title: A prospective study of incidence of postoperative nausea and vomiting in a tertiary care hospital in Oman.
abstract: BACKGROUND
  This is a pilot study conducted in a tertiary referral center in Oman, to assess the incidence of postoperative nausea and vomiting (PONV) so that an institutional policy towards its alleviation could be evolved.
  
  
  METHODS
  This is a prospective study of 491 patients undergoing obstetric and gynecological, general surgical, pediatric and urological surgical procedures that received general anesthesia, regional anesthesia or a combination of both. Data regarding the incidence of PONV was collected and was documented in a standardized questionnaire based on the patient history, anesthetic protocol, a postoperative interview of the patient and a review of the nursing records.
  
  
  RESULTS
  The over all incidence of PONV in our institution was 19.6%. The occurrence of vomiting compared to nausea or retching was high (p < 0.01). PONV was less in urological cases (p < 0.05) compared to general surgical cases. The incidence of PONV was similar (p > 0.05) in both groups, whether the patients received anti emetics along with pre-medication or not. PONV occurrence was significant in the first 6 hrs postoperatively (p < 0.01). In those patients who received propofol the prevalence of PONV was significantly less (p < 0.01).
  
  
  CONCLUSIONS
  There should be a reassessment of the existing anti emetics in the institution. Propofol was found to be a good anti emetic.
authors.affiliation: Royal Hospital, Muscat, Oman. madan@omantel.net.om
authors.forename: Madan Mohan
authors.initials: MM
authors.lastname: Maddali
authors.forename: Jotish
authors.initials: J
authors.lastname: Mathew
authors.forename: Jutta
authors.initials: J
authors.lastname: Fahr
authors.forename: Abdul-Wahab
authors.initials: AW
authors.lastname: Zarroug
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009850:Oman / Q000453:epidemiology; D020250:Postoperative Nausea and Vomiting / Q000453:epidemiology* / Q000517:prevention & control; D011446:Prospective Studies