Application of Propfol Closed-loop Anesthesia System in Pediatric Otorhinolaryngologic Surgery / 中国医科大学学报

ABSTRACT

Objective To evaluate the application of propfol?remifentanil closed?loop and opened?loop anesthesia in children otorhinolaryngologic operation under BIS monitoring. Methods Fourty children underwent elective children tonsillectomy and adenoidectomy were recruited for the study and randomly divided into two groupsclosed?loop group(group T)and opened?loop group(group C),with 20 children each. The two groups all received total intravenous induction,then the subjects of closed?loop group were administrated with a method of system automatic regulation of plasma target control and the opened?group cases underwent manual adjustment of plasma target control method according to the BIS value during op?eration. The variables of non?invasive blood pressure(BP),heart rate(HR),pulse oxygen saturation(SpO2),electrocardiogram(ECG),bispec?tral index(BIS),the number of times the manual adjustment of propfol target control applied,and recovery time,were recorded respectively at the time points of before anesthesia(T0),immediately after intubation(T1),5 min after intubation(T2),10 min after(T3),15 min after(T4),30 min after(T5)and the removal of endotracheal intubation(T6). Results The total dosage of propfol in group T was less than the dosage in group C with dosage decrease of 9.83%;there was no significant statistical difference of the total dosage of remifentanil. Conclusion The use of propfol?remi?fentanil closed?loop anesthesia in children otorhinolaryngologic operation is safe,easy,and of strong controllability,which should be widely promoted.