MODERATE TO SEVERE PULMONARY HYPERTENSION ACCOMPANYING PATENT DUCTUS ARTERIOSUS

Abstract
In a series of 290 cases of patent ductus arteriosus treated by operation over a period of 12 years, 15 were encountered with a pulmonary artery pressure of 50 mm. Hg or above. In all, closure was effected without mishap, although in 2 the pulmonary hypertension appears irreversible.