Cardiac arrhythmias are disturbances in the rhythm of the heart, manifested by irregularity or by abnormally fast rates (tachycardias) or abnormally slow rates (bradycardias). Patients who perceive these abnormalities most frequently observe palpitations,which somedescribe as the sensation of ‘my heart turning over in my chest’, or awareness that their hearts are beating rapidly or slowly. Othe...

Background—The Y1102 polymorphism of the cardiac sodium channel (SCN5A) gene has been found in 13% of black Americans. It has been linked to lethal arrhythmias in black families with ventricular tachycardia. The prevalence of the Y1102 polymorphism in a series of sudden death in blacks is unknown. Methods and Results—We investigated the incidence of the Y1102 polymorphism in a series of 289 sud...

Tuberous sclerosis complex is an autosomal dominant condition with variable penetrance. It characterized by tuberose deposits in various organ systems. Although clinical features predominate neurocutaneous manifestations, cardiac, kidney, and lung involvement are common. Cardiac marked the presence of multiple rhabdomyomas some cases arrhythmias. In absence symptoms, require no specific treatme...

BACKGROUND The Y1102 polymorphism of the cardiac sodium channel (SCN5A) gene has been found in 13% of black Americans. It has been linked to lethal arrhythmias in black families with ventricular tachycardia. The prevalence of the Y1102 polymorphism in a series of sudden death in blacks is unknown. METHODS AND RESULTS We investigated the incidence of the Y1102 polymorphism in a series of 289 s...

Dear Editor, The association between cardiac arrhythmias and obstructive sleep apnoea (OSA) is well established.1-5 Both conditions lead to significant morbidity and mortality if left untreated.6 Recurrent episodes of apnoea, hypoxaemia and hypercapnia in patients with OSA lead to chemoreceptor excitation, increased sympathetic drive and cardiac arrhythmias.7-9 Given the crucial role of oxygen ...

introduction: previous studies have raised the probably of cardiac manifestation in tramadol poisoning. however, conclusive information on electrocardiographic (ecg) abnormalities of tramadol overdose remains to be explained. therefore, the present study aimed to evaluate the epidemiology of ecg abnormalities in tramadol poisoned patients. methods: in a prospective cross-sectional study, all pa...