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[Correspondence] “Off the pulse” about incidental atrial fibrillation

In their Comment, Brian Potter and Jaques LeLorier (July 11, p 113)1 criticised the authors of the Framingham Heart Study2 on trends in atrial fibrillation for concluding that measures are needed to enhance early detection and screening. They questioned the method and cost-effectiveness of surveillance, and the likely yield and outcome of the undiagnosed population with atrial fibrillation, which they felt represented patients at lowest risk. However, they were seemingly unaware of recent published work addressing these very issues.