Abstract
Background
Constraint-induced
aphasia therapy (CIAT) has been widely used in post-stroke aphasia
rehabilitation. An increasing number of clinical controlled trials have
investigated the efficacy of the CIAT for the post-stroke aphasia.
Purpose
To
systematically review the randomized controlled trials (RCTs)
concerning the effect of the CIAT in post-stroke patients with aphasia,
and to identify the useful components of CIAT in post-stroke aphasia
rehabilitation.
Methods
A
computerized database search was performed through five databases
(Pubmed, EMbase, Medline, ScienceDirect and Cochrane library). Cochrane
handbook domains were used to evaluate the methodological quality of the
included RCTs.
Results
Eight
RCTs qualified in the inclusion criteria. Inconsistent results were
found in comparing the CIAT with conventional therapies without any
component from the CIAT based on the results of three RCTs. Five RCTs
showed that the CIAT performed equally well as other intensive aphasia
therapies, in terms of improving language performance. One RCT showed
that therapies embedded with social interaction were likely to enhance
the efficacy of the CIAT.
Conclusion
CIAT
may be useful for improving chronic post-stroke aphasia, however,
limited evidence to support its superiority to other aphasia therapies.
Massed practice is likely to be a useful component of CIAT, while the
role of “constraint” is needed to be further explored. CIAT embedded
with social interaction may gain more benefits.
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