[abstract] CINEPHOTOMICROGRAPHY OF THE EPIDURAL VERTEBRAL SYSTEM DURING PARALYTIC DECOMPRESSION SICKNESS.

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[abstract] CINEPHOTOMICROGRAPHY OF THE EPIDURAL VERTEBRAL SYSTEM DURING PARALYTIC DECOMPRESSION SICKNESS.

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Title: [abstract] CINEPHOTOMICROGRAPHY OF THE EPIDURAL VERTEBRAL SYSTEM DURING PARALYTIC DECOMPRESSION SICKNESS.
Author: Hallenbeck, JM
Abstract: The changes in cerebrospinal fluid pressure, various cardiovascular pressures and cinevenography that occur in decompression sickness-induced spinal cord damage in anesthetized dogs, as well as the subsequent cord histopathology, suggest that obstruction at the level of the epidural vertebral venous system (EWS) may be pathogenetically important. These studies have been reported in previous communications. We have performed a series of in vivo cinephotomicrographic studies of the EWS and spinal cord pial vessels in laminectomized male mongrel dogs anesthetized with morphine and chloralose. A Leitz Ortholux microscope with an Ultrapak reflected light system and an Arriflex 16 movie camera were used. The dogs were suspended in a frame by several dorsal spinous processes. Circulation was observed and recorded in control animals following safe dives, and following dives which produced signs of spinal cord damage. Aortic pressure, central venous pressure, cisternal pressure, p02, pCO2, pH and temperature were monitored during the experiments. Care was exercised during incision of the dura so that the arachnoid membrane remained intact. The exposed arachnoid membrane was bathed with Elliott's solution B. Direct visual evidence of EVVS obstruction following decompression sickness-induced spinal cord damage was obtained. Spinal cord damage was confirmed histopathologically.
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Annual Scientific Meeting held May 10-11, 1974. Hilton Hotel, Washington, D.C. (http:www.uhms.org)
URI: http://archive.rubicon-foundation.org/41
Date: 1974

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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