[Criteria for adequate respiratory support during transfer of patients to spontaneous respiration].

Time course of circulation, oxygen transport and consumption parameters were studied in patients with parenchymatous pulmonary diseases during their transfer to spontaneous respiration under conditions of pressure support ventilation after long forced ventilation of the lungs. The oxygen cost of respiration can serve as a reliable criterion of respiratory support adequacy when the use of a respirator is discontinued. With oxygen cost of respiration at least 14%, a decrease of respiratory support is hardly possible without decompensation of the respiration system and circulation, which dictates monitoring of this parameter during transfer of patients to spontaneous respiration.