[Combined therapy of ventriculo-cisternal irrigation with external decompression in acute ruptured aneurysm].

Vasospasm after clipping of an acute ruptured aneurysm plays an important role in its prognosis. An effective therapy for vasospasm has not been established. We had attempted to remove the subarachnoid clot, which probably caused vasospasm, by ventriculo-cisternal irrigation and had not so good results (A: a group without decompression). Therefore, we have performed a therapy combined ventriculo-cisternal irrigation with external decompression (B: a group with decompression). We wish to report the efficacy of external decompression for an acute ruptured aneurysm. Evaluation of the outcome is due to Table 2. 55% of A group and 80% of B group have a better grade than "fair". Furthermore, a significant difference lies between A and B group associated with symptomatic vasospasm (brain ischemia caused by vasospasm). Namely, A group has all poor or dead cases but B group has 80% of the cases better than "fair". We concluded that relieving ICP by external decompression could suppress the aggravation of the post operative symptomatic vasospasm.