Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacy

Abstract Friedreich's ataxia is a rare degenerative neuromuscular disorder, caused by a homozygous GAA triplet repeat expansion in the frataxin (FXN) gene, with a broad clinical phenotype characterized by progressive gait and limb ataxia, dysarthria, and loss of lower limb reflexes; cardiac inv...

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Main Authors: Sandra Mastroianno, Michele Germano, Angela Maggio, Raimondo Massaro, Domenico Rosario Potenza, Aldo Russo, Massimo Carella, Giuseppe Di Stolfo
Format: Article
Language:English
Published: Wiley 2021-07-01
Series:Annals of Noninvasive Electrocardiology
Subjects:
Online Access:https://doi.org/10.1111/anec.12813
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author Sandra Mastroianno
Michele Germano
Angela Maggio
Raimondo Massaro
Domenico Rosario Potenza
Aldo Russo
Massimo Carella
Giuseppe Di Stolfo
author_facet Sandra Mastroianno
Michele Germano
Angela Maggio
Raimondo Massaro
Domenico Rosario Potenza
Aldo Russo
Massimo Carella
Giuseppe Di Stolfo
author_sort Sandra Mastroianno
collection DOAJ
description Abstract Friedreich's ataxia is a rare degenerative neuromuscular disorder, caused by a homozygous GAA triplet repeat expansion in the frataxin (FXN) gene, with a broad clinical phenotype characterized by progressive gait and limb ataxia, dysarthria, and loss of lower limb reflexes; cardiac involvement is represented by hypertrophic cardiomyopathy, ventricular arrhythmias, and sudden cardiac deaths. Currently, no definite therapy is available, while many drugs are under investigation; for this reasons, we need markers of short‐ and long‐term treatment efficacy acting on different tissue for trial evaluation. We describe the case of a 21‐year‐old patient affected by Friedreich's ataxia on wheel‐chair, with initial cardiac involvement and electrocardiographic features characterized by thiamine treatment‐related negative T wave and QTc variations. We discuss plausible physiopathology and potential ECG role implications as an intermediate marker of treatment response in future clinical trials considering patients affected by Friedreich's ataxia.
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spelling doaj.art-85d001a1c4cd4b0aaeb0b54ad9d82e2f2022-12-21T22:45:40ZengWileyAnnals of Noninvasive Electrocardiology1082-720X1542-474X2021-07-01264n/an/a10.1111/anec.12813Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacySandra Mastroianno0Michele Germano1Angela Maggio2Raimondo Massaro3Domenico Rosario Potenza4Aldo Russo5Massimo Carella6Giuseppe Di Stolfo7Cardiology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyChild Neuropsychiatry Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyPaediatric Oncology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyCardiology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyCardiology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyCardiology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyMedical Genetic Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyCardiology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo ItalyAbstract Friedreich's ataxia is a rare degenerative neuromuscular disorder, caused by a homozygous GAA triplet repeat expansion in the frataxin (FXN) gene, with a broad clinical phenotype characterized by progressive gait and limb ataxia, dysarthria, and loss of lower limb reflexes; cardiac involvement is represented by hypertrophic cardiomyopathy, ventricular arrhythmias, and sudden cardiac deaths. Currently, no definite therapy is available, while many drugs are under investigation; for this reasons, we need markers of short‐ and long‐term treatment efficacy acting on different tissue for trial evaluation. We describe the case of a 21‐year‐old patient affected by Friedreich's ataxia on wheel‐chair, with initial cardiac involvement and electrocardiographic features characterized by thiamine treatment‐related negative T wave and QTc variations. We discuss plausible physiopathology and potential ECG role implications as an intermediate marker of treatment response in future clinical trials considering patients affected by Friedreich's ataxia.https://doi.org/10.1111/anec.12813electrocardiogramFriedreich's ataxiatreatment
spellingShingle Sandra Mastroianno
Michele Germano
Angela Maggio
Raimondo Massaro
Domenico Rosario Potenza
Aldo Russo
Massimo Carella
Giuseppe Di Stolfo
Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacy
Annals of Noninvasive Electrocardiology
electrocardiogram
Friedreich's ataxia
treatment
title Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacy
title_full Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacy
title_fullStr Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacy
title_full_unstemmed Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacy
title_short Electrocardiogram in Friedreich's ataxia: A short‐term surrogate endpoint for treatment efficacy
title_sort electrocardiogram in friedreich s ataxia a short term surrogate endpoint for treatment efficacy
topic electrocardiogram
Friedreich's ataxia
treatment
url https://doi.org/10.1111/anec.12813
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AT raimondomassaro electrocardiograminfriedreichsataxiaashorttermsurrogateendpointfortreatmentefficacy
AT domenicorosariopotenza electrocardiograminfriedreichsataxiaashorttermsurrogateendpointfortreatmentefficacy
AT aldorusso electrocardiograminfriedreichsataxiaashorttermsurrogateendpointfortreatmentefficacy
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