A new percutaneous nephrostomy technique in the treatment of obstructive uropathy.

Abstract

The technique adopted has a high success rate in the treatment of supravesical obstructive uropathy and very short procedure times, thanks to US guidance and elimination of the steps involving the use of dilators of progressive diameter. In addition, the radiation exposure was low, being limited to confirming the proper placement of the needle, the wire, and the catheter in the renal pelvis. In all the other steps of the procedure we used US guidance which enabled us to choose the puncture site and follow the needle advancement. The major limit to our "mixed" technique is the need to small-diameter catheters, which entails having to replace them with larger ones with greater biocompatibility.