Tonic Seizures: Symptoms, Causes, Severity - Healthline
2023年5月24日 · Tonic seizures cause sudden stiffness and rigidity in your muscles. They typically last less than 1 minute. Seizures are rapid bursts of electrical activity in your brain that can...
Tonic Seizures - Epilepsy Foundation
What is a tonic seizure? Muscle "tone" is the muscle's normal tension at rest. In a tonic seizure, the tone is greatly increased: the body, arms, or legs become suddenly stiff or tense. A person may be aware or have only a small change in awareness during a tonic seizure.
Tonic-clonic (grand mal) seizure - Symptoms and causes
2023年12月12日 · A tonic-clonic seizure, previously known as a grand mal seizure, causes a loss of consciousness and violent muscle contractions. It's the type of seizure most people picture when they think about seizures.
Tonic Seizures: Definition, Symptoms, Causes, and Treatment
2022年10月27日 · A tonic seizure is an epileptic seizure in which muscles suddenly become tense and rigid. A person may be aware during a tonic seizure, though they often occur during sleep. Tonic seizures can start on one or both sides of the brain and last up to 2 minutes.
Tonic and Clonic Seizures - Johns Hopkins Medicine
A seizure that originates in both halves (hemispheres) of the brain simultaneously, causing stiffness or twitching throughout the body, is known as a generalized tonic or clonic seizure. A tonic or clonic seizure can also begin in one area of the brain (called a partial or focal seizure), affecting only one part of the body such as an arm or a leg.
Tonic-Clonic (Grand Mal) Seizures - Johns Hopkins Medicine
Tonic-clonic seizures, formerly known as grand mal seizures, comprise two stages: a tonic phase and a clonic phase. These intense seizures can be frightening to experience or observe, as extreme muscle spasms may temporarily arrest breathing.
Seizures - Symptoms and causes - Mayo Clinic
2024年11月1日 · Tonic-clonic seizures are the most common type of generalized seizure. They once were called grand mal seizures. They can cause passing out, body stiffness and shaking.
Tonic seizures - Epilepsy Action
Information on tonic seizures, what happens during and after, and what you can do if someone is experiencing one
Tonic-Clonic Seizures - Epilepsy Foundation
What is a tonic-clonic seizure? This type of seizure (also called a convulsion) is what most people think of when they hear the word "seizure." An older term for this type of seizure is "grand mal." As implied by the name, they combine the characteristics of tonic and clonic seizures. Tonic means stiffening, and clonic means rhythmical jerking.
Types of Seizures - Johns Hopkins Medicine
Focal seizures can evolve into major events that spread to the entire brain and cause tonic-clonic seizures. These seizures are important to treat and prevent since they can cause respiratory problems and injuries. Generalized-onset seizures are surges of abnormal nerve discharges throughout the cortex of the brain more or less at the same time.