BRAIN ARTERIOVENOUS MALFORMATIONS

Abstract

Brain arteriovenous malformations (AVMs) are composed of a network of abnormal arteries and veins lacking a capillary bed. They result in complex, dynamic lesions characterized by high-flow arteriovenous shunts. Since the first series, published in 1976 by M. G. Yaşargil, AVM surgery is considered a challenge. Treatment options for brain AVMs include microsurgical resection, endovascular embolization, radiosurgery or combination of these. In this chapter, we comprehensively review the epidemiology, clinical presentation, natural history, pathogenesis, neuroimaging, classification, and treatment options for brain AVMs. Complication avoidance are also described.