CBS 2019
CBSMD教育中心
中 文

Acute Coronary Syndrom

Abstract

Recommended Article

Late Survival Benefit of Percutaneous Coronary Intervention Compared With Medical Therapy in Patients With Coronary Chronic Total Occlusion: A 10-Year Follow-Up Study Optimal medical therapy vs. coronary revascularization for patients presenting with chronic total occlusion: A meta-analysis of randomized controlled trials and propensity score adjusted studies Post-Discharge Bleeding and Mortality Following Acute Coronary Syndromes With or Without PCI Effects of clopidogrel vs. prasugrel vs. ticagrelor on endothelial function, inflammatory parameters, and platelet function in patients with acute coronary syndrome undergoing coronary artery stenting: a randomized, blinded, parallel study Acute Coronary Syndrome Following Transcatheter Aortic Valve Replacement Myocardial infarction with non-obstructive coronary arteries as compared with myocardial infarction and obstructive coronary disease: outcomes in a Medicare population Switching P2Y12-receptor inhibitors in patients with coronary artery disease Morphine and Cardiovascular Outcomes Among Patients With Non-ST-Segment Elevation Acute Coronary Syndromes Undergoing Coronary Angiography

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.