[Dyspnea and cortical brain activation measured by functional near-infrared spectroscopy during a mechanical ventilation weaning trial].

In intubated patients in intensive care, respiratory-related brain suffering is frequent and harmful. Its detection and quantification rely on the patient's self-reporting abilities. However, half of the patients in intensive care are unable to report their sensations. Observational scales are promising alternative tools to suspect respiratory suffering in these patients. However, they still partially depend on subjective evaluation. The aim of the study is to assess brain activity measured by functional near-infrared spectroscopy in intubated patients, whether dyspneic or not, during a spontaneous breathing trial.