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Chinese Journal of Operative Procedures of General Surgery(Electronic Edition) ›› 2025, Vol. 19 ›› Issue (03): 337-340. doi: 10.3877/cma.j.issn.1674-3946.2025.03.028.

• Original Articles • Previous Articles    

Analysis of risk factors and construction of prediction model for contralateral central lymph node metastasis in papillary thyroid carcinoma

Zongheng Zhu1, Zhihuo Zhang2,()   

  1. 1. Department of General Surgery,the Fourth Hospital of Huangshi City,Huangshi Hubei Province 435000,China
    2. Department of General Surgery,Huangshi Central Hospital (Affiliated Hospital of Hubei Institute of Technology) ,Huangshi Hubei Province 435000,China
  • Received:2024-06-08 Online:2025-06-26 Published:2025-04-10
  • Contact: Zhihuo Zhang

Abstract:

Objective

To analyze the risk factors for contralateral central lymph node (Cont-CLNs)metastasis in papillary thyroid carcinoma (PTC),construct a prediction model for Cont-CLNs metastasis,and provide a reference for the scope of lymph node dissection in PTC.

Methods

The clinical and ultrasound data of 116 PTC patients who underwent total thyroidectomy + bilateral central lymph node (CLNs) dissection were retrospectively selected.According to the postoperative pathological results,they were divided into the Cont-CLNs metastasis group and the non-metastasis group.The data were analyzed using SPSS 20.0 software.The counting data were expressed as [cases (%)] and the chi-square test was performed.Binary logistic regression was used to analyze the independent risk factors for Cont-CLNs metastasis.A prediction model for Cont-CLNs metastasis was constructed,and the receiver operating characteristic (ROC) curve,calibration curve,and Hosmer-Lemeshow goodness-of-fit test were used to evaluate the diagnostic efficacy of the model.A P value less than 0.05 was considered statistically significant.

Results

Among 116 PTC patients,31 cases (26.7%)had Cont-CLNs metastasis.Logistic regression analysis showed that gender,tumor size,capsular invasion,CLNs metastasis on the affected side,lymph node metastasis at the midline of the neck,and microcalcification were independent risk factors affecting Cont-CLNs metastasis (all P<0.05).A regression prediction model for Cont-CLNs metastasis was constructed,and it was shown that the area under the curve (AUC) value of this model for predicting Cont-CLNs metastasis was 0.816 (0.697-0.902),with good goodness-of-fit,and there was a good consistency between the predicted values and the actual values.

Conclusion

Male gender,tumor size≥2cm,capsular invasion,CLNs metastasis on the affected side,lymph node metastasis at the midline of the neck,and microcalcification are risk factors for Cont-CLNs metastasis in PTC patients.

Key words: Papillary Thyroid Carcinoma, Contralateral Central Lymph Nodes, Risk Factors, Prediction Model

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