In this single-center retrospective study, El-Am et al (J Am Coll Cardiol 2019;79:589,
PMID 30732713) sought to assess procedural outcomes related to direct current cardioversion
(CV) in patients with cardiac amyloidosis (CA). In addition to atrial arrhythmias
such as atrial fibrillation (AF), atrial flutter (AFL), and atrial tachycardia (AT),
patients with CA are predisposed to conduction disease, heart failure, intracardiac
thrombi, and sudden death. All patients with CA referred for CV over a 12-year period
were included and matched in a 2:1 ratio for type of arrhythmia (AF, AFL, or AT),
age, sex, and date of CV (within 3 months) to controls for comparison. Success was
defined as restoration of sinus rhythm (SR) with CV and maintenance while in the recovery
unit, and failure was lack of restoration of SR or recurrence while still in the recovery
unit. All patients were on therapeutic anticoagulation at the time of CV, and transesophageal
echocardiography (TEE) was performed before CV at the discretion of the referring
provider.
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Publication history
Published online: March 27, 2019
