From September 1992 to May 1996, 38 patients ranging in age from 23 to 78, were operated for aortic dissection at Asan medical center. There were 21 men and 17 women. The underlying aortic pathology were acute aortic dissection in 23, chronic
aortic
dissection in 15. Eight patients had Marfan syndrome. In 34 cases of DeBakey type I, II patients, femoral artery and vein and/or right atrial auricle were used as cannulation site. With deep hypothermic circulatory arrest(esophageal temperature
12±2.5℃) and retrograde cerebral perfusion fo cold oxygenated blood through SVC, we replaced the ascending aorta and the part of arch if necessary. The mean duration of the total circulatory arrest time was 25±1.7 minutes. In 4 cases of
DeBakey
type
III patients, we replaced descending thoracic aorta or thoracoabdominal aorta without shunt or bypass under normothermia wi6th an average 30±1.5 minutes' aortic cross clamp time. One death(2.6%) occurred on the twenty-second postoperative day
owing to
asphyxia related to ulcer bleeding. Postoperative complications were myocardial infarction with transient left peroneal palsy in 1 case, transient lower extremity weakness in 1 case and prolonged ventilatory support in l case. Two patients
required
reoperation due to retrograde extended dissection and aortic insufficiency. There was no late death with an average 25 months' follow-up period.
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