• Hong Soo Jung, Jaewon Huh, Youngchan Kim, Sang Hyun Hong, and Jaemin Lee.
• Department of Anesthesiology and Pain Medicine, St. Vincent's Hospital Department of Anesthesiology and Pain Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
• Medicine (Baltimore). 2018 Aug 1; 97 (31): e11503.

BackgroundCurrently, 5-hydroxytryptamine type 3 (5-HT3) receptor antagonists are indicated to slow gastrointestinal motility in the diarrhea-predominant subtype of irritable bowel syndrome. They are commonly used to prevent or treat postoperative nausea and vomiting (PONV) and opioid-induced nausea and vomiting (OINV). We conducted a prospective, randomized, double-blinded study to investigate whether the continuous administration of ramosetron, a selective 5-HT3 receptor antagonist, for preventing PONV and/or OINV after laparoscopic distal gastrectomy (LDG) might influence bowel function recovery.MethodsPatients scheduled to undergo LDG were randomly assigned to 1 of 3 treatment regimens: no prophylactic ramosetron (Group C); ramosetron 0.6 mg added to 2-day intravenous patient-controlled analgesia (IV-PCA) (Group R0.6); and ramosetron 1.2 mg added to 2-day IV-PCA (Group R1.2). Postoperative recovery profiles of bowel function, incidence of postoperative nausea/vomiting and pain, and perioperative data that affected bowel function recovery were evaluated.ResultsSeventy-three patients completed the study protocol. Parameters associated with postoperative recovery of bowel function, such as time to first flatus, time to first bowel movement, time to first defecation, and time to commencement of soft diet, were not significantly different between the 3 groups. The incidence of nausea 2 to 24 hours after surgery was significantly lower in Group R0.6 (20.0%) and Group R1.2 (12.5%) than in Group C (45.8%) (P < .022). The ratio of complete response 2 to 24 hours after surgery was significantly higher in Group R0.6 (80.0%) and Group R1.2 (87.5%) than in Group C (54.2%) (P < .022). The incidence of retching 24 to 48 hours after surgery was significantly lower in Group R0.6 (0.0%) and Group R1.2 (4.2%) than in Group C (16.7%) (P < .043).ConclusionContinuous administration of ramosetron with patient-controlled analgesia to prevent PONV and OINV after LDG did not delay postoperative bowel function recovery.

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