Clinical Neuroscience

[Account on the events of XIXth Symposium Neuroradiologicum]

BARSI Péter

NOVEMBER 30, 2010

Clinical Neuroscience - 2010;63(11-12)

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Clinical Neuroscience

[Account on the scientific meeting of Környey Society in 2010. Part 2.]

Clinical Neuroscience

[Special concerns in medical care of severely demented patients suffering from Alzheimer disease]

RAJNA Péter

[While the expected life-time increases dementias will show a pandemic nature. Author analyses the special medical and social concerns of severe states of Alzheimer disease. Having introduced the epidemiologic, diagnostic data and forms of palliatíve therapies he concentrates on the hitherto unsolved problems of patients and caregivers. He belongs to the experts identifying the Alzheimer diseases as a forced aging process. Accepted the theory of L. Hayflick he evaluates the aging process in frame of an evolution model. He states that for aged human beings having already performed the task of reproduction further conditions of living circumstances and even that of death are no more programmed. This hypothesis may have a very negative content at the first sense. But the author rather considers the uncertainty of aging a positive message. He establishes that the occurrence of degenerative processes connecting the aging must be limited by preventive interventions far more efficient than the present possibilities. Concerning these steps we are still on the level of recommendations for preserving our general health and data of relevant science are quite contradictory. Although criteria of “healthy", “qualified” or “assumable” aging are getting defined, we still do not know exactly how we should live optimally and what should we do for this in different epochs of our life. Somatic and psychological parameters are lacking which would be able to signalize the actual level of the aging process in a given person. We, physicians, also do not have exact opinion on the level of severity of dementias at which the patient already lost his her features of personality and individuality on an irreversible way. We have no idea on the phase when the ratio of joy and suffer falls below the value of 1.0 because we still have no tool for its measure. The author pointed the necessity of acceptance of a new preventive attitude and application of new methods in the medical care of the forced or pathological aging, instead of the present approaches based on the “wait and treat” attitude. Because of the intensive increase of the patient population the identification and care of patients can be efficient with a much more involvement of the basic medical network. Financial background can be improved by new theoretical bases of criteria of the palliative treatments. But the direct professional programs can be planned after solution of the existing moral and social dilemmas.]

Clinical Neuroscience

[The concept of epileptic networks. Part 2.]

HALÁSZ Péter

[In this paper we investigate evidences supporting the network concept of epilepsies from different approaches. Firstly the functions of cortical networks in which most of the epileptic networks are embedded, are treated. Then the tentative characteristics of an epileptic network are enumerated and the conversion mechanisms from physiological to epileptic networks are analyzed. Later the role of neuronal oscillations in epileptic networks and aspects of epilepsies provoked by sensory and cognitive tasks is studied. Lastly new fMRI data in mapping BOLD networks underlying spike and seizure discharges are used as arguments in favour of the epileptic network hypothesis. In a second part the well-known epilepsies related, or probably related to physiological networks are shown. Finally consequences of the network approach for creating a new unified epilepsy classification are discussed.]

Clinical Neuroscience

[Evaluation of general well-being in adults with therapy resistant partial epilepsy taking oxcarbazepine]

BALOGH Attila, SZENTESI Annamária, JÁNOSI István

[Aims - An open label, national, multicenter, observational study had been conducted to evaluate of psychological general well-being in adults with therapy resistant partial epilepsy taking oxcarbazepine in Hungary. The possibility was examined to differentiate the improvement of the psychic well-being caused by the better status of the seizure disorder or caused by the psychopharmacological effect of the oxcarbazepine (in the next: OXC). Methods - 528 patients were asked to fill the Hungarian validated version of Psychological General Well-Being Schedule (PGWB), English version created by Harold J. Dupuy in 1984, at the baseline visit and after 12- week long duration OXC therapy regim. Finally the data of 332 patients could be evaluated per protocol, biostatistical analysis was carried out. Results - Based on data of 332 patients (per protocol population) the OXC treatment significantly (p<0.0001) improved all items of PGWB in clinically well- controlled (responder) epileptic patients and improved affective markers of patients with uncontrolled epilepsy also. In case of patients suffering from uncontrolled epilepsy the increase of psychical wellbeing items score influenced by biological effects were higher than those influenced by external effects. Conclusions - It can be stated that the adopted PGWB test battery is reliable quantitative method to examine the psychological well-being of patients suffering from partial epilepsy. It was observed that OXC has significant psychopharmalogical effect besides the well-known anticonvulsive property among large Hungarian population of partial epileptic patiens. In case of OXC therapy the positive psychic effect of the successful anticonvulsive treatment and the stabilization property on the affectivity of epileptic patients significantly separates. The OXC has no indication for the treatment of psychiatric conditions.]

Clinical Neuroscience

[Importance of hydrocephalus following severe brain injury during postacute rehabilitation]

DÉNES Zoltán, LANTOS Ágnes, SZÉL István, THOMKA Magdolna, VASS Mátyás, BARSI Péter

[Objectives - We report our experiences with hydrocephalus in early rehabilitation over a seven-year period. Method - Retrospective study in Brain Injury Rehabilitation Unit of the National Institute for Medical Rehabilitation, between 1 January 2002 and 31 December 2008. Results - At our institute in the last seven years, we treated 83 patients with secondary and six patients with primary hydrocephalus. The majority of hydrocephalus was of post traumatic origin (52) and remaining 23 following stroke (SAH, AVM, ICH) or brain operation (tumour - seven, and one cranioplasty), and all these patients had undergone ventricular shunt implantation. Mean age of patients was 36 (14-80) years. Hydrocephalus was diagnosed in our rehabilitation unit in 20 of 83 cases and the other patients were shunted before transfer to our unit. The median time point of shunting was 70 (range: 20-270) days after trauma, brain surgery or stroke. Post-operative complications were seen in 12 of 89 patients: six infections and six shunt failure and revision was necessary in 14%. In PTH cases, the post-operative improvement was seen in 40 of 52 patients being shunted and corresponded to FIM scores. At the other 31 cases, with non-traumatic origin, only two patients remain unchanged. Conclusions - Hydrocephalus is considered to be a frequent and important complication after severe brain damage. The incidence of hydrocephalus treated with shunt implantation in our neuro-rehabilitation unit was 4.4%. The postoperative improvement was 77%. Posttraumatic hydrocephalus concerns 5.2% of patients with severe TBI during last seven years in our institution. Diagnosis of posttraumatic hydrocephalus was established in 24%, and complication after shunt implantation (14%) was also recognized in the post-acute rehabilitation unit. It is strongly recommended for the team working at such type of units to obtain clinical practice. Teamwork, good cooperation between acute and postacutecare is necessary for successful rehabilitation of these patients.]

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[Risk of nonsteroidal antiinflammatory drugs. Focus on aceclofenac]

FARSANG Csaba

[Nonsteroidal antiinflammatory drugs (NSAIDs) are among the most frequently used pharmaceuticals. Nevertheless, a number of studies emphasized that NSAIDs were damaging not only the gastrointestinal (GI), but also the cardiovascular (CV) system, could increase the blood pressure, the frequency of coronary events (angina, myocardial infarction) and stroke incidence, as well as they might deterio­rate renal functions. The National Institute for Health and Care Excellence (NICE) did not find evidence that administering NSAIDs could increase the risk of developing COVID-19 or worsened the condition of COVID-19 patients. However, unwanted effects of specific drugs differ substantially in their occurrence and seriousness as well. It seemed to be for a long time that the NSAIDs provoked higher GI-risk was closely related to the COX1/COX2 selectivity, like the cardiovascular (CV) risk to the COX2/COX1 selectivity, however, the recent data did not prove it clearly. Based on the available literature while pondering the gastrointestinal and cardiovascular adverse events, among all NSAIDs the aceclofenac profile seemed to be the most favourable.]

Clinical Neuroscience

[Interdisciplinary approach of vestibular system impairment]

PONGRÁCZ Endre

[In the first part of this review the definition of vertigo/dizziness was discussed. The major difference between the two signs is the exsistence of the direction, which is specific for vertigo. Dizziness is a frequent complaint in the clinical practice. Its frequency is increasing with advance of age, to intimate the play of declining cognitive process in the pathogenesis of its. The popular health significance of vertigo is in the rowing number of the patients. The onset of the most cases with acute vertigo appears between secundums and minutes so the patients will be provided in circumstances of emergency department. First of all three form schould be take into account: neuronitis vestibularis, benign paroxysmal positional vertigo and Meniere syndrome. Without tipical periferal signs of vertigo, central cause should be searched, principally stroke (lysis possibility). The differential diagnose of the different dizzeness/vertigo forms according to the elapsed time of the onset or congenital and acquired nystagmus was created in tables. The recommendations of the therapy of acute and chronic dizziness/ vertigo syndroms are, lack of results of evidence based trials doubtful. The more often used drugs based on clinical trials are discussed as vinpocetine, betahistine and piracetam. The in vitro and in vivo data suggest that the last molecule is eligible to use both in periferal and central type of vertigo syndroms.]

Clinical Neuroscience

[Account on the scientific meeting of Környey Society in 2010. Part 2.]

Clinical Neuroscience

Role of positioning between trunk and pelvis in locomotor function of ambulant children with and without cerebral palsy

SANZ-MENGIBAR Manuel Jose, SANTONJA-MEDINA Fernando

Purpose - To understand if children with and without cerebral palsy share the same lumbar postural control threshold on the sagittal plane for the transition between each walking locomotor stage. Method - Observational analysis of sagittal trunk-pelvis kinematics of 97 children with cerebral palsy and 73 with typical development, according to their locomotor stage. Results - Among children with typical development, all average and minimum measurements of the sagittal lumbar curve during the gait events were correlated with age and the locomotor stages of development. Among children with cerebral palsy, there were significant correlations between all average and minimum values of the sagittal lumbar curve and locomotor stages of development but not age. Conclusions - We conclude that, for the same locomotor level, there are no common postural patterns between children with typical development and those with spastic bilateral cerebral palsy for the position between trunk and pelvis in the sagittal plane. Maximal lordosis reduction between trunk and pelvis may change with age or even training, but does not make a positive effect on the locomotor level, while basal and maintenance capacities could explain locomotor function. Trials that failed to assess quality of movement may now have a better understanding of how different interventions improve posture towards the next functional level.

Lege Artis Medicinae

[INSULIN ASPART IN THE CLINICAL PRACTICE]

JERMENDY György

[Insulin aspart (B28 Asp-insulin), which is produced by recombinant DNA technology, is a fast-acting insulin analogue. Due to the aspartate for proline substitution at position 28 of the Bchain, the insulin molecule's tendency for selfassociation is diminished, therefore, insulin aspart rapidly dissociates into dimeric and monomeric forms and absorbs quickly and easily after subcutaneous administration. Compared to human regular insulin, insulin aspart has a faster onset of activity, a higher plasma peak and a shorter duration of action. Overall, the pharmacokinetic profile of insulin aspart better mimics the physiological postprandial insulin secretion. Therefore, insulin aspart can be used for prandial insulin substitution in order to decrease postprandial blood glucose excursion. It should be administered immediately before meals, but some observations suggest that it can also be used after finishing meal. This allows a more flexible lifestyle for patients. Insulin aspart can be used in both type 1 and type 2 diabetes. Compared to regular human insulin, a moderate decrease in the HbA1c values and fewer nocturnal hypoglycaemic events are expected from insulin aspart use. Insulin aspart is appropriate for pump treatment as well. It has recently been approved for use in pregnancy, whereas for children and adolescents the expected benefits should be weighed against the more modest clinical experience available. Similarly to other insulin analogues, results of long-term clinical investigations with insulin aspart with regard to the development of complications are not yet available.]