Thoracotomy is associated with intense pain. in the pediatric population, the pain affects the ventilatory mechanics, which is also strongly influenced by the characteristics of the respiratory tract and chest according to the age. therefore, regional techniques are strongly recommended. in 2016, ESP is described for the first time, which generates extensive sensory block in the chest wall, without approaching the pleura and the neuroaxial space from the technical point of view. At present, there is increasing experience in different surgical settings, but it is still scarce in pediatric patients. We present the successful application of the technique in 2 pediatric cases of thoracic surgery and various outcomes are described.