title: Percutaneous U-loop nephrostomy.
abstract: Single-tube nephrostomy drainage can be converted to U-loop drainage using percutaneous methods. Because only local anesthesia is required the technique can be used for patients who are poor operative risks.
mesh_terms: D006801:Humans; D007668:Kidney / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D014546:Urinary Catheterization / Q000379:methods*