The non-thyroidal illness syndrome (NTIS) or the sick euthyroid syndrome refers to abnormal changes in circulating thyroid hormones due to systemic illnesses. Thyroid hormones are pivotal in the regulation of normal cardiac functions. However, the effects of the NTIS on the heart in acute coronary syndrome (ACS) are still unclear.
* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.