Predictive value of resistive index, detrusor wall thickness and ultrasound estimated bladder weight regarding the outcome after transurethral prostatectomy for patients with lower urinary tract symptoms suggestive of benign prostatic obstruction
- 6 January 2012
- journal article
- clinical trial
- Published by Wiley in International Journal of Urology
- Vol. 19 (4), 343-350
- https://doi.org/10.1111/j.1442-2042.2011.02942.x
Abstract
Objectives: To evaluate the value of three parameters from preoperative ultrasonography in predicting the outcome of transurethral prostatectomy in patients with lower urinary tract symptoms suggestive of benign prostatic obstruction. Methods: A total of 239 patients with lower urinary tract symptoms suggestive of benign prostatic obstruction entering our department for surgical therapy were prospectively recruited. All of them underwent both ultrasound and urodynamics before receiving standard transurethral prostatectomy by the same team of surgeons. For 202 patients, 6‐month follow‐up data were available after the surgery, including the International Prostate Symptom Score, the Quality of Life score and the maximum flow rate. Preoperative data stratified by different degree of recovery were compared and the influence of ultrasound parameters on the surgical outcome was analyzed by using logistic regression and receiver–operator characteristic curve analyses. Results: Baseline transitional zone index, intravesical prostatic protrusion, resistive index, detrusor wall thickness and ultrasonic estimation of bladder weight were significantly different between patients with an effective outcome and those with an ineffective outcome (P < 0.05). Resistive index, detrusor wall thickness and ultrasonic estimation of bladder weight were selected as independent factors correlated with the efficacy of transurethral prostatectomy by logistic regression (P < 0.05). All three factors had adequate area under receiver–operator characteristic curve with resistive index having the largest area (0.816, 95% CI 0.759–0.874). The combined positive predictive value in effective surgical outcome of resistive index, detrusor wall thickness and ultrasonic estimation was 96.3%. Conclusions: Resistive index, detrusor wall thickness and ultrasonic estimation adequately predict the outcome of transurethral prostatectomy. Measuring these parameters by preoperative ultrasound might aid in determining the need for surgical intervention.This publication has 37 references indexed in Scilit:
- Ultrasound measurement of bladder wall thickness is associated with the overactive bladder syndromeNeurourology and Urodynamics, 2010
- Transition Zone Index and Bothersomeness of Voiding Symptoms as Predictors of Early Unfavorable Outcomes after Transurethral Resection of ProstateUrologia Internationalis, 2008
- Is the short‐term outcome of transurethral resection of the prostate affected by preoperative degree of bladder outlet obstruction, status of detrusor contractility or detrusor overactivity?International Journal of Urology, 2006
- Ultrasound measurement of detrusor wall thickness in healthy adultsNeurourology and Urodynamics, 2006
- Analysis of prognostic factors regarding the outcome after a transurethral resection for symptomatic benign prostatic enlargementNeurourology and Urodynamics, 2006
- Resistance index in benign prostatic hyperplasia using power doppler imaging and clinical outcomes after transurethral vaporization of the prostateInternational Journal of Urology, 2005
- Urodynamic studies in the surgical treatment of benign prostatic hyperplasiaInternational braz j urol, 2003
- The standardisation of terminology of lower urinary tract function: Report from the standardisation sub‐committee of the International Continence SocietyNeurourology and Urodynamics, 2002
- Estimate Criteria for Efficacy of Treatment in Benign Prostatic HyperplasiaInternational Journal of Urology, 1996
- Ultrasound diagnosis of bladder outlet obstruction in rabbitsNeurourology and Urodynamics, 1994