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Mean arterial pressure (MAP), heart rate (HR), and peripheral capillary oxygen saturation (SPO2) before premedication (T1), after etomidate injection (T2), after uterus expansion (T3), and after recovery from anesthesia (T4) in control patients and patients who received transcutaneous acupoint electrical stimulation (TAES) and/or low-dose sufentanil pretreatment before etomidate injection.
