Int Neurourol J.  2019 Jun;23(2):161-168. 10.5213/inj.1938026.013.

Effect of Nocturnal Hypoxia on Nocturia in Patients With Obstructive Sleep Apnea

Affiliations
  • 1Department of Urology, Hanyang University College of Medicine, Seoul, Korea. ytkimuro@hanyang.ac.kr
  • 2Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University College of Medicine, Seoul, Korea. shcho@hanyang.ac.kr

Abstract

PURPOSE
To identify the association between nocturia and obstructive sleep apnea (OSA), we compared results of polysomnography (PSG) with the presence or absence of nocturia in patients with suspected OSA.
METHODS
Patients underwent PSG for suspected OSA. The International Prostate Symptom Score and quality of life (IPSS/QoL) questionnaire was evaluated to assess voiding symptoms that may affect sleep quality. The results of PSG were compared between patient groups with or without nocturia.
RESULTS
In logistic regression analysis, age (odds ratio [OR], 1.052; P=0.004), diabetes mellitus (OR, 6.675; P<0.001), mean Oâ‚‚ saturation (OR, 0.650; P=0.017), oxygen desaturation index (ODI) 3 (OR, 1.193; P=0.010), and ODI4 (OR, 1.136; P=0.014) affected nocturia independently among the OSA-suspected patients.
CONCLUSIONS
Hypoxia caused by OSA affects the incidence of nocturia. Less desaturated OSA patients with nocturia may require more urological evaluation and treatment for nocturia even after the correction of OSA.

Keyword

Nocturia; Apnea; Sleep; Hypoxia
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