Superior mesenteric artery syndrome and its associated gastrointestinal implications njambi mathenge department of anatomical sciences, school of medicine, st. Four major abdominal vessels that supply the gi tract are the celiac artery ca, superior mesenteric artery sma, inferior. The inferior mesenteric artery ima comes off the abdominal aorta a few inches below the takeoff of the superior mesenteric artery. The pattern of arrangements and distributions of the.
The patient will present with bloating after meals, nausea and vomiting and a feeling of abdominal fullness. Anatomic variants of the celiac, superior mesenteric, and inferior. The superior mesenteric artery is a major blood vessel in the digestive system. Superior mesenteric artery syndrome this is a rare disease that occurs when the duodenum is trapped between the abdominal aorta and the superior mesenteric artery, causing compression or complete obstruction. International journal of gastrointestinal intervention. Surgical anatomy of the superior mesenteric vessels. It originates on the anterior surface of the aorta at the level of. Pdf surgical anatomy of the superior mesenteric vessels. We examined the anatomy of these arteries in situ in 50 adult cadavers. The surgeon dissecting the base of the mesenterium, around the superior mesenteric vein smv and artery, is facing a complex tridimensional vascular anatomy and should be aware of the anatomical. Anatomic variants of the celiac, superior mesenteric, and. In about fifty percent 50% of cases, the marginal artery which is a result of the anastomosis of the branches of the sma and inferior mesenteric artery ima may. Anatomy, abdomen and pelvis, inferior mesenteric artery article.
Branching pattern of inferior mesenteric artery in a black african. Detailed knowledge of the anatomical variations of the visceral branches of the abdominal aorta is of extreme clinical importance, particularly, when performing. The embryologic basis, frequency in the literature, and clinical relevance of these variants are discussed. To analyze inferior mesenteric artery in fetuses through its site of origin, length, diameter, and variation of its branches. This artery branches off the abdominal aorta and supplies oxygenated blood to the pancreas and the lower parts of the. In human anatomy, the inferior mesenteric artery, often abbreviated as ima, is the third main branch of the abdominal aorta and arises at the level of l3. Superior mesenteric artery anatomy tutorial youtube. The inferior mesenteric artery arising from the superior mesenteric. The surgeon dissecting the base of the mesenterium, around the superior mesenteric vein smv and artery, is facing a complex tridimensional vascular anatomy and should be. The most common pattern of the inferior mesenteric artery was a left colic and a sigmoid artery arising from a common trunk with a second sigmoid artery from the inferior mesenteric artery in 28%. Unit 02 21 anat 503 l21 midgut hindgut andrew h lee ph.
The superior mesenteric artery is the second of the three major anterior branches of the abdominal aorta the other two are the coeliac trunk and inferior mesenteric artery. Among the issues that can arise here are superior mesenteric artery syndrome, in which the duodenum is compressed and blocked by the artery, leading to a range of dangerous symptoms, including sudden weight loss, nausea, abdominal pain, and others. Anatomy, abdomen and pelvis, superior mesenteric artery ncbi. Suspected aneurysm of the mesenteric, hepatic, or splenic arteries. If you want to learn about the arterial blood supply to the abdominal organs, this video provides a background on the superior mesenteric artery which supplies the midgut structures. Superior mesenteric artery syndrome and its associated. A right or common hepatic artery of superior mesenteric artery origin was observed in.