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Homocysteine and pulsatility index in lacunar infarction.
MedLine Citation:
PMID:  21371817     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate an association between plasma concentration of total homocysteine (tHcy) and pulsatility indexes (PIs) of cerebral arteries in patients with lacunar infarction (LI), comparing control subjects. METHODS: Consecutive patients referred to a neurovascular ultrasound laboratory were evaluated from March 2007 to February 2008. LI was determined by high signal intensity lesion (<15mm) in brain MRI and PI was defined as (peak-systolic velocity-end-diastolic velocity)/mean flow velocity as recommended. Plasma tHcy was categorized into tertiles and analyzed for an association with PIs. RESULTS: 83 patients with LI and 135 control subjects were analyzed. The patients with LI showed significantly lower peak-systolic, end-diastolic, and mean flow velocities than the control group, especially in posterior circulatory beds. The group with LI showed independent associations between the higher tertiles of tHcy and the graded and linear increases of PIs, even after adjusted for potential confounders including vascular risk factors, but not in the control group. Interaction terms were significant in both the right middle cerebral artery and basilar artery, and borderline significant in the left vertebral artery (p=0.040, 0.022, 0.055, respectively). CONCLUSION: Increased plasma tHcy was significantly and independently associated with increased cerebral arterial resistance in the patients with LI.
Authors:
Seul-Ki Jeong; Do-Hyung Kim; Young I Cho
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-1
Journal Detail:
Title:  Clinical neurology and neurosurgery     Volume:  -     ISSN:  1872-6968     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502039     Medline TA:  Clin Neurol Neurosurg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Affiliation:
Department of Neurology, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, South Korea.
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