Hypertension and nephrology

[Salt consumption and hypertension]

KISS István, MARTOS Éva

DECEMBER 22, 2011

Hypertension and nephrology - 2011;15(06)

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Hypertension and nephrology

[The uremic toxin indoxyl sulfate reflects cardio-renal risk and intestinalrenal relationship]

KISS István

Hypertension and nephrology

[Management of hypertensive crises]

JÁRAI Zoltán, ÁCS Tamás, FARSANG Csaba

Hypertension and nephrology

[The importance of white-coat hypertension in adolescents]

LENGYEL Szabolcs, SZÁNTÓ Ildikó, KATONA Éva, PARAGH György, FÜLESDI Béla, PÁLL Dénes

[The importance of adolescent hypertension is that there is tight correlation between blood pressure data in adolescents and in adulthood. In case of sustained adolescent hypertension increase of the left ventricular mass and the intima-media thickness of the carotid artery is also detected. The prevalence of adolescent hypertension is about 1-4%. Among them 1-41% is the frequency of white-coat hypertension. Diagnosis can be set up with repeated measurements at home, or with ambulatory blood pressure monitoring. In the background of adolescent white-coat hypertension the increased sympathetic activity has outstanding importance, which causes endothel dysfunction and increased arterial stiffness. There are growing evidence, that adolescent white coat hypertension is not a harmless condition, because sustained hypertension can develop in the future. In its case risk survey, start of non-pharmacological treatment, and follow-up has major importance.]

Hypertension and nephrology

[Association between sleep disorders and inflammation among kidney transplant recipients]

FORNÁDI Katalin, LINDNER Anett, CZIRA Mária Eszter, SZENTKIRÁLYI András, LÁZÁR S. Alpár, ZOLLER Rezső, TURÁNYI Csilla, VÉBER Orsolya, NOVÁK Márta, MUCSI István, MOLNÁR Miklós Zsolt

[In patients on dialysis, the results of studies examining the association of sleep disorders and inflammation are controversial. We assessed the association between inflammatory markers and different sleep disorders in a large sample of kidney transplant recipients. In the cross-sectional study 100 randomly selected kidney transplanted patients underwent one-night polysomnography [“SLeep disorders Evaluation in Patients after kidney Transplantation (SLEPT) Study”] to diagnose obstructive sleep apnea (OSA) and periodic limb movement is sleep (PLMS). Athens Insomnia Scale (AIS) was used to assess the prevalence of insomnia. Socio-demographic information, data on medication, comorbidity and laboratory parameters were collected. Inflammatory markers such as Creactive protein (CRP), serum albumin, white blood cell count, interleukine-6 (IL-6) and tumor necrosis factor-α (TNF-α) levels were measured. The mean age was 51±13 years (43% female) and the prevalence of diabetes 19%. We found no significant difference in the levels of inflammatory markers between patients with OSA and PLMS versus (vs) patients without such disorders. Apnea-hypopnea index showed a significant association with white blood cell count (rho=0.23), and weak, non significant correlations with the other inflammatory markers (rho<|0.15|). PLM index showed weak, non significant correlations with all markers of inflammation (rho<|0.15|). The serum IL-6 level was significantly higher in patients with insomnia (AIS≥10) than in non-insomniacs [median (IQR): 3.2 (2.6-5.1) vs. 1.7 (1.2- 2.9) ng/l; p=0.009]. The levels of other inflammatory markers were similar between insomniacs and non-insomniacs. We did not find any association between the presence of objectively assessed sleep disorders and inflammatory markers in kidney transplant patients.]

Hypertension and nephrology

[The advantages of a fixed combination of lisinopril with amlodipine in patients with primary hypertension]

GAHRAMANOVA SM, BAKHSHALIYEV AB

[Background: The aim of the study was to examine the effect of amlodipine, lisinopril and a fixed low-dose combination of amlodipine + lisinopril on the performance of the daily profile, blood pressure variability and heart rate variability in patients with PH stage I-II, 1-2 degrees. The diagnosis of PH was made in accordance with the classification of JNC USA in 2003, ESH, ESH 2007 on the basis of careful clinical and instrumental investigations. Methods: The study included 75 PH patients who were divided into three groups depending on the medication received. The first group included 23 patients treated with lisinopril, the second included 27 patients treated with amlodipine, and the third included 25 patients receiving a fixed combination of amlodipine + lisinopril. Drugs were administered once daily with dose titration for lisinopril effective for 10 to 20 mg (mean 15.6±2.2 mg), for amlodipine 5 to 10 mg (mean 7.8±1.1 mg), and Lisonorm administered in a standard fixed dose (lisinopril 10 mg, amlodipine 5 mg), once in the morning. Controlled treatment lasted for 12 weeks. The study used daily blood pressure monitoring and ECG Holter monitoring methods. Results: A comparison of side effects found that combined therapy significantly reduced the number of adverse reactions. For all three groups, treatment resulted in a significant decrease in the average daily, daytime and night-time BP values and in the variability of systolic and diastolic BP. With combined therapy, these changes were more significant. Conclusion: These positive changes appear to be due to the fact that combination therapy can affect several parts of the pathogenetic development of hypertension, compared with the effects of monotherapy, with superior results. In the combination therapy, lisinopril levelled the sympathetic stimulation of amlodipine by blocking the activity of the sympathoadrenal and renin-angiotensin-aldosterone system.]

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Hypertension and nephrology

[Association between cyclothymic affective temperament and hypertension]

NEMCSIK János, BATTA Dóra, KŐRÖSI Beáta, RIHMER Zoltán

[Affective temperaments (cyclothymic, hypertymic, depressive, anxious, irritable) are stable parts of personality and after adolescent only their minor changes are detectable. Their connections with psychopathology is well-described; depressive temperament plays role in major depression, cyclothymic temperament in bipolar II disorder, while hyperthymic temperament in bipolar I disorder. Moreover, scientific data of the last decade suggest, that affective temperaments are also associated with somatic diseases. Cyclothymic temperament is supposed to have the closest connection with hypertension. The prevalence of hypertension is higher parallel with the presence of dominant cyclothymic affective temperament and in this condition the frequency of cardiovascular complications in hypertensive patients was also described to be higher. In chronic hypertensive patients cyclothymic temperament score is positively associated with systolic blood pressure and in women with the earlier development of hypertension. The background of these associations is probably based on the more prevalent presence of common risk factors (smoking, obesity, alcoholism) with more pronounced cyclothymic temperament. The scientific importance of the research of the associations of personality traits including affective temperaments with somatic disorders can help in the identification of higher risk patient subgroups.]

Lege Artis Medicinae

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

VÁLYI Péter

[Diuretics have remained the cornerstone of the antihypertensive treatment since their widespreading in the 1960s. According to the 2018 ESC/ESH Guidelines for the management of arterial hypertension, in the absence of evidence from direct comparator trials and recognizing that many of the approved single-pill combinations are based on hydrochlorothiazide, this drug and thiazide-like indapamide can be considered suitable antihypertensive agents. In the 2018 Hungarian guidelines indapamide is named as the most efficacious diuretic in the treatment of patients with hypertension. The aim of the publication is redefining thiazide- and thiazide-like diuretic use in the treatment of hypertensive patients, with particular attention to presently available hydrochlorothia­zide and indapamide, and their combination drugs in Hungary.]

Lege Artis Medicinae

[Notes on the management of hypertension in chronic kidney disease ]

AMBRUS Csaba

[The prevalence of hypertension among pa­tients with chronic kidney disease is high, reaching more than 80%. Hypertension is both one of the main causes and also the most common consequence of chronic kidney disease. It is also a main factor responsible for the high cardiovascular morbidity and mortality in this patient population. Blood pressure control can improve patient outcomes, lower cardiovascular risk and slow down the progression of kidney dis­ease, irrespective of the underlying cause. The optimal therapy should therefore focus not only on blood pressure reduction but also on renoprotection. Basic understanding of the renal pathophysiology in hypertension and renal effects of various medications is of paramount importance. In this review, we summarized cornerstones of the antihypertensive therapy in patients with chronic kidney disease. The management of patients receiving kidney replacement therapies, such as hemodialysis, peritoneal dialysis or transplanta­tion requires special knowledge and expe­rience, therefore it is not discussed here. The aim of this review was to allow non-nephrologist physicians to take care of their kidney patients with more confidence and effectiveness.]

Hypertension and nephrology

[The importance of assessing subclinical organ damage in risk prediction of hypertensive patients]

GODINA Gabriella, JÁRAI Zoltán

[As the cardiovascular risk influences the quality and intensity of blood pressure lowering therapy, the goal blood pressure values and the frequency of medical control of hypertensive patients, as well as global risk assessment has an important role in the management of hypertension. In the last couple of years many data have been accumulated showing the poor prognostic value of traditional cardiovascular risk factors. This is the reason why recent Hungarian and international guidelines on the management of hypertension advise the screening for subclinical organ damage. Our goal was to summarize the importance of subclinical organ damage by discussing recently published literature on this topic. An overview has been made on the markers of vascular subclinical damage, like carotid atherosclerosis proved with carotid ultrasonography, peripheral arterial disease assessed with ankle-brachial pressure index measurements and vascular rigidity defined with pulse wave velocity measurements. The prognostic values of myocardial hypertrophy assessed with ECG and/or echocardiography and renal damage proved with decreased estimated glomerular filtration rate and proteinuria are also discussed. Summing up what has been said so far, the assessment of subclinical organ damage has a role in cardiovascular risk prediction, however more randomized and prospective studies have to be performed to define the most suitable (i.e. the most reliable and the most cost-effective) markers for this purpose.]

Lege Artis Medicinae

[The effects of angiotensin receptor blockers on the nervous system in hypertension and dementia]

KOVÁCS Tibor

[The renin-angiotensin system (RAS) is one of the most important mechanisms regarding the pathomechanism and treatment of hyprtension. The most of the elements of the RAS are found in the nervous system too. The effect of angiotensin converting enzyme inhibitors and angiotensin receptor blockers (ARBs) is based on the inhibition of the RAS. ARBs might have a special role in the central nervous system because they do not decrease the production of angiotensin but inhibit its harmful effects mediated through the AT1 receptor while allowing the stimulation of AT2 receptors with resulting pleiotrophic actions. Hypertension is the most important risk factor for stroke and has a negative effect on cognitive functions. Antihypertensive treatment has an effect on the nervous system; in addition to the consequences of the reduced blood pressure, ARBs might provide additional advantages in stroke and dementia prevention.]