Clinical Neuroscience

[CLINICAL EXPERIENCE WITH LEVETIRACETAM FOR ADULTS WITH EPILEPSY]

BARCS Gábor, SZŰCS Anna

JANUARY 20, 2007

Clinical Neuroscience - 2007;60(01-02)

[Objective - A retrospective study to evaluate the efficacy of levetiracetam in the treatment of adult pharmacoresistant epilepsy. Method - Retrospective work up of our treatmentexperiences with 55 pharmacoresistant patients treated with levetiracetam (11 of them on monotherapy) for 6-39 months. Three treatment groups were analysed: idiopathic generalised epilepsy (9 patients); partial epilepsy (30 patients); malignant or malignated epileptic syndromes (16 patients). Result - Seven idiopathic generalised patients (77%) and 5 partial epilepsy patients (16%) became seizure free. One idiopathic generalised epileptic patient, 10 partial epilepsy patients (33%) significantly improved. Six patients (37%) from the group of malignant or malignated epileptic syndromes also significantly improved. Five of the improved idiopathic generalised epilepsy patients and 6 of the improved partial epilepsy patients received levetiracetam monotherapy. Altogether seven patients (12% of the whole population) relapsed after a 4-15 months improved period. Fifteen patients (27%) suffered side effects (mainly somnolence, headache, dizziness and irritability) improving after dose reduction of levetiracetam (generally below 2000 mg pro day). Conclusion - Levetiracetam is an effective, well tolerable, broad-spectrum drug as adjunctive treatment or monotherapy in adult patients unsuccessfully treated with other antiepileptic drugs.]

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Clinical Neuroscience

[APPLICATION OF FUNCTIONAL MR-IMAGES ACQUIRED AT LOW FIELD IN PLANNING OF NEUROSURGICAL OPERATION CLOSE TO AN ELOQUENT BRAIN AREA]

AUER Tibor, SCHWARCZ Attila, JANSZKY József, HORVÁTH Zsolt, KOSZTOLÁNYI Péter, DÓCZI Tamás

[Aim of the study - Presentation of functional MRI performed at low magnetic field (1 Tesla) for planning microsurgical operation in a patient suffering from tumor close to an eloquent brain area. Methods - Microsurgical removal navigated by frameless stereotaxy of an intrinsic tumor located in eloquent area is indicated if speech function is not damaged, i.e. exact localisation and relationship of the tumor and speech area can be defined. Before operation an optimized EPI based 2D sequence was applied to yield functional MR images. At the planning of the operation the paradigm used for the localization of the sensory language cortex contained passive listening to a text. Control investigations were performed one month postoperatively. A specific psychological test, as an additional investigation to estimate the accurate level of the sensory language function, was also conducted. Results - Low resolution (matrix of 64×64) functional MR images visualized sensory speech center and auditory cortex satisfactorily. The scans showed clearly that the Wernicke's region was situated just above the tumor (WHO grade II glioma), and this finding increased the safety of intraoperative localization and reduced the risk of morbidity. Control examinations revealed minimal decrease in sensory language function, however, it was not noticeable for either the patient or her surroundings. Conclusion - Optimized functional MR imaging performed at low magnetic field can support planning of neurosurgical operations and reduce the morbidity of microsurgical interventions.]

Clinical Neuroscience

[NONSENSE MUTATION 193C>T OF NEUROFIBROMATOSIS TYPE 2 - A NEUROSURGICAL CHALLENGE]

BOBEST Mátyás, TÓTH Csaba, GYURCSÓ Mária, MOLNÁR Mária Judit, GARZULY Ferenc

[A 15 years old male was operated because of incidentally found intercostal schwannoma. Two years later severe cerebellar ataxy and left sided anacusis developed. MRI revealed bilateral vestibularis tumors and multiple cervical intradural extramedullar myelon compressing lesions. After partial resection of the huge left sided cerebello-pontin tumor, histologically schwannoma, and the exstirpation of the multiple cervical meningiomas the patient died three months later due to septic complications. The 24 years old mother had been operated on similar lesions 12 years earlier, after two weeks postoperative period she died. Her 14 years old twins are living, a boy also with bilateral acustic tumours and a girl who is intact. Genetic investigation revealed C>T nonsense mutation at position 193 in the exon 2 of the NF2 gene. This mutation cause premature truncation of the gene protein and is probably in connection with the clinically severe phenotype. Early diagnosis of this type of neurofibromatosis is mandatory concerning the therapy.]

Clinical Neuroscience

[UPDATES IN PRACTICAL NEUROLOGY - I. THE PRINCIPLES OF MODERN LEVODOPA THERAPY IN PARKINSON’S DISEASE]

KLIVÉNYI Péter, VÉCSEI László

[Despite the levodopa is used for the treatment of Parkinson’s disease for a long time, recently many questions raised about its clinical use. New issues emerged based on the clinical trials, on latest neuroimaging data and on better understanding the pathomechanism of motor complications. These observations have changed the routine clinical use of levodopa. In this review we summarize the evidences and practical implications of levodopa therapy.]

Clinical Neuroscience

[CONGRESS CALENDAR]

[Congress calendar 2007;60(01-02)]

Clinical Neuroscience

[A CASE OF SCHIZENCEPHALY WITH POLYMICROGYRIA]

LEEL-ŐSSY Lóránt, SZŰCS Iván, ALMÁSI Kálmán

[A case of extensive bilateral frontotemporal schizencephaly is alleged - more extensively in the left hemisphere - which associated with polymicrogyria. The cortical anomaly was discovered only incidentally by MR examination in a 22 year-old man who suffered from headache due to a mild head trauma. Neurological examination proved to be negative. He had no complaints or symptoms a few weeks later. The developmental anomalies in corticalisation are shortly overviewed in this group together with the possible causing factors. It has been emphasized the importance of the precise intrauterine and/or postpartum differential diagnosis between schizencephaly, porencephaly and other failure in corticalisation.]

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Clinical Neuroscience

Retrospective comparison of efficacy of levetiracetam and lacosamide add-on treatments in patients with partial onset seizure

ACAR Türkan, ARAS Guzey Yesim

Objective - The study aims to retrospectively compare the efficacy of lacosamide (LCS) and levetiracetam (LEV) in add-on treatment in patients with partial-onset epilepsy. Material and method - Patients who have been followed-up for at least one year due to diagnosis of partial epilepsy between September 2014 and December 2017 and who had no seizure control, despite using at least two antiepileptic monotherapies, and therefore undergone LEV or LCS add-on treatment were retrospectively reviewed. Of the patients, total number of seizures and seizure control rates 6 months before and 3 and 6 months after the add-on treatment were compared. Results - There was no statistically significant difference between the 30 patients in the LEV group (12 females, 18 males, mean age 29.7±6.6) and 28 patients in the LCS group (12 females, 16 males, mean age 28.2±6.4) in terms of age, gender and the duration of illness. When the LEV and LCS groups were evaluated separately, the mean number of seizures within 3 and 6 months after the add- on treatment were significantly lower than the mean number of seizures in the last 6 months before the add-on treatment (p<0.005 and p<0.005 respectively). There was no statistically significant difference between the two groups when compared with each other in terms of the rate of decrease in number of seizures and seizure control before and after the add-on treatment (p=0.445 and p=0.238, respectively). Conclusion - LCS appears to be as effective as the currently well-established LEV in the treatment of partial onset seizures. No comparative study was found in the literature similar to this subject matter. There is a need for prospective studies for the comparison of the efficacies of these two drugs.

Clinical Neuroscience

[EXPERIENCE WITH LEVETIRACETAM IN CHILDHOOD EPILEPSY]

NEUWIRTH Magdolna, SARACZ Judit, HEGYI Márta, PARAICZ Éva, KOLLÁR Katalin, MÓSER Judit, ROSDY Beáta, HERCZEGFALVI Ágnes, FOGARASI András

[Objective - To evaluate the efficacy and tolerability of levetiracetam in children with drug resistant epilepsy from a retrospective study. Methods - We report the result of a study of 85 pediatric patients (mean 10.5 years, range: 1-24) with refractory generalized and focal epilepsy, who received levetiracetam as add-on treatment. The average duration of epilepsy was eight years, and the patient were treated with mean of 6.0 antiepileptic drugs befor levetiracetam was introduced. Results - Ten patients (12%) became seizuresfree, three (3%) responded with seizure reduction of more than 90%, 32 (38%) responded with seizure reduction of more than 50% following introduction of levetiracetam. No response to levetiracetam was reported in 34% (n: 29). Positive psychotopic effect was observed in 26 patient (30%). Mild to moderate side effects were reported in 11 patients (13%), consisting most frequently general behavioral changes, agression, sleep disturbances, but they ceased after decreasing the dose of levetiracetam. Mental retardation was associated with poor response and associated with more side effects. Conclusion - Levetiracetam is well tolerated new antiepileptic drug that may effectively improve seizures controll as an addon drug in resistant epilepsy in childhood with good tolerability.]

Clinical Neuroscience

[The Comprehensive Aphasia Test in Hungarian]

ZAKARIÁS Lilla, RÓZSA Sándor, LUKÁCS Ágnes

[In this paper we present the Comprehensive Aphasia Test-Hungarian (CAT-H; Zakariás and Lukács, in preparation), an assessment tool newly adapted to Hungarian, currently under standardisation. The test is suitable for the assessment of an acquired language disorder, post-stroke aphasia. The aims of this paper are to present 1) the main characteristics of the test, its areas of application, and the process of the Hungarian adaptation and standardisation, 2) the first results from a sample of Hungarian people with aphasia and healthy controls. Ninety-nine people with aphasia, mostly with unilateral, left hemisphere stroke, and 19 neurologically intact control participants were administered the CAT-H. In addition, we developed a questionnaire assessing demographic and clinical information. The CAT-H consists of two parts, a Cognitive Screening Test and a Language Test. People with aphasia performed significantly worse than the control group in all language and almost all cognitive subtests of the CAT-H. Consistent with our expectations, the control group performed close to ceiling in all subtests, whereas people with aphasia exhibited great individual variability both in the language and the cognitive subtests. In addition, we found that age, time post-onset, and type of stroke were associated with cognitive and linguistic abilities measured by the CAT-H. Our results and our experiences clearly show that the CAT-H provides a comprehensive profile of a person’s impaired and intact language abilities and can be used to monitor language recovery as well as to screen for basic cognitive deficits in aphasia. We hope that the CAT-H will be a unique resource for rehabilitation professionals and aphasia researchers in aphasia assessment and diagnostics in Hungary. ]