Lithotripsy: Before Your Procedure

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What is lithotripsy?

Kidneys and lithotripsy

Lithotripsy is a way to treat kidney stones without surgery. It is also called extracorporeal shock wave lithotripsy, or ESWL. This treatment uses sound waves to break kidney stones into tiny pieces. These pieces can then pass out of the body in the urine.

At the clinic or doctor's office, you may get medicine to make you relaxed and help with pain or discomfort. The doctor will use an X-ray to find the stone.

You will lie on a table, in most cases on top of a water-filled cushion. The lithotripsy machine directs sound waves at your stone through this cushion. After the machine starts, you may hear a popping sound and feel a thump at your side. Do not move until you are told to do so. If you have any pain, tell the doctor.

The doctor may use a small, flexible tube called a stent. The doctor puts the stent inside the ureter. This is one of the tubes that takes urine from your kidneys to your bladder. The stent will let the stone pass more easily.

Your doctor may remove the stent in a few weeks.

Most people are at the doctor's office or clinic for about 2 hours. You can go back to your normal routine right away.

Most stones pass within 24 hours after the procedure. But it can take as long as several weeks. If you have a large stone, you may need to come back for several treatments. In some cases lithotripsy does not break up the stones. Surgery may be needed to remove them.

Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.

What happens before the procedure?

Procedures can be stressful. This information will help you understand what you can expect. And it will help you safely prepare for your procedure.

Preparing for the procedure

  • Understand exactly what procedure is planned, along with the risks, benefits, and other options.
  • Tell your doctors ALL the medicines, including natural health products, such as vitamins, supplements, and herbal remedies you take. Some of these can increase the risk of bleeding or interact with anesthesia.
  • If you take blood thinners, such as warfarin (Coumadin), clopidogrel (Plavix), or aspirin, be sure to talk to your doctor. He or she will tell you if you should stop taking these medicines before your procedure. Make sure that you understand exactly what your doctor wants you to do.
  • Your doctor will tell you which medicines to take or stop before your procedure. You may need to stop taking certain medicines a week or more before the procedure. So talk to your doctor as soon as you can.
  • If you have an advance care plan, let your doctor know. If you don't have one, you may want to prepare one. It lets your doctor and loved ones know your health care wishes. Doctors advise that everyone prepare these papers before any type of surgery or procedure.

What happens on the day of the procedure?

  • Follow the instructions exactly about when to stop eating and drinking. If you don't, your procedure may be cancelled. If your doctor told you to take your medicines on the day of the procedure, take them with only a sip of water.
  • Take a bath or shower before you come in for your procedure. Do not apply lotions, perfumes, deodorants, or nail polish.
  • Take off all jewellery and piercings. And take out contact lenses, if you wear them.

At the hospital or surgery centre

  • Bring a picture ID.
  • You will be kept comfortable and safe by your anesthesia provider. You may get medicine that relaxes you or puts you in a light sleep. The area being worked on will be numb.
  • The procedure will take about 1 hour.

Going home

  • Be sure you have someone to drive you home. Anesthesia and pain medicine make it unsafe for you to drive.
  • You will be given more specific instructions about recovering from your procedure. They will cover things like diet, wound care, follow-up care, driving, and getting back to your normal routine.

When should you call your doctor?

  • You have questions or concerns.
  • You don't understand how to prepare for your procedure.
  • You become ill before the procedure (such as fever, flu, or a cold).
  • You need to reschedule or have changed your mind about having the procedure.

Where can you learn more?

Go to http://www.healthwise.net/ed

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Current as of: November 20, 2015