title: A Comparison of Bladder Catheterization and Suprapubic Aspiration Methods for Urine Sample Collection From Infants With a Suspected Urinary Tract Infection.
abstract: This study compares 2 sampling methods for urine cultures in young infants. We analyzed data on urine samples obtained from 83 infants using 2 sources of urine: suprapubic bladder aspiration (SPA) and bladder catheterization. All specimens were subjected to both urinalysis and culture, and the results compared. Eighty-three infants with positive urine culture results obtained by bladder catheterization were subjected to SPA. Of these, only 24 (28.9%) and 20 (24%) yielded positive urine culture and abnormal urinalysis data, respectively. Samples obtained via catheterization had a high false-positive rate (71.1%). The sensitivity and specificity of urinalysis were 66.7% (95% CI, 44.68% to 84.33%) and 93.22% (95% CI, 83.53% to 98.08%), respectively. In infants younger than 12 months, SPA is the best method to avoid bacterial contamination, showing better results than transurethral catheterization.
authors.affiliation: Tepecik Teaching and Research Hospital, Izmir, Turkey kayieliacik@gmail.com.
authors.forename: Kayi
authors.initials: K
authors.lastname: Eliacik
authors.affiliation: Tepecik Teaching and Research Hospital, Izmir, Turkey.
authors.forename: Ali
authors.initials: A
authors.lastname: Kanik
authors.affiliation: Tepecik Training and Research Hospital, Izmir, Turkey.
authors.forename: Onder
authors.initials: O
authors.lastname: Yavascan
authors.affiliation: Tepecik Training and Research Hospital, Izmir, Turkey.
authors.forename: Caner
authors.initials: C
authors.lastname: Alparslan
authors.affiliation: Tepecik Teaching and Research Hospital, Izmir, Turkey.
authors.forename: Cemil
authors.initials: C
authors.lastname: Kocyigit
authors.affiliation: Tepecik Training and Research Hospital, Izmir, Turkey.
authors.forename: Nejat
authors.initials: N
authors.lastname: Aksu
authors.affiliation: Tepecik Teaching and Research Hospital, Izmir, Turkey.
authors.forename: Ali Rahmi
authors.initials: AR
authors.lastname: Bakiler
mesh_terms: D003430:Cross-Sectional Studies; D004322:Drainage / Q000379:methods; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011446:Prospective Studies; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D016482:Urinalysis / Q000379:methods*; D014546:Urinary Catheterization / Q000379:methods* / Q000706:statistics & numerical data; D014552:Urinary Tract Infections / Q000175:diagnosis* / Q000652:urine*
keywords: contamination; infants; sampling methods; suprapubic aspiration; urine culture