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Navarrete-Rodriguez E.M.,Servicio de Alergia e Inmunologia Clinica Pediatrica | Del Rio-Navarro B.E.,Servicio de Alergia e Inmunologia Clinica Pediatrica | Garcia-Aranda J.A.,Direccion General | Medeiros M.,Laboratorio Of Investigacion En Nefrologia Y Metabolismo Mineral Oseo | And 3 more authors.
Boletin Medico del Hospital Infantil de Mexico | Year: 2015

Background: The backbone of food allergy treatment is the restriction of causative foods. These interventions have shown that children who restrict the consumption of basic foods have a higher risk of malnutrition.The aim of the study was to identify the nutritional status of patients with elimination diet, characterizing their anthropometric indexes and identifying the percentage of patients in the group with true food allergies. Methods: A cross-sectional study was carried out from January to October 2014 at the Hospital Infantil de Mexico Federico Gomez. Patients 1 to 11 years of age with a history of elimination of at least one of five foods (eggs, milk, wheat, corn, soybeans) for a minimum of 6 months were included. Full nutritional assessment was performed by comparing the anthropometric indexes to z score for age. Data analysis used descriptive statistics. Kruskal-Wallis and Spearman correlation were performed. Results: The most frequent eliminated foods were milk, soy, eggs, corn, and wheat. Comparing the number of foods eliminated with different anthropometric indexes, with a greater amount of eliminated food, the z-score of weight/age (W/A), height/age (H/A) and weight/height (W/H) were lower and the most affected index was fat reserve. Only in 5% of children was food allergy confirmed. Conclusions: The study confirms the need for nutrition counseling for patients who have elimination diets and overdiagnosis of food allergy. © 2015. Source

Navarrete-Rodriguez E.M.,Servicio de Alergia e Inmunologia Clinica Pediatrica | Del Rio-Navarro B.E.,Servicio de Alergia e Inmunologia Clinica Pediatrica | Pozo-Beltran C.F.,Servicio de Alergia e Inmunologia Clinica Pediatrica | Garcia-Fajardo D.E.,Servicio de Alergia e Inmunologia Clinica Pediatrica | And 2 more authors.
Revista Alergia Mexico | Year: 2014

Background: Food allergy diagnosis is performed by a double blind placebo controlled challenge; however, in a lot of patients, it is only based on clinical history, skin prick tests, or parents' perception. There is a high frequency of elimination diets without an adequate approach. Objective: To analyze the results of diagnostic tests in a group of children with elimination diet-based on suspected food allergy and verify such studies with double blind placebo-controlled test challenge. Material and method: An observational, analytical and prospective study was done in a group of patients with elimination diet for suspected food allergy. We performed prick test, Prick-to-Prick test and patch test and the positive ones were verified by double-blind placebo-controlled challenge. Results: Fourty-three patients were included within a total of 1,935 tests. Both approach for immediate and late sensitivity had not statistically significant relationship between a positive test and the elimination of food. Until now, we had 4 (8%) positive challenges out of 50. Conclusion: The frequency of allergy proved by double-blind placebocontrolled test in 50 challenges was of 8% (4/50), thus, in the preliminary report we found a high frequency of elimination diets without adequate support. It is very important that food allergy diagnosis is accurate and based on an appropriate approach; since the implementation of an elimination diet in pediatric population can have a negative influence on their growth and development. Source

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