The triad secondary R waves, RS-T segment elevation and T waves inversion in right precordial leads: a normal electrocardiographic variant.

A bizarre electrocardiogram characterized, in right precordial leads, by the triad, high secondary R waves, marked RS-T segment elevation and deep T waves inversion, was observed in an otherwise normal individual. Its persistence for forteen years and its absence at lower levels than in routine right precordial leads demonstrate its nonpathological origin. The few similar cases reported in the literature are reviewed and theie mechanism is discussed.