Document Detail

Volume displacement of the tympanic membrane at stapedius reflex activity in different postures. Studies on variations in perilymphatic pressure.
MedLine Citation:
PMID:  626046     Owner:  NLM     Status:  MEDLINE    
With the microflow method the volume displacement of the tympanic membrane and its direction of movement can be recorded at stapedius reflex contraction. There is an outward or inward movement of the tympanic membrane, which is affected by changes in posture. The results indicate that the perilymphatic pressure in man varies with the posture and that these variations can be measured indirectly outside the tympanic membrane. This can only be done, however, on condition that there are no pressure variations across the tympanic membrane. This method opens up new ways of studying possible pressure changes in the inner ear in acute diseases.
M Casselbrant; S Ingelstedt; A Ivarsson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta oto-laryngologica     Volume:  85     ISSN:  0001-6489     ISO Abbreviation:  Acta Otolaryngol.     Publication Date:    1978 Jan-Feb
Date Detail:
Created Date:  1978-04-17     Completed Date:  1978-04-17     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370354     Medline TA:  Acta Otolaryngol     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  1-9     Citation Subset:  IM    
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MeSH Terms
Auditory Threshold
Ear, Middle / physiology*
Labyrinthine Fluids / physiology*
Perilymph / physiology*
Tympanic Membrane / physiology*

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

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