Journal of the American College of Cardiology
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J. Am. Coll. Cardiol. · Nov 2007
Multicenter Study Comparative StudyComparison of midregional pro-atrial natriuretic peptide with N-terminal pro-B-type natriuretic peptide in predicting survival in patients with chronic heart failure.
Our aim was assess the prognostic value of midregional pro-atrial natriuretic peptide (MR-proANP) using a new immunoassay in patients with chronic heart failure (HF). ⋯ Midregional proANP is an independent predictor of mortality in patients with chronic HF. Midregional proANP adds prognostic information to NT-proBNP.
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J. Am. Coll. Cardiol. · Nov 2007
Multicenter StudyPrognostic value of T-wave alternans in patients with heart failure due to nonischemic cardiomyopathy: results of the ALPHA Study.
The aim of this study was to assess the prognostic value of T-wave alternans (TWA) in New York Heart Association (NYHA) functional class II/III patients with nonischemic cardiomyopathy and left ventricular ejection fraction (LVEF) < or =40%. ⋯ Among NYHA functional class II/III nonischemic cardiomyopathy patients, an abnormal TWA test is associated with a 4-fold higher risk of cardiac death and life-threatening arrhythmias. Patients with normal TWA tests have a very good prognosis and are likely to benefit little from ICD therapy.