35. Study of Superior Thyroid Artery and its Relationship with the External Laryngeal Nerve
Sabahat Zulfiqar1, Naveed Lodhi2 and Sobia Ramzan1
ABSTRACT
Objective: This study aims to study the origin of the superior thyroid artery and investigate the relationship of STA with the external laryngeal nerve.
Study Design: Cross Sectional Study
Place and Duration of Study: This study was conducted at the Sharif Medical and Dental College Lahore from the year March 2018 till November 2019.
Materials and Methods: We take 44 preserved human cadavers. We assure that the common carotid arteries of the cadevers were not damaged. Those cadavers with complete information of internal carotid artery (ICA) and external carotid artery were included for this research. Before surgical incision we inspect superior thyroid artery and facial artery of cadavers. Bilateral dissection was conducted on the anterior region of the neck to investigate the origin of STA. Distance from the upper pole of thyroid gland and measurement STA was notified from the point of EBSLN rotation.
Results: Out of 41 cadavers, 26 were female and 18 were male. In 71% of specimens of our study, we found STA emerge out from the exterior carotid artery, 39% belongs to the right side whereas 32% emerges from the left side of the external carotid artery. We did not find any significant relationship between sex and age of specimen which affects the relationship of STA and ELN.
Conclusion: We conclude that a huge diversity of the population has a huge impact on the relationship between STA and ELN.
Key Words: Superior thyroid artery, external carotid artery, common carotid artery, high sound pitch, external branch of the superior laryngeal nerve (EBSLN)
Citation of article: Zulfiqar S, Lodhi N, Ramzan S. Study of Superior Thyroid Artery and its Relationship with the External Laryngeal Nerve. Med Forum 2020;31(12):150-153.