“…74 In addition to an adequate ES, surveillance for benign, stone-associated CBD strictures must be undertaken because these strictures must be addressed before stone extraction is possible. 75,76 Multiple stones should be extracted one at a time, starting with the distalmost stone first; attempts to extract multiple stones at once may result in impaction. 77 In cases of incomplete stone extraction or severe acute cholangitis, a biliary endoprosthesis should be placed to ensure adequate biliary drainage.…”