symptoms of dementia in the elderly

Written by Zhang Hui
Neurology
Updated on September 03, 2024
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The symptoms of dementia mainly include:

First, impaired memory function, where the patient’s memory loss is very noticeable. Initially, they may not remember recent events, and as the disease progresses, they may not remember past events, such as forgetting how many children they have or their children’s names.

Second, it mainly involves symptoms of impairment in other cognitive areas, such as visual spatial dysfunction, manifesting as not being able to find the bathroom at home, getting lost after going out, and not being able to find the way back home. Additionally, the patient's ability to understand, calculate, and judge will also be significantly impaired, and they cannot master previously learned knowledge and skills.

Third, in the late stages, some psychiatric symptoms appear, including visual and auditory hallucinations, and agitated behaviors such as hitting and cursing. Additionally, the patient may also experience some physical weakness, muscle atrophy, and incontinence.

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Written by Zhang Hui
Neurology
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early signs of dementia

Dementia in the elderly, mainly referring to Alzheimer's disease, is primarily characterized by a significant decline in the patient's memory and learning abilities. Of course, there are some prodromal symptoms before the onset of dementia. For example, patients might show no clinical signs of cognitive impairment or only display very slight memory decline. Patients might exhibit mild impairment in memory, a decrease in the ability to learn and retain new information, and mild impairments in other cognitive areas such as attention, executive function, language skills, and visuospatial abilities. However, these impairments are very slight and can go unnoticed by family members. Moreover, these mild impairments do not affect the patient's basic daily life abilities and do not reach the level of dementia. Patients can live independently and manage their routine daily tasks, which are mainly some of the early signs of dementia.

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Neurology
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Late-stage symptoms of dementia

In the later stages of dementia, symptoms become very severe. Patients experience significant impairment in memory function, forgetting not only recent events but also events from the past. Additionally, patients show obvious impairments in visuospatial abilities, having trouble locating the bathroom in their own home, and often getting lost when they go out. There is also a noticeable change in behavior, with patients exhibiting aggression, cursing, and inappropriate actions like urinating or defecating in random places. Some patients may experience recurrent visual and auditory hallucinations. As the disease progresses, elderly patients may eventually become bedridden for life, not interacting with anyone, remaining silent, and refusing to eat. They ultimately may die from complications such as lung infections, urinary tract infections, malnutrition, and bedsores. Therefore, the symptoms of dementia in its later stages are quite severe, with cognitive impairments, abnormal mental and behavioral symptoms, and various infections all posing serious threats to the health of the elderly.

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Written by Zhang Hui
Neurology
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Alzheimer's disease is also called dementia.

Alzheimer's disease, also known as dementia in the elderly, was first identified abroad and thus named after the discoverer, Alzheimer. It is one of the most common neurodegenerative diseases in neurology, with a very high incidence among people over 65 in China and worldwide. The disease mainly affects patients' cognitive functions. Initially, patients do not meet the criteria for dementia and primarily exhibit a decline in memory. As the disease progresses, the decline in memory worsens, and patients begin to forget both recent and past events. Additionally, they may experience impairments in visuospatial abilities, judgment, comprehension, and learning capabilities. In the later stages, psychiatric symptoms and personality changes may appear, such as visual hallucinations, shouting, and gesturing wildly, among various other clinical manifestations.

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Written by Zhang Hui
Neurology
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How is dementia diagnosed in the elderly?

Alzheimer's disease is a degenerative disease of the nervous system. The diagnosis of this disease mainly relies on the clinical manifestations of the patient, as well as some corresponding scales and some corresponding imaging examinations. In terms of examinations, it is necessary to check some neurofunctional scales, mainly cognitive function scales, common scales include some MMSE scales, and some MoCA scales. These scales are very important for diagnosing this disease. In addition, some imaging examinations need to be improved, mainly including cranial magnetic resonance imaging examinations. Cranial MRI can reveal atrophy in the patient's temporal lobe, hippocampus, and other areas, which also have an important reference value for the diagnosis of the disease. Moreover, an electroencephalogram can be performed to see some mild abnormalities, and lumbar puncture tests can also reveal some abnormally increased protein deposits.

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Written by Zhang Hui
Neurology
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symptoms of dementia in the elderly

The symptoms of dementia mainly include: First, impaired memory function, where the patient’s memory loss is very noticeable. Initially, they may not remember recent events, and as the disease progresses, they may not remember past events, such as forgetting how many children they have or their children’s names. Second, it mainly involves symptoms of impairment in other cognitive areas, such as visual spatial dysfunction, manifesting as not being able to find the bathroom at home, getting lost after going out, and not being able to find the way back home. Additionally, the patient's ability to understand, calculate, and judge will also be significantly impaired, and they cannot master previously learned knowledge and skills. Third, in the late stages, some psychiatric symptoms appear, including visual and auditory hallucinations, and agitated behaviors such as hitting and cursing. Additionally, the patient may also experience some physical weakness, muscle atrophy, and incontinence.