**8.4 Indication of surgical revascularization**

Surgical revascularization is done to increase the cerebral blood flow and restore reserve capacity. The increase in cerebral blood flow prevents recurrent cerebral infarction. The indications for surgical revascularization are:


being a progressive disorder. Risk–benefit ratio determines the feasibility of the surgical intervention in such patients.

4.Role of revascularization surgery in hemorrhagic stroke is controversial.

With increased understanding of MMD being familial in at least some of the world's regions, it is being suggested that asymptomatic siblings and family members should be screened for moyamoya pathology. Whenever such a condition is detected, it should be managed surgically, keeping in mind the illness's progressive nature.
