Clinical Neuroscience Proceedings

Oral Sessions

MAY 13, 2016

Clinical Neuroscience Proceedings - 2016;1(01)

Lectures of the Meeting of the European Society of Neurosonology and Cerebral Hemodynamics, 2016

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[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

[Treatment and new evidences in neuromyelitis optica spectrum disorder ]

ILLÉS Zsolt

[Treatment and new evidences in neuromyelitis optica spectrum disorder Illés Zs, MD, PhD Ideggyogy Sz 2021;74(9–10):309–321. Neuromyelitis optica spectrum disorder (NMOSD) is associated with antibodies against AQP4 in about 80% of the cases. In about one-fourth of seronegative cases, antibodies against the MOG protein are present in the serum (MOG-antibody associated disease, MOGAD). This article discusses off-label azathioprine and mycophenolate mofetil in the treatment of NMOSD and reviews the evidence-based clinical aspects of B/plasma cell depletion, antagonization of IL-6 signaling and blocking the complement pathway. The review also summarizes basic aspects of NMOSD pregnancy focusing on treatment, and the different therapeutic approach in MOGAD. In the recent two years, phase 3 clinical trials provided class I evidence for the efficacy and safety of rituximab (anti-CD20), inebilizumab (anti-CD19), tocilizumab (anti-IL6R), satralizumab (anti-IL6R), and eculizumab (anti-C5) in combination with other immunosuppressants or in monotherapy. The treatment approach in MOGAD is complicated by the monophasic course in about half of the cases and by the potential disappearance of MOG antibody. The necessity of maintenance treatment in MOGAD should be decided after tapered oral steroid. Immunosuppression is recommended in NMOSD during pregnancy and lactation, and this should be considered for optimal selection of treatment in fertile female patients. The new monoclonal antibodies broadened treatment options NMOSD, and the treatment strategy of MOGAD has become more straightforward.]

Clinical Neuroscience

Cyanocobalamin and cholecalciferol synergistically improve functional and histopathological nerve healing in experimental rat model

ALBAY Cem, ADANIR Oktay, AKKALP Kahraman Asli, DOGAN Burcu Vasfiye, GULAEC Akif Mehmet, BEYTEMUR Ozan

Introduction - Peripheral nerve injury (PNI) is a frequent problem among young adults. Hopefully, regeneration can occur in PNI unlike central nervous system. If nerve cut is complete, gold standard treatment is surgery, but incomplete cuts have been tried to be treated by medicines. The aim of the study was to evaluate and compare clinical and histopathological outcomes of independent treatment of each of Vitamin B12 (B12) and Vitamin D3 (D3) and their combination on sciatic nerve injury in an experimental rat model. Materials and methods - Experimental animal study was performed after the approval of BEH Ethics Committee No. 2015/10. 32 rats were grouped into four (n=8) according to treatment procedures, such as Group 1 (controls with no treatment), Group 2 (intraperitoneal 1 mg/kg/day B12), Group 3 (oral 3500 IU/kg/week D3), Group 4 (intraperitoneal 1 mg/kg/day B12+ oral 3500 IU/kg/week D3). Sciatic Functional Index (SFI) and histopathological analysis were performed. Results - SFIs of Group 2, 3, 4 were statistically significantly higher than controls. Group 2 and 3 were statistically not different, however Group 4 was statistically significantly higher than others according to SFI. Axonal degeneration (AD) in all treatment groups were statistically significantly lower than in Group 1. AD in Group 4 was significantly lower than in Group 2 and 3; there was no significant difference between Group 2 and 3. There was no significant difference between Group 1,2 and 3 in Axonolysis (A). But A of Group 4 was significantly very much lower than all others. Oedema- inflammation (OE-I) in all treatment groups were significantly lower than in Group 1; there was no significant difference between Group 2 and group 4. OE-I in Group 2 and 4 were significantly lower than in Group 3. There were no significant differences between Group 1, 2 and 3 in damage level scores; score of Group 4 was significantly lower than of Group 1. Conclusions - B12 and D3 were found effective with no statistically significant difference. But combined use of B12 and D3 improve nerve healing synergistically. We recommend combined use of B12 and D3 after PNI as soon as possible.

Lege Artis Medicinae

[Practical aspects of anticoagulant treatment during the COVID-19 pandemic]

KOMÓCSI András

[Coronavirus infection has a multiple im­pact on the coagulation system and anti­coagulant therapies. Patients admitted with COVID-19 have un­usually high incidence of coagulation ab­normalities. The incidence of atrial fibrillation (AF) seems also to be more frequent among COVID-19 out- and especially in-patients. Among COVID-19 patients receiving oral anticoagulant therapy, for minimizing the risk of bleeding or thromboembolic complications there should also be considered the renal and hepatic functions and drug-drug interactions of oral anticoagulant and COVID-19 therapy. In case of direct anticoagulants, in addition to the benefits of better safety, more favorable treatment ad­he­rence, and fixed dosing, the use of this class of drugs does not require laboratory mo­nitoring of efficacy, which may be of exp­licit benefit in terms of social distancing and health network burdens. This study reviews the possible interactions of drugs used for viral infection and anticoagulation, and in addition to the issues of coagulopathy associated with COVID-19, we discuss also the concerning difficulties of continued anticoagulant therapy related to the social distancing measures.]

Clinical Neuroscience

[Systemic thrombolysis after the administration of idarucizumab in acute ischemic stroke]

PÁSZTOR Máté, BERECZKI Dániel, SZAKÁCS ZOLTÁN, MAY Zsolt

[Introduction - Expanding indications have resulted in an increasing number of patients taking novel oral anticoagulants, posing a major treatment dilemma in acute ischemic stroke. Case presentation - We present a successful intravenous thrombolysis in a dabigatran-treated patient with acute ischemic stroke after the administration of idarucizumab. Discussion - According to current guidelines, systemic thrombolysis is contraindicated under treatment with novel oral anticoagulants (taken within 48 hours). In this scenario, idarucizumab offers a solution by reversing the anticoagulant effect of dabigatran. Conclusion - Although there have only been case reports published so far, the dabigatran-antidote idarucizumab seems to give new therapeutic opportunities in the treatment of acute ischemic stroke.]