Morphometric Variations of the Left Gastric Artery in Thai Cadavers: A Tri-Parametric Analysis
Issued Date
2026-02-01
Resource Type
ISSN
07179367
eISSN
07179502
Scopus ID
2-s2.0-105036098564
Journal Title
International Journal of Morphology
Volume
44
Issue
1
Start Page
71
End Page
78
Rights Holder(s)
SCOPUS
Bibliographic Citation
International Journal of Morphology Vol.44 No.1 (2026) , 71-78
Suggested Citation
Baimai S., Suphanpaphakul T., Kaensa C., Sricharoenvej S., Phuangket R. Morphometric Variations of the Left Gastric Artery in Thai Cadavers: A Tri-Parametric Analysis. International Journal of Morphology Vol.44 No.1 (2026) , 71-78. 78. doi:10.4067/s0717-95022026000100071 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/116335
Title
Morphometric Variations of the Left Gastric Artery in Thai Cadavers: A Tri-Parametric Analysis
Author's Affiliation
Corresponding Author(s)
Other Contributor(s)
Abstract
This is the first cadaveric study in a Thai population that simultaneously evaluates the origin, caliber, and bifurcation angle of the left gastric artery (LGA) using a tri-parametric approach, providing population-specific morphometric data relevant to gastrointestinal and hepatobiliary surgery. The LGA is a key vessel supplying the stomach and distal esophagus, and anatomical variations may complicate surgical access and increase intraoperative risks. Thirty formalin-fixed adult Thai cadavers (14 males, 16 females) were dissected using standard anatomical techniques to expose the celiac trunk and trace the LGA. Parameters recorded included origin site, internal diameter, and bifurcation angle. Branching patterns were classified, with interobserver agreement assessed using Cohen’s kappa coefficient. Descriptive statistics, chi-square tests, Mann-Whitney U tests, and intra-class correlation coefficients were performed. Four distinct LGA origin types were identified: celiac trunk (80 %), abdominal aorta (10 %), splenic artery (3.3 %), and accessory left hepatic artery type (6.7 %). The mean bifurcation angle was 78.23 ± 21.46° (range: 35° - 120°), with 53.3 % between 61° - 90°. The mean internal diameter was 2.51 ± 0.66 mm, significantly larger in females than in males (p = 0.026). No sex differences were found in origin or bifurcation angle. This study provides novel morphometric data integrating LGA origin, caliber, and angulation in a single cohort. These findings underscore the importance of anticipating LGA variability to optimize surgical planning, risk stratification, and imaging interpretation, ultimately contributing to safer and more individualized gastrointestinal and hepatobiliary procedures.