Correlation of Male Overactive Bladder with Intravesical Prostatic Protrusion

Abstract

PurposeMale overactive bladder (OAB) may be caused by prostatic pathologies such as bladder outlet obstruction (BOO). Intravesical prostatic protrusion (IPP) has been found to correlate with BOO and acute urinary retention. We investigated the interrelation between male OAB symptoms and IPP for estimating anatomical changes to the prostate.Materials and MethodsWe assessed 179 consecutive men aged >40 years who presented with lower urinary tract symptoms. The initial evaluation included International Prostate Symptom Score (IPSS) and quality of life assessments, transrectal ultrasonography (TRUS), uroflowmetry, and postvoid residual urine volume. The degree of IPP was determined by the distance from the tip of the protrusion to the circumference of the bladder at the base of the prostate gland. Patients with IPP <0.5 cm were defined as group A (n=114), and patients having 0.5 cm≤IPP<1 cm were defined as group B (n=38). The others were defined as group C (n=27).ResultsA total of 51 patients complained of urgency in group A, 38 patients in group B, and 27 patients in group C. Likewise, 14 patients had a history of acute urinary retention in group A, 8 patients in group B, and 16 patients in group C. IPP grade had a statistically significant relation with both OAB and a history of acute urinary retention.ConclusionsThe results of our study have shown that male OAB is correlated with IPP. However, larger scale studies are needed to confirm these results.

Impact of Preoperative Magnetic Resonance Imaging Anatomic Features on Urinary Continence Recovery after Laparoscopic Radical Prostatectomy

“…The underlying mechanisms by which IPPL affects urinary continence recovery after LRP remains unclear, but some hypotheses have been proposed. IPPL was initially known as a better predictor of bladder outlet obstruction and overactive bladder compared with prostate volume [15,16]. In our series, patients with intravesical prostatic protrusion had a significant proportion of treatment for LUTS.…”

Effect of Intravesical Prostatic Protrusion on the Characteristics of Lower Urinary Tract Symptom Change after 12‐Week Drug Medication: A Prospective Analysis

“…In the present study, IPP grade was strongly correlated with total IPSS as well as storage subscale score, but was weakly correlated with voiding subscale score. Similarly, Kim and Kim reported that prevalence of male OAB was higher in the IPP group than in the non‐IPP group 2 . These results suggest that IPP might induce storage symptoms by irritating and extending the bladder neck and trigone as well as voiding symptoms by BOO.…”

“…Similarly, Kim and Kim reported that prevalence of male OAB was higher in the IPP group than in the non-IPP group. 2 These results suggest that IPP might induce storage symptoms by irritating and extending the bladder neck and trigone as well as voiding symptoms by BOO.…”

“…Our previous retrospective study showed that IPP was more correlated with IPSS storage subscale score than voiding subscale score 1 . A recent study also reported the association of overactive bladder and IPP 2 …”

“…1 A recent study also reported the association of overactive bladder and IPP. 2 However, to our knowledge, there has been no study about the treatment response after drug medication according to IPP presence. The aim of the present study was to prospectively identify whether IPP is related with the characteristics of voiding symptom improvement after drug treatment in benign prostatic hyperplasia patients.…”