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Age and Aortic Diameters in Pilots.

Ahmet Akın¹, Cengiz Ozturk², Mustafa Aparci³

¹Department of Aerospace Medicine, Gulhane Military Medical Academy, Eskisehir, Turkey.

Military Medicine

|December 4, 2015

Summary

Jet pilots experience aortic enlargement with age, unlike non-jet pilots. This suggests flight stress may contribute to long-term aortic issues, even if diameters remain within safe ranges.

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Area of Science:

Aviation Medicine
Cardiovascular Physiology

Background:

Pilots face physical and hemodynamic stresses during flight.
Flight-related stress may lead to aortic dilatation.
The study investigates the association between aircraft type, pilot age, and aortic diameter variations.

Purpose of the Study:

To determine if aircraft type influences aortic diameter.
To assess the relationship between pilot age and aortic diameter.
To explore potential long-term cardiovascular consequences of flight stress.

Main Methods:

Reviewed medical records of 87 jet aircraft pilots (JP) and 65 non-jet aircraft pilots (NJP).
Measured echocardiographic diameters of the aortic sinus (AoS) and ascending aorta (AoAsc).
Utilized standard echocardiographic probe positions for measurements.

Main Results:

No statistically significant difference in aortic diameters between JP and NJP.
Aortic sinus and ascending aorta diameters significantly correlated with age in JP (p < 0.001).
No age-related association with aortic diameters was found in NJP.

Conclusions:

Jet pilots exhibit age-related aortic enlargement compared to non-jet pilots.
While aortic diameters in jet pilots were not critical, findings suggest potential long-term risks.
Flight-related stresses may contribute to the development of acute aortic syndromes over time.