Document Detail


Magnetic resonance imaging findings associated with cardiac arrest.
MedLine Citation:
PMID:  8322374     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND PURPOSE: The frequency and prognostic significance of neuroradiological findings after cardiac arrest are unknown. Using healthy volunteers as control subjects, we studied the magnetic resonance imaging (MRI) findings associated with cardiac arrest, adjusted for confounding factors. METHODS: The presence of cerebral infarcts, leukoaraiosis, atrophy, and edema on ultra-low-field MRI was assessed in 88 community volunteers and 52 cardiac arrest survivors enrolled in a placebo-controlled, randomized, double-blind trial of nimodipine in out-of-hospital ventricular fibrillation. RESULTS: Cardiac arrest was an independent risk factor for the presence of infarcts in a logistic regression model adjusted for age, sex, and history of myocardial infarction, stroke, coronary heart disease, cardiac failure, and hypertension (odds ratio, 3.6; 95% confidence interval, 1.3 to 9.9; P = .01). Leukoaraiosis was associated with increasing age but not with cardiac arrest. Adjusted for age, the delay of advanced life support had an inverse correlation with the degree of atrophy in placebo-treated patients (r = -.62, P < .0001) but not in patients treated with nimodipine (r = -.10, P = .43). Lack of age-related atrophy, possibly implicating the presence of brain edema, predicted poor outcome after cardiac arrest (odds ratio, 4.6; 95% confidence interval, 1.4 to 15.8; P = .01). CONCLUSIONS: Cardiac arrest was associated with deep cerebral infarcts but not with leukoaraiosis. MRI findings did not predict the functional outcome at 1 year. Nimodipine treatment had no significant effect on the MRI findings, but delayed resuscitation was associated with probable brain edema only in placebo-treated patients.
Authors:
R O Roine; R Raininko; T Erkinjuntti; A Ylikoski; M Kaste
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  24     ISSN:  0039-2499     ISO Abbreviation:  Stroke     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-08-03     Completed Date:  1993-08-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1005-14     Citation Subset:  IM    
Affiliation:
Department of Neurology, University of Helsinki, Finland.
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MeSH Terms
Descriptor/Qualifier:
Adult
Age Factors
Aged
Atrophy / diagnosis,  etiology
Brain Edema / diagnosis,  drug therapy,  etiology*
Cerebral Infarction / diagnosis,  etiology*
Double-Blind Method
Female
Heart Arrest / complications*,  diagnosis,  drug therapy
Humans
Magnetic Resonance Imaging*
Male
Middle Aged
Nimodipine / therapeutic use
Prognosis
Risk Factors
Treatment Outcome
Chemical
Reg. No./Substance:
66085-59-4/Nimodipine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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