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Assessment of Residual Stone Fragments After Retrograde Intrarenal Surgery

2018; Mary Ann Liebert, Inc.; Volume: 32; Issue: 12 Linguagem: Inglês

10.1089/end.2018.0529

1557-900X

Alexandre Danilovic, Andrea Cavalanti, Bruno Aragão Rocha, Olivier Traxer, Fábio César Miranda Torricelli, Giovanni Scala Marchini, Eduardo Mazzucchi, Miguel Srougi,

Traumatic Ocular and Foreign Body Injuries

To define the most suitable approach to assess residual stone fragments after retrograde intrarenal surgery (RIRS).Ninety-two patients (115 renal units) submitted to RIRS for symptomatic kidney stones >5 mm and <20 mm or 2 mm residual fragments in 16.5% (19/115) renal units. Stone-free status by END at the end of RIRS was coincident with NCCT in 93.0% of the cases (40/43). There were no cases of residual fragments >2 mm on NCCT if END resulted in stone-free status. In all cases where END resulted in residual fragments >2 mm, US proved to be correct according to NCCT. Neither US nor KUB was able to identify residual fragments between 0 and 2 mm. KUB had only 31.6% (6/19) sensitivity to detect residual fragments >2 mm and did not add sensitivity or specificity to US.In the follow-up imaging after RIRS, we suggest that if END resulted in residual fragments 2 mm.