Hypertension and nephrology

[Metformin as an Antihypertensive?]

SIMONYI Gábor

APRIL 08, 2017

Hypertension and nephrology - 2017;21(02)

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Hypertension and nephrology

[Elderly patients with end-stage renal disease, its epidemiology and questions regarding it in Hungary]

SZEGEDI János, KISS István

[The number of elderly people and the kidney disease’s importance connected to it has increased worldwide, therefore the chronic kidney disease became an endemic. Parallel to the dwindling of population the people in it age. Because of the men’s higher mortality rate the proportion of women in the elderly is greater. Prognosis indicates that by 2060 every third citizen will be aged 65 or more. Between 1990 and 2015 the life expectancy at birth increased by 6.95 years in the case of men (in 1990 it was 61.13, and in 2015 it was 72.08) and by 4.9 years in the case of women (in 1990 it was 73.7, and in 2015 it was 78.6) in Hungary. Chronic kidney disease concerns 10 to 14 % of the population and 1% of all of them suffers from end stage kidney failure. In the end of 2015 3.52 million patients received kidney replacement therapy around the globe (2.42 million received hemodialysis, 329000 received peritoneal dialysis and 704 000 lived with transplanted kidneys). Of all the risk factors of chronic kidney disease age, hypertension, diabetes mellitus and obesity stand out as the most important ones. The kidneys’ anatomy and function change in elderly age, making it possible for the kidney disease to manifest in greater numbers. The elderly dialysis patients’ number increases worldwide which is connected to their higher life expectancy and better life prospects which on the other hand ultimately means that more and more patient lives to suffer from kidney disease. It cannot be disregarded either that the increasing number of elderly patients suffering from hypertension or diabetes means that because these are causes of kidney disease, the latter’s numbers are also increasing. International data indicates that in the case of incident ESRD patients their number was between 68-2784 and the older than 75 years was 142-1660 per million population. In Hungary there was 778/pmp and 677/pmp, respectively. In 2015 the ratio of incident dialysis patients the ones aged above 65 was 58,9% in the case of incident patients and 50,3% in the case of prevalent patients. The ratio of the ones aged above 75 was 28,2% in the case of incident patients and 22,6% in the case of prevalent patients. The number of elderly dialysis patients differs by region too. Dialysis treatment started in elderly age requires special knowledge and teamwork, similarly to the question of refusing the treatment. The latter team work, adequate experts (doctors and nurses) and the related professions’ representatives build the foundations of a proper clinical practice.]

Hypertension and nephrology

[Letter to our Readers]

KÉKES Ede, KISS István

Hypertension and nephrology

[First experiences with percutaneous renal denervation in management of resistant hypertension]

SCHULCZ Domonkos, NAGY Ferenc Tamás, THURY Attila, BAJCSI Dóra, FEJES Imola, LETOHA Annamária, CONSTANTINOU Kypros, UNGI Imre, ÁBRAHÁM György, LÉGRÁDY Péter

[Percutaneous transluminal radiofrequency renal denervation is a promising new therapeutic method for the treatment of primary resistant hypertension. The intervention decreases the systemic sympathetic over activation and thus arterial blood pressure. In the 1st Department of Medicine of the University of Szeged, 9 resistant hypertensive patients (2 male, 7 female; mean age: 55.0±4.0 years) had all the conditions were required for renal denervation at the time of interventions were performed. We measured the blood pressure together with the heart rate of the patients on the day preceding the intervention, right after the intervention, at discharge from hospital, then at months 6, 9 and 15. The mean blood pressure was 178/107±7/5 mmHg before the intervention. After denervation mean blood pressure decreased right after the intervention, at discharge from hospital, as well as at months 6, 9 and 15, respectively -15/-17 mmHg; -36/-16 mmHg; -19/-9 mmHg; -27/-21 mmHg and -15/- 16 mmHg. Besides decreasing of blood pressure, the antihypertensive drug therapy also decreased, however, it was not the primary aim of the intervention. No denervation- related intra- or perivascular complications were detected. The findings of our study proved the efficacy and safety of renal denervation in the treatment of primary resistant hypertension, of course with an appropriate patient selection. Our study was not relevant to determine whether this method is accompanied with a significant decrease of cardiovascular morbidity and mortality. Answers may come only based on randomized sham controlled studies with great case numbers.]

Hypertension and nephrology

[Efficacy of a fixed-dose association of amlodipine and lisinopril in grade II and III hypertensive patients]

JOÃO Maldonado, TEIMO Pereira, MARGARIDA Carvalho

[We conducted an observational study, with ambulatory blood pressure monitoring (ABPM), to evaluate the efficacy of a fixed-dose combination of Amlodipine (5 mg) and Lisinopril (20 mg) in grade II and III hypertensive patients, over an 8 week intervention period. Thirty non-medicated hypertensive patients were enrolled, 36% female, with a mean age of 52.44±11.54 years, a body mass index of 28.73±4.54 kg/m2, and brachial office systolic (SBP) and diastolic (DBP) blood pressure of 174.43±15.06 mmHg and 102.83±10.67 mmHg, respectively. All patients performed a 24 hours ABPM at baseline and after a treatment period of 8 weeks with the fixed-dose association. Brachial office blood pressure and routine blood and urine samples were also obtained in both moments. A significant reduction in blood pressure was observed after the treatment with the fixed-dose association. The proportion of patients with controlled ambulatory blood pressure after the treatment was 69%, considering the normalization of the systolic and diastolic ambulatory pressures over the daytime, nighttime and 24 hours. Considering the brachial office blood pressures, the proportion of controlled hypertensive patients reached 79%. A significant improvement was also seen in microalbuminuria (reduction of 37.40 mg/24h; IC: 2.82-71.97; p=0.035) and fasting glycaemia (reduction of 11.53 mg/dl; IC: 3.46-19.61; p=0.007). No side effects were reported during the 8 week treatment period. The treatment of grade II and III hypertensive patients with a fixed-dose association of Amlodipine (5 mg) and Lisinopril (20 mg) during 8 weeks is effective controlling blood pressure. Furthermore, evidences indicate that the efficacy of the association is achieved quickly, safely and with good tolerability.]

Hypertension and nephrology

[How can we improve the chronic renal patient care?]

KULCSÁR Imre

[The author summarizes on the base of forty year’s experience in the field of Hungarian nephrological care, that which are the main developmental problems and possibilities in the clinical nephrology and in dialysis therapy in Hungary recently. There is a clear claim to change in the training of nephrological nurses and nephrologists, and it is very important the organized education of predialysis patients, improving capacity of outpatient nephrological care in his opinion. He recommends organizing the total nephrological care in every county (except nephropathology and renal transplantation) and changing the relevant health law. He emphasizes the importance of conservative care in chronic kidney diseases and home renal replacement therapies. Highly educated nurses must play much more important role in care of dialyzed patients (with more competencies). It is very important planned start in dialysis, and instead of uniform regimes, the therapy provided individually. He suggests measuring of the health-related quality of life regularly and the survival of patients on renal replacement therapy, also. It would be important to determine the residual renal function in dialysis program, monthly. He is considering the phenomenon of “recovery of renal function” and the problem of withdrawal of dialysis.]

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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.

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

[Benefits of SGLT-2 inhibitors: beyond glycemic control]

BALOGH Zoltán, SIRA Lívia

[In the recent years, according to international and Hungarian guidelines, in addition to lifestyle modification, metformin is the preferred initial glucose-lowering drug for most people with type 2 diabetes, if not contraindicated. Sodium glucose co­transporter-2 inhibitors have been shown to reduce progression of chronic kidney disease, or kidney failure, as well as the risk of hospitalizations for congestive heart failure and (mainly in secondary prevention) cardiovascular death in patients with type 2 diabetes. For major adverse cardiovascular events and for the renoprotection, there seems to be no class effect. On the other hand, a class effect of sodium glucose co­transporter-2 inhibitors is evident for hospitalization for heart failure. In this review the authors summarize novel data about sodium glucose cotransporter-2 inhibitors, and about their new perspectives in the near future.]

Hypertension and nephrology

[Monitoring of the blood pressure lowering effectiveness of ramipril-amlodipine fix combination – a non-interventional trial (RAMONA study)]

TOMCSÁNYI János

[Purpose: Monitoring the effectiveness and safety of the fix combination formulation Egiramlon® therapy containing ramipril and amlodipin in patients, suffering from mild or moderate hypertension despite antihypertensive treatment. Patients and methods: Open, prospective, phase IV clinical observational study, which involved 9169 patients (age >18) with mild or moderate hypertension [TUKEB No: 16927- 1/2012/EKU (294/PI/12.)]. Ramipril/Amlodipin 5/5, 5/10, 10/5, 10/10 mg combinations were administered/ titrated in three visits, during the four months period according to the physician’s decision Blood pressure was measured by validated blood pressure sphygmomanometry and ABPM (Meditech, Hungary). The dosis of the fix combination formulation was determined individually during the visits by the 923 doctors involved in the study. The target blood pressure value was 140/90 mmHg, but in case of high risk patients population (diagnosed cardiovascular disease, diabetes), 130/90 mmHg target value was determined. Results: In 70.1% of the patients had no protocoll deviation. Patients data and examination results were processed according to this 6423 patient population. The average age of the patients were 60.2 year, in 50-50% sex distribution. The average duration of the treated hypertension was 9.8 years and the average blood pressure value was 157/91 mmHg. Till the end of the study, systolic blood pressure has decreased with 26.4 mmHg and diastolic pressure with 11.8 mmHg. An average 5.5 bpm heart rate frequency decreasing was observed at the end of the study. As a result of the treatment 52.4% of the patient population has reached the target blood pressure value.]

Lege Artis Medicinae

[Hypertension, COPD and COVID-19. Focus on antihypertensive therapy]

FARSANG Csaba

[Chronic obstructive pulmonary disease is a very common comorbidity of hypertension and it is often unrecognised by physicians. The factors involved in the pathomechanism of both diseases should be realised when choosing treatment. Among factors, hypoxia, increased tone of sympathetic nervous system and activation of renin-angiotensin-aldosterone system should primarily be considered. Vascular wall damage and endothelial dysfunction has an important role in both conditions. The goals of treatment are elimination of risk factors, optimizing the blood pressure, the consequential prevention of cardio-cerebrovascular, renal and pulmonary damage; finally prolonging the patients’ life and improving their quality of life as well. Both hypertension and COPD significantly worsen the condition of COVID-19 patients since they increase the severity of the disease and the rate of in-patients’ and their mortality. In the treatment of hypertension among COPD and COVID-19 patients there must be emphasized the medication inhibiting of renin-angiotensin-aldosterone system, such as angiotensin-converting en­zyme inhibitors or angiotensin-II AT1 re­cep­tor antagonists. Special attention concerned the beneficial effect of mineralocorticoid receptor antagonist spironolactone. Other antihypertensive drugs (calcium channel blockers, thiazide-like diu­retics, high selectivity β1 receptor antagonists) may supplement the treatment if necessary. Long-acting β2 receptor agonists, muscarinic receptor antagonists and inhalation corticosteroids may be administered in double or triple combination also in hypertension and COPD as well. It is important to note, that statin therapy and also vitamin D3 improve the condition of COVID-19 patients.]

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