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Surgery for Movement and
Psychiatric Disorders
Dr. Paresh K Doshi
In-charge Stereotactic and Functional Neurosurgical Program
Jaslok Hospital and Research Centre
Movement Disorders
 Parkinsons Disease
 Tremors
 Dystonia
Parkinsons Disease
 Tremors, slow movements, stiffness,
postural instability
 8-20/10,000
 Usually associated with old age- young not
uncommon
 Levodopa treatment most effective initially
Medical Management
Levodopa- Dopamine replacement
Other drugs:
Dopamine agonists like ropinarole, pramipexole
etc.
Side effects:
NauseaVomiting
Dyskinesias, Hallucinations, Constipation
Who is the best surgical candidate
 Usually >5yrs of disease
 on-off fluctuations
 Significant dyskinesias
 Off phase dystonia and pain
 Uncontrolled tremors
 Levodopa responsive symptoms
Parkinsons Disease Target
STN
7x9x5mm
Surgical strategies for Parkinsons
Disease
LesionLesion StimulationStimulation
Subthalamic nucleusSubthalamic nucleus
What is Deep Brain Stimulation
IPG
LEAD
What is Deep Brain Stimulation
STN Lesion
 Total no. of Movement Disorders Surgeries- 254
 Deep brain stimulation surgeries-182
 DBS for PD-162
Demographics
Rajkot press
Surgery
Instantaneous relief
Real Estate Consultant Back on his Legs
Preop 1Y Postop
3Y Postop
TextDoctors Also!!!
N=30
N=26
59%
54%
Doshi et al, Neurology India 2004
Doshi et al, Movement Disorder 2006
Results
N=30
N=26
36%
38%
Doshi et al, Neurology India 2004
Doshi et al, Movement Disorder 2006
Results
STN Lesioning
After 5 years
Thank You

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Editor's Notes

  • #9: Dbs consists of implantation of the electrode in deeply located cells of the brain. This electrode is only 1 mm in diameter and has four contact points that can be used to deliver current. The electrode is connected to a pacemaker with the help of subcutaneously tunneled wires brought down behind the ear. The pacemaker is implanted below the collar bone under the pad of skin and fat. This whole system is implanted in such a way that it is not visible easily to the onlooker. Current is generated in the pacemaker and is delivered to the brain cells via one of the contact points.
  • #10: The advantage of deep brain stimulation is its immense flexibility in delivering current. The whole system can be programmed from outside, giving the physician complete freedom to tailor the treatment to suit each individual patients need, one can even choose different combinations of current parameters for the right and left side of brain. Patients are given a small remote control known as access device. With the help of this the patients can alter current setting to suit their daily requirements. As the limits of this alterations can be set by the physician, there is no fear of harming one self.