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Probable bends at 14,000 feet: a case report.

V M Voge1

  • 1Naval Hospital, Corpus Christi, TX.

Aviation, Space, and Environmental Medicine
|November 1, 1989
PubMed
Summary

Decompression sickness, or the bends, can occur at lower altitudes than previously thought. This case report details symptoms appearing at 14,000 ft, suggesting new considerations for altitude exposure risks.

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Area of Science:

  • Aerospace Medicine
  • Physiology
  • Diving Medicine

Background:

  • Decompression sickness (DCS) is typically associated with altitudes above 16,000 ft.
  • Previous DCS reports at lower altitudes are underdocumented.
  • SCUBA diving involves pre-exposure to hyperbaric conditions, a known DCS risk factor.

Observation:

  • A young student Naval aviator experienced symptoms of decompression sickness.
  • Symptoms manifested at an altitude of 14,000 ft (4,268m).
  • The patient had no prior hyperbaric exposure.

Findings:

  • The aviator's predisposing factors included an old athletic injury with a retained surgical screw (foreign body).
  • A regular exercise program was also noted as a potential contributing factor.
  • This case suggests DCS may occur at lower altitudes than previously established.

Implications:

  • This case challenges the established altitude threshold for decompression sickness.
  • It highlights the need to consider individual physiological factors and foreign bodies in DCS risk assessment.
  • Further research is warranted to understand DCS occurrence at lower altitudes in aviation and other contexts.

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