Differences of verbal feedback between human feedback and an audio-visual feedback device during two-rescuer CPR

Christoph Schriefl1,∗, Tanja Muschnig1, Christoph Dibiasi1, Erich Pawelka1, Katharina Skvarc1, Matthias Muller1, Franz Josef Nierscher2, Robert Greif3, Henrik Fischer4 1 Medical University Vienna, Vienna, Austria 2 Department of Anaesthesia, General Intensive Care and Pain Medicine, Division of Cardiothoracic and Vascular Anaesthesia and Intensive Care, Medical University Vienna, Vienna, Austria 3 Department of Anaesthesiology and Pain Medicine, University Hospital Bern and University of Bern, Bern, Switzerland 4 Federal Ministry of the Interior, Vienna, Austria