Prognostic Significance of New-Onset Atrial Fibrillation in Patients With Non-Hodgkin's Lymphoma Treated With Anthracyclines.

Cancer therapeutics-related cardiac dysfunction induced by anthracycline is highly problematic, and its early recognition is of importance. Atrial fibrillation (AF) is sometimes seen after anthracycline chemotherapy. We aimed to test whether new-onset AF predicts anthracycline-induced heart failure. We prospectively studied 249 lymphoma patients who received anthracyclines. The patients were followed up with a frequent electrocardiographic examination. Fifteen patients (6%) newly developed AF after the chemotherapy, and during a mean follow-up of 34 months, they had a higher incidence of acute heart failure (40% vs 3.8%; p <0.001) and greater all-cause mortality (60% vs 14.1%; p <0.001) than those without AF. The onset of AF preceded the development of heart failure by a mean of 2.4 months. New-onset AF was independently associated with both acute heart failure (hazard ratio 12.78; p <0.001) and all-cause mortality (hazard ratio 4.77; p <0.001). The cumulative anthracycline dose did not differ between the patients with and without heart failure, yet it was another independent predictor of the mortality. In conclusion, new-onset AF may predict unfavorable outcomes after anthracycline chemotherapy in patients with malignant lymphoma.