What is post-stroke spasticity (PSS)?
What is spasticity?
- Spasticity is a common consequence of neurological disorders, such as stroke,6 and presents as intermittent or sustained involuntary activation of muscles7
- Spasticity primarily affects the shoulder, elbow, forearm, wrist, fingers/hand, thumb, ankle and foot.5
- If left untreated, spasticity can cause shortening of muscles and tendons, and a vicious cycle can develop8
Adapted from Royal College of Physicians. Spasticity in adults: management using botulinum toxin, 20188
Features of spasticity8
Prevalence of PSS increases with post-stroke survival time9
TIME POST-STROKE:
Adapted from Wissel J et al, 2013.9
In a prospective cohort study of patients after a first ischaemic stroke, when 211 patients were assessed after 6 months, 43% had developed spasticity and 15.6% had developed a more severe degree of spasticity (MAS ≥3).10
A timely diagnosis may avoid worsening of untreated spasticity8
Post-stroke timeline
Neural changes may drive the onset of post-stroke spasticity9,11
If patients are not treated in a timely manner their spasticity may become more disabling over time, causing pain, deformity and contracture.15,16
A switch to intrinsic muscle remodelling between 3 and 18 months may lead to chronic severe spasticity, preventing a full recovery.9, 11, 15, 16
47% of patients do not receive botulinum toxin within a year of developing spasticity (N=132).17
Rehabilitation therapies applied within the first 3 months post-stroke are likely to deliver the most benefit.18
MAS, Modified Ashworth Scale; PSS: post-stroke spasticity.
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Adverse events should be reported. Reporting forms and information can be found at https://yellowcard.mhra.gov.uk/ or via the MHRA Yellow Card app, available in the Google Play or Apple App Stores.
Adverse events should also be reported to AbbVie on GBPV@abbvie.com
Date of preparation: June 2024. UK-BTX-240031.