Document Detail

Preoperative postural control of patients with vestibular schwannoma assessed by visual feedback posturography.
MedLine Citation:
PMID:  16554669     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The need for an objective method to describe the functional postural control of patients with vestibular schwannoma in agreement with their subjective sensation of balance.
OBJECTIVES: The objective was to compare the postural control of 49 patients with unilateral vestibular schwannoma (VS) with that of healthy subjects by using visual feedback posturography (VFP). We aimed to find out if preoperative postural control of the patients correlates with their subjective sensation of balance.
METHODS: In the VFP, while standing on the platform, patients were instructed to move their center of gravity (COG) marker to the targets as fast and accurately as possible. Hit delay (HD) to the targets, hold percentage (HP) within the targets, COG marker velocity (CMV) to the targets, and balance index (BI) were calculated. We rated intensity of balance disturbance using a 5-point qualitative scale.
RESULTS: Twenty-two (45%) patients had at least one abnormal VFP parameter, and 49% of patients were simultaneously symptomatic. Mean hit delay (HD), hold percentage (HP), and balance index (BI) were significantly worsened in patients with VS (p < 0.05). Increased HD and BI correlated significantly with subjective sensation of imbalance (p = 0.02).
CONCLUSIONS: The overall deficit in preoperative postural control of the VS patients was not severe, and this finding agreed well with their subjective sensations.
M Hirvonen; H Aalto; T P Hirvonen
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-03-21
Journal Detail:
Title:  ORL; journal for oto-rhino-laryngology and its related specialties     Volume:  68     ISSN:  0301-1569     ISO Abbreviation:  ORL J. Otorhinolaryngol. Relat. Spec.     Publication Date:  2006  
Date Detail:
Created Date:  2006-06-16     Completed Date:  2008-02-05     Revised Date:  2014-07-29    
Medline Journal Info:
Nlm Unique ID:  0334721     Medline TA:  ORL J Otorhinolaryngol Relat Spec     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  232-6     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2006 S. Karger AG, Basel.
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MeSH Terms
Biofeedback, Psychology
Case-Control Studies
Middle Aged
Neuroma, Acoustic / physiopathology*,  surgery
Photic Stimulation
Postural Balance
Preoperative Care
Visual Perception*

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

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