Comparison of Easy Urodynamic Study and Standard Urodynamic Study in Measuring Intravesical Pressure

Abstract

BACKGROUND: Urodynamics (UDS) is the gold standard for evaluating lower urinary tract dysfunction and guiding treatment in neurogenic bladder patients to maintain proper pressure; however, standard UDS is often time-consuming and expensive. We hypothesized that “easy urodynamics” could be used to accurately measure bladder pressure (Pves) and identify patients at risk of upper tract deterioration who may benefit from early standard UDS re-evaluation.

OBJECTIVES: To assess the correlation between easy UDS and standard UDS measurements and identify the cut-off value to undergo early standard UDS.

METHODS: Thirty patients were recruited for Easy UDS in order to record Pves, intraabdominal pressure (Pabd), detrusor pressure (Pdet), maximal cystometric capacity, and Pves by easy UDS (E Pves). The descriptive study, correlation value, and significance of the data were analyzed.

RESULTS: A total of 30 patients (14 males, 16 females) with a median age of 52.5 years. E Pves were correlated with Pves (p=0.41). There was no significant relationship between body mass index (BMI) and Pabd (p=0.57). E Pves cut-off ≥34 cmH₂O were associated with the risk of upper tract deterioration (Pdet ≥30 cmH₂O), with a sensitivity of 100% and a specificity of 91.3%.

CONCLUSIONS: Easy UDS could be used to measure Pves similarly to standard UDS, and the E Pves cut-off ≥34 cmH₂O can help identify patients at risk of upper tract deterioration (Pdet ≥30 cmH₂O) who may benefit from early standard UDS re-evaluation and closer follow-up.

Thaiclinicaltrials.org number, TCTR20220515004