Results of EPs showed 22 cases of manifest accessory pathway (AP) (44%): 7 (31.81%) right side AP, 15 (68.19%). left side AP with 93.33% at the. left free wall; 28 cases of concealed accessory pathway (56%): 2 (7.14%) right side AP, 26 (92.86%). left side AP with 92.30% at the. left free wall.