advances for treating in-hospital cardiac arrest: safety and effectiveness of a new automatic external cardioverter-defibrillator
Antoni Martínez-Rubio, MD, FESC, FACC*,*,
Nabil Kanaan, PhD ,
Martin Borggrefe, MD, FESC ,
Michael Block, MD, FESC ,
Markku Mäkijärvi, MD, FESC||,
Francesco Fedele, MD¶,
Carlo Pappone, MD#,
Wilhelm Haverkamp, MD**,
José Luis Merino, MD, FESC ,
Gonzalo Barón Esquivias, MD ,
Juan Cinca, MD, FESC* European Powerheart Investigators
* University Hospital de la Sta. Creu i St. Pau, Barcelona, Spain
Cardiac Science Inc., Irvine, California, USA
University Hospital of Mannheim, Mannheim, Germany
Stiftsklinik Augustinum, Muenchen, Germany
|| Helsinki University Central Hospital, Helsinki, Finland
¶ University Hospital of Rome, Rome, Italy
# Hospital San Raffaele, Milan, Italy
** University Hospital of Muenster, Muenster, Germany
 University Hospital La Paz, Madrid, Spain
 University Hospital Virgén del Rocio, Seville, Spain

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Figure 1 (A) T-wave oversensing may be observed during ventricular pacing as indicated by the markers. (B and C) Recordings of the AECD response to two episodes of spontaneous VF in two different patients. The first circle indicates the beginning of charge (200 J) of the device; the second circle indicates the full charge of the automatic external cardioverter defibrillator, which was in advisory mode.
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