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Vasco AE, Talano JA, Broglie L. Hemophagocytic Lymphohistiocytosis in Adolescents and Young Adults: Genetic Predisposition and Secondary Disease. Med Clin North Am 2024; 108:189-200. [PMID: 37951650 DOI: 10.1016/j.mcna.2023.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Hemophagocytic lymphohistiocytosis (HLH) is a disorder of impaired immune regulation resulting in hyperinflammation that is ultimately fatal if not treated. HLH is categorized into familial disease, caused by genetic mutations affecting the function of cytotoxic T lymphocytes and natural killer cells, and secondary disease, triggered by infections, malignancies, rheumatologic disorders, or immune deficiency. Adolescent and young adults with HLH represent a unique population with specific diagnostic challenges. Here we review the diagnostic criteria, possible etiologies, pathophysiology, and management of HLH with focus on the adolescent population.
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Affiliation(s)
- Alejandra Escobar Vasco
- Medical College of Wisconsin, 8701 Watertown Plank Road, MFRC 3018, Milwaukee, WI 53226, USA; Division of Hematology/Oncology/Blood and Marrow Transplantation, Department of Pediatrics, Medical College of Wisconsin, 8701 Watertown Plank Road, MFRC 3018, Milwaukee, WI 53226, USA
| | - Julie-Ann Talano
- Medical College of Wisconsin, 8701 Watertown Plank Road, MFRC 3018, Milwaukee, WI 53226, USA; Division of Hematology/Oncology/Blood and Marrow Transplantation, Department of Pediatrics, Medical College of Wisconsin, 8701 Watertown Plank Road, MFRC 3018, Milwaukee, WI 53226, USA
| | - Larisa Broglie
- Medical College of Wisconsin, 8701 Watertown Plank Road, MFRC 3018, Milwaukee, WI 53226, USA; Division of Hematology/Oncology/Blood and Marrow Transplantation, Department of Pediatrics, Medical College of Wisconsin, 8701 Watertown Plank Road, MFRC 3018, Milwaukee, WI 53226, USA.
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Cirotski DS, Cunningham MT, Loew T, Panicker J. Hemophagocytic Lymphohistiocytosis Syndrome Secondary to Disseminated Histoplasmosis in a Presumably Immunocompetent Adolescent: A Novel Case. Pediatr Hematol Oncol 2022; 39:755-761. [PMID: 35476626 DOI: 10.1080/08880018.2022.2055246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Daniel S Cirotski
- University of Kansas School of Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Mark T Cunningham
- Department of Pathology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Thomas Loew
- Division of Pediatric Hematology/Oncology, University of Kansas School of Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Jyoti Panicker
- Division of Pediatric Hematology/Oncology, University of Kansas School of Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
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Outcome of Viral-associated Hemophagocytic Lymphohistiocytosis at a Tertiary Hospital. Pediatr Infect Dis J 2022; 41:330-334. [PMID: 34845149 DOI: 10.1097/inf.0000000000003401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Little is known about viral-associated hemophagocytic lymphohistiocytosis (HLH) in Oman. This study was done to assess the epidemiology, clinical features and outcome of viral-associated HLH in our setting. METHODS We retrospectively reviewed children (0-18 years) managed for viral-associated HLH at the Sultan Qaboos University Hospital, Oman, over a 15-year period (2006-2020). Patients' medical records were used to describe their demographic, clinical and laboratory features, management and outcome. RESULTS Fifty-six children were managed for HLH at Sultan Qaboos University Hospital over the last 15 years (2006-2020) of whom a third (19; 34%) had a viral trigger. The median age at the time of diagnosis of viral-associated HLH was 83 (13-96) months. Fever, cytopenia, hyperferritinemia and evidence of hemophagocytosis in bone marrow were the most consistent findings. Most of these children had either genetic predisposition to HLH (8/19; 42%) or underlying immunodeficiency secondary to malignant conditions or chemotherapy/hematopoietic stem cell transplantation (6/19; 32%). Epstein-Barr virus (9; 47%) followed by cytomegalovirus (6; 31%) was the most common viral trigger in our setting. Treatment included antivirals (8; 42%), HLH 2004 protocol (4; 21%), rituximab (4; 21%) and hematopoietic stem cell transplantation (3; 16%). Fourteen children (74%) had full recovery. CONCLUSIONS In our small cohort, viral-associated HLH was more frequently encountered in children with genetic predisposition to HLH or children with underlying immunodeficiency. In addition, we found that the outcome is overall good for children who have no genetic predisposition to HLH and children with genetic predisposition who underwent hematopoietic stem cell transplantation.
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Hisamura M, Asai H, Sakata N, Oi H, Taguchi H. Multisystem Inflammatory Syndrome in Children: A Case Report From Japan. Cureus 2022; 14:e23682. [PMID: 35510024 PMCID: PMC9060735 DOI: 10.7759/cureus.23682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2022] [Indexed: 12/05/2022] Open
Abstract
This study reports a case of multisystem inflammatory syndrome in children (MIS-C). Although MIS-C is currently not widespread in Japan, it is important to consider this syndrome, particularly when the patient is younger than 21 years and presents with fever and shock symptoms associated with COVID-19. According to the latest statistics updated by the Centers for Disease Control and Prevention in early 2021, the total number of MIS-C patients is only 1659 and there have been no reports from Japan. Therefore, information to accurately diagnose MIS-C is needed. This study is the first case report of MIS-C in Japan, and it proposes information to identify this serious syndrome.
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Clinical Characteristics of Paediatric Hyperinflammatory Syndrome in the Era of Corona Virus Disease 2019 (COVID-19). Indian J Clin Biochem 2021; 36:404-415. [PMID: 33716413 PMCID: PMC7936863 DOI: 10.1007/s12291-021-00963-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 02/17/2021] [Indexed: 12/12/2022]
Abstract
The pandemic of COVID-19 initially appeared to cause only a mild illness in children. However, it is now apparent that a small percentage of children can develop a hyperinflammatory syndrome labeled as Pediatric inflammatory multisystem syndrome—temporally associated with SARS-CoV-2 (PIMS-TS) with a phenotype resembling Kawasaki disease (KD) ('Kawa-COVID-19′). Features of this newly recognized condition may include fever, hypotension, severe abdominal pain and cardiac dysfunction, evidence of inflammation, and single or multi organ dysfunction in the absence of other known infections. Children emerge to have mild symptoms compared to adults, perhaps due to reduced expression of the angiotensin converting enzyme (ACE)-2 receptor (the target of SARS-CoV-2) gene, trained innate immunity, and a young and fit immune system. Some of these children may share features of Kawasaki disease, toxic shock syndrome or cytokine storm syndrome. They can deteriorate rapidly and may need intensive care support as well. The PCR test is more often negative although most of the children have antibodies to SARS-CoV-2. Although the pathogenesis is not clearly known, immune-mediated injury has been implicated.
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Syndrome inflammatoire avec atteinte multisystémique post-infection par le SARS-CoV-2 chez l’enfant : quand l’envisager et comment le prendre en charge ? PERFECTIONNEMENT EN PÉDIATRIE 2021. [PMCID: PMC7709602 DOI: 10.1016/j.perped.2020.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pessoa FS, Gonçalves VC, Lacerda EMDCB. Haemophagocytic lymphohistiocytosis secondary to intrauterine cytomegalovirus infection. Rev Inst Med Trop Sao Paulo 2021; 63:e15. [PMID: 33656138 PMCID: PMC7924979 DOI: 10.1590/s1678-9946202163015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/26/2021] [Indexed: 12/24/2022] Open
Abstract
Congenital cytomegalovirus infection causes lethal diseases with neurological,
visual, auditory and systemic injuries, including the hemophagocytic syndrome.
Hemophagocytic lymphohistiocytosis (HLH) can be caused by primary hereditary
immunological defects, as well as several infectious triggering factors, such as
viruses, bacteria and fungus, among them the cytomegalovirus (CMV). Here we
present the case report of a male newborn male, delivered by cesarean at term
(gestation age of 39 weeks), weighing 3,250 g, with suffusion skin lesions
spread throughout the body, anemia, generalized edema, hepatosplenomegaly,
thrombocytopenia associated with grunts and difficulty breathing, treated with
ganciclovir after receiving the diagnosis of congenital CMV infection. After a
few days of hospitalization, the patient presented with high fever, persistent
hepatosplenomegaly and pancytopenia, in addition to elevated ferritin and
triglycerides, receiving the diagnosis of HLH treated with immunosuppressive
therapy, corticosteroids and intravenous human immunoglobulin. The present case
report highlights the importance for health professionals to carry out the
investigation of congenital diseases, especially in developing countries, as
well as their complications, such as HLH.
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Affiliation(s)
- Fabrício Silva Pessoa
- Universidade CEUMA, São Luís, Maranhão, Brazil.,Hospital da Criança Dr. Odorico de Amaral Matos, São Luís, Maranhão, Brazil
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Kosmeri C, Koumpis E, Tsabouri S, Siomou E, Makis A. Hematological manifestations of SARS-CoV-2 in children. Pediatr Blood Cancer 2020; 67:e28745. [PMID: 33009893 PMCID: PMC7646039 DOI: 10.1002/pbc.28745] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/11/2020] [Accepted: 09/18/2020] [Indexed: 12/18/2022]
Abstract
Infection from severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), though mainly a respiratory disease, can impair many systems, including causing hematological complications. Lymphopenia and hypercoagulability have been reported in adults with coronavirus disease 2019 (COVID-19) and are considered markers of poor prognosis. This review summarizes the hematological findings in children with SARS-CoV-2 infection. The majority of infected children had a normal leukocyte count, while the most common white blood cell abnormality was leukopenia. Lymphopenia, which may be a marker of severe disease, was rarer in children than in adults, possibly due to their immature immune system or due to the less severe manifestation of COVID-19 in this age group. Age may have an impact, and in neonates and infants the most common abnormality was lymphocytosis. Abnormalities of red blood cells and platelets were uncommon. Anemia and hypercoagulability were reported mainly in children presenting the novel multisystem inflammatory syndrome (MIS) associated with SARS-CoV-2.
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Affiliation(s)
- Chrysoula Kosmeri
- Department of Pediatrics, Faculty of MedicineUniversity of IoanninaIoanninaGreece
| | - Epameinondas Koumpis
- Department of Internal Medicine, Faculty of MedicineUniversity of IoanninaIoanninaGreece
| | - Sophia Tsabouri
- Department of Pediatrics, Faculty of MedicineUniversity of IoanninaIoanninaGreece
| | - Ekaterini Siomou
- Department of Pediatrics, Faculty of MedicineUniversity of IoanninaIoanninaGreece
| | - Alexandros Makis
- Department of Pediatrics, Faculty of MedicineUniversity of IoanninaIoanninaGreece
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Pediatric hemophagocytic lymphohistiocytosis. Blood 2020; 135:1332-1343. [PMID: 32107531 DOI: 10.1182/blood.2019000936] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/27/2020] [Indexed: 12/13/2022] Open
Abstract
Hemophagocytic lymphohistiocytosis (HLH) is a syndrome describing patients with severe systemic hyperinflammation. Characteristic features include unremitting fever, cytopenias, hepatosplenomegaly, and elevation of typical HLH biomarkers. Patients can develop hepatitis, coagulopathy, liver failure, central nervous system involvement, multiorgan failure, and other manifestations. The syndrome has a high mortality rate. More and more, it is recognized that while HLH can be appropriately used as a broad summary diagnosis, many pediatric patients actually suffer from an expanding spectrum of genetic diseases that can be complicated by the syndrome of HLH. Classic genetic diseases in which HLH is a typical and common manifestation include pathogenic changes in familial HLH genes (PRF1, UNC13D, STXBP2, and STX11), several granule/pigment abnormality genes (RAB27A, LYST, and AP3B1), X-linked lymphoproliferative disease genes (SH2D1A and XIAP), and others such as NLRC4, CDC42, and the Epstein-Barr virus susceptibility diseases. There are many other genetic diseases in which HLH is an infrequent complication of the disorder as opposed to a prominent manifestation of the disease caused directly by the genetic defect, including other primary immune deficiencies and inborn errors of metabolism. HLH can also occur in patients with underlying rheumatologic or autoinflammatory disorders and is usually designated macrophage activation syndrome in those settings. Additionally, HLH can develop in patients during infections or malignancies without a known (or as-yet-identified) genetic predisposition. This article will attempt to summarize current concepts in the pediatric HLH field as well as offer a practical diagnostic and treatment overview.
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Abstract
Hemophagocytic lymphohistiocytosis (HLH) is a rare but severe form of immune dysregulation often presenting as unremitting fever, cytopenia, hepatosplenomegaly, coagulopathy, and elevation of typical HLH biomarkers. HLH is universally fatal, if left untreated. The HLH-2004 criteria are widely used to diagnose this condition, but there is growing concerns across different settings that its application may result in undertreatment of certain patients. There is an expanding spectrum of genetic conditions that can be complicated by HLH. This review summarizes the current concepts in HLH, the lessons learned from the past, and provide an overview of the latest diagnostic and treatment modalities.
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Nakra NA, Blumberg DA, Herrera-Guerra A, Lakshminrusimha S. Multi-System Inflammatory Syndrome in Children (MIS-C) Following SARS-CoV-2 Infection: Review of Clinical Presentation, Hypothetical Pathogenesis, and Proposed Management. CHILDREN (BASEL, SWITZERLAND) 2020; 7:E69. [PMID: 32630212 PMCID: PMC7401880 DOI: 10.3390/children7070069] [Citation(s) in RCA: 199] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/23/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection may result in the multisystem inflammatory syndrome in children (MIS-C). The clinical presentation of MIS-C includes fever, severe illness, and the involvement of two or more organ systems, in combination with laboratory evidence of inflammation and laboratory or epidemiologic evidence of SARS-CoV-2 infection. Some features of MIS-C resemble Kawasaki Disease, toxic shock syndrome, and secondary hemophagocytic lymphohistiocytosis/macrophage activation syndrome. The relationship of MIS-C to SARS-CoV-2 infection suggests that the pathogenesis involves post-infectious immune dysregulation. Patients with MIS-C should ideally be managed in a pediatric intensive care environment since rapid clinical deterioration may occur. Specific immunomodulatory therapy depends on the clinical presentation. The relationship between the immune response to SARS-CoV-2 vaccines in development and MIS-C requires further study.
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Affiliation(s)
- Natasha A. Nakra
- Department of Pediatrics, Division of Infectious Diseases, University of California Davis School of Medicine, Sacramento, CA 95817, USA;
| | - Dean A. Blumberg
- Department of Pediatrics, Division of Infectious Diseases, University of California Davis School of Medicine, Sacramento, CA 95817, USA;
| | - Angel Herrera-Guerra
- Department of Pediatrics, Division of Allergy, Immunology, and Rheumatology, University of California Davis School of Medicine, Sacramento, CA 95817, USA;
| | - Satyan Lakshminrusimha
- Department of Pediatrics, Division of Neonatology, University of California Davis School of Medicine, Sacramento, CA 95817, USA;
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