| Time course of cerebral hemodynamics in aneurysmal subarachnoid hemorrhage. | |
| | |
MedLine Citation:
|
PMID: 22102409 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BACKGROUND.: Vascular complications are important causes of neurologic sequelae among survivors of aneurysmal subarachnoid hemorrhage (SAH). However, little is known about the time course of cerebral hemodynamics and outcome in patients with and without angiographically confirmed cerebral vasospasm. METHODS.: Serial transcranial color-coded sonography (TCCS), angiography, and MRI studies were performed to measure cerebrovascular hemodynamics and assess complications following aneurysmal SAH. RESULTS.: Eighteen aneurysmal SAH patients were enrolled. Angiographically confirmed cerebral vasospasm occurred in 14 patients (77.8%), 5 of whom (35.7%) were asymptomatic. The mean blood flow velocity (V(mean) ) of the middle cerebral artery increased significantly as compared with healthy volunteers from day 1 to day 15, and substantially decreased thereafter. The V(mean) of middle cerebral artery was significantly higher in patients with than in patients without angiographically confirmed cerebral vasospasm from day 3 to day 12. Compared to angiography, TCCS detected cerebral vasospasm with 85.7% sensitivity, 100% specificity, 100% positive predictive value, and 66.7% negative predictive value. MRI-evidenced cerebral infarctions occurred in nine patients (50%), three of whom (33.3%) were asymptomatic. CONCLUSIONS.: This study demonstrated that approximately one-third of acute phase aneurysmal SAH patients have asymptomatic delayed cerebral infarction, which was undetected by TCCS in one-third of them. This may explain why the accuracy of TCCS to predict clinical symptomatic cerebral vasospasm is suboptimal. © 2011 Wiley Periodicals, Inc. J Clin Ultrasound, 2011. |
| | |
Authors:
|
Hung-Chen Wang; Wei-Che Lin; Tzu-Ming Yang; Wu-Fu Chen; Yu-Jun Lin; Nai-Wen Tsai; Wen-Neng Chang; Cheng-Hsien Lu |
Related Documents
:
|
21933769 - Diagnostic approach in symptomatic or asymptomatic aneurismal disease of the coronary a... 22050989 - Pseudoprolapse of the anterior leaflet in chronic ischemic mitral regurgitation: identi... 21660269 - Cerebral artery restenosis following transluminal balloon angioplasty for vasospasm aft... 12235879 - A case report of off-pump coronary artery bypass grafting associated with recent neurol... 9875809 - Extracardiac conduit fontan procedure without cardiopulmonary bypass. 6333969 - Early extubation after coronary artery bypass: brief report. 21296539 - Pan-aortic hybrid treatment of mega-aorta syndrome. 11932039 - Surgical management of aneurysms of the bifurcation of the internal carotid artery. 9464429 - Radiological evaluation and management of malfunctioning central venous catheters. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-11-21 |
Journal Detail:
|
Title: Journal of clinical ultrasound : JCU Volume: - ISSN: 1097-0096 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
|
Created Date: 2011-11-21 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0401663 Medline TA: J Clin Ultrasound Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2011 Wiley Periodicals, Inc. |
Affiliation:
|
Department of Neurosurgery, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Family functioning and its clinical correlates in overweight and obese patients.
Next Document: Binding with nucleic acids or glycosaminoglycans converts soluble protein oligomers to amyloid.