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Clinical Neuroscience

NOVEMBER 30, 2020

[Covid-19 associated neurological disorders]

SZÔTS Mónika, PÉTERFI Anna, GERÖLY Júlia, NAGY Ferenc

[The clinical signs of SARS-CoV-2 infection has become more recognisable in recent times. In addition to common symptoms such as fever, cough, dyspnea, pneumonia and ageusia, less common complications can be identified, including many neurological manifestations. In this paper, we discuss three Covid-19 associated neurological disorders (Case 1: Covid-19 encephalitis, Case 2: Covid-19 organic headache, Case 3: SARS-CoV-2-infection and ischaemic stroke). We emphasize in our multiple case study that during the present pandemic, it is especially important for neurologists to be aware of the nervous system complications of the virus infection, thus saving unnecessary examinations and reducing the frequency of patients’ contact with health care personnel. ]

Clinical Oncology

FEBRUARY 28, 2020

[Neoadjuvant and palliative drug therapy for bladder cancer]

MARÁZ Anikó

[The survival of patients with muscle-invasive localized bladder cancer is more favorable if they receive neoadjuvant or adjuvant cisplatin-based chemotherapy before or after cystectomy. Based on the meta-analyses, in case of neoadjuvant cisplatin-based chemotherapy, the 5-year survival benefi t is 5-16%. The outcome is even more favorable in case of patients who respond well to neoadjuvant chemotherapy (pathological complete remission rate 12–50%). More than 3 months delay of cystectomy does not signifi cantly reduce the survival if chemotherapy is performed before the operation. Results of adjuvant phase III studies and meta-analyses are not so unambiguous as neoadjuvant data, but chemotherapy seems to infl uence favorably PD-L1 expression the survival, especially in case of pT3/4 and/or N+ (and high grade or margin positivity) cases. According to the recent publications, outcome data of patients have been effective in case of progression after platinum therapy, in or after second-line and in fi rst-line therapies for cisplatin ineligible, PD-L1 positive patients, respectively. Survival and tumor response data are very promising; in particular stages, they seem to be more effective than the previously administered chemotherapies. Current and ongoing trials are investigating the combinations of new remedies with other immunotherapeutic agents or chemotherapies as well as trying to identify biomarkers in order to further increase effectiveness.]

Clinical Oncology

FEBRUARY 28, 2020

[The treatment of the locally advanced and the metastatic gastric cancer]

SIPŐCZ István

[Although signifi cant progress has been made in the treatment of stomach cancer recently, survival results are still quite modest. The purpose of this overview is to take a look into the history of the treatment of locally advanced and metastatic stomach cancer and to present the current treatment standards. It focuses on recent changes in perioperative treatment, as well as the changing of treatment of metastatic patients. The use of multiple line of palliative chemotherapy and the place of the available targeted treatments in metastatic tumours will be analysed in detail. The increasing use and the future possibilities of immunocheckpoint inhibitors will also be discussed. Molecular subtypes of gastric cancer are also mentioned as possible indicators of the choice of therapy. Finally, it intends to give therapeutic proposals to make recommendations to treat the disease taking into account the opportunities in Hungary.]

Clinical Oncology

DECEMBER 30, 2019

[Sequential therapy of metastatic renal cell carcinoma]

TORDAY László

[The incidence of renal carcinoma is on the rise in developed countries, with the tumor being among the 10 most common malignancies. However, the survival of patients with irresecable renal carcinoma has improved signifi cantly in recent years, mainly due to signifi cant advances in oncology treatment. The use of agents acting on the VEGF and mTOR signaling pathways is widespread and has become a standard clinical practice in fi rst and later line therapy. Recent clinical trials have provided many new drugs with new targets (cMET and AXL, FGFR, PD-1/PD-L1, CTLA-4) and combinations thereof, and have completely redrawn the treatment landscape of metastatic renal carcinoma and signifi cantly improved clinical results. This report reviews data on targeted drug therapy of renal cell carcinoma and discusses the therapeutic position of various drugs and combinations to our knowledge.]

Clinical Neuroscience

NOVEMBER 30, 2020

The applications of transcranial Doppler in ischemic stroke

FINNSDÓTTIR Herdis, SZEGEDI István, OLÁH László, CSIBA László

This overview provides a summary of the applications of transcranial Doppler (TCD) in ischemic stroke. A fast-track neurovascular ultrasound protocol has been developed for detecting occlusion or stenosis. The technique is more reliable in the carotid area than in the posterior circulation. By monitoring the pulsatility index the in­crea­sed intracranial pressure can be diagnosed. TIBI score was developed for grading residual flow. TCD has been shown to accurately predict complete or any recanalization. Regarding recanalization, TCD has a sensitivity of 92%, a specificity of 88%, a positive predictive value of 96%, a negative predictive value of 78% and an overall accuracy of 91%, respectively. Sonothrombolysis seemed to be a promising application but randomized controlled trials have shown that it does not improve clinical outcome. TCD examination can detect microembolic signals (MES) which are associated with an increased risk of stroke. Micro­em­boli were detected in symptomatic and asymptomatic carotid artery stenosis and during carotid endarterectomy. The number of microemboli can be decreased by antithrombotic therapy. Contrast en­chan­ced examination and Valsalva maneuver with continuous TCD monitoring can accurately screen for right-to-left shunt.

Clinical Neuroscience

NOVEMBER 30, 2020

[New results of neuroscience research – the background of symptomatological and etiological diversity of mental disorders]

OSVÁTH Péter

[Nowadays, the focus of genetic, neurobiological, neuropsychological and psychosocial research is on a more accurate discovery of the etiology of mental illnesses, especially with regard to the role and complex interactions of certain risk factors. It is increasingly challenging to interpret the results of different aspects and methodologies in a coherent theoretical framework, as this can only lead to a more accurate understanding of the complexity and mechanism of the psychiatric disorders. The main aim of this paper to overview recent studies on etiological background of mental disorders and to present the most important aspects of the Research Domain Criteria (RDoC) system. Review of reports from comprehensive studies published in the most important psychiatric journals over the past five years summarizing new findings on the etio­logy of mental disorders. Although current classifications indicate that mental disorders are strictly distinct diagnostic categories, new findings suggest that these marked differences in symptomatic, genetic, and neurobiological backgrounds are not detectable, as many mental disorders have been identified as having common molecular genetic risk factors, which may indicate common neurobiological pathomechanisms. Research results support the need for a rethinking of psychiatric nosology on an etiological basis and represent an important step forward in the more accurate exploration of the neurobiological background factors of mental disorders and thus in the development of more targeted therapeutic approaches. The development of the RDoC system can be a great help in this, as this dimensional approach offers the possibility of integrating the - often diffuse or even contradictory - neuroscientific research findings into a unified theoretical framework for the etiology, nosology and treatment of mental disorders. ]

Clinical Oncology

AUGUST 30, 2019

[Role of calcium metabolism in malignant diseases]

MÉSZÁROS Szilvia, TAKÁCS István

[Calcium plays a key role in a wide range of biologic functions. It is involved in skeletal mineralization, muscle functions, nerve transmission, and hormonal secretion and modulate various cellular functions too. Lines of research, on possible association of calcium metabolism regulation with tumorigenesis have been extensively studied in the recent decades. Implying disruptions and/or alterations of known regulatory and molecular pathways can lead to severe, sometimes life-threatening complications. The shift in physiological regulation and pathological factors also affect bone metastases and hypercalcaemia in cancer patients. For this reason, it is important to know about the changes in calcium metabolism and its treatment options in cancerous diseases.]

Lege Artis Medicinae

OCTOBER 21, 2020

[Similarities and differences of the most significant international guidelines for the treatment of hypertension]

KÉKES Ede, VÁLYI Péter

[Guidelines of diagnosing and treating hypertension play pre-eminent role in maintaining health in our World. Based on reliable estimates we have to take in ac­count more than 1.6 billion individuals suffering from hypertension by 2025. Ad­he­rence to the guidelines is a vital issue for all high blood pressure patients, however, also the economically developed countries have a disappointing share of well-controlled hypertension. Unfortunately, on the 5 continents of the world, the guidelines provide different or very different recommendations for measuring blood pressure, making diagnosis, estimating cardiovascular risk, and setting a target value, although an attempt has been made in the recent years for developing “consensus” in specific issues. This study presents the different opinions and resolutions by analysing the ACC/AHA, ESC/ESH, NICE, Canadian and Australian guidelines. WHO and ISH resolutions were also concerned. We describe the mutual ad­justment in theoretical and practical terms of the guidelines and the consensus that have already been estab­lished.]

Hypertension and nephrology

SEPTEMBER 30, 2020

[Routes of transmission of SARS-CoV-2 virus infection]

KÉKES Ede

[The modes of transmission of SARS-CoV-2 virus have been analyzed in detail recently. It can be stated that the deposition of micro-sized virus particles on different surfaces and in the air is the main reason for the strength and spread of the epidemic all over the world. Spread of virus is present in practically every event of our lives and daily activities. The usual movements of human-human contact, the specific habits of our own lives (face smoothing, eye rubbing etc.) increase the spread. The greatest threat is posed by infected but asymptomatic individuals as carriers of the virus, and the main concern is the speed of transmission dynamics. We have strong evidence that 1.5-2 meter distance, mask wearing, and eye protection are crucial in reducing the rate of virus transmission. It can be assumed that, like normal influenza virus infections, the appearance of the coronavirus shows a seasonal appearance.]

Hypertension and nephrology

SEPTEMBER 30, 2020

[Post-career development of cardiometabolic changes and hypertension in competitive athletes]

LELBACH Ádám, KÁNTOR Márk, KOLLER Ákos

[Regular physical activity is essential in delaying the aging processes (e.g. arterial remodelling – stiffening, metabolism, bodyweight), the beneficial effects of competitive sports – especially strength sports – according to the recent data of the literature are questionable. The beneficial effects of physical activity on the cardiovascular (CV) system are well known, however less is known regarding the delayed impacts of high intensity competitive sports on the CV system, especially after the sport career is over. This review summarizes the effects of active competitive sport and the post-career period on the cardiometabolic system with special attention to the systemic blood pressure and the development of metabolic syndrome. After sport career, the welldeveloped high performance cardiovascular- and metabolic system suddenly is much less used, but still supported by sport-level diet. It is well known that hypertension is a significant pathogenic factor in the development of cardiovascular diseases, characterized – among others – by reduced elasticity of large- and medium- sized vessels thereby importantly contributing to the development of systolic hypertension. Inflammation and thrombus formation both play an important role in the development of vascular injury and atherosclerosis. The increased tone of microvessels can impair the blood supply of certain organs, including the coronary circulation. It has been ample shown, that regular non-competitive, aerobic exercise activities are important factors in preventing hypertension. Such pathological changes become more evident after the development of post-career obesity, as well as the development of hypertension due to the activation of the renin-angiotensin system through sodium retention and other metabolic changes (increased glucose tolerance, insulin resistance, type II diabetes mellitus). It has been ample shown, that regular non-competitive, dynamic aerobic exercise activities are important factors in preventing hypertension. The frequency, intensity, type, and time (FITT) principle of exercise prescription is the first and common therapeutic approach, which represents the translation of cardiovascular basic science research results into hypertension treatment, thus can provide a personalized physical activity program/therapy according to medical needs not just for the post-career sportspersons, but the wide range of patients.]