BACKGROUND Tissues with high energy demands, such as the heart, are susceptible to the effects of mitochondrial DNA point mutations. OBJECTIVE To investigate the frequency of Wolff-Parkinson-White (WPW) syndrome among a phenotypically and genotypically homogeneous cohort of patients with MELAS (mitochondrial encephalopathy, lactic acidosis, and strokelike episodes) and the A3243G mutation mos...

Wolff-Parkinson-White (WPW) syndrome is a cardiac conduction disorder that presents with potentially life-threatening consequences. Wolff-Parkinson-White syndrome-induced dysrhythmias account for 20% of all supraventricular tachycardias that occur in the general population. Clinical presentations range from no symptoms to a sudden cardiac arrest. The risk of sudden death is always present with ...

Electrophysiological findings suggest that concealed anterograde conduction through accessory pathways may exist even during sinus rhythm in patients with so-called concealed Wolff-Parkinson-White (WPW) syndrome. To evaluate the pre-excitation characteristics in various types of WPW syndrome, high-resolution electrocardiograms were analyzed in 81 consecutive WPW syndrome patients and 50 age-mat...

Percutenous catheter ablation of the accessory pathway in Wolff-Parkinson-White syndrome is a highly successful mode of therapy. Sudden cardiac arrest survivors associated with WPW syndrome should undergo radiofrequency catheter ablation. WPW syndrome associated with familial atrial fibrillation is a very rare condition. Herein, we describe a case who presented with sudden cardiac arrest second...

Wolff-Parkinson-White (WPW) syndrome occurs due to an accessory atrioventricular bypass tract. The prevalence of WPW electrocardiographic pattern has been estimated to be 0.1%-0.3% in the general population, with the annual incidence of new cases reported to be 4 per 100,000 population per year (l). While the commonest age of presentation is the second decade of life (2)/ unusually tachycardia ...

BACKGROUND Wolff-Parkinson-White (WPW) syndrome is a disease associated with episodes of supraventricular tachycardia and ventricular pre-excitation or atrial fibrillation. WPW is characterized by an aberrant electrical conduction pathway between atria and ventricles. CASE REPORT The major anesthetic problem connected with WPW syndrome is the risk of tachyarrhythmias due to accessory pathway....

Five cases of intermittent Wolff-Parkinson-White (WPW) syndrome are described. Two cases showed a tendency to become normal during acceleration. In these cases, however, short PP intervals (in comparison to longer ones in their proximity) were followed by WPW complexes. In another case constant WPW syndrome appeared during acceleration. A fourth case presented with intermittent WPW complexes wh...

noncompaction of the ventricular myocardium is an embryonic cardiomyopathy that is increasingly being recognized. noncompaction of lv myocardium, right ventricular myocardium, or both can occur in isolation, in congenital heart diseases, in valvular heart diseases, in neuromuscular disorders, skeletal abnormalities and in endocrinologic abnormalities. clinical manifestations of ventricular non-...

Twenty-six patients with Wolff-Parkinson-White (WPW) syndrome were studied by echocardiography. They were classified into the following WPW types: anterior right ventricular pre-excitation (Type I) -six patients; posterior right ventricular pre-excitation (Type II) -six patients; posterior left ventricular preexcitation (Type III) fourteen patients. Twenty-three patients were in WPW at the time...

BACKGROUND Paroxysmal atrial fibrillation (PAF) develops in up to one-third of patients with the Wolff Parkinson-White syndrome (WPW). The reason for this high incidence of PAF in the WPW syndrome is not yet clearly understood. When PAF appears in patients with WPW syndrome who have anterograde conduction via the accessory pathway (AP), it may be life-threatening if an extremely rapid ventricul...