Management of Postoperative Pancreatic Fistulas After Pancreaticoduodenectomy Using Open Drainage and Negative Pressure Wound Therapy With Instillation and Dwell Times.

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Introduction Postoperative pancreatic fistula (POPF) is a common complication of pancreatoduodenectomy (PD) that may cause lethal complications. Therefore, it is important to properly treat POPF and prevent its aggravation during the postoperative management of PD. We have used a combination of open drainage, in which the wound above the fluid collection is opened, and negative pressure wound therapy with instillation and dwell time (NPWTi-d) to manage POPF after PD. To evaluate the feasibility and efficacy of this combination treatment, we analyzed the outcomes of patients with POPF after PD. Methods Patients who underwent PD were reviewedand those who developed POPF were extracted and divided into three groups according to the management of POPF: N group (patients treated with open drainage and NPWTi-d), O group (patients treated with open drainage without NPWTi-d), and C group (patients treated with catheter drainage). The perioperative outcomes were compared among the three groups. Results During the study period, 133 patients underwent PD, out of which 39 (29%) developed POPF (≥grade B). Among the 39 patients with POPF, eight, four, and 27 were classified into the N, O, and C group, respectively. No mortality was observed in the patients with POPF. No severe complications were observed in the patients who underwent open drainage (N and O groups), while two patients in the C group developed severe complications. Among the patients who underwent open drainage, the N group tended to have a shorter postoperative hospital stay than the O group. Conclusions The current study suggests that open drainage safely and effectively healed POPF and NPWTi-d promoted wound closure. The combination of open drainage and NPWTi-d may prevent the aggravation of POPF, reduce failure to rescue, and shorten hospital stay after PD.