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How Is Extrinsic Obstruction of the Ureter Treated?

Nephrostomy tube and Drainage pouch
Nephrostomy tube and Drainage pouch
National Institute of Diabetes and Digestive and Kidney Diseases,
National Institutes of Health

Treatment often depends on the nature of the blockage. First efforts involve draining urine from the kidney(s). This can be done with:

  • A ureteral stent: a thin, hollow plastic tube is placed between the kidney and bladder, holding the ureter open to allow urine to drain.
  • Nephrostomy: a catheter is placed (guided by X-ray or ultrasound) through the skin into the kidney to drain urine.
  • After relief of the blockage, laparoscopic or open surgery may be performed to permanently relieve the blockage.