THE CHANGES OF PULMONARY HEMODYNAMIICS NEONATAL RSIT / 第二军医大学学报

The right ventricular systolic intervals(RSTI)in health neonates were determined in 72 cases within 6 days after delivery. The RSTI of 22 neonates were compared with before and after inspirated oxygen of high concentration (5 1/min.) within 24 hrs after delivery. Every paremeter of RSTI in each group was contrasted with those of other group in differnt times(or days)The main appearances were significantly,such as shortness of RPEP, prologation of RVET, RPEP/RVET and RICT/RVET decreased.It showed that the right ventricular load was decreased.The ratio among RPEP/RVET, RICT/RVET and neonatal daily age was minus relationship by double curve regression analysis(p