Anafilaxia durante o primeiro ano de vida em pacientes com alergia à proteína do leite de vaca
Anaphylaxis during the first year of life of infants with cow's milk protein allergy
Giovanna Hernandes y Hernandes; Larissa Marinovich; Rosane Vieira; Cynthia Mafra Fonseca de Lima; Cleonir de Morais Lui Beck; Antonio Carlos Pastorino; Ana Paula Beltran Moschione Castro
Resumo
Objetivo: Descrever as manifestações de anafilaxia precoce em lactentes com alergia à proteína do leite de vaca (APLV) e descrever as condutas terapêuticas utilizadas. Método: Estudo observacional transversal retrospectivo que analisou pacientes com APLV atendidos no Instituto da Criança e do Adolescente do Hospital das Clínicas da FMUSP, entre 1990-2015, que apresentaram sintomas de alergia no primeiro ano de vida, com diagnóstico de anafilaxia, comparados a pacientes alérgicos sem anafilaxia desencadeada por ingestão de leite de vaca. Os pacientes foram caracterizados de maneira epidemiológica, tipo de sintoma apresentado e tratamento realizado. Os dados foram analisados no programa estatístico GraphPad Software Inc. Para avaliar a associação entre categorias, foi utilizado o Teste Exato de Fisher, e para comparações entre grupos, o Teste de Mann Whitney. Os resultados de p < 0,05 foram considerados significativos. Resultados: De um total de 120 crianças avaliadas (68 M:52 F), 85 (70,83%) lactentes preencheram os critérios da World Allergy Organization (WAO) para anafilaxia. As manifestações de alergia IgE mediada foram prioritariamente cutâneas [102 (85%)]. Nos pacientes com diagnóstico de anafilaxia, as principais manifestações foram urticária [39 (45,8%)], vômito [36 (42,3%)] e dispneia [19 (22,3%)]. A recorrência do episódio de anafilaxia ocorreu em 41 (34,16%) pacientes. A adrenalina (45%) e o anti-histamínico (63,3%) foram os medicamentos mais utilizados. Observa-se também que 6 (7%) pacientes com diagnóstico de anafilaxia não receberam nenhum tratamento. Conclusão: Anafilaxia no primeiro ano de idade apresenta quadro clínico semelhante aos pacientes mais velhos, mas ainda há elevada taxa de recorrência de episódios e subtratamento. Mais estratégias de educação precisam ser desenvolvidas.
Palavras-chave
Abstract
Objective: To describe the early manifestations of anaphylaxis in infants with cow’s milk protein allergy (CMPA) and the therapeutic approach. Method: In this cross-sectional observational study, we retrospectively reviewed the medical records of patients with CMPA treated at the Institute for Children and Adolescents of Hospital das Clínicas, University of São Paulo Medical School, from 1990 to 2015. Patients who developed allergic symptoms during the first year of life and had a diagnosis of anaphylaxis were compared with allergic patients without anaphylaxis triggered by cow’s milk. Patients were characterized according to epidemiological features, type of symptoms, and treatment received. Data were analyzed using GraphPad software. Associations between categories were assessed by Fisher’s exact test, and groups were compared by the Mann-Whitney test. Results with p<0.05 were considered statistically significant. Results: Of 120 infants evaluated (68 male: 52 female), 85 (70.83%) met the World Allergy Organization criteria for anaphylaxis. Most infants had cutaneous manifestations of immunoglobulin E (IgE)-mediated allergy (n=102, 85%). In those with a diagnosis of anaphylaxis, the main manifestations were urticaria (n=39, 45.8%), vomiting (n=36, 42.3%), and dyspnea (n=19, 22.3%). Anaphylaxis recurred in 41 patients (34.16%). Epinephrine (45%) and antihistamines (63.3%) were the most used drugs. Six patients (7%) with a diagnosis of anaphylaxis received no treatment. Conclusion: Anaphylaxis during the first year of life showed clinical features similar to those of older pediatric patients, but the rates of episode recurrence and undertreatment are still high. More education strategies need to be developed.
Keywords
Referências
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Submetido em:
06/12/2021
Aceito em:
05/04/2022
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