Deep brain stimulation of symptom-specific networks in Parkinson's disease

Nat Commun. 2024 May 31;15(1):4662. doi: 10.1038/s41467-024-48731-1.

Abstract

Deep Brain Stimulation can improve tremor, bradykinesia, rigidity, and axial symptoms in patients with Parkinson's disease. Potentially, improving each symptom may require stimulation of different white matter tracts. Here, we study a large cohort of patients (N = 237 from five centers) to identify tracts associated with improvements in each of the four symptom domains. Tremor improvements were associated with stimulation of tracts connected to primary motor cortex and cerebellum. In contrast, axial symptoms are associated with stimulation of tracts connected to the supplementary motor cortex and brainstem. Bradykinesia and rigidity improvements are associated with the stimulation of tracts connected to the supplementary motor and premotor cortices, respectively. We introduce an algorithm that uses these symptom-response tracts to suggest optimal stimulation parameters for DBS based on individual patient's symptom profiles. Application of the algorithm illustrates that our symptom-tract library may bear potential in personalizing stimulation treatment based on the symptoms that are most burdensome in an individual patient.

Publication types

  • Multicenter Study

MeSH terms

  • Aged
  • Algorithms
  • Cerebellum / physiopathology
  • Cohort Studies
  • Deep Brain Stimulation* / methods
  • Female
  • Humans
  • Hypokinesia / physiopathology
  • Hypokinesia / therapy
  • Male
  • Middle Aged
  • Motor Cortex* / physiopathology
  • Muscle Rigidity / therapy
  • Parkinson Disease* / physiopathology
  • Parkinson Disease* / therapy
  • Treatment Outcome
  • Tremor* / physiopathology
  • Tremor* / therapy
  • White Matter / pathology
  • White Matter / physiopathology