Clean-Catch Urine Specimen More Likely to Be Contaminated After Vaginal Surgery for Pelvic Organ Prolapse

Author:

O’Meara Amanda1,Abalyan Victoria1,O’Sullivan David M.2,Tunitsky-Bitton Elena1

Affiliation:

1. Division of Female Pelvic Medicine and Reconstructive Surgery, Hartford Hospital

2. Department of Research Administration, Hartford HealthCare, Hartford, CT

Abstract

Importance Accurate diagnosis of urinary tract infection after pelvic organ prolapse (POP) surgery is essential to postoperative care. Objective Our aim was to determine the agreement between the urinalysis of a clean-catch versus a straight catheter urine specimen in women who underwent vaginal surgery for POP. Study Design This was a cross-sectional study evaluating patients after vaginal surgery for POP. A clean-catch and straight catheter urine specimen were collected at routine postoperative appointments. Routine urinalyses and urine cultures were performed for all patients. A urine culture yielding mixed urogenital flora (which includes Lactobacillus species), coagulase-negative staphylococci, and Streptococcus species was considered a contaminated result. The agreement between the characteristics of urinalysis obtained via the clean catch versus the straight catheter at 3 weeks postoperatively was evaluated using weighted κ statistic. Results Fifty-nine participants enrolled. The agreement between the characteristics of urinalysis obtained via the clean catch versus the straight catheter was poor (κ = 0.018). The urine culture was more likely to be contaminated from the clean-catch urine specimen than from the straight catheter urine specimen (53.7% vs 23.1%). The positive and negative predictive values of leukocyte esterase on clean catch were 22.6% and 100%, respectively. Conclusions Diagnosing urinary tract infection based on contaminated urinalyses may lead to antibiotic overuse and misdiagnosis of postoperative complications. Our results can help educate health care partners and discourage the use of clean-catch urine specimens when assessing women who have recently undergone vaginal surgery.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Urology,Obstetrics and Gynecology,Surgery

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