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  • Title: Rotoresection versus transurethral resection of the prostate: short-term evaluation of a prospective randomized study.
    Author: Soliman SA, Wadie BS, Ibrahim el-HE, Shehab El-Dein AB.
    Journal: J Urol; 2007 Mar; 177(3):1036-9. PubMed ID: 17296407.
    Abstract:
    PURPOSE: We compared in a prospective fashion the short-term outcome of rotoresection to transurethral resection of the prostate. MATERIALS AND METHODS: A total of 50 patients with bladder outlet obstruction secondary to benign prostatic hyperplasia were randomized into 2 groups, rotoresection and transurethral resection of the prostate. Mean+/-SD patient age was 60.76+/-5.85 years in the rotoresection and 64.24+/-6.84 in the transurethral resection groups. All patients had an International Prostate Symptom Score of 8 or more, maximum free flow rate less than 15 ml per second, prostate volume 20 to 100 ml and prostate specific antigen 1 to 4 ng/ml. Pressure flow study revealed bladder outlet obstruction (Schafer's grade 3 or more). Patients were assessed at 1, 3 and 6 months by International Prostate Symptom Score, maximum free flow rate, transrectal ultrasound, pressure flow study, hemoglobin and urinalysis. RESULTS: At 6 months International Prostate Symptom Score decreased from 26.2+/-4.06 to 5.32+/-1.52 in the rotoresection group and from 22.84+/-4.56 to 7+/-1.4 in the transurethral resection group. Maximum free flow rate increased from 7.87+/-2.24 to 25.29+/-10.39 ml per second in the rotoresection group and from 9.44+/-2.29 to 25.2+/-5.8 ml per second in the transurethral group. Prostate volume decreased from 41.2+/-16.58 to 17.24+/-7.61 ml in the rotoresection group and from 40.6+/-16.93 to 18.28+/-8.75 ml in the transurethral group. Detrusor pressure at maximum flow and Schafer grade decreased from 79.84+/-26.8 cm H2O and 4.24+/-0.97 to 38.8+/-18.8 cm H2O and 1.24+/-0.93 in the rotoresection group, and from 63.04+/-21.08 cm H2O and 3.48+/-0.65 to 34.16+/-12.7 cm H2O and 1+/-0.7 in the transurethral group. Dilutional hyponatremia was higher with transurethral resection of the prostate (p=0.005) but no patient showed manifestations of the transurethral syndrome. Mild stress urinary incontinence was noted in 4 patients in the rotoresection group and in 3 in the transurethral group. CONCLUSIONS: Rotoresection is a safe and effective method of treating bladder outlet obstruction resulting from benign prostatic hyperplasia, and its efficacy is comparable to transurethral resection of the prostate.
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