Abstract
The author previously reported on "Pressure Efficiency in Respiration", has reached some conclusion upon undertaking a series of tests in reference to the various values of ventilatory mechanics as well as common pulmonary function test. As mentioned in the first part of this report, the author considered that the value obtained by "Pressure Efficiency in Respiration" is the objective value rather than the theoretical value of respiratory work, this value decreases with the advance of congestive heart failure and increases during its medical treatment and shows in proportion to the symptom of dyspnea. The reports were also made then that Regitine (=Phenantolamine) was proved to be useful in the diagnosis of pulmonary congestion and discussion was done on several items in relation to the decrease of pulmonary compliance in congestive heart failure.