Should a patient with systemic mastocytosis be vaccinated against COVID-19?
Deve um doente com mastocitose sistêmica ser vacinado contra a COVID-19?
Márcio Mesquita; Ana Rita Presa; Mariana Ribas Laranjeira; Maria João Sousa; Sofia Ramalheira; Ana Reis Ferreira; Susana Cadinha
Abstract
A 26-year-old woman was referred to the allergy department for two episodes of anaphylaxis after intake of non-steroidal antiinflammatory drugs. In both episodes she was evaluated at the emergency department, and her levels of tryptase were 141 ug/L and 117 ug/L, respectively. Baseline tryptase was 92 ug/L. Bone marrow biopsy, myelogram, and immunophenotypic study were performed, confirming systemic mastocytosis. In patients with mast cell disorders, the risk of anaphylaxis after mRNA vaccine against COVID-19 has been under debate. Considering the occupational risk of COVID-19, the risk of anaphylaxis upon exposure to the vaccine was discussed with the patient and, after consent, Pfizer/BioNTech® BNT162B2 was administered under allergist supervision. No premedication was administered and both vaccine inoculations occurred without eliciting mast cell symptoms.
Keywords
Resumo
Mulher de 26 anos enviada à consulta de imunoalergologia após dois episódios de anafilaxia no contexto de ingestão de antiinflamatórios. Em ambos os episódios foi observada no Serviço de Urgência. Os valores de triptase nos episódios foram 141 ug/L e 117 ug/L, respetivamente. A triptase basal 92 ug/L. Realizou biópsia de medula óssea, mielograma e estudo imunofenotípico que confirmaram mastocitose sistêmica. Nos doentes com doença mastocitária, o risco de anafilaxia após administração de vacinas mRNA contra a COVID-19 tem sido debatido. Considerando o risco de exposição à COVID-19, o risco de anafilaxia após administração da vacina foi discutido com a doente e, após consentimento, a vacina Pfizer/BioNTech® BNT162B2 foi administrada sob vigilância de um alergologista. Não foi administrada pré-medicação, e a doente recebeu as duas doses da vacina sem evidenciar sintomatologia relacionada com ativação mastocitária.
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Referências
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Submetido em:
02/04/2021
Aceito em:
08/04/2021
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