Hypertension and nephrology

[Rapid-progressive glomerulonephritis - a misleading case]

VÁRADY Tímea Eszter1, BRAUNITZER Henrik1, ARÁNYI József1, DOLGOS Szilveszter1

FEBRUARY 24, 2021

Hypertension and nephrology - 2021;25(1)

AFFILIATIONS

  1. Szent Margit Kórház, Nefrológiai Osztály, Budapest

COMMENTS

0 comments

Further articles in this publication

Hypertension and nephrology

[Sudden death – ECG – hypertension]

KÉKES Ede

[Sudden death (HH) is not only associated with coronary heart disease or heart failure, but is also present in hypertension, primarily associated with left ventricular hypertrophy, systolic pressure, and age. Co-morbidities of hypertension (diabetes, coronary heart disease, heart failure and renal failure) contribute greatly to its development. HH occurs due to ventricular fibrillation, or asystole. The auther demonstrates depolarization and repolarization pathologies leading to HH and detectable on the ECG and their characteristic ECG patterns. He also emphasizes the importance of resting heart rate and heart rate variability.]

Hypertension and nephrology

[Prevalence and treatment of hypertension in patients with newly diagnosed familial hypercholesterolemia]

NÁDRÓ Bíborka, DIÓSZEGI Ágnes, KOVÁCS Beáta, PARAGH György, PÁLL Dénes, HARANGI Mariann

[Familial hypercholesterolemia (FH) is an inherited defect of cholesterol metabolism characterized by high plasma total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels and premature cardiovascular disease risk. Prevalence of hypertension in FH is not clarified, but its appearance is independent risk factor for the development of cardiovascular disease. Therefore, optimal treatment has a major priority in this high-risk population. We aimed to investigate the lipid parameters and evaluate the presence of hypertension and its treatment characteristics in 86 newly diagnosed, untreated heterozygous FH patients (27 males, 59 females, mean age 53.6±13.4 years). We diagnosed FH by using the Dutch Lipid Clinic Network criteria. The mean TC level was 8.49±1.7 mmol/l, the mean LDL-C level was 6.11±1.5 mmol/l, the mean high-density lipoprotein cholesterol (HDL-C) level was 1.62±0.5 mmol/l, while the median lipoprotein (a) level was 301 mg/l. We diagnosed 33 FH patients (38.4%) with hypertension. Beta blockers were used in 23, ACE-inhibitors in 13, ARBs in 12, calcium channel blockers in 9, and HCT in 11 cases. 11 patients was treated with monotherapy, for 10 patients double, for 11 patients triple, while for 1 patient quadruple combined antihypertensive therapy was administered. Based on our results, hypertension might be underdiagnosed in this specific patient population. Neither the types nor the combination patterns of blood pressure lowering agents are in line with current guidelines. Up to date screening and treatment of hypertension should be worth considering in this extremely high risk population with enhanced atherosclerosis.]

Hypertension and nephrology

[Risk estimates of advanced chronic kidney disease and predicting mortality in dialyzed patients]

KULCSÁR Imre, KULCSÁR Dalma

[In mostly the second part of the last decade lots of epidemiological study have been released about the progression of the chronic kidney disease (CKD) and theirs connection with the risk of death. The fact that lots of nephrologist from all over the world (from Canada to New-Zealand) are pretty much interested in this topic is absolutely proved by national (REIN Study – French Registry) and international (KDIGO Controversies Conference, DOPPS 1-5, or the European AROII Study) researchers with these epidemiological questions in their focus. The risk estimation facts that are able to show the life expectancy of patients with CKD 3-5 (expected time to dialysis or mortality risk before renal replacement therapy – RRT) and the early or hopefully longer survival odds of the dialyzed ones could be very useful not only for the medical stuff but also for the patients. In case of the predialyzed patients the focus has to be on the Bansal score and also on the Kidney Failure Risk Equation (KFRE) scores (with 4 and 8 variable); on the other hand in dialyzed patients the REIN score that prognose a short-term survival and the Cohen model (both are easy calculated with webcalculators) are in the highlight of importance. There is not a big difference (2- 7%) in validated researches between the prognosed and the real survival dates. Despite of this prediction has to always be evaluated individually in favour of the best decision we can make for the patients and in order to choose the right treatment: conservative therapy, dialysis or transplantation.]

Hypertension and nephrology

[Prevention of polyuria during lithium treatment. Recent research and history]

[Renal toxicity of lithium is a highly important subject which may jeopardize the use of an agent needed by millions suffering from recurrent episodes of bipolar disorder. Lithium induced severe renal damage leading to end stage renal disease can be almost prevented today using lowered plasma lithium levels. But administration of medicines are necessary for the prevention of the lithium induced disturbance in renal concentrating operation and development of nephrogenic diabetes insipidus. Use of thiazides, non-steroid anti-inflammatory compounds (indomethacine) amiloride, high doses of desmopressin and their combinations are our present armamentarium. The present therapy for lithiuminduced nephrogenic diabetes insipidus in man is to counter anti-vasopressin action of lithium. The “future” treatment seems to be (on the basis of recent animal experiments) to enhance the sensitivity of the kidney to vasopressin action by administering pharmacologic blockade of the renal P2Y12 receptor by using clopidrogel or prasugrel.]

Hypertension and nephrology

[Welcome - Dear Reader!]

ALFÖLDI Sándor

All articles in the issue

Related contents

Clinical Neuroscience

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

[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.]

Clinical Neuroscience

[The connection between the socioeconomic status and stroke in Budapest]

VASTAGH Ildikó, SZŐCS Ildikó, OBERFRANK Ferenc, AJTAY András, BERECZKI Dániel

[The well-known gap bet­ween stroke mortality of Eastern and Western Euro­pean countries may reflect the effect of socioeconomic diffe­rences. Such a gap may be present between neighborhoods of different wealth within one city. We set forth to compare age distribution, incidence, case fatality, mortality, and risk factor profile of stroke patients of the poorest (District 8) and wealthiest (District 12) districts of Budapest. We synthesize the results of our former comparative epidemiological investigations focusing on the association of socioeconomic background and features of stroke in two districts of the capital city of Hungary. The “Budapest District 8–12 project” pointed out the younger age of stroke patients of the poorer district, and established that the prevalence of smoking, alcohol-consumption, and untreated hypertension is also higher in District 8. The “Six Years in Two Districts” project involving 4779 patients with a 10-year follow-up revealed higher incidence, case fatality and mortality of stroke in the less wealthy district. The younger patients of the poorer region show higher risk-factor prevalence, die younger and their fatality grows faster during long-term follow-up. The higher prevalence of risk factors and the higher fatality of the younger age groups in the socioeconomically deprived district reflect the higher vulnerability of the population in District 8. The missing link between poverty and stroke outcome seems to be lifestyle risk-factors and lack of adherence to primary preventive efforts. Public health campaigns on stroke prevention should focus on the young generation of socioeconomi­cally deprived neighborhoods. ]

Clinical Neuroscience

Neuroscience highlights: Main cell types underlying memory and spatial navigation

KRABOTH Zoltán, KÁLMÁN Bernadette

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.

Clinical Neuroscience

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

USLU Ilgen Ferda, ELIF Gökçal, GÜRSOY Esra Azize, KOLUKISA Mehmet, YILDIZ Babacan Gulsen

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.