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Article

The Impact of the Course of Disease before Botulinum Toxin Therapy on the Course of Treatment and Long-Term Outcome in Cervical Dystonia

Department of Neurology, Moorenstrasse 5, D-40225 Düsseldorf, Germany
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Author to whom correspondence should be addressed.
Received: 1 June 2021 / Revised: 10 July 2021 / Accepted: 13 July 2021 / Published: 16 July 2021
(This article belongs to the Special Issue Botulinum Toxins in Clinical Practice)
This study analyses the influence of the course of the disease of idiopathic cervical dystonia (CD) before botulinum toxin (BoNT) therapy on long-term outcomes. 74 CD-patients who were treated on a regular basis in the botulinum toxin outpatient department of the University of Düsseldorf and had received at least 3 injections were consecutively recruited after written informed consent. Patients were asked to rate the amount of change of CD in relation to the severity of CD at begin of BoNT therapy (IMPQ). Then they had to draw the course of disease of CD from onset of symptoms until initiation of BoNT therapy (CoDB-graph) on a sheet of paper into a square of 10 × 10 cm2 size. Remaining severity of CD was estimated by the treating physician using the TSUI-score. Demographical and treatment related data were extracted from the charts of the patients. Depending on the curvature four different types of CoDB-graphs could be distinguished. Time to BoNT therapy, increase of dose and improvement during BoNT treatment were significantly (p < 0.05) different when patients were split up according to CoDB-graph types. The lower the age at onset of symptoms, the shorter was the time to therapy (p < 0.02). Initial dose (p < 0.04) and actual dose (p < 0.009) were negatively correlated with the age of the patients at recruitment. The course of disease of CD before BoNT therapy has influence on long-term outcome. This has implications on patient management and information on the efficacy of BoNT treatment. View Full-Text
Keywords: cervical dystonia; natural history; course of disease; CoDB-graph; botulinum toxin therapy; long-term outcome; patient’s drawing cervical dystonia; natural history; course of disease; CoDB-graph; botulinum toxin therapy; long-term outcome; patient’s drawing
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MDPI and ACS Style

Hefter, H.; Schomaecker, I.; Schomaecker, M.; Rosenthal, D.; Samadzadeh, S. The Impact of the Course of Disease before Botulinum Toxin Therapy on the Course of Treatment and Long-Term Outcome in Cervical Dystonia. Toxins 2021, 13, 493. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13070493

AMA Style

Hefter H, Schomaecker I, Schomaecker M, Rosenthal D, Samadzadeh S. The Impact of the Course of Disease before Botulinum Toxin Therapy on the Course of Treatment and Long-Term Outcome in Cervical Dystonia. Toxins. 2021; 13(7):493. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13070493

Chicago/Turabian Style

Hefter, Harald, Isabelle Schomaecker, Max Schomaecker, Dietmar Rosenthal, and Sara Samadzadeh. 2021. "The Impact of the Course of Disease before Botulinum Toxin Therapy on the Course of Treatment and Long-Term Outcome in Cervical Dystonia" Toxins 13, no. 7: 493. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13070493

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