The boy was treated with oxygen, diuretics, digoxin, afterload reduction, and anticoagulation. Despite improvement in symptoms, he remained persistently tachycardic, with variable AV block during sleep. Amiodarone therapy was initiated for presumed automatic atrial tachycardia. Because tachycardia remained uncontrolled, he underwent an electrophysiological study, and a single right atrial tachycardia focus was ablated (Fig 3⇓); he has remained in sinus rhythm since then. Gradual but complete resolution of his cardiac dysfunction was noted over a 12- to 16-week period.
The editor of Images in Cardiovascular Medicine is Hugh A. McAllister, Jr, MD, Chief, Department of Pathology, St Luke’s Episcopal Hospital and Texas Heart Institute, and Clinical Professor of Pathology, University of Texas Medical School and Baylor College of Medicine.
Circulation encourages readers to submit cardiovascular images to Dr Hugh A. McAllister, Jr, St Luke’s Episcopal Hospital and Texas Heart Institute, 6720 Bertner, MC 4-265, Houston, TX 77030.
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