The authors present their experiences with 11 patienxs with the aortic dissection, in whom urgent replacement of the ascending aorta and aortic arch was performed with deep hypohermic circulatory arrest. Early mortality was 36.4 % and 3 of 4 patients who died had low cardiac output syndrome before surgery. Severe reeurologic complication was observed in one patienx who was hemiparetic before surgery (9.1 %).

        Key words: deep hypothermia - circulatory arrest - dissection