Tourette syndrome is a neurological condition, characterized by sudden movements or sounds (tics) that cannot be controlled. Tics are repeated and involuntary vocalizations or movements. The cause of tics is not yet known. A person with this syndrome might repeatedly shrug his shoulders, blink his eyes or blurt offensive words.
Tourette syndrome is one of the three types of tic disorders – a collective reference to a group of neurodevelopmental and childhood-onset conditions. Besides Tourette syndrome, the other two types are provisional tic disorder and chronic tic disorder. All the three tic disorders are differentiated by the length of time tics persist and the types of tics, viz., vocal, motor or both.
The Tourette syndrome usually starts between 2 and 15 years of age. The average age of developing this syndrome is around 6 years. This neurological condition affects people from all ethnic groups and races. However, males are around four times more prone to develop this condition than females.
Sadly, there is no known cure for Tourette syndrome, but treatment helps relieve its symptoms. Most people with Tourette syndrome do not need medications if the symptoms are mild. The tics often reduce or even disappear after teenage or in early adulthood. Tourette syndrome is named after a French doctor and neurologist, Georges Gilles de la Tourette, who was the first to discover this syndrome in 1885.
Generally, Tourette syndrome runs in families and can co-occur with attention deficit hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), sleep disorders, behavioral issues, anxiety, depression or panic disorder. It has been estimated that around 200,000 Americans suffer from severe symptoms of Tourette syndrome, out of which, nearly 2000, including children, experience milder symptoms like chronic vocal or motor tics.
Tics are sudden, repeated and brief sounds or movements that cannot be controlled. These can range from mild to severe. If a child is suffering from tics, it might or might not be a case of Tourette syndrome. The transient tics vanish within a few months, but if the tics persist for over a year, then it might be Tourette syndrome. For the tics to be classified as Tourette syndrome, they must include at least one vocal tic.
Tics can be classified as below:
The tics can also involve sound (vocal tics) or movements (motor tics). Generally, the motor tics begin before the vocal tics. There are various types of tics that people experience.
Several common motor tics observed during Tourette syndrome are as follows:
Examples of Simple Tics | Examples of Complex Tics |
Jerking the head | Shaking the head |
Blinking eyes | Kicking or hitting objects |
Nose twitching | Shaking |
Teeth grinding | Jumping |
Neck twisting | Copying others’ movements or echopraxia |
Eye rolling | Making obscene gestures or copropraxia |
Several common vocal tics observed during Tourette syndrome are:
Examples of Simple Tics | Examples of Complex Tics |
Grunting or Barking | Repeating others’ phrases (echolalia) |
Coughing | Repeating the same phase again and again (palilalia) |
Clearing the throat | Swearing or shouting inappropriate words (coprolalia) |
Most people suffering from Tourette syndrome have unusual or uncomfortable feelings before the tics. The person might feel tingle, tension or an itch, known as premonitory sensations. Expressing tics relieve these sensations.
The tics may also vary in terms of severity, type and frequency. They might worsen during anxiety, stress or depression. Tics might change over time and can also occur while sleeping. These begin in childhood and usually improve as a person enters adulthood. With great determination and persistent efforts, a few people are able to effectively control their tics.
The main risk factors of Tourette syndrome are:
A few studies indicate several other risk factors of Tourette syndrome, but further research is required to confirm their consistency. These include:
If your child has:
Tourette Syndrome
then he/she might have Tourette syndrome. These can be transient tics that generally disappear in a few months. Possibilities are there that some other conditions like allergies, depression, attention deficit hyperactivity disorder (ADHD), vision problems, dystonia and autism spectrum disorder could be responsible for the tics.
If the child is showing unusual behavior, it is important to get him/her properly diagnosed to find out the root cause. The proper diagnosis can be made only by a medical expert, i.e., a psychiatrist, clinical psychologist or neurologist. These experts might conduct several tests to confirm Tourette syndrome. Generally, tics must persistently occur for around a year to be classified as Tourette syndrome.
The exact cause(s) of Tourette syndrome is not yet known. It is though believed to be caused by a combination of various genetic, neurological and environmental factors.
Abnormalities in certain regions of the brain, such as cortex, basal ganglia, frontal lobes and the circuits that interconnect these regions might be responsible for Tourette syndrome. Basal ganglia in the brain are majorly involved in controlling the body’s motor movements. Certain structural differences and abnormalities have been observed in basal ganglia of people with Tourette syndrome. Chemicals that transmit never impulses, known as neurotransmitters are also believed to play a role in the development of this condition. These neurotransmitters include serotonin, dopamine and norepinephrine.
It has also been speculated that Tourette syndrome is inherited, but the genes responsible for this syndrome are still not identified. A genetic mutation might disrupt normal development of the brain and Tourette’s symptoms may surface. Childhood infections by streptococcal bacteria are also linked with the development of Tourette syndrome.
There are no preventive measures for Tourette’s syndrome. It cannot be prevented as the exact causes of Tourette’s are still not known.
In general, there is no specific test to diagnose Tourette syndrome. The diagnosis is usually based upon history of symptoms and signs.
The criteria for its diagnosis include:
If the above criteria are met, the person is said to be suffering from Tourette’s syndrome. However, the symptoms might also be associated with other conditions. Coughing and sniffing can be due to some allergies. Some vision problem could be responsible for blinking of eyes more than usual.
With appropriate diagnosis, other conditions that have similar tic-like characteristics can also be ruled out. These conditions include dystonia and autistic spectrum disorder. For this, the doctor might conduct blood tests and brain imaging tests:
The treatment of Tourette syndrome might include medications, behavioral therapies and in rare cases, surgery. The treatment options are described below:
1. Medications: The medications that help control or reduce symptoms associated with Tourette syndrome are:
2. Therapies: A doctor might recommend psychotherapy and behavioral therapies for treating Tourette syndrome. This involves counseling with a licensed mental health practitioner. Comprehensive Behavioral Intervention for Tics (CBIT) is a new, evidence-based behavioral therapy, which includes habit reversal training as well as exposure and response prevention (ERP) training.
This therapy exposes a person to their urges and help them suppress their responses; thereby, allowing a patient to have more control over his/her urges. The person is taught to perform some other physical responses that can counter the urge. For example, for an urge of blinking the eyes, the person might purposely pat the left leg and avoid blinking the eyes. These therapies also help relieve the symptoms of anxiety, OCD and ADHD. Several other techniques that are used in therapy sessions are:
3. Surgery or Deep-Brain Stimulation (DBS): Surgery for Tourette syndrome has now largely been replaced with deep brain stimulation. This technique is used to treat extremely severe cases of Tourette syndrome, wherein all other treatments have failed.
DBS involves permanent implantation of small electrodes (metallic discs) in certain parts of the brain that are associated with Tourette syndrome. These electrodes are then attached to generators that are implanted in some other part of the body. The generators continuously send electronic pulses to the electrodes. This helps stimulate different parts of the brain. which eventually help control or reduce the symptoms of Tourette syndrome.
The following measures must be adopted by the caregiver of people with Tourette syndrome:
There are no over-the-counter (OTC) medications to treat Tourette syndrome. Medications for Tourette syndrome are only available on prescription. However, a patient can consume omega-3 fatty acid supplements. These essential fatty acids seem to improve anxiety, irritability and depression in people with Tourette syndrome. Folic acid supplements might also help and can be consumed, but only after consulting a doctor.
A person with this syndrome can self-manage his/her condition with the following tips:
The below-discussed natural remedies can be tried to prevent and manage the symptoms of Tourette syndrome:
Since Tourette syndrome is a complex neurological disorder and its symptoms can be difficult to manage, the parents of child suffering from this syndrome must work along with the doctor.
The parents are also advised to educate the child’s teachers and others, who interact daily with the child, about Tourette syndrome. Additionally, the teachers can stay in touch with the doctor to have a regular check on the child’s tics. This will help the child to lead a normal life with least difficulties.
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