LITHOTRIPSY
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Lithotripsy uses sound waves to break up large kidney stones into smaller pieces. These sound waves are also called high-energy shock waves. The most common form of lithotripsy is extracorporeal shock wave lithotripsy (ESWL). Extracorporeal means “outside the body.” In this case, it refers to the source of the shock waves. During ESWL, a special machine called a lithotripter generates the shock waves. The waves travel into your body and break apart the stones. ESWL has been around since the early 1980s. It quickly replaced surgery as the treatment of choice for larger kidney stones. ESWL is a noninvasive procedure, which means it doesn’t require surgery. Noninvasive procedures are generally safer and easier to recover from than invasive procedures. Lithotripsy takes about 45 minutes to an hour to perform. You’ll likely be given some form of anesthesia (local, regional, or general) so you don’t experience any pain. After the procedure, stone debris is removed from your kidneys or ureter, the tube leading from your kidney to your bladder, through urination.