Ligation of the pulmonary artery as a means of controlling the disease in cases of chronic infections of the lung, tuberculous or otherwise, has been done by Sauerbruch, Meyer, Lilienthal and others. The results have not been sufficiently striking to establish the operation as one of choice. Apparently in most instances palliation only was obtained, and better results are obtained by extrapleural thoracoplasty.
Ligation of the pulmonary artery has been suggested by several writers as a step preliminary to lobectomy in cases of bronchiectasis of a single lobe or of neoplasm.
In the following two cases, ligation of the branch of the pulmonary artery to the lower lobe of the right lung was performed in an attempt to control the symptom of hemoptysis. In each case partial thoracoplasty had been performed, together with phrenic neurectomy, and in each the symptom of pulmonary hemorrhage persisted to such a degree, in spite