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Fayand A, Cescato M, Le Corre L, Terré A, Wacheux M, Zhu YYJ, Melet A, Moreau TRJ, Bodaghi B, Bonnet F, Bronnimann D, Cuisset L, Faria R, Grateau G, Pillet P, Mulders-Manders CM, Neven B, Quartier P, Richer O, Savey L, Truchetet ME, Py BF, Boursier G, Herbeuval JP, Georgin-Lavialle S, Rodero MP. Pathogenic variants in the NLRP3 LRR domain at position 861 are responsible for a boost-dependent atypical CAPS phenotype. J Allergy Clin Immunol 2023; 152:1303-1311.e1. [PMID: 37506976 DOI: 10.1016/j.jaci.2023.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 07/13/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Cryopyrin-associated periodic syndrome (CAPS) is associated with NLRP3 pathogenic variants, mostly located in the NACHT (neuronal apoptosis inhibitor protein, MHC class 2 transcription activator, incompatibility locus protein from Podospora anserina, telomerase-associated protein) domain. Cold-induced urticarial rash is among the main clinical features. However, this study identified a series of 14 patients with pathogenic variants of the Y861 residue (p.Tyr861) of the LRR domain of NLRP3 and minimal prevalence of cold-induced urticarial rash. OBJECTIVES This study aimed to address a possible genotype/phenotype correlation for patients with CAPS and to investigate at the cellular levels the impact of the Y861C substitution (p.Tyr861Cys) on NLRP3 activation. METHODS Clinical features of 14 patients with CAPS and heterozygous substitution at position 861 in the LRR domain of NLRP3 were compared to clinical features of 48 patients with CAPS and pathogenic variants outside the LRR domain of NLRP3. IL-1β secretion by PBMCs and purified monocytes from patients and healthy donors was evaluated following LPS and monosodium urate crystal stimulation. RESULTS Patients with substitution at position 861 of NLRP3 demonstrated a higher prevalence of sensorineural hearing loss while being less prone to skin urticarial. In contrast to patients with classical CAPS, cells from patients with a pathogenic variant at position 861 required an activation signal to secrete IL-1β but produced more IL-1β during the early and late phase of secretion than cells from healthy donors. CONCLUSIONS Pathogenic variants of Y861 of NLRP3 drive a boost-dependent oversecretion of IL-1β associated with an atypical CAPS phenotype.
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Affiliation(s)
- Antoine Fayand
- Department of Internal Medicine, National Reference Center for Autoinflammatory Diseases and Amyloid A Amyloidosis, Tenon Hospital, Sorbonne Université, Paris, France; Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France
| | - Margaux Cescato
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France
| | - Laurent Le Corre
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France
| | - Alexandre Terré
- Department of Internal Medicine, National Reference Center for Autoinflammatory Diseases and Amyloid A Amyloidosis, Tenon Hospital, Sorbonne Université, Paris, France; Laboratoire Mécanismes Cellulaires et Moléculaires des Désordres Hématologiques et Implications Thérapeutiques, Institut Imagine, Institut National de la Santé et de la Recherche Médicale, Université Paris Cité, Paris, France
| | - Margaux Wacheux
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France
| | - Yixiang Y J Zhu
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France
| | - Armelle Melet
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France
| | - Thomas R J Moreau
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France; Translational Immunology Unit, Institut Pasteur, Université Paris Cité, Paris, France
| | - Bahram Bodaghi
- Department of Ophthalmology, Instituts Hospitalo-Universitaires FOReSIGHT, Pitié-Salpêtrière Hospital, Assistance Publique-Hȏpitaux de Paris, Sorbonne Université, Paris, France
| | - Fabrice Bonnet
- Service de Médecine Interne et Maladies Infectieuses, Hôpital Saint-André, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
| | - Didier Bronnimann
- Service de Médecine Interne et Maladies Infectieuses, Hôpital Saint-André, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
| | - Laurence Cuisset
- Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
| | - Raquel Faria
- Unidade de Imunologia Clínica, Centro Hospitalar Universitário do Porto, Porto, Portugal; Unit for Multidisciplinary Research in Biomedicine, School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health, Porto, Portugal
| | - Gilles Grateau
- Department of Internal Medicine, National Reference Center for Autoinflammatory Diseases and Amyloid A Amyloidosis, Tenon Hospital, Sorbonne Université, Paris, France
| | - Pascal Pillet
- Service de Pédiatrie et Rhumatologie Pédiatrique, Hôpital Pellegrin-Enfants, Bordeaux, France
| | - Catharina M Mulders-Manders
- Department of Internal Medicine, Radboud Expertise Center for Immunodeficiency and Autoinflammation, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Benedicte Neven
- Pediatric Immunology-Hematology and Rheumatology Unit, Necker Hospital, Université Paris Cité, Paris, France
| | - Pierre Quartier
- Pediatric Immunology-Hematology and Rheumatology Unit, Necker Hospital, Université Paris Cité, Paris, France; RAISE Reference Centre for Rare Diseases, Paris, France
| | - Olivier Richer
- Service de Pédiatrie et Rhumatologie Pédiatrique, Hôpital Pellegrin-Enfants, Bordeaux, France
| | - Léa Savey
- Department of Internal Medicine, National Reference Center for Autoinflammatory Diseases and Amyloid A Amyloidosis, Tenon Hospital, Sorbonne Université, Paris, France
| | - Marie-Elise Truchetet
- Department of Rheumatology, Hôpital Pellegrin, Bordeaux, France; Unite de Mixte Recherche 5164 ImmunoConcept, Bordeaux University Hospital, Bordeaux University, Bordeaux, France
| | - Bénédicte F Py
- Centre International de Recherche en Infectiologie, Université Lyon, Lyon, France; U1111, Institut National de la Santé et de la Recherche Médicale, Université Claude Bernard Lyon 1, Lyon, France; Unite de Mixte Recherche 5308, Centre National de la Recherche Scientifique, École Normale Supérieure de Lyon, Lyon, France
| | - Guilaine Boursier
- Laboratoire de Génétique des Maladies Rares et Autoinflammatoires, Service de Génétique Moléculaire et Cytogénomique, National Reference Center for Autoinflammatory Diseases and AA Amyloidosis, Centre Hospitalier Universitaire Montpellier, Université de Montpellier, Montpellier, France
| | - Jean-Philippe Herbeuval
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France
| | - Sophie Georgin-Lavialle
- Department of Internal Medicine, National Reference Center for Autoinflammatory Diseases and Amyloid A Amyloidosis, Tenon Hospital, Sorbonne Université, Paris, France.
| | - Mathieu P Rodero
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Centre National de la Recherche Scientifique, Université Paris Cité, Paris, France.
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Touitou I, Jéziorski E, Al-Saleh A, Carbasse A, Piram M. Quality of life in monogenic autoinflammatory diseases. A review. Joint Bone Spine 2023; 90:105475. [PMID: 36404572 DOI: 10.1016/j.jbspin.2022.105475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Systemic autoinflammatory diseases (SAIDs) are a group of disorders related to defective regulation of the innate immune system. Recurrence of inflammation can severely affect the patients' outcomes with a direct or indirect impact on their physical and mental health and/or global quality of life (QoL). We therefore sought to identify currently available QoL studies for these diseases as well as measurement tools at our disposal. BASIC PROCEDURES A systematic literature review was carried out with a focus on monogenic SAIDs. We inventoried the study designs developed in the selected publications, grouped them into similar topics, and listed the different outcome measures used for QoL. MAIN FINDINGS We recorded 53 bibliographic references evaluating the impact of monogenic SAIDs on the patients' QoL. These publications revealed 150 different study designs and 82 outcome measures used for their assessment. The best-explored topics were the overall patients' QoL, followed by the evaluation of their psychosocial and physical functioning. We found fair coverage of familial Mediterranean fever, poor investigation of the mixed hereditary recurrent fever (HRF) group, cryopyrin-associated periodic diseases and cherubism, and almost no study of the other monogenic SAIDs. CONCLUSIONS This work revealed areas requiring further investigation such as homogenization of concepts, study of uncommon or more recent diseases, and development of more specific and validated outcome measures for SAIDs.
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Affiliation(s)
- Isabelle Touitou
- CeRéMAIA, Department of Genetics, CHU de Montpellier, Inserm, University of Montpellier, A. de Villeneuve Hospital, 371, avenue Doyen-Giraud, Montpellier, France.
| | - Eric Jéziorski
- CeRéMAIA, Department of Genetics, CHU de Montpellier, Inserm, University of Montpellier, A. de Villeneuve Hospital, 371, avenue Doyen-Giraud, Montpellier, France; CeRéMAIA, Department of Pediatrics, CHU de Montpellier, Pediatric Department, Montpellier, France
| | - Afnan Al-Saleh
- CHU de Sainte Justine Research Centre, Department of Pediatrics, CHU de Sainte Justine, University of Montreal, Montreal, QC, Canada
| | - Aurélia Carbasse
- CeRéMAIA, Department of Pediatrics, CHU de Montpellier, Pediatric Department, Montpellier, France
| | - Maryam Piram
- CHU de Sainte Justine Research Centre, Department of Pediatrics, CHU de Sainte Justine, University of Montreal, Montreal, QC, Canada; CeRéMAIA, Department of Pediatric Rheumatology, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, France
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3
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Kato D, Yamaide F, Kida I, Takasaki Y, Sato N, Nakano T, Yamaide A, Shimojo N. A three-generation Muckle-Wells syndrome family: Detailed family history, physical examination, and inter-departmental collaboration. Mod Rheumatol Case Rep 2022; 6:282-287. [PMID: 34979568 DOI: 10.1093/mrcr/rxab037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/19/2021] [Accepted: 09/24/2021] [Indexed: 06/14/2023]
Abstract
Cryopyrin-associated periodic syndrome (CAPS) is a rare inherited autoinflammatory disease caused by gain-of-function mutations in the NLRP3 gene, with a genotype-phenotype correlation. The clinical presentation of each mutation has been previously studied. However, very few studies have reported on the clinical characteristics and treatment effectiveness across different generations within a family with the same mutation. A detailed investigation of family members of patients with CAPS may help in the appropriate diagnosis and treatment of undiagnosed CAPS. Herein, we report a 2-year-old boy (proband), his father, and his grandmother who presented with several symptoms of CAPS, such as persistently positive inflammatory reactions and hearing impairment. All three patients had the same pathogenic mutation in the NLRP3 gene (c.1049C > T (p.Thr350Met) heterozygous mutation) and were diagnosed with CAPS. With canakinumab treatment, the laboratory data of all three patients improved, the proband and father's skin rash disappeared, and his grandmother's arthropathy improved. The proband's hearing also showed slight improvement but not in his father or grandmother. Among the various non-specific symptoms associated with CAPS, chronic ocular hyperaemia is a finding that can be easily identified by non-ophthalmologists. Diagnosis of CAPS should be considered when eye symptoms are present in a combination of hyperinflammatory response, arthropathy, or skin symptoms. Thorough family history records, physical examinations, and close collaboration between paediatricians and adult rheumatologists are important for prompt diagnosis and appropriate treatment of inherited autoinflammatory diseases.
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Affiliation(s)
- Daigo Kato
- Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Fumiya Yamaide
- Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Issei Kida
- Department of Internal Medicine, Juntendo Koshigaya Hospital, Koshigaya, Saitama, Japan
| | - Yoshinari Takasaki
- Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
| | - Noriko Sato
- Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Taiji Nakano
- Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Akiko Yamaide
- Department of Allergy and Rheumatology, Chiba Children's Hospital, Chiba, Japan
| | - Naoki Shimojo
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
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Elhani I, Hentgen V, Grateau G, Georgin-Lavialle S. Neurological manifestations in mevalonate kinase deficiency: A systematic review. Mol Genet Metab 2022; 136:85-93. [PMID: 35525811 DOI: 10.1016/j.ymgme.2022.04.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/26/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Mevalonate kinase deficiency (MKD) is a monogenic auto-inflammatory disease. Its manifestations range from partial MKD to mevalonic aciduria (MVA). All patients display a periodic fever, and MVA patients additionally exhibit severe neurological involvement. The objective of this work was to describe neurological manifestations of MKD. METHODS A systematic literature review was performed from January 1990 to January 2022. Forty-five patients from 18 case reports and five cohort studies were included in the analysis. RESULTS In cohort studies, the most-reported manifestations were headaches (41%) and fatigue (31%). Serious involvements including ataxia and developmental delay were described less than 1% of patients but 22-31% of case reports. They consistently appeared in the first years of life. Retinal dystrophy was frequently reported (31%) in case reports. Other manifestations, including uveitis, aseptic meningitis, and stroke remained rare. DISCUSSION Severe neurological manifestations are rare in MKD but are responsible for major functional disabilities. They are present at onset and never appear at follow-up of patients with mild MKD. Conversely, headaches and fatigue are frequent symptoms that should be investigated. Visual examinations should be performed on the appearance of visual symptoms. The efficacy of anti-IL-1β therapy on neurological manifestations should be further investigated.
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Affiliation(s)
- Inès Elhani
- Sorbonne University, Department of Internal Medicine, AP-HP, Hôpital Tenon, Centre de Référence des Maladies Auto-Inflammatoires et des Amyloses Inflammatoire (CEREMAIA), Paris, France; Department of Pediatrics, National Reference Center for Auto-inflammatory Diseases and Amyloidosis, CEREMAIA, Versailles Hospital, Versailles, France
| | - Véronique Hentgen
- Department of Pediatrics, National Reference Center for Auto-inflammatory Diseases and Amyloidosis, CEREMAIA, Versailles Hospital, Versailles, France
| | - Gilles Grateau
- Sorbonne University, Department of Internal Medicine, AP-HP, Hôpital Tenon, Centre de Référence des Maladies Auto-Inflammatoires et des Amyloses Inflammatoire (CEREMAIA), Paris, France
| | - Sophie Georgin-Lavialle
- Sorbonne University, Department of Internal Medicine, AP-HP, Hôpital Tenon, Centre de Référence des Maladies Auto-Inflammatoires et des Amyloses Inflammatoire (CEREMAIA), Paris, France.
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5
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Romano M, Arici ZS, Piskin D, Alehashemi S, Aletaha D, Barron K, Benseler S, Berard RA, Broderick L, Dedeoglu F, Diebold M, Durrant K, Ferguson P, Foell D, Hausmann JS, Jones OY, Kastner D, Lachmann HJ, Laxer RM, Rivera D, Ruperto N, Simon A, Twilt M, Frenkel J, Hoffman HM, de Jesus AA, Kuemmerle-Deschner JB, Ozen S, Gattorno M, Goldbach-Mansky R, Demirkaya E. The 2021 EULAR/American College of Rheumatology Points to Consider for Diagnosis, Management and Monitoring of the Interleukin-1 Mediated Autoinflammatory Diseases: Cryopyrin-Associated Periodic Syndromes, Tumour Necrosis Factor Receptor-Associated Periodic Syndrome, Mevalonate Kinase Deficiency, and Deficiency of the Interleukin-1 Receptor Antagonist. Arthritis Rheumatol 2022; 74:1102-1121. [PMID: 35621220 DOI: 10.1002/art.42139] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 03/02/2022] [Accepted: 03/02/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The interleukin-1 (IL-1) mediated systemic autoinflammatory diseases, including the cryopyrin- associated periodic syndromes (CAPS), tumour necrosis factor receptor-associated periodic syndrome (TRAPS), mevalonate kinase deficiency (MKD) and deficiency of the IL-1 receptor antagonist (DIRA), belong to a group of rare immunodysregulatory diseases that primarily present in early childhood with variable multiorgan involvement. When untreated, patients with severe clinical phenotypes have a poor prognosis, and diagnosis and management of these patients can be challenging. However, approved treatments targeting the proinflammatory cytokine IL-1 have been life changing and have significantly improved patient outcomes. OBJECTIVE To establish evidence-based recommendations for diagnosis, treatment and monitoring of patients with IL-1 mediated autoinflammatory diseases to standardise their management. METHODS A multinational, multidisciplinary task force consisting of physician experts, including rheumatologists, patients or caregivers and allied healthcare professionals, was established. Evidence synthesis, including systematic literature review and expert consensus (Delphi) via surveys, was conducted. Consensus methodology was used to formulate and vote on statements to guide optimal patient care. RESULTS The task force devised five overarching principles, 14 statements related to diagnosis, 10 on therapy, and nine focused on long-term monitoring that were evidence and/or consensus-based for patients with IL-1 mediated diseases. An outline was developed for disease-specific monitoring of inflammation-induced organ damage progression and reported treatments of CAPS, TRAPS, MKD and DIRA. CONCLUSION The 2021 EULAR/American College of Rheumatology points to consider represent state-of-the-art knowledge based on published data and expert opinion to guide diagnostic evaluation, treatment and monitoring of patients with CAPS, TRAPS, MKD and DIRA, and to standardise and improve care, quality of life and disease outcomes.
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Affiliation(s)
- Micol Romano
- University of Western Ontario, London, Ontario, Canada
| | - Z Serap Arici
- Sanliurfa Training and Research Hospital, Sanliurfa, Turkey
| | - David Piskin
- University of Western Ontario, London, Ontario, Canada
| | - Sara Alehashemi
- National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland
| | | | - Karyl Barron
- National Institute of Allergy and Immunology, NIH, Bethesda, Maryland
| | | | | | - Lori Broderick
- University of California and Rady Children's Hospital, San Diego, California
| | | | | | - Karen Durrant
- Autoinflammatory Alliance and Kaiser Foundation Hospital, San Francisco, California
| | | | - Dirk Foell
- University of Muenster, Muenster, Germany
| | - Jonathan S Hausmann
- Boston Children's Hospital and Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Olcay Y Jones
- Walter Reed National Military Medical Center, Bethesda, Maryland
| | - Daniel Kastner
- National Human Genome Research Institute, NIH, Bethesda, Maryland
| | | | - Ronald M Laxer
- The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | | | | | - Anna Simon
- Radboud University Medical Centre, Nijmegen, The Netherlands
| | | | - Joost Frenkel
- Wilhelmina Kinderziekenhuis, Utrecht, The Netherlands
| | - Hal M Hoffman
- University of California and Rady Children's Hospital, San Diego, California
| | - Adriana A de Jesus
- National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland
| | | | - Seza Ozen
- Hacettepe University, Ankara, Turkey
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6
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Romano M, Arici ZS, Piskin D, Alehashemi S, Aletaha D, Barron KS, Benseler S, Berard R, Broderick L, Dedeoglu F, Diebold M, Durrant KL, Ferguson P, Foell D, Hausmann J, Jones OY, Kastner DL, Lachmann HJ, Laxer RM, Rivera D, Ruperto N, Simon A, Twilt M, Frenkel J, Hoffman H, de Jesus AA, Kuemmerle-Deschner JB, Ozen S, Gattorno M, Goldbach-Mansky R, Demirkaya E. The 2021 EULAR/American College of Rheumatology points to consider for diagnosis, management and monitoring of the interleukin-1 mediated autoinflammatory diseases: cryopyrin-associated periodic syndromes, tumour necrosis factor receptor-associated periodic syndrome, mevalonate kinase deficiency, and deficiency of the interleukin-1 receptor antagonist. Ann Rheum Dis 2022; 81:907-921. [PMID: 35623638 DOI: 10.1136/annrheumdis-2021-221801] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 03/02/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND The interleukin-1 (IL-1) mediated systemic autoinflammatory diseases, including the cryopyrin-associated periodic syndromes (CAPS), tumour necrosis factor receptor-associated periodic syndrome (TRAPS), mevalonate kinase deficiency (MKD) and deficiency of the IL-1 receptor antagonist (DIRA), belong to a group of rare immunodysregulatory diseases that primarily present in early childhood with variable multiorgan involvement. When untreated, patients with severe clinical phenotypes have a poor prognosis, and diagnosis and management of these patients can be challenging. However, approved treatments targeting the proinflammatory cytokine IL-1 have been life changing and have significantly improved patient outcomes. OBJECTIVE To establish evidence-based recommendations for diagnosis, treatment and monitoring of patients with IL-1 mediated autoinflammatory diseases to standardise their management. METHODS A multinational, multidisciplinary task force consisting of physician experts, including rheumatologists, patients or caregivers and allied healthcare professionals, was established. Evidence synthesis, including systematic literature review and expert consensus (Delphi) via surveys, was conducted. Consensus methodology was used to formulate and vote on statements to guide optimal patient care. RESULTS The task force devised five overarching principles, 14 statements related to diagnosis, 10 on therapy, and nine focused on long-term monitoring that were evidence and/or consensus-based for patients with IL-1 mediated diseases. An outline was developed for disease-specific monitoring of inflammation-induced organ damage progression and reported treatments of CAPS, TRAPS, MKD and DIRA. CONCLUSION The 2021 EULAR/American College of Rheumatology points to consider represent state-of-the-art knowledge based on published data and expert opinion to guide diagnostic evaluation, treatment and monitoring of patients with CAPS, TRAPS, MKD and DIRA, and to standardise and improve care, quality of life and disease outcomes.
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Affiliation(s)
- Micol Romano
- Department of Pediatrics, Division of Pediatric Rheumatology, Behcet and Autoinflammatory Disease Center, Western University, London, Ontario, Canada
| | - Z Serap Arici
- Department of Pediatric Rheumatology, Sanliurfa Mehmet Akif Inan Training and Research Hospital, Sanliurfa, Sanliurfa, Turkey
| | - David Piskin
- Lawson Health Research Institute and Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
| | - Sara Alehashemi
- Translational Autoinflammatory Diseases Section (TADS), Laboratory of Clinical Immunology and Microbiology (LCIM), NIAID, NIH, Bethesda, Maryland, USA
| | - Daniel Aletaha
- Division of Rheumatology, Medical University of Vienna, Wien, Austria
| | - Karyl S Barron
- Division of Intramural Research, National Institute of Allergy and Immunology, NIH, Bethesda, Maryland, USA
| | - Susanne Benseler
- Division of Rheumatology, Department of Pediatrics, Alberta Children's Hospital, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Roberta Berard
- Division of Pediatric Rheumatology, Department of Paediatrics, Schulich School of Medicine&Dentistry, Western University, London, Ontario, Canada
| | - Lori Broderick
- Division of Pediatric Allergy, Immunology, and Rheumatology, University of California and Rady Children's Hospital, San Diego, California, USA
| | - Fatma Dedeoglu
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Michelle Diebold
- Division of Pediatric Rheumatology, Department of Paediatrics, LHSC Children's Hospital, London, Ontario, Canada
| | | | - Polly Ferguson
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Dirk Foell
- Department of Pediatric Rheumatology and Immunology, University of Muenster, Muenster, Germany
| | - Jonathan Hausmann
- Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Olcay Y Jones
- Department of Pediatrics, Walter Reed National Military Medical Center (WRNMMC), Bethesda, Maryland, USA
| | - Daniel L Kastner
- Division of Intramural Research, National Institute of Allergy and Immunology, NIH, Bethesda, Maryland, USA
| | | | - Ronald M Laxer
- Division of Rheumatology, University of Toronto, Toronto, Ontario, Canada
| | - Dorelia Rivera
- Autoinflammatory Alliance, San Francisco, California, USA
| | - Nicolino Ruperto
- IRCCS Istituto Giannina Gaslini, UOSID Centro Trial, Genova, Italy
| | - Anna Simon
- Department of General Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Marinka Twilt
- Division of Rheumatology, Department of Pediatrics, Alberta Children's Hospital, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Joost Frenkel
- Department of Pediatrics, Wilhelmina Kinderziekenhuis Polikliniek Algemene Kindergeneeskunde, Utrecht, Utrecht, The Netherlands
| | - Hal Hoffman
- Division of Pediatric Allergy, Immunology, and Rheumatology, University of California at San Diego, San Diego, California, USA
| | - Adriana A de Jesus
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, USA
| | | | - Seza Ozen
- Department of Pediatric Rheumatology, Hacettepe University, Ankara, Turkey
| | - Marco Gattorno
- UOSD Centro Malattie Autoinfiammatorie e Immunodeficienze, IRCCS Istituto Giannina Gaslini, Genoa, Italy.,Clinica Pediatrica e Reumatologia, IRCCS Istituto Giannina Gaslini
| | - Raphaela Goldbach-Mansky
- Translational Autoinflammatory Diseases Section (TADS), National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Erkan Demirkaya
- Division of Paediatric Rheumatology, Department of Paediatrics, Behcet and Autoinflammatory Disease Center and Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
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7
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Chow AJ, Iverson R, Lamoureux M, Tingley K, Jordan I, Pallone N, Smith M, Al-Baldawi Z, Chakraborty P, Brehaut J, Chan A, Cohen E, Dyack S, Gillis LJ, Goobie S, Graham ID, Greenberg CR, Grimshaw JM, Hayeems RZ, Jain-Ghai S, Jolly A, Khangura S, MacKenzie JJ, Major N, Mitchell JJ, Nicholls SG, Pender A, Potter M, Prasad C, Prosser LA, Schulze A, Siriwardena K, Sparkes R, Speechley K, Stockler S, Taljaard M, Teitelbaum M, Trakadis Y, van Karnebeek C, Walia JS, Wilson BJ, Wilson K, Potter BK. Families' healthcare experiences for children with inherited metabolic diseases: protocol for a mixed methods cohort study. BMJ Open 2022; 12:e055664. [PMID: 35193919 PMCID: PMC8867352 DOI: 10.1136/bmjopen-2021-055664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION Children with inherited metabolic diseases (IMDs) often have complex and intensive healthcare needs and their families face challenges in receiving high-quality, family centred health services. Improvement in care requires complex interventions involving multiple components and stakeholders, customised to specific care contexts. This study aims to comprehensively understand the healthcare experiences of children with IMDs and their families across Canada. METHODS AND ANALYSIS A two-stage explanatory sequential mixed methods design will be used. Stage 1: quantitative data on healthcare networks and encounter experiences will be collected from 100 parent/guardians through a care map, 2 baseline questionnaires and 17 weekly diaries over 5-7 months. Care networks will be analysed using social network analysis. Relationships between demographic or clinical variables and ratings of healthcare experiences across a range of family centred care dimensions will be analysed using generalised linear regression. Other quantitative data related to family experiences and healthcare experiences will be summarised descriptively. Ongoing analysis of quantitative data and purposive, maximum variation sampling will inform sample selection for stage 2: a subset of stage 1 participants will participate in one-on-one videoconference interviews to elaborate on the quantitative data regarding care networks and healthcare experiences. Interview data will be analysed thematically. Qualitative and quantitative data will be merged during analysis to arrive at an enhanced understanding of care experiences. Quantitative and qualitative data will be combined and presented narratively using a weaving approach (jointly on a theme-by-theme basis) and visually in a side-by-side joint display. ETHICS AND DISSEMINATION The study protocol and procedures were approved by the Children's Hospital of Eastern Ontario's Research Ethics Board, the University of Ottawa Research Ethics Board and the research ethics boards of each participating study centre. Findings will be published in peer-reviewed journals and presented at scientific conferences.
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Affiliation(s)
- Andrea J Chow
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Ryan Iverson
- Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | | | - Kylie Tingley
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Nicole Pallone
- Patient Partner, Canadian PKU & Allied Disorders Inc, Toronto, Ontario, Canada
| | - Maureen Smith
- Patient Partner, Canadian Organization for Rare Disorders, Toronto, Ontario, Canada
| | - Zobaida Al-Baldawi
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Pranesh Chakraborty
- Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
- Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
| | - Jamie Brehaut
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Alicia Chan
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
| | - Eyal Cohen
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Pediatric Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sarah Dyack
- Division of Medical Genetics, Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Lisa Jane Gillis
- Department of Medicine, Johns Hopkins All Children's Hospital, St Petersburg, Florida, USA
| | - Sharan Goobie
- Division of Medical Genetics, Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Ian D Graham
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Cheryl R Greenberg
- Rady Faculty of Health Sciences, Max Rady College of Medicine, Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
- Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Jeremy M Grimshaw
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Robin Z Hayeems
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
| | - Shailly Jain-Ghai
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
| | - Ann Jolly
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Contagion Consulting Group, Ottawa, Ontario, Canada
| | - Sara Khangura
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Jennifer J MacKenzie
- Hamilton Health Sciences, McMaster Children's Hospital, Hamilton, Ontario, Canada
| | - Nathalie Major
- Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
- Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
| | - John J Mitchell
- Division of Pediatric Endocrinology, Department of Pediatrics, Montreal Children's Hospital, Montreal, Quebec, Canada
| | - Stuart G Nicholls
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Ottawa Methods Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Amy Pender
- Hamilton Health Sciences, McMaster Children's Hospital, Hamilton, Ontario, Canada
| | - Murray Potter
- Hamilton Health Sciences, McMaster Children's Hospital, Hamilton, Ontario, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Chitra Prasad
- Department of Pediatrics, Western University, London, Ontario, Canada
| | - Lisa A Prosser
- Department of Pediatrics, Susan B. Meister Child Health Evaluation and Research Center, University of Michigan, Ann Arbor, Michigan, USA
| | - Andreas Schulze
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
- Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Komudi Siriwardena
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
| | - Rebecca Sparkes
- Departments of Medical Genetics and Pediatrics, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Kathy Speechley
- Department of Pediatrics, Western University, London, Ontario, Canada
| | - Sylvia Stockler
- Department of Pediatrics, BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Monica Taljaard
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Mari Teitelbaum
- Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Yannis Trakadis
- Department of Specialized Medicine, Division of Medical Genetics, McGill University Health Centre, Montreal, Quebec, Canada
| | - Clara van Karnebeek
- Department of Pediatrics, Radboud University Medical Center, Nijmegen, Gelderland, The Netherlands
- Department of Pediatrics, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Jagdeep S Walia
- Medical Genetics, Department of Pediatrics, Kingston Health Sciences Centre, Kingston, Ontario, Canada
- Department of Pediatrics, Queen's University, Kingston, Ontario, Canada
| | - Brenda J Wilson
- Faculty of Medicine Division of Community Health and Humanities, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Kumanan Wilson
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Bruyere Research Institute, Ottawa, Ontario, Canada
| | - Beth K Potter
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
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Lin WW, Lu YC, Huang BC, Chuang CH, Cheng YA, Chen IJ, Liu HJ, Ho KW, Liao TY, Liu ES, Wu TY, Chang LS, Hong ST, Cheng TL. Selective activation of pro-anti-IL-1β antibody enhances specificity for autoinflammatory disorder therapy. Sci Rep 2021; 11:14846. [PMID: 34290297 PMCID: PMC8295355 DOI: 10.1038/s41598-021-94298-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 07/07/2021] [Indexed: 12/26/2022] Open
Abstract
Canakinumab is a fully human monoclonal antibody that specifically neutralizes human interleukin (IL)-1β and has been approved by the US Food and Drug Administration for treating different types of autoinflammatory disorders such as cryopyrin-associated periodic syndrome, tumor necrosis factor receptor-associated periodic syndrome and systemic juvenile idiopathic arthritis. However, long-term systemic neutralization of IL-1β by Canakinumab may cause severe adverse events such as serious upper respiratory tract infections and inflammation, thereby decreasing the quality of life of patients. Here, we used an IgG1 hinge as an Ab lock to cover the IL-1β-binding site of Canakinumab by linking with matrix metalloprotease 9 (MMP-9) substrate to generate pro-Canakinumab that can be specifically activated in the inflamed regions in autoinflammatory diseases to enhance the selectivity and safety of treatment. The Ab lock significantly inhibited the IL-1β-binding by 68-fold compared with Canakinumab, and MMP-9 completely restored the IL-1β neutralizing ability of pro-Canakinumab within 60 min and blocked IL-1β-downstream signaling and IL-1β-regulated genes (i.e., IL-6). It is expected that MMP-9 cleavable and efficient Ab lock will be able to significantly enhance the selective reaction of Canakinumab at the disease site and reduce the on-target toxicities of Canakinumab during systemic circulation, thereby showing potential for development to improve the safety and quality of life of patients with autoinflammatory disorders in the future.
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Affiliation(s)
- Wen-Wei Lin
- Department of Laboratory Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Laboratory Medicine, Post Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yun-Chi Lu
- Department of Biomedical and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Bo-Cheng Huang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chih-Hung Chuang
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-An Cheng
- Department of Biomedical and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I-Ju Chen
- Department of Biomedical and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hui-Ju Liu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan
| | - Kai-Wen Ho
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan
| | - Tzu-Yi Liao
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan
| | - En-Shuo Liu
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ting-Yi Wu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Shih-Ting Hong
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.
| | - Tian-Lu Cheng
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan. .,Department of Biomedical and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan. .,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. .,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan.
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9
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Validation of the Hungarian version of the CarerQol instrument in informal caregivers: results from a cross-sectional survey among the general population in Hungary. Qual Life Res 2020; 30:629-641. [PMID: 33037979 PMCID: PMC7886830 DOI: 10.1007/s11136-020-02662-8] [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] [Accepted: 09/29/2020] [Indexed: 12/12/2022]
Abstract
Purpose The CarerQol instrument has been designed and validated as an instrument able to measure both the positive and the negative impacts of caregiving on the quality of life of informal caregivers (CarerQol-7D), as well as their general happiness (CarerQol-VAS). The aim of this study was to assess the construct validity of the CarerQol in the Hungarian context. Methods The CarerQol was translated into Hungarian. Subsequently, in a cross-sectional online survey, representative for the general Hungarian population (N = 1000), informal caregivers were identified (N = 149, female 51.2%, mean age 53.2). Clinical, convergent and discriminant validity of the CarerQol were evaluated in relation to the caregivers’ and care recipients’ EQ-5D-5L health status, and caregiving situation characteristics. Results Average CarerQol-7D and CarerQol-VAS scores were 76.0 (SD 16.2) and 6.8 (SD 2.3), respectively. CarerQol-7D and CarerQol-VAS scores were significantly correlated with caregiving time (r = − 0.257; − 0.212), caregivers’ EQ-5D-5L scores (r = 0.453; 0.326) and the CarerQol-7D also with care recipients’ EQ-5D-5L scores (r = 0.247). CarerQol-7D scores differed significantly with relevant caregiving characteristics (e.g. nature and severity of care recipients’ health status, sharing household) and both the CarerQol-7D and CarerQol-VAS with the overall care experience. Conclusion Our findings confirmed the validity of the Hungarian language version of the CarerQol and support the cross-cultural validity of the instrument. CarerQol-7D scores performed better in distinguishing caregiving situation characteristics than the general happiness measure CarerQol-VAS. Care recipients’ health status was only weakly associated with informal caregivers’ care-related quality of life and happiness. Caregivers’ own health and caregiving circumstances were more strongly associated with these scores. Electronic supplementary material The online version of this article (10.1007/s11136-020-02662-8) contains supplementary material, which is available to authorized users.
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10
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Ogawa B, Aoki M, Ohnishi H, Ohashi T, Hayashi H, Kuze B, Ito Y. The Long-Term Efficacy of Cochlear Implantation for Hearing Loss in Muckel-Wells Syndrome. J Int Adv Otol 2019; 15:454-458. [PMID: 31846928 DOI: 10.5152/iao.2019.6871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Muckle-Wells syndrome (MWS), a subclass of cryopyrin-associated periodic syndrome (CAPS), sometimes includes complications of bilateral progressive sensorineural hearing loss. A 48-year-old woman had been diagnosed with pediatric rheumatic arthritis at aged 6 years; however, systematic therapy with prednisolone and methotrexate showed limited efficacy for her general fatigue and arthritic pain, and it never improved the hearing level. She underwent a cochlear implant surgery for progressive profound bilateral hearing loss. After 7 years of cochlear implant surgery, she was diagnosed with MWS by genetic tests. Interleukin (IL)-1β monoclonal antibody therapy (canakinumab) improved general fatigue and arthritic pain but showed no effect on cochlear symptoms. Owing to successful cochlear implant surgery, she reacquired the hearing and communication function while being able to understand over 90% of monosyllables and words in the sound field of her daily life at 65 dB SPL for the next 13 years of her life. This suggests that peripheral cochlear damage induced by chronic inflammation contributes to the sensorineural hearing loss in cases with MWS, and that cochlear implantation can provide long-term hearing efficacy for patients with MWS with irreversible profound hearing loss.
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Affiliation(s)
- Bakushi Ogawa
- Department of Otolaryngology, Gifu University, Gifu, Japan
| | - Mitsuhiro Aoki
- Department of Otolaryngology, Gifu University, Gifu, Japan
| | | | | | | | - Bunya Kuze
- Department of Otolaryngology, Gifu University, Gifu, Japan
| | - Yatsuji Ito
- Department of Otolaryngology, Gifu University, Gifu, Japan
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