Identification of Variation in the Extrahepatic Arterial System of Thai Cadavers
Issued Date
2023-06-01
Resource Type
ISSN
07179367
eISSN
07179502
Scopus ID
2-s2.0-85169055542
Journal Title
International Journal of Morphology
Volume
41
Issue
3
Start Page
758
End Page
763
Rights Holder(s)
SCOPUS
Bibliographic Citation
International Journal of Morphology Vol.41 No.3 (2023) , 758-763
Suggested Citation
Phongsri R., Sricharoenvej S., Lanlua P., Baimai S. Identification of Variation in the Extrahepatic Arterial System of Thai Cadavers. International Journal of Morphology Vol.41 No.3 (2023) , 758-763. 763. doi:10.4067/S0717-95022023000300758 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/89866
Title
Identification of Variation in the Extrahepatic Arterial System of Thai Cadavers
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
Liver transplantation (LT) is the treatment of choice for decompensated liver cirrhosis. In the LT procedure, an adequate arterial supply is required for anastomosis to prevent postoperative necrosis and maintain hepatic parenchymal functions. The extrahepatic arterial system is primarily responsible for carrying oxygenated blood from the heart, 25 % of total cardiac output. Normally, the celiac trunk gives off the common hepatic artery. The common hepatic artery branches into the hepatic artery proper and supplies blood to the hepatic parenchyma. Recognizing the anatomical variations of the hepatic artery proper is essential for the planning and implementation of LT. The extrahepatic arterial variations are hard to study in live humans because of the limitations of human rights. Studying cadavers can solve this problem. This study investigates the distribution of normal, accessory, and replaced hepatic arteries proper by dissecting Thai cadavers (n = 152; males = 82 and females = 70) in the Gross Anatomy Laboratory at the Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University. The cadavers were preserved in a 10 % formaldehyde solution. The exclusion criteria for liver specimens were cirrhosis, liver carcinoma, including hepatocellular carcinoma and cholangiocarcinoma, and other liver masses. Accordingly, the extrahepatic arterial system was conventionally dissected and identified at the porta hepatis. The extrahepatic arterial system was identified and documented in terms of features of normal distribution and variations, such as accessory or replaced hepatic arteries. There were 75 % normal type, 18.42 % accessory left hepatic arteries (aLHA), 1.32 % replaced left hepatic arteries (rLHA), 0.66 % accessory right hepatic arteries (aRHA), 1.32 % of replaced right hepatic arteries (rRHA), 1.97 % of aLHA and aRHA, and 1.32 % aortic type. The identification of variations in the hepatic artery system is essential to detection of distribution patterns. This knowledge is crucial for promoting LT.