Abstract
The author has studied the pulmonary circulatory dynamics in 6 patients with bronchial asthma. In every cases the author has studied also the effects of intravenous injection of Theophyllinethylendiamine on the pulmonary circulatory dynamics.1) In all 6 cases both pulmonary arterial pressure and pulmonary arterial wedge pressure (W. P.) was slightly higher than normal. The W. P. contours have reflected the left atrial pressure variation with high fidelity.2) Intravenous infusions of 250 mg Theophyllinethylendiamine induced prompt reduction of W. P. to the normal or subnormal value.3) According to these data the author has concluded that the concept of increased pulmonary venous wall tone in bronchial asthma designated by M. Takino may be true.
