Digital Plethysmography [antikvár]

Preface This monograph is coiicerned primarily with recent experimental studies and the development of a new method for recording continuously, during a pulse cycle, the rate of blood flow into and out of the digit of man. A discussion of the many problems concerned with the measurement of the rate of blood flow by the venous occlusive method is included because of the apparent failure to recognize some of them in studies published in the medical literature. In an attempt to keep the monograph brief, only selected phases of the many problems are discussed in detail during the earlier portions of this report. As the discussions progress, more reliance is placed upon the many illustrations rather than the text for the introduction of the data and ideas. No effort was made to review the literature or the entire field of plethysmography, but only to report recent studies in plethysmography and the recording in detail of the blood flow in the digit of man. The Ciba Foundation, London, England, has kindly granted permission for the use of figures 1, 27, 29, 30, 31, 32, 33, 48 and 49. This work was supported by a grant from the Public Health Service (H-143), the Rowell A. Billups Fund for Research in Heart Disease, the Medical Research and Development Board, Office of The Surgeon General, Department of the Army, Contract Xo. DA-49-007-MD-182, and the Mrs. E. .1. Caire Fund for Research in Heart Disease. G. E. B. New Orleans November 1953