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. 2017:41:205-208.
doi: 10.1016/j.ijscr.2017.10.036. Epub 2017 Oct 26.

Endovascular treatment of ruptured pancreaticoduodenal artery aneurysm: The importance of collateral vessels. A case report

Gabriele Ricci  1 , Pascale Riu  2 , Grazia Maria Attinà  3 , Silvia Trombetta  3 , Pasquale Ialongo  4 , Carla Di Cosimo  3 , Rosaria Mancuso  3 , Pierluigi Marini  3
Affiliations

Endovascular treatment of ruptured pancreaticoduodenal artery aneurysm: The importance of collateral vessels. A case report

Gabriele Ricci et al. Int J Surg Case Rep. 2017.

Abstract

Introduction: True pancreaticoduodenal artery aneurysm occurrence is infrequent, but it is a fatal disease and accounts for accounts for <2% of all visceral aneurysms.

Presentation of case: A 62-year-old man with a two-day history of epigastric pain was admitted at emergency department. CT showed a retroperitoneal haematoma due to a 1.5cm posterior inferior PDA ruptured aneurysm. Angiography had been conducted immediately: both inflow and outflow of the aneurysm were embolized. Another CT scan had been conducted, which revealed residual flow inside the aneurysm sac fed by small collateral vessels. Sub-selective catheterization was repeated and definitive haemostasis was obtained by embolizing the collateral vessels. Postoperative course was uneventful. CT scan follow-up at 36 months showed no abnormalities.

Discussion: The incidence rate of pancreaticoduodenal artery aneurysm rupture has been estimated to be less than or equal to 65%. In the case of rupture the treatment is challenging and mortality had been reported up to 50%. Endovascular treatment showed superior results as compared to surgical treatment of aneurysms, especially in emergency settings.

Conclusion: The authors elucidate the importance of occlusion of inflow and outflow of the aneurysm in conjunction with the occlusion of collateral vessels to avert reperfusion of the sac. Simultaneous handling of celiac axis stenosis is still prone to controversy: no relapse of aneurysm have been reported in patients with celiac axis stenosis at long-term follow-up, simultaneous treatment should be reserved when angiography is alarming for likely hepatic or duodenal ischemia.

Keywords: Aneurysm; Celiac axis stenosis; Pancreaticoduodenal artery; Retroperitoneal haemorrhage; Transcatheter arterial embolization.

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Figures

Fig. 1
Fig. 1
Abdominal contrast–enhanced computer tomography (CT) shows a large retroperitoneal haematoma with extravasation from an artery adjacent to the dorsal side of the pancreatic head (white arrow).
Fig. 2
Fig. 2
Abdominal contrast–enhanced computer tomography (CT) shows residual extravasation of contrast inside the aneurysm sac after transcatheter embolization of inflow and outflow of the aneurysm with microcoils (white arrow).
Fig. 3
Fig. 3
Super-selective catheter angiography showing collateral vessels that feed the aneurysm sac after embolization of inflow and outflow of the aneurysm with microcoils (A). Definitive haemostasis was obtained by embolizing collateral vessels with microcoils and a cyanacrylate/lipiodol mixture (B).
Fig. 4
Fig. 4
Three-dimensional CT image showing luminal stenosis of the celiac axis and definitive occlusion of the aneurysm with microcoils.
See this image and copyright information in PMC

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