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Mental status changes and stroke.

Abstract：

OBJECTIVE:To determine the frequency with which an acute confusional state is caused by a stroke and to evaluate the usefulness of obtaining computed tomography scans in this setting. DESIGN:Retrospective analysis. SETTING:Tertiary referral center. PATIENTS:The authors reviewed 127 neurology consultations requested for patients presenting with acute and apparently isolated mental status changes. The mean age was 62 years. RESULTS:Nine (7%) of the 127 patients were thought to have suffered mental status changes as a result of an acute stroke: one subarachnoid hemorrhage, and eight ischemic strokes. There was no intracerebral hemorrhage. The locations of the infarcts were: right frontoparietal (four patients), bilateral occipital (two patients), bilateral frontal (two patients), and right pontine (one patient, for whom the causality of the stroke was uncertain). Of those nine stroke patients presenting with isolated mental symptoms, six (66%) had some focal abnormality on neurologic examination. Only three (2.7%) of the 109 patients with no focal findings were ultimately diagnosed as having strokes, and one of these had a subarachnoid hemorrhage. CONCLUSIONS:Stroke was a relatively rare cause of acute confusional syndrome. The neurologic examination had a very high negative predictive value (97%) and was reliable in selecting patients who should undergo an imaging study.

journal_name

J Gen Intern Med

journal_title

Journal of general internal medicine

authors

Benbadis SR,Sila CA,Cristea RL

doi

10.1007/BF02599217

subject

Has Abstract

pub_date

1994-09-01 00:00:00

pages

485-7

issue

9

eissn

0884-8734

issn

1525-1497

journal_volume

9

pub_type

杂志文章

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