Continuous Monitoring of Spreading Depolarization and Cerebrovascular Autoregulation after Aneurysmal Subarachnoid Hemorrhage

Delayed cerebral ischemia (DCI) is a prominent complication after aneurysmal subarachnoid hemorrhage (aSAH). Although vasospasm of proximal cerebral arteries has been regarded as the main cause of DCI, vasospasm of distal arteries, microthrombosis, impaired autoregulation, cortical spreading depolar...

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Veröffentlicht in:Journal of stroke and cerebrovascular diseases 2016-10, Vol.25 (10), p.e171-e177
Hauptverfasser: Sugimoto, Kazutaka, MD, Shirao, Satoshi, MD, Koizumi, Hiroyasu, MD, Inoue, Takao, PhD, Oka, Fumiaki, MD, Maruta, Yuichi, PhD, Suehiro, Eiichi, MD, Sadahiro, Hirokazu, MD, Oku, Takayuki, MD, Yoneda, Hiroshi, MD, Ishihara, Hideyuki, MD, Nomura, Sadahiro, MD, Suzuki, Michiyasu, MD
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container_end_page e177
container_issue 10
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container_title Journal of stroke and cerebrovascular diseases
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creator Sugimoto, Kazutaka, MD
Shirao, Satoshi, MD
Koizumi, Hiroyasu, MD
Inoue, Takao, PhD
Oka, Fumiaki, MD
Maruta, Yuichi, PhD
Suehiro, Eiichi, MD
Sadahiro, Hirokazu, MD
Oku, Takayuki, MD
Yoneda, Hiroshi, MD
Ishihara, Hideyuki, MD
Nomura, Sadahiro, MD
Suzuki, Michiyasu, MD
description Delayed cerebral ischemia (DCI) is a prominent complication after aneurysmal subarachnoid hemorrhage (aSAH). Although vasospasm of proximal cerebral arteries has been regarded as the main cause of DCI, vasospasm of distal arteries, microthrombosis, impaired autoregulation, cortical spreading depolarization (CSD), and spreading ischemia are thought to be involved in DCI after aSAH. Here, we describe a patient with aSAH in whom CSD and cerebrovascular autoregulation were evaluated using simultaneous electrocorticography and monitoring of the pressure reactivity index (PRx) after surgical clipping of a ruptured posterior communicating artery aneurysm. In this patient, a prolonged duration of CSD and elevation of PRx preceded delayed neurological deficit. Based on this observation, we propose a relationship between these factors and DCI. Assessment of cerebrovascular autoregulation may permit detection of the inverse hemodynamic response to cortical depolarization. Detection of DCI may be achieved through simultaneous monitoring of CSD and PRx in patients with aSAH.
doi_str_mv 10.1016/j.jstrokecerebrovasdis.2016.07.007
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subjects Aneurysm, Ruptured - complications
Aneurysm, Ruptured - diagnosis
Aneurysm, Ruptured - physiopathology
Aneurysm, Ruptured - surgery
Angiography, Digital Subtraction
Arterial Pressure
Blood Pressure Determination
Brain Ischemia - diagnosis
Brain Ischemia - etiology
Brain Ischemia - physiopathology
Cardiovascular
Cerebral Angiography - methods
cerebrovascular autoregulation
Cerebrovascular Circulation
Computed Tomography Angiography
cortical spreading depolarization
Cortical Spreading Depression
delayed cerebral ischemia
Electrocorticography
Female
Homeostasis
Humans
Intracranial Aneurysm - complications
Intracranial Aneurysm - diagnosis
Intracranial Aneurysm - physiopathology
Intracranial Aneurysm - surgery
Intracranial Pressure
Magnetic Resonance Imaging
Middle Aged
Monitoring, Physiologic - methods
Neurology
Neurosurgical Procedures
Predictive Value of Tests
spreading ischemia
Subarachnoid hemorrhage
Subarachnoid Hemorrhage - diagnosis
Subarachnoid Hemorrhage - etiology
Subarachnoid Hemorrhage - physiopathology
Subarachnoid Hemorrhage - surgery
Time Factors
Treatment Outcome
vasospasm
title Continuous Monitoring of Spreading Depolarization and Cerebrovascular Autoregulation after Aneurysmal Subarachnoid Hemorrhage
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