title: Effectiveness of ciprofloxacin prophylaxis in preventing bacteriuria caused by urodynamic study: a blind, randomized study of 192 patients.
abstract: OBJECTIVE
  To determine the efficacy of prophylactic ciprofloxacin in preventing urinary tract infections caused by urodynamic study (UDS).
  
  
  METHODS
  A total of 210 patients presenting for UDS during a 16-month period were offered enrollment in the study. A clean-catch midstream urine sample was taken 24 hours before and 48 to 72 hours after the procedure and after microscopic examination and culture were done. All patients underwent a standard UDS. The 192 patients who had sterile urine before intervention were included in the study. Randomly, 98 of the 192 patients were orally given 500 mg of ciprofloxacin 1 hour before the urodynamic intervention and 94 were not given anything. The patients who were found to have significant bacteriuria after UDS were followed up and treated properly.
  
  
  RESULTS
  Eighteen patients (8.6%) who had significant bacteriuria in the urine culture before UDS were excluded from the study. The rate of significant bacteriuria in the urine culture after UDS was 7.3% overall, 1% in the prophylaxis group, and 14% in the controls, a significant difference (P = 0.002). The most common uropathogen was Escherichia coli (57%). Three independent risk factors were identified: not giving antibiotic prophylaxis before UDS; antibiotic use in the preceding month; and the presence of pyuria before UDS.
  
  
  CONCLUSIONS
  Urinary tract infections after UDS decreased from 14% to 1% with a single dose of ciprofloxacin 500 mg orally before UDS. We recommend antibiotic prophylaxis for patients undergoing a UDS.
authors.affiliation: Department of Clinical Bacteriology and Infectious Diseases, Eskisehir Osmangazi University Medical Faculty, Eskisehir, Turkey. edoyuk@ogu.edu.tr
authors.forename: Elif Doyuk
authors.initials: ED
authors.lastname: Kartal
authors.forename: Aydin
authors.initials: A
authors.lastname: Yenilmez
authors.forename: Abdurrahman
authors.initials: A
authors.lastname: Kiremitci
authors.forename: Hatice
authors.initials: H
authors.lastname: Meric
authors.forename: Metin
authors.initials: M
authors.lastname: Kale
authors.forename: Gaye
authors.initials: G
authors.lastname: Usluer
mesh_terms: D000890:Anti-Infective Agents / Q000627:therapeutic use*; D019072:Antibiotic Prophylaxis; D001437:Bacteriuria / Q000517:prevention & control*; D002939:Ciprofloxacin / Q000627:therapeutic use*; D003950:Diagnostic Techniques, Urological / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014552:Urinary Tract Infections / Q000517:prevention & control*; D014563:Urodynamics
chemical_list: D000890:Anti-Infective Agents; D002939:Ciprofloxacin