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Mesial temporal lobe epilepsy (MTLE) is the most common form of epilepsy, and the most medically intractable. An estimated one-quarter to one-half of the 400,000 patients in the United States with intractable epilepsy have MTLE. Generally, MTLE becomes intractable in adolescence and early adulthood. Persistence of seizures during this time commonly causes adverse social and psychological consequences which can become irreversible.
The current treatment of MTLE primarily consists of medications to control seizures. Usually surgical treatment is considered only if medications are not effective. Recent studies have shown that surgery can stop disabling seizures in 60 to 70% of patients with long standing MTLE. However, to date, no research study has examined surgery performed as an early therapy.
The goal of the study is to determine if more patients treated with early surgery become seizure free and have improved quality of life compared to similar patients who continue to receive antiepileptic medication only. This study will determine the difference in seizure frequency between the two groups and the impact of the two treatments on the quality of life of the participants.
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
anteromesial temporal resection, antiepileptic drugs
Barrow Neurological Institute
University of California, Los Angeles
Published on BioPortfolio: 2014-07-23T21:52:43-0400
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A neurosurgical procedure that removes the anterior TEMPORAL LOBE including the medial temporal structures of CEREBRAL CORTEX; AMYGDALA; HIPPOCAMPUS; and the adjacent PARAHIPPOCAMPAL GYRUS. This procedure is generally used for the treatment of intractable temporal epilepsy (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 (i.e., related to an identified disease process or lesion). (From Adams et al., Principles of Neurology, 6th ed, p321)
Epileptic condition in which adequate trials of two tolerated and appropriately chosen and used ANTIEPILEPTIC DRUGS schedules to achieve sustained seizure freedom failed.
A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge. Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy). (From Adams et al., Principles of Neurology, 6th ed, p313)
A disorder characterized by recurrent partial seizures marked by impairment of cognition. During the seizure the individual may experience a wide variety of psychic phenomenon including formed hallucinations, illusions, deja vu, intense emotional feelings, confusion, and spatial disorientation. Focal motor activity, sensory alterations and AUTOMATISM may also occur. Complex partial seizures often originate from foci in one or both temporal lobes. The etiology may be idiopathic (cryptogenic partial complex epilepsy) or occur as a secondary manifestation of a focal cortical lesion (symptomatic partial complex epilepsy). (From Adams et al., Principles of Neurology, 6th ed, pp317-8)
Epilepsy is defined as a disorder of brain function characterized by recurrent seizures that have a sudden onset. (Oxford Medical Dictionary). A seizure is caused by a sudden burst of excess electrical activity in the brain, causing a tempora...