International journal of cardiology · 2014
Right ventricular dysfunction, late gadolinium enhancement, and female gender predict poor outcome in patients with dilated cardiomyopathy.
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Doesch Christina, Dierks Désirée-Marie, Haghi Dariusch, Schimpf Rainer, Kuschyk Jürgen, Suselbeck Tim, Schoenberg Stefan O, Borggrefe Martin, Papavassiliu Theano
Аннотация
AIMS: Dilated cardiomyopathy (DCM) shows a variable disease course and is associated with significant morbidity and mortality. So far, left ventricular function (LVF) is the major determinant for risk stratification. However, since it has shown to be a poor guide to individual outcome, we studied the prognostic value of cardiovascular magnetic resonance imaging (CMR) parameters, late gadolinium enhancement (LGE) and epicardial adipose tissue (EAT).
METHODS AND RESULTS: 140 patients with DCM underwent late gadolinium enhancement (LGE) CMR. During a median follow-up of 3 years, 22 patients (16%) died and another 51 (36%) were hospitalized due to congestive heart failure (CHF). Female gender and right ventricular ejection fraction (RV-EF) below the median of 38% were independent predictors of all-cause mortality in multivariable analysis. In patients who were hospitalized due to CHF, RV-EF below the median of 38% was the only independent predictor in multivariable analysis. When patients where further stratified according to systolic LV-EF, the prognostic value of RV-EF to predict mortality and cardiac morbidity remained unchanged. Looking at DCM patients who died during follow-up compared to those who were hospitalized due to CHF, the former presented with a higher prevalence of LGE as well as reduced indexed EAT.
CONCLUSION: Female gender, RV-EF and the presence of LGE are of prognostic importance in patients with DCM. Therefore, the present study underlines the role of CMR as an important tool for risk stratification in patients with DCM.
METHODS AND RESULTS: 140 patients with DCM underwent late gadolinium enhancement (LGE) CMR. During a median follow-up of 3 years, 22 patients (16%) died and another 51 (36%) were hospitalized due to congestive heart failure (CHF). Female gender and right ventricular ejection fraction (RV-EF) below the median of 38% were independent predictors of all-cause mortality in multivariable analysis. In patients who were hospitalized due to CHF, RV-EF below the median of 38% was the only independent predictor in multivariable analysis. When patients where further stratified according to systolic LV-EF, the prognostic value of RV-EF to predict mortality and cardiac morbidity remained unchanged. Looking at DCM patients who died during follow-up compared to those who were hospitalized due to CHF, the former presented with a higher prevalence of LGE as well as reduced indexed EAT.
CONCLUSION: Female gender, RV-EF and the presence of LGE are of prognostic importance in patients with DCM. Therefore, the present study underlines the role of CMR as an important tool for risk stratification in patients with DCM.