Effects of positive end-expiratory pressure on pulmonary shunt during geneal anesthesia and after the operation
- VernacularTitle:呼气终末正压通气对麻醉中和术后肺血分流的影响
- Author:
Jia-He WANG
;
Ya-Hui WANG
;
Wen-Xia YANG
;
- Publication Type:Journal Article
- Keywords:
Positive end-expiratory pressure Pulmonary shunt
- From:
Chinese Journal of Anesthesiology
1994;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
The effects of positive end-expiratory pressure (PEEP) on pulmonary shunt were studied during gen- eral anesthesia and postoperative period.Twenty cholecystectomy patients were randomly divided into experiment group (group P) and control group (group Z). PEEP and ZEEP were used separately after induction. Artery blood and mixed blood from the right ventricle were taken for blood gas analysis and determine the amount of pulmonary shunting before anesthesia. half and hour, one and half an hour and two and half an hour after anesthesia and one hour after the operation.The results showed that shunt in group P decreased gradually during general anesthesia and returned to the level of preoperation at an hour after operation. Shunt in group Z was increased continually and the level was significantly higher than preoperation an hour after operation. Shunt between two groups was significant difference (P
