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Neurourol Urodyn. 2014 Jun;33(5):516-23. doi: 10.1002/nau.22441. Epub 2013 Jun 11.

Time-dependent changes and gender differences in urinary dysfunction in patients with multiple system atrophy.

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1
Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.

Abstract

AIMS:

Because time-dependent changes and gender differences in urinary dysfunction in patients with multiple system atrophy (MSA) are yet unknown, we aimed to determine these parameters through a combination of urodynamic examination and the results of a questionnaire on urinary symptoms.

METHODS:

We retrospectively reviewed 66 patients with MSA who responded to a urinary symptoms questionnaire and underwent urodynamic examination more than twice. The participants' mean age was 62 years and mean disease duration at the first urodynamic examination was 3.2 years. Mean duration between the first and second urodynamic examination was 441 days.

RESULTS:

With regard to overall (both genders) time-dependent change, none of the urinary symptoms showed significant differences. In the urodynamic examination there were significant differences in reduced urine flow, increased post-void residuals, and decreased detrusor contractility at the second examination. With regard to gender differences, at the first examination, night-time urinary frequency, and voiding symptoms were significantly more severe in male than in female patients; however, at the second examination, except for urinary urgency, gender differences were not observed for any other symptoms. In urodynamic examination, the degree of detrusor contraction was significantly less in male patients at the first examination. However, no significant differences were found in urodynamic examination at the second examination.

CONCLUSIONS:

The present study indicates that voiding dysfunction progressed without significant worsening of voiding symptoms. In addition, gender differences are important in evaluating urinary dysfunction being basically less severe in female than in male patients, at least during the early stage. Neurourol. Urodynam. 33:516-523, 2014. © 2013 Wiley Periodicals, Inc.

KEYWORDS:

gender differences; multiple system atrophy; time-dependent changes; urinary dysfunction; urodynamic study

PMID:
23754466
DOI:
10.1002/nau.22441
[Indexed for MEDLINE]
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