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1 The Tuberculosis League Hospital, Pittsburgh, Pennsylvania.
Simultaneous studies of the venous pressure, circulation time, vital capacity of the lung, extent of pulmonary involvement, and electrocardiograms have been made in a series of 32 cases with pulmonary tuberculosis.
These studies were carried out as controls and again at the end of one month and five months after institution of collapse therapy. In 30 cases collapse was induced by artificial pneumothorax and in two cases by phrenicotomy. Factors of emotion, environmental temperature, and body temperature were noted and controlled. The control studies were carried out after the patient had been in the hospital for a week.
The purpose of the study was to try to demonstrate any evidence of right heart failure early in the course of collapse therapy. These patients were observed clinically as well as through the laboratory.
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