Plasma markers to risk stratify for heart failure in atrial fibrillation.

B This article refers to 'Serial assessment of biomarkers and heart failure outcomes in patients with atrial fibrillation' by K. Oyama I et al i ., published in this issue on pages 832-841. b The incidence and prevalence of atrial fibrillation (AF), by far the most common cardiac arrhythmia, has risen over the last 30 years. Therefore, this data set offers no internal comparison of AF and sinus rhythm with respect to the performance of the three markers in predicting HF hospitalization or HF death. [Extracted from the article]