Detection of serum thyroid hormone level in patients with acute cerebral infarction and its clinical significance

Objective: To investigate the change of serum thyroid hormone in patients with acute cerebral infarction（ACI）and to explore its clinical significance.Methods: Serum triiodothyronine（T₃）,thyroxine（T₄）and thyroid-stimulating hormone（TSH）were detected by chemoluminescence assay in 30 cases of ACI and 30 normal controls,and the results were compared.Results: The levels of serum T₃,T₄ and TSH were significantly lower in patients with ACI than in those of normal controls（P<0.01 to P<0.001）.Conclusions: The change of serum thyroid hormone in patients with ACI may be a protective reaction in human body,thus treatment that aims to this change is unnecessary.