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Rehabilitation Practice and Science

Translated Title

以膀胱超音波掃描神經性膀胱病人餘尿之準確性

Abstract

Estimating the post-voiding residual urine amount is essential for managing patients with neurogenic bladder. Accurate post-voiding residual urine estimation provides guidance for the appropriate frequency of catheter drainage and reduces the rate of urinary tract infection. Although urethral catheterization is the most accurate method of estimating post-voiding residual urine, a bladder scanner-a noninvasive portable ultrasound device-constitutes an alternative method. In this study, we retrospectively reviewarticleed the residual urine amount in patients with neurogenic bladder of different etiologies using a bladder scanner and urethral catheterization. Data for 144 bladder scans and urethral catheterizations in 39 patients were analyzed, revealing that the residual urine measured by both methods was highly significantly correlated (ρ=0.698, p ＜0.001). The data were divided into five groups according to the amount of residual urine measured through urethral catheterization (i.e., ＜150, 150-250, 250-350, 350-450, and ＞450 mL). The generalized estimating equation model showed that the residual urine amount had a robust effect on the error rate (p=0.047) after adjusting for body mass index, age, and sex. The error rate in the group with＜150 mL of residual urine was significantly higher than that in the group with ＞450 mL of residual urine (median: 31.3% vs. 9.0%, p = 0.007). Moreover, the bladder scanner overestimated residual urine in the ＜150 mL group (median: 147.2 mL vs. 100.0 mL, p＜ 0.001). Although the residual urine estimated using a bladder scanner was highly correlated with that measured by urethral catheterization, the bladder scanner significantly overestimated the residual urine volume for patients with ＜150 mL, which might result in unnecessary catheterization. A further prospective study is warranted to reveal the cause of error in bladder scanner estimation for patients with small bladders and to determine whether use of a bladder scanner with image assistance can reduce this error.

Language

Traditional Chinese

First Page

63

Last Page

69

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