The present study describes the impact on the Department of Anesthesiology, Resuscitation and Critical Care of treating the victims of the 11 March terrorist attack, both on the day of the attack and on subsequent days. Of the 182 victims who were hospitalized, 61 had a poor prognosis, 24 had a very poor prognosis, 2 were already dead, and a further 2 died that day. Twenty-seven patients were admitted to the critical care unit. Patients with suspected severe injuries were sent to postanesthesia recovery units, where a second level of triage was performed, allowing patients to be appropriately transferred according to their severity and the necessary interventions to be performed.