Postoperative Nausea and Vomiting
Conditions
Brief summary
Opioid-based intravenous patient-controlled analgesia (IV-PCA) offers excellent pain control, however, its use inevitably increases the incidence of postoperative nausea and vomiting (PONV). Ramosetron and palonosetron are commonly used 5-HT3 antagonists for the prevention and treatment of PONV. It is not clear which one has superior antiemetic efficacy for the prevention of PONV in patients using opioid-based IV-PCA. The antiemetic efficacy of 5HT3 antagonists may be influenced by polymorphism of ABCB1, a drug-transporter gene. This study evaluates relative antiemetic efficacy of ramosetron and palonosetron in patients using IV-PCA after spinal surgery and impact of ABCB1 polymorphism on the antiemetic efficacy of the ramosetron and palonosetron. The incidence and intensity of PONV during postoperative 48 h will be assessed. ABCB1 polymorphisms 3435C\>T and 2677G\>T/A will be evaluated in all patients.
Interventions
ramosetron 0.3 mg IV 20 min before the end of surgery and 24 h after the surgery
palonosetron 0.075 mg IV 20 min before the end of surgery and 24 h after the surgery.
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients aged 20-85 yr * undergoing spine surgery
Exclusion criteria
* Taking steroids or opioids preoperatively * GI motility disorder * Uncontrolled diabetes * Severe renal or hepatic disease * Transfer to ICU postoperatively * Obesity (BMI\>35 kg/m2) * Use of antiemetic agent within 24 h preoperatively * Pregnancy * Psychiatric disease * Drug or alcohol abuser * Malignancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| number of postoperative nausea and vomiting incidence | during postoperative 48h |
Countries
South Korea