The findings of 24 hour ambulatory electrocardiography and monitoring with the Cardiomemo, a device recording 32 seconds of electrocardiogram during symptoms, were compared in 20 patients with symptoms suggestive of arrhythmia. Ambulatory electrocardiography showed arrhythmia in seven patients, extrasystoles in six, and normal findings in seven. Nine patients failed to transmit any Cardiomemo r...

Supraventricular tachycardia (SVT) is the most common arrhythmia in children and is especially common in infants. SVT is typically thought of as an acute condition; however, if unrecognized, a persistent tachyarrhythmia can progress to a state of cardiac contractile dysfunction known as tachycardia-induced cardiomyopathy. A high index of suspicion for an underlying arrhythmia is needed in the w...

A case of bidirectional tachycardia is presented in a patient with cardiomyopathy, pulmonary emboli, and digitalis toxicity. The arrhythmia has usually been considered ventricular in origin. A supraventricular origin has also been suggested. Simultaneous recordings of standard electrocardiographic leads and His bundle potentials demonstrated that the abnormal rhythm originated in the left ventr...

Electrocardiographic (ECG) artefacts may closely simulate both supraventricular and ventricular tachycardias. We describe a case initially diagnosed as rapid atrial fibrillation, based on 12-lead surface ECG (especially the limb leads) and monitor tracing. The arrhythmia was resistant to beta blockers. Because of the at times apparently regular rhythm, an esophageal ECG recording was performed,...

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A proportion of patients with atrial fibrillation and other supraventricular arrhythmias remain refractory to medical therapy and require definitive treatment. In some cases, the arrythmia may be cured by catheter or surgical ablation. Techniques have recently been developed for disruption of the substrate for atrioventricular nodal reentry tachycardia'-3 and atrial flutter,4'5 and a potential ...

Some traditional cardiomyopathies are well known. For instance peripartum cardiomyopathy. Complete recovery occurs in 50% percentage. Similarly tachycardiomyopathy can be caused by a heavy burden of ventricular ectopics, or by an incessant supraventricular tachycardia, or by repeated episodes of ventricular tachycardia. Ensite or Cartographic mapping and ablation of the arrhythmia can abolish t...

During 1980-7, 23 pregnancies of 22-38 weeks' duration were investigated for fetal tachycardia. Twelve were cases of supraventricular tachycardia, eight of atrial flutter, and three cases in which the rhythm varied between supraventricular tachycardia and atrial flutter. In 11 cases the fetus had developed non-immune fetal hydrops before referral; 12 cases were non-hydropic at referral but one ...

OBJECTIVES This study was performed to determine the incidence of symptomatic, sustained atrial fibrillation in a group of patients with paroxysmal supraventricular tachycardia. The effects of the mechanism of paroxysmal supraventricular tachycardia (atrioventricular [AV] node reentry vs. AV reentry through an accessory pathway) and heart rate during the tachycardia on the occurrence of atrial ...

background supraventricular tachycardia (svt) is the most frequent arrhythmia requiring a medical treatment in neonates. objectives the aim of our study was to evaluate and manage neonatal supraventricular tachycardia. methods this study was performed on 22 newborns that were diagnosed with svt at two neonatal intensive care units (nicu) in south west of iran from october 2012 to october 2015. ...