Neurology
Clinical reference
Parkinson's Disease
Parkinson's disease is progressive neurodegeneration (dopaminergic neurons). Motor triad: tremor at rest, rigidity, bradykinesia. Falls, dysphagia, autonomic dysfunction, dementia (later).
Parkinson's disease
PD
parkinsonism
Parkinson disease
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What this condition is
Parkinson's disease (PD) is a type of movement disorder. It happens when nerve cells in the brain don't produce enough of a brain chemical called dopamine. Sometimes it is genetic, but most cases do not seem to run in families. Exposure to chemicals in the environment might play a role.Symptoms begin gradually, often on one side of the body. Later they affect both sides. They include:Trembling of hands, arms, legs,…
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Parkinson's Disease
Parkinson's disease (PD) is a type of movement disorder. It happens when nerve cells in the brain don't produce enough of a brain chemical called dopamine. Sometimes it is genetic, but most cases do not seem to run in families. Exposure to chemicals in the environment might play a role.Symptoms begin gradually, often on one side of the body. Later they affect both sides. They include:Trembling of hands, arms, legs,…
Lewy Body Dementia
What is Lewy body dementia (LBD)?Lewy body dementia (LBD) is one of the most common types of dementia in older adults. Dementia is a loss of mental functions that is severe enough to affect your daily life and activities. These functions include:MemoryLanguage skillsVisual perception (your ability to make sense of what you see)Problem solvingTrouble with everyday tasksThe ability to focus and pay attentionWhat are t…
Movement Disorders
Movement disorders are neurologic conditions that cause problems with movement, such as:Increased movement that can be voluntary (intentional) or involuntary (unintended)Decreased or slow voluntary movementThere are many different movement disorders. Some of the more common types include:Ataxia, the loss of muscle coordinationDystonia, in which involuntary contractions of your muscles cause twisting and repetitive m…
Tremor
What is a tremor?A tremor is a neurological condition that includes shaking or trembling movements in one or more parts of your body. It most often affects the hands. But it can also affect the arms, legs, head, vocal cords, and torso (trunk). A tremor is involuntary, meaning that you cannot control it. It happens because of muscle contractions.A tremor may come and go, or it may be constant. It can happen on its ow…