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EUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE

Rivista di Medicina Fisica e Riabilitativa dopo Eventi Patologici


Official Journal of the Italian Society of Physical and Rehabilitation Medicine (SIMFER), European Society of Physical and Rehabilitation Medicine (ESPRM), European Union of Medical Specialists - Physical and Rehabilitation Medicine Section (UEMS-PRM), Mediterranean Forum of Physical and Rehabilitation Medicine (MFPRM), Hellenic Society of Physical and Rehabilitation Medicine (EEFIAP)
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European Journal of Physical and Rehabilitation Medicine 2017 April;53(2):256-67

DOI: 10.23736/S1973-9087.16.04329-X

Copyright © 2016 EDIZIONI MINERVA MEDICA

lingua: Inglese

Efficacy and safety of botulinum toxin type A for upper limb spasticity after stroke or traumatic brain injury: a systematic review with meta-analysis and trial sequential analysis

Yan DONG 1, 2, Tao WU 3, Xiaohua HU 2, Tong WANG 4

1 Nanjing Medical University, Nanjing, China; 2 Department of Rehabilitation Medicine, Hangzhou Hospital of Zhejiang Chinese Armed Police Force, Hangzhou, China; 3 Department of Rehabilitation Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China; 4 Department of Rehabilitation Medicine, First Affiliated Hospital of Nanjing Medical University, Nanjing, China


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INTRODUCTION: Muscle spasticity is a positive symptom after stroke and traumatic brain injury. Botulinum toxin type A (BoNT-A) injection is widely used for treating post stroke and traumatic brain injury spasticity. This study aimed to evaluate efficacy and safety of BoNT-A for upper limb spasticity after stroke and traumatic brain injury and investigate reliability and conclusiveness of available evidence for BoNT-A intervention.
EVIDENCE ACQUISITION: We searched electronic databases from inception to September 10 of 2016. Randomized controlled trials comparing the effectiveness between BoNT-A and placebo in stroke or traumatic brain injury adults with upper limb spasticity were included. Reliability and conclusiveness of the available evidence were examined with trial sequential analysis.
EVIDENCE SYNTHESIS: From 489 citations identified, 22 studies were included, reporting results for 1804 participants. A statistically significant decrease of muscle tone was observed at each time point after BoNT-A injection compared to placebo (SMD at week 4=-0.98, 95% CI: -1.28 to -0.68; I2=66%, P=0.004; SMD at week 6=-0.85, 95% CI: -1.11 to -0.59, I2=1.2%, P=0.409; SMD at week 8=-0.87, 95% CI: -1.15 to -0.6, I2=0%, P=0.713; SMD at week 12=-0.67, 95% CI: -0.88 to -0.46, I2=0%, P=0.896; and SMD over week 12=-0.73, 95% CI: -1.21 to -0.24, I2=63.5%, P=0.065).Trial sequential analysis showed that as of year 2004 sufficient evidence had been accrued to show significant benefit of BoNT-A four weeks after injection over placebo control. BoNT-A treatment also significantly reduced Disability Assessment Scale Score than placebo at 4, 6 and 12-week follow-up period (WMD=-0.33, 95% CI: -0.63 to -0.03, I2=60%, P=0.114; WMD=-0.54, 95% CI: -0.74 to -0.33, I2= 0%, P=0.596 and WMD=-0.3, 95% CI: -0.45 to -0.14, I2=0%, P=0.426 respectively), and significantly increased patients’ global assessment score at week 4 and 6 after injection (SMD=0.56, 95% CI: 0.28 to 0.83; I2=0%, P=0.681 and SMD=1.11, 95% CI: 0.4 to 1.77; I2=72.8%, P=0.025 respectively). No statistical difference was observed in the frequency of adverse events between BoNT-A and placebo group (RR=1.36, 95% CI [0.82, 2.27]; I2=0%, P=0.619).
CONCLUSIONS: As compared with placebo, BoNT-A injections have beneficial effects with improved muscle tone and well-tolerated treatment for patients with upper limb spasticity post stroke or traumatic brain injury.


KEY WORDS: Stroke - Brain injuries - Upper extremity - Muscle spasticity - Botulinum toxins

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Publication History

Issue published online: May 4, 2017
Article first published online: November 11, 2016
Manuscript accepted: November 10, 2016
Manuscript revised: November 8, 2016
Manuscript received: May 2, 2016

Per citare questo articolo

Dong Y, Wu T, Hu X, Wang T. Efficacy and safety of botulinum toxin type A for upper limb spasticity after stroke or traumatic brain injury: a systematic review with meta-analysis and trial sequential analysis. Eur J Phys Rehabil Med 2017;53:256-67. DOI: 10.23736/S1973-9087.16.04329-X

Corresponding author e-mail

wangtong60621@aliyun.com