Document Detail


Dural sinus pressure as related to neurosurgical positions.
MedLine Citation:
PMID:  6339982     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Taking advantage of the exposure of dural sinuses during craniotomies, we measured confluens sinuum pressure by direct catheterization. The influence of various surgical positions and of other factors on confluens sinuum pressure was studied. When the upper half of the body was raised, the confluens sinuum pressure decreased to reach zero at +25 degrees; when the angle was +90 degrees, a marked negative pressure of -12.7 +/- 3.0 cm H2O (mean +/- SD) was observed in adults. In children under 6 years of age, however, such negative pressure was not observed even at an angle of +90 degrees. The confluens sinuum pressure was 2.7 +/- 0.6 cm H2O with the patient in the reverse jackknife position (supine position with the upper and lower halves of the body elevated ca. 20 degrees), 3.0 +/- 0.8 in the sea lion position (prone position with the upper and lower halves of the body elevated ca. 20 degrees and with the neck hyperextended), 5.8 +/- 0.9 in the prone position, and 5.9 +/- 1.7 in the supine position. In the supine and the sitting positions, the confluens sinuum pressure was elevated well enough by jugular compression to prevent air embolism. Positive pressure respiration did not raise the confluens sinuum pressure. The pressure of the jugular bulb measured by percutaneous direct puncture did not always reflect the confluens sinuum pressure, probably because subcutaneous hematoma produced an effect similar to that of jugular compression.
Authors:
T Iwabuchi; E Sobata; M Suzuki; S Suzuki; M Yamashita
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  12     ISSN:  0148-396X     ISO Abbreviation:  Neurosurgery     Publication Date:  1983 Feb 
Date Detail:
Created Date:  1983-05-05     Completed Date:  1983-05-05     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  203-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Child
Child, Preschool
Dura Mater / blood supply*
Female
Humans
Infant
Jugular Veins / physiology
Male
Middle Aged
Neck / physiology
Neurosurgery / methods*
Positive-Pressure Respiration
Posture*
Venous Pressure

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


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