Document Detail

Submental stimulation and supraglottic resistance during mouth breathing.
MedLine Citation:
PMID:  8525124     Owner:  NLM     Status:  MEDLINE    
We studied submental stimulation on supraglottic resistance (Rsg) in 5 normals and 6 patients with obstructive sleep apnea. We then examined the most effective sites of stimulation in the submental regions, and the relationships between Rsg and stimulation frequency and voltage in the supine position. Inspiratory and expiratory Rsg's were obtained as the slope of the linear portion of the pressure-flow relation determined at zero flow. Before stimulation, inspiratory and expiratory Rsg's were 0.76 +/- 0.06 (means +/- SE) and 0.61 +/- 0.02 cmH2O.L-1.sec, respectively, in normals, and 1.04 +/- 0.20 and 0.92 +/- 0.29 cmH2O.L-1.sec, respectively, in patients. Stimulation in the proximal half submental region with surface electrodes 1 cm apart decreased inspiratory and expiratory Rsg's in patients, and inspiratory Rsg in normals. Inspiratory Rsg measured in this submental region showed a stimulation frequency-and voltage-dependency in both groups, but expiratory Rsg did not. These findings suggest that submental stimulation in the proximal half region widens the supraglottic airway during mouth breathing and probably involves the upper airway muscles.
W Hida; S Okabe; H Miki; Y Kikuchi; H Kurosawa; T Takishima; K Shirato
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Respiration physiology     Volume:  101     ISSN:  0034-5687     ISO Abbreviation:  Respir Physiol     Publication Date:  1995 Jul 
Date Detail:
Created Date:  1996-01-24     Completed Date:  1996-01-24     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0047142     Medline TA:  Respir Physiol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  79-85     Citation Subset:  IM    
First Department of Internal Medicine, Tohoku University School of Medicine, Sendai, Japan.
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MeSH Terms
Airway Resistance / physiology*
Glottis / physiology*
Mouth Breathing / physiopathology*
Sleep Apnea Syndromes / physiopathology*
Subliminal Stimulation*

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