Document Classification

Section Type: METHODS

Text: The general anesthesia applied on them during operation was induced by combined midazolam, fentanyl, propofol and vecuronium bromide, but for those in Group B, 15 min of electric stimulation at bilateral Neiguan (PC6), Hegu (LI4) and Quchi (LI11) was given with an acupuncture anesthesia apparatus before the drug induction as acupuncture anesthesia induction, then the general anesthesia started and maintained the same as that in Group A. Changes of cardiac function and hemodynamics were monitored using thoracic electrical bio-impedance method at different time points of operation, i. e. the baseline before induction (T0), after induction when loss of consciousness (T1), during intubation (T2), beginning of operation (T3), ending of operation (T4), during extubation (T5) and 10 min after extubation (T6).