Ethan Rhodes
Kidney stones are small, hard crystals that form in the urinary tract, causing severe pain. They can pass out of the body naturally through urination, but sometimes a procedure is required to break up or remove the stone if it is too large or causing a blockage. Treatment for kidney stones in a hospital setting typically involves procedures such as shockwave lithotripsy (SWL), ureteroscopy, percutaneous nephrolithotomy (PCNL), and nephrolithotripsy. These procedures may involve breaking the stone into smaller pieces using ultrasound shockwaves, lasers, or pneumatic energy, or surgically removing the stone through a small incision. The chosen procedure depends on the size, location, and type of kidney stone, and patients may need to stay in the hospital for several days afterward.
| Characteristics | Values |
|---|---|
| Treatment | Depends on the size and type of kidney stone |
| Shockwave lithotripsy | Uses shockwaves to break apart the stones from the outside of the body |
| Ureteroscopy | Involves inserting a scope through the urethra and bladder and into the ureter to break up and remove the stone |
| Percutaneous nephrolithotomy | Performed in a hospital with anesthesia and may require a hospital stay of several days |
| Nephrolithotripsy | Breaks up and removes the stone |
| Pain relievers | May be the only treatment needed for small stones |
| Surgery | May be required in severe cases or to treat hyperparathyroidism, a condition that can lead to kidney stones |
| Prevention | Drink enough liquids, change diet, and take medicines |
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What You'll Learn
Shockwave lithotripsy breaks stones into smaller pieces
Shockwave lithotripsy, also known as extracorporeal shock wave lithotripsy (ESWL), is a non-invasive procedure that uses high-energy shock waves to break down kidney stones into smaller pieces. The procedure typically takes about an hour, although the time may vary depending on the size and number of kidney stones, as well as the patient's overall health.
During ESWL, the patient lies on a table with a lithotripter machine positioned to target the location of the kidney stones. The doctor will adjust the power and intervals of the shock waves to effectively break down the stones. The shock waves are designed to target the stones with precision and do not usually damage the surrounding organs and tissues. However, it is important for the doctor to carefully administer and monitor the procedure to avoid harm to other tissues in the body.
Prior to the procedure, the doctor will run tests to determine the number, size, and location of the kidney stones. This is often done using a non-contrast CT scan, which is highly sensitive and specific for diagnosing kidney stones. The patient will also be administered anaesthesia and pain medication to ensure comfort during the procedure.
After the procedure, patients may experience side effects such as soreness, stiffness, and slight bruising near the treatment area. Most people can return to their usual routines within a few days, but it may take several days to weeks for all the stone fragments to pass out of the body through urination.
ESWL is generally considered safe and effective for treating kidney stones. However, it may not be suitable for all patients. For example, stones composed of cystine and certain types of calcium may not break up well with shock waves, and large stones may create fragments that are difficult to pass. Additionally, patients with pre-existing conditions such as chronic infection may experience reduced effectiveness of the procedure.
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Ureteroscopy: a telescope is inserted to break or remove stones
Ureteroscopy is a procedure used to break up and remove kidney stones when they are unable to pass on their own or are causing a blockage. It involves the insertion of a ureteroscope, a long, thin telescope, through the urinary passage. The ureteroscope is first passed through the urethra and into the bladder, after which it is moved up the ureter, which connects the bladder to the kidney.
Once the ureteroscope is in place, the surgeon may use instruments passed through the scope to gently remove the stone or break it up into smaller pieces using laser energy. These smaller fragments can then be passed naturally through urine. This procedure is often carried out under general anaesthesia and may require the patient to stay in the hospital for several days afterward.
Ureteroscopy is a common treatment option for kidney stones, but it is not the only procedure available. Other treatments include shockwave lithotripsy, which uses ultrasound to break up the stones from outside the body, and percutaneous nephrolithotomy, a more invasive procedure where a nephroscope is inserted through a small incision in the patient's back. The choice of procedure depends on various factors, including the size, location, and type of kidney stone, as well as the patient's individual circumstances.
It is important to note that kidney stones can be extremely painful and may cause additional symptoms such as blood in the urine, nausea, vomiting, fever, and chills. Therefore, seeking medical attention and following the advice of healthcare professionals is crucial in managing this condition effectively.
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Percutaneous nephrolithotomy: a procedure for breaking or removing stones
Percutaneous nephrolithotomy (PCNL) is a surgical procedure to remove kidney stones that are too large to pass through the urinary tract on their own or don't respond to other treatments. It is recommended when other methods to pass a kidney stone have been unsuccessful or are not possible.
During the procedure, a small incision is made in the patient's back or side, and a nephroscope (a miniature fibre-optic camera) is inserted through the incision and into the kidney. The nephroscope is used to locate and remove the kidney stone. In some cases, the surgeon may use a laser or shock-wave device (lithotripter) to break the stone into smaller pieces before removing them. PCNL is always carried out under general anaesthetic.
PCNL is a minimally invasive surgery, but it still carries risks of bleeding, infection, and other complications. The procedure typically takes three to four hours to complete, and recovery takes around two to four weeks. Patients typically need to stay in the hospital for one day after surgery to monitor recovery and manage pain.
The success rate of PCNL is approximately 75% to 98%. It is considered the most effective technique for ensuring a patient is stone-free, with most patients leaving the hospital stone-free.
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Preventative measures: diet, hydration, and medication
Preventing kidney stones from forming in the first place is the best way to avoid hospital treatment. Staying well-hydrated by drinking enough water is the most important preventative measure. Unless you have kidney failure, healthcare professionals recommend drinking six to eight 8-ounce glasses of water per day.
Diet is also a key factor in preventing kidney stones. The recommended diet depends on the type of kidney stone you have had in the past. For example, if you have had calcium oxalate stones, you may want to avoid foods that increase the amount of oxalate in your urine, such as peanuts, rhubarb, spinach, beets, Swiss chard, chocolate, and sweet potatoes. However, a diet low in calcium can increase your chances of developing kidney stones, so it is important to get enough calcium from low-oxalate, plant-based sources such as calcium-fortified juices, cereals, and some vegetables and beans.
Eating animal protein may increase your chances of developing kidney stones, so you may need to limit your intake of meat, fish, and pork. A high-sodium diet can also increase your chances of developing kidney stones, so it is important to limit your intake of canned, packaged, and fast foods, as well as condiments, seasonings, and meats, which are often high in sodium.
In addition to diet and hydration, medication can also be used to prevent kidney stones. Doctors may prescribe medications such as alpha blockers to help relax the muscles of the ureters and reduce spasms, making it easier for stones to pass. Potassium citrate can help prevent kidney stones from growing larger or returning, and thiazide diuretics can reduce the amount of calcium released into the urine. Allopurinol is another medication that can be used to prevent kidney stones by lowering uric acid levels in the urine.
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Pain management: painkillers, medication, or surgery
Pain management is a crucial aspect of treating kidney stones, as they can cause significant discomfort. The type of pain management approach depends on the size, location, and nature of the kidney stones, as well as individual patient factors.
For smaller kidney stones that are likely to pass on their own, medications are often prescribed to help manage pain and facilitate the passing of the stone. These medications can include nonsteroidal anti-inflammatory drugs (NSAIDs), which are typically recommended over opioids due to their effectiveness and reduced side effects. Examples of NSAIDs used in this context include ketorolac, which can be administered intramuscularly. It is important to note that opioids, such as meperidine, carry a higher risk of nausea and vomiting and are therefore not the first choice for pain management in kidney stone treatment.
In cases where kidney stones are larger or causing obstructions, procedures may be necessary to break up or remove the stones. Prior to these procedures, painkilling medication is often administered to ensure patient comfort. One such procedure is shockwave lithotripsy (SWL), which uses ultrasound shock waves to break down the kidney stones into smaller pieces that can then be passed in the urine. Ureteroscopy is another option, where a thin telescope called a ureteroscope is passed through the urethra and bladder into the ureter. This procedure allows surgeons to either remove the stone or break it into smaller pieces using laser energy.
For very large kidney stones, percutaneous nephrolithotomy (PCNL) may be recommended. This procedure involves making a small incision in the patient's back and inserting a nephroscope to reach the kidney stone. The stone can then be extracted or broken into smaller pieces using laser or pneumatic energy. PCNL is performed under general anaesthesia, which ensures that the patient does not experience pain during the procedure.
The choice of pain management approach, whether it be painkillers, medication, or surgery, is guided by the unique circumstances of each patient and the characteristics of their kidney stones. It is important to consult with medical professionals to determine the most appropriate course of treatment.
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Frequently asked questions
Kidney stones are small, hard crystals that form in the urinary tract from minerals and other substances.
The treatment for kidney stones depends on their size and location. If the kidney stone is small, it will likely pass out of the body through urine without treatment. If it is larger or causing a blockage, procedures such as shockwave lithotripsy, ureteroscopy, or percutaneous nephrolithotomy may be used to break up or remove the stone.
Shockwave lithotripsy (SWL) uses ultrasound to locate the kidney stone and then break it up into smaller pieces using ultrasound shock waves. The stone can then pass out of the body through urine more easily.
To prevent kidney stones, it is important to stay hydrated by drinking enough water, changing your diet to reduce salt and sugar intake, and taking prescribed medication.
