Sepsis is a state of multiple organ dysfunction caused by a generalized immune-inflammatory response of the body to an infectious agent, with pronounced heterogeneity and interchangeability of clinical and laboratory manifestations. Violation of autoregulation and multiple organ dysfunctions in case of not timely started and / or ineffective therapy lead to the development of multiple organ failure and thanatogenesis in 40-90% of cases. At the moment, there is no standardized approach to the treatment of the entire pool of sepsis patients. Pharmacological effects on receptors for interleukins and endotoxin, antibiotic therapy and immunoprotection do not allow taking the process under complete control. The pathogenesis and clinical diversity of manifestations dictates the need for a personalized approach based on identifying a group of patients with homogeneous characteristics and the course of the process, where one or another technique would have the greatest benefit. The choice of tactics for extracorporeal therapy should be based on early support of organ function and consistent elimination of high concentrations of trigger compounds (endotoxin, other metabolic products of microorganisms and products of cytolysis of a macroorganism), as well as aimed at minimizing the loss of proteins and immune complexes. The aim of this clinical study was to assess the efficacy and safety of the selective adsorption of endotoxin in patients with severe multiple organ dysfunction after complicated cardiac surgery.