Ameliorative Effect of Transcutaneous Electrical Acustimulation on pain induced by TACE in patients with Hepatocellular Carcinoma: a Multi-Center Randomized Controlled Study

INTERVENTION: Group A:transcutaneous electroacupuncture, TEA;Group B:sham transcutaneous electroacupuncture; CONDITION: Hepatocellular Carcinoma PRIMARY OUTCOME: VAS;the ratio of morphine use; SECONDARY OUTCOME: VAS;Dose of morphine;Nausea and vomiting score;HRV;EGG;IL‐6;NE;TNF‐a;IL‐1ß;NGF; INCLUSION CRITERIA: 1. Willing to sign the informed consent; 2. Aged 18‐75, both sexes; 3. Clinical diagnosis of primary hepatocellular carcinoma; 4. Child‐Pugh A/B liver function, ECOG PS score 0‐1; 5. Barcelona lesions (BCLC) stage A, B and some C, suitable for TACE.