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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Ondansetron administration group | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| administration of ondanstron and screening of genomic DNA | Dietary Supplement | 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). |
| Measure | Description | Time Frame |
|---|---|---|
| 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). | at first 2 h and 2-24 h after surgery. |
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Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Associate Professor Department of Anesthesiology and Pain Medicine | Seoul | Seoul | 120-752 | South Korea |
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|
| ID | Term |
|---|---|
| D014839 | Vomiting |
| D020250 | Postoperative Nausea and Vomiting |
| ID | Term |
|---|---|
| D012817 | Signs and Symptoms, Digestive |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D009325 | Nausea |
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