Enhancement of flow measurement for graft verification
| Autor: | Yury Y Vechersky, Vasily V Zatolokin, Aleksandra A Nenakhova, Boris N Kozlov, Vladimir M. Shipulin |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Pulmonary and Respiratory Medicine medicine.medical_specialty Time Factors Intra operative Coronary Artery Disease 030204 cardiovascular system & hematology Flow measurement 03 medical and health sciences 0302 clinical medicine Graft occlusion Risk Factors Coronary Circulation Internal medicine medicine Humans Vascular Patency Prospective Studies Coronary Artery Bypass Aged Cardiopulmonary Bypass Wound Closure Techniques business.industry Graft Occlusion Vascular General Medicine Middle Aged Sternotomy Treatment Outcome medicine.anatomical_structure 030228 respiratory system Flow (mathematics) Pulsatile Flow Cardiology Female Surgery Graft survival Cardiology and Cardiovascular Medicine business Blood Flow Velocity Artery |
| Zdroj: | Asian Cardiovascular and Thoracic Annals. 27:646-651 |
| ISSN: | 1816-5370 0218-4923 |
| Popis: | Background We aimed to evaluate multiple transit-time flow measurements during coronary artery bypass grafting. Methods Transit-time flow measurements were performed first on the arrested heart both with and without a proximal snare on the target coronary artery, second, after weaning from cardiopulmonary bypass, and third, before chest closure. Results Among the 214 grafts considered, 9 (4.2%) were patent and 6 (2.8%) were failing. In the failed grafts, an abnormal transit-time flow was found during the first measurement, in 5 (2.3%) cases with a proximal snare and in one (0.47%) without a snare. In these cases, technical errors with the distal anastomoses were found and immediately corrected. A problem with the proximal anastomosis was found in one graft during the second measurement and corrected right away. Bending due to excessive length was found in 2 (0.93%) grafts during the third measurement, and graft repositioning was performed. The first transit-time flow measurement showed that mean graft flow was significantly decreased with a proximal snare compared to without a proximal snare, throughout the entire coronary territory. Pulsatility index during the first transit-time flow measurement was higher with a proximal snare than without one. Conclusions The 3-time transit-time flow measurement strategy makes it possible to verify and immediately correct technical problems with coronary bypass grafts. |
| Databáze: | OpenAIRE |
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