Antiemetic efficacy of transcutaneous electrical nerve stimulation (TENS) at pericardium 6 acupuncture point (P6) in the treatment of chemotherapy-induced delayed nausea and vomiting (CINV) in stage I to III breast cancer patients during adjuvant/neoadjuvant chemotherapy (Ad/nAd).

TPS648 Background: CINV remain major adverse effects of highly emetic chemotherapy for breast cancer patients (BC). Patients (PT) rate nausea & vomiting as the most feared chemotherapy-related symptoms. There is substantial evidence that P6 (located in the region in the middle of the wrist 3 finger breaths from the juncture of the hand & wrist) acupuncture is an effective antiemetic treatment in a variety of PT including the post-anesthesia, obstetrical, and motion sickness PT. We hypothesized that application of TENS at P6 point will reduce:1) the overall incidence of CINV episodes in stage 1-3 BC PT, 2) the severity & duration of CINV, 3) the requirement for rescue antiemetics 4) & that TENS is well tolerated & feasible. Maxima III Transcutaneous Electrical Nerve Stimulation unit is utilized in this study & is self-administered by PT. Patients and Methods: We are conducting a prospective, randomized, double-blinded, controlled trial to determine if self-stimulating P6 may decrease the incidence and seve...