A generalized tonic–clonic seizure, commonly known as a grand mal seizure or GTCS, [1] is a type of generalized seizure that produces bilateral, convulsive tonic and clonic muscle …

Tonic-clonic seizures can start in one or both sides of the brain. When they start in both sides of the brain, they are called generalized onset motor seizures or a generalized tonic-clonic …

Feb 1, 2025 · Or seizures can be generalized, in which they result in electrical activity in all areas of the brain. Tonic-clonic seizures may begin as focal seizures in a small area of the brain and …

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.

Jul 1, 2025 · Tonic-Clonic (Grand Mal) Seizure A tonic-clonic seizure causes sudden muscle stiffness, shaking and loss of consciousness. It happens when abnormal electrical activity …

Dec 9, 2025 · Care guide for Generalized Tonic Clonic Seizures. Includes: possible causes, signs and symptoms, standard treatment options and means of care and support.

Dec 3, 2024 · Epilepsy: Generalized Tonic-Clonic Seizures Overview Generalized tonic-clonic (grand mal) seizures are the easiest seizures to recognize. They happen most often in people …

The clonic component is the rhythmic shaking that occurs and is longer. Together, a generalized tonic-clonic seizure (GTCS) is also called a grand mal seizure and is one of the most...

Tonic-clonic seizures can have a generalised onset, meaning they affect both sides of the brain from the start. When this happens, the seizure is called a generalised tonic-clonic or bilateral …

May 8, 2025 · A tonic-clonic seizure, formerly called a grand mal seizure, is the "classic" type of seizure most people are familiar with. It involves two phases: In the tonic phase, the muscles …