and John D. Puskas
- Subjects
Coronary artery bypass grafting ,Quality control ,Intraoperative graft flow measurement ,Surgery ,RD1-811 ,Anesthesiology ,RD78.3-87.3 - Abstract
Abstract Background Intraoperative graft assessment with tools like Transit Time Flow Measurement (TTFM) is imperative for quality control in coronary surgery. We investigated the variation of TTFM parameters before and after protamine administration to identify new benchmark parameters for graft quality assessment. Methods The database of the REQUEST (“REgistry for QUality AssESsmenT with Ultrasound Imaging and TTFM in Cardiac Bypass Surgery”) study was retrospectively reviewed. A per graft analysis was performed. Only single grafts (i.e., no sequential nor composite grafts) where both pre- and post-protamine TTFM values were recorded with an acoustical coupling index > 30% were included. Grafts with incomplete data and mixed grafts (arterio-venous) were excluded. A second analysis was performed including single grafts only in the same MAP range pre- and post- protamine administration. Results After adjusting for MAP, we found a small increase in MGF (29 mL/min to 30 mL/min, p = 0.009) and decrease in PI (2.3 to 2.2, p
- Published
- 2021
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