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Generalized Tonic Clonic Seizure
Aka: Generalized Tonic Clonic Seizure, Grand Mal Seizure, Major Motor Seizure, GTCS
- Cause
- Idiopathic
- Congenital cerebral lesion
- Posttraumatic cerebral scar
- Brain Tumor
- Symptoms
- Aura may precede Seizure
- Irritability
- Apathy
- Giddiness
- Headache
- Scintillating scotomata
- Nausea
- Choking sensation
- Paresthesia
- Myalgia
- Signs
- Sudden Loss of consciousness
- Tonic Phase
- Muscular rigidity with Opisthotonos
- Adduction and flexion of arms
- Extension of legs
- Clonic Phase
- Generalized body musculature jerking
- Flaccid coma
- Loss of postural tone
- Loss of Deep Tendon Reflexes
- Unconsciousness
- Apnea, Cyanosis
- Associated with
- Tongue or lip biting
- Urinary or fecal Incontinence on awakening
- Labs
- Complete Blood Count (CBC)
- Postictal Leukocytosis in peripheral blood
- Prolactin
- Elevated following Seizure
- Diagnosis
- Electroencephalogram (EEG)
- Paroxysmal diffuse outbursts of high voltage
- Many spikes in fast rhythm
- Management: Prophylaxis (Same as for Partial Seizure)
- Phenytoin
- Carbamazepine
- Phenobarbital
- Primidone
- Valproic Acid
- Intractable Seizures have been treated with surgery
- Zimmerman (2003) Mayo Clin Proc 78:109-17