Document Detail

A new method for noninvasive measurement of short-term cerebrospinal fluid pressure changes in humans.
MedLine Citation:
PMID:  4045519     Owner:  NLM     Status:  MEDLINE    
Changes in cerebrospinal fluid (CSF) pressure were shown to be reflected by changes in tympanic membrane (TM) tension. Impedance audiometry measures mechanical tension on the TM and was used to detect changes during jugular vein compression in normal students. CSF and peri-lymph communicate through the cochlear aqueduct, permitting increases in CSF pressure to result in increased pressure on the stapes footplate. This is transmitted to the TM by the ossicles and detected by impedance audiometry. TM tension was also proportional to CSF pressure in cadavers, where CSF pressure was manipulated by saline injection through a lumbar puncture.
R Kast
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of neurology     Volume:  232     ISSN:  0340-5354     ISO Abbreviation:  J. Neurol.     Publication Date:  1985  
Date Detail:
Created Date:  1985-11-21     Completed Date:  1985-11-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0423161     Medline TA:  J Neurol     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  260-1     Citation Subset:  IM    
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MeSH Terms
Acoustic Impedance Tests / methods*
Intracranial Pressure*
Time Factors
Tympanic Membrane / physiology

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

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