Coagulum choledocholithotomy: a preliminary report.

ABSTRACT

Using the technique of coagulum pyelolithotomy, development of which was pioneered by Dees in 1943, we successfully extracted common duct stones from 17 dogs and three human beings. The canine model for pyelolithotomy was developed by producing an autogenous clot. We think Dee's technique could be applicable in common bile duct surgery.