Results 42 cases suffered from acute intraoperative encephalocele,with the incidence rate of 28.0%,13 cases suffered from hypotension,29 from hypoxia and 17 from delayed hematoma.

• 结果术中有42例出现急性脑膨出；发生率28.；0%25；其中有13例低血压；29例低氧血症；17例发生了迟发性血肿。术后半年随访；仅8例死亡；病死率18