Biomaterial Database

Ictus emeticus induced by photic stimulation. 1988

D E Jacome, and M Suarez

Department of Medicine, Palmetto General Hospital, Hialeah Hospital, Florida.

It has been recently established that ictus emeticus originates from mesial temporal lobe structures. We herein report a patient with generalized epilepsy who exhibited ictus emeticus reflexly triggered by intermittent photic stimulation accompanied by generalized photoparoxysmal responses on the electroencephalogram. All seizures and EEG abnormalities ceased after treatment with valproic acid. The occurrence of ictus emeticus in generalized epilepsy is an apparent paradox, better explained by the theory of "secondary temporalization" implying the selective engagement of temporal lobe structures during generalized seizures.

UI	MeSH Term	Description	Entries
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010775	Photic Stimulation	Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.	Stimulation, Photic,Visual Stimulation,Photic Stimulations,Stimulation, Visual,Stimulations, Photic,Stimulations, Visual,Visual Stimulations
D004569	Electroencephalography	Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.	EEG,Electroencephalogram,Electroencephalograms
D004830	Epilepsy, Tonic-Clonic	A generalized seizure disorder characterized by recurrent major motor seizures. The initial brief tonic phase is marked by trunk flexion followed by diffuse extension of the trunk and extremities. The clonic phase features rhythmic flexor contractions of the trunk and limbs, pupillary dilation, elevations of blood pressure and pulse, urinary incontinence, and tongue biting. This is followed by a profound state of depressed consciousness (post-ictal state) which gradually improves over minutes to hours. The disorder may be cryptogenic, familial, or symptomatic (caused by an identified disease process). (From Adams et al., Principles of Neurology, 6th ed, p329)	Epilepsy, Grand Mal,Epilepsy, Major,Grand Mal Seizure Disorder,Major Motor Seizure Disorder,Seizure Disorder, Tonic Clonic,Convulsions, Grand Mal,Cryptogenic Tonic-Clonic Epilepsy,Epilepsy, Tonic-Clonic, Cryptogenic,Epilepsy, Tonic-Clonic, Familial,Epilepsy, Tonic-Clonic, Symptomatic,Familial Tonic-Clonic Epilepsy,Seizure Disorder, Grand Mal,Seizure Disorder, Major Motor,Symptomatic Tonic-Clonic Epilepsy,Tonic Clonic Convulsions,Tonic-Clonic Convulsion Disorder,Tonic-Clonic Convulsion Syndrome,Tonic-Clonic Seizure Disorder,Tonic-Clonic Seizure Syndrome,Convulsion Disorder, Tonic-Clonic,Convulsion Disorders, Tonic-Clonic,Convulsion Syndrome, Tonic-Clonic,Convulsion Syndromes, Tonic-Clonic,Convulsion, Grand Mal,Convulsion, Tonic Clonic,Convulsions, Tonic Clonic,Cryptogenic Tonic Clonic Epilepsy,Cryptogenic Tonic-Clonic Epilepsies,Disorder, Tonic-Clonic Convulsion,Disorder, Tonic-Clonic Seizure,Disorders, Tonic-Clonic Convulsion,Disorders, Tonic-Clonic Seizure,Epilepsies, Cryptogenic Tonic-Clonic,Epilepsies, Familial Tonic-Clonic,Epilepsies, Symptomatic Tonic-Clonic,Epilepsies, Tonic-Clonic,Epilepsy, Cryptogenic Tonic-Clonic,Epilepsy, Familial Tonic-Clonic,Epilepsy, Symptomatic Tonic-Clonic,Epilepsy, Tonic Clonic,Familial Tonic Clonic Epilepsy,Familial Tonic-Clonic Epilepsies,Grand Mal Convulsion,Grand Mal Convulsions,Grand Mal Epilepsy,Major Epilepsies,Major Epilepsy,Seizure Disorder, Tonic-Clonic,Seizure Disorders, Tonic-Clonic,Seizure Syndrome, Tonic-Clonic,Seizure Syndromes, Tonic-Clonic,Symptomatic Tonic Clonic Epilepsy,Symptomatic Tonic-Clonic Epilepsies,Syndrome, Tonic-Clonic Convulsion,Syndrome, Tonic-Clonic Seizure,Syndromes, Tonic-Clonic Convulsion,Syndromes, Tonic-Clonic Seizure,Tonic Clonic Convulsion,Tonic Clonic Convulsion Disorder,Tonic Clonic Convulsion Syndrome,Tonic Clonic Seizure Disorder,Tonic Clonic Seizure Syndrome,Tonic-Clonic Convulsion Disorders,Tonic-Clonic Convulsion Syndromes,Tonic-Clonic Epilepsies,Tonic-Clonic Epilepsies, Cryptogenic,Tonic-Clonic Epilepsies, Familial,Tonic-Clonic Epilepsies, Symptomatic,Tonic-Clonic Epilepsy,Tonic-Clonic Epilepsy, Cryptogenic,Tonic-Clonic Epilepsy, Familial,Tonic-Clonic Epilepsy, Symptomatic,Tonic-Clonic Seizure Disorders,Tonic-Clonic Seizure Syndromes
D004833	Epilepsy, Temporal Lobe	A localization-related (focal) form of epilepsy characterized by recurrent seizures that arise from foci within the TEMPORAL LOBE, most commonly from its mesial aspect. A wide variety of psychic phenomena may be associated, including illusions, hallucinations, dyscognitive states, and affective experiences. The majority of complex partial seizures (see EPILEPSY, COMPLEX PARTIAL) originate from the temporal lobes. Temporal lobe seizures may be classified by etiology as cryptogenic, familial, or symptomatic. (From Adams et al., Principles of Neurology, 6th ed, p321).	Epilepsy, Benign Psychomotor, Childhood,Benign Psychomotor Epilepsy, Childhood,Childhood Benign Psychomotor Epilepsy,Epilepsy, Lateral Temporal,Epilepsy, Uncinate,Epilepsies, Lateral Temporal,Epilepsies, Temporal Lobe,Epilepsies, Uncinate,Lateral Temporal Epilepsies,Lateral Temporal Epilepsy,Temporal Lobe Epilepsies,Temporal Lobe Epilepsy,Uncinate Epilepsies,Uncinate Epilepsy
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014635	Valproic Acid	A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS.	Dipropyl Acetate,Divalproex,Sodium Valproate,2-Propylpentanoic Acid,Calcium Valproate,Convulsofin,Depakene,Depakine,Depakote,Divalproex Sodium,Ergenyl,Magnesium Valproate,Propylisopropylacetic Acid,Semisodium Valproate,Valproate,Valproate Calcium,Valproate Sodium,Valproic Acid, Sodium Salt (2:1),Vupral,2 Propylpentanoic Acid
D014839	Vomiting	The forcible expulsion of the contents of the STOMACH through the MOUTH.	Emesis