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Coronary bypass surgery for unstable angina: a five-year follow-up
Insights
Early surgery for unstable angina (UA) after coronary arteriography shows excellent long-term outcomes. Patients experienced high survival rates and improved functional capacity, suggesting surgical intervention is superior to medical management for UA.
Area of Science:
- Cardiology
- Cardiac Surgery
- Vascular Medicine
Background:
- Unstable angina (UA) is a critical condition requiring prompt intervention.
- Optimal management strategies for UA remain a focus of cardiovascular research.
- Early revascularization is increasingly considered for high-risk cardiac patients.
Purpose of the Study:
- To evaluate the safety and long-term efficacy of early surgical intervention for unstable angina.
- To compare the outcomes of surgical management versus medical management for UA.
- To assess functional recovery and survival rates following early coronary artery bypass grafting in UA patients.
Main Methods:
- Prospective study of 125 consecutive unstable angina patients.
- Early coronary arteriography followed by prompt surgical revascularization in 100 eligible patients.
- Long-term follow-up (mean 57 months, up to 87 months) assessing survival and functional status.
Main Results:
- No early deaths occurred among operated patients.
- Actuarial 5-year survival rate was 92%.
- 88% of patients returned to work; 62% achieved functional class I, 23% functional class II at 5 years.
Conclusions:
- Early coronary arteriography and prompt surgical intervention are safe for unstable angina patients.
- Surgical management offers superior long-term survival and functional outcomes compared to medical therapy.
- This approach provides significant benefits for patients with unstable angina.
Abstract:
A total of 125 consecutive patients who were hospitalized for unstable angina underwent early coronary arteriography. One hundred of them were suitable for operation and were operated on promptly. There were no early deaths. The patients who had surgery have been followed up to 87 months (means, 57 months). Eighty-eight percent of the patients who had surgery returned to work. The actuarial five-year survival rate of those patients was 92%. At an average of five years, conditions of 62% of those who survived surgery were classified as functional class I, and 23% were class II. These data indicate that patients with unstable angina can safely undergo early arteriography and operation with late results that appear to be superior to the results of medical management of similar patients.