Neurol Neurochir Pol
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Neurol Neurochir Pol · Mar 2006
[The microsurgical treatment of the supratentorial arteriovenous malformations. Part II--complications].
The aim of this study was an analysis of complications after surgical treatment of the cerebral supratentorial arteriovenous malformations (AVM), assessment of their clinical sequelae, and attempt to find factors influencing their occurrence. ⋯ The most common causes of postoperative deterioration are hemodynamic disturbances after AVM removal and manipulation in the eloquent area. Hemodynamic disturbances worsened the prognosis significantly, and were the only cause of mortality (3.4%). However, massive intraoperative hemorrhage and operation in the eloquent area did not influence the outcome significantly. Risk factors for intraoperative hemorrhage are steal effect and intraventricular penetration of AVM. Risk factors for hemodynamic disturbances are feeding AVM from MCA and complex venous drainage.