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Vernon-Roberts A, Verma S, Day AS, Ho SSC. Meta-analysis: High pooled positive predictive value of the European Society of Paediatric Gastroenterology, Hepatology and Nutrition no-biopsy approach for coeliac disease testing in children. Aliment Pharmacol Ther 2024; 60:672-685. [PMID: 39044321 DOI: 10.1111/apt.18177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/29/2024] [Accepted: 07/12/2024] [Indexed: 07/25/2024]
Abstract
BACKGROUND The European Society of Paediatric Gastroenterology, Hepatology and Nutrition established guidelines in 2012 for a no-biopsy approach to diagnose coeliac disease in children. This guideline required symptoms suggestive of coeliac disease, positive human leukocyte antigen (HLA) DQ2/DQ8 haplotypes, tissue transglutaminase type-2 immunoglobulin A antibody titre at levels greater than 10 times the upper limit of normal, and positive endomysial immune-globulin A antibody test. An updated 2020 guideline excluded the need for symptoms and positive HLA. AIMS To assess the pooled positive predictive value (PPV) of the no-biopsy approach with small bowel biopsy (SBB) data as the reference standard for comparison. METHODS Database searches (October 2023) provided data that we combined using a random-effects meta-analysis to provide a pooled PPV, representing the probability that a positive test result means that an individual truly has the condition. RESULTS We included 23 studies. Study sample sizes totalled 23,769 but only 3007 children had comparative SBB. The proportion of coeliac disease confirmed by the no-biopsy approach and SBB ranged from 79.2% to 100%, with an overall pooled PPV of 97.4% (95% confidence interval 96.0, 98.6). Sensitivity analysis showed higher PPV for the criteria that included HLA (98.5% vs. 96.8%; p = 0.017). CONCLUSION Both no-biopsy criteria exhibit high PPV when compared to the reference standard. These results provide a consistent message of accuracy and feasibility to inform change and improve outcomes.
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Affiliation(s)
| | - Sanjeev Verma
- Department of Pediatrics, King George Medical University, Lucknow, Uttar Pradesh, India
| | - Andrew S Day
- Department of Paediatrics, University of Otago Christchurch, Christchurch, New Zealand
| | - Shaun S C Ho
- Department of Gastroenterology and Clinical Nutrition, The Royal Children's Hospital Melbourne, Parkville, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
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Parrinello G, Da Re M, Grizzo F, Camelliti S, Cozzi M, Marinoni F, Villalta D. Diagnostic accuracy of a novel point-of-care test for simultaneous detection of anti-transglutaminase IgA and anti-deamidated gliadin IgG antibodies. J Clin Lab Anal 2024; 38:e25003. [PMID: 38291818 PMCID: PMC10873685 DOI: 10.1002/jcla.25003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/28/2023] [Accepted: 01/01/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Point-of-care tests (POCTs) may have a role in detecting undiagnosed cases of Celiac disease (CD). We assessed the diagnostic accuracy of a novel POCT, compared with the conventional serological methods, for simultaneous anti-transglutaminase (tTG) IgA and anti-deamidated gliadin (DGP) IgG antibody detection. Furthermore, we evaluated the effect of different biological matrices (whole blood and serum) on test performance. METHODS Serum and whole blood from celiac or suspected celiac patients who underwent duodenal biopsy were assayed for the presence of anti-tTG IgA and anti-DGP IgG both with the reference standard methods (Thermo Fisher Scientific, Uppsala, Sweden) and with the POCT (PRIMA Lab SA, Balerna, Switzerland). RESULTS 266 sera (101 negative and 165 positive) and 60 whole blood samples (34 positive and 26 negative) were included in the study. POCT for anti-DGP IgG showed a sensitivity of 84.3% and a specificity of 90.1%, with positive (PPV) and negative predictive values (NPV) of 91.07% and 82.73%. POCT for anti-tTG IgA showed a sensitivity of 98.31% and a specificity of 98.02%, with a PPV and NPV of 98.31% and 98.02%. Test accuracies were 86.94% and 98.17%, respectively. The agreement of the results between the two different matrices showed a strong correlation rate: 95% for anti-DGP IgG and 100% for anti-tTG IgA. CONCLUSION The anti-tTG IgA/anti-DGP IgG-based POCT showed good diagnostic accuracy with comparable sensitivities and specificities to reference standard methods in detecting CD in symptomatic patients and could be considered as a mass screening test before referring to conventional serology.
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Affiliation(s)
| | - Mirella Da Re
- Immunology and Allergy UnitSanta Maria degli Angeli HospitalPordenoneItaly
| | - Francesca Grizzo
- Immunology and Allergy UnitSanta Maria degli Angeli HospitalPordenoneItaly
| | | | | | | | - Danilo Villalta
- Immunology and Allergy UnitSanta Maria degli Angeli HospitalPordenoneItaly
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Magazzù G, Aquilina S, Barbara C, Bondin R, Brusca I, Bugeja J, Camilleri M, Cascio D, Costa S, Cuzzupè C, Duca A, Fregapane M, Gentile V, Giuliano A, Grifò A, Grima AM, Ieni A, Li Calzi G, Maisano F, Melita G, Pallio S, Panasiti I, Pellegrino S, Romano C, Sorce S, Tabacchi ME, Taormina V, Tegolo D, Tortora A, Valenti C, Vella C, Raso G. Recognizing the Emergent and Submerged Iceberg of the Celiac Disease: ITAMA Project-Global Strategy Protocol. Pediatr Rep 2022; 14:293-311. [PMID: 35736659 PMCID: PMC9227897 DOI: 10.3390/pediatric14020037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/19/2022] [Accepted: 06/06/2022] [Indexed: 12/12/2022] Open
Abstract
Coeliac disease (CD) is frequently underdiagnosed with a consequent heavy burden in terms of morbidity and health care costs. Diagnosis of CD is based on the evaluation of symptoms and anti-transglutaminase antibodies IgA (TGA-IgA) levels, with values above a tenfold increase being the basis of the biopsy-free diagnostic approach suggested by present guidelines. This study showcased the largest screening project for CD carried out to date in school children (n=20,000) aimed at assessing the diagnostic accuracy of minimally invasive finger prick point-of-care tests (POCT) which, combined with conventional celiac serology and the aid of an artificial intelligence-based system, may eliminate the need for intestinal biopsy. Moreover, this study delves deeper into the "coeliac iceberg" in an attempt to identify people with disorders who may benefit from a gluten-free diet, even in the absence of gastrointestinal symptoms, abnormal serology and histology. This was achieved by looking for TGA-IgA mucosal deposits in duodenal biopsy. This large European multidisciplinary health project paves the way to an improved quality of life for patients by reducing the costs for diagnosis due to delayed findings of CD and to offer business opportunities in terms of diagnostic tools and support.
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Affiliation(s)
- Giuseppe Magazzù
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
- Correspondence:
| | - Samuel Aquilina
- Department of Paediatrics, Mater Dei Hospital, 2090 Msida, Malta; (S.A.); (R.B.); (A.-M.G.); (C.V.)
| | - Christopher Barbara
- Department of Pathology, Mater Dei Hospital, 2090 Msida, Malta; (C.B.); (M.C.)
| | - Ramon Bondin
- Department of Paediatrics, Mater Dei Hospital, 2090 Msida, Malta; (S.A.); (R.B.); (A.-M.G.); (C.V.)
| | - Ignazio Brusca
- Ospedale Fatebenefratelli, Buccheri La Ferla, 90123 Palermo, Italy; (I.B.); (M.F.)
| | | | - Mark Camilleri
- Department of Pathology, Mater Dei Hospital, 2090 Msida, Malta; (C.B.); (M.C.)
| | - Donato Cascio
- Dipartimento di Fisica e Chimica-“E. Segrè”, Università di Palermo, 90133 Palermo, Italy; (D.C.); (V.G.); (G.L.C.); (S.S.); (V.T.); (G.R.)
| | - Stefano Costa
- DAI Materno-Infantile, AOU Policlinico G. Martino, 98124 Messina, Italy; (S.C.); (S.P.)
| | - Chiara Cuzzupè
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
| | - Annalise Duca
- AcrossLimits Ltd., 4013 Birkirkara, Malta; (J.B.); (A.D.); (A.G.)
| | - Maria Fregapane
- Ospedale Fatebenefratelli, Buccheri La Ferla, 90123 Palermo, Italy; (I.B.); (M.F.)
| | - Vito Gentile
- Dipartimento di Fisica e Chimica-“E. Segrè”, Università di Palermo, 90133 Palermo, Italy; (D.C.); (V.G.); (G.L.C.); (S.S.); (V.T.); (G.R.)
| | - Angele Giuliano
- AcrossLimits Ltd., 4013 Birkirkara, Malta; (J.B.); (A.D.); (A.G.)
| | - Alessia Grifò
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
| | - Anne-Marie Grima
- Department of Paediatrics, Mater Dei Hospital, 2090 Msida, Malta; (S.A.); (R.B.); (A.-M.G.); (C.V.)
| | - Antonio Ieni
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
| | - Giada Li Calzi
- Dipartimento di Fisica e Chimica-“E. Segrè”, Università di Palermo, 90133 Palermo, Italy; (D.C.); (V.G.); (G.L.C.); (S.S.); (V.T.); (G.R.)
| | - Fabiana Maisano
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
| | - Giuseppinella Melita
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
| | - Socrate Pallio
- Dipartimento di Medicina Clinica e Sperimentale, Università di Messina, 98122 Messina, Italy;
| | - Ilenia Panasiti
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
| | - Salvatore Pellegrino
- DAI Materno-Infantile, AOU Policlinico G. Martino, 98124 Messina, Italy; (S.C.); (S.P.)
| | - Claudio Romano
- Dipartimento di Patologia Umana dell’Adulto e dell’Età Evolutiva “Gaetano Barresi”, Università di Messina, 98122 Messina, Italy; (C.C.); (A.G.); (A.I.); (F.M.); (G.M.); (I.P.); (C.R.)
| | - Salvatore Sorce
- Dipartimento di Fisica e Chimica-“E. Segrè”, Università di Palermo, 90133 Palermo, Italy; (D.C.); (V.G.); (G.L.C.); (S.S.); (V.T.); (G.R.)
- Facoltà di Ingegneria e Architettura, Università degli Studi di Enna “Kore”, 94100 Enna, Italy
| | - Marco Elio Tabacchi
- Dipartimento di Matematica e Informatica, Università di Palermo, 90133 Palermo, Italy; (M.E.T.); (D.T.); (C.V.)
| | - Vincenzo Taormina
- Dipartimento di Fisica e Chimica-“E. Segrè”, Università di Palermo, 90133 Palermo, Italy; (D.C.); (V.G.); (G.L.C.); (S.S.); (V.T.); (G.R.)
| | - Domenico Tegolo
- Dipartimento di Matematica e Informatica, Università di Palermo, 90133 Palermo, Italy; (M.E.T.); (D.T.); (C.V.)
| | - Andrea Tortora
- DAI Scienze Mediche, AOU Policlinico G. Martino, 98124 Messina, Italy;
| | - Cesare Valenti
- Dipartimento di Matematica e Informatica, Università di Palermo, 90133 Palermo, Italy; (M.E.T.); (D.T.); (C.V.)
| | - Cecil Vella
- Department of Paediatrics, Mater Dei Hospital, 2090 Msida, Malta; (S.A.); (R.B.); (A.-M.G.); (C.V.)
| | - Giuseppe Raso
- Dipartimento di Fisica e Chimica-“E. Segrè”, Università di Palermo, 90133 Palermo, Italy; (D.C.); (V.G.); (G.L.C.); (S.S.); (V.T.); (G.R.)
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