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BAROTRAUMATIC CEREBRAL AIR EMBOLISM FOLLOWING SCUBA DIVING Naoyuki Nakao 1 , Hiroshi Moriwaki 1 , Yoshitsugu Oiwa 2 1Department of Neurological Surgery, Hidaka General Hospital 2Department of Neurological Surgery, Wakayama Medical College Keyword: barotrauma , cerebral air embolism , scuba divlng , CT , MRI pp.1097-1100
Published Date 1990/11/1
DOI https://doi.org/10.11477/mf.1406900129
  • Abstract
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The authors report a case of barotraumatic cere-bral air embolism following scuba diving, in which air embolism was diagnosed by CT. This kind of disorder becomes more frequent with the greater popularity of scuba diving.

A healthy 24-year old woman made a rapid ascent with breath hold after a scuba dive to 8 meters for 20 minutes. On surfacing, she felt chest pain radiating to the cervical region. Shortly thereafter, she developed visual obscuration and weakness in the right arm and leg. On admission, neurological examination revealed right hemipa-resis with hemisensory disturbance. Visual acuity was counting fingers at 1 meter in the right eye and only perception of hand movement in the left. CT obtained 10 hours after the onset revealed no abnoramality except for a small area of air density. A chest x-ray film revealed mediastinal emphysema tracking into the neck. T2-weighted MRI 22 hours after the onset revealed multiple areas of high intensity, suggesting ischemic lesions, in the left hemispheric white matter. The visual dis-turbance, probably due to air embolism in the retinal vessels, was gradually improved and com-pletely disappeared 24 hours after the onset. Nevertheless, there was no change in the motor and sensory disturbance of the extremities. The patient was transferred to an institution with hyperbaric facilities and was given hyperbaric oxygen therapy 30 hours after the accident with almost complete recovery of neurological function.


Copyright © 1990, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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