Clinical Neuroscience

[Recommendation for treatment options in advanced Parkinson's disease]

ASCHERMANN Zsuzsanna, DIBÓ György, KLIVÉNYI Péter, KOVÁCS Norbert, KOVÁCS Tibor, TAKÁTS Annamária, GERTRÚD Tamás, VARANNAI Lajos

NOVEMBER 30, 2016

Clinical Neuroscience - 2016;69(11-12)

DOI: https://doi.org/10.18071/isz.69.0367

[The treatment of advanced Parkinson’s disease is challenging for both physicians and caregivers. The device-aided therapies need expertise and dedicated hospital centers. In this summary we have concluded the available data and recommendation for the treatment options in advanced Parkinson’s disease and adopt them to the daily care in Hungary. ]

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Clinical Neuroscience

[Behavioral and cognitive profile of corpus callosum agenesia - Review]

LÁBADI Beatrix, BEKE Anna Mária

[Introduction - Agenesis of corpus callosum is a relatively frequent congenital cerebral malformation including dysplasia, total or partial absence of corpus callosum. The agenesis of corpus callosum can be occured in isolated form without accompanying somatic or central nervous system abnormalities and it can be associated with other central nervus system malformations. The behavioral and cognitive outcome is more favorable for patients with isolated agenesis of corpus callous than syndromic form of corpus callosum. The aim of this study is to review recent research on behavioral and social-cognitive functions in individuals with agenesis of corpus callosum. Developmental delay is common especially in higher-order cognitive and social functions. Methods - An internet database search was performed to identify publications on the subject. Results - Fifty-five publications in English corresponded to the criteria. These studies reported deficits in language, social cognition and emotions in individuals with agenesis of corpus callosum which is known as primary corpus callous syndrome. Discussion - The results indicate that individuals with agenesis of corpus callosum have deficiency in social-cognitive domain (recognition of emotions, weakness in paralinguistic aspects of language and mentalizing abilities). The impaired social cognition can be manifested in behavioral problems like autism and attention deficit hyperactivity disorder.]

Clinical Neuroscience

[The role of zonisamide in the treatment of women with epilepsy]

JUHOS Vera

[The antiepileptic drugs can effect fertility, development of gynecological diseases and occurence of sexual problems. They can cause a number of “cosmetic” problem and also influence the selection of safe contraceptive method. Many antiepileptic drugs can cause congenital malformations or affect the new-born child’s psychomotor and cognitive development, therefore during pregnancy should be treated with extreme caution in women with epilepsy. Most types of epilepsies accompany the patient through their whole life. Women spend almost the third of their lives after menopause and - due to the formation of associated diseases as well - this period is also special. According to the 2013 recommendation of International League Epilepsy (ILAE), zonisamide is one of the first-line antiepileptic drugs in focal epilepsy. In my review I discuss women’s epilepsy in the viewpoint of the application of zonisamid. ]

Clinical Neuroscience

Patient characteristics and the effects of intravenous immunoglobulin in patients with Guillain-Barre syndrome

GUZEY ARAS Yesim, TANIK Osman, DOGAN GÜNGEN Belma, KOTAN Dilcan

Purpose - The purpose of this study is to determine the diagnosis- and treatment-related characteristics in Guillain-Barré syndrome (GBS) and to evaluate the effects of early intravenous immunoglobulin (IVIg) treatment on disability, mortality and prognosis. Materials and methods - Adult patients who were diagnosed with GBS in our clinic between January 2000 and January 2014 were retrospectively scanned. While the patients undergoing IVIg treatment were included in the study, the other neuropathic diseases were excluded. Patients were divided into two groups based on the administration time of the IVIg treatment; Group 1 (<7 days) and Group 2 (≥ 7 days) Group 1 consisted of patients undergoing IVIg treatment within 7 days after presentation of symptoms and Group 2 consisted of patients undergoing IVIg treatment on and after 7th day following presentation of symptoms. The scores from Hughes Functional Grading Scale (HFGS) on admission and one month laterwere recorded in all patients in order to evaluate the disability and prognosis in terms of demographic and clinical laboratory characteristics. Results - In this study, 49 GBS patients were included (31 patients in Group 1 and 18 patients in Group 2). Demyelinating form of GBS was determined in 22 (44.8%) patients.). While there was no difference between both groups (p: 0.288, p: 0.762, p: 0.693 respectively) in terms of intensive care and rehabilitation requirement and progression, only 2 patients in Group 1 died. While HFGS mean score on admission in all the patient groups was 3.27±0.974, their HFGS mean score at month 1 was 2.53±1.226. There was no difference between the groups in terms of HFGS mean scores on admission and at month 1. Within each groups, there was a significant improvement between initial (on admission) HFGS scores and HFGS scores acquired at month 1. Conclusion - In this study, demyelinating form was more frequent than axonal form. A total of 2 g/kg dose of IVIg treatment administered for 5 days as a standard in GBS patients ensured a significant improvement on both disability and early and late administration and early administration of the treatment does not lead to any difference in intensive care unit and rehabilitation requirements.

Clinical Neuroscience

How to minimize the risk for headache? A lumbar puncture practice questionnaire study

JONATAN Salzer, RAJDA Cecilia, SUNDSTRÖM Peter, MATTIAS Vågberg, VÉCSEI László, ANDERS Svenningsson

Background - To lower the risk for post lumbar puncture (LP) headache the American Academy of Neurology (AAN) recommended using small bore atraumatic needles together with stylet reinsertion in a report from 2005. It is unclear whether these recommendations are followed or not. Objectives - To investigate the diagnostic LP preferences with respect to the AAN guidelines among neurologists by use of a short online questionnaire, and to review previously published literature on the subject. Results - A total of 284 respondents who performed diagnostic LPs completed the questionnaire. Almost half (41%) answered that they always use atraumatic needles. The most common reason (73%) for not using atraumatic needles was that these were not available. Less than half of the respondents who performed LPs had knowledge about the AAN guidelines for diagnostic LPs, and 48-76% agreed with the different recommendations therein. Five previously (1998-2015) published studies investigating LP practice among neurologists were identified. The reported frequency of atraumatic needle use (always/routinely) varied between 2 and 16%. Discussion - Atraumatic needle use was more common in this study compared with previous publications. There is still skepticism regarding some of the AAN recommendations, and needle availability appears to be the most important factor preventing atraumatic needle use. To increase the use of atraumatic needles we may perform additional studies investigating their potential benefits, and arrange training sessions for neurologists to increase their awareness and level of comfort with the atraumatic LP technique.

Clinical Neuroscience

Vitreous humor diffusion measurements from diffusionweighted imaging in idiopathic intracranial hypertension

CAGLI Bekir, TUNCEL Alpaslan Sedat, YILMAZ Erdem, TEKATAS Aslan, ERMIS Veli

Background - Idiopathic intracranial hypertension is a disease with uncertain etiology. It is not caused by an intracranial mass lesion or hydrocephalus and is characterized by abnormal elevation of intracranial pressure and normal composition of the cerebrospinal fluid. The orbita and intracranial area are closely related anatomically. Elevated intracranial pressure can be transmitted to the orbita through the cerebrospinal fluid around the optic nerve sheath changes at the vitreous humor on diffusion-weighted imaging have not been systemically studied in idiopathic intracranial hypertension. Purpose - The purpose of this study was to investigate diffusion changes in the vitreous humor in patients with intracranial hypertension. Methods - In this retrospective study, 25 patients with papilledema and who had been definitively diagnosed with idiopathic intracranial hypertension and 20 control participants were evaluated. Control subjects and patients were scanned with a 1.5 Tesla magnetic resonance imaging. Apparent diffusion coefficient maps were obtained from diffusion-weighted imaging with a b value of 1000 s/mm2 and apparent diffusion coefficient values were automatically calculated. These images were obtained by a radiologist who was blinded to the details of the study for center of each vitreous humor and the body of lateral ventricle. The mean apparent diffusion coefficient values of each vitreous humor and the body of the lateral ventricle were calculated for each group (control group and patients) and quantitative comparisons were performed. Results - There were no statistically significant differences in mean apparent diffusion coefficient values of the right vitreous humor, left vitreous humor and the body of the lateral ventricle between the patients with idiopathic intracranial hypertension and the control group (p=0.766, p=0.864, p=0.576, respectively). Discussion - Vitreous humor is a closed system and has no direct relationship with the cerebrospinal fluid or cerebral tissue and although morphological changes occur in the orbital structures, including the optic disk and optic nerve in idiopathic intracranial hypertension, the indirect effects of these changes on the vitreous humor may be too subtle to measure. Conclusion - We did not find a significant difference in the mean apparent diffusion coefficient value of the vitreous humor between the patients with idiopathic intracranial hypertension and the control group. However, future studies will be necessary to determine if changes in the vitreous humor can be used to diagnose intracranial hypertension.

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Clinical Neuroscience

Retinal morphological changes during the two years of follow-up in Parkinson’s disease

ATUM Mahmut, DEMIRYÜREK Enes Bekir

The study aims to investigate the relationship between the progression of idiopathic Parkinson’s disease (IPD) and retinal morphology. The study was carried out with 23 patients diagnosed with early-stage IPD (phases 1 and 2 of the Hoehn and Yahr scale) and 30 age-matched healthy controls. All patients were followed up at least two years, with 6-month intervals (initial, 6th month, 12th month, 18th month, and 24th month), and detailed neurological and ophthalmic examinations were performed at each follow-up. Unified Parkinson’s Disease Rating Scale part III (UPDRS Part III) scores, Hoehn and Yahr (H&Y) scores, best-corrected visual acuity (BCVA), intraocular pressure (IOP) measurement, central macular thickness (CMT) and retinal nerve fiber layer (RNFL) thickness were analyzed at each visit. The average age of the IPD and control groups was 43.96 ± 4.88 years, 44.53 ± 0.83 years, respectively. The mean duration of the disease in the IPD group was 7.48 ± 5.10 months at the start of the study (range 0-16). There was no statistically significant difference in BCVA and IOP values between the two groups during the two-year follow-up period (p> 0.05, p> 0.05, respectively). Average and superior quadrant RNFL thicknesses were statistically different between the two groups at 24 months and there was no significant difference between other visits (p=0.025, p=0.034, p> 0.05, respectively). There was no statistically significant difference in CMT between the two groups during the follow-up period (p> 0.05). Average and superior quadrant RNFL thicknesses were significantly thinning with the progression of IPD.

Clinical Neuroscience

[The treatment of advanced Parkinson’s disease]

KLIVÉNYI Péter, VÉCSEI László

[The treatment of Parkinson’s disease depends on the symptoms of the patients and obviously the stage of the disease. Several different approaches can be found in the literature. Based on the published data, in this review we try to summarize the different approaches to the disease stages and theirs’ clinical relevance. Actually, one of the most important issue is the recognition of advanced stage and therefore we reviewed the device-aided therapies. ]

Clinical Neuroscience

[Earlier and more efficiently: the role of deep brain stimulation for parkinson’s disease preserving the working capabilities]

DELI Gabriella, BALÁS István, KOMOLY Sámuel, DÓCZI Tamás, JANSZKY József, ASCHERMANN Zsuzsanna, NAGY Ferenc, BOSNYÁK Edit, KOVÁCS Norbert

[Background – The recently published “EarlyStim” study demonstrated that deep brain stimulation (DBS) for the treatment of Parkinson’s disease (PD) with early fluctuations is superior to the optimal pharmacological treatment in improving the quality of life and motor symptoms, and preserving sociocultural position. Our retrospective investigation aimed to evaluate if DBS therapy was able to preserve the working capabilities of our patients. Methods – We reviewed the data of 39 young (<60 years-old) PD patients who underwent subthalamic DBS implantation at University of Pécs and had at least two years follow-up. Patients were categorized into two groups based on their working capabilities: Patients with active job (“Job+” group, n=15) and retired patients (without active job, “Job-” group, n=24). Severity of motor symptoms (UPDRS part 3), quality of life (EQ-5D) and presence of active job were evaluated one and two years after the operation. Results – As far as the severity of motor symptoms were concerned, similar (approximately 50%) improvement was achieved in both groups. However, the postoperative quality of life was significantly better in the Job+ group. Majority (12/15, 80%) of Job+ group members were able to preserve their job two years after the operation. However, only a minimal portion (1/24, 4.2%) of the Job- group members was able to return to the world of active employees (p<0.01, McNemar test). Conclusion – Although our retrospective study has several limitations, our results fit well with the conclusions of “EarlyStim” study. Both of them suggest that with optimal timing of DBS implantation we may preserve the working capabilities of our patients.]

Clinical Neuroscience

[Dopamine agonists in Parkinson’s disease therapy - 15 years of experience of the Neurological Clinics from Tîrgu Mureș. A cross-sectional study ]

SZÁSZ József Attila, CONSTANTIN Viorelia, MIHÁLY István, BIRÓ István, PÉTER Csongor, ORBÁN-KIS Károly, SZATMÁRI Szabolcs

[Background and purpose - There is relatively few data regarding the usage of dopaminagonists for the treatment of Parkinson’s disease; furthermore, there are no publications regarding Central- and Eastern-European countries. The aim of the study was to evaluate the use of dopamine agonists as a therapeutic option amongst Parkinson’s disease patients admitted to the Neurological Clinics of Tîrgu Mures during the last 15 years. Methods - In our study we investigated the data of all Parkinson’s patients treated at our clinics between the 1st of January 2003 and the 31st of December 2017. We analyzed the particularities of dopamine agonists’ usage based on the therapeutic recommendations from the final report of these patients. Regarding time since the diagnosis, we divided the patients in two groups: less than or equal to 5 years and more than 5 years. Results - During the studied period a total of 2379 patients with Parkinson’s disease were treated at the Clinics. From the 1237 patients with disease duration under 5 years 665 received dopamine agonists: 120 as monotherapy, 83 together with monoamine oxidase inhibitors and in 234 cases associated with levodopa. The remaining 228 patients were treated with a triple combination of levodopa, dopamine agonists and monoamine oxidase inhibitors. In patients suffering from Parkinson’s disease for more than 5 years, in 364 cases out of 653 a dopamine agonist was part of the therapy. Conclusion - The usage of dopamine agonists was similar to the data presented in other studies. We consider that clinicians treating the disease should, with the necessary prudence, use the available and recommended dopamine agonist with the utmost courage to their maximum therapeutic potential.]

Clinical Neuroscience

Vestibular evoked myogenic potential responses in Parkinson’s disease

CICEKLI Esen, TITIZ Pinar Ayse, TITIZ Ali, OZTEKIN Nese, MUJDECI Banu

Background - Our objectives were to determine the differences in the vestibular evoked myogenic potential (VEMP) responses in patients diagnosed with early staged idiopathic Parkinson’s disease (PD) compared to the normal population and evaluate the vestibular system disorder causing balance-posture disorders. Second aim of this study was to investigate caloric test responses particularly in early staged PD compared to normal popu­lation. Material and methods - Thirty patients (14 females and 16 males; mean age, 60.6 ± 13.1 years) diagnosed with idiopathic PD and 28 healthy subjects (20 males and 8 females; mean age, 59.1 ± 6.4 years) were included. The patient and control groups were subdivided according to their age, gender and the patient group was subdivided according to onset time of the Parkinson symptoms, Hoehn-Yahr staging. The subgroups were compared for VEMP and caloric test responses. Results - There were no significant differences between the study and control groups for right and left VEMP measurements. Patients over 60 years and under 60 years did not show significant differences in terms of right and left mean VEMP measurements. However, P1 amplitude was significantly lower in patients over 60 years old (P = .004). Gender, disease duration, BERG balance scale and Hoehn-Yahr stage had no effect on the VEMP amplitudes. There was no significant correlation with the side of Parkinsonian symptoms to the side of canal paresis (P = .566) and the side on which no VEMP response was obtained in caloric test. Conclusion - VEMP responses were not different between PD and healthy subjects. VEMP P1 amplitude was decreased with age in PD group. Canal paresis and symptoms side were not statistically correlated in caloric test.