Inferior pancreaticoduodenal artery explained

Inferior pancreaticoduodenal artery
Latin:	arteriae pancreaticoduodenales inferiores
Branchfrom:	Superior mesenteric artery
Vein:	Pancreaticoduodenal veins

The inferior pancreaticoduodenal artery (the IPDA) is a branch of the superior mesenteric artery. It supplies the head of the pancreas, and the ascending and inferior parts of the duodenum. Rarely, it may have an aneurysm.

Structure

The inferior pancreaticoduodenal artery is a branch of the superior mesenteric artery. This occurs opposite the upper border of the inferior part of the duodenum. As soon as it branches, it divides into anterior and posterior branches. These run between the head of the pancreas and the lesser curvature of the duodenum. They then join (anastomose) with the anterior and posterior branches of the superior pancreaticoduodenal artery.

Variation

The inferior pancreaticoduodenal artery may branch from the first intestinal branch of the superior mesenteric artery rather than directly from it.

Function

The inferior pancreaticoduodenal artery distributes branches to the head of the pancreas and to the ascending and inferior parts of the duodenum.^{[1] [2]}

Clinical significance

Aneurysm

Very rarely, the inferior pancreaticoduodenal artery may have an aneurysm.^[3] It may be caused by certain medical interventions, major trauma, pancreatitis, cholecystitis, and vasculitis and other infections. A ruptured aneurysm causes abdominal pain, and haemorrhage leads to hypotension. It may be treated with open abdominal surgery. It may also be treated with endovascular surgery, such as a coil.^[4] These aneurysms represent around 2% of aneurysms in visceral arteries of the abdomen.^[5] Pseudoaneurysm may also occur.^[6]

History

The inferior pancreaticoduodenal artery may be more simply known by the acronym IPDA.

Notes and References

1. Book: Drake RL, Vogl W, Tibbitts AW, Richardson P . Gray's anatomy for students. 2005. Elsevier/Churchill Livingstone. Philadelphia. 978-0-8089-2306-0. 299.
2. Bertelli E, Di Gregorio F, Bertelli L, Civeli L, Mosca S . The arterial blood supply of the pancreas: a review. III. The inferior pancreaticoduodenal artery. An anatomical review and a radiological study . Surgical and Radiologic Anatomy . 18 . 2 . 67–74 . 1996-06-01 . 8782310 . 10.1007/BF01795221 . 1993731 .
3. Kalva SP, Athanasoulis CA, Greenfield AJ, Fan CM, Curvelo M, Waltman AC, Wicky S . Inferior pancreaticoduodenal artery aneurysms in association with celiac axis stenosis or occlusion . European Journal of Vascular and Endovascular Surgery . 33 . 6 . 670–5 . June 2007 . 17276102 . 10.1016/j.ejvs.2006.12.021 . free .
4. Peterson. Brian G.. Resnick. Scott A.. Eskandari. Mark K.. 2003-12-01. Coil embolization of an inferior pancreaticoduodenal artery aneurysm associated with celiac artery occlusion . Cardiovascular Surgery. en. 11. 6. 515–519. 10.1016/S0967-2109(03)00131-5. 14627975. 0967-2109.
5. Klonaris C, Psathas E, Katsargyris A, Lioudaki S, Chatziioannou A, Karatzas T . Multiple aneurysms of the inferior pancreaticoduodenal artery: a rare complication of acute pancreatitis . Case Reports in Vascular Medicine . 2013 . 621350 . 2013-02-24 . 23509663 . 3595677 . 10.1155/2013/621350 . free .
6. Xu QD, Gu SG, Liang JH, Zheng SD, Lin ZH, Zhang PD, Yan J . Inferior pancreaticoduodenal artery pseudoaneurysm in a patient with calculous cholecystitis: A case report . World Journal of Clinical Cases . 7 . 18 . 2851–2856 . September 2019 . 31616702 . 10.12998/wjcc.v7.i18.2851 . 6789396 . free .