Treatment of Dystonia in Primary Cranial or Cervical Dystonia

This protocol is specific to patients presenting with primary cranial dystonia (excluding oromandibular involvement) or primary cervical dystonia — two distinct focal sub-types that share a defined evidence-based management path.

Primary cervical dystonia is a key sub-population explicitly covered by this protocol. Alongside primary cranial dystonia (excluding oromandibular), it represents a well-characterised group for which guideline-level evidence supports a structured treatment approach.

The regimen for this scenario involves a surgical neuromodulation procedure targeting a specific deep brain structure. Candidate selection, procedural parameters, and follow-up are defined in the full protocol.