Postoperative nausea and vomiting (PONV) is a common and distressing complication in patients undergoing general anesthesia. However, although 5-hydroxytryptamine type 3 (5-HT3) receptor antagonists have significantly reduced PONV, it is reported that over 35% of patients treated with ondansetron experience PONV. Though the cause of failure in ondansetron treatment is not clear, the investigators assumed that polymorphism in the 5-HT3 receptor gene would contribute to such inter-individual variation. In this study, the investigators examine whether the polymorphisms of 5-HT3 receptor gene affect the efficacy of ondansetron to prevent PONV in patients undergoing general anesthesia for laparoscopic surgery.
Study Type
INTERVENTIONAL
Allocation
NA
Masking
NONE
Enrollment
198
Thirty minutes before the end of surgery, ondansetron 0.1 mg/kg is administered intravenously. We assess an episode of PONV at first 2 h and 2-24 h after surgery. Genomic DNA was prepared and screened. The incidence of PONV is compared among genotypes in 5-HT3 receptor gene polymorphisms (5-HT3a: S253N; 5-HT3b: Y129S, -100\_-102delAAG).
Associate Professor Department of Anesthesiology and Pain Medicine
Seoul, Seoul, South Korea
The relationship between the incidence of PONV after ondansetron administration and genotypes in 5-HT3 receptor gene polymorphisms ((5-HT3a: S253N; 5-HT3b: Y129S, -100_-102delAAG)
The incidence of PONV after ondansetron administration is compared among genotypes in 5-HT3 receptor gene polymorphisms (5-HT3a: S253N; 5-HT3b: Y129S, -100\_-102delAAG).
Time frame: at first 2 h and 2-24 h after surgery.
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