RESUMEN
OBJECTIVE: To discuss whether grade B pancreatic fistula after pancreaticoduodenectomy(PD)can be graded according to the severity and to provide reference for accurate evaluation and treatment.METHODS: The clinical data of 343 patients underwent PD surgery in the First Affiliated Hospital of Harbin Medical University from December2012 to June 2016 were retrospectively collected,among which 72 cases followed grade B pancreatic fistula. Grade B pancreatic fistula after operation was divided into severe groups of which imaging-assisted interventional therapy was needed and mild group. The total medical cost,length of hospital stay,drainage time,ICU transfer,introperitoneal effusion,introabdominal infection,abdominal hemorrhage,biliary fistula,delayed gastric emptying,number of types and incidence of complications except pancreatic fistula,incidence of pancreatic fistula as the most serious complications,postoperative morbidity index(PMI),fistula average complication burden(ACB)were statistically analyzed between two groups.RESULTS: Univariate analysis revealed that there were significant differences between two groups in the total medical cost(84,000 yuan vs. 132,000 yuan),length of hospital stay(29.0 days vs. 42.0 days),drainage time(20.5 d vs.53.0 d),introperitonal effusion rate(41.1% vs. 87.5%),introabdominal infection rate(10.7% vs. 43.8%),abdominal hemorrhage rate(7.1% vs. 56.3%),the number of other types of complications except pancreatic fistula(1 vs. 4),pancreatic fistula as the most serious complications(53.6% vs. 87.5%),PMI(0.22±0.08 vs. 0.37±0.00),ACB(0.19±0.08 vs. 0.37±0.00),and the P-values were less than 0.05 respectively.CONCLUSION: The severity of grade B pancreatic fistula of ISGPS update classification is heterogeneous,which can be divided into mild and severe groups. It provides a reference for precise and individualized treatment for grade B pancreatic fistula.