21. Ventricular fibrillation and tachycardia can lead to sudden cardiac death if not treated immediately.22. The cause of death was ventricular fibrillation triggered by cardiomyopathy. 23. Pulseless ventricular tachycardia and ventricular fibrillation are treated with unsynchronized shocks referred to as defibrillation. 24. Sudden cardiac death is usually caused by the degeneration of ventricular tachycardia to ventricular fibrillation . 25. Until the 1950s, ventricular fibrillation of the heart could only be treated with drug therapy. 26. Three patients were documented to be in ventricular fibrillation . 27. As he looked at and felt the heart, he realized that ventricular fibrillation was present. 28. Defibrillation is the definitive treatment for the life-threatening cardiac arrhythmias, ventricular fibrillation and ventricular tachycardia. 29. Ventricular fibrillation kills about 225, 000 people each year, according to American Heart Association estimates.30. If untreated, arrhythmias may present as bradycardia, tachycardia, or progress to atrial / ventricular fibrillation .
