[abstract] RISK ASSESSMENT OF ASTHMA FOR DECOMPRESSION ILLNESS

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[abstract] RISK ASSESSMENT OF ASTHMA FOR DECOMPRESSION ILLNESS

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Title: [abstract] RISK ASSESSMENT OF ASTHMA FOR DECOMPRESSION ILLNESS
Author: Corson, KS; Dovenbarger, JA; Moon, RE; Hodder, S; Bennett, PB
Abstract: Asthma has traditionally been considered a significant risk factor for decompression illness, particularly arterial gas embolism (AGE). In order to assess the risk of asthma for AGE and decompression sickness (DCS) a retrospective review was made of DAN accident data covering the four years 1987 - 1990. A total of 1,213 cases of decompression illness had been reported to DAN at the time of this writing, of which 196 had suffered AGE based upon the clinical diagnosis of the treating physician. 755 had suffered type II DCS. In this accident group there were 54 divers who had a history of asthma, of which 25 were currently asthmatic (defined as having had an attack within one year or taking bronchodilator therapy). 16 divers with AGE had a history of asthma, of which 7 were currently asthmatic; 30 divers with type II DCS had asthma, of which 16 were currently asthmatic. In order to provide a control population 1,000 questionnaires were sent out to a randomly selected group of DAN members; 696 questionnaires were returned. Of these control individuals 37 divers admitted to a history of asthma, of which 13 were currently asthmatic. Odds ratios were calculated in order to establish the ratio of the probability of each condition (AGE and type II DCS) in a diver with asthma compared to the same probability without asthma. Results are shown inthe table below: Condition, Odds Ratio, 95% Confidence Interval, P; AGE - all asthmatics, 1.58, 0.80 - 2.99, ns; AGE - current asthmatics, 1.98, 0.65 - 5.33, ns; Type II DCS - all asthmatics, 0.74, 0.43 - 1.24, ns; Type II DCS - current asthmatics, 1.16, 0.51 - 2.59, ns; . We were unable to demonstrate a statistically significant increase in risk for type II DCS in asthmatics. The data suggest an approximately two-fold increase in risk for AGE in asthmatics but the data do not reach statistical significance. On the basis of these data it appears that the incremental risk of AGE in the asthmatics in this sample population is small. A definitive study will require a much larger sample.
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/6401
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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