Mimics of coronary heart disease.

Numerous disorders can mimic chronic coronary disease either clinically or electrocardiographically. Particularly noteworthy are Wolff-Parkinson-White syndrome, asymmetric septal hypertrophy, floppy mitral valve syndrome, angina pectoris with normal coronary arteries, hyperventilation syndrome, neurogenic T wave abnormalities, vasoregulatory abnormality, cervicoprecordial angina, hyperkalemia or hypokalemia, left ventricular hypertrophy, and left anterior fascicular block.