Abstract
Background
Cervical dystonia is the most common form of focal idiopathic dystonia and is frequently associated with pain. Headaches are not considered to be more prevalent amongst patients presenting with cervical dystonia, and headaches attributed to craniocervical dystonia are considered to be a rare disorder, despite the lack of studies and clinical information regarding the subject.
Objectives
To investigate the prevalence, characteristics, and impact of headaches attributed to craniocervical dystonia in cervical dystonia patients receiving treatment with botulinum toxin type‐A (BoT‐A).
Methods
Twenty‐four patients presenting with cervical dystonia were assessedbefore receiving their scheduled BoNT‐A injections and then again approximately four and sixteen weeks after, regarding the clinical characteristics of their dystonia and headaches. Headaches were classified in accordance with the current International Classification of Headache Disorders. We used the Short Form‐36 Health Survey, Hospital Anxiety and Depression Scale, Headache Impact Test‐6, Toronto Western Spasmodic Torticollis Rating Scale and McGill Pain Questionnaire.
Results
Nineteen patients (79.1%) presented with cervical dystonia associated with pain and 18 (75.0%) with headaches. The prevalence of headaches attributed to craniocervical dystonia was 29.2%; HIT‐6: 60.1 ± 9.9. Patients with headaches presented significantly poorer TWSTRS pain scores, compared to patients with no headaches. Those with headaches attributed to craniocervical dystonia presented with more disability and demonstrated a significant improvement in the impact of headaches after BoNT‐A injections, together with an improvement in the dystonia.
Conclusions
Headaches are highly prevalent amongst cervical dystonia patients, have an impact on their quality of life and improves after BoNT‐A injections.
from Wiley: European Journal of Pain: Table of Contents https://ift.tt/2Tj1l7A
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