EA group | SEA group | |
---|---|---|
Acupoints | All sessions: LI4, PC6, HT7, LI20, ST36, GV23 Postoperatively: GV20, GV29, EX-HN22, SP6 | All sessions: LI4, PC6, HT7, LI20, ST36, GV23 Postoperatively: GV20, GV29, EX-HN22, SP6 |
Depth of insertion | 10 mm: HT7, GV20, GV23, GV29, LI4, LR3 | No insertion |
30 mm: LI20, SP6, PC6, ST36 | ||
Needle type | Steel needles (Wuxi Jiajian Medical Co. Ltd. Wuxi, China) | Blunt needles (Streitberger placebo needle) |
Needle sensation | With de-qi sensation | Without de-qi sensation |
Electric stimulation | Three pairs of needles: LI4–ST36 (bilaterally), GV20–GV23 Connected to an electric stimulator (HANS-200B) Deliver continuous wave-type mid-frequency (15Hz) current of 2 mA | Three pairs of needles: LI4–ST36 (bilaterally), GV20–GV23 Connected to an electric stimulator (HANS-200B) No electrical current delivered |