Principal Investigator is away on business

Postoperative nausea and vomiting (PONV) is one of the most common and distressing complications after anaesthesia and surgery, and may lead to serious postoperative complications This prospective, randomized study designed to evaluate the best injection time to get the prophylactic anti-emetic efficacy of ramosetron, a newly developed 5-HT(3) antagonist in patients undergoing facial bone surgery.

1. Participants

   • 100 patients with undergoing facial bone surgery are going to be randomly allocated to one of the 3 groups

2. Randomization

   • G1(n=33) - Ramosetron 0.3mg i.v. just before the beginning of the surgery
   • G2(n=33) - Ramosetron 0.3mg i.v. just after the end of the surgery and moving into the Recovery room
   • G3(n=33) - No medication but regular antiemetics i.v. if the patient wants

3. The primary endpoint

   • the incidence of nausea and vomiting for 24 h after surgery at 0-6h, 6-12 h and 12-24 h

4. The secondary endpoints

   • the severity of nausea, need for rescue medication
   • patient satisfaction with efficacy

Inclusion Criteria:

• Patient who sign informed consent form for the study
• patient who are considered as surgical candidates with facial bones fracture

Exclusion Criteria:

• Patient who have had nausea/vomiting episodes