Surgery for Pectus Excavatum is associated with intense postoperative pain and the need for multiple analgesic therapies that include regional blocks such as the erector spinae.The evidence supports this block due to its effectiveness and the possibility of locating a catheter to continuously administer interfacial local anesthetic.To date, there are few reports on its use as an analgesic strategy for this surgery and based on this, this is the first reported case of continuous and effective analgesia using this block at the bilateral thoracic level for the placement of a NUSS bar as the only analgesic method for postoperative analgesic in an adult patient.