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Background  Postoperative pancreatic fistula (PF) is the main cause of operative mortality in patients who undergo pancreatoduodenectomy. Various pancreatoenteric anastomosis techniques have been reported to minimize the postoperative PF rate. However, the optimal method remains unknown. This study was performed to clarify the impact of pancreatojejunostomy on clinically relevant PF (CR-PF) between Blumgart anastomosis and Kakita anastomosis in patients with a soft pancreas.    Methods  In total, 620 consecutive patients underwent pancreatoduodenectomy at our institute from January 2010 to December 2016, and 282 patients with a soft pancreas were analyzed (Blumgart anastomosis,  n  = 110; Kakita anastomosis,  n  = 176). Short-term outcomes were assessed, and univariate and multivariate analyses of several clinicopathological variables were performed to analyze factors affecting the incidence of CR-PF.    Results  The CR-PF rate was 42.7% (122/286). The CR-PF rate was not significantly different between the Blumgart and Kakita groups (42.7% and 42.6%, respectively;  p  = 0.985). The morbidity rate (Clavien–Dindo grade ≥ IIIa) was 24.5% (70/286), and the operation-related mortality rate was 0.7% (2/286). In the multivariate analysis, male sex ( p  = 0.0245) and a body mass index of ≥22 kg/m 2  ( p  < 0.0001) were statistically significant risk factors for CR-PF.    Conclusions  The CR-PF rate was not significantly different between patients treated with Kakita versus Blumgart anastomosis.

Comparison of pancreatojejunostomy techniques in patients with a soft pancreas: Kakita anastomosis and Blumgart anastomosis