There are multiple variations of recurrent laryngeal nerve in relation to inferior thyroid artery and ligament of Berry which are important from a surgeon's point of view during thyroid surgeries Aim: The study aims to describe the clinically relevant variations of recurrent laryngeal nerve with respect to inferior thyroid artery and ligament of Berry in the cadavers. Material and Methods: 108 preserved cadavers (216 sides) were dissected within a span of 5 years i.e from 2008 to 2013. The position of recurrent laryngeal nerve in relation to inferior thyroid artery and ligament of Berry was noted and tabulated. Results: Our study revealed that in 59% of cadavers, the recurrent laryngeal nerve passed dorsal to inferior thyroid artery, 30% of cadavers, it coursed ventral to the artery, followed by 11% of cadavers where the nerve traversed through a loop formed by the branches of inferior thyroid artery. In 63.8% of cadavers, the nerve passed superficial to ligament of Berry, in 25% of cadavers the nerve passed through the ligament, followed by 11.1% of cadavers where the recurrent laryngeal nerve coursed deep to the ligament. Conclusion: A thorough knowledge of the laryngeal nerves and their anatomical variations is necessary for safe thyroid surgery.
With the increasing trends of coronary heart diseases, the knowledge of variations in the coronary arteries is of paramount importance when considering the various surgical procedures. This study was conducted to know the variations in coronary artery dominance pattern. 77 formalin fixed hearts were dissected. Origin and area of distribution of posterior interventricular artery and SA nodal artery were noted. In 64 hearts (83.11%) posterior inter ventricular artery was a branch of right coronary artery and in 13 hearts (16.88%) it was a branch of left circumflex artery. SA nodal artery was a branch of dominant artery in 46 hearts (59.74%). It arose from non-dominant artery in 29 hearts (37.66%). In the remaining 2 hearts (2.6%) SA nodal artery was a branch from both.
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