Lege Artis Medicinae

[The recently founded]

APRIL 29, 1992

Lege Artis Medicinae - 1992;2(04)

[The Professional College of Health Informatics was recently established, chaired by Dr István Bordás, Director of the Information Centre for Health Care at the Ministry of Public Welfare, and we asked him to present the work of the College. ]

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Lege Artis Medicinae

[Malnutrition syndrome in childhood part I.]

BAKSAI László, PHILIP W. H. Eskes

[Malnutrition is a chrocic nutritional disorder resulting from insufficient intake of caloric energy and/or some the fundamental nutrients. Since it is the most common public health problem in the world it has a great impact on pediatric morbidity and mortality. The etiology is extremely complex. When one considers the less severe symptoms and signs caused by vitamin-, mineral-, and trace element deficiencies, it is apparent that not only children living in underprivileged countries are affected. In the course of making the diagnosis an assessment of the nutritional status should also be made, especially considering the above-mentioned marginal nutritional deficiencies. The most common manifestation of nutritional disorders is anemia, which is mostly caused by lack of iron, vitamin B12, folic acid and can be complicated by infections. Nutritional requirements can be affected by several drugs. That is why this medication-nutrition interaction has to be kept in mind during treatment. The interaction of malnutrition and infection is very important, primarily for three reasons: mechanisms by which infection complicates the metabolic and nutritional status of the host; importance of suboptimal nutritional status on susceptibility and severity of intercurrent infections; clinical and therapeutic implication of these interactions. ]

Lege Artis Medicinae

[The bleeding time]

BODA Zoltán

[The bleeding time is considered to be the best screening test for the detection of disorders of primary haemostasis. Despite a large number of bleeding time tests, the exact pathophysiological background of the prolonged bleeding time is unknown. The significance of the cellular (platelet) von Willebrand protein is emphasized. A sensitive method (Ivy) and standardized devices (Simplate) are suggested. Examination of the bleeding time in cases of von Willebrand disease and congenital or acquired thrombocytopathy is essential. Specific recommendations regarding the rational use of the bleeding time (diagnostic algorythm) are presented. ]

Lege Artis Medicinae

[Clinical importance of pharmacogenetic investigation]

VAS Ádám, RÓNA Kálmán, GACHÁLYI Béla , SZABÓ Ildikó

[This is a brief review on the most important monogenically determined metabolic polymorphisms, their biochemical background and clinical significance. Relevant data from literature are also featured. The authors review data on possible connections between metabolic polymorphism and the risk of certain diseases.]

Lege Artis Medicinae

[Correspondence]

SZOMBATI István, MANNINGER Jenő, KAZÁR György, HARMAT Pál, MÁRTON Éva, KRASZNAI Géza

[Includes the following letters : Little Hungarian point system; ...and the injured?; Abuse of psychosomatics the organic dimension of psychiatry; Psychogenic horsekick; ]

Lege Artis Medicinae

[P300 wave evoked by visual and acustic stimuli in parkinsonian patients with or without dementia]

MOGYORÓS Ilona, SZOMBATHELYI Éva

[Authors analysed the relationship between cognitive function disturbance observed in patients with Parkinson's disease and clinical features of the disease. Relationship between the latency prolongation of the P 300 wave and the duration of substitution therapy, clinical form and severity of the disease (the Hoehn-Yahr stage) was examined. 75 randomly selected young patients with Parkinson's disease were divided in to two groups: one with and the other without dementia as determined by the Wechsler. Hunt and Mini Mental State tests. The latency of the P 300 wave using visual and acoustic stimuli was determinated. Significant prolongation of the latency of P 300 wave evoked both by visual and acoustic target stimuli was found in parkinsonian patients with dementia. Patients with dementia have longer duration of disease and substitution therapy. The akinetic-rigid form of the disease was more frequent in this group as well. A significant part of younger patients are chacarterised not only with motor but with cognitive function disturbance, too. Determination of the latency of P 300 wave helps to select these patients and to choose the adequat therapy. ]

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Late simultaneous carcinomatous meningitis, temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting with mono-symptomatic vertigo – a clinico-pathological case reporT

JARABIN András János, KLIVÉNYI Péter, TISZLAVICZ László, MOLNÁR Anna Fiona, GION Katalin, FÖLDESI Imre, KISS Geza Jozsef, ROVÓ László, BELLA Zsolt

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.

Clinical Neuroscience

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BOCZÁN Judit, KLIVÉNYI Péter, KÁLMÁN Bernadette, SZÉLL Márta, KARCAGI Veronika, ZÁDORI Dénes, MOLNÁR Mária Judit

[Background – Spinal muscular atrophy (SMA) is an autosomal recessive, progressive neuromuscular disorder resulting in a loss of lower motoneurons. Recently, new disease-modifying treatments (two drugs for splicing modification of SMN2 and one for SMN1 gene replacement) have become available. Purpose – The new drugs change the progression of SMA with neonatal and childhood onset. Increasing amount of data are available about the effects of these drugs in adult patients with SMA. In this article, we summarize the available data of new SMA therapies in adult patients. Methods – Members of the Executive Committee of the Hungarian Clinical Neurogenetic Society surveyed the literature for palliative treatments, randomized controlled trials, and retrospective and prospective studies using disease modifying therapies in adult patients with SMA. Patients – We evaluated the outcomes of studies focused on treatments of adult patients mainly with SMA II and III. In this paper, we present our consensus statement in nine points covering palliative care, technical, medical and safety considerations, patient selection, and long-term monitoring of adult patients with SMA. This consensus statement aims to support the most efficient management of adult patients with SMA, and provides information about treatment efficacy and safety to be considered during personalized therapy. It also highlights open questions needed to be answered in future. Using this recommendation in clinical practice can result in optimization of therapy.]

Clinical Neuroscience

The effects of 30 Hz, 50 Hz AND 100 Hz continuous theta burst stimulation via transcranial magnetic stimulation on the electrophysiological parameters in healthy individuals

OZDEMIR Zeynep, ACAR Erkan, SOYSAL Aysun

Transcranial magnetic stimulation is a non-invasive procedure that uses robust magnetic fields to create an electrical current in the cerebral cortex. Dual stimulation consists of administering subthre­shold conditioning stimulation (CS), then suprathreshold test stimulation (TS). When the interstimulus interval (ISI) is 1-6 msec, the motor evoked potential (MEP) decreases in amplitude; this decrease is termed “short interval intracortical inhibition” (SICI); when the ISI is 7-30 msec, an increase in MEP amplitude occurs, termed “short interval intracortical facilitation” (SICF). Continuous theta burst stimulation (cTBS), often applied at a frequency of 50 Hz, has been shown to decrease cortical excitability. The primary objective is to determine which duration of cTBS achieves better inhibition or excitation. The secondary objective is to compare 50 Hz cTBS to 30 Hz and 100 Hz cTBS. The resting motor threshold (rMT), MEP, SICI, and SICF were studied in 30 healthy volunteers. CS and TS were administered at 80%-120% and 70%-140% of rMT at 2 and 3-millisecond (msec) intervals for SICI, and 10- and 12-msec intervals for SICF. Ten individuals in each group received 30, 50, or 100 Hz, followed by administration of rMT, MT-MEP, SICI, SICF immediately and at 30 minutes. Greater inhibition was achieved with 3 msec than 2 msec in SICI, whereas better facilitation occurred at 12 msec than 10 msec in SICF. At 30 Hz, cTBS augmented inhibition and suppressed facilitation, while 50 Hz yielded less inhibition and greater inter-individual variability. At 100 Hz, cTBS provided slight facilitation in MEP amplitudes with less interindividual variability. SICI and SICF did not differ significantly between 50 Hz and 100 Hz cTBS. Our results suggest that performing SICI and SICF for 3 and 12 msec, respectively, and CS and TS at 80%-120% of rMT, demonstrate safer inhibition and facilitation. Recently, TBS has been used in the treatment of various neurological diseases, and we recommend preferentially 30 Hz over 50 Hz cTBS for better inhibition with greater safety and less inter-individual variability.

Lege Artis Medicinae

[Cardiovascular prevention 2021 – Guidelines of European Society of Cardiology 2021. General principles]

VÁLYI Péter, KÉKES Ede

[On 31 August 2021, the European Society of Cardiology published its guideline “Prevention of cardiovascular disease in clinical practice”. This guideline provides a comprehensive review about risk factors of atherosclerotic cardiovascular disease, their assessment, potential modifiers, treatment and prevention of the cardiovascular disease itself at societal and individual levels respectively. The previous guideline issued 2016, had to be updated due to the recent significant advances in risk prediction of cardiovascular disease on atherosclerotic background and due to the beneficial effects of treatment, emerging new drugs and therapeutic targets. The risk assessment system has undergone a major overhaul and now predicts the risk of fatal and non-fatal cardiovascular events together over a 10-year horizon and over a lifetime. In the new guideline, age plays a more important role in risk classification than before. The risk assessment and staged management of apparently healthy people or patients with established atherosclerotic cardiovascular disease, diabetes mellitus and other specific diseases or conditions are detailed. The positive impact of influencing risk factors, the years of life gained can recently be presented in a lifetime perspective, which will help to make an individually tailored decision on the extent of interventions, taking into account also the patient'’s preferences.]

Lege Artis Medicinae

[Lipid lowering therapy during COVID-19 pandemic]

MÁRK László

[The COVID-19 pandemic posed significant challenges to all healthcare systems of the world as created a new situations above the large number of people infected, solutions of which were lacking any previous patterns. Former experiences were specifically needed among physicians who practised usually with therapies supported by evidence based clinical experiences thus they were working along the principles of Evidence-Based Medicine. The new observations and recommendations for treating infected patients increased gradually, however they were not always well-founded by the general urgency. In this situation, physicians faced often problems of the patient’s former medications since they had to focus on the therapy of the prevalent life-threatening condition. In such cases, therapy as lipid lowering, which is inherently inimically and lightly taken, may be omitted even more often. Basic drugs of lipid lowering are statins. They are used to reduce cholesterol levels and the risk of cardiovascular events, but they have also been described as having beneficial effect on the new viral infection. In this effect, the statins beyond the well-known anti-inflammatory impact and increasing the expression of angiotensin-converting enzyme-2 further mechanisms can take part as well. These may include among others the promoted breakdown of lipid rafts, which directly inhibits the entry of coronavirus into the cell through the S protein by decreasing the level of cholesterol required for this proceeding. In a group of more than 1200 statin treated and SARS-COV-2 infected patients the overall mortality rate by the 28th day was 48% lower than among the non-statin-users. According to a meta-analysis of nearly nine thousand COVID-19-infected statin users, they had 30% lower mortality rate or serious complications. Up to date observational studies suggest that statin therapy and the administration of other lipid lowering drugs should be continued or initiated according to the guidelines also during the COVID-19 infection.]