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Clinical and Translational Allergy

Open Access

Clinical manifestations and severity of cow’s milk anaphylaxis in children

  • Zahra Pourpak1,
  • Pegah Teymourpour1,
  • Saeideh Barzegar1,
  • Raheleh Shokouhi1,
  • Mohammadreza Fazlollahi1 and
  • Mostafa Moin1
Clinical and Translational Allergy20111(Suppl 1):P47

Published: 12 August 2011


UrticariaSkin Prick TestSeverity GradeAnaphylactic ShockAllergen Extract


Anaphylaxis is a potentially fatal allergic reaction which is rapid in onset. Cow's milk is the most common allergen which can trigger anaphylaxis in Iranian children.The aim of this study is to describe the clinical features and severity of cow's milk anaphylaxis in children.


In this study all children(<18 years old) with suspicious history of cow's milk anaphylaxis who had been referred to IAARI(Immunology,Asthma and Allergy Research Institute)during 2005(JAN)—2010(SEP) were considered.A detailed questionnaire was fulfilled for each patient. A specific severity grading for anaphylaxis with five levels was also used. Skin Prick Test(SPT) with allergen extract(cow's milk) was performed at least 4—6 weeks after patient's last anaphylaxis attack. Cow's milk specific IgE and total IgE level were measured by Immunocap system.Patients with clear history and one positive laboratory test and patients with both positive laboratory tests(SPT and cow's milk specific IgE)were included.


Among 49 patients ,29(59.2‰) were male and the rest were female.Patients' mean age at the time of first anaphylactic attack was 5.7±4.3 months.The percentages of severity grades 1- 5 were 2‰,6.1‰,18.4‰,69.4‰,4.1‰ respectively. Most common clinical manifestations were in descending order as: Cutaneous98‰(urticaria,periorbital oedema,flushing),Respiratory91.8‰(dyspnea,coughing,wheezing), Gastrointestinal 55.1‰(nausea,vomiting,abdominal pain),Cardiovascular 46.9‰ and Neurologic 46.9‰.Twenty- four patients had positive SPT. Mean total IgE level was 239.6±3.3 (KU/L) and mean cow's milk specific IgE was 19.28±27.2(KU/L).


Since the patients’mean age at the time of first anaphylactic shock was 5.7±4.3 months, we conclude that cow's milk anaphylaxis may happen very early in life. Most common manifestations are cutaneous and respiratory symptoms. Majority of attacks have been of moderate to relatively severe degree(grades 3 and 4) so equipping the general practitioners and pediatricians with enough knowledge about cow's milk anaphylaxis is needed.

Authors’ Affiliations

Immunology,Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran


© Pourpak et al; licensee BioMed Central Ltd. 2011

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.