@ornellao - This must have been awful for your sister and for your family to watch. I can't imagine how you felt when everything seemed fine and then a slide backward. I understand the need for paralyzing before intubation. "Expert and definitive airway management are fundamental to the practice of emergency medicine. In critically ill patients, rapid sedation and paralysis, also known as rapid-sequence intubation, is used to facilitate endotracheal intubation in order to minimize aspiration, airway trauma, and other complications of airway management." https://www.ncbi.nlm.nih.gov/pubmed/10102312
Is she still unconscious? If she's conscious then I would ask her what she wants next. If this were my sister I would definitely want a second opinion. As Colleen suggested just click on this link: http://mayocl.in/1mtmR63
How are you all holding up? Have the doctors begun treating her for a fungus infection?