Botulinum Toxin A for Shoulder Pain After Stroke

Summary

Shoulder pain after stroke is a very common, causing significant morbidity disease. Subacromial and subdeltoid (SASD) bursitis are common causes of pain or disability of the shoulder joint in stroke patients. Traditional therapeutic approaches for the shoulder pain therapy including pharmacotherapy, injection therapy, physical therapy, and behavioural modification. Unfortunately, these therapy methods may not be effective in many patients and long term benefit after treatment is transient, the outcomes may also be incomplete or non-existent. Botulinum toxin A (BoNT-A) is a neurotoxin that can inhibit not only the acetylcholine at the neuromuscular junctions but also other neurotransmitters such as glutamate, substance P and calcitonin gene related peptide, all of which have been indicated in pain transmission. Despite the therapeutic benefit of BTX in alleviating painful muscle spasms, its efficacy in SASD bursitis conditions is less clear. So we perform this study to examine the efficacy of ultrasound guided SASD injection with BoNT-A in reducing refractory shoulder pain after stroke.

Timeline

Start

2016-02

Primary completion

2018-06

Completion

2018-12

Publications

• Results Lee JH, Lee SH, Song SH. Clinical effectiveness of botulinum toxin type B in the treatment of subacromial bursitis or shoulder impingement syndrome. Clin J Pain. 2011 Jul-Aug;27(6):523-8. doi: 10.1097/AJP.0b013e31820e1310.
• Results McMahon HT, Foran P, Dolly JO, Verhage M, Wiegant VM, Nicholls DG. Tetanus toxin and botulinum toxins type A and B inhibit glutamate, gamma-aminobutyric acid, aspartate, and met-enkephalin release from synaptosomes. Clues to the locus of action. J Biol Chem. 1992 Oct 25;267(30):21338-43.
• Results Bach-Rojecky L, Salkovic-Petrisic M, Lackovic Z. Botulinum toxin type A reduces pain supersensitivity in experimental diabetic neuropathy: bilateral effect after unilateral injection. Eur J Pharmacol. 2010 May 10;633(1-3):10-4. doi: 10.1016/j.ejphar.2010.01.020. Epub 2010 Feb 1.
• Results Hsieh LF, Hsu WC, Lin YJ, Wu SH, Chang KC, Chang HL. Is ultrasound-guided injection more effective in chronic subacromial bursitis? Med Sci Sports Exerc. 2013 Dec;45(12):2205-13. doi: 10.1249/MSS.0b013e31829b183c.
• Results Wu T, Song HX, Dong Y, Li JH. Ultrasound-guided versus blind subacromial-subdeltoid bursa injection in adults with shoulder pain: A systematic review and meta-analysis. Semin Arthritis Rheum. 2015 Dec;45(3):374-8. doi: 10.1016/j.semarthrit.2015.05.011. Epub 2015 May 21.
• Results Wu T, Fu Y, Song HX, Ye Y, Dong Y, Li JH. Effectiveness of Botulinum Toxin for Shoulder Pain Treatment: A Systematic Review and Meta-Analysis. Arch Phys Med Rehabil. 2015 Dec;96(12):2214-20. doi: 10.1016/j.apmr.2015.06.018. Epub 2015 Jul 17.

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