Reliability of Symptoms and Dipstick for Postoperative Catheter-Associated Urinary Tract Infections.

Published online

Journal Article

OBJECTIVE: The aim of the study was to determine the diagnostic reliability of patient symptoms and urine dipstick results, including blood, leukocyte esterase, and nitrite, in diagnosing postoperative catheter-associated urinary tract infections (CAUTIs) after gynecologic surgery. METHODS: A prospective cohort study of patients undergoing gynecologic surgeries who required short-term (>24 hours) postoperative catheterization was conducted. Patients completed a questionnaire regarding symptoms. Urine dipstick analysis was completed on catheterized urine samples and urine was sent for culture for all patients. Positive likelihood ratios (LRs) were used to examine diagnostic reliability of patient symptoms and urine dipstick results in diagnosing postoperative CAUTIs. RESULTS: Fifty-seven patients with postoperative short-term indwelling catheterization were recruited, 25 (44%) of whom had CAUTIs diagnosed by urine culture at recruitment and 32 (56%) of whom did not have CAUTIs. Urine dipstick parameters were found to successfully diagnose CAUTIs, with positive LRs of 1.44 (95% confidence interval [CI], 1.04-1.99), 6.77 (95% CI, 2.23-20.52), and 9.47 (95% CI, 1.23-72.69) for blood, leukocyte esterase, and nitrite, respectively. The combination of leukocyte esterase and nitrite yielded a positive LR of 9.48 (95% CI, 2.62-34.25). Individual symptoms, alone or in combination, did not successfully diagnose positive urine culture (positive LRs <1.8). CONCLUSIONS: Urine dipstick parameters are reliable diagnostic tests for diagnosing postoperative CAUTIs after gynecologic surgery, particularly when in combination. Patient symptoms have little diagnostic value for positive urine cultures in catheterized patients after gynecologic surgery.

Full Text

Duke Authors

Cited Authors

  • Holthaus, EA; Ferrando, CA; Jelovsek, JE; Barber, MD

Published Date

  • April 30, 2019

Published In

PubMed ID

  • 31045619

Pubmed Central ID

  • 31045619

Electronic International Standard Serial Number (EISSN)

  • 2154-4212

Digital Object Identifier (DOI)

  • 10.1097/SPV.0000000000000739

Language

  • eng

Conference Location

  • United States