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Changing how we confirm ngt placement: impact on nutrition delivered
Intensive Care Medicine Experimental volume 3, Article number: A288 (2015)
Introduction
Confirming the position of Nasogastric tubes (NGT) in critical care is a controversial area. The National Patient Safety Agency (NPSA) guidance [1] advocates pH testing although use is limited in ICU due to continuous enteral feeding and proton pump inhibitor therapy. Chest X-ray is therefore commonly used with trainee doctors often being responsible for confirming tube position. Following three incidents of undetected NGT misplacement (outside of our ICU), our trust stipulated a change in practice so that only radiologists or ICU consultants were allowed to confirm placement. We were concerned that this could negatively influence tube confirmation times and enteral nutrition (EN) provision. Cumulative calorie deficits contribute to malnutrition [2]. Under-nutrition in critically ill patients is associated with increased mortality, infections and length of stay [3].
Objectives
To determine if new guidance for NGT confirmation would influence time off EN and calories delivered.
Methods
Quality improvement project over two different 4 week time frames, before and after the change in NGT confirmation policy in a general/trauma ICU
Results
Conclusions
All patients acquired a cumulative calorie deficit over the time they were studied (average of 11 days). The change in NGT confirmation practice had a detrimental effect on time off EN and amount of EN provided. The size of increase in calorie deficit between the two time periods is only partly attributable to the change in NGT confirmation. Other factors influenced EN delivery in our patients, between the two data points such as non-compliance with our fasting guidelines for surgery and airway procedures. We speculate that the change in NGT confirmation may have led to an excessively risk-averse approach in which the problems of cumulative calorie deficit were under-appreciated. The current NGT confirmation practice for ICUs in our organisation is being reviewed. It is proposed once again to permit ICU trainees who have successfully completed relevant competency training to confirm position of NGT on x-ray. We intend to repeat data collection once this change has been implemented.
Grant Acknowledgement
No external funding was sought for this project.
References
National Patient Safety Agency. 2011
Alberda C, et al: Intensive Care Medicine. 2009, 35 (10): 1728-37. 10.1007/s00134-009-1567-4.
Villet S, et al: Clinical Nutrition. 2005, 24 (4): 502-9. 10.1016/j.clnu.2005.03.006.
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Segaran, E., Hartle, A. & Leonard, R. Changing how we confirm ngt placement: impact on nutrition delivered. ICMx 3 (Suppl 1), A288 (2015). https://doi.org/10.1186/2197-425X-3-S1-A288
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DOI: https://doi.org/10.1186/2197-425X-3-S1-A288