Clinical Neuroscience

[Comparative efficacy of different muscle relaxants in the rehabilitation of post-stroke patients with spasticity]

LIPTÁK Judit

NOVEMBER 30, 2013

Clinical Neuroscience - 2013;66(11-12)

[Comparative efficacy of different muscle relaxants in the rehabilitation of post-stroke patients with spasticity 2013;66(11-12)]

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Clinical Neuroscience

[Post-operative management of primary glioblastoma multiforme in patients over 60 years of age]

DARÓCZI Borbála, SZÁNTÓ Erika, TÓTH Judit, BARZÓ Pál, BOGNÁR László, BAKÓ Gyula, SZÁNTÓ János, MÓZES Petra, HIDEGHÉTY Katalin

[Background and purpose - Optimal treatment for elderly patients with glioblastoma multiforme is not well defined. We evaluated the efficacy of post-operative radiotherapy with or without concomitant and/or adjuvant temozolomide in patients aged ≥60 years to assess survival and identify prognostic factors of survival. Methods - A retrospective analysis of overall survival and progression-free survival in patients with newly diagnosed glioblastoma multiforme aged ≥60 years treated with postoperative radiotherapy with or without temozolomide chemotherapy was conducted at our institutions. Prognostic factors were determined by univariate and multivariate analyses. Results - Of 75 study participants (54.7% male; median age at first diagnosis, 65.1 years), 29 (38.7%) underwent gross total resection, whereas others underwent partial resection or biopsy only. All but 1 patient received radiotherapy. Twenty patients received concomitant temozolomide only. Adjuvant temozolomide (1-50 cycles) was administered in 42 patients; 16 received ≥6 cycles. Median overall survival was 10.3 months. One- and 2-year overall survival rates were 42.6% and 6.7%, respectively. Median progression-free survival was 4.1 months. Radiochemotherapy was generally well tolerated. Median overall survival was 15.3 and 29.6 months for patients who received 6-12 cycles and >12 cycles of adjuvant temozolomide, respectively. There were no significant differences in overall survival between age groups (60-64, 65-69, and ≥70 years). Adjuvant temozolomide, Karnofsky performance status ≥70, and additional surgery after progression were significant prognostic factors of longer overall survival (p<0.05). Conclusions: Radiochemotherapy, including ≥6 cycles of adjuvant temozolomide, was safe and prolonged survival of glioblastoma patients aged ≥60 years. Aggressive therapy should not be withheld from patients aged ≥60 years with good performance status because of age.]

Clinical Neuroscience

[Treatment possibilities in advanced Parkinson’s disease]

TAKÁTS Annamária, NAGY Helga, RADICS Péter, TÓTH Adrián, GERTRÚD Tamás

[In the course of Parkinson’s disease, advanced and late stages can be distinguished. In the advanced stage, levodopa has good effect on motor symptoms, but patient care is often hindered by levodopa-induced complications such as motor fluctuation and dyskinesias. In the late stage levodopa response becomes poor, falls, dementia and psychotic symptoms appear and patients often need hospitalization. In the advanced stage, the quality of life may be improved better by device-aided therapy than by best oral medical treatment. The alternatives are apomorhin pump, levodopa carbidopa intestinal gel with pump and deep brain stimulation. The therapy plan should be based on the principle: “the right treatment, to the right patient, in the right time”.]

Clinical Neuroscience

[Status epilepticus and its treatment - Update 2013]

GYIMESI Csilla, JUHOS Vera, HORVÁTH Réka, BÓNÉ Beáta, TÓTH Márton, FOGARASI András, KOMOLY Sámuel, JANSZKY József

[Our study provides an overview of the results and guidelines published on the treatment of status epilepticus in the last five years. In recent years, as a result of scientific observations and collected data, the definition of and treatment approach to status epilepticus have been refined and novel therapeutic methods have been developed. The updated guidelines provide guidance in everyday medical practice. However, only a relatively small number of randomized studies are available on status epilepticus, especially in second-line treatment and third-line treatment, thus it is difficult to transfer the newest methods into clinical practice and into updates to treatment protocols. Due to the nature and epidemiology of the disease, the treatment of status epilepticus remains a daily challenge for healthcare providers. The key points of an effective treatment are: expeditiously initiating appropriate therapy, concurrent causal treatment and anticonvulsant therapy, early detection of nonconvulsive status epilepticus, as well as avoiding "overtreatment" and side effects.]

Clinical Neuroscience

[Psychosis as a process - New implications of staging models of schizophrenia]

HALMAI Tamás, TÉNYI Tamás

[The article discusses contributing factors in the pathogenesis of schizophrenia. In the last fifteen years, the emphasis has shifted from curative to prodromal and premorbid characteristics of later schizophrenia patients. Nevertheless, most studies are limited to the area of early detection and intervention of schizophrenia with much fewer focusing on actual prevention. A more general preventive approach not limited to psychotic condition is clearly underestimated. Following a review of current literature on prodromal approaches and identified premorbid markers of schizophrenia, the article outlines a possible trajectory of later psychotic condition with detectable, distinct stages from birth on. Based on this extended staging model involving neurotoxic impact and early prefrontal-limbic dysfunction, it argues for a refined, phase-specific treatment protocol including preventive interventions. Accepting a model of schizophrenia as an illness with detectable, phase-specific signs and symptoms from infancy on leads to the need to implement preventive interventions. Through this approach, we could, in the optimal case, be able to identify early signs of neuromotoric and cognitive dysfunction not specific for psychosis. Furthermore, it would be useful to lay greater emphasis on the detection of these early signs in the training of health care professionals. This approach calls for a close cooperation between psychologists, psychiatrists, neuropsychologists and special education experts and a change in the way we view psychotic illness.]

Clinical Neuroscience

[Diffusion MRI measured white matter microstructure as a biomarker of neurodegeneration in preclinical Huntington’s disease]

KINCSES Tamás Zsigmond, SZABÓ Nikoletta, TÓTH Eszter, ZÁDORI Dénes, FARAGÓ Péter, NÉMETH Dezsõ, JANACSEK Karolina, BABOS Magor, KLIVÉNYI Péter, VÉCSEI László

[Background - Huntington’s disease is a progressive neurodegenerative disease, genetically determined by CAG trinucleotide expansions in the IT15 gene. The onset of the symptoms is related to the number of CAG triplets. Because the patients are asymptomatic in the early phase of the disease, in vivo biomarkers are needed to follow up the neurodegeneration and to test putative neuroprotective approaches. One such promising biomarker is the diffusion MRI measured microstructural alteration of the white matter. Methods - Seven presymtomatic, mutation carriers and ten age-matched healthy controls were included in the study. Diffusion parameters were compared between groups and correlated with measures describing neurodegeneration. In order to reduce the possible misregistration bias due to atrophy the analysis was restricted to the core of each fibre bundles as defined by maximal fractional anisotropy (Tract- Based Spatial Statistics). Results - Decreased fractional anisotropy, along with increased mean, parallel and perpendicular diffusivity was found in white matter tracts, mainly in the corpus callosum. An inverse correlation was detected between the fractional anisotropy and neurodegeneration score (derived from the number of CAG triplets and the patient age) from the areas of the left precentral gyrus, frontal lobe, corpus callosum and the capsula extrema. Altered diffusion parameters are promising biomarkers of the neurodegeneration in Huntington’s disease.]

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Cases of inborn errors of metabolism diagnosed in children with autism

CAKAR Emel Nafiye, YILMAZBAS Pınar

Autism spectrum disorder is a neurodevelopmental disorder with a heterogeneous presentation, the etiology of which is not clearly elucidated. In recent years, comorbidity has become more evident with the increase in the frequency of autism and diagnostic possibilities of inborn errors of metabolism. One hundred and seventy-nine patients with diagnosis of autism spectrum disorder who presented to the Pediatric Metabolism outpatient clinic between 01/September/2018-29/February/2020 constituted the study population. The personal information, routine and specific metabolic tests of the patients were analyzed retrospectively. Out of the 3261 patients who presented to our outpatient clinic, 179 (5.48%) were diagnosed with autism spectrum disorder and were included in the study. As a result of specific metabolic examinations performed, 6 (3.3%) patients were diagnosed with inborn errors of metabolism. Two of our patients were diagnosed with classical phenylketonuria, two with classical homocystinuria, one with mucopolysaccharidosis type 3D (Sanfilippo syndrome) and one with 3-methylchrotonyl Co-A carboxylase deficiency. Inborn errors of metabolism may rarely present with autism spectrum disorder symptoms. Careful evaluation of the history, physical examination and additional findings in patients diagnosed with autism spectrum disorder will guide the clinician in the decision-making process and chose the appropriate specific metabolic investigation. An underlying inborn errors of metabolism may be a treatable cause of autism.

Clinical Neuroscience

Late simultaneous carcinomatous meningitis, temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting with mono-symptomatic vertigo – a clinico-pathological case reporT

JARABIN András János, KLIVÉNYI Péter, TISZLAVICZ László, MOLNÁR Anna Fiona, GION Katalin, FÖLDESI Imre, KISS Geza Jozsef, ROVÓ László, BELLA Zsolt

Although vertigo is one of the most common complaints, intracranial malignant tumors rarely cause sudden asymmetry between the tone of the vestibular peripheries masquerading as a peripheral-like disorder. Here we report a case of simultaneous temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting as acute unilateral vestibular syndrome, due to the reawakening of a primary gastric signet ring cell carcinoma. Purpose – Our objective was to identify those pathophysiological steps that may explain the complex process of tumor reawakening, dissemination. The possible causes of vestibular asymmetry were also traced. A 56-year-old male patient’s interdisciplinary medical data had been retrospectively analyzed. Original clinical and pathological results have been collected and thoroughly reevaluated, then new histological staining and immunohistochemistry methods have been added to the diagnostic pool. During the autopsy the cerebrum and cerebellum was edematous. The apex of the left petrous bone was infiltrated and destructed by a tumor mass of 2x2 cm in size. Histological reexamination of the original gastric resection specimen slides revealed focal submucosal tumorous infiltration with a vascular invasion. By immunohistochemistry mainly single infiltrating tumor cells were observed with Cytokeratin 7 and Vimentin positivity and partial loss of E-cadherin staining. The subsequent histological examination of necropsy tissue specimens confirmed the disseminated, multi-organ microscopic tumorous invasion. Discussion – It has been recently reported that the expression of Vimentin and the loss of E-cadherin is significantly associated with advanced stage, lymph node metastasis, vascular and neural invasion and undifferentiated type with p<0.05 significance. As our patient was middle aged and had no immune-deficiency, the promoting factor of the reawakening of the primary GC malignant disease after a 9-year-long period of dormancy remained undiscovered. The organ-specific tropism explained by the “seed and soil” theory was unexpected, due to rare occurrence of gastric cancer to metastasize in the meninges given that only a minority of these cells would be capable of crossing the blood brain barrier. Patients with past malignancies and new onset of neurological symptoms should alert the physician to central nervous system involvement, and the appropriate, targeted diagnostic and therapeutic work-up should be established immediately. Targeted staining with specific antibodies is recommended. Recent studies on cell lines indicate that metformin strongly inhibits epithelial-mesenchymal transition of gastric cancer cells. Therefore, further studies need to be performed on cases positive for epithelial-mesenchymal transition.

Clinical Neuroscience

Alexithymia is associated with cognitive impairment in patients with Parkinson’s disease

SENGUL Yildizhan, KOCAK Müge, CORAKCI Zeynep, SENGUL Serdar Hakan, USTUN Ismet

Cognitive dysfunction (CD) is a common non-motor symptom of Parkinson’s disease (PD). Alexithy­mia is a still poorly understood neuropsychiatric feature of PD. Cognitive impairment (especially visuospatial dysfunction and executive dysfunction) and alexithymia share com­mon pathology of neuroanatomical structures. We hypo­thesized that there must be a correlation between CD and alexithymia levels considering this relationship of neuroanatomy. Objective – The aim of this study was to evaluate the association between alexithymia and neurocognitive function in patients with PD. Thirty-five patients with PD were included in this study. The Toronto Alexithymia Scale–20 (TAS-20), Geriatric Depression Inventory (GDI) and a detailed neuropsychological evaluation were performed. Higher TAS-20 scores were negatively correlated with Wechsler Adult Intelligence Scale (WAIS) similarities test score (r =-0.71, p value 0.02), clock drawing test (CDT) scores (r=-0.72, p=0.02) and verbal fluency (VF) (r=-0.77, p<0.01). Difficulty identifying feelings subscale score was negatively correlated with CDT scores (r=-0.74, p=0.02), VF scores (r=-0.66, p=0.04), visual memory immediate recall (r=-0.74, p=0.01). VF scores were also correlated with difficulty describing feelings (DDF) scores (r=-0.66, p=0.04). There was a reverse relationship bet­ween WAIS similarities and DDF scores (r=-0.70, p=0.02), and externally oriented-thinking (r=-0.77,p<0.01). Executive function Z score was correlated with the mean TAS-20 score (r=-62, p=0.03) and DDF subscale score (r=-0.70, p=0.01) Alexithymia was found to be associated with poorer performance on visuospatial and executive function test results. We also found that alexithymia was significantly correlated with depressive symptoms. Presence of alexithymia should therefore warn the clinicians for co-existing CD.

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

Evaluation of the effectiveness of transforaminal epidural steroid injection in far lateral lumbar disc herniations

EVRAN Sevket, KATAR Salim

Far lateral lumbar disc herniations (FLDH) consist approximately 0.7-12% of all lumbar disc herniations. Compared to the more common central and paramedian lumbar disc herniations, they cause more severe and persistent radicular pain due to direct compression of the nerve root and dorsal root ganglion. In patients who do not respond to conservative treatments such as medical treatment and physical therapy, and have not developed neurological deficits, it is difficult to decide on surgical treatment because of the nerve root damage and spinal instability risk due to disruption of facet joint integrity. In this study, we aimed to evaluate the effect of transforaminal epidural steroid injection (TFESI) on the improvement of both pain control and functional capacity in patients with FLDH. A total of 37 patients who had radicular pain caused by far lateral disc herniation which is visible in their lumbar magnetic resonance imaging (MRI) scan, had no neurological deficit and did not respond to conservative treatment, were included the study. TFESI was applied to patients by preganglionic approach. Pre-treatment Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) scores of the patients were compared with the 3rd week, 3rd month and 6th month scores after the procedure. The mean initial VAS score was 8.63 ± 0.55, while it was 3.84 ± 1.66, 5.09 ± 0.85, 4.56 ± 1.66 at the 3rd week, 3rd month and 6th month controls, respectively. This decrease in the VAS score was found statistically significant (p = 0.001). ODI score with baseline mean value of 52.38 ± 6.84 was found to be 18.56 ± 4.95 at the 3rd week, 37.41 ± 14.1 at the 3rd month and 34.88 ± 14.33 at the 6th month. This downtrend of pa­tient’s ODI scores was found statistically significant (p = 0.001). This study has demonstrated that TFESI is an effective method for gaining increased functional capacity and pain control in the treatment of patients who are not suitable for surgical treatment with radicular complaints due to far lateral lumbar disc hernia.