1. a) Vector and have presented 35 cases of heart disease Electrocardiographically s Congenital all of which have had surgical confirmation . They are: Septal , 20 cases ; Persistence Atrioventricular Canal , 6 cases ; Pulmonary stenosis , 5 cases and Tetralogy of Fallot, 4 cases. b ) the amendments to suffer Eccr are discussed. ys VCG regarding assessment and postoperative evolution . Two . a) The E.c.g. Communication ostium secundum atrial showed no significant findings out of right ventricular hypertrophy and pattern rsR ' in precordial V1. b ) the correlation of " crochetage " QRS was shown with its counterpart in the vectorcardiogram in cases of septal defect secundum . c ) electrocardiographic findings A QRS deflection to the left , first-degree block and RSR pattern in the precordial lead V1 in cases of persistent common atrioventricular canal are described. d ) the VCG s is descr...