Decrease of thyroid function after ischemic stroke is related to stroke severity

Autor: Evgeny Sidorov, Aruna Paul, Chao Xu, Claire Delpirou Nouh, Allshine Chen, Albina Gosmanova, Niyaz Gosmanov, David Lee Gordon, Irina Baranskaya, Juliane Chainakul, Robert Hamilton, Alexander Mdzinarishvili
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Thyroid Research, Vol 16, Iss 1, Pp 1-6 (2023)
Druh dokumentu: article
ISSN: 1756-6614
DOI: 10.1186/s13044-023-00160-w
Popis: Abstract Background Thyroid hormones are of fundamental importance for brain function. While low triiodothyronine levels during acute ischemic stroke (AIS) are associated with worse clinical outcomes, dynamics of thyroid function after AIS remains unknown. Thus, we longitudinally evaluated thyroid hormones after stroke and related them to stroke severity. Methods We prospectively traced thyroid stimulating hormone (TSH), free triiodothyronine (fT3), and free thyroxin (fT4) levels from the hyper-acute (within 24 h) to acute (3–5 days) and chronic (3–6 months) stages of ischemic stroke using a mixed regression model. Then, we analyzed whether stroke severity at presentation, expressed by National Institute of Health Stroke Scale (NIHSS), is associated with change in thyroid function. Results Forty-five patients were evaluated in hyper-acute and acute stages, while 29 were followed through chronic stage. TSH levels decreased from hyper-acute (2.91 ± 0.65 μIU/mL) to acute (2.86 ± 0.46 μIU/mL) and chronic stages of stroke (1.93 ± 0.35 μIU/m, p = 0.95). fT3 levels decreased from hyper-acute (2.79 ± 0.09 pg/ml) to acute (2.37 ± 0.07 pg/ml) stages, but recovered in chronic stage (2.78 ± 0.10 pg/ml, p
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