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Figure 1 Incidence of Atrial Flutter Versus Atrial Fibrillation

In the cohort of cardiac transplant patients, the percentage of patients with any atrial flutter and fibrillation as well as the individual arrhythmias associated with the appropriate clinical setting are shown. Stable was defined as those without simultaneous severe transplant vasculopathy, sepsis, or acute rejection who are not in the immediate post-operative period while experiencing the arrhythmia as shown. Note that no atrial fibrillation was observed in stable cardiac transplant patients. In comparison, atrial flutter occurred in 4.6% of patients and, in 2.3%, required electrophysiological study and ablation. AFib = atrial fibrillation; Aflutter = atrial flutter.