[abstract] EARLY DETECTION OF EMBOLIC PHENOMENA IN DECOMPRESSION SICKNESS: EMPHASIS ON NEUROCIRCULATORY AND HEMATOLOGIC ALTERATIONS.

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[abstract] EARLY DETECTION OF EMBOLIC PHENOMENA IN DECOMPRESSION SICKNESS: EMPHASIS ON NEUROCIRCULATORY AND HEMATOLOGIC ALTERATIONS.

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Title: [abstract] EARLY DETECTION OF EMBOLIC PHENOMENA IN DECOMPRESSION SICKNESS: EMPHASIS ON NEUROCIRCULATORY AND HEMATOLOGIC ALTERATIONS.
Author: Cockett, ATK; Zehl, DN; Hahn, PM
Abstract: Our studies have previously documented the presence of hypovolemic shock in severe decompression sickness. Coupled with the development of gaseous emboli has been the occurrence of lipid emboli. These lipid alterations have been manifested by an increase in plasma lipids triglycerides, cholesterol and phospholipids. The changes in animals were severe enough so that death resulted unless the animals were treated with either heparin or dextran (MMW). Human volunteer divers emerging from depths of 200 feet have shown an increase in hematocrit associated with early lipid alterations similar to those seen in our animal experiments. The objectives of this presentation are to emphasize the value of ophthalmoscopic examinations and brain wave (EEG) recordings to focus on the areas of embolization. We have now seen gaseous emboli in the retinal and choroidal arterial systems of the subhuman primate following decompression from depths of 180 feet. We have also seen slow wave changes in the occipital and parieto-temporal regions. We believe these slow wave changes are a manifestation of ischemia secondary to embolic phenomena. We suggest that these embolic phenomena can be reversed in the main by reestablishing an effective circulating blood volume. Heparin is able to reverse the lipid alterations when given in a dose of 1.5 mg/kg. We will discuss these alterations in the light of some of the dangers which can affect the scuba diver who overstays his depth by even a short time interval.
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Annual Scientific Meeting held May 13-16, 1977. Holiday-Inn, Toronto, Ontario, Canada (http://www.uhms.org)
URI: http://archive.rubicon-foundation.org/4215
Date: 1977

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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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