scholarly journals 435 Renal denervation in a patient with uncontrolled arterial hypertension secondary to polycystic kidney disease

2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Maddalena Widmann ◽  
Simone Fezzi ◽  
Gianluca Castaldi ◽  
Domenico Tavella ◽  
Michele Pighi ◽  
...  

Abstract Aims Autosomal dominant polycystic kidney disease (ADPKD) represents the most common inherited cause of chronic kidney disease. Typical manifestations of this condition include secondary hypertension, abdominal pain, haematuria and urinary tract infections. Despite the progressive increase in the use of antihypertensive therapy in patients with ADPKD in the last decades, reaching blood pressure target is often difficult in this setting due to the complex physiopathology of arterial hypertension in ADPKD. Catheter-based renal sympathetic denervation (RDN) represents nowadays a therapeutic strategy to approach resistant hypertension. Based on consistent results of several sham-controlled clinical trials, the evidence of safety and efficacy of this procedure is increasing, also in patients with multiple comorbidities including chronic kidney disease. Patients with ADPKD often develop chronic severe kidney-related pain, caused by distension of the renal capsule due to the expansion of the cysts. RDN was proposed to be an effective therapeutic option able to relieve loin pain. Methods A 49-year-old man affected by ADPKD was referred to our centre for resistant uncontrolled arterial hypertension, despite combined therapy with five antihypertensive drugs. He also complained about intense loin pain and 3 years earlier underwent two surgical interventions to remove voluminous renal cysts, that did not relieve chronic pain. His kidney function was moderately decreased at presentation, with progressive decline in the previous years. After a multi-disciplinary discussion with a nephrologist and algologist, the patient was proposed for RDN with the aim of lowering blood pressure and reducing pain. He was treated in July 2018, and after the procedure, was observed a better control of blood pressure but no benefits on pain. Because of the persistence of intractable loin pain, the patient was submitted to a second RDN in December 2018. Also, after this procedure, blood pressure declined remarkably, decreasing his need for antihypertensive medications without a significant worsening of kidney function. Unfortunately, no benefit on chronic pain was observed. Results ADPKD is characterized by the progressive bilateral development of focal renal cysts. Cardiovascular complications, mainly related to hypertension, are a major cause of morbidity and mortality for these patients. RDN could be a valid and safe therapeutic option for the treatment of secondary hypertension in this setting.

2020 ◽  
Vol 71 (7) ◽  
pp. 425-435
Author(s):  
Teim Baaj ◽  
Ahmed Abu-Awwad ◽  
Mircea Botoca ◽  
Octavian Marius Cretu ◽  
Elena Ardeleanu ◽  
...  

Accelerated atherosclerosis and cardiovascular diseases are frequent complications in hypertensive patients with chronic kidney disease (CKD), being mainly driven by cardiovascular risk factors as lipid disorders and an unfavorable blood pressure profile. The objectives of the study were to evaluate the lipid profile and to assess the characteristics of blood pressure (BP) in patients with primary arterial hypertension associating chronic kidney disease (CKD) in a primary care population in Timis County, Romania. Lipid disorders were highly prevalent in hypertensive patients with CKD, consisting in hyper LDL-cholesterolemia in 50.3%, hypertriglyceridemia in 52%, low HDL-cholesterol levels in 35.8%. More than 2 lipid abnormalities were present in 68.8% of CKD hypertensive. CKD hypertensive patients, compared with those without CKD, presented a BP profile with higher systolic and diastolic office BP. On ambulatory blood pressure monitoring they also registred higher systolic and diastolic BP, the systolic BP (SBP), both for 24 h SBP, day-time and night-time SBP being statistically significant higher than in hypertensive patients without CKD. The circadian 24 h BP profile demonstrated in the CKD hypertensive population an unfavourable nocturnal profile in 67%, consisting of a high prevalence of the non-dipping profile and of nocturnal riser pattern.


2019 ◽  
Vol 12 (6) ◽  
pp. 771-777 ◽  
Author(s):  
Esmeralda Castillo-Rodriguez ◽  
Beatriz Fernandez-Fernandez ◽  
Raquel Alegre-Bellassai ◽  
Mehmet Kanbay ◽  
Alberto Ortiz

Abstract Three major guidelines deal with blood pressure thresholds and targets for antihypertensive drug therapy in chronic kidney disease (CKD) patients: the 2012 Kidney Disease: Improving Global Outcomes Clinical Practice Guideline for the Management of Blood Pressure in Chronic Kidney Disease; the 2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults; and the 2018 ESC/ESH Guidelines for the Management of Arterial Hypertension. However, a careful reading of the three guidelines leaves the practicing physician confused about the definition of CKD, how hypertension and secondary hypertension should be diagnosed in CKD patients and what the blood pressure thresholds, targets and compelling indications of antihypertensive drug therapy should be for this population. Current guidelines refer to different CKD populations and propose different definitions of hypertension, different thresholds to initiate antihypertensive therapy in CKD patients and different BP targets compelling antihypertensive drug use. The different bodies producing guidelines should work together towards a unified definition of CKD, a unified concept of hypertension and unified BP thresholds and targets for hypertensive drug therapy for CKD patients. Otherwise they risk promoting confusion and therapeutic nihilism among physicians and patients.


2019 ◽  
Vol 23 (1) ◽  
pp. 37-44 ◽  
Author(s):  
O. B. Kuzmin ◽  
V. V. Zhezha ◽  
L. N. Landar ◽  
O. A. Salova

Arterial hypertension (AH) resistant to drug therapy is the phenotype of uncontrolled AH, in which patients receiving at least 3 antihypertensive drugs, including a diuretic, maintain blood pressure above the target level. Initially, the term refractory hypertension was also used to refer to resistant hypertension. Recently, however, refractory hypertension has been isolated into a separate phenotype of difficult to treat hypertension, which is defined as insufficient control of target blood pressure, despite the use of at least 5 different mechanisms of antihypertensive drugs, including long-acting diuretic and antagonist of mineralcorticoid receptors. Resistant hypertension is detected in 10–15 % of all hypertensive patients receiving drug therapy, and is often found in patients with chronic kidney disease. Hypertension can be a cause and/or consequence of kidney damage and is typical of most patients with chronic kidney disease. The lack of control of target blood pressure in a significant proportion of hypertensive patients with CKD who receive at least 3 antihypertensive drugs of different mechanisms of action indicates a lack of effectiveness of antihypertensive therapy, which not only accelerates the loss of renal function, but also significantly worsens the prognosis, contributing to such people risk of cardiovascular and renal complications. The review presents data on the prevalence, prognostic value of resistant hypertension in patients with chronic kidney disease, features of its formation and approaches to increasing the effectiveness of antihypertensive therapy in this patient population.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Kazakov ◽  
J Hermann ◽  
V Jankowski ◽  
T Speer ◽  
C Maack ◽  
...  

Abstract Background Cardiac fibrosis and arterial hypertension are common in patients with chronic kidney disease (CKD). We studied the mechanisms of cardiac fibrogenesis and the role of blood pressure in mice with CKD. Methods and results 10-week-old male C57/BL6N (BL6) and SV129 wildtype (WT) mice were underwent 5/6 nephrectomy (remnant kidney model, RKM) or sham operation for 10 weeks. RKM significantly elevated plasma creatinine and urea. RKM elicited both interstitial and replacement renal and left ventricular (LV) (BL6: SHAM 5.6±0.4%, RKM 7.3±0.7%, p=0.04; SV129: SHAM 6.0±0.5%, RKM 14±2%, p=0.001) fibrosis as assessed by picrosirius red staining. In parallel, the number of cardiac fibroblasts per mm2 (BL6: SHAM 36±4, RKM 85±13, p=0.001; SV129: SHAM 82±11, RKM 200±34, p=0.006) was increased in RKM mice. With regard to possible mechanisms, cardiac oxidative stress as shown by co-immunostaining for intracellular fibronectin and 8-hydroxyguanosine (BL6: SHAM 44±14%, RKM 60±24%, p=0.03; SV129: SHAM 51±6%, RKM 70±7%, p=0.04) and the percentage of CXCR4+ fibroblasts in the myocardium (BL6: SHAM 47±5%, RKM 62±4%, p=0.04; SV129: SHAM 63±5%, RKM 81±3%, p=0.005) were increased. Furthermore, the number of circulating CD45+ / collagen I+ fibrocytes (FACS) in the peripheral blood was increased by RKM in BL6 (SHAM 100±23%, RKM 443±252%, p=0.04) and diminished in SV129 (SHAM 100±19%, RKM 43±11%, p=0.01), while an opposite regulation was seen in the bone marrow. To further confirm the role of bone-marrow derived fibroblasts in renal and cardiac remodeling 10-week-old WT BL6 mice were subjected to transplantation of bone marrow from 10-week-old WT BL6 mice expressing green fluorescent protein (GFP)+ ubiquitously. 28 days later, RKM or SHAM-operation was performed. RKM significantly increased the number of GFP+ fibroblasts in kidney and LV-myocardium. CKD significantly decreased myocardial capillarization assessed by immunostaining for podocalyxin in both mouse lines. In parallel, myocardial protein expression of fibrosis regulators fibronectin, collagen I, CTGF and Hif1a were up-regulated and expression of the active form of eNOS (phospho-S1177) was reduced. As a possible confounder, tail-cuff blood pressure was moderately enhanced (Ø 30mmHg) 9 weeks after nephrectomy. In a control experiment using the vasodilator hydralazine (250 mg/L/day), peripheral blood pressure was equalized in all 4 experimental groups, but the extent of LV fibrosis and expression of the above-mentioned fibrosis markers remained unchanged. Conclusions Chronic kidney disease in the RKM model elicits left ventricle fibrosis by increasing myocardial protein expression of fibrosis regulators, reduction of myocardial capillarization and mobilization / recruitment of circulating fibroblasts, independently of blood pressure. Funding Acknowledgement Type of funding source: Foundation. Main funding source(s): Deutsche Forschungsgemeinschaft


2019 ◽  
Vol 100 (4) ◽  
pp. 571-577
Author(s):  
I V Polyakova ◽  
N Yu Borovkova ◽  
A A Tulichev ◽  
T I Maslova ◽  
N Yu Linyova ◽  
...  

Aim. To study the daily indices of central and peripheral blood pressure in patients with chronic glomerulonephritis and arterial hypertension at different stages of chronic kidney disease. Methods. 76 patients with chronic glomerulonephritis and arterial hypertension were examined: 13.2% with chronic kidney disease stage 1 (G1), 15.8% G2, 21.0% G3, 23.7% G4, 26.3% G5D. For the daily monitoring of central (in aorta) and peripheral blood pressure (in brachial artery), the BPLab monitor and the Vasotens-24 technology were used. Results. In the examined patients central and peripheral systolic, diastolic, and pulse blood pressure increased with renal function decline. Thus, the daily systolic pressure increased from 112 [107; 129] mm Hg in the aorta and 127 [118; 131] mm Hg in the brachial artery in patients with G1 to 146 [137; 153] and 147 [138; 155] mm Hg with G5D; diastolic — from 76 [70; 83] and 78 [71; 85] to 96 [82; 104] and 97 [81; 107] mm Hg; pulse pressure — from 36 [33; 45] and 48 [42; 51] to 53 [45; 56] and 62 [50; 65] mm Hg (p <0.05). A statistically significant excess of peripheral values over the corresponding parameters of central blood pressure for systolic (in groups G1–2) and pulse (G1–4) pressure was detected. Thus, in patients with G2, the average daily systolic pressure was 132 [115; 136] mm Hg in brachial artery and 113 [110; 127] mm Hg in aorta, pulse pressure — 49 [41; 52] and 33 [30; 41] mm Hg (p <0.05). With further progression of renal failure, these differences were not reliably detected. Most patients had a defect of the daily aortic and brachial blood pressure rhythm but the dipper status of systolic and diastolic blood pressure was less common than brachial one (24 and 20% versus 39 and 35%, χ2=5.21 and 5.64; p <0.05). Conclusion. The features of the peripheral and central blood pressure daily indices at different stages of chronic kidney disease in patients with chronic glomerulonephritis and arterial hypertension determine the relevance of their further study to compare the effect on cardiovascular risk and renal failure progression.


2020 ◽  
Vol 16 (4) ◽  
pp. 623-634
Author(s):  
T. Yu. Demidova ◽  
O. A. Kislyak

Arterial hypertension (AH) is powerful and modifying factor of developing macrovascular and microvascular complications of diabetes. Patients with AH and diabetes belong to group with high and very high levels risk of developing cardiovascular complications and chronic kidney disease. The combination of type 2 diabetes mellitus and AH dramatically increases the risk of developing terminal stages of microvascular and macrovascular diabetic complications: blindness, end-stage chronic kidney disease, amputation of the lower extremities, myocardial infarction, cerebral stroke, worsens the patients prognosis and quality of life. There is ample evidence that blood pressure control in diabetic patients may be critical for improving long-term prognosis. This observation does not lose its relevance even with the emergence of new antidiabetic drugs with proven cardio- and nephroprotective effects. Modern clinical researchers and meta-analysis show the priority of combined antihypertensive therapy, which increases the efficacy of blood pressure correction and prophylaxis of long-term complications in patients with type 2 diabetes. In this article we want to pay attention to features of AH in patients with diabetes, to bi-directional pathogenic mechanisms, to discuss the new algorithms of the treatment and therapeutic needs of these patients. It is important to accent the understanding of the integrity and unity of pathogenic mechanisms which are needed in correction. Innovative antihyperglycemic therapy demonstrates the ability of blood pressure decrease. The synergy of effects let us successfully realize the strategy of multi-factor control and reduce a risk of micro- and macrovascular complications.


Author(s):  
Dmitriy Sergeevich Kovalev

Arterial hypertension is considered treatment refractory (resistant), if the treatment, involving a change (improvement) in lifestyle and a rational combined antihypertensive therapy, consisting of three drugs, including a diuretic, in the maximum tolerated doses does not lead to the achievement of the target blood pressure level. Pseudo-refractory and true refractory arterial hypertension are distinguished. According to modern data, true refractory arterial hypertension occurs in no more than 5 % of cases among the entire population of patients with arterial hypertension, however, in certain groups of patients, for instance, with chronic kidney disease, its prevalence can reach 30–50 %. The article presents a clinical case of diagnosis and treatment of refractory arterial hypertension.


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