Intravesical Prostatic Protrusion as a Predicting Factor for the Adverse Clinical Outcome in Patients With Symptomatic Benign Prostatic Enlargement Treated With Dutasteride.

Abstract:

OBJECTIVE:To evaluate the role of intravesical prostatic protrusion (IPP) as a predictive factor for adverse clinical outcomes in patients treated with dutasteride for lower urinary tract symptoms secondary to benign prostatic enlargement (BPE). METHODS:In total, 111 patients treated with dutasteride for symptomatic BPE were analyzed. Stepwise multivariate logistic regression was applied to evaluate predictors for acute urinary retention (AUR) or benign prostatic hyperplasia (BPH)-related surgery. We applied an IPP cutoff value of 10 mm. The clinical variables were assessed using univariate analysis. RESULTS:Of 111 patients, 27 (24.3%) developed AUR or required surgical intervention. On multivariate analysis, IPP remained as the independent predictor for AUR and need for BPH-related surgery (odds ratio, 1.27; P < .001). Both international prostate symptom score and maximum urinary flow rate significantly improved in patients with low IPP (P  =  .03 and P  <  .001, respectively), but not in those with high IPP. No significant reduction was found in the degree of IPP despite the significant reduction in prostate volume after dutasteride treatment (P  =  .84 and P  <  .001, respectively). The 3-year cumulative incidence of AUR or BPH-related surgery in the low IPP group vs the high IPP group was 9.9% vs 71.5%, respectively (P  <  .001). CONCLUSION:High IPP is associated with a higher risk of treatment resistance, AUR, or the need for prostatic surgery in patients receiving dutasteride treatment for symptomatic BPE. Dutasteride might not be effective for IPP reduction.

journal_name

Urology

journal_title

Urology

authors

Yoshida T,Kinoshita H,Yoshida K,Mishima T,Taniguchi H,Yanishi M,Komai Y,Yasuda K,Sugi M,Matsuda T

doi

10.1016/j.urology.2016.01.009

subject

Has Abstract

pub_date

2016-05-01 00:00:00

pages

154-7

eissn

0090-4295

issn

1527-9995

pii

S0090-4295(16)00062-5

journal_volume

91

pub_type

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