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Essential tremor is a neurological disorder that occurs due to abnormal electrical activity of the brain that causes involuntary movements of the body. These involuntary movements are only observed in the upper part of the body. However, the major movements of these tremors are seen in the hands.
Essential tremors are not life-threatening but may cause mild to moderate trembling in the upper body parts. These affect the normal functioning of the individual and are observed in:
Essential tremor is not a major neurological condition. Therefore, treatment is provided for the symptoms to minimize the risk of neuronal damage or disability.
Sign and Symptoms
The signs and symptoms of essential tremor include:
The initial diagnosis of essential tremor is usually based on the physical findings and the family history of the individual. There is no specific biological marker to detect essential tremors. However, the doctor recommends a set of laboratory tests and image scans that helps in detecting the condition.
The laboratory tests for essential tremors include blood and urine test to determine any abnormality of the thyroid functions, electrolyte imbalance and alcohol intoxication. The test also helps to determine the occurrence of adverse side effects of any drug.
The image scans such as computed tomography (CT) scan and magnetic resonance imaging (MRI) scan helps in determining the underlying cause of tremors such as Parkinson's disease, multiple sclerosis, migraine headache or muscle weakness. Image scan is performed when the intensity of the tremors are acute and intensifies over a period.
Apart from laboratory and imaging scan, a set of performance test is performed that helps in analyzing the severity of the condition. The individual may be analyzed for:
Causes and Risk Factors
Essential tremors are assumed to occur due to abnormal brain impulses or due to gene mutations. However, the exact cause of essential tremor is not known in people with genetic mutations. A child of the diseased parent with essential tremors is at a higher risk of developing the condition.
The incidences of essential tremor are known to increase in people above 40 years of age.
Essential tremors are known to affect your daily activities such as:
Depending on the severity of the condition, essential tremors can be treated either through use of medicines or surgical procedures.
The doctor may prescribe either anti-epileptic agents, beta blockers, tranquillisers or botox injections.
Anti-epileptic drugs: It prevents the excitability of the nerve cells that help in reducing nerve activity.
Beta blockers: It prevents the worsening of essential tremors by limiting the release of adrenaline.
Tranquillizers: It helps in calming down the patients as anxiety and tension increase the risk of tremors.
Botox injections:It is used to treat certain types of tremors such as head tremors. However, if these injections are used for hand tremors, they cause weakness of the fingers.
Surgery is a suitable option for treatment of essential tremors when the individual does not respond to medication therapy. The surgery may involve deep brain stimulation, where a probe is inserted into the thalamic region of the brain. The wire of the probe is connected to a neuro-stimulator device that is attached to the chest.
This device helps in the transmission of signals to the brain preventing the brain from releasing signals that cause tremors.
Other Physical Therapies
The doctor may suggest physiotherapy, physical exercise and yoga toimprove muscle strength and tensile strength that helps in relieving the symptoms of essential tremors. However, these therapies are suggested along with medication or surgery for better recovery from the condition.
There is no cure for essential tremors. The regular use of medicines with regular exercise helps in easing the symptoms of essential tremors. It is advised to follow-up with the doctor if the symptoms of the tremors worsen over time.
Geeta Dutta, a patient from West Bengal got in touch with Dr Venugopal Subramaniam, Consultant Neurosurgeon at Manipal Hospitals Whitefield through the OPD clinic programme and then later was guided by him towards a craniotomy & brain tumour removal.
Manika Saha, a patient from West Bengal got in touch with Dr. Venugopal Subramaniam, Consultant Neurosurgeon at Manipal Hospitals Whitefield through the OPD clinic programme and then later was guided by him towards a brain tumour removal in Whitefield, Bengaluru which gave her vision back.
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