The aim of this study was to analyse the predictive value of isolated infarcts affecting the insular cortex in identifying patients with newly diagnosed atrial fibrillation (NDAF) during the acute hospitalization period from a large, prospectively collected stroke cohort.[11] In a second step, we aimed to investigate the putative role of plasma MR-proANP levels in predicting NDAF and its potential additive value compared to stroke location and other known predictors. The gene discussed is NPPA; the disease is stroke disorder.