Lege Artis Medicinae

[“There is no Other such Place in the World” – The Life of Objects in the Art Collection of the Hungarian Academy of Sciences]

CZIGLÉNYI Boglárka

NOVEMBER 15, 2019

Lege Artis Medicinae - 2019;29(11)

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Lege Artis Medicinae

[The association between advanced age and peripheral arterial disease]

KOLOSSVÁRY Endre, FARKAS Katalin

[The high-income countries are characterized by the aging of the residents (epidemiological transition) and the change of the disease patterns that are recognized in the population (epidemiological transition). In that sense, considering the cardiovascular diseases in the last few decades, a decline of mortality of acute, fatal conditions (stroke, myocardial infarction) is notable. All these factors contributed to the recognition of the importance of peripheral arterial disease and related problems in the aging popula­tion of the affected people. The high prevalence, the decline of quality of life associated with compromised lower limb circula­tion, the risk of the limb loss, the challenge of rehabilitation and the high mortality represent a significant and increasing burden to the healthcare. The review aims to analyse the relation of the aging population and peripheral arterial disease, addressing the aspects of epidemiology, diagnostics, and therapy. ]

Lege Artis Medicinae

[Present and future challenges in diabetology - MOTESZ presidency]

Lege Artis Medicinae

[The hypertensive, non-diabetic nephropathy]

LÉGRÁDY Péter

[According to the increase of the number of the hypertensive patients the prevalence of hypertensive nephropathy will increase also. According to the data in the Registry of Hungarian Society of Hypertension, in 2015 the proportion of hypertension patients with chronic kidney disease was 12.3% of the males, 39.1% of the females and generally 26.1% of all the hypertensives. In Hungary the hypertensive nephropathy was the 2nd most common condition led to chronic dialysis in 2010 and 2015 (21% and 22%). According to the Hungarian Society of Hypertension 2018 Guideline the classic inhibitors of the renin-angiotensin system can decrease significantly the progression of renal function decline and the proteinuria. ]

Lege Artis Medicinae

[Hypertension in the elderly ]

BARNA István

[Elevated isolated systolic pressure is the most common and greatest cardiovascular risk factor with age. The prevalence of hypertension increases with age and ex­ceeds 60% over 70 years. Proper treatment of hypertension in the elderly, even in very old age (> 80 years), increases life expectancy and reduces the risk of cardiovascular events. For patients over 65 years of age, the target blood pressure range is between 130-139 / 70-80 mmHg if the patient tolerates the treatment. In elderly patients with poorer conditions, systolic blood pressure may be <150 mmHg. White-coat hypertension is common, nondipper ratio is increased, autonomic nervous system dysregulation is more common, and orthostatic decrease of blood pressure. The renal function is decreased or already impaired, often resulting in poorer therapeutic cooperation due to impaired cognitive function. The blood pressure lowering effect of targeted lifestyle changes may be the same as medication monotherapy, with the main disadvantage of decreasing adherence over time, for which a proper physician-patient relationship is essential. First-line agents for the treatment of elderly hypertension include angiotensin converting enzyme inhibitors (ACE inhibitors), angiotensin receptor blockers (ARBs), long-acting calcium channel blockers, and thiazide, thiazide-like diuretics. Beta-blockers should be used in the treatment of elderly hypertension if they have other indications (coronary heart disease, heart failure, arrhythmias). More than 70% of hypertensive patients should use combination therapy to achieve target blood pressure. Take advantage of fixed dose combination to improve compliance to optimize treatment. ]

Lege Artis Medicinae

[Vascular biomarkers ]

BENCZÚR Béla

[While risk scores are invaluable tools for adapted preventive strategies, a significant gap exists between predicted and actual event rates. Additional tools to further refine the risk stratification of patients at an individual level are biomarkers. A surrogate endpoint is a biomarker that is intended as a substitute for and being realized earlier than a clinical hard endpoint. In order to be suitable as a surrogate endpoint of cardiovascular events, a biomarker should meet several well-defined criteria. It has been proposed that a plenty of potential vascular biomarkers would have a role in primary and secondary cardiovascular prevention. Most of the biomarkers examined fit within the concept of early vascular aging. The only biomarkers that fulfill most of the criteria and, therefore, are close to being considered a clinical surrogate endpoint are carotid ultrasonography, ankle-brachial index and carotid-femoral pulse wave velocity. ]

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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.

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[What happens to vertiginous population after emission from the Emergency Department?]

MAIHOUB Stefani, MOLNÁR András, CSIKÓS András, KANIZSAI Péter, TAMÁS László, SZIRMAI Ágnes

[Background – Dizziness is one of the most frequent complaints when a patient is searching for medical care and resolution. This can be a problematic presentation in the emergency department, both from a diagnostic and a management standpoint. Purpose – The aim of our study is to clarify what happens to patients after leaving the emergency department. Methods – 879 patients were examined at the Semmel­weis University Emergency Department with vertigo and dizziness. We sent a questionnaire to these patients and we had 308 completed papers back (110 male, 198 female patients, mean age 61.8 ± 12.31 SD), which we further analyzed. Results – Based on the emergency department diagnosis we had the following results: central vestibular lesion (n = 71), dizziness or giddiness (n = 64) and BPPV (n = 51) were among the most frequent diagnosis. Clarification of the final post-examination diagnosis took several days (28.8%), and weeks (24.2%). It was also noticed that 24.02% of this population never received a proper diagnosis. Among the population only 80 patients (25.8%) got proper diagnosis of their complaints, which was supported by qualitative statistical analysis (Cohen Kappa test) result (κ = 0.560). Discussion – The correlation between our emergency department diagnosis and final diagnosis given to patients is low, a phenomenon that is also observable in other countries. Therefore, patient follow-up is an important issue, including the importance of neurotology and possibly neurological examination. Conclusion – Emergency diagnosis of vertigo is a great challenge, but despite of difficulties the targeted and quick case history and exact examination can evaluate the central or peripheral cause of the balance disorder. Therefore, to prevent declination of the quality of life the importance of further investigation is high.]

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[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.]

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Creutzfeldt-Jakob Disease: A single center experience and systemic analysis of cases in Turkey

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We aimed to analyze the clinical, laboratory and neuroimaging findings in patients with sporadic Creutzfeldt-Jakob disease (CJD) in a single center as well as to review other published cases in Turkey. Between January 1st, 2014 and June 31st, 2017, all CJD cases were evaluated based on clinical findings, differential diagnosis, the previous misdiagnosis, electroencephalography (EEG), cerebrospinal fluid and cranial magnetic resonance imaging (MRI) findings in our center. All published cases in Turkey between 2005-2018 were also reviewed. In a total of 13 patients, progressive cognitive decline was the most common presenting symptom. Two patients had a diagnosis of Heidenhain variant, 1 patient had a diagnosis of Oppenheimer-Brownell variant. Seven patients (53.3%) had been misdiagnosed with depression, vascular dementia, normal pressure hydrocephalus or encephalitis. Eleven patients (87%) had typical MRI findings but only 5 of these were present at baseline. Asymmetrical high signal abnormalities on MRI were observed in 4 patients. Five patients (45.4%) had periodic spike wave complexes on EEG, all appeared during the follow-up. There were 74 published cases in Turkey bet­ween 2005 and 2018, with various clinical presentations. CJD has a variety of clinical features in our patient series as well as in cases reported in Turkey. Although progressive cognitive decline is the most common presenting symptom, unusual manifestations in early stages of the disease might cause misdiagnosis. Variant forms should be kept in mind in patients with isolated visual or cerebellar symptoms. MRI and EEG should be repeated during follow-up period if the clinical suspicion still exists.

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Neuroscience highlights: Main cell types underlying memory and spatial navigation

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Interest in the hippocampal formation and its role in navigation and memory arose in the second part of the 20th century, at least in part due to the curious case of Henry G. Molaison, who underwent brain surgery for intractable epilepsy. The temporal association observed between the removal of his entorhinal cortex along with a significant part of hippocampus and the developing severe memory deficit inspired scientists to focus on these regions. The subsequent discovery of the so-called place cells in the hippocampus launched the description of many other functional cell types and neuronal networks throughout the Papez-circuit that has a key role in memory processes and spatial information coding (speed, head direction, border, grid, object-vector etc). Each of these cell types has its own unique characteristics, and together they form the so-called “Brain GPS”. The aim of this short survey is to highlight for practicing neurologists the types of cells and neuronal networks that represent the anatomical substrates and physiological correlates of pathological entities affecting the limbic system, especially in the temporal lobe. For that purpose, we survey early discoveries along with the most relevant neuroscience observations from the recent literature. By this brief survey, we highlight main cell types in the hippocampal formation, and describe their roles in spatial navigation and memory processes. In recent decades, an array of new and functionally unique neuron types has been recognized in the hippocampal formation, but likely more remain to be discovered. For a better understanding of the heterogeneous presentations of neurological disorders affecting this anatomical region, insights into the constantly evolving neuroscience behind may be helpful. The public health consequences of diseases that affect memory and spatial navigation are high, and grow as the population ages, prompting scientist to focus on further exploring this brain region.