Prostate Volume, Intravesical Prostatic Protrusion And Bladder-urethra Angle Of Prostate As Predictors Of Acute Urinary Retention In Benign Prostate Hyperplasia

Objective To evaluate the value of prostate volume (PV), intravesical prostatic protrusion (IPP) and bladder-urethra angle (BUA) as predictors of acute urinary retention (AUR) in men with benign prostate hyperhlasia (BPH)Methods 40 BPH patients were divided into 2 groups.22 patients in AUR group had surffered AUR at least one time and 6 cases of hospitalization due to AUR,while the otherl8 patients had never underwent AUR.Patient was supine position,pending when the bladder filling to 200mL measured PV,IPP,BUA by Siemens MRI, and make a relative analysis.Results In the clinical data, the volume of total prostate was (76.72±20.31) mL in group A, (78.61±25.42)mL in group B, the IPP was(1.66±0.57) cm and (1.53±0.54) cm respectively.There was no significance in the PV and IPP between two groups(P> 0.05). There was a statistical significance in the BUA between two groups (P< 0.05).Grouped according to BUA, when BUA is over 45°, there were 16 patients surffered AUR and 2 patients never underwent AUR. The risk of developing AUR is 88.9%.Conclusions BUA is one of the indicators to predict whether BPH patients have the probability of developing AUR. BUA measured by MRI is a simple way to assess AUR in BPH patients.