More robust research is required to eliminate profound limitations and consider contributing factors to DSD. The DOSE VF trial showed that double sequential external defibrillation and vector-change defibrillation led to greater survival to hospital discharge for patients with refractory ventricular fibrillation and out-of-hospital cardiac arrest. 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. Double (or dual) sequential defibrillation (DSD) has gained popularity as an alternative treatment option for patients who fail to respond to standard defibrillation attempts. Hands-on defibrillation: an analysis of current flow through rescuers in direct contact with patients during biphasic external defibrillation. DSD is offered as a potentially feasible RVF treatment strategy throughout. double sequential in adult out-of-hospital cardiac arrestīackground: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. Dual sequential external defibrillation (DSED) is the process of near simultaneous discharge of two defibrillators with differing pad placement to terminate refractory arrhythmias. Double external defibrillation (DED) is the application and administration of transthoracic electrical currents from two defibrillator devices to a single patient experiencing a single type of lethal dysrhythmia during cardiac arrest, known as refractory ventricular fibrillation (RVF).
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