Retrospective single-centre analysis of diagnostic approach to adult-onset haemophagocytic lymphohistiocytosis.
Lymphohistiocytosis
ferritin
macrophage activation
Journal
Internal medicine journal
ISSN: 1445-5994
Titre abrégé: Intern Med J
Pays: Australia
ID NLM: 101092952
Informations de publication
Date de publication:
06 2021
06 2021
Historique:
revised:
10
04
2020
received:
26
03
2019
accepted:
27
04
2020
pubmed:
11
5
2020
medline:
10
8
2021
entrez:
11
5
2020
Statut:
ppublish
Résumé
Haemophagocytic lymphohistiocytosis (HLH) is a rare disorder with a poor prognosis characterised by substantial immune activation leading to end-organ failure. In childhood, genetic defects that impair cytotoxic function of natural killer cells and T cells. (HLH) are often identified. In adults, clinical manifestations are similar to those observed in children but the aetiology is often unclear. To evaluate whether poor prognosis for adult HLH is in part due to lack of awareness of the disorder, which results in incomplete investigation and failure to implement timely treatment. We performed a retrospective case series of adult-onset HLH in a tertiary hospital in Australia. We evaluated clinical characteristics, treatment and outcome, and related these to application of standard diagnostic criteria for HLH. In our centre, incomplete assessment of HLH criteria was common. Serum ferritin was the criterion most commonly assessed. Hyperferritinaemia ≥10 000 μg/L was highly sensitive in detecting patients with adult-onset HLH; however, the majority of patients who had hyperferritinaemia ≥10 000 μg/L did not have adult-onset HLH. The present study highlights the importance of comprehensive application of diagnostic criteria to improve accuracy and timelines of the diagnosis of adult onset HLH.
Sections du résumé
BACKGROUND
Haemophagocytic lymphohistiocytosis (HLH) is a rare disorder with a poor prognosis characterised by substantial immune activation leading to end-organ failure. In childhood, genetic defects that impair cytotoxic function of natural killer cells and T cells. (HLH) are often identified. In adults, clinical manifestations are similar to those observed in children but the aetiology is often unclear.
AIMS
To evaluate whether poor prognosis for adult HLH is in part due to lack of awareness of the disorder, which results in incomplete investigation and failure to implement timely treatment.
METHODS
We performed a retrospective case series of adult-onset HLH in a tertiary hospital in Australia. We evaluated clinical characteristics, treatment and outcome, and related these to application of standard diagnostic criteria for HLH.
RESULTS
In our centre, incomplete assessment of HLH criteria was common. Serum ferritin was the criterion most commonly assessed. Hyperferritinaemia ≥10 000 μg/L was highly sensitive in detecting patients with adult-onset HLH; however, the majority of patients who had hyperferritinaemia ≥10 000 μg/L did not have adult-onset HLH.
CONCLUSION
The present study highlights the importance of comprehensive application of diagnostic criteria to improve accuracy and timelines of the diagnosis of adult onset HLH.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
939-947Informations de copyright
© 2020 Royal Australasian College of Physicians.
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