Adjuvant medical therapy in cervical dystonia after deep brain stimulation: A retrospective analysis

Front Neurol. 2022 Aug 5:13:927573. doi: 10.3389/fneur.2022.927573. eCollection 2022.

Abstract

Background: There is limited information on optimization of symptomatic management of cervical dystonia (CD) after implantation of pallidal deep brain stimulation (DBS).

Objectives: To describe the long-term, "real-world" management of CD patients after DBS implantation and the role of reintroduction of pharmacologic and botulinum toxin (BoNT) therapy.

Methods: A retrospective analysis of patients with focal cervical or segmental craniocervical dystonia implanted with DBS was conducted.

Results: Nine patients were identified with a mean follow-up of 41.7 ± 15.7 months. All patients continued adjuvant oral medication(s) to optimize symptom control post-operatively. Three stopped BoNT and four reduced BoNT dose by an average of 22%. All patients remained on at least one medication used to treat dystonia post-operatively.

Conclusion: Optimal symptom control was achieved with DBS combined with either BoNT and/or medication. We suggest utilization of adjuvant therapies such as BoNT and/or medications if DBS monotherapy does not achieve optimal symptom control.

Keywords: botulinum toxin; cervical dystonia; deep brain stimulation; long-term follow up; medical therapy.