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Serious arrhythmias coinciding with alteration of consciousness in aircrew during +Gz stress.
Aviat Space Environ Med. 1994 Jan; 65(1):60-6.AS

Abstract

The Japanese Air Self Defense Force has been conducting high-G training to enhance the +Gz tolerance of F-15 and F-4 fighter pilots since 1981. All the trainees have received ECG monitoring during the +Gz stress, both for safety and for medical evaluation. Various arrhythmias have been found previously, but most of the pilots who developed them were qualified for fighter aircraft because these arrhythmias were considered as non-hazardous for flight safety. Rarely, cases of aeromedically "serious" arrhythmias were observed with alteration of consciousness during the centrifuge ride. Three cases of sinoatrial block and one case of ventricular tachycardia were reviewed with their aeromedical dispositions. Imbalance of autonomic nerves induced by high +Gz is discussed as a possible etiology. The importance of ECG monitoring during centrifuge training is reemphasized as a means of medical evaluation of fighter pilots.

Authors+Show Affiliations

Tachibana S
Physiological Training Section, JASDF Aeromedical Laboratory, Tokyo, Japan.
Akamatsu T
No affiliation info available
Nakamura A
No affiliation info available
Yagura S
No affiliation info available

MeSH

AdultAerospace MedicineArrhythmias, CardiacElectrocardiographyGravitationHumansMaleMilitary PersonnelOccupational DiseasesUnconsciousness

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

8117229

Citation

Tachibana, S, et al. "Serious Arrhythmias Coinciding With Alteration of Consciousness in Aircrew During +Gz Stress." Aviation, Space, and Environmental Medicine, vol. 65, no. 1, 1994, pp. 60-6.
Tachibana S, Akamatsu T, Nakamura A, et al. Serious arrhythmias coinciding with alteration of consciousness in aircrew during +Gz stress. Aviat Space Environ Med. 1994;65(1):60-6.
Tachibana, S., Akamatsu, T., Nakamura, A., & Yagura, S. (1994). Serious arrhythmias coinciding with alteration of consciousness in aircrew during +Gz stress. Aviation, Space, and Environmental Medicine, 65(1), 60-6.
Tachibana S, et al. Serious Arrhythmias Coinciding With Alteration of Consciousness in Aircrew During +Gz Stress. Aviat Space Environ Med. 1994;65(1):60-6. PubMed PMID: 8117229.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Serious arrhythmias coinciding with alteration of consciousness in aircrew during +Gz stress. AU - Tachibana,S, AU - Akamatsu,T, AU - Nakamura,A, AU - Yagura,S, PY - 1994/1/1/pubmed PY - 1994/1/1/medline PY - 1994/1/1/entrez SP - 60 EP - 6 JF - Aviation, space, and environmental medicine JO - Aviat Space Environ Med VL - 65 IS - 1 N2 - The Japanese Air Self Defense Force has been conducting high-G training to enhance the +Gz tolerance of F-15 and F-4 fighter pilots since 1981. All the trainees have received ECG monitoring during the +Gz stress, both for safety and for medical evaluation. Various arrhythmias have been found previously, but most of the pilots who developed them were qualified for fighter aircraft because these arrhythmias were considered as non-hazardous for flight safety. Rarely, cases of aeromedically "serious" arrhythmias were observed with alteration of consciousness during the centrifuge ride. Three cases of sinoatrial block and one case of ventricular tachycardia were reviewed with their aeromedical dispositions. Imbalance of autonomic nerves induced by high +Gz is discussed as a possible etiology. The importance of ECG monitoring during centrifuge training is reemphasized as a means of medical evaluation of fighter pilots. SN - 0095-6562 UR - https://www.unboundmedicine.com/medline/citation/8117229/Serious_arrhythmias_coinciding_with_alteration_of_consciousness_in_aircrew_during_+Gz_stress_ L2 - https://medlineplus.gov/veteransandmilitaryhealth.html DB - PRIME DP - Unbound Medicine ER -