[Adult Hemorrhagic Moyamoya Disease: Physiopathology and Treatment]

Takeshi Funaki1, Hideo Chihara

  • 1Department of Neurosurgery, Kyoto University Graduate School of Medicine.

The Japan Adult Moyamoya(JAM) Trial revealed the preventive effect of direct bypass on rebleeding in patients with hemorrhagic moyamoya disease. Subsequent studies have elucidated the significance of periventricular anastomosis, a fragile periventricular collateral manifestation, as a source and predictor of hemorrhage. Practitioners should confirm the reduction in periventricular anastomosis after bypass surgery for hemorrhagic moyamoya disease through optimal imaging assessments.