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Symptom change after discontinuation of successful antimuscarinic treatment in patients with overactive bladder symptoms: a randomised, multicentre trial.
MedLine Citation:
PMID:  21849011     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Aims:  Efficacy of antimuscarinic therapy for overactive bladder (OAB) has been demonstrated; however, the durability of its effects is unknown. The study was conducted to evaluate symptom change and retreatment rate after discontinuation of antimuscarinic therapy. Also, we tried to find risk factors for retreatment. Methods:  This was a prospective, randomised, open-label, multicentre trial at four university hospitals. Women who had OAB symptoms for ≥ 6 months and who showed successful response to 1 month of Tolterodine 4 mg medication were randomly assigned to one of three groups: (A) discontinue medication, (B) 2-month additional medication and (C) 5-month additional medication. After completion of the 1-, 3- or 6-month treatment, patients stopped the medication and were followed up for additional 3 months to assess symptom relapse and retreatment rates. Risk factors for retreatment were evaluated. Results:  Of a total of 558 patients who took the study medication, 173 were randomised and 108 (A: 40, B: 40, C: 28) were included in the analysis. At the end of the treatment, the mean micturition frequency was decreased to 8.3/24 h from 11.7/24 h, and the mean urgency episode was decreased to 2.2/24 h from 8.0/24 h. Three months after discontinuation, the micturition frequency and the urgency episode were increased to 9.1/24 and 4.4/24 h respectively. Sixty five per cent of patients requested retreatment, and 62% experienced symptom relapse. Baseline health-related quality of life was the only independent risk factor for retreatment. Discussion and conclusion:  Discontinuation of antimuscarinic therapy resulted in high symptom relapse and retreatment rates regardless of treatment duration. The results provide new information on the durability of the efficacy of antimuscarinics, and may improve treatment efficacy by promoting the medication persistence of antimuscarinics in OAB patients.
Authors:
Y-S Lee; M-S Choo; J Y Lee; S-J Oh; K-S Lee
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of clinical practice     Volume:  65     ISSN:  1742-1241     ISO Abbreviation:  Int. J. Clin. Pract.     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-08-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9712381     Medline TA:  Int J Clin Pract     Country:  England    
Other Details:
Languages:  eng     Pagination:  997-1004     Citation Subset:  IM    
Copyright Information:
© 2011 Blackwell Publishing Ltd.
Affiliation:
Department of Urology, Sungkyunkwan University School of Medicine, Samsung Changwon Hospital, Changwon, Korea Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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