Morphological study of recurrent laryngeal nerve in relation to thyroid gland

Mk, Khan; Rahman, Habibur; Hossain, Akram; Sultana, Shahin; Hasan, N; Mannan, S; Khalil, M

doi:10.3329/mmj.v15i2.43

Cited by 3 publications

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“…2). A total of 12 studies were performed on cadavers, and the other four were from intraoperative findings ( Table 1 [ [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]). A total of 4,198 RLNs (2,099 patients) were assessed for the statistical analysis.…”

Section: Resultsmentioning

confidence: 99%

The Anatomical Relationship of Inferior Thyroid Artery and Recurrent Laryngeal Nerve: A Review of the Literature and Its Clinical Importance

et al. 2020

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Background: Thyroidectomy is a quite common daily operation in general surgery. However, the anatomical structures of the region, mainly the relationship of recurrent laryngeal nerve (RLN) and inferior thyroid artery (ITA) makes the procedure challenging. The current review of the literature aims to report the anatomical variations of this relationship. Methods: The preferred reporting items for systemic reviews and meta-analyses (PRISMA) guidelines were used for the systematic review of the articles found after an extensive research through Pub-Med, Science Direct, EMBASE and Web of Science. A total of 16 studies were included for the statistical analysis. Results: The results showed that the most common type of RLN was posterior to the ITA. However, according to Higgins I 2 statistics the heterogeneity of the studies was quite high. Conclusions: The relationship between the RLN and the ITA is quite variable. Anatomical knowledge of the region is vital for attempting to eliminate the risk of injuring the nerve during thyroidectomy.

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Section: Resultsmentioning

confidence: 99%

The Anatomical Relationship of Inferior Thyroid Artery and Recurrent Laryngeal Nerve: A Review of the Literature and Its Clinical Importance

et al. 2020

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“…The characteristics of the studies included in the meta‐analysis are summarized in Table , which shows the prevalence of each type of RLN to ITA relationship. A total of 79 studies ( n = 14,269 nerves) were included, among which 18 were intraoperative, 60 were cadaveric, and 1 included both intraoperative and cadaveric groups. Among the intraoperative studies, 5 were prospective and 14 were retrospective.…”

Section: Resultsmentioning

confidence: 99%

Variable relationship of the recurrent laryngeal nerve to the inferior thyroid artery: A meta‐analysis and surgical implications

et al. 2016

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“…In most studies the left RLN was found posterior to the inferior thyroid artery compared to right RLN (2,4,5). In our analysis the RLN was posterior to the inferior thyroid artery in most cases (80% in left and 50%in right).…”

Section: Discussionmentioning

confidence: 69%

Surgical anatomy of the recurrent laryngeal nerve; a cross-sectional descriptive study

Sunanda¹,

Tilakeratne²,

Silva

2010

Galle Med J

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Abstractescribe the relationship of the recurrent laryngeal nerve (RLN) to the inferior thyroid artery and the ligament of Berry and to study its trajectory patients who underwent total thyroidectomy and six who underwent thyroid lobectomy were included. 46 RLNs including 24 right and 22 left, were studied. The relationship of the nerve to the inferior thyroid artery, ligament of Berry and its course between these two structures were recorded after the surgery. Data were tabulated and analyzed using spread sheet application.instances (61%; 80% of left and 50% of right), the nerve was posterior to the inferior thyroid artery while in 11 occasions (24%; 33% of right and 15% of left) the nerve traveled through the branches of the inferior thyroid artery. In four instances, (9%) the nerve was anterior to the inferior thyroid artery. In one instance, a single right non-recurrent laryngeal nerve (2%) was detected. The left inferior thyroid artery was absent in two patients. In 25 instances (54%), the nerve was in contact with the Berry's ligament while in 17 (37%) occasions the nerve traveled in between the ligament and tracheo-oesophagial groove (TO groove) and in 3 instances (7%), the nerve traveled through the ligament. The observed right non-recurrent nerve (2%) was superior to the ligament. The trajectory of the RLN from the inferior thyroid artery level to the ligament of Berry fell into eight categories. In 70% instances, RLN (77% of left and 63% of right) was in the tracheo-oesophageal groove at the inferior thyroid artery level.RLN is usually posterior to the inferior thyroid artery. Relationship between right RLN and the inferior thyroid artery is more variable than that between the left RLN and inferior thyroid artery. RLN is commonly in contact with the ligament of Berry. Most of the time (79%) the left RLN was found to be in the TO groove, deep to the inferior thyroid artery while the right RLN showed a more variable position. The trajectory of the nerve from the inferior thyroid artery level to the level of ligament of Berry was highly variable. Occasionally, the presence of the right non recurrent laryngeal nerve should be expected.

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Morphological study of recurrent laryngeal nerve in relation to thyroid gland

Cited by 3 publications

References 0 publications

The Anatomical Relationship of Inferior Thyroid Artery and Recurrent Laryngeal Nerve: A Review of the Literature and Its Clinical Importance

The Anatomical Relationship of Inferior Thyroid Artery and Recurrent Laryngeal Nerve: A Review of the Literature and Its Clinical Importance

Variable relationship of the recurrent laryngeal nerve to the inferior thyroid artery: A meta‐analysis and surgical implications

Surgical anatomy of the recurrent laryngeal nerve; a cross-sectional descriptive study

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