Relation of B-type natriuretic peptide early after acute myocardial infarction to left ventricular diastolic function and extent of myocardial damage determined by magnetic resonance imaging

The American Journal of Cardiology
Bernard P PaelinckHildo J Lamb

Abstract

Early after acute myocardial infarction, the relation between plasma B-type natriuretic peptide (BNP) and extent of myocardial scar formation and diastolic dysfunction remains unclear. In 32 consecutive patients early (5 +/- 3 days) after a first acute myocardial infarction, delayed contrast-enhanced magnetic resonance (MR) imaging was performed to define myocardial scar. Diastolic function was assessed using phase-contrast MR measurements of mitral flow and septal tissue velocities (tissue MR imaging) to estimate left ventricular (LV) filling pressures. MR study was immediately followed by BNP measurement. BNP related to LV ejection fraction (r = -0.52, p = 0.002), extent of myocardial scar (percent delayed hyperenhancement of LV mass, r = 0.49, p = 0.005; transmural index, r = 0.58, p <0.001), and estimated LV filling pressures (ratio of early diastolic mitral flow velocity to early diastolic mitral annular velocity, r = 0.51, p = 0.003). In multivariate analysis, transmural index and early diastolic mitral flow velocity/early diastolic mitral annular velocity were independent predictors of BNP levels (p <0.05, power of 0.99 at alpha = 0.05). In conclusion, among patients with recent myocardial infarction, high BNP levels are...Continue Reading

References

Jan 26, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Peter KellmanAnthony H Aletras
Aug 2, 2003·Lancet·James A de LemosMark H Drazner
Apr 6, 2005·Journal of the American College of Cardiology·Bernard P PaelinckHildo J Lamb
Apr 12, 2005·The American Journal of Cardiology·Theodorus A M KaandorpAlbert de Roos
Mar 15, 2008·Critical Pathways in Cardiology·Mandeep R Mehra, Alan Maisel

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Citations

Jan 25, 2011·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Jérôme CaudronJean-Nicolas Dacher
Feb 22, 2012·International Journal of Cardiology·Sally J Aldous
Apr 3, 2008·Journal of Cardiac Failure·Andreas P KalogeropoulosDimitrios Alexopoulos
May 5, 2009·International Journal of Cardiology·Oliver BruderPeter Hunold

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