Abstract
Biliary extracorporeal shock wave lithotripsy (biliary ESWL) has been carried out for treatment of gallstone disease in testing attempts in Japan. To make further development of biliary ESWL to a clinically available method of gallstone treatment, the effectiveness and the safety should be confirmed on the basis of data acquired in the attempts. So, we made a questionire study on the biliary ESWL proceeding in 19 hospitals in which the treatment had been carried out for over 20 patients with gallstone.