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What Size Kidney Stone Requires Lithotripsy? | Plurefy Kidney Stone Guide

  • Writer: plurefy com
    plurefy com
  • Aug 5
  • 4 min read

Updated: Sep 3

Illustration of a kidney with a 1.5 cm stone labeled in the calyx, showing lithotripsy procedure with tubes and arrows, beige background.

When it comes to kidney stones, size matters. The size of a kidney stone plays a crucial role in determining the most effective treatment method. One common treatment is lithotripsy, a non-invasive procedure that uses shock waves to break down stones into smaller, passable pieces. But what size kidney stone requires lithotripsy? Let's delve into this topic to find out.


Understanding Kidney Stones

Kidney stones are hard deposits made of minerals and salts that form inside your kidneys. They can result from various factors, including diet, excess body weight, certain medical conditions, and specific supplements or medications. These stones can affect any part of your urinary tract, from your kidneys to your bladder, causing significant pain and discomfort.


Causes of Kidney Stones

Illustration of kidney causes: dehydration, unhealthy diet, medical conditions. Includes desert, food items, medical symbol, and kidney diagram.

The formation of kidney stones is often linked to several factors. Dehydration is a primary cause, as it leads to concentrated urine, which fosters stone formation. Diets high in salt, sugar, and protein can also contribute to stone development. Additionally, certain medical conditions like hyperparathyroidism or urinary tract infections can increase the risk of kidney stones. Explore key causes of kidney stones


Types of Kidney Stones

Kidney stones come in various types, each with unique characteristics. Calcium stones, which include calcium oxalate and calcium phosphate stones, are the most common. Uric acid stones form in individuals with high protein diets. Struvite stones can develop as a result of urinary tract infections, while cystine stones are rare and result from a genetic disorder. Types of kidney stones explained


Symptoms of Kidney Stones

While smaller stones might not cause noticeable symptoms, larger stones can lead to a range of uncomfortable and sometimes severe symptoms.

Kidney stones infographic shows severe pain, pain fluctuation, urination issues, and systemic symptoms like nausea, vomiting, and fever.

Severe Pain

Often described as excruciating, this pain typically starts in the side and back, just below the ribs, and can move to the lower abdomen and groin.

Pain Fluctuation

The pain may come in waves, fluctuating in intensity, which is often a sign of the stone moving within the urinary tract.

Urination Issues

Painful urination, pink, red, or brown urine, cloudy or foul-smelling urine, and a persistent need to urinate are common symptoms.

Systemic Symptoms

Nausea, vomiting, fever, and chills might occur, especially if an infection is present. These require immediate medical attention.


Size Matters: When Lithotripsy is Recommended

The treatment plan for kidney stones often depends on their size. Here's a general guideline to help understand when lithotripsy might be necessary.

Small Stones (Less than 5mm)

Stones smaller than 5mm can usually pass through the urinary tract on their own.

  • Natural Passage: Your doctor might recommend drinking plenty of water to help the stone pass naturally, along with pain relievers to manage discomfort.

  • Medical Assistance: In some cases, medications that relax the muscles in your ureter can be prescribed to help pass the stone more easily.

  • Dietary Adjustments: Doctors may suggest dietary changes, such as reducing salt and protein intake, to prevent future stone formation.

Medium Stones (5mm to 10mm)

For stones ranging from 5mm to 10mm, lithotripsy is often considered an effective treatment option.

  • Shock Wave Treatment: The procedure uses shock waves to break the stones into smaller, more manageable pieces.

  • Non-Invasive and Convenient: Lithotripsy is non-invasive and typically performed on an outpatient basis.

  • Additional Measures: Post-procedure, doctors may recommend increased fluid intake and certain medications. Lithotripsy vs. medication

Large Stones (Larger than 10mm)

Stones larger than 10mm might require more invasive treatments beyond lithotripsy.

  • Alternative Procedures: Procedures such as ureteroscopy or percutaneous nephrolithotomy (PCNL) may be recommended.

  • Invasive Techniques: Ureteroscopy involves using a scope, while PCNL involves small surgical instruments.

  • Post-Operative Care: Careful monitoring and follow-up care ensure complete recovery.


When a kidney stone is too large to pass naturally, your doctor might suggest lithotripsy. The symptoms leading to this diagnosis can sometimes be misleading; for instance, many wonder if kidney stones cause constipation. It's also helpful to understand that various factors can affect your renal health, and it's normal to ask does kidney function fluctuate. Even medications are a consideration, leading to questions like, "does Ozempic cause kidney stones?"


Understanding the broader context of renal health is equally important. Chronic kidney problems can have wider effects on the body, which is why some ask if kidney disease can cause weight gain. These conditions can also impact other systems, explaining why kidney disease can cause anemia. Discussing these related health topics with your doctor can provide a more complete picture of your overall well-being.


What is Lithotripsy?

Lithotripsy is a medical procedure that uses shock waves to break down kidney stones into smaller fragments. These fragments can then be passed naturally through the urinary tract.


How Does Lithotripsy Work?

During the procedure, you will lie on a water-filled cushion, and a machine called a lithotripter sends shock waves through your body.

  • Shock Wave Mechanism: The shock waves break the kidney stones into smaller pieces.

  • Comfort and Ease: The procedure is generally comfortable and may involve mild sedation.

  • Effectiveness: Lithotripsy is most effective for mid-sized stones in accessible locations. Non-invasive kidney stone treatments


Types of Lithotripsy

  • Extracorporeal Shock Wave Lithotripsy (ESWL): Uses sound waves from outside the body.

  • Laser Lithotripsy: A laser fiber is inserted through the urethra.

  • Advancements in Technology: New technologies improve outcomes with fewer side effects.


Preparing for Lithotripsy

Pre-Procedure Testing

  • Imaging Tests: X-rays or CT scans determine stone size and location.

  • Laboratory Tests: Blood and urine tests check for infection and kidney function.

  • Comprehensive Evaluation: Ensures you're a suitable candidate.

Preparing Your Body

  • Dietary Restrictions: You may be advised to avoid certain foods.

  • Medication Management: Some medications might need to be paused.

  • Hydration: Staying hydrated aids in stone fragment elimination.


Recovery and Aftercare

Managing Discomfort

  • Hydration: Drink plenty of water to flush out fragments.

  • Pain Management: Your doctor might prescribe medication.

  • Monitoring Symptoms: Track and report any unusual symptoms.

Possible Side Effects

  • Urinary Changes: Blood in the urine is common.

  • Minor Discomfort: Bruising or minor skin irritation may occur.

  • Follow-Up Care: Attend follow-up appointments for proper healing.


When to Seek Medical Attention

If you experience severe pain, fever, chills, or difficulty urinating after lithotripsy, contact your healthcare provider.

  • Recognizing Complications: Symptoms could indicate infection or obstruction.

  • Timely Intervention: Prevents further complications.

  • Open Communication: Keep your doctor informed.


Conclusion

Lithotripsy is a valuable treatment option for medium-sized kidney stones, typically ranging from 5mm to 10mm. However, the best treatment depends on size, location, and overall health.

  • Consultation with Professionals: Work closely with your doctor.

  • Understanding Your Options: Know your treatment choices.

  • Proactive Health Management: Early diagnosis and treatment can prevent complications. Prevent future kidney stones

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