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Repeated surgery for recurrent dissection of the aorta
Summary
Reoperations for acute aortic dissection are common, with Marfan syndrome and unresected intimal tears increasing risk. Emergency surgery and extensive aortic replacement are significant factors during reoperation.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Vascular Surgery
Background:
- Acute dissection of the ascending aorta often requires palliative surgery to prevent pericardial rupture.
- Recurrent or evolving dissections are common complications, frequently necessitating reoperation and carrying a risk of mortality.
Purpose of the Study:
- To analyze the outcomes of reoperations for recurrent or evolving acute dissections of the ascending aorta.
- To identify risk factors associated with reoperation for aortic dissection and outcomes at reoperation.
Main Methods:
- Retrospective review of 133 patients undergoing initial surgery for acute ascending aortic dissection between 1970 and 1988.
- Analysis of 22 patients who underwent 26 reoperations for recurrent or evolving dissections during the same period.
Main Results:
- Hospital mortality for reoperations was 18%. Late mortality was 27%, with a linearized rate of 6% per patient-year.
- Actuarial risk of reoperation was 13.7% at 5 years and 21% at 10 years.
- Marfan syndrome and persistent intimal tears were key risk factors for reoperation; emergency status and thoraco-abdominal replacement were risk factors during reoperation.
Conclusions:
- Reoperation for aortic dissection carries significant risks, influenced by patient-specific factors and surgical approach.
- Identifying and addressing risk factors like Marfan syndrome and intimal tear persistence is crucial for improving outcomes in aortic dissection management.