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An audit on the use of exclusive liquid diets in Crohn's disease at the Royal London Hospital

Published online by Cambridge University Press:  08 April 2011

R. G. White
R. G. White
Affiliation:
Principal Dietitian (Nutritional Support and IBD), Barts and The London NHS Trust, London E1 1BB, UK
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Abstract

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Information
Proceedings of the Nutrition Society , Volume 69 , Issue OCE7: Malnutrition Matters, Joint BAPEN and Nutrition Society Meeting, 2nd and 3rd November 2010, Harrogate , 2010 , E539
Copyright
Copyright © The Author 2011

The efficacy of exclusive liquid diets (ELD) has been demonstrated extensively in clinical trials to induce remission in active Crohn's disease(Reference King, Woolner and Hunter1, Reference Goh and O'Morian2).

A prospective audit was carried out on all adult patients referred for an ELD at The Royal London Hospital between 1 September 2009 and 31 March 2010. Primary outcomes were to (1) determine the effectiveness of ELD measured using Harvey Bradshaw Index (HBI), (2) determine the effect of ELD on nutritional status measured by changes in weight and BMI and (3) determine the level of compliance to the ELD measured by prescribed v. consumed ELD and actual end date of ELD v. target end date.

Sixteen referrals were received during the audit period. Eleven out of 16 (69%) attempted the liquid diet, 5 declined. One of the 11 patients was lost to follow-up and is therefore excluded. There were difficulties obtaining full data sets for all patients.

There was a trend towards improved HBI and improved nutritional status when following an ELD and this trend was stronger when compliance was high. There was only a trend of improved nutritional status when compliance was high but this was not significant.

Table 1. Clinical changes following an ELD

* Data unobtainable in 3 patients. **Data unobtainable in 4 patients. ***Data unobtainable in 5 patients.

Five patients demonstrated high compliance determined by following the ELD for the entire recommended period and consuming an average of 96.8% of their supplement prescription over this period. In this group, there was a reduction in mean HBI of 4.2, which was statistically significant (P=0.028). Five patients stopped the ELD before their target date and sited ongoing symptoms and inability to tolerate prescribed volume as the main reasons. This group consumed only 35% of their supplement prescription and there was no change in their HBI.

This audit supports the evidence that ELD can be an effective treatment for active Crohn's disease, but only if patients are compliant. Dietitian's play a key role in optimising compliance and are therefore an important part of the multidisciplinary team. More focus needs to be placed on achieving high compliance and more effective strategies developed by dietitians working in this area.

References

1.King, T, Woolner, J & Hunter, J (1997) Aliment Pharmacol Ther 11, 17–31.CrossRefGoogle Scholar
2.Goh, J & O'Morian, C (2003) Aliment Pharmacol Ther 17, 307–320.CrossRefGoogle Scholar
Figure 0

Table 1. Clinical changes following an ELD