The effects of premature ventricular stimuli were studied in two groups of dogs with infarcts, one group subjected to permanent occlusion of the left anterior descending coronary artery and the other to temporary occlusion for 2 hours. In dogs with permanent occlusion, spontaneous ventricular arrhythmias occurred after 3-6 hours. In 13 dogs with temporary occlusion, ventricular arrhythmias occu...

OBJECTIVES We sought to assess outcomes in a series of young patients with Marfan syndrome and to define the prevalence of ventricular arrhythmias in this patient population. BACKGROUND While sudden death is a well-recognized outcome in Marfan syndrome, ventricular arrhythmias are not well described. METHODS Patients were followed with echocardiography, electrocardiography, and ambulatory e...

The effects of premature ventricular stimuli were studied in two groups of dogs with infarcts, one group subjected to permanent occlusion of the left anterior descending coronary artery and the other to temporary occlusion for 2 hours. In dogs with permanent occlusion, spontaneous ventricular arrhythmias occurred after 3-6 hours. In 13 dogs with temporary occlusion, ventricular arrhythmias occu...

After hospital discharge, 114 patients with variant angina were followed for a mean period of 26 months. Six died suddenly and 13 others were resuscitated from sudden cardiac death. The extent of coronary disease and the prevalence of left ventricular dysfunction in these 19 "sudden death" patients were similar to those in the patients who did not experience sudden death ("survivors"). During s...

Important electrophysiological alterations that may predispose hearts to arrhythmias have been described for hypertrophied myocytes, and hypertrophy coupled with ischemia has been associated with an increased incidence of sudden death; however, an influence of hypertrophy on reperfusion arrhythmias has not been previously described. We hypothesized that reperfusion-associated arrhythmias would ...

OBJECTIVE To verify the prognostic value of exercise induced ventricular arrhythmias in patients with chagasic cardiomyopathy. METHODS 69 consecutive patients (37 male, 32 female; age range 21-67 years) with chronic chagasic cardiomyopathy and ventricular arrhythmias (more than 10 ventricular premature complexes per hour) were evaluated during treadmill exercise testing, using the Bruce proto...

Dangerous or long lasting ventricular arrhythmias developed in three patients who had sustained an electrical injury in which current passed through the thorax. In all three cases there was a delay of 8-12 hours between the injury and the onset of symptoms. The ventricular arrhythmias were severe and long lasting. In two of the three patients, ventricular tachycardia or ventricular fibrillation...

Background—Ventricular arrhythmias are a frequent finding in congestive heart failure (CHF) patients and a cause of concern for physicians caring for them. Previous studies have reached conflicting conclusions regarding the importance of ventricular arrhythmias as predictors of sudden death in patients with CHF. This study examined the independent predictive value of ventricular arrhythmias for...