BACKGROUND The incidence of non-ST elevation myocardial infarction (NSTEMI) is increasing. Although life-threatening ventricular arrhythmias have been well-documented in patients with ST elevation MI (STEMI), their incidence and importance in NSTEMI have not been examined in similar detail. We examined the incidence, predictors, and mortality rates of ventricular arrhythmias in a cohort of NSTE...

OBJECTIVES The aim of this study was to define the role of papillary muscles (PAPs) in post-infarction ventricular arrhythmias. BACKGROUND Papillary muscles have been implicated in arrhythmogenesis; however, their role in post-infarction ventricular arrhythmias has not been well-defined. METHODS In a series of 9 patients (age 65 +/- 9 years, ejection fraction 0.36 +/- 0.1) with post-infarct...

Electrocardiographic characteristics can be useful in differentiating between right ventricular outflow tract (RVOT) and aortic sinus cusp (ASC) ventricular arrhythmias. Ventricular arrhythmias originating from ASC, however, show preferential conduction to RVOT that may render the algorithms of electrocardiographic characteristics less reliable. Even though there are few reports describing vent...

mitral valve prolapse (mvp) is a relatively frequent valvular abnormality. in both children and adults with mvp, an increased incidence of ventricular arrhythmias has been reported. qt dispersion, defined as the difference in duration between the longest qt interval and the shortest one, for a given set of electrocardiographic leads has been proposed as a sign of regional difference in cardiac ...

conclusions the findings suggest that chronic coadministration of nandrolone with moderate-intensity endurance exercise facilitates the vf occurrence in rat. complementary studies are needed to elucidate the involved mechanisms of this abnormality. results nandrolone, exercise, and their combination were associated with heart hypertrophy. exercise could prevent the incremental effect of nandrol...

We describe eight patients treated for angina with prenylamine who developed life-threatening ventricular arrhythmias after QT interval prolongation. When prenylamine administration was stopped QT interval shortened to within normal values, while the ventricular arrhythmias were controlled by a temporary ventricular pacemaker and disappeared after several days. We stress the importance of surve...

Technological advances during the past decade have significantly enhanced our ability to successfully map and ablate ventricular arrhythmias in patients with a structurally normal heart, as well as various forms of underlying cardiac disease. Increased recognition of the deleterious effects of ventricular arrhythmias, such as the potential of frequent premature ventricular complexes (PVCs) to i...