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Ann Thorac Surg 2005;80:523-529
© 2005 The Society of Thoracic Surgeons

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Original article: Cardiovascular

Long-Term Results After 27 Years of Surgical Treatment of Acute Type A Aortic Dissection

^a Department of Cardiothoracic Surgery, St. Antonius Hospital, Nieuwegein, the Netherlands
^b Department of Cardiology Research and Statistical Analysis, St. Antonius Hospital, Nieuwegein, the Netherlands
^c Department of Clinical Perfusion, St. Antonius Hospital, Nieuwegein, the Netherlands

Accepted for publication February 18, 2005.

^_* Address reprint requests to Dr Tan, St. Antonius Hospital, Department of Cardiothoracic Surgery, Koekoekslaan 1, 3435 CM, Nieuwegein, the Netherlands (Email: erwin.tan{at}tiscali.nl).

BACKGROUND: This study investigates the determinants of long-term outcome and modalities of late death after surgical treatment of acute type A dissection.

METHODS: Between 1974 and 2001, 315 consecutive patients were operated on for acute type A aortic dissection. Operative mortality was 22.9%. A series of 243 survivors of surgical treatment were followed up for as long as 27 years. Endpoints were death, cardiovascular reoperation, and neurologic events. Median follow-up was 4.5 years. Follow-up was 99.6% complete.

RESULTS: Cumulative survival of discharged patients was 96.4% ± 1.3%, 67.7% ± 4.7%, and 39.4% ± 12.0% at 1, 10, and 20 years, respectively. During follow-up, 47 patients died. Cause of death was cardiac failure in 7, hemorrhage due to rupture of the distal aorta in 7, stroke in 4, respiratory insufficiency in 4, sepsis in 3, malignancy in 2, and unknown in 20 patients. Multivariate analysis revealed advanced patient age and postoperative hemodialysis as perioperative indicators of late death (p < 0.05). Freedom from cardiovascular reoperation was 90.7% ± 2.0% at 1 year, 60.9% ± 5.1% at 10 years and 41.9% ± 15.0% at 20 years. A total of 58 patients required 86 cardiovascular reoperations; aortic root or ascending aorta replacement was performed in 20, distal ascending aorta and arch replacement in 13, descending aorta replacement in 6, thoracoabdominal aorta replacement in 7, abdominal aorta replacement in 7, and miscelleanous reoperations in 6 patients. Multivariate analysis revealed male sex and left coronary artery dissection as significant determinants for late cardiovascular reintervention (p <0.05). Cumulative incidence of stroke after 20 years was 3.8%.

CONCLUSIONS: Acute type A dissection represents an emergency situation with acceptable long-term results for discharged survivors of surgical treatment.

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