Gustavo A Ospina-Tascón1, Luis Eduardo Calderón Tapia2. 1. Department of Intensive Care, Fundación Valle del Lili University Hospital - Universidad Icesi. Cali, Colombia. Electronic address: gusospin@gmail.com. 2. Department of Intensive Care, Fundación Valle del Lili University Hospital - Universidad Icesi. Cali, Colombia.