Clinicopathological Evaluation of Postpancreaticoduonenectomy Hemorrhage with Endovascular Treatment.

Introduction: Postpancreaticoduodenectomy hemorrhage (PPH) is a serious complication. Fatty or nonfibrous pancreas, or both, is a risk factor for pancreatic fistula. This study assessed various prognostic factors for interventional procedures for PPH, also focusing on the degree of pancreatic fatty infiltration/fibrosis evaluated histopathologically.

Material and methods: The participants were 29 patients with PPH who underwent endovascular treatment from September 2001 to March 2020. Univariate analysis was performed to determine whether the histopathological degree of pancreatic fatty infiltration/fibrosis and other factors were associated with complications and mortality after endovascular treatment for PPH.

Results: Of 39 treatment sessions overall, 38 (97%) achieved technical success and 34 (87%) had clinical success. In-hospital mortality occurred in five patients (17%). No association was found between the pancreatic fistula and the histopathological degree of pancreatic fatty infiltration/fibrosis. Fourteen patients with hemorrhagic shock before endovascular treatment included all five patients with in-hospital mortality, while the 15 patients without hemorrhagic shock survived (P = 0.017). A bleeding tendency was associated with complications after endovascular treatment for PPH (P = 0.033).

Conclusions: Although our results revealed no significant relation between the histopathological degree of pancreatic fatty infiltration/fibrosis and clinical success, including prognosis, endovascular treatment may be effective for PPH.