[The electrocardiogram in complete transposition of the great vessels. Study of 35 cases].

The electrocardiogram in complete transposition of the great vessels has been discussed by several authors (Campbell and Suzman, 1951; Astley and Parsons, 1952; Wood, 1956; Keith, Rowe, and Vlad, 1958; Noonan et al., 1960; Elliott et al., 1963a; Calleja, Hosier, and Grajo, 1965; and others). Most authors correlated the electrocardiogram with the underlying pathology of the ventricular septum and the presence or absence of pulmonary stenosis, while Elliott et al. (1963a) correlated their findings with the size of the associated defects at necropsy. Little attempt, however, has been made to correlate the electrocardiogram with the hemodynamics of the circulation and the pathology of the heart. This study aims to make this correlation and is confined to complete transposition of the great vessels with normal position of the atria and of the ventricles, as defined in the classification suggested by Shaher and Johnson (1963), and Shaher (1964a). Patients with associated single ventricle or with tricuspid atresia have been excluded.