Hypertension and nephrology

[Stroke is a common, severe, but preventable cardiovascular disease in chronic kidney disease]

NAGY Judit, KOVÁCS Tibor, KÉSŐI István, TÓTH Péter, SÁGI Balázs, SZAPÁRY László, VAS Tibor, KOMOLY Sámuel, KOLLER Ákos, WITTMANN István, BERECZKI Dániel, KISS István

MAY 20, 2010

Hypertension and nephrology - 2010;14(02)

[In chronic kidney disease (CKD) patients the high risk for cardiovascular events represents the major cause for morbidity and mortality. Stroke is the third most common manifestation of cardiovascular diseases and cause of death. The risk of cerebrovascular diseases persists in CKD patient in predialysis increases by 1.5-3 times whereas in patients on dialysis is increases by 4-10 times. The combination of classical cardiovascular risk factors and the pathomechanisms present in CKD and activated by dialysis treatment may explain the increased risk. The outcome of stroke is more severe in CKD, than in other populations. There are only a few data regarding early identification, primary and secondary prevention. and proper treatment of stroke in CKD patients with and without dialysis. In this review we summarize the diagnostic and treatment strategies that are based on the existing state of knowledge. However, additional studies are needed to address the poor prognosis through early identification of risk developing potential preventions and treatments of stroke in CKD.]



Further articles in this publication

Hypertension and nephrology

[Cerebrovascular diseases in patients with chronic kidney disease]

KISS István, NAGY Judit

[The reason of the unfavourable life expectancy of patients with chronic kidney disease (CKD) is not only the development of end-stage renal failure but the frequent appearance of cardiovascular diseases (CVD). Chronic kidney damage itself is a cardiovascular risk state and the occurrence of CVD/associated diseases is significantly higher in chronic kidney failure. Beside risk stratification and valid treatment of CVD (hypertension, diabetes mellitus, ischemic heart disease e.g.) we and the international nephrological community have left the cerebrovascular diseases of CKD patients out of consideration. However, up to 50% of patients suffering a stroke will die immediately, only 10% of stroke survivors can continue his/her profession, but the others will be permanently disabled. High blood pressure is a strong predictor of stroke and of other CVD in most of the patients. In stroke risk reduction it is particularly important to reach the target blood pressure values. The main object of the “Live under 140/90 mmHg” programme of the Hungarian Society of Hypertension is to familiarize with target blood pressure itself and how to reach target blood pressure. In 2010, prevention, early diagnosis and management of stroke are the most important challenges of this programme (The Brain Control Programme). We think it is advisable to prepare and publish a clinical practice guideline in collaboration with stroke societies which is similar to the guidelines of international societies and of the Hungarian Society of Stroke but specific for CKD patients. This guideline would help to give a uniform, up-to-date treatment for the cerebrovascular diseases of CKD patients.]

Hypertension and nephrology

[Cardiovascular risk caused by chronic obstructive pulmonary disease in patients with hypertension]

KISS István

[According to World Health Organization data 250 million people suffer from chronic obstructive pulmonary disease (COPD) worldwide, and the diseases accounts for 5% of total mortality. It is the only cause of death with increasing incidence and is estimated to be the third most prevalent one after stroke and myocardial infarction by 2030. In Hungary the estimated number of patients is 500 000 and projected to the number of habitants the highest number of death is caused by COPD in our country in Europe. Hypertension is a public health problem also in Hungary and it is estimated that 2.5-3.5 million adult are affected. Most of them are not aware of their disease or their treatment is insufficient. Hypertension also accounts for a great percentage of cardiovascular morbidity and mortality. Coincidence of the two diseases is significant in the adult population. According to international data the prevalence of COPD among patients with hypertension is similar to that of the general population, thus the coincidence of the two diseases may affect 2.5% of the adult population. Separate guidelines are available for the diagnosis and the treatment of the diseases, however these issues are not discussed jointly neither in international nor in Hungarian guidelines. In this review epidemiology of coincidence, the raising effect of COPD in cardiovascular risk and the potential therapeutic suggestions are summarized.]

Hypertension and nephrology

[News of the Hungarian Society of Hypertension]

Hypertension and nephrology

[Attracted by science III. - My scientific life product of 55 years: what have I achieved?]

RADÓ János

[Author analyses the scientific results of his own clinical research work by evaluating his product in a „traditional way”, and only after then supplemented by scientometric data (citedness). From the 148 articles which has been published in foreign language (mostly in English) in abroad, 10 was grouped into the category of “new procedure/ recognition”, 40 into “original data/significant new statement”, and 98 into “new observation (statement) in a detailed question”. He has found close correlation between the values of the publications grouped by the traditional evaluation and the corresponding numbers of citations. Author discusses in the light of his own data the evaluating role of citedness with the hope to help by this motivated young scholars to plan their own future.]

Hypertension and nephrology

[Practical questions of early diagnosis and prevention of cerebrovascular disease are highly important for all internists]

NAGY Judit, SZAPÁRY László, KOVÁCS Tibor, KÉSŐI István, TÓTH Péter, SÁGI Balázs, VAS Tibor, KOLLER Ákos, WITTMANN István, KISS István, KOMOLY Sámuel

[Stroke is the third most frequent cause of death and the most important cause of disability and dependency worldwide. There are marked differences in the incidence, prevalence and mortality between the populations of Eastern and Western Europe. In Hungary, between 1998-2003, the incidence of stroke was 1,5-2 times higher than in the Western part of the continent. The early recognition of signs and symptoms of TIA and stroke and the urgent transportation of the patient to neurology, preferably to the nearest stroke-center are the key points of successful treatment, reduction of consequences and increased survival. The “time is brain” concept means that the management of TIA/stroke patients should be considered as emergency. This review briefly summarizes the epidemiology, key elements of the etiology, risk factors, up-to-dated diagnosis, primary and secondary prevention and treatment of TIA/stroke to provide information regarding the development of this field targeting the optimal management of TIA/stroke patients.]

All articles in the issue

Related contents

Clinical Neuroscience

Risk factors for ischemic stroke and stroke subtypes in patients with chronic kidney disease

GÜLER Siber, NAKUS Engin, UTKU Ufuk

Background - The aim of this study was to compare ischemic stroke subtypes with the effects of risk factors, the relationship between grades of kidney disease and the severity of stroke subtypes. Methods - The current study was designed retrospectively and performed with data of patients who were hospitalised due to ischemic stroke. We included 198 subjects who were diagnosed with ischemic stroke of Grade 3 and above with chronic kidney disease. Results - In our study were reported advanced age, coronary artery disease, moderate kidney disease as the most frequent risk factors for cardioembolic etiology. Hypertension, hyperlipidemia, smoking and alcohol consumption were the most frequent risk factors for large-artery disease. Female sex and anaemia were the most frequent risk factors for small-vessel disease. Dialysis and severe kidney disease were the most frequent risk factors in unknown etiologies, while male sex, diabetes mellitus, prior stroke and mild kidney disease were the most frequent risk factors for other etiologies. National Institute of Health Stroke Scale (NIHSS) scores were lower for small-vessel disease compared with other etiologies. This relation was statistically significant (p=0.002). Conclusion - In order to improve the prognosis in ischemic stroke with chronic kidney disease, the risk factors have to be recognised and the treatment options must be modified according to those risk factors.

Hypertension and nephrology

[Recommendation for the treatment of hyperlipidemia in chronic renal disease]


[The incidence of chronic kidney disease continuously increases worldwide. Studies suggest that kidney disease is an as powerful cardiovascular risk factor as diabetes mellitus. Because of the high prevalence of lipid disorders, it is likely that dyslipidaemia plays a major role in the high cardiovascular risk of these patients. Evidence supports treating dyslipidaemia in patients with mild or moderate kidney disease, but the results of statin trials in dialysed patients are inconclusive. A practical treatment algorithm is proposed considering the special aspects, the effectiveness and safety of the drugs in the whole spectrum of kidney disease.]

Hypertension and nephrology

[Importance, prevalence and therapy of vitamin D deficiency]

SZABÓ András

[Annual citations in the PubMed database on vitamin D were approximately 5000, this represents a doubling in the last decade and a 20% increase in the last year. There is renewed interest in vitamin D synthesis, metabolism and action. The two principal reasons for increased interest can be: 1. new knowledge regarding the nonhormonal, autocrine, and paracrine actions of 1,25-dihydroxylated vitamin D metabolites in man, 2. the worsening, worldwide trend to vitamin D insufficiency. Clinical vitamin D research in last years has confirmed the presence of a worldwide problem of vitamin D depletion, a problem that appears to be worsening. Largescale population based studies bear out long-held concerns that low serum 25(OH)D levels are associated with a number of adverse outcomes in the human musculoskeletal, innate immune, and cardiovascular systems. In fact, low vitamin D levels are significantly associated with all-cause mortality in the U.S. population and Hungary respectively. It is hypothesized that the global rise in incidence of obesity contributes to the worsening of the problem of vitamin D deficiency, amplifying adverse impacts on the host skeleton, immunoreactivity to microbes, and metabolic status. Finally, it should be remembered that treatment of vitamin D deficiency has two phases: restoration of 25(OH)D levels up to more than 30 ng/ml; and maintenance of the serum 25(OH)D level in that range. The present upper level (UL) of vitamin D intake that is deemed to be safe (2000 IU/day) must be re-evaluated considering data acquired over the past 15 years.]

Hypertension and nephrology

[Non-invasive evaluation of cardiovascular risk in pediatric chronic kidney disease patients]

BÁRCZI Adrienn, DÉGI Arianna Amália, KIS Éva, REUSZ György

[Cardiovascular diseases are the leading cause of mortality and morbidity in children with chronic kidney disease (CKD). Similar to adults, children with CKD experience a high burden of traditional and uremia-associated risk factors. Recent years, several studies were published in connection with cardiovascular risk factors, patomechanism, and early markers of cardiovascular diseases. Early signs of cardiomyopathy, such as left ventricular hypertrophy or dysfunction, and markers of atherosclerosis, such as increased intima-media thickness of the carotid artery or increased wall stiffness of the aorta are frequently present in early stages of CKD in children. As prevention is important in pediatrics, the evaluation of subtle changes of the cardiovascular system provide opportunity for early treatment and that enables children to develop normally and have a better long-term quality of life. Recently, newer non-invasive cardiovascular imaging modalities have been emerged to diagnose subclinical alterations of the heart and vessels in this specific population with kidney disease. In this review, we provide an overwiev of the emerging imaging techniques used to detect early subclinical organ damage in pediatric chronic kidney disease patients.]

Lege Artis Medicinae


VOKÓ Zoltán, SZÉLES György, KARDOS László, NÉMETH Renáta, ÁDÁNY Róza

[INTRODUCTION - Here we present the descriptive epidemiology of stroke in Hungary including mortality, morbidity, functional limitation and inpatient care based on the most recent health statistical data. METHODS - Mortality data were analysed by direct and indirect standardisation, and geographical mapping based on empirical Bayesian smoothing. Morbidity data were obtained from the General Practitioners’ Morbidity Sentinel Station Program and the National Health Surveys. The latter also provided data on functional limitation. Data on inpatient service were taken from the European Hospital Morbidity Database of WHO. RESULTS - Hungarian stroke mortality continued to decrease in recent years, and the slope of the decrease was larger than in Western Europe. Stroke mortality was highest in the Northern- Hungarian Region, and in Somogy and Zala counties. The incidence of stroke was 1.5-2 times higher than in the developed countries in most age groups. Over 64 years of age, a decline of stroke incidence was observed, especially in men. In this age group approximately 10% of men and 7% of women had already had a stroke. Of these patients more than 10% needed assistance to get out of the bed, dress up, or eat. Hospitals reported more than 60 000 stroke cases in 2005. CONCLUSION - Despite the promising trends in stroke mortality and now also in morbidity, both indices are still rather high in Hungary compared to those in Western-Europe. The relatively favourable epidemiological changes, however, may be overridden by the increased stroke burden resulting from the aging of the population.]