Why the study?
What are the determinants of blood flow in aortic-coronary saphenous vein bypass grafts?
What are the determinants of blood flow in aortic-coronary saphenous vein bypass grafts?
Blood flow in aortocoronary saphenous vein bypass grafts occurs primarily in diastole and is optimized by bidirectional flow and normal myocardium.
May guide intraoperative graft flow assessment in CABG; leaves open impact on patency and outcomes.
Blood flow in 226 aortocoronary vein bypass grafts in 125 patients was measured with an electromagnetic flow meter. Blood flow occurred primarily in diastole. Mean flow for each of the three main coronary arteries was 63 cc/min with a wide range for individual coronary arteries. The higher ranges of flow could be obtained if (a) bidirectional flow could be established with an end-to-side vein-coronary anastomosis in the presence of a proximal obstruction, and (b) the myocardium was normal. With optimal conditions, the flow in vein grafts will increase with time.
No takes yet. Share an insight, caveat, or question.
Warren D. Johnson (1970) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: