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European Journal of Cardio-Thoracic Surgery, Vol 2, 185-191, Copyright © 1988 by European Association for Cardio-thoracic Surgery

ARTICLES

Should circulatory arrest with deep hypothermia be revised in aortic arch surgery?

C Deville, X Roques, G Fernandez, N Laborde, E Baudet and F Fontan
Hopital Cardiologique du Haut-Leveque, Pessac-Bordeaux, France.

Our experience (January 1982-May 1987) concerns 41 patients, operated upon for aortic dissection (30 patients) or aneurysm (11 patients) using circulatory arrest with deep hypothermia. There were 24 male and 17 female patients (mean age: 55 years 9 months, range 32-73 years). The mean circulatory arrest time in minutes was 41 +/- 3 (mean rectal temperature before circulatory arrest was 18.4 degrees C +/- 0.3 degrees C). Total (24 patients) or partial (16 patients) replacement of the aortic arch was performed. One patient with a sacciform aneurysm had the aortic wall defect closed. Hospital mortality was 22% +/- 7% (9 patients): 8 of 30 patients with aortic dissection (26.6%) and 1 of 11 patients with aortic aneurysm (9%). Neurological complications occurred in 3 patients. These data lead us to prefer circulatory arrest with deep hypothermia as the method of choice for aortic arch surgery. However, when a short circulatory arrest time (less than 30 min) for the repair is foreseeable, mild hypothermia (20 degrees C-24 degrees C) may be preferred. In patients who will not tolerate excessive cardiopulmonary bypass times, expected difficulties with the repair should suggest mild hypothermia and short circulatory arrest in easier cases or moderate hypothermia with brachiocephalic perfusion in the others.

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