Cadaveric Measurements of the Left Recurrent Laryngeal Nerve, Ligamentum Arteriosum, Aortic Arch, and Pulmonary Artery in the Thorax with Clinical Implications and Comparison Between Two Sexes in the American Population
Cadaveric Measurements of the Left Recurrent Laryngeal Nerve, Ligamentum Arteriosum, Aortic Arch, and Pulmonary Artery in the Thorax with Clinical Implications and Comparison Between Two Sexes in the American Population
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DOI：
10.7759/cureus.4828
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发表时间：
2019-06-04
影响因子：
1.2
通讯作者：
Chaudhury, Subhramoy
中科院分区：
文献类型：
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作者：
Ghosh, Anasuya;Chaudhury, Subhramoy
左侧喉返神经（RLN）在胸腔内紧密围绕该神经的食道、主动脉弓、肺动脉干、动脉韧带等结构病变或手术，容易受压或受损，导致声带麻痹。我们希望提供一组数据，包括健康人群中神经直径、离食道的距离、肺动脉、主动脉和靠近神经的动脉韧带的测量数据，以避免手术中神经损伤，并预测病变状态下神经受压的可能性。我们测量了39具防腐良好的尸体的左RLN和周围结构。我们比较了男性和女性尸体的价值。我们发现左侧RLN的平均直径为1.75 mm，神经到食道的平均距离为9.88 mm，主动脉弓和肺动脉的平均直径分别为26.14和19.93 mm，动脉韧带的长度和宽度分别为15.89和2.79 mm。在男性和女性参数之间没有发现临床显著差异。这组值在调查声带麻痹的原因或在靠近左RLN的手术中可能有用，以避免其损伤。
The left recurrent laryngeal nerve (RLN) is prone to get compressed or damaged, leading to vocal cord palsy, due to pathologies or surgeries of the structures closely surrounding this nerve in the thorax, including the esophagus, aortic arch, pulmonary trunk, and ligamentum arteriosum. We wanted to provide a data set including nerve diameter, its distance from the esophagus, measurements of the pulmonary artery, aorta, and ligamentum arteriosum in close proximity of the nerve in a healthy population to avoid its damage during surgery and predict its chances of compression during the diseased condition. We measured the left RLN and the surrounding structures in 39 well-embalmed cadavers. We compared the values among the male and female cadavers. We found that the mean diameter of the left RLN was 1.75 mm, the mean distance of the nerve from esophagus was 9.88 mm, the mean diameters of the aortic arch and pulmonary artery just distal to the attachment of the ligamentum arteriosum were 26.14 and 19.93 mm, respectively, and the length and width of ligamentum arteriosum were 15.89 and 2.79 mm, respectively. No clinically significant differences were found between male and female parameters. This set of values might be useful while investigating the cause of vocal cord palsies or during surgeries in close proximity to left RLN to avoid its damage.