(From Our Regular Correspondent)
Nov. 5, 1922.
The Influence of High Frequency Current on the Organs of Circulation
Dr. Paul Grosz, roentgenologist in a large provincial town in Hungary, has investigated the action of high frequency currents on the volume, frequency and tension of the pulse, on the tracings of the heart and on blood pressure. The research was carried out thus: In a number of cardiac patients and in a few healthy persons he determined immediately before and after each treatment, lasting from ten to twenty minutes, the area of cardiac dulness, the frequency, volume, tension and rhythm of the pulse, and the blood pressure. On an average, the pulse rate diminished after the high frequency treatment by five beats a minute, and the blood pressure rose 8 mm. of mercury. The largest fall in the blood pressure (systolic) was 12 a minute, and the greatest rise, 25. He