The authors experienced 12 operative cases of moyamoya disease and the following conclusion was obtained.
A) As to indication of reconstructive operation:
1. Best indication: TIA or RIND or completed stroke with minor neurological deficits
2. Preferable indication : Cerebral hemorrhage and/or intraventricular hemorrhage with minor neurological deficits
3. No indication at the present time: Incidentally discovered, headache only, seizure only, mental retardation in adults
B) As to ideal operative methods:
STA-MCA bypass with encephalo-myo-synangiosis seemed to be the most preferable operative methods. In addition, usefulness of encephalo-arterio-synangiosis (EAS) as a supplemental operative method was emphasized.
