Biatrial Tachycardia

Biatrial Tachycardia

The approach to successful ablation of arrhythmias is based on elucidating the underlying mechanism and relative dimensions of the tachycardia circuit. Activation mapping readily distinguishes macroreentry from focal arrhythmias, the latter of which have centrifugal spread. When macroreentrant atrial tachycardia is suspected, entrainment maneuvers with atrial overdrive pacing at various anatomi...

Postmitral valve replacement biatrial, septal macroreentrant atrial tachycardia developing after perimitral flutter ablation.

Biatrial cardiac myxoma.

A routine abdominal sonography study detected a round mass in the right atrium of a 66-year-old man, who was then transferred to our hospital for further evaluation. On physical examination, the patient appeared healthy, with no signs of discomfort or heart failure. Cardiac auscultation revealed normal heart sounds with a mild respiratory-dependant systolic murmur at the apex. Laboratory studie...

Diagnosis of Ventricular Tachycardia Electrocardiography

Les signes clectrocardiographiques classiques nc sont pas toujours suMisants pour ·le diagnostic de la tachycardie ventriculaire. Nous avons insiste d'une part sur !'importance diagnostique des complex de ca· ptures et d'auters part sur l'import.anre des procedcs nouveux Tels :  1- Enrcgishemcnt du potentiel du faisreau de  2- Stimulation references endocavitaire.

Biatrial activation in isthmus-dependent atrial flutter.

BACKGROUND The aim of this study was to determine the biatrial activation pattern in isthmus-dependent atrial flutter (AFL) to understand the functional interatrial connections and the activation pattern of the left atrium (LA). METHODS AND RESULTS Biatrial activation was performed, using an electroanatomic mapping system, in 10 patients undergoing right atrial isthmus ablation for counterclo...