Prognosis
Obstructive uropathy can result in permanent renal damage, but the majority of patients recover completely if the obstruction is relieved promptly.[21][53] Although benign prostatic hyperplasia (BPH) is a common cause of obstructive uropathy, most patients with BPH do not go on to develop obstruction. In a study of over 3000 men, 18 (2.4%) of the 737 men in the placebo group went on to develop acute urinary retention with a mean follow-up of 4.5 years. No men in the trial went on to develop renal insufficiency due to BPH.[13]
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