Acute Respiratory Failure, Shock
Conditions
Keywords
vasoactive drug, mechanical ventilation, early enteral nutrition, intensive care unit, early parenteral nutrition, critical care medicine, nosocomial infection, mortality, shock
Brief summary
To evaluate the impact of enteral nutrition on microaspiration of gastric content and pharyngeal secretions
Detailed description
A common obstacle to enteral nutrition is gastrointestinal intolerance, with regurgitations potentially responsible for gastric-content aspiration. Several studies involving technetium 99m (99mTc) labeling of gastric contents have established that gastric-fluid microaspiration is common in critically ill patients receiving both endotracheal ventilation and enteral nutrition. However, to our knowledge, no studies have specifically addressed the role for enteral nutrition in the occurrence of microaspiration. The objective of this ancillary study is to compare the frequency of gastric-content microaspiration in patients given enteral versus parenteral nutrition during the NUTRIREA2 trial. The new knowledge of risk factors for microaspiration provided by this study may help to improve strategies for preventing microaspiration and ventilator-associated pneumonia (VAP).
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* Invasive mechanical ventilation expected to be required more than 48 hours * Nutrition started within 24 hours after initiation of endotracheal mechanical ventilation * Treatment with vasoactive drug administered via a central venous catheter * Age over 18 years * Signed information
Exclusion criteria
* Abdominal surgery within 1 month before inclusion * History of esophageal, gastric, duodenal or pancreatic surgery * Bleeding from the esophagus, stomach or bowel
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| proportion of patients with abundant microaspiration (defined as a pepsin level >200 ng/mL in at least 30% of tracheal aspirates) | 48Hours following randomisation | Every tracheal aspirate will be collected during 48hours following randomisation |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Salivary amylase levels in tracheal aspirates. | 48Hours following randomisation | Every tracheal aspirate will be collected during 48hours following randomisation. Salivary amylase will be analysed. |
Countries
France