[Bleeding risk of intracranial vascular malformations].
In general, intracranial vascular malformations are divided into pial AVM, dural AV fistula, cavernoma and capillary telangiectasias. Developmental venous anomalies are sometimes thought to be vascular malformations. In fact, they are just a variant of venous drainage. In general, pial AVMs have a high risk of intracerebral bleeding. In dural AV fistulas, the individual bleeding risk can be effectively estimated by analyzing the venous drainage. Cavernomas have a low bleeding risk and the bleeding is rarely life-threatening. DVAs do not have any bleeding risk but 30 % are associated with cavernomas. Capillary telangiectasias also have no bleeding risk. Therefore, a radiological finding of an intracranial vascular malformation should not automatically elicit the reaction "time bomb in your head with a bleeding risk" but should be subjected to an analysis of the bleeding risk for the individual patient.
Wanke
I
I
Universitätsklinikum Essen, Inst. für diagnostische und interventionelle Radiologie und Neuroradiologie, Essen. isabel.wanke@uni-essen.de
Panagiotopoulos
V
V
Forsting
M
M
D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging / Q000209:etiology; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging* / Q000209:etiology; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging*; D010841:Pia Mater / Q000002:abnormalities / Q000098:blood supply; D011859:Radiography