RUDN Journal of MedicineRUDN Journal of Medicine2313-02452313-0261Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)3179Research ArticleRelationship between pepsin activity in the tracheobronchial aspirate and duration of respiratory therapy in newbornsBryksinaE YVolkova_Zhenya@list.ruVoronezh regional children's clinical hospital № 115012015110711207092016Copyright © 2015,2015The 276 children on mechanical ventilation in the neonatal period the study was conducted tracheobronchial aspirate (TBA) with the release of pepsin and the determination of its extinction activity value. It was found that the increase of pepsin activity was accompanied by increased duration of mechanical ventilation and subsequent oxygen therapy.artificial pulmonary ventilationmicroaspirationtracheobronchial aspirateextinctionискусственная вентиляция легкихмикроаспирациятрахеобронхиальный аспиратэкстинкция