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  • Title: [Endourologic treatment of ureteral strictures. Experimental comparative study].
    Author: Soria Gálvez F, Rioja Sanz LA, Blas Marín M, Durán Flores ME, Usón Gargallo J.
    Journal: Actas Urol Esp; 2005 Mar; 29(3):296-304. PubMed ID: 15945257.
    Abstract:
    OBJECTIVES: To compare efficacy and efficiency of two different endourological therapies for ureteral stricture, and to evaluate pathological reactions of the ureters following both endourological techniques. MATERIAL AND METHODS: Ten pigs underwent experimental induction of ureteral stricture. Four weeks later, ureteral strictures were demonstrated by imaging techniques. Animals were divided in two groups, according to the received therapy: -Group I. (5 pigs), endoballoon rupture endoureterotomy. -Group II (5 pigs), Acucise balloon endoureterotomy. Ureteral stents were placed for 3 weeks following endoureterotomy. Animals were followed up four weeks after ureteral stents retrieval. RESULTS: In all cases, ureteral stricture was proved four weeks after model induction. In one case from each group, it was needed a second balloon dilatation to achieve complete endoureterotomy. Leading to ureteral restenosis, stent migration occurred in one animal from group I. Success was achieved in 80% of cases from group I, and 100% of cases from group II. CONCLUSIONS: Our results suggest that both endourological therapies are effective. Nevertheless, a higher efficiency was proved with Acucise endoureterotomy. Our pathological evidences do not support Davis's studies on ureteral healing following endoureterotomy.
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