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Updated: Feb 28, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
Refractory Ventricular Fibrillation in the Context of ST-Elevation Myocardial Infarction (STEMI): A Case Report of
Chuang Lin Wang Kong1, Jose Gerardo Lopez Saenz2, Daniel Casares Fallas3
1Medicine and Surgery, University of Costa Rica, San Jose, CRI.
Abstract:
Refractory ventricular fibrillation (RVF) is a life-threatening arrhythmia that remains a challenge despite adherence to advanced resuscitation protocols. We present the case of a previously healthy 42-year-old man who experienced in-hospital cardiac arrest due to RVF following an acute inferolateral myocardial infarction. After multiple unsuccessful conventional defibrillation attempts, double sequential external defibrillation (DSED) with lateral decubitus position was employed as a salvage maneuver, resulting in return of spontaneous circulation (ROSC). The patient subsequently underwent successful thrombolysis and coronary revascularization with complete neurological and cardiac recovery. This case exemplifies the potential utility of DSED in treating RVF and emphasizes the importance of timely recognition, intervention, and post-resuscitation care in improving outcomes.
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