Clinical Neuroscience - 2019;72(09-10)

Clinical Neuroscience

SEPTEMBER 30, 2019

[The role of Hungarian-rooted scholars in the development of Otoneurology ]

TAMÁS T. László, GARAI Tibor, TOMPOS Tamás, MAIHOUB Stefani, SZIRMAI Ágnes

[Despite of the symptoms of vertigo have been known since thousands of years, it was evident by the research of the pioneer scientists of the 19th century (Flourens, Ménière, Breuer and others) that dizziness can also be attributed to inner ear disfunctions. The discovery of the vestibulo-ocular reflex was an important milestone (Endre Hőgyes, 1884). The vestibulo-ocular reflex stabilizes images on the retina by rotating the eyes at the same speed but in the opposite direction of head motion. The milestone discovery of Hőgyes by stimulating individual labyrinth receptors and recording the activity of eye muscles were verified by János Szentágothai in 1950. Low-frequency lesions of the angular vestibulo-ocular reflex can be investigated by caloric test (Robert Bárány,1906), high-frequency lesions by head impulse test (Gabor Michael Halmagyi and Ian Stewart Curthoys, 1988).]

Clinical Neuroscience

SEPTEMBER 30, 2019

[Newer studies on the strong link between sleep and epilepsy: Epilepsy as an epileptic transformation of sleep plastic functions]

HALÁSZ Péter

[Aims - Overview of the new data about the strong link of sleep and epilepsy and conjoining cognitive impairment. Methods - Search for relevant references and summary of our own research activity on the topic. Results - Strong interrealtionship exists between epilepsy and plastic brain functions (memory processing and synaptic homeostasis) and the working modes of NREM sleep. In the most frequent childhood and adult epilepsy networks responsible for plastic functions can be derailed to an epileptic level of excitability, and suffer a transitory or permanent epileptic transformation. Exampling on the three big epilepsies: absence epilepsy; medial temporal lobe epilepsy; and childhood idiopathic focal age dependent epilepsy spectrum we demonstrate the most important features of this epileptic transformation. The association of cognitive impairment to certain sleep dependent epilepsies gains explanation by the epilepsy caused interference with slow wave decline (ICFE) and memory consolidation (MTLE) during NREM sleep. This paper serves also to introduce the concept of sleep dependent system epilepsies. Conclusions - We provide evidences about shared mechanisms among sleep related epilepsies being the derailment of sleep plastic funcions toward exaggerated excitability determined by the inherent possibilities of the signal transduction properties. ]

Clinical Neuroscience

SEPTEMBER 30, 2019

[The Expanded Disability Status Scale scoring in patients with multiple sclerosis]

FÜVESI Judit

[Gait disturbance is a major symptom in patients with multiple sclerosis. The Expanded Disability Status Scale (EDSS) was first used in clinical trials of multiple sclerosis for the assessment of disability, however it has become more and more widely used in clinical practice as well. Nowadays its use is essential in application of the new diagnostic criteria, the new clinical form classification and in monitoring the efficacy of therapies. EDSS is based on a standardised neurological examination, but focuses on those symptoms that are frequent in multiple sclerosis. Based on the examination it assesses seven functional systems: visual, brainstem, pyramidal, cerebellar, sensory, bowel-bladder and cerebral functions. EDSS scores can be determined based on the scores given in the functional systems and on testing the walking distance. In newer versions the “Ambulation score” has been added. This chapter clarifies the scores based on the maximal walking distance and the need for a walking aid to walk this distance. The Neurostatus/EDSS training method improves the reproducibility of the standardised neurological examination that forms the basis of the EDSS scoring. Of the tests assessing walking, the Timed-25 Foot Walk Test and the self-administered 12-Item Multiple Sclerosis Walking Scale are suitable for routine evaluation of walking performance. An increase of more than 20% in the Timed-25 Foot Walk may be considered a significant change in gait. ]

Clinical Neuroscience

SEPTEMBER 30, 2019

[The role of epigenetic regulations in early childhood diseases]

TORY Vera

[With the acceptance of “The developmental origins of health and disease” concept in the 1990s, it became clear that epigenetic inheritance, which do not involve changes in the DNA sequence has important role in the pathogenesis of diseases. Epigenetic regulation serves the adaptation to the changing environment and maintains the reproductive fitness even on the drawback of increased risk of diseases in later life. The role of epigenetic mechanisms in chronic non-communicable diseases has been well established. Recent studies have revealed that epigenetic changes have also causal role in certain pediatric diseases. The review evaluates the recent epigenetic findings in the pathomechanism of common pediatric diseases. The wide range and long-lasting duration of epigenetic regulations give importance to the subject. Methods are already available to evaluate a part of the epigenetic changes in the clinical practice, presently aiming primarily the estimation of the disease risk or definition of diagnosis. Furthermore, there are already available limited means to influence the epigenetic regulation. ]

Clinical Neuroscience

SEPTEMBER 30, 2019

Modern health worries in patients with affective disorders. A pilot study

FREYLER Anett, SIMOR Péter, SZEMERSZKY Renáta, SZABOLCS Zsuzsanna, KÖTELES Ferenc

Background - Modern health worries (MHWs) are asso­ciated with various indicators of negative affect, conspiracy theories, and paranormal beliefs in healthy individuals. Purpose - The current pilot study aimed to assess MHWs and indicators of negative affect in patients with affective disorders (N = 66), as well as the possible associations between MHWs and paranoid and schizophrenic tendencies. Results - Compared to somatic patients, psychiatric patients showed higher levels of MHWs, somatosensory amplification, health anxiety, and somatic symptoms. Medium level associations between MHWs and paranoid (r = 0.35, p < 0.01) and schizophrenic (r = 0.37, p < 0.01) tendencies were also revealed. Somatosensory amplification (β = 0.452, p < 0.001) and paranoia (β = 0.281, p < 0.01) significantly contributed to MHWs in multiple linear regression analysis (R2 = 0.323, p < 0.001). Discussion - High (i.e. pathological) levels of negative affect can impact a number of related characteristics. Non-pathological paranoid tendencies might contribute to MHWs. The identification of paranoid tendencies seems to be relevant for the treatment of psychiatric patients exhibiting MHWs. Conclusion - Patients with affective disorders are characterized by higher levels of modern health worries, health anxiety, and somatosensory amplification. Modern health worries are associated with paranoid tendencies.

Clinical Neuroscience

SEPTEMBER 30, 2019

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.

Clinical Neuroscience

SEPTEMBER 30, 2019

Acute bilateral drop foot as a complication of prolonged squatting due to haemorrhoid

KOKSAL Ayhan, DOGAN Burcu Vasfiye

Drop foot is defined as difficulty of dorsiflexion of the foot and ankle due to weak anterior tibial, extensor hallucis longus and extensor digitorum longus muscles. Cauda equina syndrome, local peroneal nerve damage due to trauma, nerve entrapment, compartment syndrome and tumors are common etiologies. A 32-year-old male patient was applied with difficulty in dorsiflexion of both of his toes, feet and ankles after he had squatted in toilette for 6-7 hours (because of his haemorrhoid) after intense alcohol intake 2 weeks before. Acute, partial, demyelinating lesion in head of fibula segment of peroneal nerves was diagnosed by electromyography. This case was reported since prolonged squatting is an extremely rare cause of acute bilateral peroneal neuropathy. This type of neuropathy is mostly demyelination and has good prognosis with physical therapy and mechanical devices, but surgical intervention may be required due to axonal damage. People such as workers and farmers working in the squatting position for long hours should be advised to change their position as soon as the compression symptoms (numbness, tingling) appear.

Clinical Neuroscience

SEPTEMBER 30, 2019

Coexistence of cervical vertebral scalloping, pedicle deficiencies and dural ectasia in type I neurofibromatosis

YALDIZ Mahizer

Neurofibromatosis type 1 (NF-1; also known as Von Recklinghausen’s disease) is a common autosomal dominant disease that occurs in the general population at the rate of 1 in 3000. Many NF-1 patients present with spinal malformations. A 54-year-old female patient was admitted to the Outpatient Clinic of Dermatology with gradually increasing swelling and spots on the body that had been present for a long period of time. Cervical vertebral scalloping, pedicle deficiencies and dural ectasia (DE) were also detected. She was diagnosed with NF-1. NF-1 is routinely seen in dermatology practice. Coexistence of NF-1 with vertebral scalloping, pedicle deficiencies and DE rarely occurs. Our case is the second reported instance in the literature of NF-1 with a spinal anomaly in the cervical region, and the first reported instance of the coexistence of NF-1 with cervical vertebral scalloping, pedicle deficiencies and DE.