Exchange of an obstructed loop nephrostomy catheter: technical note

Francoise L. Cazenave, Mark C. Glass-Royal, Klemens H. Barth

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Straightening of the distal loop of an obstructed self-retaining "Cope" style nephrostomy catheter may be impossible when the retaining thread is fixed by concretions. We describe a transcatheter technique using an 18 gauge Turner biopsy needle to place a 0.038 inch exchange guidewire for retaining access to the collecting system.

Original languageEnglish (US)
Pages (from-to)327-328
Number of pages2
JournalCardiovascular and interventional radiology
Issue number5
StatePublished - Sep 1 1990


  • Catheter blockage
  • Exchange technique
  • Loop catheter
  • Nephrostomy

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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