The ventricular pre-excitation syndrome (Wolff-Parkinson-White syndrome) is defined as a premature activation of the entire ventricular myocardium by a super-ventricular impulse. The premature activation is made by accessory conduction pathways that produce a short circuit in the normal nodo-hisian pathway. The accessory pathways are made of atrial myocardial fibers that have a higher conduction velocity and a refractory period shorter than the nodo-hisian structures. The accessory bundle can

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... single or multiple; it refers to congenital structures that can be dormant and they are often activated under the action of different agents. We present the case of a male aged 34 who was the victim of an aggression being hit with fists and feet. In this case, the Wolff-Parkinson-White syndrome has appeared as a sudden atrial fibrillation and left ventricular failure that appeared immediately after a traumatism of the face and legs. In this case the patient suffered from severe symptoms due to the appearance of the Wolff-Parkinson-White and required immediate hospitalization, medical treatment and ablation of the Paladino-Kent bundle.