Which Recurrent Laryngeal Nerve Is More Vulnerable To Damage?

Why is the left recurrent laryngeal nerve more vulnerable to damage?

Relationship of the recurrent nerve to the inferior thyroid artery.

The nerve often passes anterior, posterior, or through the branches of the inferior thyroid artery.

Medial traction of the thyroid lobe often lifts the nerve anteriorly, thereby making it more vulnerable..

How can you prevent injury to recurrent laryngeal nerves?

Routine exposure of RLN can effectively prevent the injury in patients receiving the second or multiple surgeries. Early interventions for RLN injury include mainly early discovery, early exploration and early anastomosis, and the function of RLN in some patients can recover completely.

What nerve controls the larynx?

The recurrent laryngeal nerve (RLN) branches off the vagus nerve and supplies function to some muscles of the larynx (voice box).

What is laryngeal nerve palsy?

Laryngeal nerve palsy: Paralysis of the larynx (voice box) caused by damage to the recurrent laryngeal nerve or its parent nerve, the vagus nerve, which originates in the brainstem and runs down to the colon.

Can a paralyzed vocal cord repair itself?

If your vocal cord paralysis symptoms don’t fully recover on their own, surgical treatments may be offered to improve your ability to speak and to swallow. Surgical options include: Bulk injection. Paralysis of the nerve to your vocal cord will probably leave the vocal cord muscle thin and weak.

Is laryngeal paralysis progressive?

“Laryngeal paralysis” is a progressive disease that leads to suffocation. A severe cyanotic episode can lead to death. “Polyneuropathy” means multiple nerves are affected, most notably in the larynx (recurrent laryngeal nerves), but also in the esophagus and hind legs.

Where does the recurrent laryngeal nerve run?

Most commonly (approximately 61%), the recurrent laryngeal nerve ascends posterior to the inferior thyroid artery. The recurrent laryngeal nerve can also ascend anterior (approximately 32.5%) to or in between the branches of the inferior thyroid artery (approximately 6.5%).

What causes recurrent laryngeal nerve paralysis?

In 134 patients with recurrent laryngeal nerve paralysis, the left recurrent nerve was most commonly involved. Malignant neoplasms of the lung and pulmonary tuberculosis were the most frequent causes of the paralysis.

What happens when the recurrent laryngeal nerve is damaged?

Injury to the recurrent laryngeal nerves can result in a weakened voice (hoarseness) or loss of voice (aphonia) and cause problems in the respiratory tract. Injury to the nerve may paralyze the posterior cricoarytenoid muscle on the same side.

How do you know if you have a recurrent laryngeal nerve?

The Tubercle of Zuckerkandl marks the posterolateral aspect of the thyroid lobe and is most often found lateral to the recurrent laryngeal nerve. The tubercle can be found in 80% of thyroids and when found can lead directly to the recurrent laryngeal nerve, as 93% of the nerves are found medial to this tubercle.

Is there a right recurrent laryngeal nerve?

The right recurrent laryngeal nerve arises from in front of the subclavian artery. It then ascends alongside the trachea posterior to the common carotid artery. At the inferior pole of the thyroid gland, the recurrent laryngeal nerve is closely related to the inferior thyroid artery.

What is the function of the recurrent laryngeal nerve?

The recurrent laryngeal nerve (RLN) branches off the vagus nerve (cranial nerve X) and has an indirect course through the neck. It supplies innervation to all of the intrinsic muscles of the larynx, except for the cricothyroid muscles, as well as sensation to the larynx below the level of the vocal cords.