A patient had repetitive ventricular fibrillation preceded by alternating ST segment depression and elevation. The ECG changes were confined to the precordial leads only, reflecting subendocardial and transmural ischemia, respectively. It is speculated that the patient exhibited consecutive episodes of subtotal and total coronary occlusion, both episodes being critical enough to induce lethal a...

THE electrocardiogram of presumably normal infants and children has been the subject of extensive investigation.''2 On the other hand, an extensive review of the literature failed to reveal reports of the electrocardiograms of infants and children suffering from pulmonary disease.'3' 14 Ziegler12 in 1951 recorded the electrocardiograms of normal inifants and children ranging in age from birth t...

Brugada syndrome is a genetically determined familial disease with autosomal dominant transmission and variable penetrance, conferring a predisposition to sudden cardiac death due to ventricular arrhythmias. The syndrome is characterized by a typical electrocardiographic pattern in the right precordial leads. This article will focus on the new electrocardiographic features recently agreed on by...

In 1945, Rosenbaum and his associates proposed that ventricular pre-excitation should be classified into two types (A and B) according to the configuration of the QRS complexes in the right precordial leads of the scalar electrocardiogram. In type A pre-excitation the delta wave is positive and the S waves are small or absent; in type B the delta wave is negative and the S waves are large. Thou...