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Decompression sickness: USN operational experience 1969-1989.

R Bason1, D Yacavone, A H Bellenkes

  • 1Naval Safety Center, Naval Air Station, Norfolk, VA 23511-5796.

Aviation, Space, and Environmental Medicine
|October 1, 1991
PubMed
Summary

Decompression sickness in U.S. Navy (USN) operational flights is rare, often caused by loss of cabin pressurization. Most aircrew experienced limb pain and fully recovered, with no serious incidents reported.

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Area of Science:

  • Aerospace Medicine
  • Physiology
  • Naval Aviation Safety

Background:

  • Decompression sickness (DCS) is a potential risk in military aviation.
  • Understanding DCS incidence and outcomes is crucial for aircrew safety.

Purpose of the Study:

  • To analyze U.S. Navy (USN) aircrew experiences with decompression sickness.
  • To identify causes, manifestations, and recovery patterns of DCS in operational flight.

Main Methods:

  • Retrospective data analysis of USN flight records.
  • Review of 21 years of reported decompression sickness incidents (1969-1989).

Main Results:

  • 15 USN aircrew across 12 aircraft experienced DCS over 21 years.
  • Loss of cabin pressurization was the primary cause.

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  • Limb/joint pain was most common; neurological symptoms and 'chokes' also occurred.

    • Conclusions:

    • Decompression sickness in USN operational flight is infrequent.
    • Most cases resolved with minimal or no intervention.
    • No DCS incidents resulted in aircraft damage or incapacitation.