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What is lithotripsy?
Lithotripsy is a medical treatment used to break up stones in the urinary system. These stones are most often found in the kidneys or ureters, which are the tubes that carry urine from the kidneys to the bladder.
The treatment uses shock waves or another form of focused energy to split the stone into smaller pieces. These smaller pieces can then pass out of the body more easily in the urine.
Why is lithotripsy used?
Lithotripsy is commonly used to treat kidney stones that are too large to pass naturally. It may also be recommended if a stone is causing severe pain, blockage, or repeated infections.
For many people, it offers a less invasive option than surgery. In the UK, it is often considered when doctors want to avoid open procedures and help the stone pass without a major operation.
How does the procedure work?
The most common type is called extracorporeal shock wave lithotripsy, or ESWL. “Extracorporeal” means the treatment is done from outside the body, using a machine that directs shock waves towards the stone.
During the procedure, you may lie on a special table while imaging is used to locate the stone. The treatment usually takes around 30 to 60 minutes, and some people can go home the same day.
What are the benefits and risks?
One of the main benefits is that lithotripsy does not usually require surgery. This often means a shorter recovery time, less discomfort, and a quicker return to normal activities.
However, it is not suitable for everyone, and it does not always remove the stone completely in one session. Possible side effects include blood in the urine, bruising, pain as the stone passes, or a need for further treatment.
What happens after treatment?
After lithotripsy, you may be advised to drink plenty of fluids to help flush out the stone fragments. Pain relief may also be needed while the pieces pass through the urinary tract.
Your healthcare team may ask you to strain your urine to collect fragments for testing. This can help identify the type of stone and reduce the chance of future kidney stones.
Is lithotripsy available on the NHS?
Lithotripsy is available on the NHS, although access can depend on where you live and how urgently treatment is needed. Your GP or hospital doctor may refer you to a specialist, such as a urologist.
The best treatment depends on the size, location, and type of stone, as well as your general health. A clinician can explain whether lithotripsy is suitable or whether another option would be better.
Frequently Asked Questions
What is lithotripsy?
Lithotripsy is a medical procedure that uses shock waves or other energy to break up stones, usually kidney stones, into smaller pieces so they can pass out of the body more easily.
What kinds of stones can lithotripsy treat?
Lithotripsy is most commonly used for kidney stones and sometimes for stones in the ureter, depending on their size, location, and composition.
How does lithotripsy work?
It works by directing focused energy at the stone to fragment it into smaller pieces, which can then be passed naturally in the urine or removed more easily.
Is lithotripsy surgery?
It is generally considered a minimally invasive procedure rather than open surgery because it does not require large incisions.
What are the main types of lithotripsy?
The main types include extracorporeal shock wave lithotripsy, which uses shock waves from outside the body, and laser lithotripsy, which uses a scope and laser to break stones internally.
What is extracorporeal shock wave lithotripsy?
Extracorporeal shock wave lithotripsy, or ESWL, is a type of lithotripsy that sends shock waves through the skin and body to break stones in the kidney or ureter.
What is laser lithotripsy?
Laser lithotripsy uses a thin scope passed into the urinary tract and a laser fiber to break stones into tiny fragments.
Is lithotripsy painful?
Most people feel little to moderate discomfort during lithotripsy, and pain control is often provided through sedation, anesthesia, or pain medication.
How long does a lithotripsy procedure take?
The procedure often takes about 30 to 60 minutes, though the total time may be longer because of preparation and recovery.
Do I need anesthesia for lithotripsy?
Many lithotripsy procedures use sedation or anesthesia to keep you comfortable, and the exact type depends on the method used and your overall health.
What happens after lithotripsy?
After lithotripsy, you may pass stone fragments in your urine over several days or weeks, and you may be advised to drink plenty of fluids and strain your urine.
What are the side effects of lithotripsy?
Common side effects include blood in the urine, bruising, mild pain, and passing stone fragments. Less common complications can include infection or blockage by stone pieces.
Who is a good candidate for lithotripsy?
People with certain kidney or ureteral stones that are not too large and are in a suitable location are often good candidates, but the decision depends on many medical factors.
Are there cases where lithotripsy is not recommended?
Yes, lithotripsy may not be recommended for very large stones, certain stone types, pregnancy, bleeding disorders, active infection, or some anatomical conditions.
How effective is lithotripsy?
Its effectiveness depends on the stone size, location, and type. Some stones break up and pass easily, while others may require repeat treatment or a different procedure.
Will I need more than one lithotripsy session?
Some patients only need one session, but others may need repeat treatments if the stone is large, hard, or does not break up completely.
How should I prepare for lithotripsy?
Preparation may include fasting, adjusting medications such as blood thinners, and having imaging tests or blood work. Your doctor will give specific instructions.
How soon can I go home after lithotripsy?
Many people go home the same day after the procedure, once they are awake, stable, and able to urinate or meet discharge requirements.
Can lithotripsy remove the stone completely?
Lithotripsy usually breaks the stone into smaller pieces rather than removing it directly, so the fragments still need to pass out of the body or be removed later if needed.
What is the difference between lithotripsy and other stone treatments?
Lithotripsy breaks stones into smaller pieces using energy, while other treatments may involve watching the stone pass naturally, using medication, or removing it with instruments or surgery.
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