title: Helicobacter pylori infection and postoperative nausea and vomiting.
abstract: OBJECTIVE
  The aim of this study was to identify factors most relevant to postoperative nausea and vomiting (PONV) and determine the association of Helicobacter pylori with PONV.
  
  
  METHODS
  A cross-sectional analytic survey was conducted on 127 elective patients who underwent general and urological surgery at Sina Hospital in Tehran between March 2005 and March 2006. Related factors considered to have a possible effect on the prevalence of PONV events were evaluated by using a special questionnaire and serological laboratory test of H. pylori. Data was analyzed using t test and chi2 test and logistic regression analysis for comparing the variables.
  
  
  RESULTS
  Prevalence of PONV was 54.7% in patients having H. pylori infection. There was no relationship between H. pylori infection and PONV (p>0.05). Prior history of PONV was a significant risk factor for increasing the prevalence of PONV (p<0.05). Also, history of PONV beside female gender, overweighting/obesity and operation type (urologic surgery) could increase the severity of PONV (p<0.05). But, administration of opioids could decrease the severity of PONV (p<0.05).
  
  
  CONCLUSIONS
  It was found that PONV had a high prevalence among patients undergoing urologic and general surgery. H. pylori infection cannot affect the prevalence of PONV. More surveys are needed to develop effective protocols for preventing this common and unpleasant problem.
authors.affiliation: Department of Surgery, Tehran University of Medical Sciences, Sina Trauma and Surgery Research Center, Tehran, Iran. swt_f@yahoo.com
authors.forename: Ali Yaghoobi
authors.initials: AY
authors.lastname: Notash
authors.forename: Aidin Yaghoobi
authors.initials: AY
authors.lastname: Notash
authors.forename: Hadi Ahmadi
authors.initials: HA
authors.lastname: Amoli
authors.forename: Adel Yazdankhah
authors.initials: AY
authors.lastname: Konari
authors.forename: Mahrokh
authors.initials: M
authors.lastname: Daemi
authors.forename: Kamyab
authors.initials: K
authors.lastname: Alizadeh
authors.forename: Gholamreza
authors.initials: G
authors.lastname: Habibi
mesh_terms: D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D005260:Female; D013502:General Surgery; D016481:Helicobacter Infections / Q000453:epidemiology / Q000382:microbiology*; D016480:Helicobacter pylori; D006801:Humans; D007492:Iran; D008297:Male; D008875:Middle Aged; D020250:Postoperative Nausea and Vomiting / Q000453:epidemiology / Q000382:microbiology*; D012307:Risk Factors; D012737:Sex Factors; D013521:Urologic Surgical Procedures, Male