Clinical Neuroscience

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

NOVEMBER 30, 2010

Clinical Neuroscience - 2010;63(11-12)

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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.]

Clinical Neuroscience

[Classical neurology: Adieu! Or: what is the future of hungarian neurology, fruitful transformation or preprogrammed death?]

HALÁSZ Péter, RAJNA Péter

[According to our oppinion several ideas, trends and aims of the traditional neurology became outworn. (So together with all the romantic beauty and hierarchic relations: Adieu!). The specialisation within the main body of the profession is unavoidable. A new, high quality, cost-benefit sensitive, institutional system should be built up, non essentially on inpatient, but on outpatient basis, supported by a personal and partnership oriented patient/doctor relationship, with multidiszciplinatory co-operations and team-work. Education should be also rebuilt accordingly. This analysis of the present situation and recommendations for the future plans was given - since our ages - without any personal interest or attraction. We tried to keep before us only the future of our beloved profession, the preservation of worths, and the exploration of the withdrawing dogmatic views. We invite everybody who is interested in the current questions of our profession to share their oppinion with the whole neurological society and take part in open discussion of these important questions.]

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[Association between cyclothymic affective temperament and hypertension]

NEMCSIK János, BATTA Dóra, KŐRÖSI Beáta, RIHMER Zoltán

[Affective temperaments (cyclothymic, hypertymic, depressive, anxious, irritable) are stable parts of personality and after adolescent only their minor changes are detectable. Their connections with psychopathology is well-described; depressive temperament plays role in major depression, cyclothymic temperament in bipolar II disorder, while hyperthymic temperament in bipolar I disorder. Moreover, scientific data of the last decade suggest, that affective temperaments are also associated with somatic diseases. Cyclothymic temperament is supposed to have the closest connection with hypertension. The prevalence of hypertension is higher parallel with the presence of dominant cyclothymic affective temperament and in this condition the frequency of cardiovascular complications in hypertensive patients was also described to be higher. In chronic hypertensive patients cyclothymic temperament score is positively associated with systolic blood pressure and in women with the earlier development of hypertension. The background of these associations is probably based on the more prevalent presence of common risk factors (smoking, obesity, alcoholism) with more pronounced cyclothymic temperament. The scientific importance of the research of the associations of personality traits including affective temperaments with somatic disorders can help in the identification of higher risk patient subgroups.]

Clinical Neuroscience

Neuroscience highlights: Main cell types underlying memory and spatial navigation

KRABOTH Zoltán, KÁLMÁN Bernadette

Interest in the hippocampal formation and its role in navigation and memory arose in the second part of the 20th century, at least in part due to the curious case of Henry G. Molaison, who underwent brain surgery for intractable epilepsy. The temporal association observed between the removal of his entorhinal cortex along with a significant part of hippocampus and the developing severe memory deficit inspired scientists to focus on these regions. The subsequent discovery of the so-called place cells in the hippocampus launched the description of many other functional cell types and neuronal networks throughout the Papez-circuit that has a key role in memory processes and spatial information coding (speed, head direction, border, grid, object-vector etc). Each of these cell types has its own unique characteristics, and together they form the so-called “Brain GPS”. The aim of this short survey is to highlight for practicing neurologists the types of cells and neuronal networks that represent the anatomical substrates and physiological correlates of pathological entities affecting the limbic system, especially in the temporal lobe. For that purpose, we survey early discoveries along with the most relevant neuroscience observations from the recent literature. By this brief survey, we highlight main cell types in the hippocampal formation, and describe their roles in spatial navigation and memory processes. In recent decades, an array of new and functionally unique neuron types has been recognized in the hippocampal formation, but likely more remain to be discovered. For a better understanding of the heterogeneous presentations of neurological disorders affecting this anatomical region, insights into the constantly evolving neuroscience behind may be helpful. The public health consequences of diseases that affect memory and spatial navigation are high, and grow as the population ages, prompting scientist to focus on further exploring this brain region.

Lege Artis Medicinae

[Focus on Lege Artis Medicinae (LAM)]

VASAS Lívia, GEGES József

[Three decades ago, LAM was launched with the goal of providing scientific information about medicine and its frontiers. From the very beginning, LAM has also concerned a special subject area while connecting medicine with the world of art. In the palette of medical articles, it remained a special feature to this day. The analysis of the history of LAM to date was performed using internationally accepted publication guidelines and scientific databases as a pledge of objectivity. We examined the practice of LAM if it meets the main criteria, the professional expectations of our days, when publishing contents of the traditional printed edition and its electronic version. We explored the visibility of articles in the largest bibliographic and scientific metric databases, and reviewed the LAM's place among the Hun­ga­rian professional journals. Our results show that in recent years LAM has gained international reputation des­pite publishing in Hungarian spoken by a few people. This is due to articles with foreign co-authors as well as references to LAM in articles written exclusively by foreign researchers. The journal is of course full readable in the Hungarian bibliographic databases, and its popularity is among the leading ones. The great virtue of the journal is the wide spectrum of the authors' affiliation, with which they cover almost completely the Hungarian health care institutional sys­tem. The special feature of its columns is enhanced by the publication of writings on art, which may increase Hungarian and foreign interest like that of medical articles.]

Lege Artis Medicinae

[A short chronicle of three decades ]

KAPRONCZAY Katalin

[Hungarian professional periodicals started quite late in European context. Their publish­ing, editing and editorial philosophy were equally influenced by specific historical and political situations. Certain breaking points of history resulted in termina­tion of professional journals (War of In­de­pendence 1848-1849, First and Se­cond World Wars), however there were pe­riods, which instigated the progress of sciences and founding of new scientific journals. Both trends were apparent in years after the fall of former Hungarian regime in 1990. The structure of book and journal publishing has changed substantially, some publishers fell “victim” others started successfully as well. The latters include the then-established publishing house Literatura Medica and its own scientific journal, Lege Artis Me­di­cinae (according to its subtitle: New Hun­garian Medical Herald) issued first in 1990. Its appearance enhanced significantly the medical press market. Its scientific publications compete with articles of the well-established domestic medical journals however its philosophy set brand-new trends on the market. Concerning the medical community, it takes on its problems and provides a forum for them. These problems are emerging questions in health care, economy and prevention, in close interrelation with system of public health institutions, infrastructure and situation of those providing individual health services. In all of them, Lege Artis Medicinae follows consequently the ideas of traditional social medicine.]

Clinical Neuroscience

Simultaneous subdural, subarachnoideal and intracerebral haemorrhage after rupture of a peripheral middle cerebral artery aneurysm

BÉRES-MOLNÁR Anna Katalin, FOLYOVICH András, SZLOBODA Péter, SZENDREY-KISS Zsolt, BERECZKI Dániel, BAKOS Mária, VÁRALLYAY György, SZABÓ Huba, NYÁRI István

The cause of intracerebral, subarachnoid and subdural haemorrhage is different, and the simultaneous appearance in the same case is extremely rare. We describe the case of a patient with a ruptured aneurysm on the distal segment of the middle cerebral artery, with a concomitant subdural and intracerebral haemorrhage, and a subsequent secondary brainstem (Duret) haemorrhage. The 59-year-old woman had hypertension and diabetes in her medical history. She experienced anomic aphasia and left-sided headache starting one day before admission. She had no trauma. A few minutes after admission she suddenly became comatose, her breathing became superficial. Non-contrast CT revealed left sided fronto-parietal subdural and subarachnoid and intracerebral haemorrhage, and bleeding was also observed in the right pontine region. The patient had leucocytosis and hyperglycemia but normal hemostasis. After the subdural haemorrhage had been evacuated, the patient was transferred to intensive care unit. Sepsis developed. Echocardiography did not detect endocarditis. Neurological status, vigilance gradually improved. The rehabilitation process was interrupted by epileptic status. Control CT and CT angiography proved an aneurysm in the peripheral part of the left middle cerebral artery, which was later clipped. Histolo­gical examination excluded mycotic etiology of the aneu­rysm and “normal aneurysm wall” was described. The brain stem haemorrhage – Duret bleeding – was presumably caused by a sudden increase in intracranial pressure due to the supratentorial space occupying process and consequential trans-tentorial herniation. This case is a rarity, as the patient not only survived, but lives an active life with some residual symptoms.