Is Obstructive Sleep Apnea to blame for Nocturnal Polyuria?

Auping M1, Kuipers A1, Witte L2

1. Dept. of Pulmonology, Isala Clinics, Zwolle, the Netherlands, 2. Dept. of Urology, Isala Clinics, Zwolle, the Netherlands

KEYWORDS: Nocturia, Clinical Trial, Prospective Study, Voiding Diary

Nocturia is a common urological problem with a high prevalence (up to 60%) especially in elderly patients (1). The underlying causes for nocturia are various, such as conditions causing sleeping disorders, bladder storage problems, and nocturnal polyuria. Patients with nocturnal polyuria have an increased production of urine during nighttime (i.e. one third or more of the total volume of urine produced in 24-hours) (2). Nocturnal polyuria may be present in patients with obstructive sleep apnea (OSA) and treatment with continuous positive airway pressure (CPAP) reduces nighttime frequency and nocturnal voided volume in patients with OSA (3).
In this study, we examined the amount of patients with nocturnal polyuria that suffer from OSA.
Subsequently, we offered patients with confirmed OSA treatment with CPAP, and analyzed the effect on episodes of nocturia and the nocturnal polyuria index (NPi= voided volume during night time/voided volume in 24 hours*100).

Read the full abstract text here: https://www.ics.org/2020/abstract/82
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