Weaning failure is associated with prolonged duration of mechanical ventilation that itself can worsen patient's prognosis. Therefore, identification of the causes and mechanisms leading to weaning failure is important in daily practice. While diaphragm dysfunction and pulmonary edema are two main causes of weaning failure, there are currently no data that quantify their respective contribution neither their potential co-existence. During weaning from mechanical ventilation, heart and lung interaction plays a major role. As a key factor, diaphragm function is therefore certainly involved in the occurrence of weaning-induced pulmonary edema. However, both phenomenons diaphragm dysfunction and weaning induced pulmonary edema have not been simultaneously investigated so far. This current project aims at exploring the relationship between diaphragm dysfunction and pulmonary in patients experiencing weaning failure. The objectives are 1) to quantify the respective contribution and co-existence of diaphragm dysfunction and weaning induced pulmonary edema and 2) to investigate the role of diaphragm function in the occurrence of weaning induced pulmonary edema.
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Failure at the spontaneous breathing trial
Timeframe: During or at the end of the spontaneous breathing trial