肺表面活性物质（ＰＳ）成功用于临床后，近十年来国内外对其作用、应用范围、影响疗效的因素等方面都进行了广泛深入的研究，也取得了可喜的进步。ＰＳ替代疗法对降低新生儿呼吸窘迫综合征（ＮＲＤＳ）的病死率和发病率起了很大的作用，现综述如下。１肺表面活性物质（ｐ... Pulmonary surfactant (PS) has been successfully used in clinical practice. In the recent ten years, extensive and in-depth studies have been conducted on its role, application scope, factors affecting the efficacy and other aspects, and also made gratifying progress. PS replacement therapy to reduce neonatal respiratory distress syndrome (NRDS) mortality and morbidity rates play a significant role, are summarized below. 1 pulmonary surfactant (p ...