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Related Experiment Videos

Head-up tilt test for recurrent syncope in pilots.

Dan Carter1, Russell Pokroy, Alon Grossman

  • 1Israel Air Force Aeromedical Center, Military POB 02166, Tel Hashomer, Israel. carterd@zahav.net.il

Aviation, Space, and Environmental Medicine
|December 24, 2005
PubMed
Summary

Recurrent vasovagal syncope in aviators, even with triggers, can lead to disqualification. A positive head-up tilt test (HUTT) is a key factor in these medical decisions for pilots.

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Area of Science:

  • Aviation Medicine
  • Cardiology
  • Neurology

Background:

  • Vasovagal syncope, a common cause of fainting, is typically benign.
  • However, recurrent episodes in aviators raise significant safety concerns.
  • The head-up tilt test (HUTT) is a diagnostic tool for vasovagal syncope.

Observation:

  • Two military aviators experienced recurrent vasovagal syncope.
  • One aviator had identifiable triggers, while the other did not.
  • Both aviators presented with positive HUTT results.

Findings:

  • The aviator with trigger-defined vasovagal syncope was grounded from high-performance aircraft.
  • The second aviator was disqualified from all flight duties due to undefined triggers and a positive HUTT.

Related Experiment Videos

  • Positive HUTT results indicate a predisposition to recurrent vasovagal syncope.

    • Implications:

    • Recurrent vasovagal syncope poses a risk to aviation safety.
    • Diagnostic challenges arise when triggers are not clearly defined.
    • Disqualification criteria for aviators with syncope require careful consideration of triggers and test results.