[Electrical storm in patients with implantable cardioverter-defibrillator].

Some patients receive multiple appropriate shocks during a short period of time, arrhythmic electrical storm (malignant ventricular arrhythmias resulting in device intervention > or = 3 times during 24 hours). It is a common implantable cardioverter-defibrillator therapy-related complication. The objectives of this study were to determine the incidence, characteristics, prognostic implications and therapeutic options of electrical storm.

[Non-invasive electrical markers in patients with the Brugada syndrome].

Throughout the 13 years of recognizing the Brugada syndrome as a separate entity, there has been a search for invasive and non-invasive markers for detecting risk of life-threatening arrhythmic events, particularly for asymptomatic individuals in whom the first manifestation may be sudden cardiac death. Hence, the preclinical diagnosis is pivotal for adequate and timely preventive measures. The objective of this study was to compare various non-invasive markers to characterize and stratify patients at risk.

Tpeak-Tend and Tpeak-Tend dispersion as risk factors for ventricular tachycardia/ventricular fibrillation in patients with the Brugada syndrome.

Objectives: Our objective in this study was to evaluate Tpeak-Tend interval (Tp-e) and other electrocardiographic parameters as risk factors for recurrence of life-threatening cardiac events in patients with the Brugada syndrome (BS).

Background: The Tp-e interval in the electrocardiogram (ECG) has been reported to predict life-threatening arrhythmias in the long QT syndrome.

Methods: Twenty-nine patients with the ECG pattern of BS and 29 healthy age- and gender-matched controls were studied.

[Sudden death due to electrical causes in individuals without demonstrable structural cardiac disease. Experience in Cuba].

Sudden cardiac death due to electrical causes in individuals with no evidence of structural heart disease is an important clinical and public health problem, and it is not yet solved. The objectives of this study were: to characterize patients reanimated from a sudden death event of electrical cause; to know the mediated evolution during a period of three years and to study premonitory electrical signs. 42 individuals were studied, 30 were male and 12 female, mean age 37.

[Brugada's syndrome: experience in Cuba in 2001].

The Brugada syndrome is the most frequent electrical cause of sudden death in patients with structurally normal heart. It is characterized by ST segment elevation in V1-V3 leads, pseudo right bundle branch block and proneness for episodes of life-threatening ventricular cardiac arrhythmias. The aim of this study was to characterize patients with Brugada syndrome identified in Cuba between 1995 and 2001.