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http://dx.doi.org/10.5762/KAIS.2017.18.8.84

Venous Congestion in Cerebral Hyperperfusion Syndrome: A Case Report  

Bong, Jeong Bin (Department of Neurology, Chosun University School of Medicine)
Kang, Hyun Goo (Department of Neurology, Chosun University School of Medicine)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.8, 2017 , pp. 84-87 More about this Journal
Abstract
Cerebral hyperperfusion syndrome (CHS) is a rare complication that can occur when conducting stent insertion or endarterectomy in patients with carotid artery stenosis and is known to be caused by various mechanisms when the blood volume abruptly increases. The main clinical symptoms are unilateral headache, hypertension, seizure, and focal neurologic deficit. Subarachnoid hemorrhage and parenchymal hemorrhage may lead to permanent impairment or death in severe cases. CHS can be predicted by using transcranial Doppler, perfusion magnetic resonance imaging, and single photon emission computed tomography. In our case report, a patient developed CHS subsequent to significant venous congestion caused by carotid artery stent insertion. The patient had preexisting, symptomatic bilateral carotid artery stenosis. Venous congestion occurs when the direction of blood flow changes because of increased blood volume in patients with well-developed collateral vessels. We believe that CHS can be predicted from this finding. This study reports the possibility that CHS could be confirmed by cerebral angiography after insertion of the internal carotid stent.
Keywords
Cerebral hyperperfusion syndrome; Carotid artery stent; Collateral vessels; Digital subtraction angiography; Venous congestion;
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