Intracranial hemorrhage, factors associated with

Table 9.1 Factors Associated with Intracranial Hemorrhage Based on Multiple Logistic Regression...

The presence of a stenosis on the venous drainage of a brain AVM is associated with an increased risk of bleeding (Miyasaka et al. 1992 Nataf et al. 1997), probably due to proximal venous hypertension. This factor was also identified in the large series of patients analyzed by Mansmann et al. (2000), but venous stenosis was not statistically associated with intracranial hemorrhage for cortical AVMs. Venous dilatation was correlated to an increased risk of hemorrhagic presentation in dural arteriovenous fistulas (CoGNARD et al. 1995). 

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