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García Gómez, Carlos; Navarro, Elena; Alcázar, Victoria; López-Guzmán, Antonio; Arrieta, Francisco; Anda, Emma; Biagetti, Betina; Guerrero-Pérez, Fernando; Villabona, Carles; de Assín Valverde, Andrés Ruiz; Lamas, Cristina; Lecumberri, Beatriz; Rosado Sierra, José Antonio; Sastre, Julia; Díez, Juan José; Iglesias, Pedro

Therapeutic Management and Long-Term Outcome of Hyperthyroidism in Patients with Antithyroid-Induced Agranulocytosis: A Retrospective, Multicenter Study

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  • Media type: E-Article
  • Title: Therapeutic Management and Long-Term Outcome of Hyperthyroidism in Patients with Antithyroid-Induced Agranulocytosis: A Retrospective, Multicenter Study
  • Contributor: García Gómez, Carlos; Navarro, Elena; Alcázar, Victoria; López-Guzmán, Antonio; Arrieta, Francisco; Anda, Emma; Biagetti, Betina; Guerrero-Pérez, Fernando; Villabona, Carles; de Assín Valverde, Andrés Ruiz; Lamas, Cristina; Lecumberri, Beatriz; Rosado Sierra, José Antonio; Sastre, Julia; Díez, Juan José; Iglesias, Pedro
  • Published: MDPI AG, 2023
  • Published in: Journal of Clinical Medicine, 12 (2023) 20, Seite 6556
  • Language: English
  • DOI: 10.3390/jcm12206556
  • ISSN: 2077-0383
  • Keywords: General Medicine
  • Origination:
  • Footnote:
  • Description: Background: Antithyroid drug-induced agranulocytosis (AIA) (neutrophils <500/µL) is a rare but serious complication in the treatment of hyperthyroidism. Methodology: Adult patients with AIA who were followed up at 12 hospitals in Spain were retrospectively studied. A total of 29 patients were studied. The etiology of hyperthyroidism was distributed as follows: Graves’ disease (n = 21), amiodarone-induced thyrotoxicosis (n = 7), and hyperfunctioning multinodular goiter (n = 1). Twenty-one patients were treated with methimazole, as well as six patients with carbimazole and two patients with propylthiouracil. Results: The median (IQR) time to development of agranulocytosis was 6.0 (4.0–11.5) weeks. The most common presenting sign was fever accompanied by odynophagia. All of the patients required admission, reverse isolation, and broad-spectrum antibiotics; moreover, G-CSF was administered to 26 patients (89.7%). Twenty-one patients received definitive treatment, thirteen patients received surgery, nine patients received radioiodine, and one of the patients required both treatments. Spontaneous normalization of thyroid hormone values occurred in six patients (four patients with amiodarone-induced thyrotoxicosis and two patients with Graves’ disease), and two patients died of septic shock secondary to AIA. Conclusions: AIA is a potentially lethal complication that usually appears around 6 weeks after the initiation of antithyroid therapy. Multiple drugs are required to control hyperthyroidism before definitive treatment; additionally, in a significant percentage of patients (mainly in those treated with amiodarone), hyperthyroidism resolved spontaneously.
  • Access State: Open Access