Exchange of an occluded nephroureteral stent by using a snare.

Eschelman, D J; Sullivan, K L · Radiology · 1993

case_report · Level V

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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.

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