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Rev. bras. hipertens ; 15(3): 147-151, jul.-set. 2008. graf
Article in Portuguese | LILACS | ID: lil-507889

ABSTRACT

A insuficiência renal crônica (IRC) tem se tornado freqüente entre os pacientes portadores de doença arterial coronária(DAC), com expressivos aumentos de morbidade e mortalidade. Por outro lado, a doença renal crônica representa fator de risco independente para o desenvolvimento de DAC, havendo aumento de mortalidade com a progressão da insuficiência renal. O valor prognóstico das troponinas cardíacas em pacientes com síndromes coronarianas agudas e insuficiência renal encontra-se em estudo. Destaque especial é dado à troponina cardíaca I (cTnI) como marcador de infarto agudo do miocárdio nesse grupo específico de pacientes. O tratamento mais agressivo desses pacientes não resulta, obrigatoriamente, em melhor prognóstico. É fundamental o ajuste das doses dos agentes trombolíticos. Pacientes com síndromes coronarianas agudas são considerados de risco elevado, recomendando-se o uso de altas doses de estatinas, sendo os benefícios independentes da função renal. Em resumo, atenção especial deve ser voltada aos portadores de IRC e DAC, considerando-se que evidências crescentes sugerem que pacientes com graus leves e moderados de insuficiência renal também podem apresentar pior prognóstico da doença coronariana quando comparados àqueles com função renal preservada.


Chronic kidney disease is be coming common among patients with acute coronary syndromes and is associated with substantial cardiovascular morbidity and mortality. Recent evidence has shown that chronic kidney disease is an independent risk factor for outcomes in patients with acute coronary syndromes and that there is a dependent increase in mortality with progressive decline of renal function. The prognostic value of cardiac troponins inpatients with elevation acute coronary syndromes and chronic kidney disease is debated – special attention is given to cTnI for its diagnostic role in an acute myocardial infarction setting. It has been demonstrated that the use of aggressive treatment strategies in these patients may not be associated with improved outcome. It is very critical for the correct dose adjustment of many antithromboticand antiplatelet therapies, the accurate renal function estimation. Overall, patients with acute coronary syndromes are considered very high-risk patients for events and current guidelines recommend high-dose statin use, however the benefits are independent of renal function. Thus, chronic kidney disease is common, and the severity of chronic kidney disease are strongly related to the risk of adverse in-hospital outcomes.


Subject(s)
Humans , Acute Coronary Syndrome , Fibrinolytic Agents , Biomarkers , Renal Dialysis , Renal Insufficiency, Chronic
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