Clinical Neuroscience Proceedings

Poster Sessions

MAY 13, 2016

Clinical Neuroscience Proceedings - 2016;1(01)

Posters of the Meeting of the European Society of Neurosonology and Cerebral Hemodynamics, 2016

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Keynote lectures of the Meeting of the European Society of Neurosonology and Cerebral Hemodynamics, 2016

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Lectures of the Meeting of the European Society of Neurosonology and Cerebral Hemodynamics, 2016

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Clinical Neuroscience

[The role of sleep in the relational memory processes ]

CSÁBI Eszter, ZÁMBÓ Ágnes, PROKECZ Lídia

[A growing body of evidence suggests that sleep plays an essential role in the consolidation of different memory systems, but less is known about the beneficial effect of sleep on relational memory processes and the recognition of emotional facial expressions, however, it is a fundamental cognitive skill in human everyday life. Thus, the study aims to investigate the effect of timing of learning and the role of sleep in relational memory processes. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. Our results suggest that the timing of learning and sleep plays an important role in the stabilizing process of memory representation to resist against forgetting.]

Clinical Neuroscience

How to minimize the risk for headache? A lumbar puncture practice questionnaire study

JONATAN Salzer, RAJDA Cecilia, SUNDSTRÖM Peter, MATTIAS Vågberg, VÉCSEI László, ANDERS Svenningsson

Background - To lower the risk for post lumbar puncture (LP) headache the American Academy of Neurology (AAN) recommended using small bore atraumatic needles together with stylet reinsertion in a report from 2005. It is unclear whether these recommendations are followed or not. Objectives - To investigate the diagnostic LP preferences with respect to the AAN guidelines among neurologists by use of a short online questionnaire, and to review previously published literature on the subject. Results - A total of 284 respondents who performed diagnostic LPs completed the questionnaire. Almost half (41%) answered that they always use atraumatic needles. The most common reason (73%) for not using atraumatic needles was that these were not available. Less than half of the respondents who performed LPs had knowledge about the AAN guidelines for diagnostic LPs, and 48-76% agreed with the different recommendations therein. Five previously (1998-2015) published studies investigating LP practice among neurologists were identified. The reported frequency of atraumatic needle use (always/routinely) varied between 2 and 16%. Discussion - Atraumatic needle use was more common in this study compared with previous publications. There is still skepticism regarding some of the AAN recommendations, and needle availability appears to be the most important factor preventing atraumatic needle use. To increase the use of atraumatic needles we may perform additional studies investigating their potential benefits, and arrange training sessions for neurologists to increase their awareness and level of comfort with the atraumatic LP technique.

Clinical Neuroscience

[The impact of neuroleptic medication on seizure threshold and duration in electroconvulsive therapy]

GAZDAG Gábor, BARNA István, IVÁNYI Zsolt, TOLNA Judit

[Introduction - In most patients diagnosed with psychotic depression or schizophrenia and treated with electroconvulsive therapy, parallelly administered antipsychotic medication cannot be stopped. Antipsychotic drugs can influence both seizure threshold and seizure activity in different ways. Patients and method - The present study processes the data of 77 patients treated parallelly with electroconvulsive therapy and antipsychotic drugs. Oral doses of the antipsychotic medication administered the day before the electroconvulsive therapy, stimulus intensity, seizure durations, and impedance were analysed from session to session. Results - One group of antipsychotics (haloperidol, fluphenazine, risperidone, sulpirid) was not found to influence seizure activity: there was no significant difference in EEG and EMG registered seizure duration or in stimulus intensity between the treated and non-treated group. However, significant difference was found between the next treated and non-treated groups in 40% of the sessions in case of olanzapine, in 50% of the sessions in case of clozapine and in 57% of the sessions in case of zuclopenthixol in EEG or EMG registered seizure duration as well as in stimulus intensity. In the third group (quetiapine) there was a significant difference in each session (2nd session: EMG, p=0.02; 5th session: EEG, p=0.05, EMG, p=0.04). Most of the antipsychotics (olanzapine, clozapine, zuclopenthixol) have been shown to possess epileptogenic properties; only quetiapine reduces seizure activity. Conclusion - In the clinical use of olanzapine, clozapine and zuclopenthixol seems epileptogenic, whereas in the case of quetiapine seizure reducing properties must be taken into account. Together with the consideration of the accompanying somatic and neurologic disturbances and with the concomitant medications this can influence the treatment of choice.]

Lege Artis Medicinae

[Pilomatrix carcinoma with a lymph node metastasis - First Hungarian publication of a rare case]

VAJDA Adrienne, LÉVAY Bernadett

[INTRODUCTION - Pilomatrix carcinoma is a very rare malignant tumour, which derives from hair matrix cells. The male:female ratio among patients is 4:1, the mean age of patients is 45 years. This tumour type is very aggressive and grows slowly. CASE REPORT - The authors describe the case of a 37-year-old man who presented in 2004 with an approximately 2×2 cm, compact lesion tumour in the lumbar region. The tumour was excised and diagnosed as carcinoma sebaceum on the basis of histological examination. Several weeks after surgery, a protruding, semi-spherical lesion with a diameter of 2 cm appeared in the scar. The patient was referred to our hospital for excision of this lesion and for assessing the possibility of Muir-Torre syndrome. The examinations did not indicate the presence of any internal tumours. The recurrent tumour was excised with a 2 cm intact margin. Histological examination confirmed the diagnosis of pilomatrix carcinoma. In 2005, two new tumours were excised and semithick skin was transplanted in several sessions. At an oncological follow-up examination in 2009, a 13×7 mm lymph node was felt in the righ inguinal region, which was found to be a metastasis of pilomatrix carcinoma on the basis of aspiration cytology. Surgical block dissection was performed, followed by postoperative radiotherapy at a dose of 25×2 Gy. At present, the patient is symptom- free. Thoracic-abdominal CT and clinical examination performed in early June 2011 did not indicate progression of the original disease. CONCLUSION - Pilomatrix carcinoma with a lymph node metastasis has not been previously reported in Hungarian. The diagnosis was established on the basis of histological examination, which was indispensable for successful treatment.]

Clinical Neuroscience

[A case of meningioma with supra-infratentorial extent]

PÁSZTOR Emil

[The author describes a case of a surgically resolved meningioma located in the supra- and infratentorial space. The tumour was mostly located infratentorially and grew laterally over the tentorium. The 46-year-old woman underwent surgery in two sessions. After surgery, there was rapid clinical improvement. The interesting aspect of this case is the location of the tumour and its surgical resolution.]