Pseudo–Ventricular Tachycardia Mimicking Malignant Arrhythmia in a Patient with Rapid Atrial Fibrillation

Artifacts can simulate arrhythmias such as atrial flutter, atrial fibrillation, and ventricular tachycardia. A case of pseudo-ventricular tachycardia is outlined in a patient with newly diagnosed atrial fibrillation, which made the diagnosis a special challenge. Characteristic signs of pseudo–ventricular tachycardia are described. This case reinforces the importance of recognizing artifacts to avoid unnecessary interventions, especially in the telemetry and critical care units. (American Journal of Critical Care. 2014;23:270–272)