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Decadal electrocardiographic changes between age 40 and 50 in military pilots.
MedLine Citation:
PMID:  21888276     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
INTRODUCTION: Cardiovascular diseases can lead to sudden in-flight incapacitation and long-term disability in aircraft pilots. Electrocardiogram (ECG) has been widely used to screen for these diseases in routine aeromedical examinations. Several ECG changes such as complete left bundle-branch block (CLBBB) and left ventricular hypertrophy (LVH) have been associated with increased likelihood of underlying structural cardiac diseases in addition to the emergence of newly recognized cardiovascular diseases such as Brugada syndrome. Therefore, the purpose of this study was to analyze decadal ECG changes in aircraft pilots between 40 and 50 yr in order to make an appropriate evaluation of these ECG changes.
METHODS: We analyzed the ECGs from the annual aeromedical examination of age 50 compared to those 40 yr of age in a total of 176 Japan Air Self-Defense Force pilots.
RESULTS: With regard to decadal changes, we detected 34 new ECG changes (1 of sinus tachycardia, 8 sinus bradycardia, 1 atrial fibrillation, 2 premature atrial contraction, 1 premature ventricular contraction, 2 left axis deviation, 6 first-degree atrioventricular block, 1 CLBBB, 3 complete right bundle-branch block, 2 incomplete right bundle-branch block, 1 right ventricular conduction delay, and 6 LVH). Although the majority of them were concluded to be normal variants, the results of echocardiography in two hypertensive pilots without good control demonstrated abnormalities: one had mild hypertrophic nonobstructive cardiomyopathy and another had heart enlargement.
CONCLUSION: Thus, this study recommends additional cardiovascular examinations, including echocardiography for hypertensive pilots with ECG changes.
Authors:
Nobuhiro Ohrui; Tetsuya Hisada; Yukiko Tsujimoto; Eiji Shinto; Yutaka Sakurai; Koji Fukushima; Yoshinori Miyamoto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Aviation, space, and environmental medicine     Volume:  82     ISSN:  0095-6562     ISO Abbreviation:  Aviat Space Environ Med     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7501714     Medline TA:  Aviat Space Environ Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  904-8     Citation Subset:  IM; S    
Affiliation:
Aeromedical Laboratory, Japan Air Self-Defense Force, Tachikawa, Tokyo, Japan. orui1690@inet.asdf.mod.go.jp
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