In simple words: Lewy body dementia is a type of dementia that causes problems with thinking, memory, movement, and behavior.It happens because of abnormal clumps of protein, called Lewy bodies, that build up in the brain. People with Lewy body dementia may experience changes in alertness, see things that aren't there, have trouble moving, and act out their dreams while sleeping.

Dementia with Lewy bodies, also known as Lewy body dementia, is a progressive neurocognitive disorder characterized by the accumulation of abnormal protein deposits called Lewy bodies within brain cells. These Lewy bodies disrupt the brain's normal functioning, leading to a range of symptoms that affect cognition, behavior, mood, and movement.The cognitive symptoms include fluctuating attention and alertness, hallucinations (often visual), impaired executive function (planning, problem-solving), and memory loss.Movement difficulties similar to Parkinson's disease, such as rigidity, slow movement, and tremors, are common. Other symptoms include sleep disturbances (acting out dreams, excessive daytime sleepiness), autonomic dysfunction (problems with blood pressure, bowel, or bladder control), and sensitivity to antipsychotic medications.

Example 1: A 70-year-old male presents with fluctuating alertness, visual hallucinations, and difficulty with planning and organizing. He also exhibits some rigidity and slowness of movement.After a thorough evaluation, he is diagnosed with Lewy body dementia., A 65-year-old female experiences vivid visual hallucinations, memory problems, and falls.She also has REM sleep behavior disorder.Her symptoms suggest Lewy body dementia, and further examination confirms the diagnosis., A 75-year-old patient with Parkinson's disease develops increasing cognitive difficulties, including problems with attention, visuospatial skills, and executive function, along with visual hallucinations.These changes indicate the development of Lewy body dementia.

Documentation should include detailed clinical findings related to cognitive function (e.g., memory, attention, executive function), presence of hallucinations, motor symptoms (e.g., rigidity, tremors, gait disturbances), sleep disturbances (e.g., REM sleep behavior disorder), autonomic dysfunction, and response to medications.A thorough neurological examination and cognitive assessment are essential.