grand mal seizure


Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.
Related to grand mal seizure: Petit mal seizure

seizure

 [se´zhur]
1. the sudden attack or recurrence of a disease.
2. a convulsion or attack of epilepsy.
absence seizure the seizure seen in petit mal epilepsy, marked by a momentary break in the stream of thought and activity, accompanied by a symmetrical spike and wave at 3 cycles per second on the electroencephalogram. Called also petit malseizure. See epilepsy.
atonic seizure an absence seizure characterized by sudden loss of muscle tone.
complex partial seizure see partial seizure.
febrile seizure febrile convulsion.
focal seizure partial seizure.
focal motor seizure a simple partial seizure consisting of clonus or spasm of a muscle or muscle group, occurring either singly or in a continuous repetitive series.
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.
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. See epilepsy.
petit mal seizure absence seizure.
reflex seizure (sensory seizure) an epileptic seizure in response to a sensory stimulus, which may be tactile, visual, auditory, or musical.
simple partial seizure see partial seizure.
tonic-clonic seizure see generalized tonic-clonic seizure.

gen·er·al·ized ton·ic-clo·nic sei·zure

a generalized seizure characterized by the sudden onset of tonic contraction of the muscles often associated with a cry or moan, and frequently resulting in a fall to the ground. The tonic phase of the seizure gradually give way to clonic convulsive movements occurring bilaterally and synchronously before slowing and eventually stopping, followed by a variable period of unconsciousness and gradual recovery.

grand mal seizure

(grăn′ mäl′, măl′, grănd′)

grand mal seizure

grand mal seizure

Generalized tonic-clonic seizure Neurology A seizure disorder arising between infancy and early adulthood, with attacks triggered by fever or unidentified environmental cues–eg, psychologic and emotional stress Clinical Prolonged tonic-clonic seizures with the risk of intraictal cerebral hypoxia; sequelae include intellectual impairment, behavioral changes, or rarely ataxia and spasticity. See Epilepsy, Psychomotor epilepsy. Cf Petit mal epilepsy.

gen·er·al·ized ton·ic-clo·nic sei·zure

, generalized tonic-clonic epilepsy (jen'ĕr-ăl-īzd ton'ik-klon'ik sē'zhŭr, ep'i-lep'sē)
Seizure characterized by sudden onset of tonic contraction of muscles often associated with a cry or moan, and frequently resulting in a fall.

seizure

1. the sudden attack or recurrence of a disease.
2. a convulsion or attack of epilepsy.

audiogenic seizure
a seizure brought on by sound.
cerebral seizure
an attack of epilepsy.
epileptiform seizure
focal seizure
see partial seizure (below).
generalized seizure
see grand mal seizure (below).
grand mal seizure
one with no localizing signs. After a brief period of restlessness, there is unconsciousness, generalized muscular activity, excessive salivation, chewing activity, opisthotonos, running movements, and often urination and defecation. The most common type of seizure in dogs and cats.
Jacksonian seizure
partial seizure
one restricted to a focus in the brain; signs correspond to the area affected, e.g. motor activity of an isolated area or limb, hallucinations such as fly catching, apparent blindness, behavioral abnormalities, etc. Called also focal seizures.
petit mal seizure
a mild, very brief generalized seizure. See also petit mal.
photogenic seizure
a seizure brought on by light.
psychomotor seizure
motor seizures accompanied by a psychic stage. There are hallucinations, salivation, pupillary dilatation, mastication, fecal and urinary excretion, and wild running. Seen in dogs with lesions in the pyriform lobe or hippocampus and from poisoning with agenized flour (canine hysteria). Called also running fits.
tetanic seizure
see tetany.
seizure threshold
the level of stimulation at which a seizure is precipitated.
tonic seizure
one in which the muscles are rigid.
tonic-clonic seizure
alternating tonic (rigid muscles) and clonic (jerking of muscles) phases; a grand mal seizure.
References in periodicals archive ?
Prior to the surgery he was averaging 140 grand mal seizures a week.
He suffered a grand mal seizure minutes after his team was eliminated from the Southern California Regional quarterfinal.
Moments after the game against host Orange Coast College, Canyons coach Greg Herrick suffered a grand mal seizure and was taken to a Newport Beach hospital.
At the age of two years, our beautiful, blonde, blue-eyed daughter had her first grand mal seizure.
Perlman said Herrick was taken by ambulance to Hoag Memorial Presbyterian Hospital in Newport Beach, where doctors performed tests and determined he had suffered a grand mal seizure, in which there are uncontrolled muscle spasms.
They're talking about kids who have grand mal seizures, and they've discovered that marijuana eases that down to where these children can have a life.
After admission, the patient had CSF rhinorrhea, grand mal seizures, hyperosmolarity, hyperglycemia, aspiration pneumonia, meningoencephalitis, and coma.
When he was just about 13 years old, we tried to take him off of it but he had two Grand Mal seizures in a span of 12 hours.
She had several grand mal seizures and was placed in the epilepsy ward at NYU Langone Medical Center.
The young Leicester couple had heard the remarkable story about 5-year-old Charlotte Figi, who was having 300 grand mal seizures a week before her family moved to Colorado, where she was successfully treated with a strain of marijuana that has no psychoactivity.
Elizabeth's IQ dropped 90 points: profound retardation as a result of countless petit mal and grand mal seizures.
Lorraine Mason, Wright's mother, said her son is prone to what are known as grand mal seizures.