Open Access
CC BY-NC-ND 4.0 · Arq Neuropsiquiatr 2020; 78(11): 695-699
DOI: 10.1590/0004-282X20200070
Articles

Primary headache subtypes and thyroid dysfunction: Is there any association?

Subtipos de cefaleia primária e disfunção tireoidiana: existe alguma associação?

Authors

  • Ioanna SPANOU

    1   National and Kapodistrian University of Athens, Medical School, Aeginition Hospital, Athens, Greece.
  • Foteini CHRISTIDI

    1   National and Kapodistrian University of Athens, Medical School, Aeginition Hospital, Athens, Greece.
  • Georgios LIAKAKIS

    1   National and Kapodistrian University of Athens, Medical School, Aeginition Hospital, Athens, Greece.
  • Konstantina RIZONAKI

    1   National and Kapodistrian University of Athens, Medical School, Aeginition Hospital, Athens, Greece.
  • Anastasia BOUGEA

    1   National and Kapodistrian University of Athens, Medical School, Aeginition Hospital, Athens, Greece.
  • Evangelos ANAGNOSTOU

    1   National and Kapodistrian University of Athens, Medical School, Aeginition Hospital, Athens, Greece.
  • Evangelia KARARIZOU

    1   National and Kapodistrian University of Athens, Medical School, Aeginition Hospital, Athens, Greece.

ABSTRACT

Background: Primary headaches, and particularly migraine and tension-type headache (TTH) as well as hypothyroidism are common medical conditions. To date, numerous studies have suggested a possible bidirectional relationship between migraine and hypothyroidism, although certain studies had contradictory results. Objective: To investigate whether there is any association between primary headache subtypes and thyroid disorders. Methods: A retrospective study of consecutive patients aged ≥18 years referred to the Headache Outpatient Clinic of Aeginition Hospital and diagnosed with primary headache and any thyroid disorder. Results: Out of 427 patients (males/females=76/351), 253 (59.3%) were diagnosed with migraine without aura, 53 (12.4%) with TTH, 49 (11.5%) with migraine with aura, 29 (6.8%) with medication-overuse headache, 23 (5.4%) with mixed-type headache (migraine with/without aura and TTH), nine (2.1%) with cluster headache, and 11 (2.6%) with other types of primary headaches. The prevalence of any type of thyroid disorder was 20.8% (89/427 patients). In the total sample, 27 patients (6.3%) reported hypothyroidism, 18 (4.2%) unspecified thyroidopathy, 14 (3.3%) thyroid nodules, 12 (2.8%) Hashimoto thyroiditis, 12 (2.8%) thyroidectomy, three (0.7%) thyroid goiter, and three (0.7%) hyperthyroidism. Further statistical analysis between categorical variables did not reveal any significant association between headache subtypes and thyroid dysfunction. Conclusions: No specific association was found between primary headache subtypes and specific thyroid disorder. However, a high prevalence of thyroid dysfunction in general and specifically hypothyroidism was demonstrated among patients with primary headaches, which lays the foundation for further clarification in prospective longitudinal studies.

RESUMO

Introdução: Cefaleias primárias e, particularmente, enxaqueca e cefaleia do tipo tensional (CTT), bem como hipotiroidismo, constituem condições médicas comuns. Até o momento, vários estudos sugeriram uma possível relação bidirecional entre enxaqueca e hipotireoidismo, embora alguns estudos tenham resultados contraditórios. Objetivo: Investigar se existe associação entre subtipos de cefaleia primária e distúrbios da tireoide. Métodos: Estudo retrospectivo de pacientes consecutivos com idade ≥18 anos encaminhados ao Ambulatório de Cefaleia do Hospital Aeginition, com diagnóstico de cefaleia primária e qualquer distúrbio da tireoide. Resultados: De 427 pacientes (homens/mulheres=76/351), 253 pacientes (59,3%) foram diagnosticados com enxaqueca sem aura, 53 (12,4%) com CTT, 49 (11,5%) com enxaqueca com aura, 29 (6,8 %) com cefaleia por uso excessivo de medicamentos, 23 (5,4%) com cefaleia mista (enxaqueca com/sem aura e CTT), nove (2,1%) com cefaleia em salvas e 11 (2,6%) com outros tipos de cefaleias primárias. A prevalência de qualquer tipo de distúrbio tireoidiano foi de 20,8% (89/427 pacientes). Na amostra total, 27 pacientes (6,3%) relataram hipotireoidismo, 18 (4,2%) tireoidopatia não especificada, 14 (3,3%) nódulos de tireoide, 12 (2,8%) tireoidite de Hashimoto, 12 (2,8%) tireoidectomia, três (0,7%) bócio da tireoide e três (0,7%) hipertireoidismo. Uma análise estatística posterior entre as variáveis categóricas não revelou qualquer associação significativa entre os subtipos de cefaleia e disfunção tireoidiana. Conclusões: Não encontramos associação entre subtipos de cefaleia primária e distúrbio específico da tireoide. No entanto, foi observada prevalência elevada de disfunção tireoidiana em geral e especificamente hipotireoidismo entre pacientes com cefaleia primária, o que estabelece base para maiores esclarecimentos em estudos longitudinais prospectivos.

Authors’ contributions:

IS and EK: conception and design. IS, GL, KR and AB: acquisition of data. IS, FC and EK: analysis and interpretation of data. IS and EK: drafting the manuscript. IS, FC, GL, KR, AB, EA and EK: revising it for intellectual content and final approval of the completed manuscript.


Disclosure:

An earlier version of this work has been presented as an abstract at the 13th European Headache Federation Congress.




Publication History

Received: 03 May 2020

Accepted: 17 May 2020

Article published online:
07 June 2023

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