Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotension

Background: Nocturia is the most common lower urinary tract symptom (LUTS) in Parkinson’s disease (PD) and impacts sleep and subsequent daytime function. Often nocturia in PD is attributed to overactive bladder, however we explored the contribution of the over-production of urine at night, nocturnal...

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Main Authors: Matthew D Smith, Anisha Cullen, Gabriella E Portlock, Marcus J Drake, Yoav Ben-Shlomo, Emily J Henderson
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Clinical Parkinsonism & Related Disorders
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590112525000386
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author Matthew D Smith
Anisha Cullen
Gabriella E Portlock
Marcus J Drake
Yoav Ben-Shlomo
Emily J Henderson
author_facet Matthew D Smith
Anisha Cullen
Gabriella E Portlock
Marcus J Drake
Yoav Ben-Shlomo
Emily J Henderson
author_sort Matthew D Smith
collection DOAJ
description Background: Nocturia is the most common lower urinary tract symptom (LUTS) in Parkinson’s disease (PD) and impacts sleep and subsequent daytime function. Often nocturia in PD is attributed to overactive bladder, however we explored the contribution of the over-production of urine at night, nocturnal polyuria (NP), as another factor. Objectives: To assess the prevalence and severity of NP in a PD cohort with LUTS and explore associations with autonomic and other patient characteristics. Methods: Sub-study nested within a trial for LUTS in PD. All participants performed 72-hour bladder diaries. Nocturnal polyuria index (NPi) was calculated from diaries and key associations were explored. Results: 62.6 % of participants had NP based on the NPi33 threshold (producing > 33 % urine at night). Increasing NPi was strongly significantly associated with greater nocturia (OR 1.7 per 5 % NPi unit; 1.5–2.0; P < 0.001). A significant association was observed between NPi and orthostatic hypotension (OR 1.2 per 5 % NPi unit increase; 1.0–1.4; P = 0.03) and reported cardiovascular symptoms (coefficient 0.07; 0.03–0.11; P = 0.002). A marked association was seen with severe NP and orthostatic hypotension (OR 4.9; 1.56–15.57; P = 0.006). Conclusion: NP is very common in this PD cohort symptomatic for LUTS, and is closely associated with increasing rate of nocturia. NP is linked to cardiovascular symptoms and autonomic dysfunction, particularly blood pressure lability which may be causal or simply reflect advanced disease state.
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spelling doaj-art-acac4b33b7054fd2945a8382e9ce6b942025-08-20T03:51:58ZengElsevierClinical Parkinsonism & Related Disorders2590-11252025-01-011210033410.1016/j.prdoa.2025.100334Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotensionMatthew D Smith0Anisha Cullen1Gabriella E Portlock2Marcus J Drake3Yoav Ben-Shlomo4Emily J Henderson5Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; Department of Neurology, Southmead Hospital, Bristol, BS10 5NB, UK; Corresponding author at: Canynge Hall, University of Bristol, BS8 2PN, UK.Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UKPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UKImperial College, London, UKPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UKPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; Older People’s Unit, Royal United Hospital, Bath, UKBackground: Nocturia is the most common lower urinary tract symptom (LUTS) in Parkinson’s disease (PD) and impacts sleep and subsequent daytime function. Often nocturia in PD is attributed to overactive bladder, however we explored the contribution of the over-production of urine at night, nocturnal polyuria (NP), as another factor. Objectives: To assess the prevalence and severity of NP in a PD cohort with LUTS and explore associations with autonomic and other patient characteristics. Methods: Sub-study nested within a trial for LUTS in PD. All participants performed 72-hour bladder diaries. Nocturnal polyuria index (NPi) was calculated from diaries and key associations were explored. Results: 62.6 % of participants had NP based on the NPi33 threshold (producing > 33 % urine at night). Increasing NPi was strongly significantly associated with greater nocturia (OR 1.7 per 5 % NPi unit; 1.5–2.0; P < 0.001). A significant association was observed between NPi and orthostatic hypotension (OR 1.2 per 5 % NPi unit increase; 1.0–1.4; P = 0.03) and reported cardiovascular symptoms (coefficient 0.07; 0.03–0.11; P = 0.002). A marked association was seen with severe NP and orthostatic hypotension (OR 4.9; 1.56–15.57; P = 0.006). Conclusion: NP is very common in this PD cohort symptomatic for LUTS, and is closely associated with increasing rate of nocturia. NP is linked to cardiovascular symptoms and autonomic dysfunction, particularly blood pressure lability which may be causal or simply reflect advanced disease state.http://www.sciencedirect.com/science/article/pii/S2590112525000386Parkinson’s diseaseAutonomicBladderUrinaryBlood pressure
spellingShingle Matthew D Smith
Anisha Cullen
Gabriella E Portlock
Marcus J Drake
Yoav Ben-Shlomo
Emily J Henderson
Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotension
Clinical Parkinsonism & Related Disorders
Parkinson’s disease
Autonomic
Bladder
Urinary
Blood pressure
title Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotension
title_full Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotension
title_fullStr Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotension
title_full_unstemmed Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotension
title_short Nocturnal polyuria is common in Parkinson’s and is associated with orthostatic hypotension
title_sort nocturnal polyuria is common in parkinson s and is associated with orthostatic hypotension
topic Parkinson’s disease
Autonomic
Bladder
Urinary
Blood pressure
url http://www.sciencedirect.com/science/article/pii/S2590112525000386
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