[Analysis of the Relationship between the Change of Drain Amylase Value and Postoperative Pancreatic Fistula after Pancreaticoduodenectomy].

To diagnose postoperative pancreatic fistula(POPF)after pancreaticoduodenectomy(PD)during early post operative days, we evaluatedwhether a change in drain amylase value(DAV), WBC value, or CRP value predicted clinically significant POPF. One hundred thirty patients underwent substomach preserving PD(SSPPD)from 2005 to 2016 in our institution andwe examinedDAV, WBC, andCRP values at POD 1, 3, and 5. Seventy-five patients(57.7%)were equivalent to ISGPF grade A at POD 3.We analyzedthese 75 cases by following 5 factors(DAV at POD 3>1,500 U/L, DAV at POD 5>1,000 U/L,WBC value at POD 5≤9,000/mL, DAV of POD 5 decreased to 1/3 from DAV of POD 3, CRP value not improved≥50%from POD 3 to 5) andwere concernedwith the crisis of the grade B/C POPF at final diagnosis after POD 5. In conclusion, DAV of POD 5 decreased to 1/3 from DAV of POD 3, andthe CRP value having not improved(≥50%from POD 3 to 5)were significant risk factors for POPF grade B andC by Cox proportional hazard models.