Significance of Tall Precordial T Waves: An Electrocardiographic Study in Indians

Tall precordial T waves can be found in a proportion of normal Indian subjects (2.5 percent). A significantly higher incidence (10.4 percent) was found in those with ischemic heart disease. In younger subjects the chance of tall T waves as a normal finding is high, whereas in persons 40 years of age or older it is more likely a pathologic condition. Women had a strikingly lower incidence of such T waves, in that none of the normal female subjects exhibited a tall T wave. Determination of the QRS axis and ventricular gradient are suggested as means of differentiating pathologic tall T waves from tall T waves in normal subjects.