Kidney stones

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Intravenous pyelogram (IVP)	Kidney anatomy	Kidney - blood and urine flow	Lithotripsy procedure
Nephrolithiasis

Renal calculi; Nephrolithiasis; Stones - kidney

The goal of treatment is to relieve symptoms and prevent further symptoms. (Kidney stones usually pass on their own.) Treatment varies depending on the type of stone and the extent of symptoms or complications. Hospitalization may be required if the symptoms are severe.

When the stone passes, the urine should be strained and the stone saved for analysis to determine the type.

Drink enough fluids to produce a high urinary output. Water is encouraged, at least 6 to 8 glasses per day. Intravenous fluids may be required.

Pain relievers may be needed to control renal colic (pain associated with the passage of stones). Severe pain may require narcotic analgesics.

Depending on the type of stone, medications may be given to decrease stone formation and/or aid in the breakdown and excretion of the material causing the stone. These may include such medications as diuretics, phosphate solutions, allopurinol (for uric acid stones), antibiotics (for struvite stones), and medications that alkalinize the urine such as sodium bicarbonate or sodium citrate.

If the stone is not passed on its own, surgical removal may be required. Lithotripsy may be an alternative to surgery. Ultrasonic waves or shock waves are used to break up stones so that they may be expelled in the urine (extracorporeal shock-wave lithotripsy) or removed with an endoscope that is inserted into the kidney via a small flank incision (percutaneous nephrolithotomy).

You may need to modify your diet to prevent some types of stones from returning.

Kidney stones are painful but usually are excreted without causing permanent damage. They tend to return, especially if the underlying cause is not found and treated.

• Recurrence of stones
• Urinary tract infection
• Obstruction of the ureter, acute unilateral obstructive uropathy
• Kidney damage , scarring
• Decrease or loss of function of the affected kidney

Call your health care provider if symptoms indicate a kidney stone may be present.

Also call if symptoms of kidney stone recur, urination becomes painful, urine output decreases, or other new symptoms develop.

Review Date: 09/13/2005
Reviewed By: Robert Mushnick, M.D., Assistant Clinical Professor, SUNY Downstate Health Center, Brooklyn, NY. Review provided by VeriMed Healthcare Network.