scholarly journals The Nonrecurrent Laryngeal Nerve Without Abnormal Subclavian Artery: Report of Two Cases and Review of the Literature

2021 ◽  
pp. 014556132110565
Author(s):  
Ying Lu ◽  
ChengHui Deng ◽  
Ning Lan ◽  
PinXiu Wang ◽  
HuaZe Xi ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Vagus Nerve ◽  
Subclavian Artery ◽  
Thyroid Surgery ◽  
Laryngeal Nerve ◽  
Inferior Laryngeal Nerve ◽  
Review Of The Literature ◽  
Nonrecurrent Inferior Laryngeal Nerve ◽  
Nonrecurrent Laryngeal Nerve ◽  
Neural Monitoring

As a variant of recurrent inferior laryngeal nerve (RILN), the nonrecurrent inferior laryngeal nerve (NRILN) is closely related to the occurrence of abnormal subclavian artery (ASA). The nonrecurrent inferior laryngeal nerve has been found in patients without arterial abnormalities, which is seen in the coexistence of NRILN and RILN, but it is easily confused with sympathetic-inferior laryngeal anastomosis branch (SILAB). We encountered 2 right NRILN patients without ASA during thyroid surgery. This article summarizes the characteristics of these cases and proposes methods to distinguish the coexistence of NRILN and RILN from SILAB. So far, 11 articles have reported 16 cases of NRILN without arterial abnormalities. In patients without artery abnormality, the vagus nerve could send out a descending branch NRILN at the bifurcation of the carotid artery and enter the larynx after anastomosis with RILN. Adequate dissection of the carotid sheath may avoid confusion with SILAB, and neural monitoring is also expected to provide a reference for the identification.

scholarly journals Nonrecurrent Laryngeal Nerve: A Case Report and Literature Review

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Enrico Maria Amadei ◽  
Christopher Fabbri ◽  
Marco Trebbi
Keyword(s):  
Case Report ◽  
Literature Review ◽  
Thyroid Surgery ◽  
Recent Literature ◽  
Follicular Adenoma ◽  
Laryngeal Nerve ◽  
Inferior Laryngeal Nerve ◽  
Anatomical Variant ◽  
Nonrecurrent Laryngeal Nerve

We report the case of a patient submitted to a right hemithyroidectomy for a follicular adenoma, when we found a nonrecurrent laryngeal nerve. This is a really rare anatomical presentation that can seriously compromise the integrity and preservation of the inferior laryngeal nerve during thyroid surgery. We describe how we found and managed this anatomical variant and we conduct a review of the most recent Literature about nonrecurrent laryngeal nerve.

Latencies Shorter than 3.5 ms After Vagus Nerve Stimulation Signify a Nonrecurrent Inferior Laryngeal Nerve Before Dissection

2011 ◽  
Vol 253 (6) ◽  
pp. 1172-1177 ◽  
Author(s):  
Michael Brauckhoff ◽  
Andreas Machens ◽  
Carsten Sekulla ◽  
Kerstin Lorenz ◽  
Henning Dralle
Keyword(s):  
Vagus Nerve ◽  
Nerve Stimulation ◽  
Vagus Nerve Stimulation ◽  
Laryngeal Nerve ◽  
Inferior Laryngeal Nerve ◽  
Nonrecurrent Inferior Laryngeal Nerve

Nonrecurrent Laryngeal Nerve: A Case Report and Literature Review

2020 ◽  
Vol 2 (1) ◽  
pp. 01-04
Author(s):  
Enrico Amadei
Keyword(s):  
Case Report ◽  
Literature Review ◽  
Thyroid Surgery ◽  
Recent Literature ◽  
Follicular Adenoma ◽  
Laryngeal Nerve ◽  
Inferior Laryngeal Nerve ◽  
Anatomical Variant ◽  
Nonrecurrent Laryngeal Nerve

We report the case of a patient submitted to a right hemithyroidectomy for a follicular adenoma, when we found a nonrecurrent laryngeal nerve. This is a really rare anatomical presentation that can seriously compromise the integrity and preservation of the inferior laryngeal nerve during thyroid surgery. We describe how we found and managed this anatomical variant and we conduct a review of the most recent Literature about nonrecurrent laryngeal nerve.

Efficient, effective, safe procedure to identify nonrecurrent inferior laryngeal nerve during thyroid surgery

Head & Neck ◽  
2015 ◽  
Vol 38 (4) ◽  
pp. 573-577 ◽  
Author(s):  
Akihito Watanabe ◽  
Masanobu Taniguchi ◽  
Yuki Kimura ◽  
Suguru Ito ◽  
Masao Hosokawa ◽  
...  
Keyword(s):  
Thyroid Surgery ◽  
Laryngeal Nerve ◽  
Safe Procedure ◽  
Inferior Laryngeal Nerve ◽  
Nonrecurrent Inferior Laryngeal Nerve

Non-recurrent inferior laryngeal nerve in thyroid surgery: report of three cases and review of the literature

2004 ◽  
Vol 118 (2) ◽  
pp. 139-142 ◽  
Author(s):  
Bassam Abboud ◽  
Rony Aouad
Keyword(s):  
Thyroid Surgery ◽  
Vocal Fold ◽  
Laryngeal Nerve ◽  
Aberrant Right Subclavian Artery ◽  
Inferior Laryngeal Nerve ◽  
Multinodular Goitre ◽  
Review Of The Literature ◽  
Operative Morbidity ◽  
Increased Risk ◽  
The Right

The non-recurrent inferior laryngeal nerve (NRILN) is a nerve anomaly that can be associated with an increased risk of vocal fold paralysis. The purpose of this study wasto report three new cases of this anomaly, underline the necessity of recognizing its possibility for the prevention of intra-operative nerve damage and a review of the literature.Three cases of thyroid surgery associated with right NRILN are reported.Two patients underwent bilateral thyroidectomy for a multinodular goitre and for a toxic multinodular goitre respectively. The third patient had a right lobectomy and isthmectomy for a thyroid nodule. All patients had identification of the recurrent laryngeal nerve on the left sideand NRILN on the right side. The diagnosis of the NRILN was made per-operatively on all cases. A post-operative computed tomography (CT) scan in two patients, showed a retrooesophageal aberrant right subclavian artery. Post-operatively, all patients had normal vocal fold function on laryngoscopy.The NRILN is a rare anomaly but overlooking its possibility may lead to severe operative morbidity. This is an additional argument in favour of systematic dissection of the recurrent inferior laryngeal nerve during thyroid surgery.

scholarly journals Two Cases of Nonrecurrent Inferior Laryngeal Nerve －Different Branching Levels from Vagus Nerve－

2005 ◽  
Vol 27 (1) ◽  
pp. 89-95
Author(s):  
Tetsumi KONISHI ◽  
Asami FUKUSHIMA ◽  
Shu WATANABE ◽  
Kentaro MATSUMOTO ◽  
Koji KADOWAKI ◽  
...  
Keyword(s):  
Vagus Nerve ◽  
Laryngeal Nerve ◽  
Inferior Laryngeal Nerve ◽  
Nonrecurrent Inferior Laryngeal Nerve

scholarly journals Non-Recurrent Laryngeal Nerve - A Surgical Challenge

2020 ◽  
Vol 7 (43) ◽  
pp. 2508-2510
Author(s):  
Shib Shankar Paul ◽  
Subrata Kumar Sahu ◽  
Indranil Chatterjee
Keyword(s):  
Vagus Nerve ◽  
Recurrent Laryngeal Nerve ◽  
Subclavian Artery ◽  
Thyroid Surgery ◽  
Laryngeal Nerve ◽  
Aberrant Right Subclavian Artery ◽  
Fascial Spaces ◽  
The Right ◽  
Tracheoesophageal Groove ◽  
Intrinsic Muscles

Both the cases discussed here had right sided NRLN, out of which one had associated aberrant right subclavian artery. None had iatrogenic nerve palsy. Dissection was difficult as during the routine procedure of dissection, the nerve was not found in its usual route and was found that the right laryngeal nerve was not recurrent and originated directly from the vagus nerve. The non-recurrent laryngeal nerve (NRLN) is a rare embryologically derived variant of the recurrent laryngeal nerve and is found in 0.25 to 0.99% of patients who undergo thyroid surgery. On the right side, NRLN is found in 0.3% to 0.8% of patients and it is extremely rare on the left (0.004%).[1-2] The right NRLN is found to be associated with an aberrant right subclavian artery (86.7%) In experienced hands, meticulous dissection in the region of the tracheoesophageal groove will result in identification of RLN. In any case, if the nerve is not seen / found longitudinally along the tracheoesophageal groove, then dissecting transversely along the fascial spaces between the carotid sheath and the larynx, will allow identification of the presence of NRLN. Recurrent laryngeal nerve is a branch of the vagus nerve that is associated with both motor function and sensation of the larynx. It supplies all the intrinsic muscles of the larynx except the cricothyroid muscles. The non-recurrent laryngeal nerve (NRLN) is a rare embryologically derived variant of the recurrent laryngeal nerve and occurs in 0.25 to 0.99% of patients who undergo thyroid surgery and was first reported by Steadman in 1823.[3] on the right side, NRLN is found in 0.3% to 0.8% of patients and on the left side, it is extremely rare (0.004%).[1-2] The right NRLN is found to be associated with an aberrant right subclavian artery (86.7%).[1],[4] The NRLN is usually an unexpected surgical discovery, specifically during thyroidectomy. Hence, adequate anatomic knowledge of the normal course and variations/types of NRLN, and careful dissection during surgery is necessary to prevent iatrogenic injury to the nerve. We are reporting two cases of NRLN, which were identified while performing total thyroidectomy in patients diagnosed with papillary ca thyroid.

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