Triiodothyronine (T3), inflammation and mortality risk in patients with acute myocardial infarction.
Eur Thyroid J
; 11(2)2022 02 09.
Article
en En
| MEDLINE
| ID: mdl-35007210
ABSTRACT
Objectives:
To study the relationship between serum-free T3 (FT3), C-reactive protein (CRP) and all-cause mortality in patients with acute myocardial infarction (AMI).Design:
Prospective multicentre longitudinal cohort study.Methods:
Between December 2014 and December 2016, thyroid function and CRP were analysed in AMI (both ST-elevation (STEMI) and non-ST-elevation) patients from the Thyroxine in Acute Myocardial Infarction study. The relationship of FT3 and CRP at baseline with all-cause mortality up to June 2020 was assessed. Mediation analysis was performed to evaluate if CRP mediated the relationship between FT3 and mortality.Results:
In 1919 AMI patients (29.2% women, mean (s.d.) age 64.2 (12.1) years and 48.7% STEMI) followed over a median (interquartile range) period of 51 (46-58) months, there were 277 (14.4%) deaths. Overall, lower serum FT3 and higher CRP levels were associated with higher risk of mortality. When divided the patients into tertiles based on the levels of FT3 and CRP; the group with the lowest FT3 and highest CRP levels had a 2.5-fold increase in mortality risk (adjusted hazard ratio (95% CI) of 2.48 (1.82-3.16)) compared to the group with the highest FT3 and lowest CRP values. CRP mediated 9.8% (95% CI 6.1-15.0%) of the relationship between FT3 and mortality.Conclusions:
In AMI patients, lower serum FT3 levels on admission are associated with a higher mortality risk, which is partly mediated by inflammation. Adequately designed trials to explore the potential benefits of T3 in AMI patients are required.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Idioma:
En
Revista:
Eur Thyroid J
Año:
2022
Tipo del documento:
Article
País de afiliación:
Reino Unido