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[Heart morphologic state in retired fighter pilots].

X E Yang1, Z G Chen, L Long

  • 1No. 452 Hospital of PLA, Chengdu, China.

Hang Tian Yi Xue Yu Yi Xue Gong Cheng = Space Medicine & Medical Engineering
|January 5, 2002
PubMed
Summary

Retired fighter pilots showed no heart damage, suggesting cardiac variations are adaptive responses to long-term exposure to combined G-loads, heat, noise, hypoxia, and vibration stresses.

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Area of Science:

  • Aerospace Medicine
  • Cardiovascular Physiology
  • Environmental Stressors

Background:

  • Fighter pilot occupations involve prolonged exposure to combined environmental stressors.
  • Potential cardiac structural damage from these exposures requires investigation.

Purpose of the Study:

  • To assess heart morphology in retired fighter pilots.
  • To determine if combined G-loads, heat, noise, hypoxia, and vibration induce cardiac damage.

Main Methods:

  • Doppler echocardiography was used to study heart morphology.
  • 40 retired fighter pilots were compared with 40 veteran cadres as controls.

Main Results:

  • Pilot group showed higher left ventricular dimensions and aortic valve area (P < 0.05).

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  • No significant pathomorphologic cardiac damage was detected in pilots.
  • Some parameters were slightly lower in pilots, but not statistically significant.

    • Conclusions:

    • Observed cardiac variations in fighter pilots are likely adaptive changes.
    • No evidence of cardiac structural damage from long-term exposure to combined flight stressors was found.