经皮氧分压监测在骨科手术中的应用

目的 评价经皮氧分压(TcPO2)监测在临床麻醉中的应用价值.方法 对28例在全麻下实施骨科手术的患者进行持续TcPO2监测,分别在吸入氧浓度(FiO2)为21%、40%、70%与100%时进行动脉血气分析测定,并与动脉血氧分压(Pa02)进行对比,比较4组不同FiO2的经皮氧分压指数(TcPO2/PaO2).结果 在...

Application of transcutaneous partial pressure of oxygen monitoring in orthopedics surgery

Objective To evaluate the application value of transcutaneous partial pressure of oxygen(TcPO2) monitoring in clinical anesthesia.Methods Twenty-eight patients who underwent general anesthesia and orthopedics surgery were studied.The inhaled oxygen concentrations(FiO2) were 21%,40%,70% and 100%,and the TcPO2 were measured with TC devices and arterial blood gas analysis were tested simultaneously.Measurements of TcPO2 were compared with arterial blood oxygen pressure(PaO2) in different inhaled oxygen concentrations respectively,and four groups of transcutaneous oxygen indexes(TcPO2/PaO2) were compared.Results Although inhaled oxygen concentrations were different,TcPO2 correlated positively with PaO2.When FiO2 was 21%,the correlation coefficients(r)for TcPO2 and PaO2 was 0.599(P < 0.01);while when FiO2 was 40%,70% and 100%,the r was 0.715(P < 0.01),0.718(P < 0.01),and 0.708 respectively(P < 0.01).There was no significant difference in four groups in TcPO2/PaO2(P = 0.063).Conclusions TcPO2 reflects the trend of PaO2 change more accurately and TcPO2/PaO2 can effectively reflect tissue perfusion.Transcutaneous partial pressure of oxygen monitoring in clinical application of anesthesia is feasible.