To compare, in a prospective study, the efficacy of a single injection of polydimethylsiloxane (Macroplastique) or dextranomer/hyaluronic acid copolymer (Deflux), a new biodegradable substance, and to assess the short-term and 1-year clinical effects concerning reflux resolution and the safety of these two bulking agents. Subureteral injection of bulking agents has recently demonstrated good success rates for endoscopic treatment of vesicoureteral reflux. Macroplastique has been one of the most popular bulking agents during the past years. Nevertheless, considering the synthetic property, new biodegradable substances have become more relevant.
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