タイトル（掲載誌）Journal of Stroke and Cerebrovascular Diseases
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Objective: This study examined how the effects of botulinum toxin therapy changed over time by sequential evaluation of clinical improvements in spasticity and contracture in 24 chronic-stage stroke patients on repeated botulinum toxin therapy who were receiving fewer rehabilitation interventions.Methods: Botulinum toxin injection was administered into the spastic muscle of the paralyzed upper or lower limb 5 times with at least 3-month intervals. Modified Ashworth Scale and range of motion were measured before and 2 weeks after each dose in the extremities to compare the first measurement value with subsequent values. Each predose value was also compared with the first predose value.Results: Compared with predose scores, Modified Ashworth Scale significantly improved in all flexors after 2 weeks from the first to fifth doses. Range of motion significantly improved in wrist dorsiflexion and ankle dorsiflexion. Comparison of values before each dose versus the first predose value showed significant improvement both in the Modified Ashworth Scale score of wrist flexors, finger flexors, and ankle planter flexors, and the range of motion of elbow extension, wrist dorsiflexion, and ankle dorsiflexion.Conclusion: The comparison of predose values versus 2-week postdose values indicated that the effect of botulinum toxin formulation would not lessen after repeated injections with continuous improvements of Modified Ashworth Scale and range of motion. The comparison of predose values versus the first predose value also suggested that multiple injections of botulinum toxin formulation could be more effective in reducing spasticity and increasing the range of motion than a single injection.
identifier:PMID: 31699575
DOIinfo:doi/10.1016/j.jstrokecerebrovasdis.2019.104481.
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