[Individual prediction by the analysis of preflight ECG data of cardiac function disorders in cosmonauts during standard deorbit after long-term space flights and in the period of postflight observation].
ECG records of 25 cosmonauts--members of 30 long-term Mir and ISS missions (73- to 197-day long) in the period of 1995-2007 were analyzed. The ECG records were made during medical selection, clinical-physiological investigations (KFO) before launch, insertion and standard descent, and post-flight KFO. No negative trends were discovered in 70% (n=21) of ECG records during insertion and descent of cosmonauts who had not have significant ECG deviations before flight. In 20% of ECG records (n=6) pre-launch individual properties of cardiac rhythm, conduction and end of the ventricular complex became more pronounced in the period of descent persisting after landing. In 10% of ECG records (n=3) the predicted ECG deviations were not found This was the first time when dynamic analysis of ECG records made on the stages of selection and pre-launch training was successful in predicting of 90% (n=27 of 30) of cardiac function deviations during descent. At the start of rehabilitation from long-term missions essentially each of the cosmonauts displayed ECG deviations which were more considerable as compared with the KFO and descent records.
Kotovskaia
A R
AR
Koloteva
M I
MI
Luk'ianiuk
V Iu
VIu
Zhernavkov
A F
AF
Kondratiuk
L L
LL
D000222:Adaptation, Physiological / Q000502:physiology*; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000503:physiopathology*; D018480:Astronauts; D004562:Electrocardiography / Q000379:methods*; D005080:Exercise Test / Q000379:methods; D005500:Follow-Up Studies; D006329:Heart Conduction System / Q000503:physiopathology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D018471:Hypergravity; D008297:Male; D011379:Prognosis; D012189:Retrospective Studies; D013026:Space Flight; D013997:Time Factors; D014893:Weightlessness