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Int Urogynecol J Pelvic Floor Dysfunct. 2005 Jan-Feb;16(1):12-4; discussion 14. Epub 2004 Jul 29.

Do subjective symptoms of obstructive voiding correlate with post-void residual urine volume in women?

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1
Department of Obstetrics, Gynecology, and Reproductive Sciences, St. Boniface General Hospital and University of Manitoba, Winnipeg, Manitoba, Canada.

Abstract

The objective was to determine if symptoms of obstructive voiding correlate with post-void residual urine volume measured by catheterization. A cross-sectional study of 134 consecutive women referred to a tertiary urogynecology clinic was performed. Subjects were interviewed regarding three types of obstructive voiding symptoms: a sensation of incomplete emptying, straining to void, and slow urine stream. Post-void residual urine volume was measured by catheterization as the gold standard. Data for each symptom were analyzed using Cohen's kappa test, sensitivity, specificity, likelihood ratios for a positive of negative test, and positive and negative predictive values. A total of 11 out of 134 patients (8%) had a post-void residual volume greater than 100 ml. Of these 11, 1 had symptoms of incomplete emptying (9%), 1 had symptoms of straining to void (9%), and 2 had symptoms of slow urine stream (18%). Sensitivity, specificity, likelihood ratio for a positive symptom, likelihood ratio for a negative symptom, positive predictive value, negative predictive value, and Cohen's kappa, respectively, were 9%, 80%, 0.47, 1.13, 4%, 91%, and 0.05 for the symptom of incomplete emptying, 9%, 91%, 1.12, 1.0, 8%, 92%, and 0.01 for straining to void, and 18%, 89%, 1.6, 0.92, 13%, 92%, and 0.07 for the symptom of slow urine stream. It was concluded that symptoms of obstructive voiding do not correlate with measured post-void urine volume. In clinically important situations, these symptoms cannot substitute for measurement of post-void residual urine volume.

PMID:
15647960
DOI:
10.1007/s00192-004-1202-4
[Indexed for MEDLINE]

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