title: Exchange of an occluded nephroureteral stent by using a snare.
abstract: Percutaneous retrograde nephroureteral stent exchange may be complicated by catheter occlusion with calcareous debris. When a guide wire cannot be passed through the catheter, a snare may be advanced over the stent into the renal pelvis, permitting withdrawal of the occluded stent while maintaining access for placement of a new stent. This procedure was performed successfully in a 73-year-old man.
authors.affiliation: Department of Radiology, Jefferson Medical College of Thomas Jefferson University Hospital, Philadelphia, PA 19107.
authors.forename: D J
authors.initials: DJ
authors.lastname: Eschelman
authors.forename: K L
authors.initials: KL
authors.lastname: Sullivan
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D009403:Nephrostomy, Percutaneous; D015607:Stents; D014546:Urinary Catheterization / Q000009:adverse effects*; D014547:Urinary Diversion