CBS 2019
CBSMD教育中心
中 文

Acute Coronary Syndrom

Abstract

Recommended Article

Long-term outcomes after myocardial infarction in middle-aged and older patients with congenital heart disease-a nationwide study Invasive Versus Medical Management in Patients With Prior Coronary Artery Bypass Surgery With a Non-ST Segment Elevation Acute Coronary Syndrome: A Pilot Randomized Controlled Trial BMI, Infarct Size, and Clinical Outcomes Following Primary PCI Patient-Level Analysis From 6 Randomized Trials Effect of alirocumab on major adverse cardiovascular events according to renal function in patients with a recent acute coronary syndrome: prespecified analysis from the ODYSSEY OUTCOMES randomized clinical trial Effect of Medication Co-payment Vouchers on P2Y12 Inhibitor Use and Major Adverse Cardiovascular Events Among Patients With Myocardial Infarction: The ARTEMIS Randomized Clinical Trial Spontaneous Coronary Artery Dissection: Current State of the Science: A Scientific Statement From the American Heart Association Acute Noncardiac Organ Failure in Acute Myocardial Infarction With Cardiogenic Shock The (R)Evolution of the CICU - Better for the Patient, Better for Education

Original Research2020 Jul 15;S0167-5273(20)33449-5.

JOURNAL:Int J Cardiol. Article Link

The prognostic role of mid-range ejection fraction in ST-segment elevation myocardial infarction

M Alkhalil, A Kearney, D MacElhatton et al. Keywords: mid-range ejection fraction; STEMI; suboptimal medical therapy; renal dysfunction

ABSTRACT

OBJECIVE - There is a paucity of studies investigating the impact of mid-range ejection fraction (mrEF) on clinical outcomes, including ventricular arrhythmias, in ST-segment-elevation myocardial infarction (STEMI). We sought to investigate the prognostic role of mrEF post STEMI and whether recommended medical therapy may modify future risk.


METHODS - 533 consecutive patients from a single large-volume centre who underwent primary percutaneous coronary intervention were included. Reduced EF (<40%), mrEF (40-49%) and preserved EF (≥50%) were defined according to the European Society of Cardiology guidelines. Clinical outcomes were prospectively collected, and the primary endpoint was defined as the composite of death, re-admission with heart failure, sustained ventricular arrhythmia requiring hospitalisation or implantable cardioverter defibrillator over three years follow-up.


RESULTS - There was a stepwise increase in the primary endpoint according to EF group (8%, 17%, 30%, P < .001), which was derived from each individual component. Compared to preserved EF, patients with mrEF had significantly higher risk [HR 4.08 (95%CI 2.38 to 6.99), P < .001]. The use of suboptimal medical therapy was associated with increased future risk, particularly in mrEF [HR 2.62, (95%CI 1.18 to 5.83), P = .018]. The proportion of mrEF patients who experience the primary endpoint was significantly different according the status of kidney function and recommended medical therapy (8%, 20%, 33%, 50%, P < .001).


CONCLUSIONS - Patients presenting with mrEF following STEMI had increased risk of death, heart failure hospitalisation and ventricular arrhythmias compared to preserved EF. Suboptimal medical therapy in mrEF was associated with increased adverse events, particularly in patients with renal dysfunction.


Copyright © 2020. Published by Elsevier B.V.