Thoracoabdominal aortic aneurysm repair: a prospective cohort study of 121 cases |
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Authors: | Cinà Claudio S Laganà Antonello Bruin Gerard Ricci Chris Doobay Boodendra Tittley Jacques Clase Catherine M |
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Affiliation: | (1) Division of Vascular Surgery, McMaster University, Hamilton, Ontario, Canada, CA;(2) Department of Anaesthesia, McMaster University, Hamilton, Ontario, Canada, CA;(3) Division of Nephrology, Department of Internal Medicine, McMaster University, Hamilton, Ontario, Canada, CA |
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Abstract: | Between October 1990 and June 2001, 121 patients underwent surgery for thoracoabdominal aortic aneurysm (TAAA)—99 procedures were elective and 22 were for ruptured aneurysms. Between October 1990 and September 1997, the clamp-and-go technique was used for all aneurysms (43 patients), and from October 1997, clamp-and-go was reserved for type IV TAAAs, and atriofemoral bypass (AFB) was used for types I, II, and III (78 patients). Overall hospital mortality was 21.4% (26/121)—12% for the elective group and 64% for the ruptured group. Hospital mortality was associated with age (67 years in survivors vs. 73 years in nonsurvivors, p = 0.03), FEV1<2 L (RR 4.1, p = 0.01), CSF drainage (RR 5.0, p = 0.03), type II aneurysms vs. other aneurysms (RR 3.7, p = 0.02), and relative inexperience (mean rank in the series was 52 in survivors vs. 30 in nonsurvivors, p = 0.01). The overall incidence of neurologic deficits due to spinal cord ischemia was 6.2% (paraplegia in 4.4%). Temporary dialysis was necessary in 13% of patients, and chronic dialysis in 2%. In long-term follow-up of patients undergoing elective repair, 5-year survival was 80% and median survival was 7.9 years. Mortality and neurologic deficits have improved over time as a consequence of either increased surgical experience, the adoption of a protocolized strategy for repair, or secular improvements in ICU care. Long-term survival after elective TAAA repair is excellent. |
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