Document Detail


Laryngeal airway resistance. The relationships of airflow, pressure, and aperture.
MedLine Citation:
PMID:  1892616     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In the surgical treatment of the paralyzed larynx, a compromise often needs to be made between an orifice size needed to preserve voice and that needed for adequate inspiratory airflow rates. To assess the negative pressures needed to generate normal airflows across a narrowed vocal cord aperture, we measured pressure and flow changes across cadaveric larynges while altering aperture size. Best-fit quadratic equations for each aperture area selected were derived and showed that if the aperture were 0.5 cm2 or less, the resistance to normal breathing would be significantly increased. Aperture sizes of 0.67 cm2 or greater are not associated with such an increase in resistance.
Authors:
J W Templer; P G Von Doersten; P R Quigley; G C Scott; W E Davis
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Publication Detail:
Type:  In Vitro; Journal Article    
Journal Detail:
Title:  Archives of otolaryngology--head & neck surgery     Volume:  117     ISSN:  0886-4470     ISO Abbreviation:  Arch. Otolaryngol. Head Neck Surg.     Publication Date:  1991 Aug 
Date Detail:
Created Date:  1991-10-24     Completed Date:  1991-10-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8603209     Medline TA:  Arch Otolaryngol Head Neck Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  867-70     Citation Subset:  AIM; IM    
Affiliation:
Department of Surgery, University of Missouri, Columbia.
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MeSH Terms
Descriptor/Qualifier:
Airway Resistance / physiology*
Calibration
Humans
Laryngostenosis / physiopathology*
Pressure
Reference Values

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


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