Scar burden, not intraventricular conduction delay pattern, is associated with outcomes in ischemic cardiomyopathy patients receiving cardiac resynchronization therapy.Value of brain natriuretic peptide after acute myocardial infarction.Bundle branch blocks and/or hemiblocks complicating acute myocardial ischemia or infarction.ECG parameters predict left ventricular conduction delay in patients with left ventricular dysfunction.Greater response to cardiac resynchronization therapy in patients with true complete left bundle branch block: a PREDICT substudy.Incidence and clinical significance in relation to the presence of bundle branch block and to the absence of intraventricular conduction defects. Left anterior hemiblock in acute myocardial infarction.Plasma B-type natriuretic peptide as a marker of myocardial asynchrony.CONCLUSIONS: Significantly higher BNP levels in patients with previous MI and IVCD suggest more severe heart failure than in their counterparts without IVCD with comparable LV ejection fraction. In patients with LAH and LPH, levels of BNP were insignificantly higher than in patients without IVCD. The highest BNP level was found in patients with LBBB and RBBB. RESULTS: In post-MI patients with IVCD, the mean BNP level was significantly higher than in their counterparts without IVCD (p < 0.001) and in healthy subjects (p < 0.001). Thirty two patients with a previous MI, but without IVCD, served as controls, whereas 15 healthy subjects entered the comparative group. Of them, 126 patients had IVCD: 31, left bundle branch block (LBBB) 36, right bundle branch block (RBBB) 30, left anterior hemiblock (LAH) and 29, left posterior hemiblock (LPH). METHODS: In 2004-2005 during standard follow-up at 6 mo after acute MI in 158 subjects, BNP was measured using an immunoenzymatic method. N2 - BACKGROUND: Levels of B-type natriuretic peptide (BNP), a significant marker of left ventricular (LV) dysfunction, may provide information on the severity of heart failure in patients with intraventricular conduction defects (IVCD).The aim of this study was to measure serum BNP levels in post-myocardial infarction (MI) patients with IVCD. T1 - Post-myocardial infarction intraventricular conduction defects and B-type natriuretic peptide levels.
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