Neurologybrain arteriovenous malformationIntracranial Hemorrhage
Lower-than-Expected Hemorrhage Risk From Unruptured Brain AVMs: MARS Clarifies Natural History and Key Predictors
By MedXY|Dec 12, 2025
The MARS multicenter cohort (n=3030) found a lower annual intracranial hemorrhage risk (1.40%/yr) for unruptured brain AVMs than commonly cited. Older age, associated arterial aneurysms, and cerebellar/deep supratentorial location increased
