Refractory overactive bladder: a common problem?

Abstract

Introduction and hypothesis: Unsatisfactory treatment outcome sometimes is described as frequently occurring in patients treated with first-line therapy for overactive bladder (OAB). The present article reviews the different circumstances which may result in failure to respond to lifestyle interventions, behavioral therapy, and/or antimuscarinic treatment.

Methods: An extensive literature search was conducted to identify relevant articles on pathophysiological, clinical, and pharmacological aspects of refractory OAB.

Results: Missing definition, unrealistic individual expectation of treatment outcomes, lack of communication between physician and patient as well as pathophysiological and pharmacological processes were identified as relevant for failure to respond to first-line OAB treatment. Increase of patient's motivation to adhere to the prescribed treatment, critical examination of the patient in regard to the initial diagnosis, and individual adjustment of antimuscarinic therapy may be appropriate tools to improve treatment outcome in OAB patients.

Conclusions: Overall, the incidence of refractory OAB seems to be overestimated. There are several approaches to improve therapy results.

Keywords: Antimuscarinic; Pathophysiology; Pharmacology; Refractory OAB; Treatment.

Fig. 1

Different daily doses of trospium chloride immediate release tablets prescribed by German urologists in 9,366 patients with OAB symptoms in medical practices. Pooled data from three non-interventional studies carried out in Germany (data on file, 2014, Dr. R. Pfleger GmbH, Bamberg, Germany)