Table 1: Demographic data and physical condition (ASA score) of groups receiving ondanesteron (group O), dexamethasone (group D) or distilled water (group DW) Moreover, there were no statistically significant differences between the three groups in terms of systolic

and diastolic pressure, duration of operation, duration of recovery, SPO2 before induction or SPO2 at emergence from recovery (%) (table 2).The average Inhibitors,research,lifescience,medical systolic or diastolic blood pressure measured before the induction in the three groups were not significantly different. Table 2: Blood pressure (mmHg),saturation of peripheral oxygen (SPO2), duration of operation, duration of recovery of groups receiving ondanesteron (group O), dexamethasone (group D) or distilled water (group DW) There was no significant difference among PONV in the

three groups in Inhibitors,research,lifescience,medical the first two hours after the surgery. However, in 2-8, 8-16 and 16-24 hours after the surgery the PONV in O group and D groups were significantly lower than that in the control group. Moreover, PONV at 8-16 and 16-24 hours after the surgery was significantly lower in D group compared to that of O group (Table 3). Table 3: The number and percentage of selleck inhibitor nausea and vomiting at various postoperative intervals in groups receiving Inhibitors,research,lifescience,medical ondanesteron (group O), dexamethasone (group D) or distilled water (group DW) Table 4 shows the intensity of nausea and vomiting according to Bellville scoring scale. During 0-2 hours after the operation there were only few cases of nausea, which were not significantly different among the three groups. During 2-8 and 8-16 hours post Inhibitors,research,lifescience,medical operation, there were cases of nausea and nausea

with belching, but no vomiting. The incidence of nausea and nausea with belching in O or D group was Inhibitors,research,lifescience,medical significantly higher than those in the control groups. During 16-24 hours nausea, but nausea with belching or vomiting, occurred in all groups. The incidence of nausea was significantly lower in O and D groups than that in the control group. Table 4: Intensity of nausea and vomiting according to Bellville scoring scale (lack of nausea and vomiting=0, nausea=1, tuclazepam nausea with belching=2, and vomiting=3) at various postoperative intervals in groups receiving ondanesteron (group O), dexamethasone (group … Discussion In the present study, the effects of administration of ondansetron (4 mg IV) and dexamethasone (8 mg IV) before anesthetic induction on postoperative nausea and vomiting was evaluated in tympanoplasty type I surgical operations. The incidence rate of postoperative nausea and vomiting after tympanoplasty surgical operations has been reported to be significant.7 The high incidence of nausea and vomiting after tympanoplasty might be attributed to the complex innervation of this area by the cranial nerves V, VII, VIII and X, and cervical nerves II and III.