title: Natural history of arteriovenous malformations: presentation, risk of hemorrhage and mortality.
abstract: Brain arteriovenous malformations (AVMs) are highly complex vascular lesions, which may become symptomatic by causing hemorrhagic stroke, epilepsy, chronic headache and/or focal neurological deficits. An increasing number of AVMs are also found incidentally in MRI and CT scans performed for other reasons. It is mandatory to understand the natural history and prognosis of these malformations when evaluating the risks that may be associated with the treatment. In this review, we discuss the symptomatology, hemorrhage risk and mortality associated with their natural course.
authors: Department of Neurosurgery, Helsinki University Central Hospital, 266, 00029 HUS, Helsinki, Finland. aki.laakso@hus.fi
authors: Aki
authors: A
authors: Laakso
authors: Reza
authors: R
authors: Dashti
authors: Seppo
authors: S
authors: Juvela
authors: Mika
authors: M
authors: Niemelä
authors: Juha
authors: J
authors: Hernesniemi
mesh_terms: D001165:Arteriovenous Malformations / Q000150:complications / Q000175:diagnosis / Q000401:mortality; D001921:Brain / Q000473:pathology; D004827:Epilepsy / Q000175:diagnosis / Q000209:etiology / Q000401:mortality; D006470:Hemorrhage / Q000175:diagnosis / Q000209:etiology / Q000401:mortality; D006801:Humans; D012307:Risk Factors