Harvard Heart Letter
Taking a look at the latest trends in heart rhythm monitoring
Bulky recorders with lots of wires are being replaced by small patches and implanted devices. An abnormal heart rhythm — when your heartbeat is too fast, too slow, or irregular — can be tricky to detect and diagnose. These electrical misfires are often short-lived and sporadic, so they’re rarely seen on a routine electrocardiogram (ECG), a 10-second recording of the heart’s electrical activity.