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  • Title: Management of sphincter dyssynergia using the sphincter stent prosthesis in chronically catheterized SCI men.
    Author: Chancellor MB, Rivas DA, Abdill CK, Staas WE, Bennett CJ, Finocchiaro MV, Razi S, Bennett JK, Green BG, Foote JE.
    Journal: J Spinal Cord Med; 1995 Apr; 18(2):88-94. PubMed ID: 7640978.
    Abstract:
    This effort represents a subset analysis of the long-term Multicenter North American Trial of the UroLume sphincter stent prosthesis to determine the effect of the sphincter stent prosthesis in SCI men afflicted with detrusor-external sphincter dyssynergia (DESD) and chronically managed with an indwelling urinary catheter. Forty-one of 153 male patients in this study were evaluated urodynamically before and after placement of the sphincter stent prosthesis. Of the 41 patients, 34 (81 percent) suffered cervical-level injury while 10 patients (25 percent) had been treated previously with external sphincterotomy. Forty patients (98 percent) were troubled with recurrent urinary tract infections (UTI), with a mean of 4.6 +/- 3 episodes of UTI per year. Seven patients (17 percent) demonstrated hydronephrosis prior to stent placement. Follow-up ranged from six to 44 months. Voiding pressures decreased from a mean of 77 +/- 23 cmH2O preoperatively to 35 +/- 18 cmH2O at 12 months (n = 34) and 33 +/- 20 cmH2O at 24 months (n = 22) after stent insertion (p = 0.001). Post-void residual urinary volume decreased from 202 +/- 187 ml preinsertion to 64 +/- 69 ml at 24 months (p = 0.001) postinsertion. Maximum cystometric capacity remained constant at 201 +/- 144 ml preinsertion to 203 +/- 79 ml at 24 months (p = 0.75) postinsertion. No significant changes in any of the urodynamic parameters occurred after 24 months of follow-up between patients with (n = 10) and without (n = 31) previous external sphincterotomy. Neither hemorrhage requiring blood transfusion, obstructive hyperplastic epithelial overgrowth, stent encrustation or stone formation, nor soft tissue erosion occurred in any patient.(ABSTRACT TRUNCATED AT 250 WORDS)
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