title: Percutaneous nephropyelostomy using a fine-needle puncture set.
abstract: The authors describe an improved method of percutaneous nephropyelostomy using a long, fine, flexible needle combined with a wider and shorter cannula. The needle facilitates atraumatic puncture of the renal collecting system and antegrade pyelography and subsequently serves as a guide over which the nephrostomy cannula is inserted. This technique was successful in 105 of 115 procedures (93 patients) over a period of 15 months and has replaced operative nephrostomy in the author's hospital.
mesh_terms: D006801:Humans; D007682:Kidney Pelvis / Q000601:surgery*; D009339:Needles; D011677:Punctures; D014546:Urinary Catheterization