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Congestive Heart Failure

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Circulating sST2 and catestatin levels in patients with acute worsening of heart failure: a report from the CATSTAT-HF study Dapagliflozin in Patients with Heart Failure and Reduced Ejection Fraction Prdm16 Deficiency Leads to Age-Dependent Cardiac Hypertrophy, Adverse Remodeling, Mitochondrial Dysfunction, and Heart Failure A Randomized Controlled Trial to Evaluate the Safety and Efficacy of Cardiac Contractility Modulation A pragmatic approach to the use of inotropes for the management of acute and advanced heart failure: An expert panel consensus Natriuretic Peptide-Guided Heart Failure Therapy After the GUIDE-IT Study Cardiac and Kidney Benefits of Empagliflozin in Heart Failure Across the Spectrum of Kidney Function: Insights From EMPEROR-Reduced Angiotensin–Neprilysin Inhibition in Heart Failure with Preserved Ejection Fraction Dapagliflozin for treating chronic heart failure with reduced ejection fraction Longitudinal Change in Galectin-3 and Incident Cardiovascular Outcomes

Clinical TrialVolume 11, Issue 6, June 2018

JOURNAL:JACC Cardiovasc Imaging. Article Link

Long-Term Incremental Prognostic Value of Cardiovascular Magnetic Resonance After ST-Segment Elevation Myocardial Infarction A Study of the Collaborative Registry on CMR in STEMI

Symons R, Pontone G, Masci PG et al. Keywords: cardiovascular magnetic resonance; microvascular obstruction; myocardial infarction; risk stratification

ABSTRACT


OBJECTIVES - This study sought to investigate whether early post-infarction cardiac magnetic resonance (CMR) parameters provide additional long-term prognostic value beyond traditional outcome predictors in ST-segment elevation myocardial infarction (STEMI) patients.


BACKGROUND - Long-term prognostic significance of CMR in STEMI patients has not been assessed yet.

METHODS - This was a longitudinal study from a multicenter registry that prospectively included STEMI patients undergoing CMR after infarction. Between May 2003 and August 2015, 810 revascularized STEMI patients were included. CMR was performed at a median of 4 days after STEMI. Infarct size, microvascular obstruction (MVO), and left ventricular (LV) volumes and function were measured. Primary endpoint was a composite of all death and decompensated heart failure (HF).

RESULTS - During median follow-up of 5.5 years (range 1.0 to 13.1 years), primary endpoint occurred in 99 patients (39 deaths and 60 HF hospitalization). MVO was a strong predictor of the composite endpoint after correction for important clinical, CMR, and angiographic parameters, including age, LV systolic function, and infarct size. The independent prognostic value of MVO was confirmed in all multivariate models irrespective of whether it was included as a dichotomous (presence of MVO, hazard ratio [HR]: 1.985 to 1.995), continuous (MVO extent as % LV, HR: 1.095 to 1.097), or optimal cutoff value (MVO extent ≥2.6% of LV; HR: 3.185 to 3.199; p < 0.05 for all). MVO extent ≥2.6% of LV was a strong independent predictor of all death (HR: 2.055; 95% confidence interval: 1.076 to 3.925; p = 0.029) and HF hospitalization (HR: 5.999; 95% confidence interval: 3.251 to 11.069; p < 0.001). Finally, MVO extent ≥2.6% of LV provided incremental prognostic value over traditional outcome predictors (net reclassification improvement index: 0.16 to 0.30; p < 0.05 for all models).

CONCLUSIONS - Early post-infarction CMR-based MVO is a strong independent prognosticator in revascularized STEMI patients. Remarkably, MVO extent ≥2.6% of LV improved long-term risk stratification over traditional outcome predictors.

Copyright © 2018 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.