Elevated High-Sensitivity Troponin I in the Stabilized Phase after an Acute Coronary Syndrome Predicts All-Cause and Cardiovascular Mortality in a Highly Admixed Population: A 7-Year Cohort

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Citações na Scopus
7
Tipo de produção
article
Data de publicação
2019
DOI
SciELO
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
ARQUIVOS BRASILEIROS CARDIOLOGIA
Autores
CASTRO, Leandro Teixeira de
Citação
ARQUIVOS BRASILEIROS DE CARDIOLOGIA, v.112, n.3, p.230-237, 2019
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Background: High-sensitivity cardiac troponin I (hs-cTnl) has played an important role in the risk stratification of patients during the in-hospital phase of acute coronary syndrome (ACS), but few studies have determined its role as a long-term prognostic marker in the outpatient setting. Obiective : To investigate the association between levels of hs-cTnl measured in the subacute phase after an ACS event and long-term prognosis in a highly admixed population. Methods: We measured levels of hs-cTnl in 525 patients 25 to 90 days after admission for an ACS event; these patients were then divided into tertiles according to hs-cTnl levels and followed for up to 7 years. We compared all-cause and cardiovascular mortality using Cox proportional hazards models and adopting a significance level of 5%. Results: After a median follow-up of 51 months, patients in the highest tertile had a greater hazard ratio (HR) for all-cause mortality after adjustment for age, sex, known cardiovascular risk factors, medication use, and demographic factors (HR: 3.84, 95% Cl: 1.92-8.12). These findings persisted after further adjustment for estimated glomerular filtration rate < 60 ml/min/1.73 m(2) and left ventricular ejection fraction < 0.40 (HR: 6.53, 95% CI: 2.12-20.14). Cardiovascular mortality was significantly higher in the highest tertile after adjustment for age and sex (HR: 5.65, 95% CI: 1.94-16.47) and both in the first (HR: 4.90, 95% CI: 1.35-17.82) and second models of multivariate adjustment (HR: 5.89, 95% CI: 1.08-32.27). Conclusions: Elevated hs-cTnl levels measured in the stabilized phase after an ACS event are independent predictors of all-cause and cardiovascular mortality in a highly admixed population.
Palavras-chave
Coronary Artery Disease / mortality, Troponin I, Prognosis, Metabolic Syndrome, Biological Variation, population, Risk Factors
URI
https://observatorio.fm.usp.br/handle/OPI/31613
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - HC/ICESP
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - HU
Artigos e Materiais de Revistas Científicas - LIM/13
Artigos e Materiais de Revistas Científicas - LIM/20
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