Post-Extracorporeal Shock Wave Lithotripsy: What to Expect? - Urology

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Post-extracorporeal shock wave therapy (ESWT)


Hello, doctor.
I underwent extracorporeal shock wave lithotripsy yesterday, and the doctor informed me that there were many gas bubbles in my intestines, but the procedure was still performed.
I would like to ask, what are the reasons that gas bubbles could affect the surgery? What is the success rate? Since yesterday, I have been filtering my urine with a strainer, but I haven't seen anything.
How long does it usually take for the stones to pass?

Mr. S, 50~59 year old female. Ask Date: 2018/10/20

Dr. Du Shixi reply Urology


Hello: It should not have an impact.
If the stone is very small, it may affect localization.
However, it's not a major issue.
If the stone is close to the kidney, it may take 20-30 centimeters to pass, which could take a few weeks.
If it's near the bladder, it will pass more quickly.
Drink plenty of water, and wish you good health.

Reply Date: 2018/10/20

More Info


After undergoing Extracorporeal Shock Wave Lithotripsy (ESWL), it is important to understand what to expect in terms of recovery, potential complications, and the timeline for stone passage. ESWL is a non-invasive procedure used to treat kidney stones by using shock waves to break the stones into smaller pieces, allowing them to be passed more easily through the urinary tract.


Impact of Air Bubbles
Regarding your concern about the presence of air bubbles in your intestines during the procedure, it is worth noting that while air bubbles can sometimes obscure imaging during diagnostic procedures, they typically do not significantly affect the ESWL procedure itself. The shock waves are directed at the kidney stones, and the presence of gas in the intestines may not interfere with the effectiveness of the treatment. However, it is always best to discuss any specific concerns with your healthcare provider, as they can provide tailored advice based on your individual situation.


Success Rate of ESWL
The success rate of ESWL can vary depending on several factors, including the size and location of the kidney stones, the type of stones, and the overall health of the patient. Generally, ESWL has a success rate of about 70-90% for stones smaller than 2 cm. Larger stones may require additional treatments or alternative procedures. It is important to follow up with your doctor to assess the effectiveness of the treatment and to determine if further intervention is necessary.


Timeline for Stone Passage
After ESWL, it is common for patients to experience some discomfort as the fragments of the stone pass through the urinary tract. The timeline for stone passage can vary widely among individuals. Typically, smaller fragments may pass within a few days to a couple of weeks. However, larger fragments may take longer to pass. It is crucial to stay hydrated by drinking plenty of fluids, as this can help facilitate the passage of stone fragments.


Monitoring for Complications
While most patients recover well after ESWL, it is essential to monitor for any potential complications. Common side effects may include:
- Hematuria: Blood in the urine is common after the procedure and usually resolves on its own.

- Pain: Some discomfort or pain may occur as the stone fragments pass. Over-the-counter pain relievers can help manage this.

- Infection: If you experience fever, chills, or persistent pain, it is important to contact your healthcare provider, as these may be signs of an infection.


Follow-Up Care
It is advisable to have a follow-up appointment with your urologist to evaluate the results of the ESWL and to determine if any further treatment is needed. They may perform imaging studies, such as a CT scan or ultrasound, to assess the status of the kidney stones and to ensure that no significant fragments remain.

In summary, while the presence of air bubbles may not significantly impact the ESWL procedure, it is essential to monitor your recovery and communicate any concerns with your healthcare provider. The success rate of ESWL is generally high, and with proper hydration and follow-up care, you can expect to pass the stone fragments within a few weeks. Always prioritize your health and seek medical advice if you have any concerns during your recovery process.

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