摘要
Objectives preliminary experience on endarterectomy and To summarize our off-pump coronary bypass grafting in patients with diffuse coronary artery disease. Methods Over a 3year period, 53 patients （41 male） with diffuse coronary artery disease underwent off-pump coronary endarterectomy and bypass grafting at our institution. Patients＇ age ranged from 55 to 79 years. Prior to surgery, 70% of patients were in CCS angina class 2 （n=5） or 3 （n=32）, and nearly half of them （26/53） had history of myocardial infarction. Most patients （n= 50） had triple vessel lesions, with left main stem involvement in 9. Their left ventricular ejection fraction ranged from 26% to 65% （mean 52%）. At the end of operation, a flow-meter was routinely applied to measure the perfusion flow of each postendarterectomy graft. Results In total, 70 endarterectomies were performed in 53 patients, including 38 in left anterior descending artery （LAD）, 8 in circumflex artery and 24 in right coronary artery. Four operations were emergency or urgent in nature. Five patients received on-lay venous patch after endarterectomy in LAD, followed by left internal mammary artery （LIMA） grafting on the patch. The graft conduits included 53 LIMAs and 2 radial arteries, and saphenous veins in others. Mean number of grafts per patient was 3.75. The overall index of complet-eness of revascularization reached 1.03±0.07. There was no death in this group of patients during their post-operative hospital stay （mean duration = 9 days）. Intra-operatively, 63 （90%） out of the 70 grafts after coronary endarterectomy showed satisfactory flow. Two patients had perioperative neither experienced signifi myocardial infarctions but cant hemodynamic deteriations. Conclusions Off-pump coronary endarterectomy with bypass grafting is technically feasible and can be coronary improve zation. performed safely in patients with diffuse artery disease. This strategy may help to the completeness of myocardial revasculariation.
Objectives preliminary experience on endarterectomy and To summarize our off-pump coronary bypass grafting in patients with diffuse coronary artery disease. Methods Over a 3year period, 53 patients （41 male） with diffuse coronary artery disease underwent off-pump coronary endarterectomy and bypass grafting at our institution. Patients＇ age ranged from 55 to 79 years. Prior to surgery, 70% of patients were in CCS angina class 2 （n=5） or 3 （n=32）, and nearly half of them （26/53） had history of myocardial infarction. Most patients （n= 50） had triple vessel lesions, with left main stem involvement in 9. Their left ventricular ejection fraction ranged from 26% to 65% （mean 52%）. At the end of operation, a flow-meter was routinely applied to measure the perfusion flow of each postendarterectomy graft. Results In total, 70 endarterectomies were performed in 53 patients, including 38 in left anterior descending artery （LAD）, 8 in circumflex artery and 24 in right coronary artery. Four operations were emergency or urgent in nature. Five patients received on-lay venous patch after endarterectomy in LAD, followed by left internal mammary artery （LIMA） grafting on the patch. The graft conduits included 53 LIMAs and 2 radial arteries, and saphenous veins in others. Mean number of grafts per patient was 3.75. The overall index of complet-eness of revascularization reached 1.03±0.07. There was no death in this group of patients during their post-operative hospital stay （mean duration = 9 days）. Intra-operatively, 63 （90%） out of the 70 grafts after coronary endarterectomy showed satisfactory flow. Two patients had perioperative neither experienced signifi myocardial infarctions but cant hemodynamic deteriations. Conclusions Off-pump coronary endarterectomy with bypass grafting is technically feasible and can be coronary improve zation. performed safely in patients with diffuse artery disease. This strategy may help to the completeness of myocardial revasculariation.
