Animal models[ edit ] The pathophysiology of delirium is not well understood and a lack of animal models that are relevant to the syndrome has left many key questions in delirium pathophysiology unanswered. Earliest rodent models of delirium used an antagonist of the muscarinic acetylcholine receptors, atropine, to induce cognitive and EEG changes similar to delirium. Similar anticholinergic drugs such as biperiden and scopolamine have also produced delirium-like effects.
Information for patients and carers What is Semantic Dementia? Semantic dementia refers to a progressive loss of the ability to remember the meaning of words, faces and objects, which results from shrinkage of the temporal lobes of the brain.
What are the symptoms? Language The initial problem is often with words. Sufferers may have difficulty remembering the names for things and may use words incorrectly e. Sufferers may also have difficulty understanding what is said. Recognition of faces and objects It is common for sufferers to have difficulty recognising people whom they do not see regularly.
They may also develop difficulty in recognising things, for example, vegetables in the supermarket. Memory Sufferers do have a problem with memory, but it is particularly a certain type of memory: Memory in the sense of remembering to do things at the right time, remembering events and the way to the shops is often well preserved.
Personality and behaviour Sufferers may become inflexible, self centred and less concerned for the feelings of others.
They may become preoccupied with a few activities, adopt a fixed daily routine and like to do things at the same time each day. Apparent selfishness or awkwardness is not the result of deliberate wilfulness.
The sufferer may have some awareness of difficulties leading to frustration and irritability. In many ways the burden of the illness is on the carer rather than the patient.
Are there any physical changes? Sufferers typically remain physically well. Will the symptoms become worse?
The disease is progressive, so symptoms do worsen over time. However, there is wide variation in the speed of progression. Some people show little decline over the course of a year whereas others change more quickly.
Are there ways to help? Encouragement of pursuits in which the sufferer is successful can help to boost confidence and maintain independence.
Understanding is helped by doing. Encouraging and maintaining a variety of life experience will help to slow symptom progression. It can help understanding if words are put into context: At what age are people affected?
The condition most commonly affects people between 50 and 65, but can occur in both younger and older people. What is the cause? The disorder is a degenerative condition of the brain.1.
Explain what the term Dementia means 2. Describe the key functions of the brain that are affected by dementia 3.
Explain why depression, delirium and. the unit DEM , Dementia Awareness.
This exemplar evidence should be considered alongside the unit requirements, the Learning Outcomes and Assessment Criteria. This content has been selected by the OCR Chief External .
Front temporal dementia: Apathy, routines and obsessions, speech fluent intact, little insight, loos of social awareness, neglect of responsibilities, poor judgement and impaired reasoning. 9. Outline the risk factors for the most common causes of dementia The main factor is old age; over 80 years old it is more likely to develop dementia.
Fred Graham, Sandra Jeavons, Liz Miles and Elizabeth Beattie introduce The View From Here, an evidence-based online training package suitable for all Australian hospitals to use in preparing their staff to provide quality care for patients with dementia.
‘For what a tangled web we weave when first we practice to deceive.’ from Marmion by Sir Walter Scott. We may like to convince ourselves otherwise, but lies and deception are commonplace in ‘caring’ for people with dementia.
1 This moral dilemma is an area of considerable difficulty for many. What is Semantic Dementia? Semantic dementia refers to a progressive loss of the ability to remember the meaning of words, faces and objects, which results from shrinkage of the temporal lobes of the brain.