Clinical Neuroscience

[Symptomatic subependymomas of the ventricles. Review of twenty consecutive cases]


NOVEMBER 28, 2014

Clinical Neuroscience - 2014;67(11-12)

[Background and purpose - Intraventricular subependymomas are rare benign tumors, which are often misdiagnosed as ependymomas. To review the clinicopathological features of subependymomas. Patient selection and methods - Retrospective clinical analysis of intraventricular subependymomas and systematic review of histological slides operated on at our center between 1985 and 2005. Results - Twenty subependymomas presented at the median age of 50 years (range 19-77). Two (10%) were found in the third, three (15%) in the forth, and 15 in the lateral ventricles. There was male preponderance (12 vs. 8). Ataxia (n=13) and papilledema (n=7) were the most common clinical presentations. Fifteen patients underwent gross total resection, and five had subtotal resection. None of the cases showed mitotic figures, vascular endothelial proliferation or necrosis. Cell proliferation marker MIB-1 activity (percentage of positive staining tumor cells) ranged from 0 to 1.4% (mean 0.3). Two cases were treated with preoperative radiation therapy (50 Gy) before the CT era, three other patients received postoperative radiation therapy for tumors originally diagnosed histologically as low grade ependymomas. Three patients (15%) died of surgical complication between one and three months postoperatively, and three patients died of unrelated causes in eight, 26 and 110 months. Fifteen patients were alive without evidence of tumor recurrence at a median follow-up time of 10 years. Conclusion - Subependymomas are low-grade lesions and patients do well without adjuvant radiotherapy. Small samples from more cellular areas may be confused with low grade ependymomas, and unnecessary radiotherapy may follow. Recurrences, rapid growth rates should warrant histological review, as hypocellular areas of ependymomas may also be a source of confusion.]



Further articles in this publication

Clinical Neuroscience

[Critical illness associated neuromuscular disorders - Keep them in mind]

NEMES Réka, MOLNÁR Levente, FÜLEP Zoltán, FEKETE Klára, BERHÉS Mariann, FÜLESDI Béla

[Neuromuscular disorders complicating sepsis and critical illness are not new and scarce phenomena yet they receive little attention in daily clinical practice. Critical illness polyneuropathy and myopathy affect nearly half of the patients with sepsis. The difficult weaning from the ventilator, the prolonged intensive care unit and hospital stay, the larger complication and mortality rate these disorders predispose to, put a large burden on the patient and the health care system. The aim of this review is to give an insight into the pathophysiological background, diagnostic possibilities and potential preventive and therapeutic measures in connection with these disorders to draw attention to their significance and underline the importance of preventive approach.]

Clinical Neuroscience

[The interactive neuroanatomical simulation and practical application of frontotemporal transsylvian exposure in neurosurgery]


[Background and purpose - There is an increased need for new digital education tools in neurosurgical training. Illustrated textbooks offer anatomic and technical reference but do not substitute hands-on experience provided by surgery or cadaver dissection. Due to limited availability of cadaver dissections the need for development of simulation tools has been augmented. We explored simulation technology for producing virtual reality-like reconstructions of simulated surgical approaches on cadaver. Practical application of the simulation tool has been presented through frontotemporal transsylvian exposure. Methods - The dissections were performed on two cadaveric heads. Arteries and veins were prepared and injected with colorful silicon rubber. The heads were rigidly fixed in Mayfield headholder. A robotic microscope with two digital cameras in inverted cone method of image acquisition was used to capture images around a pivot point in several phases of dissections. Multilayered, high-resolution images have been built into interactive 4D environment by custom developed software. Results - We have developed the simulation module of the frontotemporal transsylvian approach. The virtual specimens can be rotated or tilted to any selected angles and examined from different surgical perspectives at any stage of dissections. Important surgical issues such as appropriate head positioning or surgical maneuvers to expose deep situated neuroanatomic structures can be simulated and studied by using the module. Conclusion - The simulation module of the frontotemporal transsylvian exposure helps to examine effect of head positioning on the visibility of deep situated neuroanatomic structures and study surgical maneuvers required to achieve optimal exposure of deep situated anatomic structures. The simulation program is a powerful tool to study issues of preoperative planning and well suited for neurosurgical training.]

Clinical Neuroscience

[Hungarian experiences with levodopa/carbidopa intestinal gel in the treatment of advanced Parkinson’s disease]

NAGY Helga, TAKÁTS Annamária, TÓTH Adrián, BERECZKI Dániel, KLIVÉNYI Péter, DÉZSI Lívia, DIBÓ György, VÉCSEI László, KOVÁCS Norbert, ASCHERMANN Zsuzsa, KOMOLY Sámuel, VARANNAI Lajos, ZEMLÉNYI Gyöngyi

[In the advanced Parkison’s disease (PD) the late complications of levodopa therapy have to be considered: motor and/or non-motor fluctuations with or without disturbing dyskinesias. The non-motor fluctuations often influence the quality of life (QoL) in a much more negative way compared with the motor symptoms. In the treatment of advanced PD there are several device-aided methods - deep brain stimulation, apomorphine pump, levodopa/carbidopa intestinal gel (LCIG ) - to improve the symptoms, the QoL, sometimes even in an individual, tailored custom form. The LCIG therapy was introduced in Hungary in 2011. Here we summarize the data of our patients: we have tested almost 60 patients and in 43 cases we have started this treatment. We analyze the duration of illness, levodopa therapy, motor and non-motor fluctuation of patients and present our experiences with the test phase and the chronic LCIG therapy via PEG/PEJ implantation. We paid attention to the surgery and device - depending side effects. Our experiences are similar to the international data. In patients selection „the right treatment, to the right patient, in the right time” is of importance.]

Clinical Neuroscience

[Tailored cranioplasty using CAD-CAM technology]


[Objective - The majority of cranial defects are results of surgical intervention. The defect must be covered within resonable period of time usually after 4-6 week given the fact that the replacement of bone improve the brain circulation. Number of surgical techniques and materials are available to perform cranioplasty. Due to favorable properties we chosed ultra high molecular weight polyethylene as material. In this paper the authors show a procedure which allows tailored artificial bone replacement using state of art medical and engineering techniques. Methods - between 2004 and 2012, 19 patients were operated on cranial bone defect and a total of 22 3D custom- designed implants were implanted. The average age of patients was 35.4 years. In 12 patients we performed primary cranioplasty, while seven patients had the replacement at least once. Later the implants had to be removed due to infection or other causes (bone necrosis, fracture). All patients had native and bone- windowed 1 mm resolution CT. The 3D design was made using the original CT images and with design program. Computer controlled lathe was used to prepare a precise-fitting model. During surgery, the defect was exposed and the implant was fixed to normal bone using mini titanium plates and screws. All of our patients had control CT at 3, 6 and12 months after surgery and at the same time neurological examination. Results - Twenty-one polyethylene and one titanium implants were inserted. The average follow-up of the patients was 21.5 months, ranged from two to 96 months. We follow 12 patients (63.15%) more than one year. No intraoperative implant modifications had to be made. Each of the 22 implant exactly matched the bone defect proved by CT scan. No one of our patients reported aesthetic problems and we did not notice any kind of aesthetic complication. We had short term complication in three cases due to cranioplasty, subdural, epidural haemorrhage and skin defect. Conclusion - Polyethylene is in all respects suitable for primary and secondary cranioplasty. Combined with 3D CADCAM method excellent aesthetic and functional result was achieved. In our study no case of infection occured. Proper preoperative preparation is important.]

Clinical Neuroscience

[From life events to symptoms of anxiety and depression: the role of dysfunctional attitudes and coping]


[The aim of the present study was a systematic path-analytical investigation between the effects of life events, dysfunctional attitudes and coping strategies in relation with the exhibited depressive and anxiety symptoms in patients with mental disorders. Methods - Self-report data of 234 patients from our outpatient psychotherapy unit were analyzed. Life events, dysfunctional attitudes, coping strategies as well as symptoms of anxiety and depression were assessed by self-administerd questionnaires. Statistical methods included structural equation modelling, which enables the estimation of the magnitude and strength of individual variables within an overarching casual model, thus yielding a complex view on the possible processes underlying the development of the clinical symptoms of anxiety and depression. Results - Our findings indicate that both the number of negative life events and their subjectively experienced intensity contributed to the increase of dysfunctional attitudes. The presence of dysfunctional attitudes decreased the use of problem-focused coping strategies and increased the use of emotion-focused coping strategies. The use of problem-focused coping decreased symptom occurrence and emotion-focused coping strategies increased the frequency of symptoms of anxiety and depression. Our findings suggest that dysfunctional need for achievement and perfectionism directly increase the probability of depressive symptom manifestation. The attitude of external locus of control showed a significant relationship with anxiety symptoms through emotion-focused coping strategies and directly as well. Conclusion - Restructuring dysfunctional attitudes and developing problem-focused coping strategies are an important part of psychotherapeutic interventions aiming to decrease anxiety and depressive symptoms.]

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Clinical Neuroscience

Association of anterior thoracic meningocele and azygos lobe of the lung

DENIZ Ersay Fatih, SENAYLI Atilla, BICAKCI Ünal

Here we report an anterior thoracic meningocele case. Twoyears- old female patient was presented with kyphosis. Azygos lobe of the lung was also demonstrated during radiological studies. Posterolateral thoracotomy incision and extralpeural approach was performed for excision of the anterior meningocele to untether the cord. Although both anomalies are related to faulty embryogenesis and it is well known that faulty embryogenesis may also reveal coexisting abnormalities, we could not speculate a common mechanism for anterior thoracic meningocele and azygos lobe of the lung association.

Lege Artis Medicinae


KAHÁN Zsuzsanna

[Breast cancer is the most common malignancy in women in developed countries. The development of most breast cancers is related to various hormonal effects, while 10% is associated with inherited gene mutations. Most of the primary prevention methods aim at decreasing the effects of hormones, but education on proper lifestyle is also an important risk-lowering method. The primary treatment of early breast cancer is usually breast-conserving surgery, either with the targeted removal of regional lymph nodes (by sentinel lymph node labelling) or with axillary block-dissection. The aim of postoperative radiotherapy is the eradication of the tumour cells left behind. Beside the locoregional tumour control this also plays a role in the prevention of recurrence or a secondary systemic dissemination. Adjuvant systemic treatments are used for the eradication of disseminated microscopic tumour foci. The use of modern adjuvant treatments may reduce death from the disease by up to 50%. The risks of relapse or death may be estimated based on established prognostic factors. While in low-risk patients it is not worth starting medical treatment, especially in view of the side effects, while in other cases chemo- or hormonal therapy may save the patient's life. The choice of the medical treatment should also depend on the patient's general health, the concomittant diseases and her preferences. The collaboration of the various specialists involved in the care of breast cancer patients can best take place at specialised breast centres that are equipped with the necessary technical basis, knowledge and professional experience.]

Clinical Oncology

[Current strategy in the surgical treatment of abdominal hematogenous metastases]


[The cornerstone of the therapy of most tumors is still the resecability of the primary tumor: if the cancer can be removed, the chance for recovery will signifi cantly increase. The development of the complex oncologic therapy lead also to the headway of metastasis surgery that used to be a rarity few decades ago. Based on the fi ndings of recent molecular genetic research and multimodular oncologic treatment it was found in more and more tumors that the removal of their metastasis shows benefi t for patients with advanced disease. In order to operate metastatic disease successfully extensive surgical experience and the knowledge of the tumors biologic behavior are required. Thus, the continuous interdisciplinary cooperation and the role of the oncoteam are essential to correct therapeutic decisions. In this review we discuss the possible surgical interventions of abdominal hematogenous metastases of different tumors.]

Clinical Neuroscience



[The most effective type of epilepsy surgery in adults is temporal lobe epilepsy (TLE) surgery. Three quarter of the patients become seizure free, however the remaining patients experience seizures after resection. In our study we analyzed retrospectively the possible electro-clinical, neuroimaging and surgery-related outcome predictors in 94 adult patients who had anterior temporal lobectomy (ATL) from the material of Epilepsy Centre of the National Institute of Psychiatry and Neurology, Budapest since the beginning of the surgery program in 1989 until 2001. Three outcome endpoints were chosen: the seizure status at the last visit, the longest seizure free period and the time to the first non-acute postoperative seizure. The predictors were assessed by multivariate and Cox regression methods. After one year of surgery 72% of the patients were seizure free, after two years 67% and after five years 59%. Factors predicting favorable outcome in TLE surgery were: typical temporomesial aura, strictly unilateral interictal anterotemporal spikes, unilateral ictal onset, slow contralateral propagation, hippocampal sclerosis (HS) as etiology. Factors predicting poor outcome in TLE surgery were: increase in seizure frequency in the last two preoperative years, presence of preoperative psychiatric disturbances, ictal contralateral propagation, MRI lesion distant from the surgery site, incongruency of data of preoperative investigations, postoperative sequels and non-HS type MR residuum.]

Clinical Oncology

[Up-to-date treatment of head and neck cancers]


[The head and neck squamous cell cancer is often detected at an advanced stage, resulting in dismal prognosis despite the relevant developments of the oncotherapy in the last decades. The introduction of new techniques, new drugs and combinations though improves the survival for certain subgroups of patients, meanwhile the organ-function preservation and side effects reduction approaches lead to improved quality of life. The preventive-supportive care prior and during the therapy (dental care, nutrition, toxicity management) and the complex rehabilitation has paramount importance. MRI and 18FDG PET-CT and the advanced methods of molecular pathology became part of the diagnostic work up. The selection of the therapy based on the tumor characteristics, HPV detection, on the patient’s condition and wishes, as well as on multi-disciplinary team decision based on the available technical options. Early stage tumors can be successfully treated either by surgery alone or by radiation therapy. For locally advanced cases concomittant chemo-radiotherapy stays in the axis of the complex management using advanced radiation technique (IGRT-adaptive- IMRT) with cisplatin (or if contraindicated with cetuximab), which could be complemented by induction chemotherapy and/or surgery. Several new approaches are currently being tested in clinical studies after establishment of cisplatine-cetuximab treatment for recurrent/metastatic tumors. In the future, detection of molecular processes and driver mutations could result in development of more effective targeted anti-tumor agents, and individual molecular tumor profi le guided therapy, including the various forms and combinations with emerging immunotherapy.]