Hemophagocytic lymphohistiocytosis with high serum levels of IL-18 and predominant lymphocyte activation in a neonate born to a mother with adult-onset Still's disease

Hashimoto, Megumi; Ogata, Shohei; Yamaguchi, Ayano; Kawada, Kazuo; Kenmochi, Manabu; Ebato, Takasuke; Nomoto, Keiko; Bando, Yuki; Shimodera, Saeko; Shibata, Hirofumi; Ono, Shintaro; Nakayama, Manabu; Yasumi, Takahiro; Ito, Masahiro

doi:10.1016/j.clim.2017.04.007

Cited by 5 publications

(2 citation statements)

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“…Studies were excluded if they did not discuss nHLH ( n = 280); aggregated nHLH patient data with all ages ( n = 83); provided insufficient detail and/or data describing a case of nHLH ( n = 28); and for other reasons ( n = 8). Two‐hundred‐five cases of nHLH from 142 articles were included in our analysis 12–152 …”

Section: Resultsmentioning

confidence: 99%

Neonatal hemophagocytic lymphohistiocytosis: A meta‐analysis of 205 cases

Kranz,

Hahn,

Thompson

et al. 2024

Pediatric Blood & Cancer

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BackgroundNeonatal hemophagocytic lymphohistiocytosis (nHLH), defined as HLH that presents in the first month of life, is clinically devastating. There have been few large descriptive studies of nHLH.ObjectivesThe objective of this study was to perform a meta‐analysis of published cases of nHLH.MethodsA comprehensive literature database search was performed. Cases of HLH were eligible for inclusion if clinical analysis was performed at age ≤30 days. Up to 70 variables were extracted from each case.ResultsA total of 544 studies were assessed for eligibility, and 205 cases of nHLH from 142 articles were included. The median age of symptom onset was day of life 3 (interquartile range [IQR]: 0–11, n = 141). Median age at diagnosis was day of life 15 (IQR: 6–27, n = 87). Causes of HLH included familial HLH (48%, n = 99/205), infection (26%, n = 53/205), unknown (17%, n = 35/205), macrophage activation syndrome/rheumatologic (2.9%, n = 4/205), primary immune deficiency (2.0%, n = 5/205), inborn errors of metabolism (2.4%, n = 5/205), and malignancy (2.0%, n = 4/205). Fever was absent in 19% (n = 28/147) of all neonates and 39% (n = 15/38) of preterm neonates. Bicytopenia was absent in 26% (n = 47/183) of patients. Central nervous system (CNS) manifestations were reported in 63% of cases (n = 64/102). Liver injury (68%, n = 91/134) and/or liver failure (24%, n = 32/134) were common. Flow cytometry was performed in 22% (n = 45/205) of cases. Many patients (63%, n = 121/193) died within the period of reporting. Discernable values for HLH diagnostic criteria were reported between 30% and 83% of the time.ConclusionsEvaluation of nHLH requires rapid testing for a wide range of differential diagnoses. HLH diagnostic criteria such as fever and bicytopenia may not occur as frequently in the neonatal population as in older pediatric populations. Neurologic and hepatic manifestations frequently occur in the neonatal population. Current reports of nHLH suggest a high mortality rate. Future publications containing data on nHLH should improve reporting quality by reporting all clinically relevant data.

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Section: Resultsmentioning

confidence: 99%

Neonatal hemophagocytic lymphohistiocytosis: A meta‐analysis of 205 cases

Kranz,

Hahn,

Thompson

et al. 2024

Pediatric Blood & Cancer

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“…Her condition improved with immunosuppressive therapy and the fetus was delivered prior to treatment. There are also two cases reported of neonatal HLH associated with maternal AOSD 15,16 .…”

Section: Discussionmentioning

confidence: 99%

Haemophagocytic lymphohistiocytosis in pregnancy and the postpartum period: A retrospective case series analysis

Thompson,

Banerjee,

Churchill

et al. 2023

NIHR Open Res

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Introduction: Haemophagocytic lymphohistiocytosis (HLH) is an extremely rare condition characterised by excessive immune activation leading to haemophagocytic activity and has seldom been reported in pregnancy. HLH manifests as relapsing fevers with features of multi- organ failure and has a high mortality. Methods: A retrospective case series analysis using national data from MBRRACE-UK maternal death reports (n=5) and case notes from patients diagnosed with HLH during pregnancy at New Cross Hospital, Wolverhampton (n=2) between 2012 and 2021. Results: A total of seven cases were included. Cases uniformly presented with fever and experienced prodromal illnesses consisting of lymphadenopathy, fevers, and malaise. Gestation at presentation ranged from 9/40 to 11 months postpartum. All patients had multiple cytopaenias. Other common features included elevated liver enzymes (n=5), hyperferritinaemia (n=5), splenomegaly (n=4), hypofibrinogenemia (n=4) and elevated soluble interleukin-2 receptor α (CD25) levels (n=3). Underlying causes were identified in four cases. Median time from presentation to diagnosis was 35 days. Bone marrow biopsy was diagnostic in a majority of cases. Corticosteroids and ciclosporin were the most frequently used treatments. In some cases early delivery by caesarean section or termination of pregnancy was necessary to permit maternal treatment. Progression to multi-organ failure resulting in maternal death occurred in five cases: two cases survived. Pregnancy outcomes were: livebirth at term (n=2), preterm livebirth (n=3), termination of pregnancy (n=1), and miscarriage (n=1). Of the surviving infants, one had bone marrow suppression with anaemia at birth and sensorineural deafness. Conclusions: Due to the rarity of the condition, diagnosis is often delayed. In view of the high mortality, clinicians should consider HLH early when reviewing pregnant patients with unexplained pyrexia and multi-organ dysfunction. Early involvement of haematology should be sought, as prompt diagnosis is crucial for meaningful attempts at curative therapy. Important treatment considerations include fetal viability, maternal condition and treatment toxicity.

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