Author(s)

Yoriko Kato, Takatoshi Sorimach, Yasushi Ito, Yukihiko Fujii, Nobutaka Kawahara

Department of Neurosurgery, Brain Research Institute, University of Niigata, Niigata, Japan.
Department of Neurosurgery, Yokohama City University, Yokohama, Japan.

The frequency of neurologic complications of cerebral angiography is 0.3%-2.3%, and the frequency of the persistent neurologic deficits that remain over 7-10 days is 0.4%-0.5%. On the other hand, all neurologic complications of balloon test occlusion (BTO) have been reported in 0%-8.3% and especially in 1.6%-1.7% of symptomatic neurologic complications. There are a few reports concerning a seizure related to cerebral angiography and BTO. We report a case of prolonged seizures and left hemiparesis during and after BTO of the right internal carotid artery. The patient showed repeated focal seizures and prolonged left hemiparesis lasting for approximately 2 months. Computed tomography and magnetic resonance imaging demonstrated no abnormal findings. Suspected mechanisms of seizure were a cerebral blood flow change induced by BTO and neurotoxicity of accumulated contrast medium. A combination of prolonged focal seizures and subsequent hemiparesis is a rare complication of BTO, which should be taken into consideration during BTO.

Balloon Test Occlusion, Cerebral Angiography, Hemiparesis, Seizure

Kato, Y. , Sorimach, T. , Ito, Y. , Fujii, Y. and Kawahara, N. (2014) Cerebral Angiography Induced Prolonged Focal Seizure and Hemiparesis during Carotid Artery Balloon Test Occlusion. Open Journal of Modern Neurosurgery, 4, 126-130. doi: 10.4236/ojmn.2014.43022.