[Association with relative nocturnal polyuria using BNP (brain natriuretic peptide) in eldely patients with nocturia].

Objective: In addition to overactive bladder (OAB) and sleep disorders (disturbance of additional sleep induction), nocturnal polyuria has been reported as an etiology of nocturia in elderly people. To investigate the influence of heart function on nocturnal polyuria in elderly people, we examined the association with nocturnal polyuria using brain natoriuretic peptide (BNP), which are useful for evaluating the prognosis of heart failure.

Patients And Methods: The patients were 128 patients (92 males, 36 females) who were treated for nocturia in Kohsei general hospital and other relative hospital between October 2002 and September 2005.