Transcutaneous electrical acupoint stimulation to prevent nausea and vomiting after spinal surgery

You may qualify if

• Male and female patients , 18 or older
• American Society of Anesthesiologists (ASA) classification I or II or III
• Undergoing elective spinal surgery expected to last no more than four hours (from induction of anesthesia to extubation).
• Capable and willing to consent

You can't join if

• Neuraxial (intrathecal or epidural) block
• Significant ongoing history of vestibular disease or dizziness
• Nausea or vomiting within 24 hours prior to surgery, use of antiemetic or emetogenic drugs within 3 days of surgery
• Documented alcohol or substance abuse within 3 months before the surgery
• Limb abnormalities such as burn and amputation.
• Poorly controlled diabetes mellitus (fasting plasma glucose >126 mg/dL or <70 mg/dL)
• Implantation of metal/electrical devices, such as nerve stimulator, cardiac pacemaker, cardioverter, defibrillator and internal hearing aids
• Rash, local infection, keloid, any dermatologic condition that could interfere with the acupoint stimulation area
• Documented alcohol or substance abuse within 3 months before surgery
• Presence of clinically diagnosed major psychiatric condition such as bipolar disorder, uncontrolled major depression, or schizophrenia
• Chemotherapy or radiation therapy within 7 days before surgery
• Investigational product use within 3 months prior surgery
• Any condition, which in the opinion of the investigator would make subject ineligible for participation in the study (history of unstable cardiovascular, pulmonary, renal, hepatic, seizures)
• Special population (prisoners, pregnant and lactating women)