Defibrillation: standard vs. double sequential in adult out-of-hospital cardiac arrest


Background:Refractory ventricular fibrillation (RVF) in out-of-hospital cardiac arrest (OHCA) poses a significant challenge to paramedic teams and is further confounded by an absence of specific guidance on the management of this patient category.Objective:To conduct a systematic literature review to determine whether double sequential defibrillation (DSD) improves patient outcomes in adult OHCA.Methods:Electronic searches of CINAHL, MEDLINE and AMED databases were carried out, using EBSCOhost (2017) and a subsequent filtering process.Results:Three case series and two cohort studies provided the highest category of evidence to evaluate. DSD is offered as a potentially feasible RVF treatment strategy throughout. However, results are consistently limited by varying protocol and small study groups and DSD success is likely multifactorial.Conclusion:The current systematic literature review indicated that no confirmed association existed between DSD and improved OHCA outcomes. More robust research is required to eliminate profound limitations and consider contributing factors to DSD.

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