PURPOSE: We analyzed the influence of treatment response on the risk of acute urinary retention and benign prostatic hyperplasia related surgery in 5,792 men complaining of lower urinary tract symptoms who were treated for 6 months with the selective alpha1-blocker alfuzosin at 10 mg once daily. MATERIALS AND METHODS: The influence of dynamic variables (International Prostate Symptom Score change and bother during treatment) and baseline variables (patient age, prior acute urinary retention managed conservatively, prostate specific antigen, International Prostate Symptom Score and bother severity) on the risk of acute urinary retention and benign prostatic hyperplasia related surgery was estimated using the Kaplan-Meier method and log rank test. The associated HR and 95% CI were calculated using Cox proportional hazard models. RESULTS: During alfuzosin treatment International Prostate Symptom Score improved by 3 or greater and greater than 6 points in 74.8% and 50.3% of men, respectively. In this unselected population, including 3.8% with prior unoperated acute urinary retention, the rate of acute urinary retention and benign prostatic hyperplasia related surgery events during treatment was low (0.5% and 1.1%, respectively). Men with stable or worsening International Prostate Symptom Score were at increased risk for acute urinary retention or surgery (HR 3.75, 95% CI 1.58 to 8.89, p = 0.003 and HR 4.71, 95% CI 2.69 to 8.24, p <0.001, respectively). Prior acute urinary retention was a strong predictor of acute urinary retention relapse and surgery (HR 10.35, 95% CI 4.29 to 26.08, p <0.001 and HR 3.57, 95% CI 1.59 to 7.98, p = 0.002, respectively). Bother score greater than 3 during treatment was the strongest predictor of surgery (HR 7.61, 95% CI 4.16 to 13.93, p <0.001). Prostate specific antigen had much less predictive value. CONCLUSIONS: This 6-month real life practice study shows that alfuzosin is associated with a low incidence of acute urinary retention and benign prostatic hyperplasia related surgery. It also suggests that responder status is the most important predictor of acute urinary retention and benign prostatic hyperplasia related surgery. Thus, first line treatment with alfuzosin may help select patients at risk for benign prostatic hyperplasia progression to optimize treatment.
PURPOSE: We analyzed the influence of treatment response on the risk of acute urinary retention and benign prostatic hyperplasia related surgery in 5,792 men complaining of lower urinary tract symptoms who were treated for 6 months with the selective alpha1-blocker alfuzosin at 10 mg once daily. MATERIALS AND METHODS: The influence of dynamic variables (International Prostate Symptom Score change and bother during treatment) and baseline variables (patient age, prior acute urinary retention managed conservatively, prostate specific antigen, International Prostate Symptom Score and bother severity) on the risk of acute urinary retention and benign prostatic hyperplasia related surgery was estimated using the Kaplan-Meier method and log rank test. The associated HR and 95% CI were calculated using Cox proportional hazard models. RESULTS: During alfuzosin treatment International Prostate Symptom Score improved by 3 or greater and greater than 6 points in 74.8% and 50.3% of men, respectively. In this unselected population, including 3.8% with prior unoperated acute urinary retention, the rate of acute urinary retention and benign prostatic hyperplasia related surgery events during treatment was low (0.5% and 1.1%, respectively). Men with stable or worsening International Prostate Symptom Score were at increased risk for acute urinary retention or surgery (HR 3.75, 95% CI 1.58 to 8.89, p = 0.003 and HR 4.71, 95% CI 2.69 to 8.24, p <0.001, respectively). Prior acute urinary retention was a strong predictor of acute urinary retention relapse and surgery (HR 10.35, 95% CI 4.29 to 26.08, p <0.001 and HR 3.57, 95% CI 1.59 to 7.98, p = 0.002, respectively). Bother score greater than 3 during treatment was the strongest predictor of surgery (HR 7.61, 95% CI 4.16 to 13.93, p <0.001). Prostate specific antigen had much less predictive value. CONCLUSIONS: This 6-month real life practice study shows that alfuzosin is associated with a low incidence of acute urinary retention and benign prostatic hyperplasia related surgery. It also suggests that responder status is the most important predictor of acute urinary retention and benign prostatic hyperplasia related surgery. Thus, first line treatment with alfuzosin may help select patients at risk for benign prostatic hyperplasia progression to optimize treatment.
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