[Diagnosis of cardiac rhythm disorders in pilots using 24-hour ECG monitoring].

As a result of comprehensive examinations of 57 pilots, aged 31 to 50 years, which included multi-step bicycle ergometry, specific tests simulating flight effects (e.g., positive pressure breathing, moderate hypoxia, radial acceleration) and 24-hour Holter monitoring, various cardiac arrhythmias were identified in 37 subjects (64.9%). They included supraventricular ectopic beats and ventricular ectopic beats of different grades. It was demonstrated that Holter monitoring was very reliable in comparison with conventional methods such as ECG at rest, bicycle ergometry or specific tests. In 5 cases, transient cardiac arrhythmias were associated with ischemic heart disease manifestations. The method of Holter monitoring is recommended to be used in medical expertise of the aircraft personnel.