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Adjunctive coronary endarterectomy: improved safety in modern cardiac surgery
1Division of Cardiovascular and Thoracic Surgery, University of Minnesota, Minneapolis, USA.
Insights
Coronary endarterectomy in modern cardiac surgery is safer than previously believed. This procedure effectively achieves complete revascularization in select patients, improving outcomes and survival rates.
Area of Science:
- Cardiovascular Surgery
- Interventional Cardiology
Background:
- Coronary endarterectomy has seen improved safety due to advances in cardiac surgery.
- Previous perceptions may have underestimated the safety of this procedure.
Purpose of the Study:
- To evaluate the safety and efficacy of coronary endarterectomy in contemporary cardiac surgery.
- To assess long-term outcomes, including revascularization, survival, and symptom relief.
Main Methods:
- Retrospective review of 64 patients undergoing coronary endarterectomy between August 1988 and February 1992.
- Analysis of patient demographics, surgical details, postoperative complications, and long-term follow-up data.
- Comparison of endarterectomy graft patency with conventional grafts.
Main Results:
- The postoperative infarction rate was 5%, with incomplete occlusion increasing risk.
- 91% of survivors were angina-free, and 80% had no heart failure symptoms at follow-up (mean 46 months).
- Actuarial survival rates were 89% at 1 year and 71% at 5 years; previous infarction was linked to higher mortality.
Conclusions:
- Coronary endarterectomy is a safe and effective option for complete revascularization in selected patients.
- The procedure demonstrates favorable long-term clinical outcomes and survival.
- Modern surgical techniques have enhanced the safety profile of coronary endarterectomy.
Background:
Advances in cardiac surgery have led to an improved safety record for coronary endarterectomy.
Methods:
We retrospectively reviewed the cases of 64 patients who underwent adjunctive coronary endarterectomy between August 1988 and February 1992. There were 44 men, and the mean age was 65 years. Forty-one patients (64%) had sustained a previous infarction. Overall, endarterectomy was performed on 76 vessels, and the right coronary system was involved in 46 (61%).
Results:
The postoperative infarction rate was 5%. Incomplete occlusion ( < 90% stenosis) of the endarterectomized vessel significantly increased the risk of infarction (p < 0.05). There were two early deaths (3%). The mean follow-up was 46 months. Clinically, 91% of the survivors were angina free, and 80% had no symptoms of heart failure at the time of follow-up. Left ventricular function had improved in 36% of those restudied (5/14). A total of 17 recatheterizations were done at a mean interval of 19 months after operation. The endarterectomy graft patency rate was 80% (16/20) compared with 78% (28/36) for conventional grafts ( p = not significant). The actuarial survival rates were 89% and 71% at 1 year and 5 years, respectively. A history of previous infarction was significantly associated with higher long-term mortality (p < 0.02).
Conclusions:
Overall, these results demonstrate that in modern cardiac surgery, coronary endarterectomy is safer than previously thought and can be used effectively to achieve complete revascularization in selected patients.
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