Objective: To evaluate technical aspects and clinical results of transcatheter arterial embolization (TAE) for delayed postoperative arterial bleeding after pancreatic surgery. Material and

Methods: There were 821 pancreatectomies between 2012 and 2020. Delayed bleeding occurred in 106 (12.9%) patients; 74 patients were included in the study. Previous pancreatic head resection was carried out in 75.7% of cases, pancreatic body resection - in 17.6% of cases, pancreatic tail resection - in 6.8% of patients. Primary endpoint was technical success of TAE, secondary endpoints - complications after TAE, as well as recurrent bleeding after embolization.

Results: Angiography of celiac-mesenteric arterial system was performed in 74 patients (91 procedures). The most common sources of bleeding were gastroduodenal and superior mesenteric arteries (35.7%), jejunal arteries (13.1%), common hepatic artery (11.9%). Combination of embolization agents was applied for TAE (metal coils and non-calibrated PVA particles, 48.6%). In 11 (14.9%) patients, we applied stent-grafts. Technical success rate was 100%. Recurrent bleeding occurred in 13 (17.6%) patients. In-hospital mortality was 12.2% (n=9).

Conclusion: TAE is an effective treatment procedure in patients with arrosive bleeding. This method is characterized by high technical efficiency and low in-hospital mortality, but it does not affect recurrence of bleeding.