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When electricity is connected to the inserted filiform needles, this type of acupuncture is called electro-acupuncture (EA). The application of EA may be considered as one of the most significant advancement of acupuncture techniques to date. Owing to its ease of control, reproducibility, and continuous operation without the need for manual labor, EA is convenient to apply and can greatly enhance clinical effectiveness.


EA is especially suitable for patients with severe pain or motor dysfunction. The success of acupuncture anesthesia is directly attributed to the application of EA. For therapeutic goals, commonly used EA parameters are with direct current using low volts (4~9 V) and frequencies (4~10 Hz). Most patients can only feel mild pulsating sensations at the punctured area, and can generally tolerate it well.