抄録
We present three cases of cerebellar hemorrhage following aneurysmal surgery for the anterior communicating artery.
Postoperative cerebellar hemorrhage located remotely from the supratentorial site is a rare complication. In a review of the literature, we identified 29 such cases, including 23 cases of aneurysmal surgery. We examined the possible etiologies for cerebellar hemorrhage in these reports. Almost all the reports described CSF overdrainage by epidural suction, causing cerebellar hemorrhage. These cases showed a specific configuration in which the hematoma spread transversely along the cerebellar folia and strictly curvilinearly on CT scan. The location of this hematoma consisting with the position of cerebellar hemispheric bridging veins.
We suggest that the mechanism of this complication is dislocation of the dependent part of the cerebellum, and destruction of the bridging veins on the tentorial surface causing CSF overdrainage.
The strict management of draining is important to prevent this complication.
