Does Stenosis Severity of Native Vessels Influence Bypass Graft Patency? A Prospective Fractional Flow Reserve–Guided Study

摘要: Background After coronary bypass surgery, occlusion or narrowing of grafts may occur over time. The present study prospectively evaluated the angiographic patency after 1 year in relation to preoperative and functionally severity lesion assessed by fractional flow reserve measurement test hypothesis that grafting less critical stenosis be a risk factor for early dysfunction graft. Methods comprised 164 patients eligible artery surgery who were not suitable percutaneous intervention with at least one intermediate lesion. Fractional was measured all lesions grafted establish if significant. surgeon blinded results these measurements. One angiography performed graft patency. Results At year, 8.9% on significant occluded, 21.4% nonsignificant occluded. There no difference angina class repeat interventions between without occluded grafts. Conclusions is significantly higher than lesions; however, this finding has clinical relevance because patent did experience an excess interventions.