Syncope in a febrile state: A case report of Brugada syndrome.

In 1992, Brugada and Brugada first described a new entity, which became known as Brugada syndrome, that is associated with a high risk of ventricular arrhythmias and sudden cardiac death in patients without structural heart disease. This syndrome is characterized by a distinct electrocardiographic phenotype, type 1 Brugada pattern, consisting of a coved ST-segment elevation (≥0.2 mV) followed by a negative T wave in more than one right precordial lead.

Non-ST elevation acute coronary syndrome: QRS duration and long-term prognosis.

Background: Recent studies have demonstrated that QRS duration (QRSd) is associated with poor prognosis in heart failure and ST-elevation myocardial infarction. Less is known about the prognostic importance of QRSd in patients with non-ST elevation acute coronary syndrome (non-ST ACS).

Aim: To determine if admission QRSd is associated with 1-year mortality in non-ST ACS.

Impact of atrial fibrillation in acute coronary syndromes.

Introduction: Atrial fibrillation (AF) is a relatively common arrhythmia in the context of acute coronary syndromes (ACS). However, the impact of AF on these patients' survival is not well established. The present study aimed to estimate the prevalence of AF in ACS patients and to evaluate its impact on in-hospital and six-month post-event mortality, from any cause.

Cardiovascular toxicity of cocaine of iatrogenic origin. Case report.

The use of cocaine as an illicit drug is associated with various cardiovascular events. In recent decades, because of growing levels of consumption, there has been an increasing incidence of these complications. At the same time, cocaine is also widely used as a local anesthetic, mainly in nasal surgery.

Sudden death and variant angina.

Variant angina is defined by chest pain occurring at rest associated with transitory ST segment elevation on ECG, and is caused by a spasm of a coronary artery. Frequently, variant angina is associated with atherosclerotic coronary obstruction and patients with normal coronary arteries are rare. Patients with variant angina and normal coronary arteries have good prognosis, and the development of ventricular arrhythmias or sudden death is rare.