The Queen's Medical Center

Cystoscopy/Kidney Stone Center
Frequently Asked Questions

What is Kidney Stone Disease?
Most kidney stones result from chemical imbalances in the body. Normal urine contains substances that inhibit the formation of crystals. Stone form when the crystals separate from the urine and build up on the inner surface of the kidney. Common symptoms associated with kidney stones include mild to severe back pain, nausea, vomiting, and/or blood in the urine. Many factors, some of them poorly understood, are thought to influence stone formation:

  • Gender (men > women),
  • Age (30-50),
  • Diet (high in stone-forming substances)
  • Geographical location (hot climate)

What is Extracorporeal Lithotripsy?
Extracorporeal Lithotripsy is considered the first line of therapy for most kidney and upper ureteral stones. The term "extracorporeal" refers to the act that the treatment does not require any incision. The term "litho" means stone and "tripsy" means to crush. This therapy is designed to break stones to a size that can pass through the urine.

What are the Benefits of Lithotripsy?
In the past, stones often had to be surgically removed by making an incision in the patient's body and cutting into the kidney. This was painful and recovery took days, even weeks. Complications were not uncommon.

The Storz Moodulith SLX utilizes the latest technology available for the treatment of kidney stones. Patients experience less pain and have a shorter recovery time. Most patients are treated on an "outpatient" basis, meaning that they can go home on the same day as their treatment.

What Should I Expect on the First Day of My Visit?
When you arrive at the Kidney Stone Center, our nurse will check your vital signs and review your health history. Medication will be given intravenously to help you relax and to minimize discomfort. Your physician, working with the staff, will locate your kidney stones with the aid of x-rays. You are now ready for your procedure. You will hear a clicking noise each time a shockwave is delivered. The procedure will take about 30 minutes. Afterwards, you will be taken to the recovery room where your vital signs will continue to be monitored and you will be able to rest until ready to be discharged home.

Monday thru Friday:
8:00am to 4:30pm





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