Lege Artis Medicinae

[Early Nasojejunal Feeding in Acute Pancreatitis]

OLÁH Attila, PARKAVI Gábor, BÉLÁGYI Tibor, NAGY Attila, ISSEKUTZ Ákos, MOHAMED E. Gamal

OCTOBER 20, 2003

Lege Artis Medicinae - 2003;13(07)

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Lege Artis Medicinae

[THE USE OF EARLY BIOMARKERS IN PREVENTION. - THE MARKERS OF THE EXPOSITION, EARLY EFFECT AND INDIVIDUAL SENSITIVITY]

EMBER István, KISS István, SÁNDOR János, FEHÉR Katalin, NÉMETH Katalin, LUKÁCS Péter

[The molecular and predictive epidemiology plays more and more important role in the prevention of cancer. With the help of early biomarkers, high risk population could be identified for primary preventive intervention modalities. It uses both molecular biological methods and elements of risk assessment plus a testing system based on animal experiments. Its specificity is not high enough to establish the diagnosis but it can be used to monitor the disease and to follow the effectivity of the therapy (e.g. "minimal residual disease") and the preventive interventions. It is also suitable for risk assessment with the markers of individual susceptibility. As to everyday practice there are many problems because of limited therapeutic possibilities, but we hope that the molecular and predictive epidemiology becomes an important part of medicine in the near future.]

Lege Artis Medicinae

[MOTOR VEHICLE ACCIDENT WITH COMPLETE LOSS OF CONSCIOUSNESS DUE TO VASOVAGAL SYNCOPE]

VARGA Emma, WÓRUM Ferenc, SZABÓ Zoltán, VARGA Mihály, BARTA Kitti, LŐRINCZ István

[INTRODUCTION - Vasovagal syncope is one of the most common causes of complete or partial loss of consciousness, thus it might cause harm to the patients themselves or innocent bystanders while driving a car. CASE REPORT - In our case report we introduce the case of a 60-year-old man who was admitted to hospital after a serious motor vehicle accident due to loss of consciousness. We demonstrate the process and results of complete cardiologic and neurological assessment. Our case report illustrates the importance of recognition of patients with a high risk for incapacitating symptoms due to vasodepressor type vaso vagal syncope and the use of head-up tilt-table test to determine the diagnosis and to guide combined management. CONCLUSION - As transient loss of consciousness during driving may cause potentially fatal accident, it has to be taken into consideration during decision making for issue of driving license in patients with vaso vagal syncope.]

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[AGRESSIVE STRATEGIES IN THE TREATMENT OF INFECTIVE ENDOCARDITIS]

LENGYEL Mária

[Without treatment, infective endocarditis (IE) is a fatal disease and in spite of contemporary diagnostic and therapeutic tools its prognosis is still poor. The most important first step is the early rise of clinical suspicion which should be confirmed by the new clinical criteria. Echocardiography is a major criterium: transesophageal echocardiography (TEE) is superior to transthoracic echocardiography (TTE) both in the diagnosis and in the detection of complications of infective endocarditis. Complications can be valvular (embolism, valvular dysfunction) or perivalvular (abscess, pseudoaneurysm formation) with hemodynamic consequences. TEE is recommended as the first line diagnostic technique (mostly in prosthetic valve infective endocarditis) or as a second study following negative TTE or positive TTE with high clinical risk factors or to define embolic risk. In addition to classical surgical indications, early ”preventive” indications are emphasized which can decrease the still high operative mortality. Improvement of outcome in infective endocarditis can only be expected with agressive management meaning early suspicion, early TEE and early operation.]

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Although vertigo is one of the most common complaints, intracranial malignant tumors rarely cause sudden asymmetry between the tone of the vestibular peripheries masquerading as a peripheral-like disorder. Here we report a case of simultaneous temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting as acute unilateral vestibular syndrome, due to the reawakening of a primary gastric signet ring cell carcinoma. Purpose – Our objective was to identify those pathophysiological steps that may explain the complex process of tumor reawakening, dissemination. The possible causes of vestibular asymmetry were also traced. A 56-year-old male patient’s interdisciplinary medical data had been retrospectively analyzed. Original clinical and pathological results have been collected and thoroughly reevaluated, then new histological staining and immunohistochemistry methods have been added to the diagnostic pool. During the autopsy the cerebrum and cerebellum was edematous. The apex of the left petrous bone was infiltrated and destructed by a tumor mass of 2x2 cm in size. Histological reexamination of the original gastric resection specimen slides revealed focal submucosal tumorous infiltration with a vascular invasion. By immunohistochemistry mainly single infiltrating tumor cells were observed with Cytokeratin 7 and Vimentin positivity and partial loss of E-cadherin staining. The subsequent histological examination of necropsy tissue specimens confirmed the disseminated, multi-organ microscopic tumorous invasion. Discussion – It has been recently reported that the expression of Vimentin and the loss of E-cadherin is significantly associated with advanced stage, lymph node metastasis, vascular and neural invasion and undifferentiated type with p<0.05 significance. As our patient was middle aged and had no immune-deficiency, the promoting factor of the reawakening of the primary GC malignant disease after a 9-year-long period of dormancy remained undiscovered. The organ-specific tropism explained by the “seed and soil” theory was unexpected, due to rare occurrence of gastric cancer to metastasize in the meninges given that only a minority of these cells would be capable of crossing the blood brain barrier. Patients with past malignancies and new onset of neurological symptoms should alert the physician to central nervous system involvement, and the appropriate, targeted diagnostic and therapeutic work-up should be established immediately. Targeted staining with specific antibodies is recommended. Recent studies on cell lines indicate that metformin strongly inhibits epithelial-mesenchymal transition of gastric cancer cells. Therefore, further studies need to be performed on cases positive for epithelial-mesenchymal transition.

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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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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.

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