Wolff-Parkinson-White-type ventricular preexcitation mimicking left ventricular hypertrophy and an inferoposterior myocardial infarct.

T he electrocardiogram (Figure) meets at least two commonly used criteria for left ventricular enlargement: the R wave in V5 or V6 > 2.6 mV, i.e., >26 mm with the usual standardization of 1.0 mV = 10 mm (here RV5 is 35 mm); and SV1 + RV5 or RV6 > 3.5 mV, i.e., >35 mm (here SV1 + RV5 = 57 mm). Broad and deep Q waves in leads II, III, and aVF with broad and… CONTINUE READING