Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi Consensus

Introduction. AADCd is an ultrarare, underdiagnosed neurometabolic disorder for which a screening test (3-OMD dosing on dried blood spot (DBS)) and targeted gene therapy (authorized in the EU and the UK) are available. Therefore, it is mandatory to raise awareness of presenting symptoms and signs am...

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Main Authors: Carlotta Spagnoli, Roberta Battini, Filippo Manti, Duccio Maria Cordelli, Andrea Pession, Melissa Bellini, Andrea Bordugo, Gaetano Cantalupo, Antonella Riva, Pasquale Striano, Marco Spada, Francesco Porta, Carlo Fusco
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:Behavioural Neurology
Online Access:http://dx.doi.org/10.1155/2024/1023861
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author Carlotta Spagnoli
Roberta Battini
Filippo Manti
Duccio Maria Cordelli
Andrea Pession
Melissa Bellini
Andrea Bordugo
Gaetano Cantalupo
Antonella Riva
Pasquale Striano
Marco Spada
Francesco Porta
Carlo Fusco
author_facet Carlotta Spagnoli
Roberta Battini
Filippo Manti
Duccio Maria Cordelli
Andrea Pession
Melissa Bellini
Andrea Bordugo
Gaetano Cantalupo
Antonella Riva
Pasquale Striano
Marco Spada
Francesco Porta
Carlo Fusco
author_sort Carlotta Spagnoli
collection DOAJ
description Introduction. AADCd is an ultrarare, underdiagnosed neurometabolic disorder for which a screening test (3-OMD dosing on dried blood spot (DBS)) and targeted gene therapy (authorized in the EU and the UK) are available. Therefore, it is mandatory to raise awareness of presenting symptoms and signs among practitioners. Delivering scientifically sound information to promote screening of patients with the correct cluster of symptoms and signs would be critical. Materials and Methods. In light of the lack of sound evidence on this issue, expert opinion level of evidence was elicited with the Delphi method. Fourteen steering committee members invited a panel of 29 Italian experts to express their opinions on a series of crucial but controversial topics related to using 3-OMD DBS as a screening method in AADCd. Clusters of symptoms and signs were divided into typical or atypical, depending on age groups. Inclusion in newborn screening programs and the usefulness of a clinical score were investigated. A five-point Likert scale was used to rate the level of priority attributed to each statement. Results. The following statements reached the highest priority: testing pediatric patients with hypotonia, developmental delay, movement disorders, and oculogyric crises; inclusion of 3-OMD dosing on DBS in neonatal screening programs; development of a clinical score to support patients’ selection for 3-OMD screening; among atypical phenotypes based on clinical characteristics of Italian patients: testing patients with intellectual disability and parkinsonism-dystonia. Discussion. Clusters of symptoms and signs can be used to prioritize testing with 3-OMD DBS. A clinical score was rated as highly relevant for the patient’s selection. The inclusion of 3-OMD dosing in newborn screening programs was advocated with high clinical priority.
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spelling doaj-art-14bb14f2996c4f5da9b495ff7750dc882025-02-02T23:03:23ZengWileyBehavioural Neurology1875-85842024-01-01202410.1155/2024/1023861Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi ConsensusCarlotta Spagnoli0Roberta Battini1Filippo Manti2Duccio Maria Cordelli3Andrea Pession4Melissa Bellini5Andrea Bordugo6Gaetano Cantalupo7Antonella Riva8Pasquale Striano9Marco Spada10Francesco Porta11Carlo Fusco12Child Neurology and Psychiatry UnitDepartment of Developmental NeuroscienceChild Neuropsychiatric UnitIRCCS Istituto delle Scienze Neurologiche di BolognaDepartment of Medical and Surgical SciencesPediatrics and Neonatology UnitInherited Metabolic Diseases Unit and Regional Centre for Newborn ScreeningChild Neuropsychiatry Unit and Center for Research on Epilepsy in Pediatric Age (CREP)Pediatric Neurology and Muscular Diseases UnitPediatric Neurology and Muscular Diseases UnitDepartment of PediatricsDepartment of PediatricsChild Neurology and Psychiatry UnitIntroduction. AADCd is an ultrarare, underdiagnosed neurometabolic disorder for which a screening test (3-OMD dosing on dried blood spot (DBS)) and targeted gene therapy (authorized in the EU and the UK) are available. Therefore, it is mandatory to raise awareness of presenting symptoms and signs among practitioners. Delivering scientifically sound information to promote screening of patients with the correct cluster of symptoms and signs would be critical. Materials and Methods. In light of the lack of sound evidence on this issue, expert opinion level of evidence was elicited with the Delphi method. Fourteen steering committee members invited a panel of 29 Italian experts to express their opinions on a series of crucial but controversial topics related to using 3-OMD DBS as a screening method in AADCd. Clusters of symptoms and signs were divided into typical or atypical, depending on age groups. Inclusion in newborn screening programs and the usefulness of a clinical score were investigated. A five-point Likert scale was used to rate the level of priority attributed to each statement. Results. The following statements reached the highest priority: testing pediatric patients with hypotonia, developmental delay, movement disorders, and oculogyric crises; inclusion of 3-OMD dosing on DBS in neonatal screening programs; development of a clinical score to support patients’ selection for 3-OMD screening; among atypical phenotypes based on clinical characteristics of Italian patients: testing patients with intellectual disability and parkinsonism-dystonia. Discussion. Clusters of symptoms and signs can be used to prioritize testing with 3-OMD DBS. A clinical score was rated as highly relevant for the patient’s selection. The inclusion of 3-OMD dosing in newborn screening programs was advocated with high clinical priority.http://dx.doi.org/10.1155/2024/1023861
spellingShingle Carlotta Spagnoli
Roberta Battini
Filippo Manti
Duccio Maria Cordelli
Andrea Pession
Melissa Bellini
Andrea Bordugo
Gaetano Cantalupo
Antonella Riva
Pasquale Striano
Marco Spada
Francesco Porta
Carlo Fusco
Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi Consensus
Behavioural Neurology
title Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi Consensus
title_full Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi Consensus
title_fullStr Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi Consensus
title_full_unstemmed Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi Consensus
title_short Identification of Potential Clusters of Signs and Symptoms to Prioritize Patients’ Eligibility for AADCd Screening by 3-OMD Testing: An Italian Delphi Consensus
title_sort identification of potential clusters of signs and symptoms to prioritize patients eligibility for aadcd screening by 3 omd testing an italian delphi consensus
url http://dx.doi.org/10.1155/2024/1023861
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