1 / 17

By: Ali Azizi Alborz Hedayati

By: Ali Azizi Alborz Hedayati. Superior Mesenteric Artery Syndrome. Superior Mesenteric Artery Syndrome. Male adult. Celiac trunk (ct); left gastric artery (lga); splenic artery (sa); common hepatic artery (cha); superior mesenteric artery (sma). Superior Mesenteric Artery Syndrome.

erna
Download Presentation

By: Ali Azizi Alborz Hedayati

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. By: Ali Azizi Alborz Hedayati Superior Mesenteric Artery Syndrome

  2. Superior Mesenteric Artery Syndrome Male adult. Celiac trunk (ct); left gastric artery (lga); splenic artery (sa); common hepatic artery (cha); superior mesenteric artery (sma)

  3. Superior Mesenteric Artery Syndrome

  4. Superior Mesenteric Artery Syndrome Compression of 3rd portion of duodenum between the aorta and superior mesenteric artery (SMA) Females >males Pathophysiology Narrowing of angle between SMA and aorta SMA usually forms an angle of 45 degrees with the aorta

  5. Superior Mesenteric Artery Syndrome Etiologies • Prolonged bed rest in supine position (body cast, whole-body burns, surgery) • Substantial and, frequently, rapid weight loss • Anorexia nervosa or malnutrition • Loss of abdominal muscle tone (as in pregnancy) • May be congenital • Seen in those with asthenic build • Exaggerated lumbar lordosis

  6. Superior Mesenteric Artery Syndrome Clinical findings • Epigastric pain • Nausea • Repetitive vomiting • Abdominal cramping • Typically findings are worst in supine position and may be relived by changing to the prone or left lateral decubitus positions • Associated with a higher than normal incidence of peptic ulcer disease and hyperchlorhydria

  7. Superior Mesenteric Artery Syndrome Imaging findings Usually requires upper GI or CT of abdomen for diagnosis • Megaduodenum • Pronounced dilation of 1 st and 2nd portion of duodenum and frequently stomach • Best seen in supine position • Compression of duodenum between aorta and SMA

  8. Upper gastrointestinal tract series shows dilatation of second portion of duodenum.

  9. Upper gastrointestinal series showing duodenal dilation (white arrow).

  10. Axial CT scans of the upper abdomen show a dilated 2nd portion of the duodenum (D)just proximal to a narrowed segment of the 3rd portion of the duodenum (green arrow)compressed between the superior mesenteric artery (red arrow)and the aorta (black arrow ) SMA>red

  11. Computed tomography shows narrowing between superior mesenteric artery and aorta, with dilatation of second portion of duodenum.

  12. Abdominal and pelvic CT scan showing duodenal compression (black arrow) by the abdominal aorta and the superior mesenteric artery

  13. Thank you

More Related