Prospective study demonstrates high accuracy of transnasal re-endoscopy for feeding tube placement in intensive care patients, suggesting a reliable radiation-free alternative to X-rays.
OBJECTIVES: In critically ill patients, correct placement of enteral feeding tubes is usually controlled by X-ray. A bedside method without radiation exposure would be preferable. This study aimed to demonstrate the feasibility and value of endoscopic position control for enteral feeding tubes by transnasal re-endoscopy. METHODS: A total of 120 consecutive examinations in critically ill patients were analyzed. Immediately after transnasal endoscopic placement of a feeding tube, the correct position was determined by re-endoscopy. In cases of incorrect position, replacement was performed instantly until the correct position was achieved. Abdominal X-ray with contrast was performed thereafter and served as the gold standard. RESULTS: In 95 patients (79%), endoscopic control showed correct position. In 25 patients, position was incorrect and endoscopic placement was repeated (one attempt in 22 patients, two attempts in 3 patients). Radiological control showed correct position in 118 patients (98%). In two cases, the feeding tube was displaced in the meantime. The sensitivity and positive predictive value of endoscopic position control was 100% (95% confidence interval, CI; 97-100%) and 98% (95% CI; 94-99%), respectively. The cost savings per case ranged from $281 to $302, depending on different cost assumptions. CONCLUSIONS: Endoscopic position control of enteral feeding tubes by re-endoscopy is feasible, very accurate, leads to a high rate of successful feeding tube placements, and has the potential of substantial cost-savings.
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Wiegand et al. (2009) studied this question.
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