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8 sie 2023 · VF is a WCT caused by irregular electrical activity and characterized by a ventricular rate of usually greater than 300 with discrete QRS complexes on the electrocardiogram (ECG). This activity reviews the causes, pathophysiology, and presentation of VF and highlights the role of the interprofessional team in its management. Objectives:
8 sie 2023 · VF is a WCT caused by irregular electrical activity and characterized by a ventricular rate of usually greater than 300 with discrete QRS complexes on the electrocardiogram (ECG). QRS morphology in VF varies in shape, amplitude, and duration with a prominent irregular rhythm.
The mechanisms of ventricular fibrillation (VF) have been in debate for more than a century 1, 2. Experimental and computer simulation studies in the last few decades have demonstrated that foci, reentry, or a mixture of the two are all possible electrical activities for VF, depending on the disease or experimental conditions 3.
Ventricular fibrillation (VF) is a common, life-threatening arrhythmia responsible for significant morbidity and mortality. Due to challenges in safely mapping VF, a comprehensive understanding of its mechanisms remains elusive.
Ventricular fibrillation (VF) was likely recognized as early as 3500 BCE when the Ebers Papyrus 2 described key features of fibrillation as follows: “If the heart trembles, has little power and sinks, the disease is advancing and death is near.”.
The mechanisms of ventricular fibrillation (VF) have been in debate for more than a century 1, 2. Experimental and computer simulation studies in the last few decades have demonstrated that foci, reentry, or a mixture of the two are all possible electrical activities for VF, depending on the disease or experimental conditions 3 .
Ventricular fibrillation is the most common mechanism of sudden unexpected cardiac death in persons with asymptomatic or symptomatic coronary artery disease. The electrophysiologic mechanisms reviewed in this article include: automaticity of pacemaker fibers, transformation of nonpacemaker into pace ….
