[Hegglin's syndrome in flight personnel with atherosclerotic coronary cardiosclerosis and its clinical evaluation].

In order to identify the frequency and degree of the Haggline syndrome, 954 polycardiograms recorded in 241 patients, aged 39-55, with moderate atherosclerotic coronary cardiosclerosis were studied. Certain deviations in the mechanical work of the heart were noted. Elongation of the electric systole was found in 16% and that of the electro-mechanical in 21.4% of the subjects. This suggested metabolism disorders in the heart and reduction of its contractile capacity. The study made it possible to identify early abnormalities in the mechanical work of the heart that are very important to prevent further adverse developments.