Summary of recommendations and key points of the consensus of Spanish scientific societies (SEPAR, SEMICYUC, SEMES; SECIP, SENEO, SEDAR, SENP) on the use of non-invasive ventilation and high-flow oxygen therapy with nasal cannulas in adult, pediatric, and neonatal patients with severe acute respiratory failure M. Luján; Ó. Peñuelas; C. Cinesi Gómez; A. García-Salido; J. Moreno Hernando; A. Romero Berrocal; I. Gutiérrez Ibarluzea; J.F. Masa Jiménez; A. Mas; J.M. Carratalá Perales; M. Gaboli; A. Concheiro Guisán; J. García Fernández; J. Escámez; J. Parrilla Parrilla; E. Farrero Muñoz; M. González; S.B. Heili-Frades; M.Á. Sánchez Quiroga; G. Rialp Cervera; G. Hernández; A. Sánchez Torres; R. Uña; C.F. Ortolà; M. Ferrer Monreal; C. Egea Santaolalla;

Factors associated to high-flow nasal cannula treatment failure in pediatric patients with respiratory failure in two pediatric intensive care units at high altitude P. Vásquez-Hoyos; A. Jiménez-Chaves; M. Tovar-Velásquez; R. Albor-Ortega; M. Palencia; D. Redondo-Pastrana; P. Díaz; J.D. Roa-Giraldo;

Predictive performance of ROX index and its variations for NIV failure Lada Lijovi¿; Tomislav Rado¿aj; Nata¿a Kova¿; Marinko Vu¿i¿; Paul Elbers;