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. 2020 Feb;34(2):137-157.
doi: 10.1080/02687038.2019.1643003.

RELEASE: a protocol for a systematic review based, individual participant data, meta- and network meta-analysis, of complex speech-language therapy interventions for stroke-related aphasia

Marian C Brady  1 Myzoon Ali  1 Kathryn VandenBerg  1 Linda J Williams  2 Louise R Williams  1 Masahiro Abo  3 Frank Becker  4 Audrey Bowen  5 Caitlin Brandenburg  6 Caterina Breitenstein  7 Stefanie Bruehl  8 David A Copland  6 Tamara B Cranfill  9 Marie di Pietro-Bachmann  10 Pamela Enderby  11 Joanne Fillingham  12 Federica Lucia Galli  13 Marialuisa Gandolfi  14 Bertrand Glize  15 Erin Godecke  16 Neil Hawkins  17 Katerina Hilari  18 Jacqueline Hinckley  19 Simon Horton  20 David Howard  21 Petra Jaecks  22 Elizabeth Jefferies  23 Luis M T Jesus  24 Maria Kambanaros  25 Eun Kyoung Kang  26 Eman M Khedr  27 Anthony Pak-Hin Kong  28 Tarja Kukkonen  29 Marina Laganaro  30 Matthew A Lambon Ralph  31 Ann Charlotte Laska  32 Béatrice Leemann  33 Alexander P Leff  34 Roxele R Lima  35 Antje Lorenz  36 Brian MacWhinney  37 Rebecca Shisler Marshall  38 Flavia Mattioli  39 Ilknur Maviş  40 Marcus Meinzer  41 Reza Nilipour  42 Enrique Noé  43 Nam-Jong Paik  44 Rebecca Palmer  11 Ilias Papathanasiou  45 Brigida F Patricio  46 Isabel Pavão Martins  47 Cathy Price  48 Tatjana Prizl Jakovac  49 Elizabeth Rochon  50 Miranda L Rose  51 Charlotte Rosso  52 Ilona Rubi-Fessen  53 Marina B Ruiter  54 Claerwen Snell  55 Benjamin Stahl  56 Jerzy P Szaflarski  57 Shirley A Thomas  58 Mieke van de Sandt-Koenderman  59 Ineke van der Meulen  59 Evy Visch-Brink  60 Linda Worrall  6 Heather Harris Wright  61
Affiliations

RELEASE: a protocol for a systematic review based, individual participant data, meta- and network meta-analysis, of complex speech-language therapy interventions for stroke-related aphasia

Marian C Brady et al. Aphasiology. 2020 Feb.

Abstract

Background: Speech and language therapy (SLT) benefits people with aphasia following stroke. Group level summary statistics from randomised controlled trials hinder exploration of highly complex SLT interventions and a clinically relevant heterogeneous population. Creating a database of individual participant data (IPD) for people with aphasia aims to allow exploration of individual and therapy-related predictors of recovery and prognosis.

Aim: To explore the contribution that individual participant characteristics (including stroke and aphasia profiles) and SLT intervention components make to language recovery following stroke.

Methods and procedures: We will identify eligible IPD datasets (including randomised controlled trials, non-randomised comparison studies, observational studies and registries) and invite their contribution to the database. Where possible, we will use meta- and network meta-analysis to explore language performance after stroke and predictors of recovery as it relates to participants who had no SLT, historical SLT or SLT in the primary research study. We will also examine the components of effective SLT interventions.

Outcomes and results: Outcomes include changes in measures of functional communication, overall severity of language impairment, auditory comprehension, spoken language (including naming), reading and writing from baseline. Data captured on assessment tools will be collated and transformed to a standardised measure for each of the outcome domains.

Conclusion: Our planned systematic-review-based IPD meta- and network meta-analysis is a large scale, international, multidisciplinary and methodologically complex endeavour. It will enable hypotheses to be generated and tested to optimise and inform development of interventions for people with aphasia after stroke.

Systematic review registration: The protocol has been registered at the International Prospective Register of Systematic Reviews (PROSPERO; registration number: CRD42018110947).

Keywords: IPD; Stroke; aphasia; complex intervention; meta-analysis.

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