Outcomes after thoracoabdominal aortic aneurysm repair with hypothermic circulatory arrest.

Abstract

OBJECTIVE:

Recent advances in endovascular surgery have put into question the role of open operative treatment of thoracoabdominal aortic aneurysms. In this context we evaluated our experience with thoracoabdominal aortic aneurysm repair using cardiopulmonary bypass and hypothermic circulatory arrest.

METHODS:

From January 1986 to December 2008, 218 patients (mean age, 63 ± 14 years) underwent thoracoabdominal aortic aneurysm repair with cardiopulmonary bypass and hypothermic circulatory arrest. The degree of repair was as follows: Crawford extent I, 57 (26%) patients; Crawford extent II, 91 (41%) patients; and Crawford extent III, 70 (32%) patients. Degenerative aneurysms were present in 160 (73%) patients. Eighteen (8%) patients underwent emergency operations.

RESULTS:

The mean durations of cardiopulmonary bypass and hypothermic circulatory arrest were 160 ± 44 and 31 ± 12 minutes, respectively. Stroke occurred in 8 (3.7%) patients, and spinal cord ischemic injury occurred in 10 (4.6%) patients (8 with paraplegia and 2 with paraparesis). Temporary dialysis for new-onset renal failure was required in 3.6% of hospital survivors. Thirty-day and 1-year mortality rates were 7.3% and 24.5%, respectively. After emergency operations, the 30-day mortality rate was 33.3% compared with 5.0% after elective operations (P = .001). Five- and 10-year survivals were 55% and 23%, respectively. Twenty-five patients required reoperation on the graft or contiguous aorta at a mean of 5 ± 3 years after the initial procedure. Five- and 10-year rates of freedom from reoperation were 87% and 60%, respectively.

CONCLUSIONS:

Cardiopulmonary bypass with hypothermic circulatory arrest can be safely used for thoracoabdominal aortic aneurysm repair, providing excellent protection against end-organ injury. Early mortality and morbidity rates do not exceed those reported for endovascular repair, with particularly favorable outcomes among patients undergoing elective operations.

• Authors: Alexander Kulik, Catherine F Castner, Nicholas T Kouchoukos
• Journal: The Journal of thoracic and cardiovascular surgery (J Thorac Cardiovasc Surg) Vol. 141 Issue 4 Pg. 953-60 (Apr 2011) ISSN: 1097-685X [Electronic] United States
• PMID: 20621310 (Publication Type: Journal Article)
• Copyright: Copyright © 2011 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.

Topics

• Adolescent
• Adult
• Aged
• Aged, 80 and over
• Aortic Aneurysm, Thoracic (mortality, surgery)
• Blood Vessel Prosthesis Implantation (adverse effects, mortality)
• Cardiopulmonary Bypass
• Circulatory Arrest, Deep Hypothermia Induced (adverse effects, mortality)
• Female
• Hospital Mortality
• Humans
• Kaplan-Meier Estimate
• Logistic Models
• Male
• Middle Aged
• Odds Ratio
• Paraplegia (etiology)
• Renal Dialysis
• Renal Insufficiency (etiology, therapy)
• Reoperation
• Retrospective Studies
• Risk Assessment
• Risk Factors
• Spinal Cord Ischemia (etiology)
• Stroke (etiology)
• Time Factors
• Treatment Outcome
• Young Adult