background: the poisoning is mostly due to suicide and is observed in younger age groups. the systemic manifestations of alp poisoning are common but pernicious manifestations of them are cardiotoxicity, shock, and ards. the clinical hallmark of cardiotoxicity is arrhythmia. the aim of this study was to investigate cardiac arrhythmias in patients poisoned with alp who were admitted to razi hosp...

Cardiac arrhythmias are important contributors to morbidity and mortality in patients with pulmonary arterial hypertension (PAH). Such patients manifest a substrate resulting from altered autonomics, repolarization abnormalities, and ischemia. Supraventricular arrhythmias such as atrial fibrillation and flutter are associated with worsened outcomes, and maintenance of sinus rhythm is a goal. Su...

Patients with grown-up congenital heart (GUCH) disease pose a few unique problems for the cardiac electrophysiologist due to the myocardial substrate with high propensity for arrhythmias. Arrhythmias are the main reason for hospital admission in these patients and, unfortunately, in a significant proportion of these patients, these arrhythmic events could be life-threatening [1]. Furthermore, t...

Continuous monitoring of patients with acute myocardial infarction has demonstrated the frequent occurrence of arrhythmias in the first few days after the acute episode (Julian et al., 1964a; Robinson et al., 1964; Meltzer and Kitchell, 1966; Goble et al., 1966). It is claimed that the mortality of myocardial infarction increases when accompanied by arrhythmias (Rosenbaum and Levine, 1941; Impe...

Arrhythmias in pericardial syndromes have been poorly investigated and available data are mainly obtained from relevant studies however having different endpoints arrhythmias. Thus, the incidence prevalence of any type arrhythmias may be actually higher than generally considered. Atrial arrhythmias, atrial fibrillation flutter reported as most common rhythm disturbances setting acute pericardit...

BACKGROUND Arrhythmias are benign or lethal, depending on their sustainability and frequency. To determine why lethal arrhythmias are prone to occur in diseased hearts, usually characterized by nonuniform muscle contraction, we investigated the effect of nonuniformity on sustainability and frequency of triggered arrhythmias. METHODS AND RESULTS Force, membrane potential, and intracellular Ca(...