The recent approval by the US Food and Drug Administration of Deflux (Q Med, Uppsala, Sweden), a particulate biodegradable polymer of dextran, has led to an understandable enthusiasm for treating children with vesicoureteral reflux by a routinely simple outpatient endoscopic procedure. However, Deflux is but one of a variety of particulate substances, both permanent and absorbable, that have been used to treat reflux in Europe for well over a decade with varying degrees of success. The purpose of this review is to place Deflux in this wider context to anticipate what can be expected realistically regarding the efficacy and potential hazards of this seductive technique and to make recommendations regarding its incorporation, in selected cases, in our therapeutic armamentarium.
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