LASER LITHOTRIPSY IN PREGNANCY - A CASE-REPORT

Laser lithotripsy is a new method of treating symptomatic urolithiasis . The pulsed dye laser lithotripter uses coumarin to deliver energy wi th a visible peak wavelength of 504 nm. This energy is transmitted to the calculus through an optical fiber, and mechanical disruption of th e stone occurs when multiple pulses of laser energy are applied to the surface of the stone. The method is safe and effective for impacted u reteral calculi. A woman at 20 weeks of pregnancy experienced intracta ble pain secondary to a 9-mm, distal ureteral stone. She was treated s uccessfully with endoscopic fragmentation using pulsed dye laser litho tripsy.