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Table 1 Treatment methods of electroacupuncture and acupoints

From: Effect of electroacupuncture on discomfort during gastroscopy: a study protocol for a randomized controlled trial

  EA group SEA group
Acupoints Hegu (LI4), Neiguan (PC6), Zusanli (ST36), Liangqiu (ST34) Non-acupoints as shown in Table 3
Depth of insertion 10 mm:LI4 PC6;30 mm:ST36 ST34 Superficial acupuncture
Needle type Steel needles (Wuxi Jiajian Medical Co. Ltd. Wuxi, China) The same as EA group
Needle sensation With de-qi sensation Without de-qi sensation
Electric stimulation Two pairs of needles: Two pairs of needles:
  LI4–ST36 (bilaterally) LI4–ST36 (bilaterally)
  Connected to CMNS6-1 (Wuxi Jiajian Medical Device CO., China) Connected to CMNS6-1 (Wuxi Jiajian Medical Device CO., China)
  Deliver continuous wave-type low-frequency 2 Hz and current of 2 mA No electrical current delivered
  1. EA electroacupuncture, SEA sham electroacupuncture