Preliminary in-hospital experience with a fully automatic external cardioverter-defibrillator

André Moreira Bento, Luiz Francisco Cardoso, Sérgio Timerman, Miguel Antonio Moretti, Eduardo Dante Bariani Peres, Edison Ferreira De Paiva, José Antonio Franchini Ramires, Karl B. Kern

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Background: Ventricular fibrillation (VF) and ventricular tachycardia (VT) are frequently present as initial rhythms during in-hospital cardiac arrest. Although ample evidence exists to support the need for rapid defibrillation, the response to in-hospital cardiac arrest remains without major advances in recent years. The delay between the arrhythmic event and intervention is still a challenge for clinical practice. Objective: To analyze the performance and safety of in-hospital use of a programmable, fully automatic external cardioverter-defibrillator (AECD). Methods: We conducted a prospective study at the Emergency Department of a university hospital. A total of 55 patients considered to be at risk of sustained VT/VF were included. Patients underwent monitoring of their cardiac rhythm by the AECD. Upon detection of a ventricular tachyarrhythmia, the AECD was programmed to automatically deliver shock therapy. Results: We recorded 19 episodes of VT/VF in 3 patients. The median time between the beginning of the arrhythmia and the first defibrillation was 33.4 s (21-65 s). One episode of spontaneous reversion of VT was documented 20 s after its origin and shock therapy was aborted. The defibrillation success was 94.4% (17/18) for the first shock and 100% (1/1) for the second shock. No case of inappropriate shock discharge was registered during the study period. Conclusion: The AECD has the feasibility to combine long-term monitoring with automatic defibrillation safely and effectively. It presents the possibility of providing rapid identification of, and response to, in-hospital ventricular tachyarrhythmias.

Original languageEnglish (US)
Pages (from-to)11-16
Number of pages6
Issue number1
StatePublished - Oct 2004


  • Automated external defibrillator
  • Cardiac arrest
  • Defibrillation
  • Desfibrilhador automático externo
  • Desfibrilhação
  • Fibrilhação ventricular
  • Paragem cardíaca
  • Ventricular fibrillation
  • Ventricular tachycardia

ASJC Scopus subject areas

  • Emergency Medicine
  • Emergency
  • Cardiology and Cardiovascular Medicine


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