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Lewy Body

What is Lewy Body Dementia?

Lewy Body dementia, sometimes called Dementia with Lewy Bodies was discovered by Frederich Lewy in the early 1900’s.

It is characterised by abnormal deposits of protein in the brain. The protein deposits are called Lewy Bodies.

The deposits interfere with chemicals in the brain which subsequently impacts various functions, such as thought/memory, movement, behaviour and mood. These proteins also interfere with neurotransmitters (neurons which carry signals) causing the neurons (brain cells) to die.

Average survival from diagnosis is between 5 to 7 years but in some cases this can range from 2 to 20 years. Unlike Alzheimer’s, Lewy Body dementia is not usually hereditary (passed down through families).

Symptoms

As with other types of dementia, symptoms can be similar and generally worsen as the condition progresses.

  • Poor attention spam or ability to concentrate
  • Issues with reasoning or problem solving
  • Poor depth perception or visual judgement
  • Visual hallucinations – this happens in a large number of cases and generally occurs early on in Lewy Body Dementia
  • Depression, anxiety and low mood
  • Sleeping troubles
  • Restless leg syndrome (an overwhelming urge to move your legs)
  • Changes in certain automatic functions (such as heat/cold sensitivity and poor sense of smell)

Diagnosis

Early symptoms of Lewy Body Dementia may present similar to Alzheimer’s and the person with the condition may not be fully aware that they are displaying early symptoms. Generally diagnosis comes from various assessments. People familiar with the patient play an important role as they will be aware what ‘normal behaviour’ generally looks like. Cognitive and memory tests can be performed along with blood tests (to rule in or out other conditions). As with any conditions, if you or someone you know is displaying symptoms of any type of illness or you or they are concerned please contact your GP immediately.