Additional Examinations Electrocardiogram: sinus rhythm, without cavitary overloads, complete right bundle branch block and 1st degree atrioventricular block. PR: 0.22, QRS: 0.109 with complexes rSr´ in V1 and RS in V6; AP = + 0º, AQRS = + 220º, AT = + 66º. Chest X-ray: normal cardiac area (cardiothoracic index = 0.50) and linear vascular image with increased density bordering the ventricular arch (). […]