Scheduled injection of ramosetron for prevention of nausea and vomiting following single-port access total laparoscopic hysterectomy: a prospective randomized study

The purpose of this study was to evaluate the effectiveness of scheduled ramosetron injections for controlling postoperative nausea and vomiting (PONV) after single-port access total laparoscopic hysterectomy (SPA-TLH). Ninety patients who underwent SPA-TLH at the Korean National Health Insurance Service Ilsan Hospital between June 2013 and July 2014 were enrolled in this prospective, randomized, double-blinded, placebo-controlled study. The patients were divided into 2 groups as follows: the ramosetron group (0.3 mg intravenously [IV]; n=45) and the placebo group (normal saline IV; n=45). Both groups received their respective injections 12 and 24 hours post surgery. The incidence and severity of PONV (numerical rating scale, 0-10), and the use of rescue antiemetics post surgery were evaluated. Demographic and perioperative statistically significant differences were not observed between the 2 groups. The incidence of PONV in the ramosetron and placebo groups was 46.7% and 51.1%, respectively ( =0.51). We found significant differences in the severity of PONV between the 24- to 48-hour postoperative periods in both groups (ramosetron group, =0.04 and placebo group, =0.03). The use of rescue antiemetics was significantly lower in the ramosetron group than in the placebo group ( =0.02). After general anesthesia, scheduled injections of ramosetron 12 and 24 hours after SPA-TLH reduced the severity of PONV and the use of rescue antiemetics. Administration of ramosetron can be considered not only immediately after SPA-TLH but also during the first 24-hour recovery period. ClinicalTrials.gov Identifier: NCT02011659.