BRIEF/TECHNICALREPORT INTERVENTIONAL Sentinel Angiographic Signs of Cerebral Hyperperfusion after Angioplasty and Stenting of Intracranial Atherosclerotic Stenosis: A Technical Note X M. Ghuman, X A.C.O. Tsang, X J.M. Klostranec, and X T. Krings ABSTRACT SUMMARY: Cerebral hyperperfusion syndrome is a serious complication of endovascular angioplasty and stent placement for long- standing intracranial stenosis, resulting in neurologic dysfunction, seizure, or reperfusion hemorrhage. Rigorous control of blood pressure is commonly used in the perioperative period to prevent cerebral hyperperfusion syndrome, but the optimal blood pressure is often arbitrary. We describe the angiographic features that reﬂect impaired cerebral autoregulation and microvascular transit abnormality, which may be used to gauge the optimal blood pressure parameters in the immediate postintervention period for prevention of cerebral hyperperfusion syndrome. ABBREVIATIONS: BP blood pressure; CHS cerebral hyperperfusion syndrome; ICAS intracranial atherosclerosis; ICH intracranial hemorrhage erebral hyperperfusion syndrome (CHS) is a well-described factors include baseline hypertension, carotid stenosis of 90%, 4-6 Ccomplication associated with cerebral revascularization after and impaired cerebrovascular reserve. These factors coupled extracranial angioplasty and stent placement. CHS following in- with maximal arteriolar dilation, compromised cerebral autoreg- tracranial angioplasty is less well-studied but is estimated in ob- ulation, and systemic hypertension translate to
American Journal of Neuroradiology – American Journal of Neuroradiology
Published: Sep 1, 2019
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