Can your fitness tracker save your life in the ER?

Emergency physicians used a patient’s personal activity tracker and smartphone to identify the time his heart arrhythmia started, which allowed them to treat his new-onset atrial fibrillation with electrical cardioversion and discharge him home. The first case report using information in an activity tracker/smartphone system to assist in medical decision-making was reported online Friday in Annals of Emergency Medicine (‘Interrogation of Patient Activity Tracker to Assist Arrhythmia Management’).
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