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Clinical Intelligence

A practical approach for UK primary care on the management of cow’s milk allergy in infants

Joanne Walsh, Carina Venter, Trevor Brown, Neil Shah and Adam T Fox
British Journal of General Practice 2014; 64 (618): 48-49. DOI: https://doi.org/10.3399/bjgp14X676591
Joanne Walsh
Gurney Surgery, Norwich.
Roles: GP, Castle Partnership
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Carina Venter
Allergy Specialist Dietitian, The David Hide Asthma and Allergy Research Centre, Newport, Isle of Wight and School of Health Sciences and Social Work, University of Portsmouth, Portsmouth.
Roles: PG dip in Allergy
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Trevor Brown
The Children’s Allergy Service, The Ulster Hospital, Ulster, Northern Ireland.
Roles: Consultant Paediatrician
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Neil Shah
Department of Gastroenterology, Great Ormond Street Hospital for Children NHS Foundation Trust, University College London, London and KU Leuven, Translational Research Centre for Gastrointestinal Disease (TARGID), Leuven, Belgium.
Roles: Paediatric Gastroenterologist
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Adam T Fox
Allergy MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, King’s College, London. Department of Paediatric Allergy, Guy’s and St Thomas’ Hospitals NHS Foundation Trust, University College, London.
Roles: Dip, Consultant Paediatric Allergist
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The term ‘Cow’s Milk Allergy’ (CMA) is used in this guidance, although the term ‘Cow’s Milk Protein Allergy’ (CMPA) is also widely used in the literature.

INTRODUCTION

CMA is the commonest food allergy among children in the UK. Data from 2008 indicated 2.3% of 1–3 year-olds in the UK suffer from CMA.1 In 2011, National Institute for Health and Care Excellence (NICE) published Clinical Guideline (CG)116 on the Diagnosis and Assessment of Food Allergy in Children and Young People in Primary Care and Community Settings.2 It has become increasingly evident that for effective implementation, there needs to be further practical advice, which was outside of the scope of the current NICE guideline, on establishing the initial diagnosis and the further management of infants with CMA.

A health economic analysis published in 2010 concluded that CMA imposes a, ‘substantial burden on the NHS’.3 The ‘cost’ of this burden can be kept at a minimum by improving the care provided in the community.

As clinicians involved in the development of the NICE guideline, we have therefore aimed to provide a practical tool for the management of CMA in primary care.

The algorithm we have produced is intended as an adjunct to the published NICE guideline2 and is intended for local adaptation. Algorithms have been published previously 4 but not aimed at UK primary care. The algorithms and further supporting information have been published and are freely available online.5

MANAGEMENT ALGORITHM

Whenever cow’s milk allergy is considered, an ‘allergy-focused clinical history’ should be taken. This includes any family history of atopy.2 A positive family history makes the diagnosis of food allergy more likely but its absence does not exclude the diagnosis.

NICE CG116 lists signs and symptoms of food allergy, dividing them into symptoms affecting the skin, gastrointestinal tract, and respiratory system. It states diagnosis should be particularly considered in infants:

  • with symptoms in different organ systems; or

  • who fail to respond to usual treatments (for example, for eczema or gastrointestinal symptoms, such as reflux).2

Symptoms are divided into those suggestive of IgE antibody-mediated reactions (usually occurring within minutes of ingestion), and those developing delayed symptoms (usually developing 2–72 hours after ingestion), which may be non-IgE-mediated.2

From the history, it is important to:

  1. determine the severity of the symptoms;

  2. decide on the likely mechanism of the reaction.

These two factors determine:

  • which tests should be performed;

  • which hypoallergenic formula should be prescribed (see Box 1 for a list of hypoallergenic formulas); and

  • if onwards referral to secondary care will be required.

Box 1. Hypoallergenic formulas

The constituents vary between the different individual extensively hydrolysed formulas available and also between the different individual amino acid formulas available. This can sometimes influence both an infant’s clinical tolerance and even their perceived apparent palatability of that formula.
The hypoallergenic formulas currently most commonly used in the infant age group in the UK for term infants are:
Extensively hydrolysed formulas
Casein-based constituents
Nutramigen LIPIL 1Birth onwardsMead Johnson400g tin
Nutramigen LIPIL 2>6 months of ageMead Johnson400g tin
Similac AlimentumBirth onwardsAbbott Nutrition400g tin
Whey-based constituents
AlthéraBirth onwardsVitaflo450g tin
Milupa Aptamil Pepti 1Birth onwardsMilupa400g or 900g tin
Milupa Aptamil Pepti 2>6 months of ageMilupa400g or 900g tin
Amino acid-based formulas
Neocate LCPBirth onwardsNutricia SHS400g tin
Nutramigen AA LIPILBirth onwardsMead Johnson400g tin

The algorithm is based around these considerations.

The first algorithm considers the severity of symptoms on presentation.

The second algorithm outlines the management of those infants with likely mild to moderate non IgE-mediated food allergy. These infants can be managed in primary care. It divides the management into:

  • those exclusively breastfed; and

  • those consuming any formula feed.

It considers making the diagnosis and then how and when to look for development of tolerance.

Evidence-based recommendations on how long an infant/child should follow a cow’s milk-free diet (including the use of hypoallergenic formula) before considering if the child has outgrown their milk allergy are lacking. However, it is usual clinical practice that infants with mild to moderate non-IgE-mediated CMA remain on a cow’s milk protein-free diet until 9–12 months of age and for at least 6 months following the initial implementation of the exclusion diet. It is then appropriate to determine if they have become tolerant/outgrown their reactions to cow’s milk protein.

The algorithm indicates which infants should be considered for reintroduction of milk protein at home to determine if the child has developed tolerance. There is no standard approach to adding milk protein back into the diet but following best available evidence, it is recommended to start with small amounts of well-cooked milk, for example, malted-milk biscuits, then stepping up a ‘Milk Ladder’ using, for example, cakes, then baked-milk dishes, to eventually having large amounts of plain milk. This should only be done when the child is well and ideally under the guidance of a dietitian. If a child reacts at any step of the Ladder, it is recommended to fall back to the step on the Ladder where foods were tolerated and continue to eat these.

The child should then be challenged with larger amounts, or with less heated/cooked milk again in 4–6 months, that is, attempt to step further up the Ladder.

In children who remain allergic to cow’s milk, a hypoallergenic formula should ideally be prescribed until the age of 2 years for nutritional reasons even if they are tolerating some dairy products. However, in children managing to consume a range of milk containing foods, a dietitian will be able to advise if, following a nutritional assessment, commercially available cow’s milk-free alternatives could be used.

CONCLUSION

The recognition and management of CMA is a challenge for primary care. The many symptoms with which an infant can present, either alone or in combination are commonly seen in the general practice setting and many will not be due to CMA.

The variation in the feeding methods of these infants and the variable natural history of the disease adds to the challenges. Earlier recognition and effective management should reduce costs, both financially and in terms of quality of life. Referring to secondary care only when primary care management is not considered appropriate, prescribing the most appropriate formulas, and avoiding unnecessary medications, investigations, and referrals for previously ‘unexplained’ symptoms should help reduce as much as possible the burden of CMA on UK primary care.

Notes

Provenance

Freely submitted; not externally peer reviewed.

Competing interests

Joanne Walsh received funding for consultancy work and educational lecture fees from Mead Johnson, Danone and Thermo Fisher. Carina Venter has received funding for educational lectures and research grants from Mead Johnson, Danone, Vitaflo, Pfizer and GlaxoSmithKline. Trevor Brown has received lecture fees and support to attend professional conferences from Mead Johnson, Danone and Abbott and funding for consultancy work from Danone and Abbott. Adam T Fox has received research funding from Danone and lecturing/consultancy fees from Danone, Mead Johnson, Abbott, Lactofree and Nestle. Neil Shah has no competing interests.

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  • Received June 11, 2013.
  • Accepted June 11, 2013.
  • © British Journal of General Practice 2014

REFERENCES

  1. 1.↵
    1. Venter C,
    2. Pereira B,
    3. Voigt K,
    4. et al.
    (2008) Prevalence and cumulative incidence of food hypersensitivity in the first 3 years of life. Allergy 63(3):354–359.
    OpenUrlCrossRefPubMed
  2. 2.↵
    1. National Institute for Health and Care Excellence
    (2011) Diagnosis and assessment of food allergy in children and young people in primary care and community settings (NICE, London) CG116.
  3. 3.↵
    1. Sladkevicius E,
    2. Nagy E,
    3. Lack G,
    4. Guest JF
    (2010) Resource implications and budget impact of managing cow milk allergy in the UK. J Med Econ 13(1):119–128.
    OpenUrlPubMed
  4. 4.↵
    1. Vandenplas Y,
    2. Koletzko S,
    3. Isolauri E,
    4. et al.
    (2007) Guidelines for the diagnosis and management of cow’s milk protein allergy in infants. Arch Dis Child 92(10):902–908.
    OpenUrlAbstract/FREE Full Text
  5. 5.↵
    1. Venter C,
    2. Brown T,
    3. Shah N,
    4. et al.
    (2013) Diagnosis and management of non-IgE-mediated cow’s milk allergy in infancy — a UK primary care practical guide. Clin Transl Allergy 3(1):23, http://www.ctajournal.com/content/3/1/23 (accessed 26 Nov 2013).
    OpenUrl
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British Journal of General Practice: 64 (618)
British Journal of General Practice
Vol. 64, Issue 618
January 2014
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A practical approach for UK primary care on the management of cow’s milk allergy in infants
Joanne Walsh, Carina Venter, Trevor Brown, Neil Shah, Adam T Fox
British Journal of General Practice 2014; 64 (618): 48-49. DOI: 10.3399/bjgp14X676591

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A practical approach for UK primary care on the management of cow’s milk allergy in infants
Joanne Walsh, Carina Venter, Trevor Brown, Neil Shah, Adam T Fox
British Journal of General Practice 2014; 64 (618): 48-49. DOI: 10.3399/bjgp14X676591
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