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An automated external defibrillator in the home did not reduce all-cause mortality in patients at risk of cardiac arrest

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G H Bardy

Dr G H Bardy, Seattle Institute for Cardiac Research, Seattle, WA, USA;


In stable patients at increased risk of sudden cardiac arrest, does having an automated external defibrillator (AED) in the home reduce all-cause mortality compared with training in usual emergency procedures?



randomised controlled trial (Home Automated External Defibrillator Trial [HAT]).




blinded (outcome adjudication committee).

Follow-up period:

median 37 months.


178 clinical sites in the USA, Canada, Australia, the UK, New Zealand, the Netherlands, and Germany.


7001 patients (median age 62 y, 83% men) who had had anterior-wall myocardial infarction, were not candidates for implantable cardioverter-defibrillator (ICD) therapy, and had a spouse or companion at home who was willing and able to perform the study interventions.


provision of an AED for home use (n = 3495) …

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  • Source of funding: National Heart, Lung, and Blood Institute; Philips Medical Systems; Laerdal Medical.