Epileptic disorders : international epilepsy journal with videotape
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Altered mental state is a very common presentation in the elderly admitted to the emergency department. It has been determined that about 16% of patients aged 60 or older with confusion of unknown origin have non-convulsive status epilepticus. The diagnosis of non-convulsive status epilepticus is difficult in the elderly because possible aetiologies of confusion may present with the same clinical picture. Non-convulsive status epilepticus in the elderly carries major morbidity and mortality, attributable primarily to aetiology, and treatment is complex, involving treatment of the aetiology and concomitant medical illnesses, whilst balancing the side effects and drug interactions of antiepileptic drugs.
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To determine whether there is added benefit in detecting electrographic abnormalities from 16-24 hours of continuous video-EEG in adult medical/surgical ICU patients, compared to a 30-minute EEG. ⋯ This study indicates that if continuous video-EEG is not available, a 30-minute EEG in the ICU has a substantial diagnostic yield and will lead to the detection of the majority of epileptiform abnormalities. In a small percentage of patients, continuous video-EEG will lead to the detection of additional epileptiform abnormalities. In a sub-population, with a history of seizures prior to the initiation of EEG recording, the benefits of continuous video-EEG in monitoring seizure activity and influencing treatment may be greater.
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We evaluated the outcome of multimodality treatment in autoimmune limbic epilepsy in 3 consecutive patients (2 male and 1 female; age 33-55 years) presenting with a combination of focal non-convulsive status epilepticus, memory impairment, and psychosis. MRI showed right or bitemporal T2 or FLAIR hyperintensity. Video-EEG showed seizures of right temporo-occipital or bitemporal independent onset. ⋯ None had treatment-related complications. At the time of last follow-up, 2-3 months later, 2 patients remained seizure-free while 2 had residual memory impairment. Our findings suggest that multimodality treatment with a combination of conventional AEDs, immunomodulatory therapy, and rituximab is effective and safe in autoimmune limbic epilepsy.
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An historical overview is provided regarding the use of benzodiazepines for the treatment of acute prolonged convulsive seizures. It is clear that intravenous benzodiazepines remain a first step for the in-hospital treatment of prolonged seizures or status epilepticus. ⋯ In many cases, rectal diazepam is not socially acceptable anymore, and therefore more emphasis is now put on buccal, intranasal, and intramuscular administration. At present, based on the available data, midazolam is the product of choice for the acute treatment of prolonged convulsive seizures.
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It was recently suggested that early postoperative seizure relapse implicates a failure to define and resect the epileptogenic zone, that late recurrences reflect the persistence or re-emergence of epileptogenic pathology, and that early recurrences are associated with poor treatment response. Timing of antiepileptic drugs withdrawal policies, however, have never been taken into account when investigating time to relapse following epilepsy surgery. ⋯ For children in whom AED reduction is initiated following epilepsy surgery, the time to relapse is largely influenced by the timing of AED withdrawal, rather than by disease or surgery-specific factors. We could not confirm a relationship between time to recurrence and treatment response. Timing of AED withdrawal should be taken into account when studying time to relapse following epilepsy surgery, as early withdrawal reveals more rapidly whether surgery had the intended curative effect, independently of the other factors involved.