Rheocardiography

Rheocardiography seemed to be of valuable assistance in diagnosing these cases and in recording the separate stages of the condition.

The biophysical principles of impedance rheocardiography were first substantiated by Russian (A. A. Kedrov, Yu. T. Pushkar) and foreign (W. G. Kubicek, B. Sramek) researchers in the 1940-1960s.

Judging from results of rheocardiography, the increase in the severity of cooling is accompanied by an increase in hemodynamic and cardiac rhythm impairment and increase of blood pressure.