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Coronary bypass for acute rest angina. 10 year follow-up
Insights
Coronary bypass surgery for angina showed a higher mortality rate but preserved lifestyle for most patients. Recurrences due to graft closure necessitated reoperation in some cases.
Area of Science:
- Cardiology
- Cardiac Surgery
Background:
- Acute angina at rest poses significant risks.
- Coronary artery disease often involves multiple stenoses.
Purpose of the Study:
- To evaluate long-term outcomes after coronary bypass surgery for acute angina.
- To assess mortality, symptom recurrence, and quality of life post-surgery.
Main Methods:
- A 6.5 to 10.3-year follow-up of 100 consecutive patients.
- Analysis of mortality rates, angina recurrence, reoperation rates, and return to work.
Main Results:
- Mortality rates were 1.4% per postoperative year, 2.2 times higher than controls.
- Angina was mostly relieved, but 20 patients required reoperation due to graft closure.
- 91% of patients resumed work, with 52 continuing at age 61, eight years later.
Conclusions:
- Coronary bypass surgery can preserve lifestyle and return patients to work.
- Late graft closure is a significant cause of angina recurrence and reoperation.
- Improved diagnostic and therapeutic methods may yield better long-term results.
Abstract:
We followed up for 6.5 to 10.3 years 100 consecutive patients who had had coronary bypasses (1.8 per person) for acute angina at rest. There was a mean of 2.1 coronary stenoses per person. Mortality rates were 1.4% per postoperative year, or 2.2 times that of normal subjects of the same age. Angina was usually satisfactorily relieved but severe recurrences, mainly from late graft closure, required reoperation in 20 patients. Life style has been preserved; and 91 resumed work, with 52 at an average age of 61 years continuing to work eight years later. Better results that these may be obtained from the improved diagnostic and therapeutic methods of the 1980's.