ECHOCARDIOGRAPHIC FINDINGS IN NATO PILOTS: DO ACCELERATION (+Gz) STRESSES DAMAGE THE HEART?

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Authors
  1. Gray, G.W.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Based on physiologic considerations, observations in animal experiments and the results of a preliminary French study, there has been an aeromedical concern that repeated exposure to high sustained G-forces might have a deleterious effect on the heart. The AGARD Aerospace Medical Panel initiated a multi-national study to address the question. Hypothesis: The study addressed the null hypothesis that "there is no different in cardiac chamber dimensions, wall thickness or echocardiographic functional parameters between pilots who fly high sustained G (HSG) aircraft and pilots who fly primarily rotary wing or transport aircraft". Methods: The study was a cross-sectional design comparing echocardiographic parameters in NATO active duty male pilots of HSG aircraft with a control group of transport and rotary wing pilots (CNTL). Some 13 NATO nations participated using a detailed protocol which included specific echocardiographic technical instructions, and procedures for collecting quantitative data on demographic variables including exercise, smoking and flying hours. Data was forwarded on a specially-designed software program to a central data registry. Careful quality control was carried out. TRUNCATED
Keywords
High Sustained G-forces (HSG)
Report Number
DCIEM-97-P-16 — Reprint
Date of publication
01 Jun 1997
Number of Pages
5
Reprinted from
Aviation, Space, and Environmental Medicine, vol 68, no 7, 1997, p 596-600
DSTKIM No
97-03927
CANDIS No
504213
Format(s):
Hardcopy;Document Image stored on Optical Disk

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