Impact of the newly implemented human feedback in contrast to Q-CPR® feedback and standard BLS on the “Effective Compression Ratio” outcome

Tanja Muschnig1,∗, Christoph Schriefl1, Matthias Muller1, Christoph Dibiasi1, Erich Pawelka1, Dominik Stumpf2, Franz Josef Nierscher3, Robert Greif4, Henrik Fischer5 1 Medical University Vienna, Vienna, Austria 2 Hospital of the Sisters of Charity Linz, Linz, Austria 3 Department of Anaesthesia, General Intensive Care and Pain Medicine, Division of Cardiothoracic and Vascular Anaesthesia and Intensive Care, Medical University Vienna, Vienna, Austria 4 Department of Anaesthesiology and Pain Medicine, University Hospital Bern and University of Bern, Bern, Switzerland 5 Federal Ministry of the Interior, Vienna, Austria