To clarify the effect of mild hypothermia for ruptured aneurysm surgery, perioperative factors, intraoperative hemodynamic parameters and prognosis were compared between patients managed under normothermia and mild hypothermia.
There were no differences in age, sex, preoperative Hunt and Hess grade, location of aneurysms and duration of temporary occlucsion. Cardiac index (normothermia: mild hypothermia, 3.8±0.6: 2.9±0.9l•min-1•m-2, p<0.01) and oxygen saturation in jugular bulb (61±6.8:55±7.1%, p<0.05) were lower in mild hypothermic group. There was no difference in neurological outcome.
Protective effect of mild hypothermia was not confirmed in this study. Poorer systemic and cerebral circulation in hypothermic group may contribute the negative results.
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