Clinical Neuroscience

[LADA type diabetes, celiac diasease, cerebellar ataxia and stiff person syndrome. A rare association of autoimmune disorders]

SOÓS Zsuzsanna, SALAMON Mónika, ERDEI Katalin, KASZÁS Nóra, FOLYOVICH András, SZŰCS Anna, BARCS Gábor, ARÁNYI Zsuzsanna, SKALICZKI József, VADASDI Károly, WINKLER Gábor

MAY 25, 2014

Clinical Neuroscience - 2014;67(05-06)

[Celiac disease - in its typical form - is a chronic immunemediated enteropathy with typical clinical symptoms that develops against gliadin content of cereal grains, and is often associated with other autoimmune diseases. In cases of atypical manifestation classic symptoms may be absent or mild, and extra-intestinal symptoms or associated syndromes dominate clinical picture. The authors present a longitudinal follow-up of such a case. A 63-years old woman was diagnosed with epilepsy at the age of 19, and with progressive limb ataxia at the age of 36, which was initially thought to be caused by cerebellar atrophy, later probably by stiff person syndrome. At the age 59, her diabetes mellitus manifested with type 2 diabetic phenotype, but based on GAD positivity later was reclassified as type 1 diabetes. Only the last check-up discovered the celiac disease, retrospectively explaining the entire disease course and neurological symptoms. By presenting this case, the authors would like to draw attention to the fact that one should think of the possibility of celiac disease when cerebellar ataxia, progressive neurological symptoms and diabetes are present at the same time. An early diagnosis may help to delay the progression of disease and help better treatment.]

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Clinical Neuroscience

[Analysis of patients applying for emergency treatment with vertigo related symptoms]

VARGA Csaba, NAGY Ferenc, DRUBITS Katalin, LELOVICS Zsuzsanna, VARGA Győrfi Krisztina, OLÁH Tibor

[Objective - Analyzing the medical record data of patients with the main symptom of vertigo in “Kaposi Mór” Hospital’s Emergency Department. Method - Retrospective evaluation of patients’s medical history with vertigo related diagnoses according to BNO classification. Results - In the year of 2010, 18 000 patients were presented to ED. In 471 cases the symptoms were vertigo related which makes up 3% of the total. Almost half, 46% of these patients were brought in by ambulance medical car. The ratio of women was twice as high as of the men. One fifth, 19% of patients with vertigo gained admission to the ward and 81% of them were discharged in 24 hours. According to the interviews, 4 types of vertigo have been identified: “whirling style” vertigo in 37% of the cases, dizziness in 33% of the cases, presyncope in 12% and „light headedness” in 9%. The remaining 9% couldn’t be classified. Conclusion - Vertigo is common presenting symptom in emergency department, however it rarely indicates severe condition. The diagnostic value of vertigo classification based on history and brain CT result in identifying the severity of the background condition is questionable. We found that in recognizing the cases which need prompt intervention, thorough neurological examination and the clarification of the vertigo’s circumstances proved to be helpful.]

Clinical Neuroscience

[Efficacy and safety of natalizumab in multiple sclerosis: data from the first five years of TOP (Tysabri Observational Program) study]

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Clinical Neuroscience

[The effect of angiotensin receptor blockers in cerebrovascular disorders and dementia: Bonus in addition to the antihypertensive effect]

KOVÁCS Tibor

[Hypertension and dementia are frequent disorders or rather syndromes. Their incidence is growing with advancing age and hypertension is increasing the risk of cognitive impairment too, while treating hypertension (i.e. the use of antihypertensive medications) is decreasing it. In addition, hypertension is the most important risk factor for stroke. The renin-angiotensin system (RAS) has a special role in the development of hypertension and also involved in the pathogenesis of the most frequent dementia form, namely Alzheimer’s disease. The effect of angiotensin convertase inhibitors and angiotensin receptor blockers (ARB) is based on the inhibition of the RAS, but the ARBs do not inhibit angiotensin formation, just blocking its harmful effects on the AT1 receptor, while allowing the activation of AT2 receptors with pleiotropic effects. Preclinical, epidemiological and clinical therapeutic studies suggest this additional effect of ARBs and these are summarized in this review.]

Clinical Neuroscience

[The Comprehensive Headache-related Quality of life Questionnaire shows significant improvement after withdrawal treatment in medication overuse headache: a pilot study]

GYÜRE Tamás, CSÉPÁNY Éva, HAJNAL Boglárka, KELLERMANN István, BALOGH Eszter, NAGY Zsolt, MANHALTER Nóra, BOZSIK György, ERTSEY Csaba

[Background and purpose - Medication overuse headache (MOH) is a common form of disabling headache presenting in as much as 30% of the patients seen in headache subspecialty practice. Quality of life (QOL) is frequently used as a secondary endpoint in headache trials. In MOH, previous trials of QOL focused mostly on generic QOL. We report the results of a pilot study that examined the feasibility of using a new QOL questionnaire, the 23-item Comprehensive Headache-related Quality of life Questionnaire (CHQQ), as an indicator of treatment response in MOH. Patients and methods - Fifteen patients (13 women and two men; mean age: 39.7±12.5 years) suffering from MOH were enrolled in a complex treatment programme consisting of acute medication withdrawal, preventive pharmacological treatment, structured advice and lifestyle intervention. The clinical data were collected using a detailed headache diary. CHQQ was completed before and after the treatment programme. Results - MOH patients had low QOL values at baseline which was comparable to the QOL of episodic migraine patients. The treatment programme resulted in significant reductions of the number of headache days and attacks, headache severity and analgesic consumption. The dimensions and total score of CHQQ showed a significant increase after the treatment period. Seventeen of CHQQ’s 23 individual items also improved significantly. Conclusion - In this study the new headache-specific quality of life instrument CHQQ was able to demonstrate significant improvements after adequate treatment of MOH. This result indicates that the CHQQ may be an adequate tool for assessing quality of life in headache treatment trials.]

Clinical Neuroscience

[EDITORIAL COMMENT]

SZOK Délia

[Editorial comment 2014;67(05-06)]

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Effects of valproate, carbamazepine and levetiracetam on Tp-e interval, Tp-e/QT and Tp-e/QTc ratio

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Aim - To evaluate P-wave dispersion before and after antiepileptic drug (AED) treatment as well as to investigate the risk of ventricular repolarization using the Tpeak-Tend (Tp-e) interval and Tp-e/QT ratio in patients with epileptic disorder. Methods - A total of 63 patients receiving AED therapy and 35 healthy adults were included. ECG recordings were obtained before and 3 months after anti-epileptic treatment among patients with epilepsy. For both groups, Tp-e and Tp-e/QT ratio were measured using a 12-lead ECG device. Results - Tp-e interval, Tpe/QT and Tp-e/QTc ratios were found to be higher in the patient group than in the control group (p<0.05, for all), while QTmax ratio was significantly lower in the patient group. After 3 months of AED therapy, significant increases in QT max, QTc max, QTcd, Tp-e, Tp-e/QT, and Tp-e/QTc were found among the patients (p<0.05). When the arrhythmic effects of the drugs before and after treatment were compared, especially in the valproic acid group, there were significant increases in Tp-e interval, Tp-e/QT and Tp-e/QTc values after three months of treatment (p<0.05). Carbamazepine and levetiracetam groups were not statistically significant in terms of pre- and post-treatment values. Conclusions - It was concluded that an arrhythmogenic environment may be associated with the disease, and patients who received AED monotherapy may need to be followed up more closely for arrhythmia.

Clinical Neuroscience

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Many systemic problems arise due to the side effects of antiepileptic drugs (AEDs) used in epilepsy patients. Among these adverse effects are low bone mineral density and increased fracture risk due to long-term AED use. Although various studies have supported this association with increased risk in recent years, the length of this process has not been precisely defined and there is no clear consensus on bone density scanning, intervals of screening, and the subject of calcium and vitamin D supplementation. In this study, in accordance with the most current recommendations, our applications and data, including the detection of possible bone mineralization disorders, treatment methods, and recommendations to prevent bone mineralization disorders, were evaluated in epilepsy patients who were followed up at our outpatient clinic. It was aimed to draw attention to the significance of management of bone metabolism carried out with appropriate protocols. Epilepsy patients were followed up at the Antalya Training and Research Hospital Department of Neurology, Epilepsy Outpatient Clinic who were at high risk for osteoporosis (use of valproic acid [VPA] and enzyme-inducing drugs, using any AED for over 5 years, and postmenopausal women) and were evaluated using a screening protocol. According to this protocol, a total of 190 patients suspected of osteoporosis risk were retrospectively evaluated. Four patients were excluded from the study due to secondary osteoporosis. Of the 186 patients who were included in the study, 97 (52.2%) were women and 89 (47.8%) were men. Prevalence of low bone mineral density (BMD) was 42%, in which osteoporosis was detected in 11.8% and osteopenia in 30.6% of the patients. Osteoporosis rate was higher at the young age group (18-45) and this difference was statistically significant (p=0.018). There was no significant difference between male and female sexes according to osteoporosis and osteopenia rates. Patients receiving polytherapy had higher osteoporosis rate and lower BMD compared to patients receiving monotherapy. Comparison of separate drug groups according to osteoporosis rate revealed that osteoporosis rate was highest in patient groups using VPA+ carbamazepine (CBZ) (29.4%) and VPA polytherapy (19.4%). Total of osteopenia and osteoporosis, or low BMD, was highest in VPA polytherapy (VPA+ non-enzyme-inducing AED [NEID]) and CBZ polytherapy (CBZ+NEID) groups, with rates of 58.3% and 55.1%, respectively. In addition, there was no significant difference between drug groups according to bone metabolism markers, vitamin D levels, and osteopenia-osteoporosis rates. Assuming bone health will be affected at an early age in epilepsy patients, providing lifestyle and diet recommendations, avoiding polytherapy including VPA and CBZ when possible, and evaluating bone metabolism at regular intervals are actions that should be applied in routine practice.

Clinical Neuroscience

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[We aim to review the impact of COVID-19 pandemic on epilepsy and epilepsy-care. While the virus has no specific link with epilepsy, it may affect the nervous system both directly and indirectly, leading to seizures in several ways. The hyper-coagulable state occurring with the infection may cause strokes leading to seizures. The infection may first manifest in the form of disturbances of consciousness and behaviour, seizures, and even status epilepticus. The interactions of antiviral/antiepileptic drugs need to be taken into account during treatment. The hypercoagulable state induced by COVID-2 infection may cause stroke, which leads to seizures. The infection can occur also as an impaired consciousness of non-epileptic origin. Interactions of antiviral/antiepileptic drugs have also to be taken into account. The pandemic itself as well as quarantines and social distancing may cause anxiety and insomnia, challenge continuous antiepileptic supply; each one carrying the risk of seizing. Young epilepsy patients with learning disabilities and mental health issues are most vulnerable, justifying their hyper-protection. The danger of infection has highlighted the role of telemedicine. Internet-based video communication may ensure full care for chro­nic patients. Those methods favour bes­­ted patients with higher education. Epilepsy does not increase directly the risk of infection, but its comorbidities may worsen the course of the disease. Brain lesions and hypoxia, stress, insomnia and fever joining the infection increase seizure susceptibility. Because the danger of infection ma­de telemedicine an essential tool of pa­tient care, education and better computer supply for those in need is crucial. ]

Clinical Neuroscience

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

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[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. ]