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Diez, Juan JAutor o CoautorAlvarez Escola, CristinaAutor o CoautorLecumberri Santamaria, BeatrizAutor o Coautor

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Recovery of parathyroid function in patients with thyroid cancer treated by total thyroidectomy: An analysis of 685 patients with hypoparathyroidism at discharge of surgery

Publicado en:Endocrinologia Diabetes y Nutricion. 68 (6): 398-407 - 2021-01-01 68(6), DOI: 10.1016/j.endien.2021.10.009

Autores: Díez Gómez, Juan José; Anda Apiñániz, Enma; Sastre Marcos, Julia; Pérez Corral, Begoña; Álvarez Escolá, Cristina; Manjón, Laura; Paja Fano, Miguel; Sambo Salas, Marcel; Santiago Fernández, Piedad; Blanco Carrera, Concepción; Galofré Ferrater, Juan Carlos; Navarro González, Elena; Zafón Llopis, Carles; Sanz, Eva; Oleaga Alday, Amelia; Bandrés Nivela, Orosia; Donnay Candil, Sergio; Megía Colet, Ana; Picallo, María; Sanchez Ragnarson, Cecilia; Baena Nieto, Gloria; Fernández García, José Carlos; Lecumberri Santamaría, Beatriz; Sahun de la Vega, Manuel; Romero Lluch, Ana; Iglesias Lozano, Pedro

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We aimed to study the predictive factors for recovery of parathyroid function in hypoparathyroid patients after total thyroidectomy for thyroid cancer.We designed a retrospective, multicentre and nation-wide analysis of patients with total thyroidectomy who were seen in twenty endocrinology departments from January to March 2018. We selected patients with histologically proven thyroid cancer and retrieved information related to surgical procedure and thyroid cancer features. Survival analysis and Cox regression analysis were used to study the relationship between these variables and the recovery of parathyroid function.From 685 patients with hypoparathyroidism at discharge of surgery, 495 (72.3%) recovered parathyroid function over time. Kaplan-Meier analysis showed that this recovery was significantly related to the presence of specialized surgical team (P<0.001), identification of parathyroid glands at surgery (P<0.001), papillary histopathology (P=0.040), and higher levels of postoperative calcium (Ca) (P<0.001) and parathyroid hormone (PTH) (P<0.001). Subjects with gross extrathyroidal extension (P=0.040), lymph node metastases (P=0.004), and surgical re-intervention after initial surgery (P=0.024) exhibited a significant risk of persistence of hypoparathyroidism. Multivariate Cox regression analysis showed that the significant and independent factors for recovery of parathyroid function were postoperative concentrations of Ca (P=0.038) and PTH (P=0.049). The presence of lymph node metastases was a negative predictor of recuperation of parathyroid function (P=0.042) in this analysis.In patients with thyroid cancer, recovery of parathyroid function after total thyroidectomy was directly related to postoperative Ca and PTH concentrations, and inversely related to lymph node metastases.Copyright © 2020 SEEN and SED. Published by Elsevier España, S.L.U. All rights reserved.

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