Background-Given the high incidence of sudden death in patients with chronic heart failure (CHF) and the efficacy of implantable cardioverter-defibrillators, an appropriate tool for the prediction of sudden death is desirable. B-type natriuretic peptide (BNP) has prognostic significance in CHF, and the stimuli for its production cause electrophysiological abnormalities. This study tests BNP levels as a predictor of sudden death. Methods and Results-BNP levels, in addition to other neurohormonal, clinical, and hemodynamic variables, were obtained from 452 patients with a left ventricular ejection fraction (LVEF) Յ35%. For prediction of sudden death, only survivors without heart transplantation (HTx) or a mechanical assist device and patients who died suddenly were analyzed. Up to 3 years, 293 patients survived without HTx or a mechanical assist device, 89 patients died, and 65 patients underwent HTx. Mode of death was sudden in 44 patients (49%), whereas 31 patients (35%) had pump failure and 14 patients (16%) died from other causes. Univariate risk factors of sudden death were log BNP (Pϭ0.0006), log N-terminal atrial natriuretic peptide (Pϭ0.003), LVEF (Pϭ0.005), log N-terminal BNP (Pϭ0.006), systolic blood pressure (Pϭ0.01), big endothelin (Pϭ0.03), and NYHA class (Pϭ0.04). In the multivariate model, log BNP level was the only independent predictor of sudden death (Pϭ0.0006). Using a cutoff point of log BNP Ͻ2.11 (130 pg/mL), Kaplan-Meier sudden death-free survival rates were significantly higher in patients below (99%) compared with patients above (81%) this cutoff point (Pϭ0.0001). Conclusion-BNP levels are a strong, independent predictor of sudden death in patients with CHF.
Hypoxic hepatitis is the consequence of multiorgan injury. Outcome is influenced by the severity of liver impairment and the etiology and severity of the basic disease.
In patients with advanced LV dysfunction receiving high-dose angiotensin-converting enzyme inhibitors and beta-blocker therapy BNP and N-BNP plasma levels are both independently related to mortality. This observation highlights the importance of these hormones and implies that they will likely emerge as a very useful blood test for detection of the progression of heart failure, even in the face of neurohumoral blocking therapy.
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