RESUMO
We analyzed the role of indwelling pigtail stent in successful uretic stone retrieval by second ureterosocopy when first ureterscopy failed. Over a period of 44 months, initial ureteroscopy failed in 41 patients. out of them, 32 patients had gigtail stent inserted and 9 were left without any stent. The group with stent, passed stone spontaneously or had stone retrieval on second ureteroscopy in 84% cases compared with 22% unstented cases, Uretero-lithotomy was done in 5 patients [16%] with stent and 7 cases [78%] without stent, It is concluded that following failed ureteroscopy, insertion of double pigtail stent results in higher subsequent successful ureteroscopic stone removal or spontaneous passage with a lower rate of consequent ureterolithotomy