[abstract] NERVOUS SYSTEM INVOLVEMENT FROM OCCUPATIONAL DIVING. AN EPIDEMIOLOGICAL STUDY.

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[abstract] NERVOUS SYSTEM INVOLVEMENT FROM OCCUPATIONAL DIVING. AN EPIDEMIOLOGICAL STUDY.

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Title: [abstract] NERVOUS SYSTEM INVOLVEMENT FROM OCCUPATIONAL DIVING. AN EPIDEMIOLOGICAL STUDY.
Author: Todnem, K; Nyland, H; Skeidsvoll, H; Svihus, R; Rinck, P; Kambestad, BK; Aarli, JA
Abstract: One hundred and fiftysix air and saturation divers and 100 controls were examined. Thirty three percent of the divers had had symptoms from the central nervous system during decompression, and 14 percent had been unconscious while diving. Altogether 51 percent had had decompression sickness (DCS). Eight percent of the divers (no controls) had had specific neurological symptoms (vision disturbances, vertigo, reduced skin sensitivity) in non diving situations (p< .005), and 4 percent of the divers (no controls) had had episodes of cerebral dysfunction (seizures, transient cerebral ischemia, transient amnesia) (p = .047). The divers had significantly more general symptoms from the central (p = .001), the peripheral (p = .006) and the autonomic (p = .009) nervous system than the controls. Concentration difficulties and long and short term memory problems prevailed in the divers. The most prominent abnormal findings in the divers were in the sensory system (p = .005) and muscle stretch reflexes (p = .009) compatible with lesions in the spinal cord or roots, and polyneuropathy. Both symptoms and neurological findings were significantly correlated to exposure for diving, prevalence of DCS, and age. Eighteen percent of the divers and 5 percent of the controls had abnormal electroencephalography (EEG) (p = .003), which mostly consisted of slow waves in the temporal regions. Abnormal EEGs were significantly correlated to the amount of saturation diving. Auditory and visual evoked potentials were not different in the two groups. Magnetic resonance imaging of the brain and brain stem were performed in 105 divers and 49 controls. There was no significant difference between the two groups. (UHMS Spon: J.O. Hjelle)
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Joint Annual Scientific Meeting with the International Congress for Hyperbaric Medicine and the European Undersea Biomedical Society held 11-18 August 1990. Okura Hotel, Amsterdam, The Netherlands (http://www.uhms.org)
URI: http://archive.rubicon-foundation.org/7131
Date: 1990

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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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