[Sudden cardiac death during long-term ECG monitoring of a patient with aortic stenosis].

Sudden cardiac death was documented on a Holter-monitor ECG in a 71-year-old man with known, but unoperated, calcific aortic stenosis (peak transvalvar gradient of 90 mm Hg). The tracing showed the development of a, presumably stress-induced, sinus tachycardia with broad QRSs and rapid transition to ventricular fibrillation. This rarely documented example of cardiac death in a patient with aortic stenosis during long-term ECG monitoring is of special interest because the patient had neither an inverse therapy effect nor impaired left-ventricular function.