Post-Extracorporeal Shock Wave Lithotripsy: Pain and Recovery - Urology

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Post-extracorporeal shock wave therapy (ESWT)


I underwent extracorporeal shock wave lithotripsy on June 5th of this year.
Recently, during a follow-up ultrasound, the doctor mentioned that there is only a small white spot (0.38 cm) remaining, which should be able to pass out with hydration.
However, I have another concern.
Before the lithotripsy, I had issues with a urinary tract infection, which I believe was caused by the kidney stones.
Since the procedure, I have been experiencing mild urethral discomfort—it's not pain, but rather a tingling sensation, like an electric shock, occurring intermittently.
I had a urinalysis during my follow-up, and all values were normal.
The doctor suggested that it might just be mild inflammation, which may not show up in the report, and prescribed me a three-day course of antibiotics and pain relief medication.
Currently, I do not have any symptoms of frequent urination.
Could this condition be a residual effect of the surgery? If it is not related to a urinary tract infection, what could be causing this sensation? Could it be due to irritation from the passage of stones?

Peter, 30~39 year old female. Ask Date: 2021/06/28

Dr. Du Shixi reply Urology


Hello: After lithotripsy, there shouldn't be too many side effects.
If you experience painful urination, it may be due to the passage of stone fragments.
Drinking plenty of water can help, as it may expedite their expulsion.
Wishing you good health.

Reply Date: 2021/06/28

More Info


After undergoing Extracorporeal Shock Wave Lithotripsy (ESWL) on June 5, it is understandable to have concerns regarding post-operative pain and recovery, especially given your history of urinary tract infection (UTI) and the current symptoms you are experiencing.
Firstly, it is important to recognize that ESWL is a non-invasive procedure used to break down kidney stones into smaller fragments that can be passed more easily through the urinary tract. While many patients experience relief from their symptoms after the procedure, some may continue to experience discomfort or pain as part of the recovery process.

The symptoms you describe—specifically the intermittent sharp, electric-like pain in the urethra—could be attributed to several factors:
1. Post-Procedure Inflammation: After ESWL, it is common for the urinary tract to experience some degree of inflammation. This can lead to sensations of discomfort or pain, which may not necessarily indicate a complication but rather a normal part of the healing process. The inflammation can be exacerbated by the presence of residual stone fragments, which may irritate the lining of the urinary tract as they are passed.

2. Urethral Irritation or Trauma: The procedure itself can cause minor trauma to the urethra or bladder, leading to temporary discomfort. This irritation can manifest as a sharp, stabbing pain, particularly during urination. If you had a UTI prior to the procedure, the inflammation from the infection could also contribute to ongoing discomfort.

3. Stone Passage: As you mentioned, the remaining stone fragment (0.38 cm) may still be causing some irritation as it moves through the urinary tract. The process of passing stone fragments can lead to sharp pain or discomfort, which may feel like a "stinging" sensation.

4. Infection: Although your urine tests returned normal, it is still possible to have a mild infection that may not be easily detectable. The antibiotics prescribed by your doctor are a precautionary measure to address any potential lingering infection.

5. Nerve Sensitivity: Sometimes, after a procedure, the nerves in the area may become more sensitive, leading to sensations that can feel like electric shocks or sharp pains. This can be a temporary condition as the nerves heal.

Given these possibilities, it is crucial to monitor your symptoms closely. If the pain persists or worsens, or if you develop new symptoms such as fever, chills, or increased urinary frequency, you should contact your healthcare provider promptly. They may consider further evaluation, such as imaging studies, to ensure that there are no complications, such as obstruction or additional stones.

In the meantime, following your doctor's advice regarding hydration and medication is essential. Staying well-hydrated can help facilitate the passage of any remaining stone fragments and may alleviate some discomfort. Additionally, using over-the-counter pain relief, as recommended by your physician, can help manage your symptoms.

In conclusion, while the sensations you are experiencing may be concerning, they are not uncommon after ESWL, especially in the context of a recent urinary tract infection. With appropriate monitoring and care, most patients find that their symptoms improve over time as the urinary tract heals and any remaining stone fragments are passed. If you have any further questions or concerns, do not hesitate to reach out to your healthcare provider for personalized guidance.

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