Zhongguo zhen jiu = Chinese acupuncture & moxibustion
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To investigate the intervention effect of transcutaneous electrical acupoint sitmulation (TEAS) on heart under limiting level of controlled hypotension. ⋯ TEAS combined with anesthesia for controlled hypotension can elevate myocardial effect of anti-oxide free radical, reduce the postoperative release of LDH and CK-MB, so as to produce myocardial protection.