Left gastric artery

The left gastric artery is the smallest and first branch of the coeliac artery.  

It passes superiorly, giving off an oesophageal branch to the distal oesophagus, then enters the lesser omentum to pass along the lesser curvature of the stomach.  Anastomoses along the lesser curvature with the right gastric artery, and over the fundus with the short gastric arteries.

Approximately 85% of upper gastro-intestinal haemorrhage is from the left gastric artery territory. In a patient with significant upper GI bleeding but no active bleeding site identified on angiography, prophylactic embolisation of the left gastric artery may be performed. Upper GI embolisation is well tolerated because of the rich collateral blood supply.

Abdominal and pelvic anatomy
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Article information

rID: 5167
Section: Anatomy
Synonyms or Alternate Spellings:
  • Left gastric artery (LGA)

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Cases and figures

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    Case 1 : left gastric artery (selective angiogram)
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    Left hepatic arte...
    Case 2 : left gastric artery from the left hepatic artery
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