How is dementia diagnosed?
A healthcare provider can perform tests on attention, memory, problem solving and other cognitive abilities to see if there is cause for concern. A physical exam, blood tests, and brain scans like a CT or MRI can help determine an underlying cause or rule out other health issues.
How is dementia treated?
Treatment of dementiadepends on the underlying cause and the progression of the disease. There are prescription drugs approved by the U.S. Food and Drug Administration (FDA) that temporarily ease some symptoms and others that can slow the progression of the disease. Medications don’t work for everyone, and they may lose effectiveness over time. Most FDA-approved drugs work best for people in the early or middle stages of dementia.
What are the most common types of dementia?
Alzheimer’s Disease
This is the most common cause of dementia, accounting for 60 to 80 percent of cases. It is caused by specific changes in the brain. The trademark symptom is trouble remembering recent events, such as a conversation that occurred minutes or hours ago, while difficulty remembering more distant memories occurs later in the disease. Other concerns like difficulty with walking or talking or personality changes also come later. Family history is the most important risk factor. Having a first-degree relative with Alzheimer’s disease increases the risk of developing it by 10 to 30 percent.
Vascular Dementia
About 10 percent of dementia cases are linked to strokes or other issues with blood flow to the brain. Diabetes, high blood pressure and high cholesterol are also risk factors. Symptoms vary depending on the area and size of the brain impacted. The disease progresses in a step-wise fashion, meaning symptoms will suddenly get worse as the individual gets more strokes or mini-strokes.
Lewy Body Dementia
In addition to more typical symptoms like memory loss, people with this form of dementia may have movement or balance problems like stiffness or trembling. Many people also experience changes in alertness including daytime sleepiness, confusion or staring spells. They may also have trouble sleeping at night or may experience visual hallucinations (seeing people, objects or shapes that are not actually there).
Fronto-temporal Dementia
This type of dementia most often leads to changes in personality and behavior because of the part of the brain it affects. People with this condition may embarrass themselves or behave inappropriately. For instance, a previously cautious person may make offensive comments and neglect responsibilities at home or work. There may also be problems with language skills like speaking or understanding.