Accuracy of Bedside Methods for Preliminary Nasoenteric Tube Tip Localization in Intensive Care: A Prospective...

Area of Science:

• Critical Care Medicine
• Gastroenterology
• Medical Devices

Background:

• Postpyloric nasoenteric feeding is crucial for critically ill patients but tip confirmation is challenging.
• Radiography is the gold standard but impractical for frequent use in resource-limited ICUs.
• Developing reliable bedside methods for nasoenteric tube tip localization is essential.

Purpose of the Study:

• To evaluate the accuracy of five bedside methods for nasoenteric tube tip localization against radiography.
• To assess the safety of these bedside methods.
• To determine the optimal pH difference cut-off for aspirate.

Main Methods:

• Prospective, blinded diagnostic accuracy study in a tertiary ICU.
• Five bedside tests: pH difference, pH testing, auscultation, palpation, and ultrasonography.
• Radiography as the reference standard; AUC calculated for each test.

Main Results:

• Palpation (AUC 0.902), ultrasound (AUC 0.863), and pH difference (AUC 0.808) were superior to auscultation and pH testing.
• Optimal pH difference cut-off of ≥1 yielded 100% sensitivity.
• No adverse events were reported within 24 hours.

Conclusions:

• Palpation, ultrasound, and pH difference are accurate bedside methods for nasoenteric tube placement.
• These methods can guide nurse-led tube placement, reducing reliance on interim radiographs.
• Integration into protocols can improve safety and efficiency in resource-limited ICUs.