SciELO - Scientific Electronic Library Online

 
vol.31 número7Serum concentrations and renal expressions of IL-1 and TNF-a early after hemorrhage in rats under the effect of glibenclamideToll-like receptor 7 involves the injury in acute kidney ischemia/reperfusion of STZ-induced diabetic rats índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Acta Cirurgica Brasileira

versão impressa ISSN 0102-8650versão On-line ISSN 1678-2674

Resumo

SPERANDIO, Fabiana Araújo; IMAMURA, Rui; TSUJI, Domingos Hiroshi  e  SENNES, Luiz Ubirajara. Surgical approach to the thyroarytenoid branch of the inferior laryngeal nerve through the thyroid cartilage. Acta Cir. Bras. [online]. 2016, vol.31, n.7, pp.442-447. ISSN 1678-2674.  https://doi.org/10.1590/S0102-865020160070000003.

PURPOSE:

To describe the anatomical course of the intralaryngeal portion of the inferior laryngeal nerve (ILN) and to standardize the surgical access to its thyroarytenoid branch (TAb) through the thyroid cartilage.

METHODS:

Under surgical microscopy, 33 adult human excised larynges were dissected, to expose the intralaryngeal portion of ILN. The point of entry of TAb, ILN's terminal branch, in the thyroarytenoid (TA) muscle was determined and correlated with thyroid cartilage dimensions.

RESULTS:

After entering the larynx, the ILN consistently traveled between the thyroid cartilage and the lateral cricoarytenoid muscle in an anterior and slightly cranial course. The distance from the point of entry of the TAb in the TA muscle to the midline (TAb-H) and to the inferior border (TAb-V) of the thyroid cartilage differed according to gender. In females, mean distances of TAb-H and TAb-V were 20.5mm and 5.2mm and in males, 22.3mm and 5.9mm, respectively.

CONCLUSION:

The intralaryngeal course of the inferior laryngeal nerve presents low variability and measures from landmarks in the thyroid cartilage help to estimate the point of entry of thyroarytenoid branch in thyroarytenoid muscle.

Palavras-chave : Larynx; /anatomy & histology; Laryngeal Mucosa; /innervation.

        · texto em Inglês     · Inglês ( pdf )