[Sudden death and cardiac insufficiency].

The relationship between the incidence of ventricular arrhythmias and sudden death in chronic cardiac failure is, in fact, true as arrhythmias are mainly related to the severity of left ventricular dysfunction. If sudden death in subjects without cardiac failure is usually attributed to arrhythmia, in chronic cardiac failure it is often the result of sudden collapse, the mechanism of which is not well known. The distinction between sudden and non-sudden death therefore loses much of its value.