PMID- 32680502 OWN - NLM STAT- MEDLINE DCOM- 20210319 LR - 20210319 IS - 1471-2490 (Electronic) IS - 1471-2490 (Linking) VI - 20 IP - 1 DP - 2020 Jul 17 TI - Embedded upper end of double J stent at the site of renal pelvis injury following percutaneous nephrolithotomy: a rare complication. PG - 102 LID - 10.1186/s12894-020-00673-8 [doi] LID - 102 AB - BACKGROUND: Injury of the renal collecting system is a well-known complication of percutaneous nephrolithotomy (PNL). Large injuries may cause excessive bleeding and fluid extravasation and require adequate drainage using several modalities such placement of JJ stents. Herein, we report on two cases in which the upper coil of the JJ stent got buried in the fibrous tissues which formed due to an injury of the collecting system during PNL. CASE PRESENTATION: 40 years old male and 32 years old female underwent standard PNL for partial and total staghorn calculi, respectively. During the procedure in both cases, the renal pelvis was injured. In both cases, JJ stent was used to drain the collecting system. Trial to remove the JJ stent 6 weeks following the procedure failed because the upper coils of the stents were embedded in the fibrous tissues at the perforation site. Laser incision of the fibrous tissues and releasing the upper coil of the stents were performed using percutaneous approach in the first case and flexible ureterorenoscopy (fURS) in the second patient. The procedures were uneventful in both cases. CONCLUSION: This is the first report of embedded JJ stents which got buried by fibrous tissues at the site of collecting system injury that occurred during PNL. To prevent this complication in such cases, we suggest draining the collecting system using nephrostomy tube instead of JJ stent. Alternatively, the upper coil of the stent should be placed away from the injury site. FAU - Hammad, Fayez T AU - Hammad FT AD - Department of Surgery, College of Medicine and Health Sciences, United Arab Emirates University and Mediclinic Al Ain, Po Box 17666, Al Ain, UAE. fayezhammad@hotmail.com. LA - eng PT - Case Reports PT - Journal Article DEP - 20200717 PL - England TA - BMC Urol JT - BMC urology JID - 100968571 SB - IM MH - Adult MH - Female MH - Humans MH - Kidney Pelvis/*injuries MH - Male MH - *Nephrolithotomy, Percutaneous MH - Postoperative Complications/*etiology MH - Prosthesis Design MH - *Prosthesis Failure MH - Stents/*adverse effects PMC - PMC7367413 OTO - NOTNLM OT - Case report OT - Embedded double J stent OT - Injury OT - Percutaneous nephrolithotomy COIS- None. EDAT- 2020/07/19 06:00 MHDA- 2021/03/20 06:00 PMCR- 2020/07/17 CRDT- 2020/07/19 06:00 PHST- 2020/02/05 00:00 [received] PHST- 2020/07/09 00:00 [accepted] PHST- 2020/07/19 06:00 [entrez] PHST- 2020/07/19 06:00 [pubmed] PHST- 2021/03/20 06:00 [medline] PHST- 2020/07/17 00:00 [pmc-release] AID - 10.1186/s12894-020-00673-8 [pii] AID - 673 [pii] AID - 10.1186/s12894-020-00673-8 [doi] PST - epublish SO - BMC Urol. 2020 Jul 17;20(1):102. doi: 10.1186/s12894-020-00673-8.