Using an implantable loop recorder (ILR) to screen older individuals for atrial fibrillation (AF) may be more beneficial when NT-proBNP levels are high, according to a post hoc analysis of the LOOP ...

Atrial fibrillation was diagnosed in 477 of 1,501 (31.8%) participants in the monitoring group and 550 of 4,503 (12.2%) participants in the control group (HR 3.17, 95% CI 2.81-3.59, P<0.001), reported ...