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Eight Facts about Lewy Body Dementia
Dementia with Lewy Bodies, or DLB, as it is commonly known in the UK, is a degenerative brain disease which shares symptoms with other conditions, such as Alzheimer’s and Parkinson’s disease. These can include problems with thinking, understanding and memory, as well as confusion, hallucinations, poor sleep and difficulties in movement including tremors, slow movement and stiffness.
1. It is a common type of dementia
Over 100,000 people in the UK and around 1.3 million in the US are affected by DLB
2. It’s not Alzheimer’s disease
Alzheimer’s disease is the most common form of dementia, and Lewy Body Dementia is the second. Different types of dementia have different signs and symptoms, but they often include long-term memory impairment, thinking memory loss and issues with problem-solving, decision-making and acquiring new skills, meaning that those affected need specialist dementia care.
People who have Lewy Body Dementia experience more hallucinations and problems with their movement than people living with Alzheimer’s disease. Cognition issues can be unpredictable, whereas, in Alzheimer’s, people tend to become more unsettled and anxious in the evenings, a symptom that is known as ‘sundowning‘.
3. Diagnosis is difficult
As with Alzheimer’s disease, the only truly definitive way to diagnose Dementia with Lewy Bodies is by postmortem biopsy, but a probable diagnosis can be made by considering the symptoms, interviewing family members and conducting tests such as MRI, CT scans and blood tests.
In addition to symptoms common to many forms of dementia, patients with DLB tend to have problems perceiving depth and can experience visual or auditory hallucinations. They can also suffer from paranoia or delusions and may exhibit symptoms such as tremors, difficulty walking and stiffness, also found in Parkinson’s disease (Parkinsonian symptoms).
Physical issues can include fainting spells, fluctuation in blood pressure and heart rate, and constipation. A diagnosis of Lewy Body Dementia may be made if a patient has dementia combined with several other symptoms.
4. Medications can be affected by the disease
Some drugs, particularly anti-psychotics that are frequently prescribed for patients with Parkinson’s and Alzheimer’s, can have negative effects on people living with DLB.
A neurological condition known as Neuroleptic Malignant Syndrome can develop, causing the patient to develop muscular rigidity, variable blood pressure, high fever and severe sweating. Trying to avoid this potential additional problem is one of the reasons why it is important to diagnose DLB as soon as possible.
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5. There are similarities with Parkinson’s disease
Many of the neuromuscular symptoms of Parkinson’s disease are also exhibited by people with Lewy Body Dementia, but in DLB, the cognitive symptoms begin earlier, often within 12 months of a misdiagnoisis of Parkinson’s.
6. Sleep can be affected
People with different types of dementia can experience sleep issues, but people with Dementia with Lewy Bodies are often affected by REM Sleep Behaviour Disorder. In this condition, there is often excessive movement, gesturing and speaking while in the rapid eye movement stage of sleep. Those affected appear to be acting out dreams that can be intense, violent and vivid.
If the person has care at home, their carer may observe that they sit up, kick out, flail their arms around or grab at things during sleep. Restful sleeping time is lost, and the person can be at risk of sustaining an injury during sleep.
7. It is unpredictable
With some types of dementia, such as Alzheimer’s disease, the symptoms are reasonably predictable, and a person’s abilities decline steadily over time, but people with DLB can exhibit erratic symptoms. People receiving elderly care or dementia care may become aggressive suddenly towards their carers which can be a traumatic experience that requires expert handling.
With one-to-one live-in care, it may be possible to isolate a particular cause for the worsening of symptoms, such as a change in medication or the development of an infection, and the symptoms may improve once the problem is remedied. However, quite often there is no obvious cause, and it seems that the unpredictability is simply due to the variable nature of the condition.
8. There is no cure
At present, there is no cure for Dementia with Lewy Bodies, and no way of preventing it from progressing. However, certain symptoms of the disease can be helped by medication, making the condition easier to manage. Cholinesterase inhibitors may be used to improve cognitive issues.
These promote brain cell function by affecting the neurotransmitter, acetylcholine. People with sleep problems caused by REM Sleep Behaviour Disorder are sometimes prescribed drugs such as clonazepam or melatonin, to help them to sleep more soundly. If the movement disorders of Parkinsonism are severe, these can be improved with levodopa.
People with Lewy Body Dementia can also benefit from occupational therapy, speech therapy and physiotherapy, depending on how their symptoms affect them. These interventions can help them to function better from day to day and to manage their condition more effectively.
Lewy Body Dementia is a degenerative brain disease that shares symptoms with other conditions, such as Alzheimer’s and Parkinson’s disease. These can include problems with thinking, understanding and memory, as well as confusion, hallucinations, poor sleep and difficulties in movement including tremors, slow movement and stiffness.
Dementia Care: Dealing With Dementia Behaviour Problems
Dementia in its mid-to-late stages and Alzheimer’s can present a whole spectrum of behaviours. It can make people feel lost, confused, anxious and frustrated, which can result in physical manifestations of these feelings, as well as angry outbursts and suspicious behaviour.
Dementia Care: What is Sundowning?
Sundowning is a distressing symptom that affects people in mid- to late-stage Alzheimer’s and other forms of dementia. Also known by the term ‘late-day confusion’, it refers to the agitation and confusion often experienced by those with dementia towards the end of the day – hence the term ‘sundowning’.
Dementia: How to Care for Ageing Parents
With an increasingly ageing population, many of us will have to face questions regarding the care of our parents at some point. For those who have a loved one with a diagnosis of dementia, the care considerations are far more complex.
Dementia Live-in Care: How to Choose a Provider
There are many things to consider when deciding on a live-in care provider for your loved one. The right support can help those with dementia to continue to live their lives as independently as possible. There are various details that you will want to check before selecting a provider so that you can find the best possible option for your family member.
Live-in Dementia Care or Care Homes: What’s the Difference?
People with dementia experience many problems, both with memory and with cognition. Alzheimer’s disease is the commonest form of dementia, but there are other types including vascular dementia and dementia with Lewy bodies. People with Parkinson’s disease can also develop dementia. Whatever your loved one’s specific diagnosis, if they are living with this condition, they are almost certain to need care and support as it progresses.
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