Disease Description (Causes and Symptoms)
- Overview: This disease is a neurological disorder characterized by repetitive and involuntary motor tics (such as blinking, grimacing, and shrugging) and vocal tics (such as coughing sounds, sniffing, and sometimes vocalizations resembling swearing) that persist for more than one year. Motor and vocal tics may occur simultaneously or alternately.
- Causes·Pathophysiology: There is a strong genetic susceptibility (high concordance rates in family-history and twin studies), and imbalances in neurotransmitters such as dopamine and functional abnormalities in the cortico-striato-thalamo-cortical circuit are involved. Environmental factors (such as stress and post-infectious immune responses) and brain injury during childbirth may also have an influence.
- Main symptoms: Repetitive and difficult-to-suppress tic symptoms (motor and vocal). Symptoms worsen with emotional stress, fatigue, and excitement, usually begin in childhood (around age 7), become more severe during adolescence, and tend to improve in adulthood.
- Comorbid conditions: ADHD, obsessive-compulsive disorder (OCD), learning disabilities, anxiety·depression, and sleep disorders are frequently associated.
Treatment Methods
- Non-pharmacological treatment
- Behavioral therapy (first-line recommendation): Comprehensive Behavioral Intervention for Tics (CBIT) and Habit Reversal Training. Treatment that involves recognizing the premonitory sensory urge before a tic and learning a competing response is effective.
- Psychosocial support: Education (for the family and school), stress management, and psychosocial interventions.
- Pharmacological treatment
- Antipsychotic medications (effective in reducing tics): Haloperidol and pimozide (typical medications), and risperidone·aripiprazole (atypical antipsychotics). Although they are effective, monitoring for side effects such as EPS (extrapyramidal symptoms), weight·metabolic abnormalities, and QT prolongation (especially with pimozide) is necessary.
- Alpha-2 agonists: Clonidine and guanfacine (selective options for mild to moderate tics or when ADHD is also present). Blood pressure·pulse monitoring is necessary.
- Other: VMAT2 inhibitors (such as deutetrabenazine·valbenazine) are used in some adult patients, but their indications and supporting evidence should be confirmed.
- Severe or treatment-resistant cases
- Deep Brain Stimulation (DBS): Considered when there is severe functional impairment and no response to conservative treatment. Surgical risks and long-term effects·complications should be carefully evaluated.
- Lifestyle management and precautions
- Do not punish or excessively focus attention on tics (this is important for preventing symptom worsening). Adequate rest·play·stress management are recommended.
- When selecting medications, receive an explanation of side effects (extrapyramidal symptoms, metabolic abnormalities, electrocardiogram changes, low blood pressure, etc.) and undergo regular monitoring.
- Comorbid conditions (ADHD, OCD, etc.) require separate diagnosis·treatment, and the treatment plan should be established in an integrated manner.
Checklist Before an Outpatient Visit (Including Items to Bring and Example Questions)
- Items to bring (recommended)
- A list of all medications·supplements currently being taken (including doses·times)
- Past medical history·surgical records and family history (whether tics/psychiatric disorders are present)
- Recent electrocardiogram (especially if pimozide is being considered)·blood pressure records (if possible)
- Videos of tic symptoms (mobile phone videos) and a symptom diary (recording episode frequency·type·aggravating factors·time of day)
- Effects on school·daily life (documents recording academic·social problems or teachers’ opinions)
- Information to tell the doctor in advance during the outpatient visit
- When symptoms began, their progression, and the degree of disruption to daily life
- Factors that worsen symptoms (stress, infection, etc.) and coping methods that have been tried
- Associated symptoms (attention problems, obsessive-compulsive symptoms, depression·anxiety)
- Items the doctor may ask about during the visit (it may be useful to make notes in advance)
- Changes when attempting to suppress or relieve tics
- History of medication side effects (medications used in the past·responses)
Examples of General Questions to Ask the Doctor
- "What treatment sequence do you recommend? Which would you recommend first, behavioral therapy (CBIT) or medication?"
- "What are the main side effects of the prescribed medication, and what monitoring items (blood pressure, weight, electrocardiogram, etc.) are needed?"
- "How should treatment for coexisting ADHD/obsessive-compulsive disorder be carried out at the same time?"
- "How long does it usually take to determine whether the treatment is effective?"
Examples of Disease-Specific Questions
- "My (or my child’s) tics worsen in stressful situations. What specific responses are helpful at home·school?"
- "Are there specialists (therapists) nearby who provide CBIT (or Habit Reversal Training), and how many sessions are needed and how long is the expected treatment period?"
(Note: Treatment choices and side-effect management vary depending on the individual situation. Please consult a specialist for an accurate diagnosis and treatment plan.)