• A Wutzler, C Kloppe, A K Bilgard, A Mügge, and C Hanefeld.
• Heart and Vascular Center, Ruhr University Bochum, St. Josef Hospital, Bleichstr. 15, 44787, Bochum, Germany.
• Med Klin Intensivmed Notfmed. 2019 Mar 1; 114 (2): 154-158.

BackgroundAcute treatment of in-hospital cardiac arrest (IHCA) is challenging and overall survival rates are low. However, data on the use of public-access automated external defibrillators (AEDs) for IHCA remain controversial. The aim of our study was to evaluate characteristics of patients experiencing IHCA and feasibility of public-access AED use for resuscitation in a university hospital.MethodsIHCA events outside the intensive care unit were analysed over a period of 21 months. Patients' characteristics, AED performance, return of spontaneous circulation (ROSC) and 24 h survival were evaluated. Outcomes following adequate and inadequate AED use were compared.ResultsDuring the study period, 59 IHCAs occurred. AED was used in 28 (47.5%) of the cases. However, AED was adequately used in only 42.8% of total AED cases. AED use was not associated with an increased survival rate (12.9 vs. 10.7%, p = 0.8) compared to non-AED use. However, adequate AED use was associated with a higher survival rate (25 vs. 0%, p = 0.034) compared to inadequate AED use. Time from emergency call to application of AED >3 min was the most important factor of inadequate AED use. Adequate AED use was more often observed between 7:30 and 13:30 and in the internal medicine department.ConclusionAEDs were applied in less than 50% of the IHCA events. Furthermore, AED use was inadequate in the majority of the cases. Since adequate AED use is associated with improved survival, AEDs should be available in hospital areas with patients at high risk of shockable rhythm.

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