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Prophylactic central lymph node dissection informs the decision of radioactive iodine ablation in papillary thyroid cancer

Carolina Nylén, Frida Bragvad Eriksson, Anna Yang, Ahmad Aniss, John Turchini, Diana Learoyd, Bruce G. Robinson, Anthony J. Gill, Roderick J. Clifton-Bligh, Mark S. Sywak, Anthony R. Glover, Stan B. Sidhu

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Background: Prophylactic central lymph node dissection (CLND) in papillary thyroid cancer (PTC) is controversial. We aimed to investigate if prophylactic CLND aids risk stratification and contributes to the decision for postoperative RAI ablation.

    Methods: Patients undergoing thyroidectomy for PTC and prophylactic CLND were identified from an endocrine surgical unit database. Pathology reports where reviewed for number and size of lymph nodes and patients stratified by risk according to the ATA guidelines.

    Results: 426 patients were identified with PTC ≤4 cm and prophylactic CLND. 96 patients (23%) had central lymph node metastasis (CLNM) that qualified them for the intermediate risk group. In 17 patients (4%), the CLNM data led to upgrading independently of other histopathological characteristics. Correcting for multiple variables, CLNM was an independent factor contributing to RAI treatment.

    Conclusion: Prophylactic CLND provides information to aid the selection of RAI ablation independent of primary cancer histology for risk stratification in 4% of patients. This benefit should be carefully balanced with the risk of CLND and patient treatment choice when deciding on management of PTC ≤4 cm.
    Original languageEnglish
    Pages (from-to)886-892
    Number of pages7
    JournalThe American Journal of Surgery
    Volume221
    Issue number5
    DOIs
    Publication statusPublished - May 2021

    Keywords

    • Papillary thyroid cancer
    • Prophylactic central lymph node dissection
    • Radioactive iodine ablation
    • Risk assessment

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