Abdalla Mahil, Mohammed Najla, Abdallah Ragda, Ahmed Marwan K, Ismaiel Muaaz, Abdelrahim Mohanad, Salih Abrar, Yousif Eram, Abdalla Abdelmohaymin A, Abdelrahim Mohamed A
Physiology, Neuroscience, and Behavioral Sciences, St. George's University School of Medicine, True Blue, GRD.
Neurological Surgery, National Centre of Neurological Sciences, Khartoum, SDN.
Cureus. 2024 Oct 9;16(10):e71120. doi: 10.7759/cureus.71120. eCollection 2024 Oct.
Variations in the carotid arterial system significantly impact atherosclerosis's clinical and surgical management, which predominantly occurs at arterial bifurcations.
This study aimed at evaluating anatomical variations in the bifurcation levels of the common carotid artery (CCA) and the superior thyroid artery (STA), emphasizing clinical relevance.
This was an observational cross-sectional study conducted in June 2021 using 32 embalmed cadavers of adult age from medical schools in Khartoum, Sudan. Sixty-four carotids were examined, noting the levels of CCA bifurcation and STA origin, and their symmetry across both sides of the body. Results: Among the cadavers studied, CCA bifurcation most commonly occurred at the superior border of the thyroid cartilage (46.9%), followed by the body of the hyoid bone (40.1%). The STA predominantly originated from the external carotid artery (ECA) (65.6%). Conclusion: No significant correlation was found between the bifurcation levels of the CCA and the origins of the STA. Bilateral symmetry in the bifurcation of the CCA and the origin of the STA was observed in most cases. The study highlights notable variations in the anatomy of the carotid arteries. These findings suggest that pre-surgical imaging and careful planning are crucial to accommodate anatomical diversities.
颈动脉系统的变异对动脉粥样硬化的临床和外科治疗有重大影响，动脉粥样硬化主要发生在动脉分叉处。
本研究旨在评估颈总动脉（CCA）和甲状腺上动脉（STA）分叉水平的解剖变异，并强调其临床相关性。
这是一项于2021年6月进行的观察性横断面研究，使用了来自苏丹喀土穆医学院的32具成年防腐尸体。检查了64条颈动脉，记录CCA分叉和STA起源的水平，以及它们在身体两侧的对称性。结果：在研究的尸体中，CCA分叉最常见于甲状软骨上缘（46.9%），其次是舌骨体（40.1%）。STA主要起源于颈外动脉（ECA）（65.6%）。结论：未发现CCA分叉水平与STA起源之间存在显著相关性。在大多数情况下，观察到CCA分叉和STA起源的双侧对称性。该研究突出了颈动脉解剖结构的显著变异。这些发现表明，术前成像和仔细规划对于适应解剖学差异至关重要。
