Artificial Respiration, Consciousness Disorders, Wearing Off Effect
Conditions
Keywords
Altered level of consciousness, Tracheal tube withdrawal, Respiration, Artificial Respiration, Physiology
Brief summary
The purpose of this study is to determine if a weaning strategy from artificial ventilation governs by respiratory behaviour status assessed by our method is safe enough.
Detailed description
Current guidelines for mechanical ventilation weaning do not apply for patients with altered level of consciousness. One major limitation is a failure of clinical assessment of the respiratory behaviour status of these patients that are not able to interact appropriately with the examiner. We propose a non-invasive method for the respiratory behaviour assessment of a patient under artificial ventilation that do not requires his participation. Our hypothesis is that, in case of normal respiratory behaviour status, it is possible to wean under security a patient despite his abnormal level of consciousness.We previously demonstrate that patients successfully wean by the clinical team also disclose a normal respiratory behaviour status while patients with weaning failure had abnormal respiratory behaviour. In the present study, we wonder to evaluate that a weaning strategy governs by respiratory behaviour status assessed by our method is safe. For this purpose, in this study, tracheal tube withdrawal is triggered by a recognition of a normal respiratory behaviour status assessed daily in patients under mechanical ventilation with an altered level of consciousness and a good tolerance to T tube challenge.
Interventions
mechanical ventilation
Sponsors
Study design
Eligibility
Inclusion criteria
* Altered level of consciousness (-1 \< RASS \> +1) * Mechanical ventilation ( \> 72 hours) * Withdrawal of sedative drugs (\> 48 hours) * T tube challenge tolerance * Signed approval for the study by close relative or legal representative
Exclusion criteria
* Respiratory disease prior to the actual artificial ventilation requirement. * Impairment of upper airway function prior to the actual artificial ventilation requirement. * Pregnancy * Minor
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Rate of successful mechanical ventilation weaning at 72 hours | 72 hours |
Secondary
| Measure | Time frame |
|---|---|
| Post tracheal tube withdrawal pneumonia at 72 hours | 72 hours |
| Rate of auto-extubation during patient's participation to the protocol | 10 days |
Countries
France