Asymmetric DBS for PD : A Multicenter, Prospective, Single Arm, Open Label Study (ADP)
Parkinson Disease
About this trial
This is an interventional treatment trial for Parkinson Disease focused on measuring deep brain stimulation, subthalamic nucleus, globus pallidus interna, asymmetric deep brain stimulation
Eligibility Criteria
Inclusion Criteria:
- Diagnosed with idiopathic Parkinson's disease based on the MDS clinical diagnostic criteria for Parkinson's disease
- Aged more than 18 years
- Levodopa challenge test indicating a preoperative levodopa responsiveness over 24% based on MDS UPDRS-III
- the modified Hoehn-Yahr Scale between 2 and 4 under on-medication condition
- Compliance with written informed consent
Exclusion Criteria:
- Atypical parkinsonian syndrome
- History of stroke, encephalitis, neuroleptic uses, MRI scan with evidence of significant brain atrophy, lacunar infracts, or other conditions that might interfere with the intracranial surgery
- Presence of cognitive, or psychiatric or other co-morbidities (e.g., dementia, epilepsy, cranial traumatism, brain tumor, schizophrenia, severe depression or bipolar disorder, personality disorder, etc.) that might interfere with the patient's ability to complete the evaluations or to provide informed consent
- Presence of anatomical abnormalities in the target region
- Clinically significant medical history or that increases pre-/post-operative complications
- Other conditions considered by the investigators that might interfere with the surgery procedure, the follow-ups, and the interpretation of the data
Sites / Locations
Arms of the Study
Arm 1
Experimental
Asymmetric DBS group
In this arm, a one-staged combined unilateral STN and contralateral GPi DBS will be implanted into PD patients. For postural instability and gait difficulty (PIGD)-dominant patients, the GPi in the side contralateral to the leg with longer step length will be targeted. For tremor-dominant (TD) patients, the STN in the side contralateral to the body side that mostly affected will be targeted. For PD patients of mixed type, the choice of target will depend on the judgement of a multidisciplinary team based on clinical features.