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Appearance of Atrial Rhythm with Absent P Wave in Longstanding Atrial Fibrillation

1974; Elsevier BV; Volume: 66; Issue: 2 Linguagem: Inglês

10.1378/chest.66.2.172

1931-3543

Howard S. Frıedman, J. Anthony Gomes, ANTHONY R. TARDIO, Rafael Levites, Jacob I. Haft,

Cardiac electrophysiology and arrhythmias

A man with rheumatic heart disease and longstanding atrial fibrillation had an electrocardiogram that showed a regular rhythm without atrial activity. Through use of various techniques atrial depolarization was identified Other features of this rhythm disturbance included digitalis-induced Mobitz type 2 AV block, concomitant Mobitz type 1 and type 2 AY block and possible "lone left atrial rhythm" with electromechanical dissociation. A man with rheumatic heart disease and longstanding atrial fibrillation had an electrocardiogram that showed a regular rhythm without atrial activity. Through use of various techniques atrial depolarization was identified Other features of this rhythm disturbance included digitalis-induced Mobitz type 2 AV block, concomitant Mobitz type 1 and type 2 AY block and possible "lone left atrial rhythm" with electromechanical dissociation.