Long-term effect of additional rehabilitation following botulinum toxin-A on upper limb activity in chronic stroke: the InTENSE randomised trial
- PMID: 35468766
- PMCID: PMC9036685
- DOI: 10.1186/s12883-022-02672-8
Long-term effect of additional rehabilitation following botulinum toxin-A on upper limb activity in chronic stroke: the InTENSE randomised trial
Abstract
Background: It is common for people with persistent spasticity due to a stroke to receive an injection of botulinum toxin-A in the upper limb, however post-injection intervention varies.
Aim: To determine the long-term effect of additional upper limb rehabilitation following botulinum toxin-A in chronic stroke.
Method: An analysis of long-term outcomes from national, multicenter, Phase III randomised trial with concealed allocation, blinded measurement and intention-to-treat analysis was carried out. Participants were 140 stroke survivors who were scheduled to receive botulinum toxin-A in any muscle(s) that cross the wrist because of moderate to severe spasticity after a stroke greater than 3 months ago, who had completed formal rehabilitation and had no significant cognitive impairment. Experimental group received botulinum toxin-A plus 3 months of evidence-based movement training while the control group received botulinum toxin-A plus a handout of exercises. Primary outcomes were goal attainment (Goal Attainment Scale) and upper limb activity (Box and Block Test) at 12 months (ie, 9 months beyond the intervention). Secondary outcomes were spasticity, range of motion, strength, pain, burden of care, and health-related quality of life.
Results: By 12 months, the experimental group scored the same as the control group on the Goal Attainment Scale (MD 0 T-score, 95% CI -5 to 5) and on the Box and Block Test (MD 0.01 blocks/s, 95% CI -0.01 to 0.03). There were no differences between groups on any secondary outcome.
Conclusion: Additional intensive upper limb rehabilitation following botulinum toxin-A in chronic stroke survivors with a disabled upper limb is not more effective in the long-term.
Trial registration: ACTRN12615000616572 (12/06/2015).
Keywords: Botulinum toxin type A; Neuroscience; Rehabilitation; Spasticity; Stroke; Wrist.
© 2022. The Author(s).
Conflict of interest statement
J Olver and S Gonzalez declare that they have received honoraria from Allergan; J Olver, M Palit and S Gonzalez declare that they have received honoraria from Ipsen; S Gonzalez declares that he has received honoraria from Merz. The other authors report no conflicts.
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References
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