what is a massive seizure
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Seizure What Is It? A seizure is a sudden change in the brain's normal electrical activity. During a seizure, brain cells fire uncontrollably at up to four times their normal rate, temporarily affecting the way a person behaves, moves, thinks or feels. There are two major types of seizures:
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Seizures Brain Tumor Seizures. Seizure is a common symptom in people with brain tumors. For some people, a seizure might be the first clue that something unusual is happening in the brain. Seizures are particularly common with slow-growing gliomas, meningiomas located in the convexity of the brain, and with metastatic brain tumors.
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Caring for Dogs Who Suffer From Brain Diseases and Seizures Types of Seizures and Why They Happen. A seizure is the result of sudden and abnormal neurological activity, basically a kind of electrical storm in the brain. In humans and dogs, seizures can manifest themselves in many ways and have a multitude of causes. However, seizures are always accompanied by altered or loss of consciousness. They may last a few seconds, several minutes, or, in the worst cases, hours.
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Convulsions Convulsions are when a person's body shakes rapidly and uncontrollably. During convulsions, the person's muscles contract and relax repeatedly. The term convulsion is often used interchangeably with seizure, although there are many types of seizures, some of which have subtle or mild symptoms instead of convulsions.Seizures of all types are caused by disorganized and sudden electrical activity in the brain.onvulsions can be unsettling to watch. Despite their appearance, most seizures are relatively harmless. They usually last from 30 seconds to 2 minutes. However, if a seizure is prolonged, or if multiple seizures happen and the person doesn't awaken in between, this is a medical emergency.
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Types of Seizures There are six types of generalized seizures: 1  Tonic-clonic seizures, also known as grand mal seizures, are what most people think of when they imagine a seizure. They involve a loss of consciousness, stiffening of the body, and shaking or jerking, sometimes followed by loss of bladder or bowel control.
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- NetWellness is a global, community service providing quality, unbiased health information from our partner university faculty. NetWellness is commercial-free and does not accept advertising. My husband 47 year old never having any health issues had a Grand mal seizure at 5 am while sleeping that lasted 3-5 min. He was rushed to the hopital semi conscious and had a second seizure at 7 am. He was givin Dilantan, Ativan and Morphine. Woke up several hours later with no memory of the seizure and also of some past events.
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Partial (Focal) Seizure All seizures are caused by abnormal electrical disturbances in the brain. Partial (focal) seizures occur when this electrical activity remains in a limited area of the brain. The seizures can sometimes turn into generalized seizures, which affect the whole brain. This is called secondary generalization. Partial seizures can be further characterized as:
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What You Should Know About Seizures Anyone can have a seizure. There are some who believe that seizures and epilepsy are one and the same thing. A seizure, by definition, is a transient event caused by excessive or non-synchronous brain activity. Epilepsy, by contrast, is a medical condition characterized by the recurrence of seizure.
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Seizures 1 Generalized Tonic-Clonic (Grand Mal): This is the most common type of seizure. The patient will experience a loss of consciousness followed by muscle rigidity and convulsions.  Simple Partial: This seizure is sometimes referred to as a focal motor or Jacksonian motor seizure.
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- About 1 out of 10 people will have a seizure. That means seizures are common, and one day you might need to help someone during or after a seizure. Learn what you can do to keep that person safe until the seizure stops by itself.hen most people think of a seizure, they think of a generalized tonic-clonic seizure, also called a grand mal seizure. In this type of seizure, the person may cry out, fall, shake or jerk, and become unaware of what’s going on around them. Here are things you can do to help someone who is having this type of seizure:
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- Focal/Partial Seizures. Focal seizures, also called partial seizures, are when abnormal electrical functions happen on only one side of the brain. Some people feel an aura, or a feeling of euphoria or doom, right before having a seizure. Other pre-seizure symptoms include changes to sight, hearing, or smell perception.
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- The symptoms of a severe seizure include violent shaking and a loss of control. However, mild seizures... Read More. Seizures are changes in the brain’s electrical activity. This change can cause dramatic, noticeable symptoms or it may not cause any symptoms. The symptoms of a severe seizure include violent shaking and a loss of control. However, mild seizures can also be a sign of a significant medical problem, so recognizing them is important. Because some seizures can lead to injury or be evidence of an underlying medical condition, it’s important to seek treatment if you experience them.
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seizure generalized tonic-clonic seizure (grand mal seizure) the seizure seen in grand mal epilepsy, marked by loss of consciousness and generalized tonic convulsions followed by clonic convulsions. See epilepsy. jackknife s's infantile spasms. myoclonic seizure one characterized by a brief episode of myoclonus.
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Overview Causes. Grand mal seizures occur when the electrical activity over the whole surface of the brain becomes abnormally synchronized. The brain's nerve cells normally communicate with each other by sending electrical and chemical signals across the synapses that connect the cells.In people who have seizures, the brain's usual electrical activity is altered.he brain's nerve cells normally communicate with each other by sending electrical and chemical signals across the synapses that connect the cells. In people who have seizures, the brain's usual electrical activity is altered.
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Overview By Mayo Clinic Staff. Grand mal seizures occur when the electrical activity over the whole surface of the brain becomes abnormally synchronized. The brain's nerve cells normally communicate with each other by sending electrical and chemical signals across the synapses that connect the cells. In people who have seizures, the brain's usual electrical activity is altered. Exactly what causes the changes to occur remains unknown in about half the cases.
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- Grand Mal - Primary Generalized, Tonic-Clonic Seizures. 1  The true generalized seizure is characterized by sudden loss of consciousness, usually without warning. 2  At onset there is usually a general stiffening of the body, often with forceful expiration of air (and a peculiar sound as this air passes through the throat).
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Fact Sheet A seizure is a sudden, involuntary change in behavior, muscle control, consciousness, and/or sensation. A seizure is often accompanied by an abnormal electrical discharge in the brain. Symptoms of a seizure can range from sudden, violent shaking and total loss of consciousness to staring into space, altered vision, and difficult speech.
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- Seizures (Convulsions, Status. Epilepticus) in Dogs. Basics. OVERVIEW. •―Seizures‖ are periods of uncontrolled electrical activity in the brain (also known as ―convulsions‖); ―status. epilepticus‖ is repeated or prolonged seizure activity. •―Epilepsy‖—disorder characterized by recurring seizures that originate from the brain.
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seizure A sudden episode of transient neurologic symptoms such as involuntary muscle movements, sensory disturbances and altered consciousness. A seizure is caused by abnormal electrical activity in the brain, which is often diagnosed on an electroencephalogram. See also epilepsy.
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Seizures and Head Injury / Brain Injury During the seizure the electrical fields in the brain are overloaded, resulting in seizures. The most commonly seen seizures related to traumatic brain injury are generalized seizures, which are also called Tonic-Clonic or Grand Mal seizures. The classification of different types of seizures is beyond the scope of this website.
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What are Convulsions? Convulsions, also sometimes called seizures, are a medical condition in which a person’s body appears to shake in an uncontrollable manner. When a person experiences them, his or her muscles quickly contract and relax repeatedly.This is what causes the appearance of rapid shaking movements.onvulsions, also sometimes called seizures, are a medical condition in which a person’s body appears to shake in an uncontrollable manner. When a person experiences them, his or her muscles quickly contract and relax repeatedly.
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Seizures and Convulsions in Dogs Status Epilepticus in Dogs. Status epilepticus, or epilepsy, is a neurological disorder that causes dogs to have sudden, uncontrolled and recurring seizures. These physical attacks can come with or without a loss of consciousness.
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Seizures A seizure is an attack caused by abnormal electrical activity in the brain. It lasts only a short period of time and may cause unusual movements, a change in the level or loss of consciousness, and/or sensory distortions. There are many different types of seizures.
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seizure myoclonic seizure one characterized by a brief episode of myoclonus. partial seizure any seizure due to a lesion in a specific, known area of the cerebral cortex; symptoms vary with different lesion locations. A simple partial seizure is the most localized type, with a discharge that is predominantly one-sided or presents localized features without loss of consciousness. A complex partial seizure is associated with disease of the temporal lobe and characterized by varying degrees of impairment of consciousness.
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- 2 1 What Is a seIzure? A seizure is a temporary loss of control often, but not always, accompanied by convulsions, unconsciousness or both. Most common are epileptic seizures, or seizures caused by sudden abnormal electrical discharges in the brain. Non-epileptic seizures, on the other hand, are not accom-panied by abnormal electrical discharges.
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- Overview. The frontal lobe is the largest lobe and gives rise to seizures with distinctive features depending on the area of the frontal lobe involved. Motor features are prominent and range from hypermotor thrashing attacks with pelvic thrusting and bipedal automatisms to asymmetric tonic posturing.