Effect of Perioperative Transcutaneous Electrical Acupoint Stimulation on Postoperative Nausea and Vomiting and Gastrointestinal Function in Patients undergoing Kidney Transplantation
ZHANG Guicheng,YU Wen-li
Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
Abstract:
Objective To evaluate the antiemetic effects and gastrointestinal (GI) function of transcutaneous acupoint stimulation(TEAS)in patients undergoing kidney transplantation. Methods 60 patients, scheduled for kidney transplantation under general anesthesia, aged 18 to 65 year old, ASA Ⅱ ~ Ⅲ , were randomly divided into two groups (n=30 each) who using sealed envelopes into sham stimulation group (group S) and TEAS group (group T). The patients in group T received TEAS on bilateral PC6-LI4-ST36 acupoints, performing from 30 mins before induction of anesthesia to the end of operation, which stimulus frequency was 2/100Hz and the intensity was the maximum current that could be tolerated. While the patients in group S adhered the electrodes 0.5cm lateral to the selective acupoints but received no stimulation. Visual analogue score (VAS) (0=no，10=worst) were adopted to evaluate the level of nausea, vomiting, abdominal distension and abdominal pain separately at 2 h, 6 h, 12 h, 24 h after operation. Besides total amount rescue antiemetic and analgesics, length of PACU stay, recovery time of gastrointestinal function and incidence of postoperative nausea and vomiting,abdominal distension, abdominal pain during first 6h and (6h to 24h) after operation were also recorded.Results VAS scores of nausea, vomiting, abdominal distension and abdominal pain at 2h,4h,12h,24h (except vomiting) after operation in group T were lower than those in group S. The incidence of postoperative nausea in group T and S during first 6h and (6h to 24h) were 20% vs 47%,13% vs 55%. Abdominal pain were 33% vs 67 %, 27 % vs 83%. Recovery time of bowel sounds and expelling gas time,length of PACU stay in group T and S were (15±3) h vs(18±4) h, (22±4) h vs (26±4) h, (23±6) h vs (31±5) h , which the difference was statistically signi?cant (P<0.05). However, there was no statistically signi?cant difference in vomiting at 24h, consumption of rescue antiemetic and analgesics after operation, incidence of postoperative vomiting and abdominal distension as well as other complications (P>0.05). Conclusion Perioperative TEAS could decrease the incidence of PONV and other GI motility as well as promote the recovery of gastrointestinal function.
