The first part renders very synthetically a few of the principal pathogenetical mechanisms implicated in PA, as well as general data about MODS, and then tackles therapeutical principles of great organic disfunction, the therapy of septic states and nutrition in PA. Hemodynamics dysfunction--the therapeutical objectives are correlated with the principal mechanisms implicated in cardio-vascular disfunction (the grown level of some myocardial depressive factors, the shortcoming of peripheral vascular resistance, a.s.o.). The therapeutical principles covets the volemic restoration, inotropic therapy, the correction of hydro-ionic and acido-basic disorders, the vasomotor therapy, the CID's correction, the myocardium protection against the free radicals of oxygen. The therapy is recommended to be individualized depending on the clinical data and the monitoring of some parameters (T.A, P.V.C., intrapulmonary pressure, EKG, hematocrit value, a.s.o.). Pulmonary disfunction--includes the therapy of some clinical forms of pulmonary complications, the restrictive syndrome, infections, the pulmonary shunt, the atelectasis and insists on ARDS which is a complication with vital implications. The therapy of curdling disorders--recommends blood, derivatives, antiprotease, the substitution of the consumed curdling factors, as well as the removal of the pathogenic factors which disturb the coagulation-coagulolysis equilibrium. Purge proceedings--covet the elimination from the organism of the toxic agents which generate cell-organic lesions. That's why it is moot the elimination of the pancreatic toxins before reaching the circulation (the thoracic tube draining and peritoneal lavage) as well as extrarenal purge proceedings (hemodialysis, hemofiltration and hemodiafiltration) with their benefits and limits. The sepsis and the immunotherapy--are tackled based on recent data from literature which besides antibiotherapy insists on the neutralization of various toxins and mediators by means of monoclonal and polyclonal antibodies, anti TFL antibodies, IL, a.s.o. Nutrition--is different presented, parenterally and enterally, each of them with their benefits and limits and with the recommendation to be used by means of the clinical form. There are mentioned some other additional treatments (pain removing, antagonisms of H2 receptors, inflammation and cytotoxicity inhibition, gastric decompression, a.s.o.).