Wednesday, January 25, 2023

Does Parkinson’s Disease Cause Seizures

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How Is Parkinson Disease Treated

Parkinson disease can’t be cured. But there are different therapies that can help control symptoms. Many of the medicines used to treat Parkinson disease help to offset the loss of the chemical dopamine in the brain. Most of these medicines help manage symptoms quite successfully.

A procedure called deep brain stimulation may also be used to treat Parkinson disease. It sends electrical impulses into the brain to help control tremors and twitching movements. Some people may need surgery to manage Parkinson disease symptoms. Surgery may involve destroying small areas of brain tissue responsible for the symptoms. However, these surgeries are rarely done since deep brain stimulation is now available.

How Is Tremor Diagnosed

Tremor is diagnosed based on a physical and neurological examination and an individuals medical history. During the physical evaluation, a doctor will assess the tremor based on:

  • whether the tremor occurs when the muscles are at rest or in action
  • the location of the tremor on the body
  • the appearance of the tremor .

The doctor will also check other neurological findings such as impaired balance, speech abnormalities, or increased muscle stiffness. Blood or urine tests can rule out metabolic causes such as thyroid malfunction and certain medications that can cause tremor. These tests may also help to identify contributing causes such as drug interactions, chronic alcoholism, or other conditions or diseases. Diagnostic imaging may help determine if the tremor is the result of damage in the brain.

Additional tests may be administered to determine functional limitations such as difficulty with handwriting or the ability to hold a fork or cup. Individuals may be asked to perform a series of tasks or exercises such as placing a finger on the tip of their nose or drawing a spiral.

The doctor may order an electromyogram to diagnose muscle or nerve problems. This test measures involuntary muscle activity and muscle response to nerve stimulation.

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What Causes Parkinson Disease

Parkinson disease arises from decreased dopamine production in the brain. The absence of dopamine makes it hard for the brain to coordinate muscle movements. Low dopamine also contributes to mood and cognitive problems later in the course of the disease. Experts don’t know what triggers the development of Parkinson disease most of the time. Early onset Parkinson disease is often inherited and is the result of certain gene defects.

Potential Therapeutic Implications For Non

Parkinson

Current available therapies for treating NMS-PD include pharmaceutical therapies, exercise, and brain stimulation to improve various NMS-PD.88,89 Cognitive deficits contribute largely to the morbidity of NMS-PD and have remained without efficient therapy. AEDs have been proposed to prevent the cellular death and cognitive worsening associated with the presence of epileptic seizures in AD.90 In light of the aforementioned similarities between PD and AD constructs, we believe that the long-term impact and therapeutic implications of AEDs on the natural course of PD should indeed be adequately investigated through properly designed clinical trials in the future.

Many mechanisms of cognitive decline and other NMS-PD have been proposed in PD. These include progressive alpha-synuclein disease, affected neurotransmitter systems, synaptic changes, inflammation, mitochondrial dysfunction, genetic risk factors,91 white matter lesions,92 and network dysfunction.93,94 While studies in AD have begun to support the role of connectome dysfunction in accelerating cognitive decline through recurrent epileptic events, this possibility remains to be investigated in patients with PD. As such, properly designed studies should be conducted to better characterize these phenomena in this specific population.

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There Are Two Common Types Of Epileptic Seizures:

Generalised tonic-clonic seizures

Most of us are familiar with the kind of epileptic seizures we see on TV or in films. People become unresponsive, they fall to the ground, become stiff and their whole-body shakes in a convulsion.

Generalised tonic-clonic seizures are hard to miss. But this is not what most epileptic seizures look like.

Focal onset seizures

Most epileptic seizures in people with dementia are known as focal onset seizures. These can involve brief periods of increased amnesia or unresponsiveness. We see involuntary repeating movements, often of the hands and arms, or of the face .

Understandably, the latter are more easily missed, especially as the person affected will often quickly be back to normal afterwards..

How Is Psp Different From Parkinson’s Disease

PSP is often misdiagnosed as Parkinsons disease, especially early in the disorder, as they share many symptoms, including stiffness, movement difficulties, clumsiness, bradykinesia , and rigidity of muscles. The onset of both diseases is in late middle age. However, PSP progresses more rapidly than Parkinsons disease.

  • People with PSP usually stand exceptionally straight or occasionally tilt their heads backward . This is termed axial rigidity. Those with Parkinson’s disease usually bend forward.
  • Problems with speech and swallowing are much more common and severe in PSP than in Parkinson’s disease and tend to show up earlier in the disease.
  • Eye movements are abnormal in PSP but close to normal in Parkinson’s disease.
  • Tremor is rare in PSP but very common in individuals with Parkinsons disease.

Although individuals with Parkinson’s disease markedly benefit from the drug levodopa, people with PSP respond minimally and only briefly to this drug.

People with PSP show accumulation of the protein tau in affected brain cells, whereas people with Parkinsons disease show accumulation of a different protein called alpha-synuclein.

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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 Type Of Pain Occurs With Parkinsons Disease

Causes of Parkinsons Disease | Causes Of Tremors

The types of pain associated with Parkinsons include: aching or burning pain from muscles or skeleton, sharp pain from a nerve or nerve root, numbness or pins and needles pain also radiating from a nerve or nerve root, pulsing or aching pain that results from tightness or ongoing twisting and writhing movements , restlessness caused from akathisia, and sudden, sharp burning pain that occurs for no known reason.

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Epilepsy Drug May Treat Parkinson’s

The epilepsy drug zonisamide may help curb the tremors and other movement problems of Parkinson’s, a Japanese study shows.

Jan. 4, 2007 — The epilepsy drug zonisamide may help curb the tremors and other movement problems of Parkinson’s, a Japanese study shows.

Zonisamide is sold in the U.S. generically and under the brand name Zonegran.

In Parkinson’s disease, the brain cells that make dopamine, a chemical that helps control the body’s movements, gradually falter and die. Symptoms include tremor, movement problems, and unsteady balance.

The disease usually starts between the ages of 50 and 65. There is no cure, but medications can help manage Parkinson’s symptoms.

The new study on zonisamide for Parkinson’s comes from researcher Miho Murata, MD, PhD, of Japan’s National Center of Neurology and Psychiatry, and colleagues. It appears in the Jan. 2 issue of Neurology.

What To Do With Deep Brain Stimulation At The End Of Life

Deep brain stimulation uses an Implantable Pulse Generator, usually placed in the infraclavicular area, connected to leads within the brain. There is a remote programmer, and also a charging unit in the case of a rechargeable device, which are given to the patient and their carer. It improves dyskinesias and also has a levodopa sparing effect.37

Deactivation of DBS may lead to increased symptom burden as mentioned in the section above and so awareness of features of PHS should be considered if there is failure at the end of life. Supportive treatment should be given if possible,38 and anticipation of symptoms of distress from rigidity and fever.

After death, deactivation of the device with the patients handheld programmer is required before removing the pulse generator and battery in the case of a cremation.

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What Are The Symptoms

PSP affects movement, control of walking and balance, speech, swallowing, eye movements and vision, mood and behavior, and thinking. The pattern of signs and symptoms can be quite different from person to person. The most frequent first symptom of PSP is a loss of balance while walking. Individuals may have abrupt and unexplained falls without loss of consciousness, a stiff and awkward gait, or slow movement.

As the disease progresses, most people will begin to develop a blurring of vision and problems controlling eye movement. These symptoms may include:

  • Slow eye movements.

How Similar Is Canine Parkinsons Disease To The Human Condition

Series on Parkinsons Disease

Parkinsons disease in dogs is very similar to how it affects humans.

Firstly, both unpredictably affect your movement. Both dogs and humans with this disease can expect to have sudden moments of stiffness. This could be any limb but also the face.

Equally, both can expect surprise tremors and shakes. This is often one of the first things owners notice in their dogs a Parkinson like tremor in dogs or the dog shaking his head like Parkinsons

The core of the disease is the same in both dogs and humans.

However, it is important to recognize the different ways Parkinsons presents in dogs and humans.

A huge reason why Parkinsons disease is difficult to spot in dogs in the early stages is because they dont speak. Their faces also dont express the same ways that ours do.

The first signs of Parkinsons in humans are mostly not being able to move the face in the same way or slurred speech.

Unless you have a real-life Scooby-Doo in your life that is linguistically gifted, its most likely you wont spot the signs of Parkinsons in your dog until their limbs are affected with those Parkinsons tremors I mentioned a moment ago.

Another critical difference is with the age groups that Parkinsons most affects. As I said in the intro, it is usually the over 50s that are affected by this pervasive disease in the human world.

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Which Medications Can Make Confusion And Hallucinations Worse

As PD progresses, non-motor symptoms including psychosis and hallucinations become more prominent both for the patient and caregivers.9 Dopaminergic medication can exacerbate these symptoms and this can be reduced through a last in, first out approach. 27,28 Medications that have an anticholinergic effect also may cause or worsen acute confusion and the anticholinergic burden in the patients medication history should be considered.29

Symptoms Of Peripheral Neuropathy

The symptoms of PN can be non-specific, and a person therefore may not be able to distinguish on their own whether his/her symptoms are due to PN or another condition. PN, however, often results in specific findings on a neurologic exam, such as decreased sensation to pin prick or vibration or the lack of ability to discern which way a toe is being pointed without looking. Other tests such as Electromyogram and Nerve conduction studies may be necessary to confirm the diagnosis. Small fiber neuropathy which typically causes pain, burning, tingling and/or numbness in the feet, may have normal EMG and NCS and a skin biopsy may be necessary to confirm the diagnosis. With the appropriate examination and supportive tests however, a neurologist should be able to distinguish the symptoms of peripheral neuropathy from other conditions, including PD, that may cause similar symptoms.

There are many known causes of PN including diabetes, vitamin deficiencies, certain infections, and autoimmune diseases. Many of these causes can be treated, so it is important to know if you do have PN and what the cause is. There are those people however, who have the signs and symptoms of PN, but no known cause can be identified.

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Other Diseases That Have Similar Symptoms To Parkinsons Disease

Now, I just want to address something you may have noticed here. Many of these symptoms and signs could also apply to other diseases. Is it an overreaction to assume that if your dog twitches a bit it is definitely Parkinsons disease?

Well yes and no. Certainly, all of these symptoms could indicate other ailments.

Lets go through a few now:

  • Generalized tremor syndrome: Yep, its a thing! Your dog may tremor for no real reason. This doesnt have the same stiffness and limited joint mobility that Parkinsons does.
  • Kidney disease: Kidney disease can cause depression, anxiety, and tremoring. Youll most likely see vomiting and infrequent urination come with this and can lead to euthanasia.
  • Arthritis: A friend of mine has an arthritic dog and stiffness is a real problem. Having inflexible joints can also cause your dog to limp. Arthritis is differentiated by joint pain so your dog may be more vocal if this is what they are suffering.
  • Seizure disorders: Did you know that dogs can suffer from epilepsy? Seizures can be caused by all kinds of things. They can also be the entire ailment all by themselves.

As you can see, the signs of Parkinsons in dogs could belong to an entirely different diagnosis. So, if you notice stiffness or tremoring, it is best to have your professional veterinarian make a formal diagnosis.

Other Reasons For Cognitive Symptoms

What is Parkinson’s disease? | Nervous system diseases | NCLEX-RN | Khan Academy

Besides PD, there are other important causes of cognitive dysfunction to keep in mind. Medical illnesses such as thyroid disease or vitamin B12 deficiency can cause cognitive symptoms. Urinary tract infections or pneumonia can acutely cause confusion or hallucinations. In these settings, the cognitive symptoms are generally reversible after the infection or medical condition is treated. One should be aware that some medications for pain or bladder problems may cause sedation/sleepiness or confusion, and, thereby, impair cognitive function.

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How Is Psp Diagnosed

Currently there are no tests or brain imaging techniques to definitively diagnose PSP. An initial diagnosis is based on the persons medical history and a physical and neurological exam. Identifying early gait problems, problems moving the eyes, speech and swallowing abnormalities, as well as ruling out other similar disorders is important. Diagnostic imaging may show shrinkage at the top of the brain stem and look at brain activity in known areas of degeneration.

What Are The Important Points Regarding Apomorphine At The End Of Life

Apomorphine is a dopamine agonist, which is given as a subcutaneous infusion either continuously or intermittently and also as single subcutaneous injections. An overview of studies into apomorphine use shows improvement in motor off periods and in dyskinesias.39

Apomorphine has side-effects similar to other dopaminergic medication but also notably nausea and vomiting. Ondansetron is not recommended for nausea in patients using apomorphine due to adverse effects.21

Subcutaneous apomorphine has been used at the end of life in a patient with advanced PD although with the recommendation that this is by a healthcare professional experienced in its use.40

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Parkinson’s Disease Caused By Stroke: Vascular Parkinsonism

A stroke involving the substantia nigra or basal ganglia is called vascular Parkinsonism. Similar to other strokes, damage is caused primarily by a lack of blood supply to these regions of the brain. Generally, the strokes associated with Parkinsonism are termed small vessel strokes as they aren’t normally catastrophic. Diagnosis of small vessel strokes can be confirmed with diagnostic tests such as CT or MRI of the brain.

It typically takes several small strokes to produce the symptoms of vascular Parkinsonism. In some cases, small vessel strokes can also produce a type of dementia called vascular dementia. As such, it is not unusual for people who have vascular Parkinsonism to also have vascular dementia.

How To Manage Symptoms At The End Of Life

Epilepsy: Facts, Disease Prevention and Treatment Strategies

At the end of life, good practice is to plan for any potential symptoms that may arise. The most common symptoms anticipated are pain, dyspnoea, nausea and vomiting, agitation, anxiety, delirium and noisy respiratory secretions.18 For patients with PD particular considerations should be given to the more commonly used medicines, specifically anticholinergics and antidopaminergics. These are usually prescribed for treatment of respiratory secretions and nausea and vomiting. Alternatives are available for respiratory secretions, and include glycopyrronium, in preference to hyoscine hydrobromide. Although this is an anticholinergic, only a small proportion crosses the blood brain barrier.

For nausea and vomiting, ondansetron,19 cyclizine, domperidone have all been suggested in PD.20 However, ondansetron has been shown to be inferior to domperidone in the pre-treatment of apomorphine.21 Cyclizine has anticholinergic properties and may exacerbate confusion, especially when comorbid psychosis or cognitive impairment are present. Levomepromazine, although it has antidopaminergic effects, has been shown to be effective for nausea with rotigotine in a case report.22

Agitation, dyspnoea and pain can all be managed with the same anticipatory medications as recommended.20 Specifically relating to PD, several case reports have supported the intraoperative use of midazolam, during sedation, for tremor and dyskinesias,23,24 as well as for agitation at the end of life.20

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What Research Is Being Done

The National Institute of Neurological Disorders and Stroke , a component of the National Institutes of Health, is the primary funder of research on the brain and nervous system. NIH is the leading funder of biomedical research in the world.

PSP is one of the diseases being studied as part of the NINDS Parkinsons Disease Biomarkers Program. This major NINDS initiative is aimed at discovering ways to identify individuals at risk for developing Parkinsons disease and related disorders, and to track the progression of these diseases. NINDS also supports clinical research studies to develop brain imaging that may allow for earlier and more accurate diagnosis of PSP.

Genetic studies of PSP may identify underlying genetic causes. Previous studies have linked regions of chromosomes containing multiple genes, including the gene for the tau protein , with PSP. Researchers hope to identify specific disease-causing mutation and are also studying how genetics and environment interaction may work together to contribute to disease susceptibility.

Animal models of PSP and other tau-related disorders, including fruit fly and zebrafish models, may identify basic disease mechanisms and lead to preclinical testing of potential drugs. Other studies in animal models focus on brain circuits affected by PSP, such as those involved in motor control and sleep, which may also yield insights into disease mechanisms and treatments.

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