Abstract
Thirty cases of Moyamoya disease were reported. Six cases of them were surgically treated.
The external intracranial arterial anastomosis were performed in 4 patients with Moyamoya disease. Repeated angiography showed excellent patency of anastomosis. This is no doubt that the creation of STA-MCA anastomosis increases blood flow and thus prevents cerebral ischemia due to occlusion of the circle of Willis, in addition, preventive effect of rebleeding was noted even in cases with intracerebral hematomas.
Four autopsy cases and two cases complicated cerebral aneurysm and renovascular hypertension were discussed in special reference to the pathogenesis of this disease.
