Abstract
Anesthesiologists sometimes encounter unexpected lethal arrhythmias during general anesthesia with no apparent causes such as hemodynamic changes or electrolyte abnormalities. Although the treatment of the ultimate lethal arrhythmia, such as cardiac arrest, remains the same, the management of these patients must sometimes be different so as to prevent the appearance of lethal arrhythmias, depending on the etiology of the arrhythmias. We present here three cases of lethal arrhythmias that we experienced : ventricular fibrillation (VF) by Brugada syndrome, R on T type premature ventricular contractions by secondary QT interval prolongation, and VF by coronary artery spasm, and review how to treat and prevent them.
