What are the possible complications of bladder pressure assessment?

Updated: Jan 16, 2020
  • Author: Pamela I Ellsworth, MD; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Urinary tract infection may occur after urodynamic evaluation. A prospective study evaluating pre-urodynamic urine cultures and urine cultures obtained on the third day after a urodynamic study demonstrated that, of the 35 women involved, 23 (66.7%) showed no evidence of a urinary tract infection before or after urodynamic evaluation. Of the remaining 12 women, 6 had bacteriuria in the post-cytometry urine sample, 2 women had a urinary tract infection in the pre- and post-cystometry urine samples, 3 women had pyuria with mixed organisms and repeat urine culture was negative for a urinary tract infection, and one woman (2.9%) developed a urinary tract infection following the urodynamic study. [19]

Bombieri et al performed a prospective study evaluating the incidence and natural history of urinary tract infections in 214 women undergoing urodynamic evaluation and noted a bacteriuria incidence of 7.9% after urodynamics. [13] Of the 17 women with bacteriuria, it was found to be transient in 4, persistent in 9, and late-developing in 4. Only one of the 17 women had symptoms. Advanced age was the only variable associated with bacteriuria after urodynamic evaluation. Thirty-four percent (34%) of the women undergoing urodynamic evaluation had irritative symptoms after the study.

Peschers et al performed a single blind prospective randomized study comparing a single postprocedure dose of cotrimoxazole to placebo after urodynamics. [16] Seventy women were prescreened to rule out a urinary tract infection and then underwent multichannel urodynamics with a single dose of cotrimoxazole or placebo after the procedure. Two women in the treatment group (2 of 37, 5.9%) and 2 in the placebo group (2 of 33, 6.1%) developed a urinary tract infection after the urodynamics. Unfortunately, the power of the sample size was too small to draw conclusions as to the efficacy of prophylaxis.

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