Types of dementia
In the following, the forms of the vascular dementia and the lewy bodies dementia are illuminated, which are next in to the dementia form "Alzheimer's" the most frequently appearing dementia forms. Next to these diseases, there are also dementia forms which emerge in combination with other diseases.
Vascular dementia and Lewy body dementia
In the vascular dementia, a circulatory interference in the brain of patients exists, which can be released above all high blood pressure. If the brain is not on the basis of deficient nourishment resitant enough, it can come here to a damage. Next to the high blood pressure, also circulation interferences can be the cause whereby the brain becomes lower furnished in certain areas. Nerve cells die at these places and it isn't possible to regenerate again. Frequently these circulation interferences are caused by the clogging of blood vessels on the basis of deposits. At the same time is to be assessed, this can lead to the factors that are quite similar to a vascular dementia to which in the origin of the Alzheimer´s disease brain onfarcts emerging small in occurring circulation interferences. For this reason, this form of dementia is designated also a multi-infarct dementia. The brain tries in the case of small cerebral infarctions to repair the damage independently. To this, the wounds become sharpened locked through a type, what leads however again to deposits in the brain, as soon as this solves sharpened itself. The more deposits form, the more small infarcts are released and emerges it a kind of chain reaction, which damages the brain in addition.
In contras is to be said that inAlzheimer's disease, dementia patients don't have embracing memory loss, but rather sooner a slowdown of the think achievement. In addition frequently also a variation of the own personality takes place. To this behavior striking features, i.e. the patient reacted a situation unsuitable, belong has a slighter impeding threshold and is more slowly in the execution of its activities.
In conclusion is to be said that in contrast to Alzheimer's desiase the vascular dementia can be avoided. To this, a healthy nourishment, low cholesterols, blood pressure value is decisively, as well as sufficiently movement decisively. Disadvantageously that is emerges to be sure the illness discovered actually already to late to stop the process effectively.
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Comments on the topic: Alzheimer's disease and vascular dementia, a video from the series: Theme Week 'future of Age' by vitanet.de in cooperation with the Evangelical Geriatric Center Berlin
Lewy body dementia
The Lewy body dementia is very similar to the symptoms of Alzheimer's disease and which can be used and treated in Alzheimer's disease with the drugs. In Lewy body dementia is commonplace, temporary dropouts. Lewy bodies are protein deposits in the brain and influence to the functionality of the brain, which can be explained temporarily from typesetter of the patients. These interferences can also restrict the movement of patients and can lead to falling. Also the appearance of hallucination or unconsciousness is possible.
The following image shows changes in the brains of Lewy body dementia patients in comparison with changes in the brain of Alzheimer's patient.
Dementia in combination with other diseases
The disease and impairment of the brain don't occurs only in pure dementia or Alzheimer's disease, but also as a byproduct of other serious diseases. Here are the most common forms:
- Dementia in Huntington's disease
- Dementia in Parkinson's
- Dementia in Creutzfeldt Jakob
- Dementia in Pick
- Dementia due to alcoholism (Korsakoff's syndrome)
- Dementia in HIV
Dementia in Huntington's disease
The dementia in Huntington's disease isn't a dementia type which can appear already at the age 30. It first appears through a slow process in the retirement age. Dementia causes a degeneration of the brain that is shrinking the brain mass. Huntington's disease is a hereditary disease of the nervous system of those affected . It leads to the outbreak in 15 to 20 years to the death of the patient. At the beginning of the disease, involuntary movements and muscle disorders occur (eg, grimaces on the face). The higher the more the disease progresses, patients have less control of their bodies. In the final stage, patients often have increased symptoms dementia, a disorder with speech and cognitive abilities. So far there is no cure for this disease.
Dementia in Parkinson's
A patient with the Parkinson's disease has a restricted movement capacity and muscle tremor. If there is a specific gravity of the disease or the disease has progressed very far, it can also occur in Parkinson's disease and dementia. The Parkinson's Disease is caused by the death of certain areas of the brain that control motion functions. It is likely therefore that in the course of the disease, the damage in the brain is larger and provide additional support for forms of dementia. The requirements to receive a dementia, of course, are especially in elderly Parkinson's patients.
The following figure shows a comparison study of the forms of dementia symptoms in Parkinson's disease, Lewy bodies and Alzheimer's. As can be seen from the study, the symptoms in the two previous forms of dementia are quite similar, while the Alzheimer's disease differs from it.
Dementia in Creutzfeldt-Jakob
The Dementia in Creutzfeldt-Jakob disease is a very quickly stepping and life-threatening dementia form. It leads within 6 months until 2 years maximum to death of the patient. The Creutzfeldt-Jakob disease is a virus disease which is designated as the cow delusion illness in humans. A protein interference exists leads in the illness, which next to other symptoms in the body, in addition that the brain of the patient is softened into a kind of sponge.The instruct deposits are designated as prions. No medicinal treatment, with which ahead step or the healing of the illness that could be reached, and/or exists until now.
Dementia in Pick
This type of dementia is solved from through a death of brain cell in the forehead area temple area. In this area of the brain, the social behavior and the emotions of the person are controlled. It can come therefore with the advancing of the illness to the personality variation and behavior striking feature of the patient. This can't properly assess a situation and react inappropriately or doesn't think about his reaction. As a byproduct of aggression or depression occurs.
The memory loss isn't stamped in this form of the dementia like in the other forms. It should be noted however, that this type of the disease can emerge also frequently with persons in the middle age and not until the retirement age and the patients must be treated based on its behavior frequently stationary. A final diagnosis of whether that is able to concern determined the packed illness first, after death of the patient. It is assumed however that the affected area of the brain suffers from a disturbance of blood flow and glucose metabolism.
Dementia due to alcoholisum (Korsakoff's syndrome)
Most people have probably already experienced in their lives, that can introduce excessive alcohol consumption at a ceremony to ensure that the next morning memory gaps are present. These are usually temporary, i.e. the consumer then can remember after a certain time. This alcohol consumption takes place however years and the person can as an alcoholic designated become, so that will permanently damage the brain. The resulting dementia is due to external influences, self-inflicted by the patient. Those affected lose more and more the ability to remember facts and to have behavior problems. At the same time it occurs frequently that the person concerned if they can not remember, instead of telling stories or certain stories always repeat without them they can't remember. The parties also lack the ability to increasingly find their way to or react with normal emotions. This form of dementia can not be completely cured, since the brain that is damaged by the years of abuse. If the patient makes a withdrawal treatment and surrounded his diet, it can happen slight improvements, but no miracle. It is likely that, particularly the behavior of patients may be due to the sobriety again as "normal" by default.
Dementia in HIV
The development of the HIV immunodeficiency disease can occur in some cases, the origin can be medically classified properly yet.