Abstract
This study highlights that even small residual stone fragments (RFs) after postpercutaneous nephrolithomy (PCNL) are a significant risk factor for subsequent ancillary surgical interventions. In particular, although other groups have demonstrated that RFs >2 mm are associated with stone events, 1 Raman J.D. Bagrodia A. Gupta A. et al. Natural history of residual fragments following percutaneous nephrostolithotomy. J Urol. 2009; 181: 1163-1168 Abstract Full Text Full Text PDF PubMed Scopus (156) Google Scholar these authors highlight that even fragments <2 mm pose a significant risk for repeat procedures with a cumulative retreatment rate of 33.3% over 7 years. Furthermore, the risk of retreatment is greater if RFs are non–calcium based with a cumulative retreatment rate of 56.4%. These data continue to raise the question of whether any RF can be accurately classified as clinically insignificant. Retreatment After Percutaneous Nephrolithotomy in the Computed Tomographic Era: Long-term Follow-upUrologyVol. 84Issue 2PreviewTo examine the long-term retreatment rates and explore prognostic factors after percutaneous nephrolithotomy (PCNL) in the computed tomographic era. Full-Text PDF ReplyUrologyVol. 84Issue 2PreviewWe appreciate the thoughtful comments. Full-Text PDF
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