Compared with internal drainage group , pancreatic duct stent external drainage obviously reduced the morbidity of pancreatic fistula ( 13.6 % vs. 22.6 % ) , delayed gastric emptying ( 10.0 % vs. 27.5 % ) , abdominal infection ( 6.4 % vs. 19.3 % ) , intestinal obstruction ( 8.2 % vs. 20.2 % ) along with the overall complications ( 24.5 % vs. 41.3 % ) after PD ( ( 2 ) = 5.735 8 to 11.047 7 , P < 0.05 ) , and shortened the healing duration of pancreatic fistula ( ( 11.5 2.9 ) d vs. ( 20.1 5.7 ) d , t = 5.07 , P < 0.01 ) , 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 > 0.05 ) .