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  • Title: Transrectal ultrasound urodynamics.
    Author: Bidair M, Tiechman JM, Brodak PP, Juma S.
    Journal: Urology; 1993 Dec; 42(6):640-4; discussion 644-5. PubMed ID: 8256397.
    Abstract:
    Seventy-seven male patients (34 with cervical spine injury, 32 with thoracic spine injury, 9 with lumbosacral spine injury, and 2 with multiple sclerosis) who were referred to our spinal cord injury unit for urologic evaluation had videourodynamic studies using transrectal ultrasound and fluoroscopy. All were studied twice in the same session: first with transrectal ultrasound urodynamics (TRUSU) and the second time with conventional fluoroscopic videourodynamics (VUD). The findings were compared. Efficacy of TRUSU: (1) clearly documented flow of fluid through bladder neck into posterior urethra before clinical leakage occurred per urethra; (2) allowed accurate placement of EMG needle electrodes in external urinary sphincter under visual guidance; (3) provided high-quality imaging of surrounding structures and allowed assessment of bladder neck, prostate, seminal vesicles, and posterior urethra; (4) eliminated radiation exposure to the patient and the examiner, with no time limit imposed on imaging so that repeat studies could be done to evaluate patients on new drug treatments or postoperatively at no increased risks; and (5) its availability to most urologists at their office at considerably less cost to set up than fluoroscopy. In our study TRUSU identified a hypoechoic lesion in the prostate of 1 patient and a tumor in the bladder neck of another patient. Fluoroscopic VUD identified 6 patients with bladder diverticula and 2 with grades 1 and 2 vesicoureteral reflux which TRUSU did not identify. Our experience indicates TRUSU is a valid and preferable alternative to fluoroscopic VUD for patients with spinal cord injury.
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