Pilot Study Evaluating the Success (= Safe Decannulation) of a Standardized Tracheotomy Weaning Procedure in Brain-injury's Patients

"Weaning process in 5 steps (0-4), by a multi-professional team (neurosurgeon, physiotherapist, nurse, caregiver…) Stability criteria are defined for each person, after validation pass the next step. Stability criteria degradation return to the previous step. Weaning process can take back after stability criteria renormalization.~Step 0: cuff deflate. Step 1: occlusion test. Steps 0 and 1 can assess the freedom and protect capacity airway. In failure process, we can propose a nasofibroscopy.~Step 2: Phonatory Valve. Respiratory rehabilitation/ swallowing, limiting breathing effort. The valve ought to stay 12 hours before going to the step 3.~Step 3: Plug. Finish the Respiratory rehabilitation/ swallowing. The plug ought to stay 24hours minimum before going to the step 4.~Step 4: Decannulation"