What nerve must be protected during a thyroidectomy?

What nerve must be protected during a thyroidectomy?

Both the RLN and the EBSLN are anatomically close to the thyroid and are therefore at risk of injury during thyroidectomy. These 2 laryngeal nerves must be carefully preserved during surgery to ensure that the function of the vocal cord is not impaired.

What is beahrs triangle?

Beahrs’ triangle (Fig. 1) is bounded by common carotid artery as base, inferior thyroid artery superi- orly and RLN as lower arm of triangle. Recognizing the boundaries of triangle posterior to thyroid after retracting the ipsilateral thyroid lobe medially, helps in avoiding injury to RLN.

What is pyramidal lobe of thyroid?

The pyramidal lobe of thyroid (also known as Lalouette pyramid 5) is a normal anatomic variant representing a superior sliver of thyroid tissue arising from the thyroid isthmus. It is seen as a third thyroid lobe and is present in 10-30% of the population. It represents a persistent remnant of the thyroglossal duct.

What is non recurrent laryngeal nerve?

A nonrecurrent laryngeal nerve (NRLN) is a rare anatomical variation in which the nerve enters the larynx directly from the cervical vagus nerve, without descending to the thoracic level [2]. It has been reported in 0.3-0.8% of the population on the right side, being extremely rare on the left side (0.004%) [3].

What is zuckerkandl tubercle?

Objective: The Tubercle of Zuckerkandl (TZ), which is the remant of the lateral thyroid process, is an important ana- tomic structure that serves as a reliable landmark for the recurrent laryngeal nerve in thyroid surgery. Furthermore, removal of the TZ is critical for the adequate performance of a total thyroidectomy.

What nerve is at greatest risk during a thyroidectomy?

The external branch of the superior laryngeal nerve (SLN) is probably the nerve most commonly injured in thyroid surgery, with an injury rate estimated at 0-25%.

What is Simon triangle?

Simon’s triangle: This another triangle described to identify the RLN. Anterior border is formed by the recurrent. laryngeal nerve, posterior by the common carotid. artery and base is formed by the inferior thyroid. artery.

How common is a pyramidal lobe of the thyroid?

10-30%
The pyramidal lobe of thyroid (also known as Lalouette pyramid 5) is a normal anatomic variant representing a superior sliver of thyroid tissue arising from the thyroid isthmus. It is seen as a third thyroid lobe and is present in 10-30% of the population.

What happens when the recurrent laryngeal nerve is damaged?

Injury to the recurrent laryngeal nerve has the potential to cause unilateral vocal cord paralysis. Patients with this typically complain of new-onset hoarseness, changes in vocal pitch, or noisy breathing.

What is the organ of zuckerkandl?

The organ of Zuckerkandl is a chromaffin body derived from neural crest located at the bifurcation of the aorta or at the origin of the inferior mesenteric artery. It can be the source of a paraganglioma. The abdominal aorta and its branches.

Why does thyroid move with Deglutition?

The thyroid gland and all thyroid swelling move with the swallowing/deglutition because the thyroid is attached to the cartilage of the larynx by the suspensory ligament of Berry. Ligament of Berry also prevents the thyroid gland from sinking into the mediastinum.

What is the most common post op complication of thyroidectomy?

Hypocalcemia and recurrent laryngeal nerve injury are the two most common post-thyroidectomy complications.