Yan Y, Chen C, Chen Y, Wu Y, Shi Z
Division of Cardiothoracic Surgery, Affiliated Hospital of Nantong Medical College, P.R. China.
Surg Radiol Anat. 1998;20(6):399-402. doi: 10.1007/BF01653129.
Cadaver studies were made to obtain more details about the arterial patterns in the thoracic and abdominal segments of the esophagus, with emphasis on the arterial supply to the lower esophageal sphincter (LES). The results showed that the inferior thoracic segment of the esophagus usually received blood supply from a single artery, with an average diameter of 1.42 +/- 0.49 mm (X +/- s), whereas the abdominal segment was commonly supplied by two arteries. The abdominal esophageal arteries coming from the left gastric artery were semi-circular in shape with an average diameter of 2.06 +/- 0.70 mm. From these semi-circular esophageal arteries, 3 to 8 smaller arteries branched off and penetrated into the muscle of the abdominal segment of the esophagus or anastomosed with arterial branches from the inferior thoracic segment. Thus, the blood supply of the abdominal segment was richer than that of the inferior thoracic segment. This richness of blood supply, characterized by semicircular esophageal arteries in the abdominal segment, may be important for the function of the LES.
进行尸体研究以获取有关食管胸段和腹段动脉模式的更多细节，重点是食管下括约肌（LES）的动脉供应。结果表明，食管胸下段通常由单一动脉供血，平均直径为1.42±0.49毫米（X±s），而腹段通常由两条动脉供血。来自胃左动脉的腹段食管动脉呈半圆形，平均直径为2.06±0.70毫米。从这些半圆形食管动脉发出3至8条较小的动脉分支，穿透食管腹段的肌肉或与胸下段的动脉分支吻合。因此，腹段的血液供应比胸下段更丰富。腹段以半圆形食管动脉为特征的这种丰富血液供应可能对LES的功能很重要。
