Changes of respiratory function before and after cardiopulmonary bypass in children with pulmonary hypertension
- VernacularTitle:先心病肺高压小儿体外循环转流及分流修复前后呼吸功能的变化
- Author:
Jin ZHANG
;
Zhanming WANG
;
Bingjun ZHANG
- Publication Type:Journal Article
- Keywords:
Pulmonary hypertension Respiratory mechanics CPB
- From:
Chinese Journal of Anesthesiology
1996;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Changes in respiratory function before and after CPB in 40 children with state of left-to-right shunt of VSD were studied. Among the cases, 20 of them were with pulmonary hypertension (PH group ) and 20 without PH (control group). Before CPB, resist ante of inspira tion (RI) and resistance of expiration (RE)in PH group (23.87?7.53,42.98?12.1) were significantly higher than those of control group(RI 17.95?7.53,RE 34.95?5.13);compliance of lung-thorax(CLT) in PH group(11.58?4.87) was significantly lower than that of control group(14.32?1.99). After CPB. both RI (30.94?11.89) and RE(46.43?9.9) in PH group were greatly higher than those in control group (28.00?9.29,46.43?9.9);CLT (10.98?4.6) was lower than that of control group (12.3?2.68). In PH group,the PaO_2 decreased and the magnitude of A-aDO2 increased much more than those in control group. The results suggest that respiratory function in the children with PH might not be improved immediately after CPB separation.
