The reproducibility of urodynamic findings in healthy female volunteers: results of repeated studies in the same setting and after short-term follow-up

Neurourology and Urodynamics
Amit GuptaGary E Lemack

Abstract

To assess the immediate (same testing period) and short-term (within 6 months) repeatability of urodynamic (UD) testing in asymptomatic healthy female volunteers. Twenty asymptomatic women with a mean age of 41.8 years (30-55) agreed to undergo a UD assessment which consisted of noninvasive uroflowmetry, post-void residual (PVR) measurement, medium-fill cystometry, and pressure flow study with perineal surface electromyographic (EMG) electrodes. The UDS evaluation was repeated immediately without removing the catheters (a two-fill and void study). Sixteen women returned for an identical UD assessment 1-5 months later. Immediate and short-term repeatability of UD parameters was assessed by calculating the coefficient of repeatability (COR). The repeatability of certain parameters of immediate UD testing could not be calculated since there was an apparent influence of the first test on the second (i.e., an apparent accommodation noted in bladder filling volumes). Other immediate UD values (maximum flow, detrusor pressure at maximum flow, voided volume) had high COR values, as did all UD values on short-term testing, indicating relatively poor repeatability. Picking the 'best' pressure flow value (highest flow rate with accompanyi...Continue Reading

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