Case report on right branch block, acute pulmonary oedema and enteritis caused by electric shock in a boy. The invasive hemodynamic study showed primary pulmonary hypertension, cardiogenic shock, and acute respiratory failure. The outcome was good, with total and progressive recovery of all lesions. The literature review revealed the rarity of pulmonary oedema and enteritis after an electric shock. The invasive haemodynamic data suggest physiopathological explanations for findings in the case and indicate therapeutic measures for similar situations.