A cirurgia de controlo de danos em contexto de trauma: A fisiopatologia como suporte para a sua realização

Hypothermia, coagulopathy and metabolic acidosis are at serious risk to develop in severe trauma patients. These metabolic derange- ments known as lethal triad contribute to an increase in mortality rate in these patients. Damage control surgery emerged as an alter- native, with a positive impact on survival, to definitive and prolonged procedures which deplete the patient s physiological reserves leading inexorably to a vicious cycle and death. The timing of damage control surgery is crucial, because after the establishment of the lethal triad the outcome of the procedure is severely worsened. Nowadays, the decision is frequently delayed to last resort, when phy- siological derangements are already present. Therefore formal guidelines for its early application are necessary in order to avoid delays and avoidable deaths. Selection criteria for damage control surgery are highly controversial, varying substantially in the literature. The purpose of this article is therefore to revise the selection criteria for damage control surgery proposed in the literature, justified on the underlying pathophysiology of trauma. Despite all controversy, an improvement in patient outcome will emerge of the clarification of criteria, as well as of appropriate timing, to perform damage control surgery. Keywords: "blood coagulation disorders"[MeSH Terms]; "acidosis"[MeSH Terms]; "hypothermia"[MeSH Terms]; "intra-abdominal hypertension"[MeSH Terms]; "wounds and injuries"[MeSH Terms]