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Schofield E, Taylor N, Drake MJ. The association of lower urinary tract symptoms with schizophrenia and its treatments: A narrative review. Neurourol Urodyn 2024; 43:114-125. [PMID: 37916430 DOI: 10.1002/nau.25320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/14/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND A higher incidence of lower urinary tract symptoms (LUTS) in people with schizophrenia compared to the general population is often suggested. However, it is not clear whether this is a genuine association, and whether it is a direct result of schizophrenia itself, or a side-effect of certain antipsychotics. METHODS We undertook a narrative review evaluating how the published literature reports the relationship between LUTS and schizophrenia and its treatments. We searched Embase, Ovid Emcare, and Ovid MEDLINE(R) ALL to August 2022, limited to the English language. We selected the following search terms: schizophrenia, schizophrenic, LUTS, overactive bladder, urinary urgency, urinary incontinence, overactive bladder, enuresis, nocturnal enuresis, and voiding dysregulation. We identified seven domains for assessment in advance of commencing the review. These were the categorization, description, and treatment status of schizophrenia; evaluation of LUTS; categorization of LUTS confounders; recapturing of the disease states of both schizophrenia and LUTS after therapies; assessment of the association between LUTS and schizophrenia and/or antipsychotics. RESULTS The association between LUTS and schizophrenia was poorly described. The evidence was low quality and focused predominantly on urinary incontinence as an antipsychotic side effect, neglecting other LUTS. The status of schizophrenia was often incompletely characterized, and no papers made use of a bladder diary or LUTS-specific questionnaires to assess symptoms. No papers collected information about LUTS in patients not on antipsychotics, nor did any thoroughly evaluate the influence of confounding variables. Despite the tendency of symptoms and severity of both conditions to fluctuate over time, no studies fully assessed the status of both schizophrenia and LUTS at baseline, therapy initiation, and follow-up. CONCLUSIONS It is not possible to state whether there is an association between LUTS and schizophrenia or its treatments. This review highlights the need to improve research and clinical management of the urinary tract in schizophrenia, with meticulously designed longitudinal studies.
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Affiliation(s)
| | | | - Marcus J Drake
- Department of Surgery and Cancer, Imperial College, London, UK
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Tanzer T, Warren N, McMahon L, Barras M, Kisely S, Brooks E, Wong E, Siskind D. Treatment strategies for clozapine-induced nocturnal enuresis and urinary incontinence: a systematic review. CNS Spectr 2022; 28:1-12. [PMID: 35086595 DOI: 10.1017/s1092852922000050] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Clozapine is the most effective medication for treatment-refractory schizophrenia but is associated with significant adverse drug reactions, including nocturnal enuresis and urinary incontinence. This side effect can be burdensome and lead to medication nonadherence and psychotic relapse. Evidence to guide treatment of clozapine-induced nocturnal enuresis and urinary incontinence is sparse. We therefore aimed to synthesize the evidence base to guide management for clinicians, patients, and their carers. METHODS We systematically searched PubMed, Embase, PsycInfo, CINAHL, and the Cochrane Trial Registry databases from inception to May 2021 for publications on management of clozapine-induced nocturnal enuresis and urinary incontinence using a PROSPERO preregistered search strategy. RESULTS We identified 22 case reports and case series describing 74 patients. Interventions included clozapine dose reduction, nonpharmacological treatment, and pharmacological treatments. Among pharmacological treatments, desmopressin, oxybutynin, trihexyphenidyl, tolterodine, imipramine, amitriptyline, ephedrine, pseudoephedrine, aripiprazole, and verapamil were associated with complete resolution of nocturnal enuresis and urinary incontinence. Balancing evidence for effectiveness against risk of adverse effects, we developed a management framework for clozapine-induced nocturnal enuresis and urinary incontinence. CONCLUSIONS Following assessment of urological, psychiatric, pharmacological, and common comorbid medical issues, first-line treatments should be nonpharmacological, including bathroom alarms, voiding before bedtime, and nocturnal fluid restriction. If these interventions do not provide adequate relief, aripiprazole should be trialed. Desmopressin may be considered for severe refractory cases, but monitoring for hyponatremia is essential.
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Affiliation(s)
- Timothy Tanzer
- Department of Pharmacy, Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
- School of Pharmacy, University of Queensland, Brisbane, Queensland, Australia
| | - Nicola Warren
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
- Metro South Addiction and Mental Health Service, Brisbane, Queensland, Australia
| | - Laura McMahon
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Michael Barras
- Department of Pharmacy, Princess Alexandra Hospital, Brisbane, Queensland, Australia
- School of Pharmacy, University of Queensland, Brisbane, Queensland, Australia
| | - Steve Kisely
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
- Metro South Addiction and Mental Health Service, Brisbane, Queensland, Australia
- Department of Psychiatry, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Community Health and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Emily Brooks
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
- Department of Diabetes and Endocrinology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Emily Wong
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Dan Siskind
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
- Metro South Addiction and Mental Health Service, Brisbane, Queensland, Australia
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