CPAP Use Might Reduce Nighttime Urination in Sleep Apnea Patients
People with obstructive sleep apnea often wake at night to urinate because apneas create negative chest pressure that stretches the heart atria and triggers atrial natriuretic peptide (ANP), along with other hormonal changes; the resulting nocturnal diuresis and brief arousals can feel like a full bladder. Effective treatment of OSA (e.g., CPAP) can reduce or stop these nocturnal trips. The column also notes that asymptomatic urinary infections in a 97-year-old generally shouldn’t be treated and routine testing without symptoms is not recommended unless specific exceptions apply.
