Compared with internal drainage group , pancreatic duct stent external drainage obviously reduced the morbidity of pancreatic fistula ( @ % vs. @ % ) , delayed gastric emptying ( @ % vs. @ % ) , abdominal infection ( @ % vs. @ % ) , intestinal obstruction ( @ % vs. @ % ) along with the overall complications ( @ % vs. @ % ) after PD ( ( @ ) = @ @ to @ @ , P < @ ) , and shortened the healing duration of pancreatic fistula ( ( @ @ ) d vs. ( @ @ ) d , t = @ , P < @ ) , while there was no significant difference in the intra-operative blood loss , operative duration , post-operative hospital stay and mortality rate , etc between the two groups ( P > @ ) .