title: Clinical significance of routine urinary bacterial culture after transurethral surgery: results of a prospective multicenter study.
abstract: OBJECTIVE
  The objective of this study was to evaluate the prevalence and the clinical outcomes of asymptomatic postoperative bacteriuria after transurethral operations, along with the need for postoperative urinalysis.
  
  
  METHODS
  A prospective study of 456 patients who underwent transurethral resection of the prostate (TURP) or transurethral resection of the bladder (TURB) at 2 urological centers in France, between January 2008 and March 2009. All patients had urine cultures preoperatively, on the day of catheter removal, and at 1 month postoperatively. Only patients with symptoms suggesting a urinary tract infection were treated. Univariate logistic regression and multiple logistic regression were used to estimate the odds ratios and P values.
  
  
  RESULTS
  TURP was performed in 217 patients, and TURB was performed in 239 patients. A total of 35 patients (7.6%) had positive postoperative urine cultures. Only 9 patients (1.9%) were treated. Patient age and postoperative catheterization duration were identified as risk factors for postoperative bacteriuria (OR = 1; 95% CI = 1.0-1.1; P = .03 and OR = 3.6; 95% CI = 2.3-5.7; P = .0001, respectively), and preoperative bacteriuria was not risk factor for postoperative bacteriuria (OR = 0.9; 95% CI = 0.3-1.4; P = .8). A total of 45 patients had a positive urinalysis at 1 month, and 29 presented an infectious complication during follow-up. A positive postoperative urinalysis was not a risk factor either for a positive urinalysis at 1 month or for an infectious complication during follow-up (OR = 3.2; 95% CI = 0.4-22.4, P = .2 and OR = 1.4; 95% CI = 0.4-4.9, P = .5, respectively).
  
  
  CONCLUSIONS
  Based on our study findings, postoperative bacteriuria is not a risk factor for infectious postoperative complications. Therefore, routine postoperative urinalysis should be advocated only in symptomatic patients.
authors.affiliation: Urology Department, Hopital Diaconesses, Paris, France.
authors.forename: Adil
authors.initials: A
authors.lastname: El Basri
authors.forename: Andreas
authors.initials: A
authors.lastname: Petrolekas
authors.forename: Gerard
authors.initials: G
authors.lastname: Cariou
authors.forename: Jean Dominique
authors.initials: JD
authors.lastname: Doublet
authors.forename: Andras
authors.initials: A
authors.lastname: Hoznek
authors.forename: Franck
authors.initials: F
authors.lastname: Bruyere
mesh_terms: D000368:Aged; D058345:Asymptomatic Infections; D001437:Bacteriuria / Q000453:epidemiology* / Q000473:pathology; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011183:Postoperative Complications / Q000453:epidemiology; D015995:Prevalence; D011446:Prospective Studies; D012307:Risk Factors; D020728:Transurethral Resection of Prostate / Q000009:adverse effects; D016482:Urinalysis / Q000706:statistics & numerical data; D001743:Urinary Bladder / Q000601:surgery*