Annals of rehabilitation medicine
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Ann Rehabil Med 2012 Oct; 36(5): 696-701
The Influence of Laterality of Pharyngeal Bolus Passage on Dysphagia in Hemiplegic Stroke Patients
Min Seok Kim, M.D., Seong Jae Lee, M.D., Ph.D., Tae Uk Kim, M.D., Dong Hyuk Seo, M.D., Jung Keun Hyun, M.D., Ph.D.1, Jae Il Kim, M.D., Ph.D.2
Departments of Rehabilitation Medicine, College of Medicine, 1Department of Nanobiomedical Science and WCU Research Center of Nanobiomedical Science, Institute of Tissue Regeneration Engineering (ITREN), 2Department of Neurology, College of Medicine, Dankook University, Cheonan 330-715, Korea
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
ABSTRACT
Objective To investigate swallowing laterality in hemiplegic patients with stroke and recovery of dysphagia according to the laterality.
Method The sample was comprised of 46 dysphagic patients with hemiplegia after their first stroke. The sample's videofluoroscopic swallowing study (VFSS) was reviewed. Swallowing laterality was determined by the anterior-posterior view of VFSS. We measured width difference of barium sulfate liquid flow in the pharyngoesophageal segment. If there was double or more the width of that from the opposite width in the pharyngoesophageal segment more than twice on three trials of swallowing, then it was judged as having laterality. Subjects were assigned to no laterality (NL), laterality that is ipsilateral to hemiplegic side (LI), and laterality that is contralateral to hemiplegic side (LC) groups. We measured the following: prevalence of aspiration, the 8-point penetration-aspiration scale, and the functional dysphagia scale of the subjects at baseline and follow up.
Results Laterality was observed in 45.7% of all patients. Among them, 52.4% were in the hemiplegic direction. There was no significant difference between groups at baseline in all measurements. When we compared the changes in all measurements on follow-up study, there were no significant differences between groups.
Conclusion Through this study, we found that there was no significant relation between swallowing laterality and the severity or prognosis of swallowing difficulty. More studies for swallowing laterality on stroke patients will be needed.
KEYWORD
Swallowing, Laterality, Dysphagia, Stroke
Ann Rehabil Med 2012 Oct; 36(5): 696-701
   

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