Estratificaçäo de risco com troponina-I em pacientes submetidos à revascularizaçäo cirúrgica do miocárdio / Risk stratification with troponin I in patients undergoing myocardial revascularization surgery
Arq. bras. cardiol
;
80(3): 279-288, Mar. 2003. tab, graf
Artigo
em Português, Inglês
| LILACS
| ID: lil-331106
RESUMO
OBJECTIVE:
To determine the immediate behavior and the prognostic value in terms of late survival of serum troponin I measurement in patients undergoing myocardial revascularization surgery with extracorporeal circulation.METHODS:
We studied 88 random patients, 65 (73.8 percent) of the male sex, who underwent myocardial revascularization surgery with extracorporeal circulation. Troponin measurements were performed as follows in the preoperative period, right after intensive care unit admission, and on the first and second postoperative days. Values below 0.1 nanogram per milliliter (ng/mL) were considered normal. The cut points for late prognostic assessment were 0.5 ng/mL; 1 ng/mL; 2.5 ng/mL; and 5 ng/mL.RESULTS:
The serum troponin I levels were elevated on the first postoperative day, suggesting the occurrence of specific myocardial damage. Patients with a poor prognosis could be identified, because the serum levels above 2.5 ng/mL and 5 ng/mL in the postoperative period resulted, respectively, in mortality rates of 33 percent and 50 percent in a maximum 6-month follow-up.CONCLUSION:
Troponin I values around 2.5 ng/mL in the postoperative period should call attention to the need for more aggressive diagnostic or therapeuticalmeasures:
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Traumatismo por Reperfusão Miocárdica
/
Troponina I
/
Revascularização Miocárdica
Tipo de estudo:
Estudo de etiologia
/
Estudo observacional
/
Estudo prognóstico
/
Fatores de risco
Limite:
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
/
Português
Revista:
Arq. bras. cardiol
Assunto da revista:
Cardiologia
Ano de publicação:
2003
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Sociedade Portuguesa de Beneficência/BR
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