The goal of this clinical trial is to learn the effect of ear electroacupuncture BFA therapy in reducing pain, analgesic dose, and improving patient quality of live post percutaneous nephrolithotomy surgery. The main questions it aims to answer are:
* Does BFA ear electroacupuncture reduce postoperative pain of percutaneous nephrolithotomy surgery better than sham electroacupuncture group? * Does BFA ear electroacupuncture reduce postoperative analgesic dose of percutaneous nephrolithotomy surgery better than sham electroacupuncture group? * Does BFA ear electroacupuncture improve postoperative quality of life of percutaneous nephrolithotomy surgery better than sham electroacupuncture group?
Researchers will compare ear electroacupuncture BFA to sham electroacupuncture to see the different analgesia effect between these groups.
Participants will:
* Get ear electroacupuncture BFA or sham electroacupuncture therapy, 2 hours before surgery for 30 minutes * Take drug paracetamol 1000 mg intravenous after surgery according to the needs of the patient's pain complaints after surgery in both groups
Men or women aged 18-65 years
Patients who have been diagnosed with kidney stones measuring > 2 cm and will undergo PCNL surgery
VAS score <7, assessed 2 hours before PCNL surgery
Receive standard analgesic therapy
Kidney anatomical abnormalities
Ear deformities (microtia)
Patients with cognitive impairment, uncooperative (receiving antidepressants or strong opioid or narcotic analgesics)
Tumors, wounds or skin infections in the needling area.