Appointment with a Psychiatrist: Dementia and Other Cognitive Disorders

Description of Clinical Symptoms
Dementia and other cognitive disorders are characterized by a progressive decline in cognitive functions, such as memory, thinking, speech, and the ability to perform daily tasks. These conditions arise due to brain damage or degeneration, significantly affecting the quality of life for patients and their families.
The clinical symptoms of cognitive disorders depend on the disease’s stage and type but can be categorized into key cognitive and behavioral impairments:

  1. Memory Loss
    • One of the earliest and most noticeable symptoms. Patients forget recent events, names, dates, and important details.
    • In later stages, patients may forget close family members and significant life events.
  2. Impairments in Thinking and Judgment
    • Difficulty making decisions and planning daily tasks.
    • Loss of the ability to think logically and solve even simple problems.
  3. Speech and Perception Disorders
    • Difficulty finding words, loss of the ability to understand spoken language or read.
    • In advanced stages, patients may stop speaking entirely.
  4. Behavioral and Personality Changes
    • Aggression, irritability, apathy, or depression.
    • Social withdrawal and loss of interest in previously enjoyed activities.
  5. Disorientation in Time and Space
    • Patients may get lost even in familiar places or fail to recognize the current date or year.
      In advanced stages of dementia, patients become completely dependent on external care, lose the ability to perform self-care tasks, and require round-the-clock assistance.

Prevalence of the Disease
Dementia and other cognitive disorders are a major global health concern, especially due to increasing life expectancy. According to the World Health Organization (WHO):

  • Currently, more than 55 million people worldwide suffer from dementia.
  • Approximately 10 million new cases are diagnosed each year.
  • By 2050, the number of dementia patients is expected to triple.
    The most common type of dementia is Alzheimer’s disease, accounting for about 60–70% of all cases. Other types include vascular dementia (around 20%), dementia with Lewy bodies, and frontotemporal dementia.
    Dementia is most prevalent among individuals over 65, although early-onset dementia can develop between ages 40 and 50.

Risks and Predispositions to the Disease
The development of dementia and other cognitive disorders results from a combination of genetic, biological, and environmental factors.

Genetic Factors

  • Genetic mutations, such as APOE-e4, are associated with an increased risk of Alzheimer’s disease.
  • A family history of cognitive disorders raises the likelihood of developing dementia.

Age

  • Aging is the most significant risk factor. After 65, the risk of dementia doubles every five years.

Comorbidities

  • Hypertension, diabetes, hypercholesterolemia, and obesity increase the risk of vascular dementia.
  • Traumatic brain injuries can lead to post-traumatic dementia.

Lifestyle

  • Smoking, alcohol abuse, physical inactivity, and poor nutrition elevate the risk of cognitive disorders.
  • Chronic stress and depression are also key contributors.

Education and Cognitive Activity

  • People with higher education levels and an intellectually active lifestyle have a lower risk of dementia due to cognitive reserve.

Treatment Methods
Currently, there is no cure for dementia. However, timely treatment can slow disease progression, improve quality of life, and support cognitive functions. Treatment includes pharmacological therapy and psychosocial approaches.

Pharmacological Treatment

  1. Cholinesterase Inhibitors:
    • Drugs like donepezil, rivastigmine, and galantamine are used to treat mild to moderate Alzheimer’s disease. They enhance nerve signal transmission and slow cognitive decline.
  2. Memantine:
    • Used for moderate to severe dementia. It regulates glutamate activity, protecting brain cells from damage.
  3. Symptomatic Treatment:
    • Antidepressants (sertraline, mirtazapine) to manage depression.
    • Antipsychotics (risperidone, olanzapine) to address aggression and psychotic symptoms.
    • Sedatives to control anxiety and sleep disturbances.

Psychosocial Approaches

  1. Cognitive Stimulation:
    • Exercises aimed at improving memory, thinking, and speech.
  2. Rehabilitation Therapy:
    • Physical activity, occupational therapy, and music therapy help maintain daily skills and reduce stress.
  3. Behavioral Therapy:
    • Used to manage aggression and other behavioral disturbances.
  4. Family Psychoeducation:
    • Training relatives in caregiving methods and patient support.

The Role of a Psychiatrist in Diagnosis and Treatment
Psychiatrists play a crucial role in diagnosing, treating, and managing patients with dementia and other cognitive disorders. Their primary functions include:

  1. Diagnosis:
    • Conducting clinical interviews and using neuropsychological tests to evaluate memory, thinking, and cognitive functions (e.g., MMSE and MoCA tests).
    • Referring patients for neuroimaging studies (MRI, CT) to detect brain damage.
  1. Treatment Planning:
    • Developing individualized treatment plans, including medication and non-medication approaches.
  1. Monitoring Patient Condition:
    • Regular follow-ups to assess disease progression and adjust treatment.
  1. Support for Family and Caregivers:
    • Educating relatives about caregiving strategies and providing emotional support.
  1. Preventing Cognitive Decline:
    • Advising patients on lifestyle modifications, managing comorbidities, and engaging in cognitive activities.

Conclusion
Dementia and other cognitive disorders represent a significant medical and social challenge, particularly in aging populations. Early symptom recognition and timely intervention are critical for slowing disease progression and improving patients’ quality of life.
Effective treatment combines pharmacological therapy to manage symptoms and psychosocial approaches to sustain cognitive functions. Psychiatrists play a central role in diagnosing and treating dementia, coordinating with other specialists, and supporting both patients and their families. A comprehensive treatment approach helps patients maintain independence and functionality for as long as possible.

Appointment with a Psychiatrist: If you need to consult a psychiatrist or seek psychiatric help regarding dementia and other cognitive disorders, choose a specialist and book an appointment. During the consultation, our psychiatrist will help identify the mental health issue and find suitable solutions.

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About the Author: Eduard Maron

Dr. Eduard Maron Psühhiaater Tartu Ülikooli psühhofarmakoloogia professor, Londoni Imperial College’i külalisprofessor Rohkem kui 20 -aastane kliiniline kogemus (sh. meeleolu-, ärevushäirete, ATH valdkonnas), neist 5 Ühendkuningriigis. Rohkem kui 70 teaduspublikatsiooni autor