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. 2024 Mar 27;20(1):26.
doi: 10.1186/s13223-023-00858-4.

Elevated tryptase level in a child with idiopathic anaphylaxis: a case of hereditary alpha-tryptasemia

Affiliations

Elevated tryptase level in a child with idiopathic anaphylaxis: a case of hereditary alpha-tryptasemia

Vicky Le Blanc et al. Allergy Asthma Clin Immunol. .

Abstract

Hereditary alpha-tryptasemia (HαT) is an autosomal dominant disorder estimated to affect 5% of the population. High baseline tryptase level is a consistent finding, but there is a great variability of clinic manifestations, including no symptoms at all. We describe a case of HαT in a 5 years 8 months old girl manifesting with idiopathic anaphylaxis and elevated baseline tryptase level. As more cases of HαT are described, a better understanding of the clinical phenotype will be acquired.

Keywords: Elevated tryptase level; Hereditary alpha-tryptasemia; Idiopathic anaphylaxis.

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Conflict of interest statement

The authors declare that they have no competing interests.

References

    1. Lyons JJ. Hereditary alpha tryptasemia genotyping and associated clinical features. Immunol Allergy Clin North Am. 2018;38:483–495. doi: 10.1016/j.iac.2018.04.003. - DOI - PMC - PubMed
    1. Lyons JJ, Chovanec J, O’Connell MP, et al. Heritable risk for severe anaphylaxis associated with increased α-tryptase-encoding germline copy number at TPSAB1. J Allergy Clin Immunol. 2021;147:622–632. doi: 10.1016/j.jaci.2020.06.035. - DOI - PubMed