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Clinical evaluation of right recurrent laryngeal nerve nodes in thoracic esophageal squamous cell carcinoma.

ABSTRACT: Background:The accuracy of clinical N staging of esophageal squamous cell carcinoma is suboptimal. As an important station of lymph node metastasis, station C201 (right recurrent laryngeal nerve nodes) has rarely been evaluated alone. We aimed to explore an effective way to evaluate the right recurrent laryngeal nerve nodes in thoracic esophageal squamous cell carcinoma. Methods:We retrospectively analyzed 628 thoracic esophageal squamous cell carcinoma patients who underwent radical resection without neoadjuvant therapy from two Chinese cancer centers. The diameter of the short axis of the largest right recurrent laryngeal nerve node (DC201) was measured on contrast-enhanced multi-slice computed tomography (MSCT). Right recurrent laryngeal nerve nodes were examined by postoperative pathologic results. The receiver operating characteristic (ROC) curve was generated to assess the diagnostic capabilities of DC201 to determine the right recurrent laryngeal nerve nodes status. Results:ROC curve analysis revealed that the optimal cut-off point of DC201 was 6 mm, with an area under curve (AUC), sensitivity, specificity, and Youden index of 0.896, 71.9%, 88.8%, and 0.607 respectively. When the cut-off point of DC201 was set to 10 mm, sensitivity, specificity and the Youden index were 14.1%, 99.6% and 0.137 respectively. Among 128 patients with right recurrent laryngeal nerve node metastasis, 71 and 108 patients had the largest right recurrent laryngeal nerve node located above the suprasternal notch level and in the tracheoesophageal groove respectively. Conclusions:When DC201 ?6.0 mm instead of DC201 ?10 mm was used to dictate the right recurrent laryngeal nerve nodes metastasis, contrast-enhanced MSCT could evaluate the status of right recurrent laryngeal nerve nodes with high sensitivity and specificity. The largest right recurrent laryngeal nerve nodes were mainly located in the tracheoesophageal groove and/or above the suprasternal notch.

SUBMITTER: Li ZX

PROVIDER: S-EPMC7399419 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Clinical evaluation of right recurrent laryngeal nerve nodes in thoracic esophageal squamous cell carcinoma.

Li Zhen-Xuan ZX Li Xiao-Dong XD Liu Xian-Ben XB Xing Wen-Qun WQ Sun Hai-Bo HB Wang Zong-Fei ZF Zhang Rui-Xiang RX Li Yin Y

Journal of thoracic disease 20200701 7

<h4>Background</h4>The accuracy of clinical N staging of esophageal squamous cell carcinoma is suboptimal. As an important station of lymph node metastasis, station C201 (right recurrent laryngeal nerve nodes) has rarely been evaluated alone. We aimed to explore an effective way to evaluate the right recurrent laryngeal nerve nodes in thoracic esophageal squamous cell carcinoma.<h4>Methods</h4>We retrospectively analyzed 628 thoracic esophageal squamous cell carcinoma patients who underwent radi ...[more]

PMID: 32802441

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Project description:BackgroundTumor metastasis to lymph nodes posterior to the right recurrent laryngeal nerve (LN-prRLN) is a main cause of disease recurrence in patients with papillary thyroid carcinoma (PTC), which may increase the risk of recurrence and secondary surgery, and the disruption of normal anatomical relationships during secondary surgery increases the risk of laryngeal nerve injury and hypoparathyroidism. However, controversy remains as to whether the dissection of LN-prRLN is required in cN0 PTC patients. The purpose of this study is to explore the factors associated with LN-prRLN metastasis in patients with cN0 PTC and the need for LN-prRLN node dissection in patients with cN0 PTC who undergo right central compartment dissection.MethodsThe clinical data of 290 patients with cN0 PTC who received radical thyroid cancer surgery from December 2019 to March 2022 at our center were retrospectively analyzed. All the patients underwent thyroid lobectomy and right central lymph node dissection (CLND), along with other treatments. SPSS 26.0 statistical software was used for the analysis. The measurement data were compared using the rank-sum test, and the count data were compared using the chi-square test.ResultsLN-prRLN metastasis was detected in 65 (22.4%) of the 290 cN0 PTC patients. The metastasis sites included level VIa (51.72%), the left central compartment (22.76%), and the prelaryngeal compartment (8.97%). The univariate analysis revealed that tumor multifocality, a tumor diameter >1 cm, capsular invasion, LN metastasis in the left central compartment, and level VIa positivity were influencing factors of LN-prRLN metastasis in PTC patients. The logistic regression analysis showed that a tumor diameter >1 cm (OR =2.897, 95% CI: 1.630-5.147, P<0.001), LN metastasis in the left central compartment (OR =3.724, 95% CI: 2.039-6.801, P<0.001), and level VIa (OR =3.405, 95% CI: 1.846-6.281, P<0.001) positivity were independent risk factors of LN-prRLN metastasis in PTC patients.ConclusionsThe high-risk factors of LN-prRLN metastasis in cN0 PTC patients include a large tumor (a diameter >1 cm), lymph node metastasis in the left central compartment, and lymph node metastasis in level VIa. For patients with cN0 PTC undergoing right CLND, with high-risk factors of LN-prRLN metastasis, LN-prRLN dissection is recommended.KeywordsPapillary thyroid carcinoma (PTC); lymph nodes posterior to the right recurrent laryngeal nerve (LN-prRLN); central compartment lymph node dissection; risk factor.

Dataset Information

Clinical evaluation of right recurrent laryngeal nerve nodes in thoracic esophageal squamous cell carcinoma.

Publications

Clinical evaluation of right recurrent laryngeal nerve nodes in thoracic esophageal squamous cell carcinoma.

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