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[Repeated operations in recurrent stenocardia after aortocoronary bypass]
Insights
Recurrent angina pectoris after coronary artery bypass grafting is often caused by graft failure. Reoperation can be a viable option for select patients, with satisfactory short-term outcomes despite a 5.6% hospital mortality rate.
Area of Science:
- Cardiovascular Surgery
- Cardiac Surgery Outcomes
- Coronary Artery Disease Management
Background:
- Increasing numbers of primary coronary artery bypass grafting (CABG) operations and longer postoperative periods correlate with a rise in recurrent angina pectoris.
- Severe angina pectoris (Functional Class III-IV) necessitates evaluation for reoperation in a subset of post-CABG patients.
Purpose of the Study:
- To investigate the causes of recurrent angina pectoris following initial CABG.
- To evaluate the feasibility and immediate outcomes of reoperation in patients with recurrent severe angina.
Main Methods:
- Retrospective analysis of 990 patients undergoing CABG over 9 years.
- Coronary angiography performed in 61 patients with recurrent severe angina to assess aortocoronary shunt patency.
- Reoperation performed in 18 selected patients, with data collected on outcomes and mortality.
Main Results:
- Impaired patency of aortocoronary shunts was identified as the primary cause of angina recurrence.
- Reoperations were performed an average of 2 years after the initial surgery.
- The immediate results of reoperations were deemed satisfactory, with a hospital mortality rate of 5.6%.
Conclusions:
- Graft failure is the leading cause of recurrent angina after CABG.
- Reoperation for recurrent severe angina is associated with satisfactory short-term results.
- Careful patient selection and surgical expertise are crucial for successful reoperation outcomes.
Abstract:
With growth of the number of primary operations and duration of the postoperative period, there was an obvious tendency towards an increase of the absolute number of patients with recurrent angina pectoris. Among 990 patients who were operated on successively during a period of 9 years, 9% had severe Functional Class III-IV angina pectoris, in whom coronary bypass graphy was indicated to determine the possibility of undertaking a reoperation. The examination was conducted in 61 patients with recurrent marked angina pectoris. Impaired patency of the aortocoronary shunts was found to be the main cause of recurrence. At present, reoperations were carried out in 18 patients, 2 years after the first operation, on the average. The authors claim the immediate results of the reoperations to be satisfactory. The hospital mortality was 5.6%.