How Is Parkinsons Disease Diagnosed
Diagnosing Parkinsons disease is sometimes difficult, since early symptoms can mimic other disorders and there are no specific blood or other laboratory tests to diagnose the disease. Imaging tests, such as CT or MRI scans, may be used to rule out other disorders that cause similar symptoms.
To diagnose Parkinsons disease, you will be asked about your medical history and family history of neurologic disorders as well as your current symptoms, medications and possible exposure to toxins. Your doctor will look for signs of tremor and muscle rigidity, watch you walk, check your posture and coordination and look for slowness of movement.
If you think you may have Parkinsons disease, you should probably see a neurologist, preferably a movement disorders-trained neurologist. The treatment decisions made early in the illness can affect the long-term success of the treatment.
Caregiving For People Living With Parkinsons
Caring for a loved one with PD can be a challenging job, especially as the disease progresses. Former caregivers of a loved one with PD suggest doing the following : Get prepared, Take care of yourself, Get help , Work to maintain a good relationship with your loved one, and Encourage the person with PD for whom you care, to stay active.
Preparing for caregiving starts with education. Reading this fact sheet is a good start. More resources are available to you in theResources section of this fact sheet. Early Parkinsonâs disease usually requires more emotional support and less hands-on care. It is a good time for family members/caregivers to educate themselves about the disease.
What Are The Symptoms Of Parkinsons Disease
Symptoms of Parkinsons disease and the rate of decline vary widely from person to person. The most common symptoms include:
Other symptoms include:
- Speech/vocal changes: Speech may be quick, become slurred or be soft in tone. You may hesitate before speaking. The pitch of your voice may become unchanged .
- Handwriting changes: You handwriting may become smaller and more difficult to read.
- Depression and anxiety.
- Sleeping disturbances including disrupted sleep, acting out your dreams, and restless leg syndrome.
- Pain, lack of interest , fatigue, change in weight, vision changes.
- Low blood pressure.
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Related Diagnosis: Lewy Body Dementia
Current research is helping to differentiate dementia related conditions in relationship to Parkinsonâs disease. Doctorâs use a 12-month arbitrary rule to aid in diagnosis. When dementia is present before or within 1 year of Parkinsonâs motor symptoms developing, an individual is diagnosed with DLB. Those who have an existing diagnosis of Parkinsonâs for more than a year, and later develop dementia, are diagnosed with PDD.
In the simplest terms, Lewy bodies are abnormal clumps of proteins that develop in nerve cells. Cholinesterase inhibitors, medications originally developed for Alzheimerâs disease, are the standard treatment today for cognitive DLB and PDD symptoms. Early diagnosis is important, as DLB patients may respond differently than Alzheimerâs disease patients to certain drug, behavioral, and dementia care treatments.
This challenging, multi-system disorder involving movement, cognition, behavior, sleep, and autonomic function requires a comprehensive treatment approach to maximize the quality of life for both the care recipient and their caregiver. It is very important to pay attention to symptoms of dementia and to search for an expert clinician who can diagnose the condition accurately.
The Nervous System & Dopamine
To understand Parkinson’s, it is helpful to understand how neurons work and how PD affects the brain .
Nerve cells, or neurons, are responsible for sending and receiving nerve impulses or messages between the body and the brain. Try to picture electrical wiring in your home. An electrical circuit is made up of numerous wires connected in such a way that when a light switch is turned on, a light bulb will beam. Similarly, a neuron that is excited will transmit its energy to neurons that are next to it.
Neurons have a cell body with branching arms, called dendrites, which act like antennae and pick up messages. Axons carry messages away from the cell body. Impulses travel from neuron to neuron, from the axon of one cell to the dendrites of another, by crossing over a tiny gap between the two nerve cells called a synapse. Chemical messengers called neurotransmitters allow the electrical impulse to cross the gap.
Neurons talk to each other in the following manner :
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Support For People With Parkinsons Disease
Early access to a multidisciplinary support team is important. These teams may include doctors, physiotherapists, occupational therapists, speech therapists, dietitians, social workers and specialist nurses. Members of the team assess the person with Parkinsons disease and identify potential difficulties and possible solutions.There are a limited number of multidisciplinary teams in Victoria that specialise in Parkinsons disease management. But generalist teams are becoming more aware of how to help people with Parkinsons disease.
Foster A Good Relationship
Lastly, maintaining your relationship and communication with the person with Parkinsonâs can be the most challenging and rewarding aspect of caregiving. As Parkinsonâs disease progresses, the roles change and the person with Parkinsonâs may go from being an independent head of the household to a very dependent person requiring a significant level of care. However, research shows that despite high levels of strain, caregivers with good quality relationships have reduced depression and better physical health. Remember, as a caregiver your service to your loved one is beyond measure in terms of love, depth of care, and concern.
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Some Other General Points
Stay as active as possible. Exercise regularly as much as you are able. This may not be possible when the condition is more advanced. However, it is something to consider when symptoms are not too bad. You may walk more slowly than before but a daily walk is good exercise and may help to loosen up stiff muscles. Well-meaning relatives or friends may tell you to rest and take things easy. However, as much as possible and for as long as possible, resist the temptation for others to do things for you just because it may be quicker.
Constipation is common in people with PD. Help to reduce the chance of this by having lots to drink and eat plenty of vegetables, fruit, and foods high in fibre. Exercise can also improve constipation. Sometimes laxatives may be needed to treat constipation.
Some medicines taken for other conditions can interfere with dopamine and make PD worse. These may be prescribed for such things as mental illness, sickness, vertigo and dizziness. Check with your doctor if you are unsure about any medicines that you take.
Driving. If you are a driver you should tell the DVLA and your insurance company if you develop PD. Your insurance may be invalid if you do not. Depending on the severity of symptoms and the medicines that you are taking, you may still be allowed to drive following a medical assessment.
Diagnosis And Management Of Parkinsons Disease
There are no diagnostic tests for Parkinsons. X-rays, scans and blood tests may be used to rule out other conditions. For this reason, getting a diagnosis of Parkinsons may take some time.
No two people with Parkinsons disease will have exactly the same symptoms or treatment. Your doctor or neurologist can help you decide which treatments to use.
People can manage their Parkinsons disease symptoms through:
- seeing a Doctor who specialises in Parkinsons
- medication
- multidisciplinary therapy provided for example, by nurses, allied health professionals and counsellors
- deep brain stimulation surgery .
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Learn More About Parkinsons Disease
Parkinsons Disease: The Essentials
If youre new to Parkinsons disease and would like a good overview to help you better understand the disease, please view our Parkinsons Disease: The Essentials presentation. Its a great place to get started with reliable and concise information.
Causes
The exact cause of Parkinsons is still unknown, but there is an enormous amount of research being done to learn more. This research has led scientists to formulate a number of theories on the cause of this disease.
Diagnosing
While there is no definitive test that can be taken to determine whether a person has Parkinsons disease, movement disorder specialists look for symptoms and use brain imaging technology to accurately diagnose Parkinsons.
Symptoms
Even though Parkinsons is classified as a movement disorderand its motor symptoms are the most discussed and well-knownthere are many non-motor symptoms that display in people with Parkinsons as well.
Treatments
As of today, there is no cure for Parkinsons disease. But there are many ways in which the disease can be treated to make symptoms more manageable.
Living With Parkinsons
What You Can Do
As of 2021, there is no definite cure for Parkinsons disease. There is also no definite known cause. Its likely due to a combination of an individuals susceptibility and environmental factors. Most cases of Parkinsons disease happen without a genetic link.
According to research published in 2012, only report having a family member with the disease. Many toxins are suspected and have been studied, but no single substance can be reliably linked to Parkinsons.
However, research is ongoing. Its estimated that
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How Is Parkinson Disease Diagnosed
Parkinson disease can be hard to diagnose. No single test can identify it. Parkinson can be easily mistaken for another health condition. A healthcare provider will usually take a medical history, including a family history to find out if anyone else in your family has Parkinson’s disease. He or she will also do a neurological exam. Sometimes, an MRI or CT scan, or some other imaging scan of the brain can identify other problems or rule out other diseases.
What Is The Treatment For Parkinson’s Disease
There is currently no treatment to cure Parkinson’s disease. Several therapies are available to delay the onset of motor symptoms and to ameliorate motor symptoms. All of these therapies are designed to increase the amount of dopamine in the brain either by replacing dopamine, mimicking dopamine, or prolonging the effect of dopamine by inhibiting its breakdown. Studies have shown that early therapy in the non-motor stage can delay the onset of motor symptoms, thereby extending quality of life.
The most effective therapy for Parkinson’s disease is levodopa , which is converted to dopamine in the brain. However, because long-term treatment with levodopa can lead to unpleasant side effects , its use is often delayed until motor impairment is more severe. Levodopa is frequently prescribed together with carbidopa , which prevents levodopa from being broken down before it reaches the brain. Co-treatment with carbidopa allows for a lower levodopa dose, thereby reducing side effects.
In earlier stages of Parkinson’s disease, substances that mimic the action of dopamine , and substances that reduce the breakdown of dopamine inhibitors) can be very efficacious in relieving motor symptoms. Unpleasant side effects of these preparations are quite common, including swelling caused by fluid accumulation in body tissues, drowsiness, constipation, dizziness, hallucinations, and nausea.
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What Are The Symptoms Of Parkinson Disease
Parkinson disease symptoms usually start out mild, and then progressively get much worse. The first signs are often so subtle that many people don’t seek medical attention at first. These are common symptoms of Parkinson disease:
- Tremors that affect the face and jaw, legs, arms, and hands
- Slow, stiff walking
How Does Parkinsons Disease Affect The Brain
The part of the brain that is affected is called the basal ganglia, which functions like the autopilot of your brain, facilitating subconscious movements. Because PD causes the brain cells in this deep circuitry to deteriorate, patients natural movements become slow and stiff. Many patients describe feeling as if they had aged overnight.
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Causes Of Parkinson’s Disease
Parkinson’s disease is caused by a loss of nerve cells in part of the brain called the substantia nigra. This leads to a reduction in a chemical called dopamine in the brain.
Dopamine plays a vital role in regulating the movement of the body. A reduction in dopamine is responsible for many of the symptoms of Parkinson’s disease.
Exactly what causes the loss of nerve cells is unclear. Most experts think that a combination of genetic and environmental factors is responsible.
And Speaking Of Timely Parkinsons Disease Diagnosis
Turns out its not just selfies and videos that can help with diagnosing Parkinsons disease.
More and more, people are using speech-activated smart devices, such as Alexa, Apple Watch, and Google Voice Assistant, to accomplish everyday tasks. Could these devices analyze our speech and voices to alert us if we show early warning signs of Parkinsons disease?
Recent work by Rochester researchers suggests its entirely possible. Wasifur Rahman, Sangwu Lee, Md. Saiful Islam, and other students in Hoques lab published findings in the Journal of Medical Internet Research that show how an online tool can be used to help screen almost anyone anywhere for Parkinsons disease remotely using video- or audio-enabled speech tasks.
Taken together, the Rochester researchers efforts are contributing to a future in which equity and access to neurological care is as ubiquitous as owning a smart phone or other internet-enabled device.
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Discuss With Your Physician
Non-motor symptoms can sometimes be difficult to recognize. Therefore, it is important to make your doctor aware of them.
One useful resource is the PD NMS Questionnaire. You can use this to record your symptoms and discuss them with your doctor.
Dr. Ron Postuma, whose research was funded by donations to the Parkinson Canada Research Program, has also developed tools to help people with Parkinsons and their physicians identify and manage non-motor symptoms.
Drugs And Medication Used To Treat Parkinsons Disease
A number of different drugs can be used to treat Parkinsons.
Levodopa
Levodopa is the most common treatment for Parkinsons. It helps to replenish dopamine.
About 75 percent of cases respond to levodopa, but not all symptoms are improved. Levodopa is generally given with carbidopa.
Carbidopa delays the breakdown of levodopa which in turn increases the availability of levodopa at the blood-brain barrier.
Dopamine agonists
Dopamine agonists can imitate the action of dopamine in the brain. Theyre less effective than levodopa, but they can be useful as bridge medications when levodopa is less effective.
Drugs in this class include bromocriptine, pramipexole, and ropinirole.
Anticholinergics
Anticholinergics are used to block the parasympathetic nervous system. They can help with rigidity.
Benztropine and trihexyphenidyl are anticholinergics used to treat Parkinsons.
Amantadine
Amantadine can be used along with carbidopa-levodopa. Its a glutamate-blocking drug . It offers short-term relief for the involuntary movements that can be a side effect of levodopa.
COMT inhibitors
Catechol O-methyltransferase inhibitors prolong the effect of levodopa. Entacapone and tolcapone are examples of COMT inhibitors.
Tolcapone can cause liver damage. Its usually saved for people who do not respond to other therapies.
Ectacapone does not cause liver damage.
Stalevo is a drug that combines ectacapone and carbidopa-levodopa in one pill.
MAO-B inhibitors
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Surgical Treatment For Parkinsons
This is advised when the disease progresses and the medications are no longer controlling the symptoms of PD adequately.
- As the disease progresses, Levodopa still works, but the brains response to the medication becomes less predictable. Levodopa may take longer to kick in and may wear off earlier, requiring patients to take medication more frequently during the day. Higher doses of levodopa are associated with abnormal involuntary movements, known as dyskinesias . Unpredictable medication effect results in OFF time when patients feel stiff, rigid, stuck, frozen, slow, or fatigued, compared to ON time when movements are smooth and closer to normal.
- Treatment options as the disease progresses include taking levodopa more frequently making the medication last longer by adding medications to reduce the metabolism of levodopa, or dopamine adding or changing to long-acting forms of levodopa , or adding or changing to long-acting forms of dopamine agonist . Amantadine can be added to reduce dyskinesia. As these options are being considered and implemented, its time to consider deep brain stimulation surgery .
- Deep brain stimulation surgery is FDA-approved for the treatment of motor complications in Parkinsons disease and is not experimental. DBS is not a last-resort treatment. It has been shown that DBS is more beneficial when performed earlier in the course of the disease compared to waiting for disability.
How Does Alcohol Affect Parkinsons Symptoms
In general, alcohol can be harmful to people with chronic conditions. According to the Centers for Disease Control and Prevention , overconsuming alcohol can be a long-term risk factor for a weakened immune system, learning and memory problems, high blood pressure, digestive issues, and various types of cancer. When looking specifically at Parkinsons symptoms, however, reports differ on how alcohol and PD may be linked.
The type of alcoholic beverage consumed may affect whether drinking has an impact on PD. A 2013 study found that the risk for developing Parkinson’s disease appeared to increase depending on the amount of liquor consumed, although no link was conclusively found between drinking wine and the development of PD.
In terms of how long-term alcohol use affects the risk of PD, one study published in 2013 followed people who had been admitted to the hospital with alcohol use disorders for up to 37 years. The study authors found that a history of alcohol abuse increased the risk of admission into the hospital for Parkinsons for both men and women. The study authors suggested that chronically drinking too much alcohol can have neurotoxic effects on dopamine, the neurotransmitter in the brain that is relevant to Parkinson’s disease.
There may also be factors other than observable symptoms such as how alcohol interacts with your medication that are important to consider when making decisions about your lifestyle and drinking habits.
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