title: Exchange of occluded catheters with transcatheter and pericatheter maneuvers.
abstract: Catheter occlusion occurs frequently and in a wide variety of situations. In this report, transcatheter and pericatheter techniques are described that permit catheter exchange despite significant occlusion. Specific indications for each technique and the authors' preferences are discussed.
mesh_terms: D002404:Catheterization / Q000009:adverse effects / Q000379:methods*; D004322:Drainage / Q000379:methods; D006801:Humans; D009403:Nephrostomy, Percutaneous