20. Occult lymph node micrometastases in patients with papillary thyroid cancer treated by toetva and related factors

Nguyen Xuan Hien, Nguyen Xuan Hau, Le Van Quang

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Abstract

This cross-sectional study assessed central cervical lymph node micro metastasis and related factors in patients with papillary thyroid cancer undergoing transoral endoscopic thyroidectomy vestibular approach (TOETVA). This study was conducted in 346 patients who underwent TOETVA to treat thyroid cancer in Department of Oncology and Palliative Care at Hanoi Medical University Hospital between January 2020 and December 2021. The clinical, surgical, and pathological characteristics were recorded. The rate of occult lymph node micro metastases was 39,9%. The average number of harvested lymph nodes was 5.98 ± 4.1 (range: 0 - 24) lymph nodes. The average number of micrometastases nodes was 1.04 ± 1.7 (range: 0 - 10) lymph nodes. On average, thyroiditis significantly increased the number of harvested lymph nodes by 8.3 ± 0.7 (range: 1 - 24) (p = 0.002). Tumor size on ultrasound and stage of tumor significantly increased the likelihood of occult lymph node micrometastase (p < 0.05). The stage of tumor was the only factor increased the likelihood of having more-than-5 occult lymph node micro metastases.

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References

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