Arquivos Brasileiros de Cardiologia (Oct 2010)
Cardiomiopatia chagásica: prognóstico no perfil clínico-hemodinâmico C Cardiomiopatía chagásica: pronóstico en el perfil clínico-hemodinámico C Chagas cardiomyopathy: prognosis in clinical and hemodynamic profile C
Abstract
FUNDAMENTO: Os pacientes com insuficiência cardíaca (IC) que são internados apresentando má perfusão e congestão (perfil clínico-hemodinâmico C) constituem o grupo que evolui com pior prognóstico na IC descompensada. Entretanto, há pouca informação na literatura se a etiologia da cardiopatia influencia na evolução dos pacientes na fase avançada. OBJETIVO: Avaliar a evolução dos pacientes que se internaram com perfil clínico-hemodinâmico C e verificar o papel da etiologia nesta fase. MÉTODOS: Um estudo de coorte foi realizado incluindo pacientes com fração de ejeção do ventrículo esquerdo (FEVE) FUNDAMENTO: Los pacientes con insuficiencia cardíaca (IC) que son internados presentando mala perfusión y congestión (perfil clínico-hemodinámico C) constituyen el grupo que evoluciona con peor pronóstico en la IC descompensada. Mientras tanto, hay poca información en la literatura sobre si la etiología de la cardiopatía influencia en la evolución de los pacientes en la fase avanzada. OBJETIVO: Evaluar la evolución de los pacientes que se internaron con perfil clínico-hemodinámico C y verificar el papel de la etiología en esta fase. MÉTODOS: Un estudio de cohorte fue realizado incluyendo pacientes con fracción de eyección del ventrículo izquierdo (FEVI) BACKGROUND: Patients with heart failure (HF) who are admitted showing poor perfusion and congestion (clinical-hemodynamic profile C) are the group that evolves with the worst prognosis in decompensated heart failure. However, there is little information in literature on the etiology of cardiopathy influences the outcome of patients in advanced stage. OBJECTIVE: To assess the outcome of patients admitted with clinical and hemodynamic profile C and verify the role of the etiology in this phase. METHODS: A cohort study was performed including patients with left ventricle ejection fraction (LVEF) < 45.0%, functional class IV and hospitalization presenting clinical-hemodynamic profile C. The group was divided into patients with chagasic (Ch) and non chagasic (NCh) cardiomyopathy. Statistical analysis used Student t test, Fisher exact test, chi-square and SPSS tests. The significance of p < 0.05 was considered. RESULTS: One hundred patients, with mean age 57.6 ± 15.1 years and mean LVEF of 23.8 ± 8.5%, were included. Among the patients studied, 33.0% were chagasic and, in comparison with NCh, had lower systolic blood pressure (Ch 89.3 ± 17.1 mmHg versus NCh 98.8 ± 21.7 mmHg, p = 0.03 ) and lowest average age - Ch 52.9 ± 14.5 years versus NCh 59.8 ± 14.9 years, p = 0.03). During follow-up of 25 months, mortality was 66.7% for Ch and 37.3% in NCh (p = 0.019). The Chagas disease etiology was an independent marker of poor prognosis in multivariate analysis with risk ratio of 2.75 (HF 95.0%, from 1.35 to 5.63). CONCLUSION: In patients with advanced HF, Chagas disease is an important predictor of the worst prognosis.
