作者单位:Medical University of Havana, Havana, Cuba, CIMEQ ICU, Havana, Cuba[1]CIMEQ ICU, Havana, Cuba[2]Medical University of Havana, Havana, Cuba, Department of ICU, Medical-Surgical Research Center[3]Medical University of Havana, Havana, Cuba, Hermanos Ameijeiras Clinical-Surgical Teaching Hospital[4]