CBS 2019
CBSMD教育中心
中 文

ASCVD Prevention

Abstract

Recommended Article

Canagliflozin and Renal Outcomes in Type 2 Diabetes and Nephropathy Coronary calcification in the diagnosis of coronary artery disease Sequence variations in PCSK9, low LDL, and protection against coronary heart disease Endocardium Minimally Contributes to Coronary Endothelium in the Embryonic Ventricular Free Walls Impact of Abnormal Coronary Reactivity on Long-Term Clinical Outcomes in Women Noninvasive Nuclear SPECT Myocardial Blood Flow Quantitation to Guide Management for Coronary Artery Disease Wearable Cardioverter-Defibrillator Therapy for the Prevention of Sudden Cardiac Death A Systematic Review and Meta-Analysis Colchicine Reduces Cardiovascular Events in Chronic Coronary Disease

Original Research2020 Jun 1;41(21):1988-1999.

JOURNAL:Eur Heart J. Article Link

Simple Electrocardiographic Measures Improve Sudden Arrhythmic Death Prediction in Coronary Disease

NA Chatterjee, JT Tikkanen, PREDETERMINE Investigators et al. Keywords: sudden death; arrhythmic death; electrocardiogram; CHD

ABSTRACT

AIMS -  To determine whether the combination of standard electrocardiographic (ECG) markers reflecting domains of arrhythmic risk improves sudden and/or arrhythmic death (SAD) risk stratification in patients with coronary heart disease (CHD).

 

METHODS AND RESULTS -  The association between ECG markers and SAD was examined in a derivation cohort (PREDETERMINE; N = 5462) with adjustment for clinical risk factors, left ventricular ejection fraction (LVEF), and competing risk. Competing outcome models assessed the differential association of ECG markers with SAD and competing mortality. The predictive value of a derived ECG score was then validated (ARTEMIS; N = 1900). In the derivation cohort, the 5-year cumulative incidence of SAD was 1.5% [95% confidence interval (CI) 1.1-1.9] and 6.2% (95% CI 4.5-8.3) in those with a low- and high-risk ECG score, respectively (P for Δ < 0.001). A high-risk ECG score was more strongly associated with SAD than non-SAD mortality (adjusted hazard ratios = 2.87 vs. 1.38 respectively; P for Δ = 0.003) and the proportion of deaths due to SAD was greater in the high vs. low risk groups (24.9% vs. 16.5%, P for Δ = 0.03). Similar findings were observed in the validation cohort. The addition of ECG markers to a clinical risk factor model inclusive of LVEF improved indices of discrimination and reclassification in both derivation and validation cohorts, including correct reclassification of 28% of patients in the validation cohort [net reclassification improvement 28 (7-49%), P = 0.009].

 

CONCLUSION -  For patients with CHD, an externally validated ECG score enriched for both absolute and proportional SAD risk and significantly improved risk stratification compared to standard clinical risk factors including LVEF.

 

CLINICAL TRIAL REGISTRATION -  https://clinicaltrials.gov/ct2/show/NCT01114269. ClinicalTrials.gov ID NCT01114269.