Hyperperfusion syndrome after clipping of an unruptured aneurysm by transsylvian approach: A Case Repot

Publication date: Available online 16 January 2017
Source:Interdisciplinary Neurosurgery
Author(s): Ryoichi Iwata, Kunikazu Yoshimura, Yoko Fujita, Tatsuo Uesaka, Hideyuki Oshige, Akio Asai
A 68-year-old man developed symptomatic hyperperfusion syndrome after clipping of an unruptured left anterior choroidal artery aneurysm using a transsylvian approach with temporary internal carotid artery occlusion for 3min. Although we preserved all adjacent vessels, the patient exhibited right hemiparesis and motor aphasia soon after the operation. Single photon emission computed tomography showed increased perfusion in the left cerebral hemisphere. These symptoms and hyperperfusion gradually resolved and disappeared completely within 2weeks. Hyperperfusion syndrome should be considered even after uneventful clipping of unruptured aneurysms.



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