Epilepsy, more commonly known as epilepsy, is a neurological disorder that results from impaired brain function. Epilepsy is a chronic and incurable disease. The disease takes the form of temporary attacks called seizures, which can vary in intensity and duration. Seizures occur as a result of disturbances in the functioning of the brain that cause sudden and spontaneous, uncontrolled bioelectric discharges to the nerve cells of the cerebral cortex. As a result of the excessive activity of these cells, an epileptic attack occurs. Epilepsy is a disease of unknown etiology, but common conditions include stroke, brain tumor, traumatic brain injury, alcohol abuse (alcoholic epilepsy), and drug abuse. It is estimated that nearly 1% of the world's population suffers from epilepsy. Most of the cases, according to the studies, occur in developing countries, where epilepsy in children and young people is a common disease. On the other hand, in developed countries, epilepsy most often affects infants and the elderly. Epilepsy in children is called idiopathic epilepsy, and its basics are as yet unknown, while the most common cause of epilepsy in adults and the elderly is alcohol dependence or another disease. Research shows that the susceptibility to the disease increases with age. Additionally, the disease is much more common in women than in men.
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The causes of the disease
The pathogenesis of the disease is not fully known and it is impossible to unequivocally define the reasons for the development of the ailments. Epilepsy may be genetically determined or very often be the result of head injuries. The reasons behind the development of epilepsy are very often:
- stroke,
- inflammation of the brain and meninges,
- subarachnoid hemorrhage,
- cerebral ischemia,
- toxic-metabolic damage to the brain tissue,
- tumors.
Epilepsy diagnosis
The first step in diagnosing epilepsy is to interview the presumed person. This is primarily to determine the appropriate treatment path and adjust the tests. The most common methods used to diagnose symptoms and the severity of the disease are:
- EEG tests
Electroencephalographic examinations belong to the group of routine examinations in cases of suspected epilepsy. This test is most often performed for partial-onset epilepsy. The most valuable EEG recording occurs during a seizure.
- computed tomography and magnetic resonance imaging
Metody obrazowania za pomocą tomografii komputerowej czy tomografii rezonansu magnetycznego pozwalają na zlokalizowanie źródła przypadłości. Dzięki tym badaniom określany jest także charakter choroby oraz wykluczenie chorób współistniejących o podobnych objawach klinicznych.
Imaging methods using computed tomography or magnetic resonance tomography allow to locate the source of ailments. Thanks to these tests, the nature of the disease is also determined, as well as the exclusion of comorbidities with similar clinical symptoms.
- SPECT test
The SPECT (Single Photon Emission Computed Tomography) scintigraphic examination uses radiopharmaceuticals (ligands labeled with radioactive isotopes), ie DTPA labeled with 99m-Tc technetium, which is to help in the assessment of cerebral perfusion during an epileptic seizure in a patient. The SPECT test helps to locate epileptic lesions and verify the oxygenation of the brain.
Epilepsy, seizure symptoms and classification
Epilepsy attacks are usually divided into two types - partial and generalized. These categories also include individual seizure subtypes, assigned based on symptoms and occurrence under specific conditions, such as generalized secondary seizures and vegetative seizures, among others.
Partial seizures
This is the most common group of epileptic seizures that initially only affect specific areas of the brain. They can stop partially or spread, spreading to larger and larger areas of the cerebral cortex, and turning into generalized seizures. The symptoms associated with partial seizures are often Todd's paresis or PP. As the affected area develops, there may be numbness or an unpleasant taste and smell. Partial seizures are divided according to the accompanying symptoms into simple (there are autonomic symptoms, mental and motor disorders), complex (consciousness is disturbed) and generally developing.
Generalized seizures
The second most common form of epileptic seizures is generalized seizures. This group includes a number of seizures that differ in the effects of seizures, including: clonic seizures, tonic seizures, tonic-clonic seizures (characterized by loss of consciousness and an unnatural body position, i.e. straight limbs, clenched hands, head tilted back), seizures unconsciousness, atonic seizures (the patient loses balance due to a sudden loss of muscle tone) and myoclonic seizures (sudden, short-term muscle jerks)
Treatment
The treatment process usually begins only after the second attack has appeared and is based on taking antiepileptic drugs. These are primarily anticonvulsants. The medications used in most cases include phenytoin, valproic acid and carbamazepine. These drugs work independently of the group of epilepsy seizures. Some epilepsy drugs, such as lamotrigine, levetiracetam and valproic acid, can cause side effects. For this reason, they are most often recommended only when safer drugs prove ineffective in the treatment process or in cases of advanced disease.
Equally often used in the treatment of epilepsy is oxcarbazepine. The substance in structure and action resembles such agents as clonazepam or carbamazepine. They have a positive effect on GABAergic conductivity.
However, phenobarbital is the most frequently recommended drug, especially in the first trials of pharmacological treatment of epilepsy. The drug is endorsed by the World Health Organization, especially in developing countries, due to the low price of the dose. Primidone also has a similar effect to this drug.
A relatively frequent phenomenon is the occurrence of side effects during drug therapy, resulting from long-term use of drugs. However, most of the side effects are mild and do not pose a risk to patients. This is often related to the correct dosage of drugs. Symptoms such as sleepiness, mood swings and shaky gait may be present. Less common rash or more serious conditions such as bone marrow suppression or increased liver toxicity. The worst situation in this respect is the situation of pregnant women, as taking epilepsy drugs may be associated with birth defects in children, especially in the case of taking medications that cause side effects during the first trimester of pregnancy. It is suspected that the use of valproic acid poses the greatest risk. However, drug therapy is rarely discontinued for the sake of the patient's health and life, as it is concluded that discontinuing medication may have much more risky consequences. Gradual discontinuation of drugs, towards their complete discontinuation, is only used in people who have noticed stabilization of their health - the seizure has not occurred for at least two or four years. It is estimated that this possibility covers about 60% of sick adults, and among children it is slightly higher - about 70%.
Surgical treatment
In cases where pharmacological treatment is ineffective, surgical treatment is used, especially in patients with focal seizures. This option is considered after the patient has received at least a few different medications. Surgical treatment is based on the removal of the hippocampus by resection of the anterior temporal lobe or, in the case of people with cancer, removal of the tumor. Such methods are designed to achieve total seizure control. Surgery may also be used to reduce the frequency of seizures (e.g., calosotomy).
=However, it should be borne in mind that not all patients who do not improve through pharmacological treatment can undergo surgery. In people who do not get better under the influence of drugs, and at the same time cannot, for specific reasons, undergo surgical treatment, neurostimulation is the most commonly used. This takes the form of stimulation of the anterior thalamus nucleus, stimulation of the vagus nerve, or reflex stimulation with feedback.
Alternative medicine
There are also alternative treatments for epilepsy, which are most often treated as supporting the proper treatment process. In most cases, it is not fully confirmed that these methods have a real impact on the health situation of patients and their quality of life.
One of the alternative and most controversial methods at the same time is the use of medical marijuana. Other popular forms of supporting classic pharmacotherapy are acupuncture, yoga or treatment with a psychologist. Among the known alternative methods, there is also a ketogenic diet, i.e. one that is rich in fats and is based on a low carbohydrate content and a change in the distribution of the macronutrient repertoire in the body. In this case, there is a significant correlation between the method and the disease, as it lowers the frequency of epilepsy seizures. In children, this is a decrease of about 30-40%. The downside of the ketogenic diet is that it often causes constipation, so it is recommended to include low-carbohydrate vegetables in your diet to provide fiber.
The treatment process also supports the minimization or complete exclusion of factors that may have an influence on the triggering of seizures in patients. The most famous in this category are: flickering light or artificial smoke. For this reason, people with epilepsy are advised not to use the television or computer for a long time, and even participate in club concerts.
However, it should be remembered that most of the alternative methods do not have a clearly defined effect on the health of patients with epilepsy, so they can only be some kind of addition to the basic treatment process and lifestyle, not the main treatment pathway.
Source:
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