Late-stage symptoms of dementia

Written by Zhang Hui
Neurology
Updated on September 01, 2024
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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 Tang Bo
Neurology
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What is dementia called?

The commonly mentioned senile dementia, also known as Alzheimer's disease, is the most common type of dementia. Its incidence generally increases in people over the age of 65 and continues to increase with age. It is a degenerative disease, with risk factors including age and gender, usually higher in women than in men. It is also related to educational level, whether there has been trauma, genetics, thyroid function, exposure to toxic substances, as well as vascular factors. Diabetes and depression are also risk factors for senile dementia.

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Written by Zhang Hui
Neurology
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Is senile dementia hereditary?

Dementia primarily refers to Alzheimer's disease, which mainly has two types: The first type is sporadic Alzheimer's disease, which does not have a clear familial history. It is caused by the degeneration and death of neurons due to various reasons, leading to certain clinical symptoms. This type of sporadic dementia does not have a genetic predisposition. The other type of dementia has a clear family history, where patients typically exhibit mutations in the APP gene, leading to increased secretion, which in turn causes the death of neurons and results in the symptoms of dementia. This familial type of dementia has a genetic predisposition. Dementia is a common condition in neurology and is the most common neurodegenerative disease. Currently, there are no effective treatments available. Family members must pay attention to caregiving, and patients can take cholinesterase inhibitors, which can improve symptoms to a certain extent.

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Written by Tang Bo
Neurology
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Mild manifestations of senile dementia

Mild dementia, especially in its early stages, often goes unnoticed by family members. The initial symptoms generally include being particularly forgetful. This particularly affects short-term memory; for example, a person might repeat what was just said or be repeatedly clumsy in daily tasks, sometimes losing keys or forgetting to turn off the stove while cooking. This might seem like a lack of concentration, but in reality, it is due to forgetfulness. Emotionally, individuals who were once lively might become indifferent or detached, sometimes showing signs of excitement or agitation. Behaviorally, there can be changes, such as previously generous individuals becoming stingy. Interests and hobbies that were once loved may no longer hold appeal, and individuals may become lethargic and less concerned with cleanliness and personal appearance.

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Written by Zhang Hui
Neurology
1min 10sec home-news-image

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
1min 5sec home-news-image

Causes of Dementia

At present, the specific causes and mechanisms of Alzheimer's disease are not very clear, but they are mainly divided into two categories. The first category is hereditary, where some Alzheimer's disease cases have a clear family history and involve some genetic mutations. These genetic mutations lead to the deposition of abnormal proteins within neurons, causing irreversible neuronal death, which is the main reason for familial Alzheimer’s disease. The second category is sporadic Alzheimer’s disease, for which no clear pathogenesis has been identified. Research suggests that factors such as oxidative stress, trauma, cerebrovascular disease, cerebral ischemia, and other factors, including metabolic conditions leading to dementia, are related to the occurrence of sporadic Alzheimer's disease. Therefore, the causes of Alzheimer’s disease include two main categories: the first is caused by genetic mutations, and the second is caused by various adverse factors leading to neuronal death.