| Submental stimulation and supraglottic resistance during mouth breathing. | |
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MedLine Citation:
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PMID: 8525124 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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W Hida; S Okabe; H Miki; Y Kikuchi; H Kurosawa; T Takishima; K Shirato |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Respiration physiology Volume: 101 ISSN: 0034-5687 ISO Abbreviation: Respir Physiol Publication Date: 1995 Jul |
Date Detail:
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Created Date: 1996-01-24 Completed Date: 1996-01-24 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0047142 Medline TA: Respir Physiol Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 79-85 Citation Subset: IM |
Affiliation:
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First Department of Internal Medicine, Tohoku University School of Medicine, Sendai, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Airway Resistance / physiology* Electrophysiology Female Glottis / physiology* Humans Male Mouth Breathing / physiopathology* Sleep Apnea Syndromes / physiopathology* Subliminal Stimulation* |
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