Abstract
Objective
Conclusive data comparing treatment efficacy of OAB pharmacotherapy in normal weight
versus obese patients are not available. Obesity represents a risk factor for OAB/LUTS.
We hypothesized that the effect of treatment with mirabegron might be diminished in
obese patients.
Study design
One hundred sixty nine women were prescribed mirabegron, 50 mg/day. Subjective and objective parameters were compared prior to and following three
months of treatment. The study population was stratified into three groups according
to a patients’ BMI (A-normal weight, B-overweight, C-obese). We compared the change
in parameters before and after treatment within each group. Subsequently the differences
between groups were correlated. The same analysis was performed separately in patients
who failed anticholinergic therapy (n = 85). A paired t-test was used to compare the parameters before and after the procedure within groups,
and a two-sample t-test was applied to conduct a comparison between groups. A p value of <0.05 was considered statistically significant.
Results
Significant improvement (p < 0.001) within all groups was observed in all parameters, with an exception in the
number of severe urgency episodes per 24 h (p = 0.291) in Group B. We did not observe any statistically significant difference between
groups A, B and C. The same trend has been observed in subgroup of patients, who did
not respond previous antimuscarinic treatment.
Conclusions
This study provides evidence in support of previously documented data indicating good
efficacy of mirabegron in the treatment of OAB. The data obtained do not confirm our
hypothesis that the body weight influences the treatment outcome of mirabegron.
Keywords
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Article info
Publication history
Published online: November 24, 2015
Accepted:
November 18,
2015
Received in revised form:
September 21,
2015
Received:
June 22,
2015
Identification
Copyright
© 2015 Elsevier Ireland Ltd. Published by Elsevier Inc. All rights reserved.