Role of Transrectal Doppler Ultrasound in Assessing Bladder Outlet Obstruction

Shady Emara,

Published on: 2019-11-25

Abstract

Objective: Assessing the role of Transrectal Doppler Ultrasound in estimating degree of bladder outlet obstruction, in patients with benign prostatic hyperplasia.
Methods: Fifty-two patients aged from 55 to 70 with the clinical diagnosis of Benign Prostatic Hyperplasia (BPH) were recruited. Patients with cancer prostate, neurogenic bladder, previous lower urinary tract intervention, were excluded. Urologic evaluation included, thorough history, International Prostate Symptom Score (IPSS), neurologic examination, digital rectal examination, urine analysis, PSA, uroflowmetry, transrectal doppler ultrasonography. The correlations were analysed between the resistive index of prostatic capsular artery, and maximum flow rate (Qmax).
Results: A significant increase in RI correlated to decrease in Qmax (r=0.398, p<0.016) was found. Also there was significant increase in RI correlated to increase in IPSS (r=0.535, p<0.001). As regards Qmax, there was significant decrease in Qmax correlated to increase in IPSS (r=-0.654, p<0.001).
Conclusion: Transrectal Doppler can be used as a tool to measure degree of bladder outlet obstruction, through measuring resistive index of prostatic capsular artery.

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