The objective of the BOCUSE study is to demonstrate a relationship between an early ultrasound measurement of the gastric antral area and the subsequent occurrence of poor gastric tolerance.
Age ≥ 18 years
Predicted mechanical ventilation ≥ 48 hours
Initiation of enteral nutrition via nasogastric or orogastric tube for ≥ 48 hours
Free and informed consent obtained from the patient's relative or legal representative, or inclusion in an emergency situation
History of major gastric surgery (bypass, total gastrectomy, biliopancreatic diversion)
Enteral nutrition via nasogastric or orogastric tube > 96 hours
Initiation of enteral nutrition before intubation
Feeding via gastrostomy, jejunostomy, or jejunal tube