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Jeavons syndrome is a type of epilepsy. It is one of the most distinctive reflex syndromes of idiopathic generalized epilepsy characterized by the triad of eyelid myoclonia with and without absences , eye-closure-induced seizures, EEG paroxysms, or both, and photosensitivity .
Other proposed syndromes are Jeavons syndrome (eyelid myoclonia with absences), and genetic generalised epilepsy with phantom absences. Absence seizures are also known to occur to patients with porphyria and can be triggered by stress or other porphyrin-inducing factors. Childhood Absence Epilepsy
Myoclonic epilepsy refers to a family of epilepsies that present with myoclonus. When myoclonic jerks are occasionally associated with abnormal brain wave activity, it can be categorized as myoclonic seizure. If the abnormal brain wave activity is persistent and results from ongoing seizures, then a diagnosis of myoclonic epilepsy may be ...
The primary diagnosis for JME is a good knowledge of patient history and the neurologist's familiarity with the myoclonic jerks, which are the hallmark of the syndrome. [38] Additionally, an EEG will indicate a characteristic pattern of waves and spikes associated with the syndrome such as generalized 4–6 Hz polyspike and slow wave discharges.
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular.. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a dis
SYNGAP1-related encephalopathy can result in a specific seizure type, characterized by eyelid myoclonia followed by an atonic drop. Reflex seizures are also seen, often triggered by eating and photosensitivity. [8] [16] [14] Atonic seizures [3] Eyelid myoclonia [3] Myoclonic absences [3] Myoclonic jerks; Tonic-clonic seizures [5]