P5338Tpeak-Tend/QT ratio for arrhythmic risk stratification: a meta-analysis

Risk stratification for arrhythmic sudden cardiac death: identifying the roadblocks.

Athough it is difficult to determine the precise number, the range for the number of sudden cardiac deaths (SCDs) per year in the United States alone has been reported from 184 000 to 462 000,1 with estimates that 50% to 70% are due to tachyarrhythmic mechanisms. Regardless of where within this range the true number lies, this represents a large epidemiological problem that warrants serious att...

Novel conduction-repolarization indices for the stratification of arrhythmic risk

Sudden cardiac death (SCD) affects approximately 800,000 individuals per annum globally. It is most frequently due to cardiac tachy-arrhythmias, which include mono-morphic or polymorphic ventricular tachycardia (VT), torsade de pointes and ventricular fibrillation (VF). Risk stratification for SCD remains a challenging problem in clinical practice. Patients with structural heart disease or card...

Arrhythmic Risk Stratification by Programmed Ventricular Stimulation in Brugada Syndrome

One of the most controversial issues debated by cardiac electrophysiologists during the past decade has been whether programmed ventricular stimulation (PVS) plays any role in the arrhythmic risk stratification of the Brugada syndrome (BrS). The results of the multicenter study published in 2003 by the Brugada brothers were unequivocal. In a study involving 408 BrS individuals with no previous ...

Risk stratification for arrhythmic death in an emergency department cohort: a new method of nonlinear PD2i analysis of the ECG

Heart rate variability (HRV) reflects both cardiac autonomic function and risk of sudden arrhythmic death (AD). Indices of HRV based on linear stochastic models are independent risk factors for AD in postmyocardial infarction (MI) cohorts. Indices based on nonlinear deterministic models have a higher sensitivity and specificity for predicting AD in retrospective data. A new nonlinear determinis...

Venous Thromboembolism Risk Stratification and Chemoprophylaxis: A Meta-Analysis Finds No Benefit, More Risk