Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-Analysis

Introduction: Melodic intonation therapy (MIT) is one of the most studied speech and language therapy (SLT) approaches for patients with non-fluent aphasia, although the methodological quality of the studies has been rated as low in previous reviews. The aim of this study is to update current eviden...

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Main Authors: Ana Haro-Martínez, Carmen M. Pérez-Araujo, Juan M. Sanchez-Caro, Blanca Fuentes, Exuperio Díez-Tejedor
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-08-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2021.700115/full
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author Ana Haro-Martínez
Carmen M. Pérez-Araujo
Juan M. Sanchez-Caro
Blanca Fuentes
Exuperio Díez-Tejedor
author_facet Ana Haro-Martínez
Carmen M. Pérez-Araujo
Juan M. Sanchez-Caro
Blanca Fuentes
Exuperio Díez-Tejedor
author_sort Ana Haro-Martínez
collection DOAJ
description Introduction: Melodic intonation therapy (MIT) is one of the most studied speech and language therapy (SLT) approaches for patients with non-fluent aphasia, although the methodological quality of the studies has been rated as low in previous reviews. The aim of this study is to update current evidence on the possible efficacy of MIT for the treatment of non-fluent post-stroke aphasia.Methods: A systematic review and meta-analysis. We selected randomized clinical trials (RCT) that included adult patients over 18 years of age with non-fluent post-stroke aphasia, whose intervention was MIT vs. no therapy or other therapy. We excluded non-RCT studies, mixed populations including patients with aphasia of non-stroke etiology, studies with no availability of post-stroke aphasia-specific data, and incomplete studies. Three sections of communicative ability were analyzed as outcomes: functional communication, expressive language (naming and repetition), and comprehension.Results: We identified a total of four eligible RCTs involving 94 patients. Despite the heterogeneity in the psychometric tests employed among the trials, a significant effect of MIT on functional communication (evaluated by the Communication Activity Log) was found (SMD 1.47; 95% CI 0.39–2.56). In addition, a positive effect of MIT on expressive language (repetition) was found (SMD 0.45; 95% CI 0.01–0.90). No significant effects on comprehension measurements were found, despite a lack of significant statistical heterogeneity.Conclusion: This systematic review and meta-analysis shows a significant effect of MIT on improving functional communication and on repetition tasks. Future larger RCT specifically addressing those outcomes should provide the definite evidence on the efficacy of MIT on post-stroke aphasia recovery.Systematic Review Registration:PROSPERO-URL https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020144604.
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spelling doaj.art-5d3154e8fc0a4bcd81c7d6ddddcc608e2022-12-21T18:32:28ZengFrontiers Media S.A.Frontiers in Neurology1664-22952021-08-011210.3389/fneur.2021.700115700115Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-AnalysisAna Haro-Martínez0Carmen M. Pérez-Araujo1Juan M. Sanchez-Caro2Blanca Fuentes3Exuperio Díez-Tejedor4Doctoral Programme, Department of Medicine, Universidad Autónoma de Madrid, Madrid, SpainBrain Injury and Stroke Unit, Hospital Hestia Madrid, Madrid, SpainDepartment of Medicine, Department of Neurology and Stroke Center, Hospital Universitario La Paz, Universidad Autónoma de Madrid, IdiPAZ Health Research Institute, Madrid, SpainDepartment of Medicine, Department of Neurology and Stroke Center, Hospital Universitario La Paz, Universidad Autónoma de Madrid, IdiPAZ Health Research Institute, Madrid, SpainDepartment of Medicine, Department of Neurology and Stroke Center, Hospital Universitario La Paz, Universidad Autónoma de Madrid, IdiPAZ Health Research Institute, Madrid, SpainIntroduction: Melodic intonation therapy (MIT) is one of the most studied speech and language therapy (SLT) approaches for patients with non-fluent aphasia, although the methodological quality of the studies has been rated as low in previous reviews. The aim of this study is to update current evidence on the possible efficacy of MIT for the treatment of non-fluent post-stroke aphasia.Methods: A systematic review and meta-analysis. We selected randomized clinical trials (RCT) that included adult patients over 18 years of age with non-fluent post-stroke aphasia, whose intervention was MIT vs. no therapy or other therapy. We excluded non-RCT studies, mixed populations including patients with aphasia of non-stroke etiology, studies with no availability of post-stroke aphasia-specific data, and incomplete studies. Three sections of communicative ability were analyzed as outcomes: functional communication, expressive language (naming and repetition), and comprehension.Results: We identified a total of four eligible RCTs involving 94 patients. Despite the heterogeneity in the psychometric tests employed among the trials, a significant effect of MIT on functional communication (evaluated by the Communication Activity Log) was found (SMD 1.47; 95% CI 0.39–2.56). In addition, a positive effect of MIT on expressive language (repetition) was found (SMD 0.45; 95% CI 0.01–0.90). No significant effects on comprehension measurements were found, despite a lack of significant statistical heterogeneity.Conclusion: This systematic review and meta-analysis shows a significant effect of MIT on improving functional communication and on repetition tasks. Future larger RCT specifically addressing those outcomes should provide the definite evidence on the efficacy of MIT on post-stroke aphasia recovery.Systematic Review Registration:PROSPERO-URL https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020144604.https://www.frontiersin.org/articles/10.3389/fneur.2021.700115/fullpost-stroke aphasiaspeech and language therapymelodic intonation therapymeta-analysissystematic review
spellingShingle Ana Haro-Martínez
Carmen M. Pérez-Araujo
Juan M. Sanchez-Caro
Blanca Fuentes
Exuperio Díez-Tejedor
Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-Analysis
Frontiers in Neurology
post-stroke aphasia
speech and language therapy
melodic intonation therapy
meta-analysis
systematic review
title Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-Analysis
title_full Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-Analysis
title_fullStr Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-Analysis
title_full_unstemmed Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-Analysis
title_short Melodic Intonation Therapy for Post-stroke Non-fluent Aphasia: Systematic Review and Meta-Analysis
title_sort melodic intonation therapy for post stroke non fluent aphasia systematic review and meta analysis
topic post-stroke aphasia
speech and language therapy
melodic intonation therapy
meta-analysis
systematic review
url https://www.frontiersin.org/articles/10.3389/fneur.2021.700115/full
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