Extracorporeal shock-wave lithotripsy (ESWL) causes disintegration of renal and biliary stones (see CALCULI) without physical contact, and is therefore an attractive procedure for patients and surgeons alike.
Shock waves generated outside the body can be accurately focused with a re?ector whilst the patient is suspended in water, to facilitate transmission of the waves. These are focused on the calculus. The resultant ?ne fragments are passed spontaneously in the urine with minimal, if any, discomfort. The procedure has been shown to be safe, short and e?ective, and is most acceptable to patients.... lithotripsy
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