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Explosive-aggressive behavior related to bilateral subthalamic stimulation
M Sensi1, R Eleopra, M A Cavallo
1Dipartimento di Neuroscienze applicate alla clinica, U.O. Neurologia, Azienda Ospedaliera Universitaria S. Anna, Hospital of Ferrara, Corso Giovecca 203, Ferrara 44100, Italy. chiasen@mailcity.com
Parkinsonism & Related Disorders
|May 4, 2004
Summary
Deep brain stimulation for Parkinson's Disease may cause aggressive behavior. Adjusting stimulation intensity is crucial for managing emotional side effects and improving patient quality of life.
Area of Science:
- Neuroscience
- Neurosurgery
- Psychiatry
Background:
- Parkinson's Disease (PD) is a progressive neurodegenerative disorder.
- Bilateral subthalamic nucleus deep brain stimulation (DBS) is an established treatment for PD.
- DBS involves surgically implanting electrodes to modulate abnormal brain activity.
Observation:
- A patient with PD experienced new-onset aggressive behavior disorder after DBS surgery.
- Symptoms included disturbed impulse control and difficulty managing anger.
- These behavioral changes emerged after the "switch-on" of the DBS device.
Findings:
- The aggressive behavior is hypothesized to be related to the "switch-on" stimulation intensity.
- Increased voltage may affect adjacent limbic system pathways involved in emotional regulation.
- Subthalamic nucleus DBS may have unintended effects on affect and emotional behavior.
Implications:
- Neuropsychological disturbances should be evaluated in patients undergoing DBS for PD.
- The intensity of DBS stimulation may require careful titration to balance motor and behavioral outcomes.
- Further research is needed to understand the relationship between DBS parameters and emotional regulation in PD patients.