In the EPBD group , the incidence of post-ERCP pancreatitis , hyperamylasemia and overall patient complications was significantly higher for G2a ( post-ERCP pancreatitis : 6/36 vs 0/41 , P = 0.0217 ; hyperamylasemia : 11/36 vs 4/41 , P = 0.0215 ; overall patient complications : 18/36 vs 7/41 , P = 0.0029 ) .