Median frequencies of prolonged ventricular fibrillation treated by V-A ECMO correspond to a return of spontaneous circulation rate

1 Second Department of Medicine Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University, Prague Czech Republic 2 Institute of Physiology, First Faculty of Medicine, Charles University, Prague Czech Republic 3 Gerstner Laboratory, Department of Cybernetics, Electrotechnical Faculty, Czech Technical University, Prague Czech Republic 4 Second Department of Surgery Department of Cardiovascular Surgery, First Faculty of Medicine, Charles University, Prague Czech Republic ORIGINAL ARTICLE DOI: 10.5301/ijao.5000291