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Saphenous vein grafting for angina
Insights
Saphenous-vein bypass grafting improved angina in 96% of patients. Preoperative factors like unstable angina and impaired heart function increased complication risks, but myocardial protection reduced them.
Area of Science:
- Cardiovascular Surgery
- Cardiac Surgery Outcomes
- Coronary Artery Bypass Grafting
Background:
- Saphenous-vein bypass grafting is a common treatment for coronary artery disease.
- Identifying preoperative factors predicting complications is crucial for patient management.
Purpose of the Study:
- To analyze outcomes and complications in patients undergoing saphenous-vein bypass grafting.
- To identify preoperative predictors of postoperative complications.
- To evaluate the impact of myocardial protection strategies on outcomes.
Main Methods:
- Retrospective analysis of 200 consecutive patients undergoing saphenous-vein bypass grafting.
- Assessment of preoperative factors including unstable angina, multivessel disease, and left ventricular function.
- Evaluation of postoperative complications such as infarction, low cardiac output, and arrhythmia.
- Comparison of outcomes with and without cardioplegic myocardial protection.
Main Results:
- Overall in-hospital mortality was low (1%).
- Unstable angina, multivessel disease, and impaired left ventricular function were associated with higher complication rates.
- Cardioplegic myocardial protection reduced complications in patients with impaired left ventricular function.
- Early follow-up showed 96% of patients were angina-free or virtually angina-free.
- Three patients experienced infarction within nine months post-surgery.
Conclusions:
- Saphenous-vein bypass grafting is effective in relieving angina.
- Preoperative risk stratification is essential for managing potential complications.
- Cardioplegic myocardial protection offers benefits, particularly for high-risk patients.
Abstract:
An analysis of 200 consecutive patients treated by saphenous-vein bypass grafting has been carried out. One patient died in hospital, and one died nine months after surgery. Some of the factors which predispose to postoperative complications can be defined preoperatively. These are unstable angina, multiple vessels disease, and impaired left ventricular function. The complications of postoperative infarction, low cardiac output, and arrhythmia were higher in the presence of these factors. The use of cardioplegic myocardial protection lessened the incidence of complications in patients with impaired left ventricular function. Early follow-up revealed 96% of patients truly or virtually angina-free. Three patients suffered infarction within nine months of operation.