Extracorporeal shock wave lithotripsy is a nonsurgical treatment for
. It uses high-energy shock waves to break
into tiny pieces. The pieces can then be passed with urine.
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Lithotripsy is used to remove kidney stones that: Are too large to passCause constant painBlock the flow of urineCause an ongoing
infectionDamage kidney tissueCause bleeding
Most people who have lithotripsy for kidney stones are free of stones within three months of treatment. Patients with stones in the kidney and upper ureter have the most success with treatment. There may be fragments that are too large to pass after the procedure. They can be treated with lithotripsy again.
Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like: Blood in the urineBruising in the back or abdomenPain as the stone fragments passFailure of stone fragments to pass, requiring additional surgeryNeed for additional treatmentsReaction to anesthesia
Some factors that may increase the risk of complications include: Bleeding disorders or taking medications that reduce blood clottingObesitySkeletal deformities
Your doctor may do the following: Physical examBlood and urine testsImaging studies to help locate the stones
Talk to your doctor about your medications. You may be asked to stop taking some medications up to one week before the procedure, like: Aspirin
or other anti-inflammatory drugs, such as ibuprofen and naproxen
Blood thinners, such as
Anti-platelets, such as
Heavy sedation or
is usually used. Heavy sedation will keep you calm. With general anesthesia, you will be asleep. It will help you remain still and avoid discomfort.
Shock waves can be passed to the stones in two ways: Water bath immersion—You will be placed in a tub of lukewarm waterSoft cushion—You will be placed on soft cushions on top of a table
Your doctor will use
to locate the stone. Your body will be positioned to target the stone. Shock waves will be passed through the stones until they are crushed. They will be crushed into pieces as small as grains of sand.
Anesthesia prevents pain during the procedure. There may be some pain and discomfort afterward from the passage of broken stones. There may also be some bruising on the area treated. Pain and discomfort after the procedure can be managed with medication.
You will be able to move almost immediately after the procedure. Be sure to follow your doctor's
, which may include:
Drink plenty of water in the weeks after the procedure to help the stone pieces pass.You will likely be able to resume daily activities within 1-2 days.Take oral pain medication as directed to help manage pain and discomfort.
After arriving home, contact your doctor if any of the following occurs: Extreme urge or inability to urinateExcessive blood in your urineSigns of infection, including fever and chillsNausea and/or vomiting that you cannot control with the medications you were given after the procedurePain that you cannot control with the medications you have been givenCough, shortness of breath, or chest pain
If you think you have an emergency, call for medical help right away.
Last reviewed May 2013 by Michael Woods, MD; Brian Randall, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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