Lithotripsy is a medical procedure that uses shock waves to break up stones in the kidney, bladder, or ureter (tube that carries urine from your kidneys to your bladder). After the procedure, the tiny pieces of stones pass out of your body in your urine.
Extracorporeal shock wave lithotripsy; Shock wave lithotripsy; Laser lithotripsy; Percutaneous lithotripsy; Endoscopic lithotripsy; ESWL
Extracorporeal shock wave lithotripsy (ESWL) is the most common type of lithotripsy. "Extracorporeal" means outside the body.
You will wear a medical gown and lie on an exam table on top of a soft, water-filled cushion. You will be given a mild sedative or pain medicine before the procedure starts. You will also be given antibiotics before the procedure starts to prevent infection.
High-energy shock waves, also called sound waves, will pass through your body until they hit the kidney stones. You may feel a tapping sensation when this starts. The waves break the stones into tiny pieces. Often, you will be given general anesthesia for the procedure. You will be asleep and pain-free.
The lithotripsy procedure should take about 45 minutes to 1 hour.
A tube may be placed through your bladder or back into your kidney. This tube will drain urine from your kidney until all the small pieces of stone pass out of your body. The tube may be put in place before or after your lithotripsy treatment.
See also: Percutaneous urinary procedures
Lithotripsy is used to remove kidney stones that are causing:
Lithotripsy is usually safe. Ask your doctor about these possible complications.
Always tell your doctor or nurse:
During the days before the surgery:
On the day of your procedure:
After the procedure, you will stay in the recovery room for up to about 2 hours. Most people are able to go home the day of their procedure.
See also: Lithotripsy - discharge
How well you do depends on the number of stones you have, their size, and where in your urinary system they are. Usually, lithotripsy completely removes the stones.
Curhan GC. Nephrolithiasis. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 128.
Lingeman JE, Matlaga BR, Evan AP. Surgical management of upper urinary tract calculi. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, PA: Saunders; 2007:chap 44.