Non-Recurrent Laryngeal Nerve

Buła, Grzegorz; Mucha, Ryszard; Paliga, Michał; Koziołek, Henryk; Niedzielski, Zbigniew; Gawrychowski, Jacek

doi:10.1515/pjs-2015-0066

Cited by 6 publications

(9 citation statements)

References 13 publications

(8 reference statements)

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“…A total of 53 studies ( n = 53,577 total nerves; 33,571 Right RLNs and 20,006 Left RLNs) were included: 35 intraoperative, 17 cadaveric and 1 imaging (CT) (Reed, 1943; Wade, 1955; Hunt, Poole & Reeve, 1968; Stewart, Mountain & Colcock, 1972; Skandalakis et al, 1976; Papadatos, 1978; Proye et al, 1982; Flament, Delattre & Palot, 1983; Henry et al, 1988; Menck, Grüber & Lierse, 1990; Lekacos et al, 1992; Freschi et al, 1994; Moreau et al, 1998; Sasou, Nakamura & Kurihara, 1998; Sturniolo et al, 1999; Campos & Henriques, 2000; Raffaelli, Iacobone & Henry, 2000; Watanabe et al, 2001; Watanabe et al, 2016; Monfared, Gorti & Kim, 2002; Page, Foulon & Strunski, 2003; Hermans et al, 2003; Ardito et al, 2004; Toniato et al, 2004; Spartà et al, 2004; Sciumè et al, 2005; Shindo, Wu & Park, 2005; Beneragama & Serpell, 2006; Maranillo et al, 2008; Makay et al, 2008; Serpell, Yeung & Grodski, 2009; Lee et al, 2009; Sunanda, Tilakeratne & De Silva, 2010; Shao et al, 2010; Wang et al, 2011; Kaisha, Wobenjo & Saidi, 2011; Kandil et al, 2011; Pradeep, Jayashree & Harshita, 2012; Chiang et al, 2012; Tang et al, 2012; Benouaich et al, 2012; Asgharpour et al, 2012; Silva, Siqueira & Arruda, 2013; Donatini, Carnaille & Dionigi, 2013; Satoh et al, 2013; Cai et al, 2013; Hong, Park & Yang, 2014; Yang et al, 2014; Han, Bai & Lu, 2015; Dolezel et al, 2015; Iacobone et al, 2015; Buła et al, 2015; Ngo Nyeki et al, 2015; Barczyński et al, 2015). The dates of the included studies spanned the period from 1943 to 2016.…”

Section: Resultsmentioning

confidence: 99%

The Non-Recurrent Laryngeal Nerve: a meta-analysis and clinical considerations

Henry

Sanna

Graves

et al. 2017

PeerJ

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BackgroundThe Non-Recurrent Laryngeal Nerve (NRLN) is a rare embryologically-derived variant of the Recurrent Laryngeal Nerve (RLN). The presence of an NRLN significantly increases the risk of iatrogenic injury and operative complications. Our aim was to provide a comprehensive meta-analysis of the overall prevalence of the NRLN, its origin, and its association with an aberrant subclavian artery.MethodsThrough March 2016, a database search was performed of PubMed, CNKI, ScienceDirect, EMBASE, BIOSIS, SciELO, and Web of Science. The references in the included articles were also extensively searched. At least two reviewers judged eligibility and assessed and extracted articles. MetaXL was used for analysis, with all pooled prevalence rates calculated using a random effects model. Heterogeneity among the included studies was assessed using the Chi2 test and the I2 statistic.ResultsFifty-three studies (33,571 right RLNs) reported data on the prevalence of a right NRLN. The pooled prevalence estimate was 0.7% (95% CI [0.6–0.9]). The NRLN was found to originate from the vagus nerve at or above the laryngotracheal junction in 58.3% and below it in 41.7%. A right NRLN was associated with an aberrant subclavian artery in 86.7% of cases.ConclusionThe NRLN is a rare yet very clinically relevant structure for surgeons and is associated with increased risk of iatrogenic injury, most often leading to temporary or permanent vocal cord paralysis. A thorough understanding of the prevalence, origin, and associated pathologies is vital for preventing injuries and complications.

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Section: Resultsmentioning

confidence: 99%

The Non-Recurrent Laryngeal Nerve: a meta-analysis and clinical considerations

Henry

Sanna

Graves

et al. 2017

PeerJ

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“…The incidence of the right NRLN is 0.3-1.6% and that of the left NRLN is about 0.04% [3]. NRLN often accompanies abnormal blood vessel development and is closely related to the absence of the brachiocephalic trunk or ARSA.…”

Section: Discussionmentioning

confidence: 99%

Three concurrent variations of the aberrant right subclavian artery, the non-recurrent laryngeal nerve and the right thoracic duct

Lee

Won

et al. 2016

Folia Morphol

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“…5 The incidence of the right NRLN is 0.3-1.6% and that of the left NRLN is about 0.04%. 6 In terms of embryology, the presence of NRLN is closely related to sub-clavian artery anomaly. Normally, the right sub-clavian artery originates from the 4 th arch structure and the RLN originates from the 6 th arch structure.…”

Section: Discussionmentioning

confidence: 99%

Incidental presence of non recurrent laryngeal nerve in our series of thyroidectomy

Bage

Muthuvel

Akshaya

et al. 2019

Int J Otorhinolaryngol Head Neck Surg

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Background: Recurrent laryngeal nerve (RLN) injury is one of the most important and preventable complications of thyroidectomy which is the cause of post-operative iatrogenic vocal cord paralysis. The non-recurrent laryngeal nerve (NRLN), which is found in 0.25–0.99 of the patients who undergo thyroid surgery, is a rare embryologically-derived variant of the recurrent laryngeal nerve (RLN). Identification and prevention of injury to the laryngeal nerve is very important in thyroid surgery. The objective of the study was to highlight the incidence of Non-recurrent laryngeal nerve in our series of thyroidectomy cases.Methods: In the Department of Otorhinolaryngology, Pondicherry a retrospective analysis of all the thyroid surgeries that were operated between August 2006-November 2018 for various indications on a total of 1006 patients was done with specific interest in the lookout for anatomical variant of recurrent laryngeal nerve and findings were recorded. Results: Among all the cases, two patients with MNG who had underwent Total thyroidectomy were found to have anatomical variants of recurrent laryngeal nerve (non recurrent laryngeal nerve) intra operatively.Conclusions: The NRLN is a rare finding and is associated to an increased risk in iatrogenic injury especially during thyroid surgeries unless thorough anatomical knowledge and cautious dissection is not done.

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Non-Recurrent Laryngeal Nerve

Abstract: Non recurrent laryngeal nerve is a rare anatomical variation, occurring more frequently on the right side. Surgeon during surgery of the thyroid and parathyroid glands should be aware of its existence to avoid damage.

Cited by 6 publications

References 13 publications

The Non-Recurrent Laryngeal Nerve: a meta-analysis and clinical considerations

The Non-Recurrent Laryngeal Nerve: a meta-analysis and clinical considerations

Three concurrent variations of the aberrant right subclavian artery, the non-recurrent laryngeal nerve and the right thoracic duct

Incidental presence of non recurrent laryngeal nerve in our series of thyroidectomy

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