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  • Title: Nocturia: an Austrian study on the multifactorial etiology of this symptom.
    Author: Klingler HC, Heidler H, Madersbacher H, Primus G.
    Journal: Neurourol Urodyn; 2009; 28(5):427-31. PubMed ID: 19229953.
    Abstract:
    AIMS: To identify the different factors contributing to nocturia in a clinical setting. PATIENTS AND METHODS: Three hundred twenty-four patients (133 women, 191 men; mean age 63 years) were entered into this multi-institutional study. When presenting with nocturia we obtained detailed medical history and performed urine analysis, post-void residual volume and renal ultrasonography. Bothersome score and quality of life were evaluated using visual analogue scale and Kings' Health Questionnaire (KHQ), respectively. Patients were asked to complete a 48-hr voiding diary (VD). Nocturia and its associated problems were evaluated using KHQ and VD in conjunction with concurrent health variables. RESULTS: Mean nocturia was 2.8 in men versus in 3.1 women. Fifty percent of patients were aged >65 years, 60% had daytime lower urinary tract symptoms (LUTS) as well as nocturia, 33% had cardiac pathologies and 7% had peripheral edema. Principal causes for nocturia were global polyuria in 17%, nocturnal polyuria (NP) in 33% and reduced functional capacity <250 ml in 16.2%; 21.2% had mixed forms of NP and reduced bladder capacity and 12.6% suffered from other causes. Mean bothersome score was higher in women (P < 0.001) and in patients with NP (P = 0.012). Quality of life was significantly lower in women (P = 0.001), in patients aged >65 years (P = 0.029) and in those with reduced functional capacity (P < 0.001). Mean voided 24-hr urine was higher in women (P = 0.033) and in patients aged <65 years (P = 0.019). CONCLUSIONS: Nocturia had a high impact on bothersome score, strong associations with poor health and other LUTS. NP was the predominant cause of nocturia. Neurourol. Urodynam. 28:427-431, 2009. (c) 2009 Wiley-Liss, Inc.
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