[Non-linear analysis of electrocardiographic signals as a non-invasive predictive tool for major ventricular arrhythmias]. / L'analisi non lineare di tracciati elettrocardiografici come strumento predittivo non invasive di aritmie ventricolari maggiori.

ABSTRACT

The aim of this study was to assess the effectiveness of different methods of non-linear analysis of the ECG in the risk stratification of patients with ventricular arrhythmias. These non-invasive parameters were correlated with the results of the electrophysiological study (EPS). We evaluated 25 patients with a history of cardiac arrest, syncope, sustained or non-sustained ventricular tachycardia. The study group was compared with a control group of 25 healthy subjects. All patients underwent both EPS and non-linear analysis procedures applied to their ECG recording. A comparison between the results of non-linear analysis of the ECG and EPS was performed. Results are presented and discussed.