• case report
• duodenal obstruction
• gastroduodenal artery
• liquid embolic agent
• pseudoaneurysm
• transarterial embolization

Pancreatic pseudocyst may cause serious gastrointestinal complications including necrosis, infection, and perforation of the gastrointestinal tract wall, but massive gastric bleeding is very rare.

We report a rare case of a 49-year-old man with life-threatening gastric bleeding from a pseudoaneurysm of the splenic artery perforating the stomach induced by pancreatic pseudocyst. During hospitalization, gastroscopy revealed a bare blood vessel in an ulcer-like depression of the greater gastric curvature, and computed tomography scan confirmed a pancreatic pseudocyst invading part of the spleen and gastric wall of the greater curvature. Arteriography showed that the bare blood vessel originated from a pseudoaneurysm of the splenic artery. The bleeding was controlled by the trans-arterial embolization, the patient’s recovery was rapid and uneventful.

Massive gastrointestinal bleeding could be a rare complication of pancreatic pseudo aneurysm.

• Gastric bleeding
• Pseudoaneurysm of the arteria lienalis
• Pancreatic pseudocyst
• Trans-arterial embolization
• Case report

Gastroduodenal artery (GDA) pseudoaneurysm is a serious complication following pancreatic resection, associated with high morbidity and mortality rates. This review aimed to report the incidence of GDA pseudoaneurysm after pancreatic surgery, and describe clinical presentation and management.

MEDLINE and Embase were searched systematically for clinical studies evaluating postoperative GDA pseudoaneurysm. Incidence was calculated by dividing total number of GDA pseudoaneurysms by the total number of pancreatic operations. Additional qualitative data related to GDA pseudoaneurysm presentation and management following pancreatic resection were extracted and reviewed from individual reports.

Nine studies were selected for systematic review involving 4227 pancreatic operations with 55 GDA pseudoaneurysms, with a reported incidence of 1·3 (range 0·2–8·3) per cent. Additional data were extracted from 39 individual examples of GDA pseudoaneurysm from 14 studies. The median time for haemorrhage after surgery was at 15 (range 4–210) days. A preceding complication in the postoperative period was documented in four of 21 patients (67 per cent), and sentinel bleeding was observed in 14 of 20 patients (70 per cent). Postoperative complications after pseudoaneurysm management occurred in two‐thirds of the patients (14 of 21). The overall survival rate was 85 per cent (33 of 39).

GDA pseudoaneurysm is a rare yet serious cause of haemorrhage after pancreatic surgery, with high mortality. The majority of the patients had a preceding complication. Sentinel bleeding was an important clinical indicator.