Proposed diagnostic criteria for short QT syndrome are badly founded.

account for the increase in both VF and acute HF risk in patients presenting with STE in lead V4R. The interventricular septum is nown to play an important role in arrhythmias after myocardial nfarction (1). Morita et al. (2) demonstrated that acute ischemia f the interventricular septum in canine cardiac wedge preparations roduced asymmetric suppression of conduction velocity in the eptum, and they suggested that such changes could contribute to he initiation of arrhythmia in patients with septal infarction. ore recently, Sicouri et al. (3) demonstrated that dispersion of epolarization across the interventricular septum in canine wedge reparations is twice that of the left ventricular free wall, predisosing to development of Torsades de Pointes arrhythmias. The elatively low incidence of the combined end point (primary VF, cute HF, or both) calls for caution in the interpretation of the esults, especially with regard to the multivariate analysis. Should ur findings be confirmed in a larger cohort, we would recommend hat right precordial leads be a routine part of the initial electroardiographic study in all patients with anterior STEMI.