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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Leviner, Dror B. von Mücke Similon, Miriam Rosati, Carlo Maria Amabile, Andrea Thuijs, Daniel J. F. M. Giammarco, Gabriele Di Wendt, Daniel Trachiotis, Gregory D. Kieser, Teresa M. Kappetein, A. Pieter Head, Stuart J. Taggart, David P. Puskas, John D. |
| 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 < 0.001) were observed after the administration of protamine. These changes were especially notable for venous conduits and for CABG procedures performed on-pump. Conclusion The small changes in TTFM parameters observed before and after protamine administration seem to be clinically irrelevant, despite being statistically significant in aggregate. Our data do not support a need to perform TTFM measurements both before and after protamine administration. A single TTFM measurement taken either before or after protamine may suffice to achieve reliable data on each graft’s performance. Depending on the specific clinical situation and intraoperative changes, more measurements may be informative. Trial registration Clinical Trials Number: NCT02385344 , registered February 17th, 2015. |
| Related Links | https://cardiothoracicsurgery.biomedcentral.com/counter/pdf/10.1186/s13019-021-01575-y.pdf |
| Ending Page | 9 |
| Page Count | 9 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 17498090 |
| DOI | 10.1186/s13019-021-01575-y |
| Journal | Journal of Cardiothoracic Surgery |
| Issue Number | 1 |
| Volume Number | 16 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2021-07-09 |
| Access Restriction | Open |
| Subject Keyword | Cardiac Surgery Thoracic Surgery Coronary artery bypass grafting Quality control Intraoperative graft flow measurement |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surgery Cardiology and Cardiovascular Medicine Pulmonary and Respiratory Medicine |
| Journal Impact Factor | 1.5/2023 |
| 5-Year Journal Impact Factor | 1.6/2023 |
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