[abstract] PARADOXICAL PAIN DURING THE TREATMENT OF DYSBARIC OSTEONECROSIS WITH HYPERBARIC OXYGEN.

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[abstract] PARADOXICAL PAIN DURING THE TREATMENT OF DYSBARIC OSTEONECROSIS WITH HYPERBARIC OXYGEN.

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Title: [abstract] PARADOXICAL PAIN DURING THE TREATMENT OF DYSBARIC OSTEONECROSIS WITH HYPERBARIC OXYGEN.
Author: Youngblood, DA; Vega, RL
Abstract: Dysbaric osteonecrosis is an environmental hazard associated with changes in ambient pressure. We treated a 35 year old diver with no history of recognized decompression sickness during his 15 year career of intensive scuba diving activity involving 10-15 dives per week to depths between 60 and 200 FSW. Symptoms of fatigue and shoulder pain during ascent and after surfacing gradually increased over a three year period to include joint pain exacerbated by flying at normal airline cabin altitudes. Physical examination revealed diffuse neurological abnormalities, and radiographs showed a suspicious humeral medullary lesion. Early dysbaric osteonecrosis in both shoulders was confirmed by Magnetic Resonance imaging (MRI), and the patient received HBO in a Sechrist monochamber at 2 ATA for 90 minutes once per day over a 4 month period. MRI after 100 treatments showed incomplete resolution of the shoulder lesions despite considerable clinical improvement. During the initial treatments there was a paradoxical increase in shoulder pain during compression which continued to increase while at the treatment pressure. This paradoxical pain became less intense each succeeding day and disappeared by the twenty fifth treatment. Theories which might explain this paradoxical pain will be presented.
Description: Abstract of the Undersea and Hyperbaric Medical Society Annual Scientific Meeting held June 19-23, 1991 at San Diego Princess Resort, San Diego, CA.
URI: http://archive.rubicon-foundation.org/7572
Date: 1991

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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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