Lege Artis Medicinae

[The key to real change: management with IT]

BALOGH Nándor

AUGUST 28, 1991

Lege Artis Medicinae - 1991;1(14)

[I regretted the new electoral system. Forgive me for not running for office - I don't think we've got the point this time either. What I miss in the somewhat over-politicised (albeit democratic in appearance) system is a set of criteria and examination system that meets international standards. What are the main tasks of a director, what knowledge, qualifications and qualities does he or she need to have to perform them; how and by whom is the performance of his or her work measured? Of course, these last questions will be answered more precisely by the expected reform of the health sector, when it will become clear what external standards a hospital must meet.]

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Lege Artis Medicinae

[Laparoscopic surgery]

ANTAL András, BÁTFAI László, EZER Péter

[In the recent years abdominal surgery has developed quickly. Laparoscopic operating procedures have spread worldwide. These techniques have reached Hungary as well, though there are only few articles in this topic. Since last December - date of the first laparoscopic cholecystectomy – more than 200 operations have been done, among them the first appendectomy. These procedures are less troublesome for the patients with better cosmetic results, and the shorter period of hospitalisation and unability for work make economical advantages. First, the technical instruments and their usage, then personal coditions and the preparation programme are described. In the second part the usage of the new technique is summarized in cholecystectomy as well as in appendectomy. ]

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[Report of the American Society of Gastrointestinal Endoscopic Surgeons Postgraduate Course and Scientific Meeting]

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[This year's congress of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES) was held in Monterey, California. As a fellow of the Department of Gastroenterology at the University of Southern California, I was able to attend the congress with the support of Dr. Berci, Professor of Surgery at Cedars-Sinai Hospital.]

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[Quo vadis chirurgia biliaris?]

SÁNDOR József, IHÁSZ Mihály

[Mankind has suffered from the agony of gallstones for thousands of years. Until the second half of the last century, there was practically no cure, the only relief being spontaneous internal and external fistulas in the midst of great pain.]

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[Renal cell carcinoma in a horseshoe kidney treated with radical nephrectomy]

SZENTGYÖRGYI Ervin, KONDÁS József, KONDÉR Gyula

[A horseshoe kidney is diagnosed usually after the onset of its complication or the symptoms caused by an arising tumor from it. A tumour was diagnosed in the right half of the horseshoe kidney in a 68 year old female patient by excretory urography, ultrasound examination and renovasography. The tumour was removed by radical nephrectomy. The kidney was exposed through a horizontal abdominal approach. Special attention was given to the separate renal arteries supplying the right half of the horseshoe kidney and to the resection of the isthmus and also regional lymphadenectomy. In the diagnosis of a horseshoe kidney excretion urography had exclusively been used earlier but nowadays ultrasound is playing an increasingly important role. Reno vasography is usually needed only before resection or nephrectomy. The appropriate treatment of a horseshoe kidney tumour - in case of a well functioning contralateral kidney - is radical ablastic tumour nephrectomy including regional lymphadenectomy. ]

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[Recommended principles and strategies for pre-surgical evaluation and surgical resolution of epilepsy]

HALÁSZ Péter

[I. General principles before surgical treatment of epilepsy; II. The surgical investigation process; III. Indications for surgery]

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[Thiazide- or thiazide-like diuretics should be used in the treatment of patients with hypertension? Particularities of the situation in Hungary]

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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.

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