Electroacupuncture (EA) Promotes Gastrointestinal Functional Recovery After Radical Colorectal Cancer Surgery

Acupoint: bilateral Hegu (LI4), Zhigou (SJ6), Zusanli (ST36), Shangjuxu (ST37). All acupoints will be taken by tonifying method after obtaining qi, and unilaterally connected to an electroacupuncture instrument for electrical stimulation with a continuous wave frequency of 5 Hz and a stimulation intensity as tolerated by the patient for 30 min each time. Acupuncture stimulation was given every 12 h. The duration of treatment was from postoperative to the fourth postoperative day (d0-d4) or until the patient's first postoperative anal exhaust or until the fourth day.

Sham acupuncture needle will have the same appearance as the traditional needle, with a blunt tip (Suzhou Medical Supplies Factory, specification 0.25×40mm), lifting and inserting and twisting, but not piercing the adhesive pad. The output wire of the special sham electroacupuncture apparatus is cut in the middle, and the appearance is as usual; that is, the electroacupuncture apparatus shows an on state, but is not actually energized; the electroacupuncture points, acupuncture time points, frequency, retention time, and duration of treatment are the same as the intervention group, and the patients are informed that it is an effective light current input and may not feel stimulation, but the current is output.