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Κυριακή 16 Οκτωβρίου 2022

Development and validation of a nomogram for the prediction of lymph node metastasis within 2‐year postoperatively in cT1‐T2N0 oral squamous cell carcinoma

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Abstract

Background

The current neck management for early oral squamous cell carcinoma (OSCC) has always been a controversial issue. A comprehensive model is necessary for predicting an individual's metastasis risk and appropriate patient counseling.

Methods

A nomogram for predicting 2-year LNM in patients with cT1-2N0 OSCC was developed and validated using clinicopathological data from 642 patients from 2000 to 2018 in four hospitals, China.

Results

Three variables (pathology grade, depth of invasion, tumor-infiltrating lymphocytes) were included in nomogram. C-indices were 0.826 (95% CI: 0.786–0.866) and 0.726 (95% CI: 0.653–0.780) in the internal and external validation. Kaplan–Meier method found the 2-year LNM rate of high-risk group (35.8%) was much higher than that of the low-risk group (14.5%). The nomogram model has an advantage over the 8th AJCC TNM stage in predicting the individual 2-year LNM probability for early OSCC.

Conclusion

Patients with low-risk nomogram score may receive neck observation; those with high-risk score should receive END.

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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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