Effect of myocardial scar size on the risk of ventricular arrhythmias in patients with chronic total coronary occlusion.

Background: The presence of an untreated chronic total coronary occlusion (CTO) is associated with a higher risk of ventricular arrhythmias (VAs). This increased risk may be modulated by the presence of an existing scar.

Objectives: To evaluate whether scar size is associated with VA in patients with an implantable cardioverter-defibrillator (ICD) and a CTO.

Early, de novo atrial fibrillation after coronary artery bypass grafting: Facts and features.

Unlabelled: Knowledge of the mechanism underlying post-operative atrial fibrillation (PoAF) is essential for development of preventive measures. The incidence and characteristics of both PoAF and supraventricular premature beats triggering PoAF, their interrelationship and alterations over time have never been examined. The goal of this study is therefore to examine the correlation between the incidence and characteristics of supraventricular premature beats (SVPBs) and PoAF episodes in patients undergoing CABG in the first five post-operative days.

Hemodynamic deterioration precedes onset of ventricular tachyarrhythmia after Heartmate II implantation.

Background: Early postoperative ventricular tachyarrhythmia (PoVT) after left ventricular assist device (LVAD) implantation are common and associated with higher mortality-rates. At present, there is no data on initiation of these PoVT and the role of alterations in cardiac hemodynamics.

Case Presentation: A LVAD was implanted in a patient with end-stage heart failure due to a ischemic cardiomyopathy.