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Int Neurourol J > Volume 7(2); 2003 > Article
Clinical Investigation
Journal of the Korean Continence Society 2003;7(2): 112-117.
DOI: https://doi.org/10.5213/jkcs.2003.7.2.112   
Correlation of Valsalva Leak Point Pressure and Maximum Urethra Closure Pressure in Patients with Stress Urinary Incontinence.
Hong Seok Kim, Young Beom Jeong, Jong Kwan Park, Young Kyung Park
Department of Urology, Chonbuk National University Medical School, Jeonju, Korea. ybjeong@moak.chonbuk.ac.kr
ABSTRACT
PURPOSE
The valsalva leak point pressure (VLPP), a quantitative measure of sphincteric function, is used widely to diagnose intrinsic sphincter deficiency (ISD). This study was to evaluate the correlation between VLPP and maximum urethra closure pressure (MUCP) in patients with stress urinary incontinence.
MATERIALS AND METHODS
We divided the patients into two categories: 60 patients affected by ISD as they had stress incontinence; 80 patients suffering from stress incontinence without ISD. The presence/absence of ISD was considered the dependent variable and was correlated against the following independent variables: age, vaginal deliveries, menopause, previous urogynecological surgery, VLPP, MUCP, and functional urethral length (FUL). This two groups were compared VLPP with MUCP to evlauate their correlation.
RESULTS
The statistical analysis showed close correlation between ISD and age (p=0.045), urogynecological surgery (p=0.013), VLPP (p=0.000), MUCP (p=0.000), FUL (p=0.000). There was statistically significant relationship between VLPP and MUCP (p=0.01), however a correlation coefficient of 0.303 demonstrated poor clinical relationship. When the cut-off value of MUCP were 20, 30, 40 cmH2O, there was no the diagnostic value of ISD.
CONCLUSION
The MUCP has statistically significant relationship with VLPP but, low correlation coefficient demonstrated poor clinical relationship. Therefore, it is not clinically useful to evaluate urethral sphincter function.
Keywords: VLPP; MUCP; Stress incontinence
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Official Journal of Korean Continence Society & ESSIC (International Society for the Study of BPS) & Korean Society of Urological Research & The Korean Children’s Continence and Enuresis Society & The Korean Association of Urogenital Tract Infection and Inflammation & Korean Society of Geriatric Urological Care
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