Radiology, Vol 139, 725-728, Copyright © 1981 by Radiological Society of North America
Percutaneous antegrade extrusion of ureteral stones
RF Spataro, MS McLachlan, RS Davis, AT Cockett and MK Lai
A technique to extrude small obstructing ureteral stones with a catheter
through a percutaneous nephrostomy tract is described. The technique was
successfully used to extrude obstructing ureteral stones in three patients
who had ileal loop urinary diversions and who were poor operative risks,
and in one patient who had had no previous urinary tract surgery. In these
four patients, ureteral stones were dislodged and removed without
complication. The technique may have advantages over previously described
techniques, particularly in patients with ileal conduits in whom
established retrograde cystoscopic techniques are difficult to perform, and
in patients who are poor operative risks.
