Essential tremor treatment
Medical treatments for essential tremor aim to reduce or control the severity of tremors. Here are some common medical treatment options:
Beta-Blockers:
Examples: Propranolol and primidone Mechanism: Beta-blockers, commonly used for heart conditions, can help reduce tremors by affecting the action of certain neurotransmitters in the brain. Anticonvulsants:
Examples: Primidone, topiramate, and gabapentin Mechanism: These medications, initially developed to treat seizures, may be effective in reducing tremors. Primidone is particularly commonly used. Gabapentin:
Mechanism: Originally developed to treat seizures, gabapentin may help in reducing tremors associated with essential tremor. Topiramate:
Mechanism: Another anticonvulsant, topiramate, has been used off-label for essential tremor. It is believed to affect neurotransmitters in the brain. Botulinum Toxin Injections:
Mechanism: Injecting small amounts of botulinum toxin into specific muscles can help reduce tremors. This treatment is typically reserved for focal hand tremors. Cognitive Behavioral Therapy (CBT):
Mechanism: While not a medication, cognitive-behavioral therapy can help individuals manage the emotional and psychological impact of essential tremor. Lifestyle Modifications:
Avoiding Triggers: Identifying and avoiding factors that can exacerbate tremors, such as caffeine or stress, may help manage symptoms. Improving Sleep: Ensuring adequate sleep can sometimes have a positive impact on tremor severity. Occupational Therapy:
Techniques: Occupational therapists can teach individuals specific techniques and strategies to improve daily functioning despite the tremors. It's important to note that the effectiveness of medications can vary from person to person. Additionally, some individuals may experience side effects that limit the use of certain medications. In cases where medications are ineffective or not well-tolerated, surgical interventions like deep brain stimulation (DBS) may be considered. As with any medical condition, individuals with essential tremor should consult with a healthcare professional for a personalized evaluation and treatment plan.
Stimulation
Thalamic stimulation may be useful for tremors that are refractory to medical treatment, including tremor dominant Parkinson's disease, essential tremor, 1), 2) cerebellar and posttraumatic tremor 3). Prior to being considered for surgical intervention, it should be determined that the patient has failed maximal medical therapy. Side effects of Vim stimulation include paresthesias, H/A, dysequilibrium, dysarthria, dystonia & localized pain.
Drug-resistant essential tremor (ET) can benefit from open standard stereotactic procedures, such as deep-brain stimulation or radiofrequency thalamotomy. Non-surgical candidates can be offered either high-focused ultrasound (HIFU) or radiosurgery (RS).
All procedures aim to target the same thalamic site, the ventro-intermediate nucleus (e.g., VIM). The mechanisms by which tremor stops after Vim RS or HIFU remain unknown.