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Chronic Motor Tic Disorder - Causes, Symptoms, Diagnosis, and Treatment

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Chronic motor tic disorder involves fast, uncontrolled, spasm-like movements or vocal outbursts. Let us learn more about this disorder in detail.

Medically reviewed by

Dr. Seyedaidin Sajedi

Published At April 3, 2023
Reviewed AtApril 3, 2023

Introduction:

Many people, at some point in their life, experience spasm-like movements of certain muscles. These types of movements, called tics and twitches, often affect the eyelids or face. They can, however, occur anywhere in the body. In most cases, tics and twitches are harmless and temporary. In some cases, though, they may be caused due to a tic disorder. Tic disorders can generally be managed with treatment and lifestyle changes.

What Is Chronic Motor Tic Disorder?

A chronic motor tic disorder is a condition that involves small, uncontrolled, spasm-like movements or vocal outbursts (referred to as phonic tics), but not both. If an individual experiences both a physical tic and a vocal outburst, the condition is known as Tourette syndrome.

A chronic motor tic disorder is much more common than Tourette syndrome but less common than transient tic disorder. A chronic motor tic disorder is a temporary and self-limited disorder expressed in the form of tics. Another type is called dystonic tics, which presents as abrupt bursts of movement later followed by a sustained contraction.

Chronic motor tic disorder starts appearing before 18 years of age and usually resolves within four to six years. Treatment can help reduce the effect of this condition on school or work life.

What Causes Chronic Motor Tic Disorder?

Doctors are not completely sure what leads to chronic motor tic disorder or why some kids develop it before others. Some suggest chronic motor tic disorder may be caused due to the result of physical or chemical abnormalities in the brain.

The chemicals that carry signals throughout the brain are called neurotransmitters. Sometimes they may not be working properly or not communicating correctly. This results in the same message being sent over and over again. It causes a physical tic.

Who Has a Risk of Chronic Motor Tic Disorder?

Children who have a family history of chronic tics or twitches are more predisposed to develop chronic motor tic disorder. In addition, boys are at higher risk of having chronic motor tic disorder than girls.

What Are the Symptoms of Chronic Motor Tic Disorder?

Individuals with a chronic motor tic disorder may exhibit the following symptoms:

  • Grimacing of the face (frowned appearance on the face).

  • Involuntary uncontrollable eye and face movements, such as repeatedly blinking, twitching of the nose, or jerking or clenching of the jaw.

  • Involuntary jerking of the arms, legs, or body muscles, but rarely the torso.

  • Producing certain sounds that can include grunts, coughs, sniffling, throat clearing, and contractions of the abdomen and diaphragm.

Some individuals experience strange sensations in the body before a tic occurs. They are usually capable of restraining their symptoms for short periods, but this requires effort. Giving in to a tic allows a sense of relief. They describe it as a response to an inner urge.

Tics may get worse due to:

  • Distress, anxiety, or embarrassment.

  • Lack of proper sleep.

  • Intense emotions.

  • Fever or illness.

  • Heat.

  • Fatigue.

  • Excitement.

How to Diagnose Chronic Motor Tic Disorders?

Tics are generally diagnosed during a regular appointment at a doctor’s office. Out of the following listed requirements, you or your child must meet two of the requirements to receive a diagnosis of chronic motor tic disorder:

  • Having an age less than 18 years when the tics began appearing.

  • Show one or more motor tics.

  • Have tics that often occur throughout the day, every single day, or occasionally sometimes as on and off for a minimum of a year.

  • Have not been diagnosed with Tourette syndrome.

  • Have tics that do not occur as a result of taking certain medications or other drugs and are not caused due to other medical issues.

Chronic motor tics are diagnosed only by physical examination, and no tests are generally needed.

How Is Chronic Motor Tic Disorder Treated?

The treatment that a person receives for chronic motor tic disorder will depend mainly on the severity of the disorder and how it is affecting their life. Medications and talk therapy (behavioral therapy) are the treatment options when the tics have a significant effect on the daily activities of the child or an adult.

Cognitive Behavioral Therapy

Cognitive behavioral therapy can prove helpful for a child to learn to restrain or control a tic for a short period of time. According to a study that was published in the journal of the American Medical Association in 2010, a treatment approach known as a comprehensive behavioral intervention for tics (CBIT) significantly improved symptoms of chronic motor tics in children.

In CBIT, children with chronic motor tics are trained and educated to recognize the urge of a tic and the use of a competing or replacement response instead of the tic.

Medications

Certain medications can help to control or reduce the tics. Medicines that doctors sometimes prescribe to control tics include the following:

  • Haloperidol (Haldol).

  • Risperidone (Risperdal).

  • Pimozide.

  • Topiramate (Topamax).

  • Aripiprazole (Abilify).

  • Guanfacine.

  • Clonidine.

  • Cannabis-based medications.

Cannabis-based products must not be given to children, adolescents, or pregnant, or lactating mothers. Other medical treatments may include a surgical procedure that involves the implantation of an electrical device in the brain. In addition, some individuals may get relief from the implantation of electrodes in the brain.

What Can Be Expected as the Long-Term Outlook (Prognosis) Of Chronic Motor Tic Disorder?

Those children who develop chronic motor tic disorder between six and eight years of age often do very well. However, symptoms of this disorder may last for four to six years and then stop showing in the early teens without the need for any treatment. When the condition starts in older children and gets carried on into the 20s, then it may turn into a lifelong condition.

Conclusion:

A chronic motor tic disorder is a condition characterized by small, fast, uncontrollable muscle movements that can occur anywhere in the body but most commonly affects the eyelids, face, arms, and legs. These movements are spasm-like and are brief and temporary. It usually affects young children but sometimes may also occur in adults. Medications and behavioral therapy are the recommended treatment of choice for this disorder.

Frequently Asked Questions

1.

Is It Possible for Chronic Motor Tic Disorder to Resolve on Its Own?

Chronic tics can sometimes be considered as variants of Tourette syndrome. Typically, tics tend to emerge around the age of 5 or 6 and typically peak in severity by the time a person reaches 12 years old. However, it's important to note that, for many individuals, tics often ameliorate or become less noticeable as they transition into adulthood. Chronic disorder may improve over time in some individuals, but it often follows adulthood. It is known to follow a variable course, with symptoms waxing and waning.

2.

What Are the Treatment Options for Chronic Motor Tic Disorder?

The treatment of chronic motor tic disorder typically involves a multidisciplinary approach. Behavioral therapies like comprehensive behavioral intervention for tics (CBIT) are often effective in helping individuals learn to manage and reduce their tics. Medications, such as antipsychotics or alpha-2 adrenergic agonists, can be prescribed by a healthcare professional to alleviate tic severity in more severe cases. Treatment decisions are individualized and based on the specific needs and preferences of the person with chronic motor tic disorder.

3.

Is Motor Tic Disorder a Significant Health Concern?

Motor tic is not seen as a very serious health problem. But how much it affdiffer's daily life can be different for each person. Many people with motor tic disorder can handle their tics and have a severe. But in more serious cases, tics can make daily activities hard and cause distress. How bad the disorder is really depends on the person and how much it affects their life. Generally, it is typically only necessary to visit a healthcare provider for a tic if it is very strong or makes it hard to do everyday things.

4.

When Do Tics Typically Become More Pronounced or Severe in Individuals?

In many instances, tics get better or even go away entirely as time passes. They might only last for a few months, but they often appear and disappear over several years. Tics are usually at their worst between the ages of about 8 and the teenage years, and they typically start to get better after reaching puberty.

5.

Is There a Link Between Vitamin Deficiency and Motor Tics?

Vitamin B-6 is naturally present in many foods and is a rare deficiency for individuals following a regular diet. It plays a role in controlling brain chemistry, immunity, and metabolism. A severe lack of vitamin B-6 has been connected to abnormalities in electroencephalographic patterns, which are related to the neuron activity in the brain linked to motor tics in conditions like Tourette's syndrome and obsessive-compulsive disorder. Vitamin B-6 deficiency often occurs alongside a deficiency in vitamin B-12.

6.

Can Excessive Screen Time Trigger Tics?

Signs of tic disorder, triggered by various factors such as spending too much time in front of screens, can involve repetitive body tics and involuntary nose tightening. Sometimes, children might constantly sigh, murmur, click their tongues, yell, raise and drop their shoulders, shake their heads, and move their jaw muscles abruptly. More severe instances can include mimicking other individuals' movements, touching one's own hair, kicking one's feet, and jumping repeatedly. Those affected might repeat phrases regardless of the situation.

7.

Are There Particular Vitamins That Can Alleviate Tic Symptoms?

Using L-theanine and vitamin B6 supplements has shown greater effectiveness in decreasing both tic and anxiety symptoms when compared to psychoeducational therapy. Certain vitamins and minerals like magnesium and vitamin B6 have been investigated for their potential to alleviate tics. However, their effectiveness can could be more from person to person, and the evidence is not robust.

8.

What Is the Prevalence of Chronic Tics?

Chronic tic disorders, which encompass conditions like Tourette syndrome, may impact roughly 1.4 million individuals in the United States. The exact prevalence of Tourette syndrome and chronic tics varies in different studies, but it is estimated to affect approximately 0.5 to 1 percent of the population. It is more common in males than females, with a male-to-female ratio of about 4:1. The severity and persistence of tics also vary among individuals, and many people with tics experience a reduction in symptoms as they reach adulthood.

9.

Which Mental Disorders Are Linked to the Presence of Tics?

Tics are usually associated with various neurological and psychiatric conditions. The most well-known of these is Tourette's syndrome, which is characterized by both motor and vocal tics. Other conditions, such as Attention-Deficit/Hyperactivity Disorder (ADHD) and Obsessive-Compulsive Disorder (OCD), may also feature tics as a symptom. However, it's important to note that not all individuals with tics have an underlying mental illness, and tics can occur on their own without being indicative of a specific disorder.

10.

What Methods Are Used to Assess and Diagnose Tics?

Diagnosing tics typically involves a clinical evaluation by a healthcare professional, such as a neurologist or psychiatrist. There is no specific test for tics, but the diagnosis is based on the presence and characteristics of tics over time. The healthcare provider will gather a comprehensive medical history, conduct a physical examination, and may use criteria from the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) to confirm the diagnosis. In some cases, video recording of tics may be helpful for evaluation.

11.

How Does Tourette’s Syndrome Differ From Chronic Tic Disorder?

The primary difference between Tourette's syndrome and chronic motor tic disorder lies in the presence of vocal tics. Tourette's syndrome is characterized by both motor and vocal tics, while chronic motor tic disorder involves only motor tics. To meet the criteria for Tourette's, the tics must be present for at least one year and have an onset before age 18. In contrast, chronic motor tic disorder may involve motor tics for over a year but lacks vocal tics, and its onset can be in adulthood.

12.

Is It Possible for People With Tics to Have A Normal Life?

Yes, many individuals with tics, including chronic motor tic disorder and Tourette's syndrome, can lead fulfilling and productive lives. While tics may present challenges, they can often be managed with therapeutic interventions, and the majority of individuals with tics do not experience severe impairment. Supportive environments, education, and understanding can help individuals with tics live normal, successful lives.

13.

Do Chronic Motor Tics Cause Discomfort or Pain?

Tics, both involving physical movements and vocalizations, can sometimes be linked to discomfort. In adults with Tourette syndrome (TS), this connection to pain may be as high as 47.5 percent. Pain has also been identified as a common accompanying element of tic disorders in childhood, affecting approximately 15 to 20 percent of children with tics. The most frequently reported pain includes ocular, cervical, shoulder, back, abdominal, and joint pain. There have also been mentions of carpal tunnel pain. While the majority of the reported pain initially has a musculoskeletal origin, neuropathic pain has also been documented. Pain typically occurs in association with voluntary movements or in efforts to suppress tics.

14.

What Are the Clinical Manifestations of Severe Motor Tics?

Severe motor tics can manifest in various ways, often characterized by sudden, repetitive, involuntary movements involving one or more muscle groups. These movements can be quick and abrupt and may involve the face, neck, shoulders, or other body parts. Severe motor tics can range from simple movements, such as eye blinking, grimacing, or head jerking, to more complex actions, such as hopping, twisting, or jumping. Additionally, these tics can sometimes be forceful and may lead to self-injury or discomfort, impacting the individual's daily functioning and quality of life.

15.

Is There a Connection Between Chronic Motor Tic Disorder and Autism?

Chronic motor tic disorder is not autism. They are distinct conditions with different diagnostic criteria. Chronic motor tic disorder is primarily characterized by the presence of motor tics. In contrast, Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by challenges in social communication and repetitive behaviors. However, an individual can have both chronic motor tic disorder and autism, as co-occurring conditions, but they are not the same. When it comes to tics and autism, it is worth noting that tics are commonly observed in individuals with Autism Spectrum Disorder (ASD).

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Dr. Seyedaidin Sajedi
Dr. Seyedaidin Sajedi

Neurology

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