myoclonic seizure

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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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

my·o·clon·ic sei·zure

a seizure characterized by sudden, brief (200-msec) contractions of muscle fibers, muscles, or groups of muscles of variable topography (axial, proximal, or distal limb).
Farlex Partner Medical Dictionary © Farlex 2012

my·o·clon·ic sei·zure

(mīō-klonik sēzhŭr)
Seizure characterized by sudden, brief (200-msec) contractions of muscle fibers, muscles, or groups of muscles.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
In the PTZ-induced seizure, the administration of thymoquinone with a dose of 40 mg/kg, 30 min, and with doses of 40 and 80 mg/kg, 60 min before the injection of PTZ, prolonged the latency of myoclonic seizures. Also, thymoquinone with the doses of 40 and 80 mg/kg 60 min before the injection of PTZ reduced the duration of myoclonic seizures (Table 1).
Jeeva Shankar et al in 2010 (AIIMS NICU Protocol) mentioned that "Myoclonic seizures carry the worst prognosis in terms of neuro-developmental outcome and seizure recurrence.
Seizures, especially myoclonic seizures, are a common clinical feature of MERRF.[3] Until now, the treatment of myoclonic seizures in MERRF has been empirical, ineffective, and different from the treatments of other causes of myoclonic seizures.
The present study showed that generalized seizures (58%) were most common followed by focal (32%), absence (4%), unclassified (4%)and myoclonic seizures (1%), infantile spasm (1%) (p value 0.174).
Aprecia Pharmaceuticals' Spritam (levetiracetam) is indicated for oral use as a prescription adjunctive therapy in the treatment of partial onset seizures, myoclonic seizures and primary generalised tonic-clonic seizures in adults and children with epilepsy.
"They think he is having myoclonic seizures, which show themselves as very erratic movements, his arms will jerk."
Patients with generalized epilepsy however; respond differently to different antiepileptic drugs, mainly because of the type of the seizures (for example, patients with generalized myoclonic seizures respond differently to different antiepileptic drugs than patients with absence seizures).
(1-7) In terms of seizure type, clozapine has been most commonly linked with generalised tonic-clonic seizure (GTCS) although there are also reports of partial, atonic, and myoclonic seizures with clozapine.
As a specific electroclinical syndrome, it is characterized by a genetic predisposition, no evidence of neurological or intellectual deficit and by mandatory or typical myoclonic seizures alone (irregular jerks of the shoulders and arms) or combined with generalized tonic-clonic seizures (GTCS) in 80% or the absence seizures in 15-30%.
JME presents at puberty, usually with generalized tonic-clonic seizures and myoclonic seizures in the morning.