Aspiration after stroke: lesion analysis by brain MRI

Aspiration is a common problem following stroke, resulting in feeding difficulties and aspiration pneumonia. Despite past studies using clinical assessments and computed tomographic (CT) scans of the head, the correlation of stroke location with aspiration remains unclear. Since brain magnetic reson...

Full description

Saved in:
Bibliographic Details
Published in:Dysphagia 1992, Vol.7 (3), p.170
Main Authors: Alberts, M J, Horner, J, Gray, L, Brazer, S R
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Brain - pathology
Cerebrovascular Disorders - complications
Deglutition Disorders - etiology
Deglutition Disorders - pathology
Female
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Aspiration is a common problem following stroke, resulting in feeding difficulties and aspiration pneumonia. Despite past studies using clinical assessments and computed tomographic (CT) scans of the head, the correlation of stroke location with aspiration remains unclear. Since brain magnetic resonance imaging is more sensitive than CT for many stroke types, we have correlated MRI lesions with aspiration in patients who have sustained a stroke. We selected patients with acute stroke who underwent brain MRI and a swallowing evaluation. Aspiration was present in 21 of 38 patients (55%). Patients with just small vessel infarcts had a significantly lower occurrence of aspiration (3 of 14, 21%) compared to those with both large- and small-vessel infarcts (15 of 20, 75%, p = 0.002). Multivariate analysis of several specific brain areas failed to identify a significant association between stroke location and the occurrence of aspiration. These findings suggest that patients who have experienced stroke should be individually evaluated for swallowing dysfunction regardless of stroke location or size, since even small-vessel strokes can be associated with aspiration in greater than 20% of cases.
ISSN:0179-051X