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Sharp AS, Sanderson A, Hansell N, Reddish K, Miller P, Moss J, Schmieder RE, McCool R. Renal denervation for uncontrolled hypertension: a systematic review and meta-analysis examining multiple subgroups. J Hypertens 2024; 42:1133-1144. [PMID: 38634457 PMCID: PMC11139244 DOI: 10.1097/hjh.0000000000003727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/04/2024] [Accepted: 03/12/2024] [Indexed: 04/19/2024]
Abstract
This systematic review and meta-analysis was conducted to assess the randomized controlled trial (RCT) evidence available for renal denervation (RDN) in uncontrolled arterial hypertension. Twenty-five RCTs met the eligibility criteria for the systematic review, and 16 RCTs were included in the meta-analysis. The results of the random effects meta-analysis estimated a mean difference of -8.5 mmHg [95% confidence interval (CI) -13.5 to -3.6] for office SBP, -3.6 mmHg (95% CI -5.2 to -2.0) for 24 h SBP and -3.9 mmHg (95% CI -5.6 to -2.2) for ambulatory daytime SBP in favour of RDN compared with control (medication and/or sham-only) at primary follow-up. Similarly favourable results were observed across a range of prespecified subgroup analyses, including treatment-resistant hypertension. This meta-analysis suggests that the use of RDN in uncontrolled hypertension leads to consistent reductions in blood pressure. Reductions appear to be statistically consistent in the presence or absence of medications and in populations resistant to the use of three medications.
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Affiliation(s)
| | - Alice Sanderson
- York Health Economics Consortium Ltd, York Science Park, York, UK
| | - Neil Hansell
- York Health Economics Consortium Ltd, York Science Park, York, UK
| | - Katie Reddish
- York Health Economics Consortium Ltd, York Science Park, York, UK
| | - Paul Miller
- York Health Economics Consortium Ltd, York Science Park, York, UK
| | - Joe Moss
- York Health Economics Consortium Ltd, York Science Park, York, UK
| | - Roland E. Schmieder
- Department of Nephrology and Hypertension University Hospital Erlangen, Friedrich Alexander University Erlangen/Nürnberg, Germany
| | - Rachael McCool
- York Health Economics Consortium Ltd, York Science Park, York, UK
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2
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Afsar B, Afsar RE, Caliskan Y, Lentine KL. Brain natriuretic peptide and N-terminal pro b-type natriuretic peptide in kidney transplantation: More than just cardiac markers. Transplant Rev (Orlando) 2024; 38:100869. [PMID: 38909518 DOI: 10.1016/j.trre.2024.100869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/15/2024] [Accepted: 06/16/2024] [Indexed: 06/25/2024]
Abstract
Although kidney transplantation (KT) is the best treatment option for most patients with end-stage kidney disease (ESKD) due to reduced mortality, morbidity and increased quality of life, long- term complications such as chronic kidney allograft dysfunction (CKAD) and increased cardiovascular disease burden are still major challenges. Thus, routine screening of KT recipients (KTRs) is very important to identify and quantify risks and guide preventative measures. However, no screening parameter has perfect sensitivity and specificity, and there is unmet need for new markers. In this review, we evaluate brain natriuretic peptide (BNP) and N-terminal pro b-type natriuretic peptide (NT-proBNP) as promising markers for risk stratification in the kidney transplant recipients (KTRs). The usefulness of these markers are already proven in heart failure, hypertension, coronary artery disease. In the context of KT, evidence is emerging. BNP and NT-proBNP has shown to be associated with kidney function, graft failure, echocardiographic parameters, major cardiovascular events and mortality but the underlying mechanisms are not known. Although BNP and NT-proBNP interact with immune system, renin angiotensin system and sympathetic system; it is not known whether these interactions are responsible for the clinical findings observed in KTRs. Future studies are needed whether these biomarkers show clinical efficacy, especially with regard to hard outcomes such as major adverse cardiovascular events and graft dysfunction and whether routine implementation of these markers are cost effective in KTRs.
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Affiliation(s)
- Baris Afsar
- Suleyman Demirel University, School of Medicine, Department of Nephrology, Turkey; Saint Louis University Transplant Center, SSM Health Saint Louis University Hospital, St. Louis, MO, USA.
| | - Rengin Elsurer Afsar
- Suleyman Demirel University, School of Medicine, Department of Nephrology, Turkey; Saint Louis University Transplant Center, SSM Health Saint Louis University Hospital, St. Louis, MO, USA
| | - Yasar Caliskan
- Saint Louis University Transplant Center, SSM Health Saint Louis University Hospital, St. Louis, MO, USA
| | - Krista L Lentine
- Saint Louis University Transplant Center, SSM Health Saint Louis University Hospital, St. Louis, MO, USA
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3
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Hamza M, Kalsoom S, Riaz A. Comment on "renal denervation for hypertension". Curr Probl Cardiol 2024; 49:102401. [PMID: 38232919 DOI: 10.1016/j.cpcardiol.2024.102401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 01/14/2024] [Indexed: 01/19/2024]
Abstract
We have attentively reviewed the article "Renal Denervation for Hypertension" and commend the author's dedication to addressing this intricate subject. However, we wish to highlight a few points that, in our assessment, could enhance the overall quality of the article.
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Affiliation(s)
- Muhammad Hamza
- Department of Medicine, Fazaia Medical College Islamabad, Pakistan.
| | - Sidra Kalsoom
- Department of Medicine, Fazaia Medical College Islamabad, Pakistan
| | - Asma Riaz
- Department of Medicine, Fazaia Medical College Islamabad, Pakistan
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Jelaković B, Perkov D, Barišić K, Bukal N, Gellineo L, Jelaković A, Josipović J, Prkačin I, Željković Vrkić T, Živko M. Renal Denervation in the Treatment of Resistant Hypertension and Difficult-to-Control Hypertension - Consensus Document of the Croatian Hypertension League - Croatian Society of Hypertension, Croatian Cardiac Society, Croatian Endovascular Initiative, Croatian Society for Diabetes and Metabolic Diseases, Croatian Renal Association, and Croatian Society of Family Physicians of the Croatian Medical Association. Vasc Health Risk Manag 2023; 19:805-826. [PMID: 38108022 PMCID: PMC10724019 DOI: 10.2147/vhrm.s422773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/21/2023] [Indexed: 12/19/2023] Open
Abstract
Renal denervation (RDN) as a method of treating arterial hypertension (AH) was introduced in Croatia in 2012. A multidisciplinary team and a network of hospitals that diagnose and treat patients with severe forms of AH were established, and a very strict diagnostic-treatment algorithm was prepared. At monthly meetings patients with truly resistant hypertension who were candidates for RDN were discussed. According to the 2021 ESH position statement and 2023 ESH guidelines, RDN is considered an alternative and additional, not a competitive method of treating patients with various forms of AH which must be performed by following a structured procedure and the patient's preference should be considered. In view of the changes in the global scientific community, the Croatian Hypertension League brings this consensus document on RDN conducted with radiofrequency-based catheter, the only currently available method in Croatia. In this document, exclusion and inclusion criteria are shown, as well as three groups of patients in whom RDN could be considered. The new diagnostic-treatment algorithm is prepared and follow-up procedure is explained. In Croatia, RDN is reimbursed by the national insurance company, thus pharmacoeconomic analyses is also shown. Criteria required by an individual centre to be approved of RDN are listed, and plans for prospective research on RDN in Croatia, including the Croatian registry for RDN, are discussed.
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Affiliation(s)
- Bojan Jelaković
- School of Medicine University of Zagreb, Zagreb, Croatia
- Department of Nephrology, Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Dražen Perkov
- Department of Diagnostic and Interventional Radiology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Klara Barišić
- Department of Nephrology, Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Nikolina Bukal
- Department of Internal Medicine, Nephrology and Pulmonology, General Hospital “Dr. J. Benčević”, Slavonski Brod, Croatia
| | - Lana Gellineo
- Department of Nephrology, Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Ana Jelaković
- Department of Nephrology, Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Josipa Josipović
- Croatian Catholic University, Zagreb, Croatia
- Department of Nephrology and Dialysis, University Hospital Centre Sestre Milosrdnice, Zagreb, Croatia
| | - Ingrid Prkačin
- Department for Emergency Medicine, Clinical Hospital Merkur, Zagreb, Croatia
| | | | - Marijana Živko
- Department of Nephrology, Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
| | - On the behalf of Task force for the Resistant Hypertension and Renal Denervation of the Croatian Hypertension League
- School of Medicine University of Zagreb, Zagreb, Croatia
- Department of Nephrology, Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
- Department of Diagnostic and Interventional Radiology, University Hospital Centre Zagreb, Zagreb, Croatia
- Department of Internal Medicine, Nephrology and Pulmonology, General Hospital “Dr. J. Benčević”, Slavonski Brod, Croatia
- Croatian Catholic University, Zagreb, Croatia
- Department of Nephrology and Dialysis, University Hospital Centre Sestre Milosrdnice, Zagreb, Croatia
- Department for Emergency Medicine, Clinical Hospital Merkur, Zagreb, Croatia
- Institute for Cardiovascular Prevention and Rehabilitation, Zagreb, Croatia
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Cardiovascular Risk after Kidney Transplantation: Causes and Current Approaches to a Relevant Burden. J Pers Med 2022; 12:jpm12081200. [PMID: 35893294 PMCID: PMC9329988 DOI: 10.3390/jpm12081200] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 11/17/2022] Open
Abstract
Background. Cardiovascular disease is a frequent complication after kidney transplantation and represents the leading cause of mortality in this population. Material and Methods. We searched for the relevant articles in the National Institutes of Health library of medicine, transplant, cardiologic and nephrological journals. Results. The pathogenesis of cardiovascular disease in kidney transplant is multifactorial. Apart from non-modifiable risk factors, such as age, gender, genetic predisposition and ethnicity, several traditional and non-traditional modifiable risk factors contribute to its development. Traditional factors, such as diabetes, hypertension and dyslipidemia, may be present before and may worsen after transplantation. Immunosuppressants and impaired graft function may strongly influence the exacerbation of these comorbidities. However, in the last years, several studies showed that many other cardiovascular risk factors may be involved in kidney transplantation, including hyperuricemia, inflammation, low klotho and elevated Fibroblast Growth Factor 23 levels, deficient levels of vitamin D, vascular calcifications, anemia and poor physical activity and quality of life. Conclusions. The timely and effective treatment of time-honored and recently discovered modifiable risk factors represent the basis of the prevention of cardiovascular complications in kidney transplantation. Reduction of cardiovascular risk can improve the life expectancy, the quality of life and the allograft function and survival.
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Schmieder RE. Renal denervation in patients with chronic kidney disease: current evidence and future perspectives. Nephrol Dial Transplant 2022; 38:1089-1096. [PMID: 35617138 PMCID: PMC10157753 DOI: 10.1093/ndt/gfac189] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Indexed: 11/14/2022] Open
Abstract
Supported by several high-quality randomised clinical trials and registry analyses, catheter-based renal denervation is becoming an important adjunctive treatment modality for the safe and efficacious treatment of hypertension besides lifestyle modifications and antihypertensive medication. Renal denervation is of particular interest to nephrologists as the intervention may provide additional benefits to hypertensive people with chronic kidney disease (CKD), a condition typically characterised by sympathetic hyperactivity. A growing body of clinical evidence supports the safety and efficacy of renal denervation in this difficult-to-control population. In addition, preclinical and clinical research indicate potential nephroprotective effects in CKD patients. The current review examines recent research on renal denervation with focus on renal disease and assesses the latest findings and their implications from a nephrologist's perspective.
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Affiliation(s)
- Roland E Schmieder
- Department of Nephrology and Hypertension, University Hospital Erlangen, Friedrich-Alexander-University, Erlangen-Nuremberg, Germany
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Pisano A, Mallamaci F, D'Arrigo G, Bolignano D, Wuerzner G, Ortiz A, Burnier M, Kanaan N, Sarafidis P, Persu A, Ferro CJ, Loutradis C, Boletis IN, London G, Halimi JM, Sautenet B, Rossignol P, Vogt L, Zoccali C. Assessment of hypertension in kidney transplantation by ambulatory blood pressure monitoring: a systematic review and meta-analysis. Clin Kidney J 2022; 15:31-42. [PMID: 35035934 PMCID: PMC8757429 DOI: 10.1093/ckj/sfab135] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Indexed: 01/20/2023] Open
Abstract
Background Hypertension (HTN) is common following renal transplantation and it is associated with adverse effects on cardiovascular (CV) and graft health. Ambulatory blood pressure monitoring (ABPM) is the preferred method to characterize blood pressure (BP) status, since HTN misclassification by office BP (OBP) is quite common in this population. We performed a systematic review and meta-analysis aimed at determining the clinical utility of 24-h ABPM and its potential implications for the management of HTN in this population. Methods Ovid-MEDLINE and PubMed databases were searched for interventional or observational studies enrolling adult kidney transplant recipients (KTRs) undergoing 24-h ABP readings compared with OBP or home BP. The main outcome was the proportion of KTRs diagnosed with HTN by ABPM, home or OBP recordings. Additionally, day-night BP variability and dipper/non-dipper status were assessed. Results Forty-two eligible studies (4115 participants) were reviewed. A cumulative analysis including 27 studies (3481 participants) revealed a prevalence of uncontrolled HTN detected by ABPM of 56% [95% confidence interval (CI) 46-65%]. The pooled prevalence of uncontrolled HTN according to OBP was 47% (95% CI 36-58%) in 25 studies (3261 participants). Very few studies reported on home BP recordings. The average concordance rate between OBP and ABPM measurements in classifying patients as controlled or uncontrolled hypertensive was 66% (95% CI 59-73%). ABPM revealed HTN phenotypes among KTRs. Two pooled analyses of 11 and 10 studies, respectively, revealed an average prevalence of 26% (95% CI 19-33%) for masked HTN (MHT) and 10% (95% CI 6-17%) for white-coat HTN (WCH). The proportion of non-dippers was variable across the 28 studies that analysed dipping status, with an average prevalence of 54% (95% CI 45-63%). Conclusions In our systematic review, comparison of OBP versus ABP measurements disclosed a high proportion of MHT, uncontrolled HTN and, to a lesser extent, WCH in KTRs. These results suggest that HTN is not adequately diagnosed and controlled by OBP recordings in this population. Furthermore, the high prevalence of non-dippers confirmed that circadian rhythm is commonly disturbed in KTRs.
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Affiliation(s)
- Anna Pisano
- CNR-Institute of Clinical Physiology, Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension, Reggio Calabria, Italy
| | - Francesca Mallamaci
- CNR-Institute of Clinical Physiology, Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension, Reggio Calabria, Italy
| | - Graziella D'Arrigo
- CNR-Institute of Clinical Physiology, Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension, Reggio Calabria, Italy
| | - Davide Bolignano
- CNR-Institute of Clinical Physiology, Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension, Reggio Calabria, Italy
| | - Gregoire Wuerzner
- Service of Nephrology and Hypertension, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Alberto Ortiz
- Nephrology and Hypertension, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain
| | - Michel Burnier
- Service of Nephrology and Hypertension, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Nada Kanaan
- Division of Nephrology, Division of Cardiology, Cliniques Universitaires Saint-Luc and Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Pantelis Sarafidis
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Greece
| | - Alexandre Persu
- Division of Cardiology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Charles J Ferro
- Department of Renal Medicine, University Hospitals Birmingham and Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Charalampos Loutradis
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Greece
| | - Ioannis N Boletis
- Department of Nephrology and Renal Transplantation, Athens Medical School, Laiko Hospital
| | - Gérard London
- FCRIN INI-CRCT Cardiovascular and Renal Clinical Trialists, Manhes Hospital and FCRIN INI-CRCT, Manhes, France
| | - Jean-Michel Halimi
- Service de Néphrologie-Hypertension, Dialyses, Transplantation rénale, CHRU Tours,Tours, France and INSERM SPHERE U1246, Université Tours, Université de Nantes, Tours, France
| | - Bénédicte Sautenet
- Service de Néphrologie-Hypertension, Dialyses, Transplantation rénale, CHRU Tours, Tours, France and INSERM SPHERE U1246, Université Tours, Université de Nantes, Tours, France, and FCRIN INI-CRCT, Nancy, France
| | - Patrick Rossignol
- Université de Lorraine, Inserm 1433 CIC-P CHRU de Nancy, Inserm U1116 and FCRIN INI-CRCT, Nancy, France
| | - Liffert Vogt
- Department of Internal Medicine, Section Nephrology, Amsterdam UMC, University of Amsterdam, The Netherlands
| | - Carmine Zoccali
- CNR-Institute of Clinical Physiology, Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension, Reggio Calabria, Italy
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Update on Treatment of Hypertension After Renal Transplantation. Curr Hypertens Rep 2021; 23:25. [PMID: 33961145 DOI: 10.1007/s11906-021-01151-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE OF REVIEW To incorporate novel findings on pathophysiology and treatment of posttransplant hypertension. RECENT FINDINGS (1) The sodium retaining effects of CNIs are mediated by stimulation of the thiazide-sensitive sodium chloride co-transporter in the distal convoluted tubule and in this regard chlorthalidone was proven to be an effective antihypertensive drug in renal transplantation. (2) Local and not systemic activation of the renin-angiotensin-aldosterone system plays a crucial role in the pathogenesis of posttransplant hypertension. (3) Recent randomized controlled trials failed to prove the presumed superiority of renin-angiotensin blockers in kidney transplantation. (4) Steroid-free and mammalian target of rapamycin-based immunosuppressive drug combinations did not show favorable effects on blood pressure control. (5) In a recent report the risk of non-melanoma skin cancer was higher with thiazide diuretics. But the increased cancer risk in transplant recipients is mainly attributed to comorbidities, such as diabetes and hypertension and of course to the transplantation condition itself or the obligatory application of immunosuppression, and has little to do with the antihypertensive medication Actual recommendations about BP targets in adult renal transplant recipients are coming from a post hoc analysis of a large randomized trial with another primary endpoint. Unless convincing studies on treatment of hypertension after renal transplantation are available, the ESC/ESH Guidelines 2018 should apply for these patients.
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Tantisattamo E, Molnar MZ, Ho BT, Reddy UG, Dafoe DC, Ichii H, Ferrey AJ, Hanna RM, Kalantar-Zadeh K, Amin A. Approach and Management of Hypertension After Kidney Transplantation. Front Med (Lausanne) 2020; 7:229. [PMID: 32613001 PMCID: PMC7310511 DOI: 10.3389/fmed.2020.00229] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/04/2020] [Indexed: 12/14/2022] Open
Abstract
Hypertension is one of the most common cardiovascular co-morbidities after successful kidney transplantation. It commonly occurs in patients with other metabolic diseases, such as diabetes mellitus, hyperlipidemia, and obesity. The pathogenesis of post-transplant hypertension is complex and is a result of the interplay between immunological and non-immunological factors. Post-transplant hypertension can be divided into immediate, early, and late post-transplant periods. This classification can help clinicians determine the etiology and provide the appropriate management for these complex patients. Volume overload from intravenous fluid administration is common during the immediate post-transplant period and commonly contributes to hypertension seen early after transplantation. Immunosuppressive medications and donor kidneys are associated with post-transplant hypertension occurring at any time point after transplantation. Transplant renal artery stenosis (TRAS) and obstructive sleep apnea (OSA) are recognized but common and treatable causes of resistant hypertension post-transplantation. During late post-transplant period, chronic renal allograft dysfunction becomes an additional cause of hypertension. As these patients develop more substantial chronic kidney disease affecting their allografts, fibroblast growth factor 23 (FGF23) increases and is associated with increased cardiovascular and all-cause mortality in kidney transplant recipients. The exact relationship between increased FGF23 and post-transplant hypertension remains poorly understood. Blood pressure (BP) targets and management involve both non-pharmacologic and pharmacologic treatment and should be individualized. Until strong evidence in the kidney transplant population exists, a BP of <130/80 mmHg is a reasonable target. Similar to complete renal denervation in non-transplant patients, bilateral native nephrectomy is another treatment option for resistant post-transplant hypertension. Native renal denervation offers promising outcomes for controlling resistant hypertension with no significant procedure-related complications. This review addresses the epidemiology, pathogenesis, and specific etiologies of post-transplant hypertension including TRAS, calcineurin inhibitor effects, OSA, and failed native kidney. The cardiovascular and survival outcomes related to post-transplant hypertension and the utility of 24-h blood pressure monitoring will be briefly discussed. Antihypertensive medications and their mechanism of actions relevant to kidney transplantation will be highlighted. A summary of guidelines from different professional societies for BP targets and antihypertensive medications as well as non-pharmacological interventions, including bilateral native nephrectomy and native renal denervation, will be reviewed.
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Affiliation(s)
- Ekamol Tantisattamo
- Division of Nephrology, Hypertension and Kidney Transplantation, Department of Medicine, Harold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine School of Medicine, Orange, CA, United States.,Nephrology Section, Department of Medicine, Tibor Rubin Veterans Affairs Medical Center, VA Long Beach Healthcare System, Long Beach, CA, United States.,Section of Nephrology, Department of Internal Medicine, Multi-Organ Transplant Center, William Beaumont Hospital, Oakland University William Beaumont School of Medicine, Royal Oak, MI, United States
| | - Miklos Z Molnar
- Division of Nephrology, University of Tennessee Health Science Center, Memphis, TN, United States.,Methodist University Hospital Transplant Institute, Memphis, TN, United States.,Division of Transplant Surgery, Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Bing T Ho
- Division of Nephrology and Hypertension, Department of Medicine, Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Uttam G Reddy
- Division of Nephrology, Hypertension and Kidney Transplantation, Department of Medicine, Harold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine School of Medicine, Orange, CA, United States.,Nephrology Section, Department of Medicine, Tibor Rubin Veterans Affairs Medical Center, VA Long Beach Healthcare System, Long Beach, CA, United States
| | - Donald C Dafoe
- Division of Transplantation, Department of Surgery, University of California Irvine School of Medicine, Orange, CA, United States
| | - Hirohito Ichii
- Division of Transplantation, Department of Surgery, University of California Irvine School of Medicine, Orange, CA, United States
| | - Antoney J Ferrey
- Division of Nephrology, Hypertension and Kidney Transplantation, Department of Medicine, Harold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine School of Medicine, Orange, CA, United States.,Nephrology Section, Department of Medicine, Tibor Rubin Veterans Affairs Medical Center, VA Long Beach Healthcare System, Long Beach, CA, United States
| | - Ramy M Hanna
- Division of Nephrology, Hypertension and Kidney Transplantation, Department of Medicine, Harold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine School of Medicine, Orange, CA, United States
| | - Kamyar Kalantar-Zadeh
- Division of Nephrology, Hypertension and Kidney Transplantation, Department of Medicine, Harold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine School of Medicine, Orange, CA, United States.,Nephrology Section, Department of Medicine, Tibor Rubin Veterans Affairs Medical Center, VA Long Beach Healthcare System, Long Beach, CA, United States
| | - Alpesh Amin
- Department of Medicine, University of California Irvine School of Medicine, Orange, CA, United States
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Agasthi P, Shipman J, Arsanjani R, Ashukem M, Girardo ME, Yerasi C, Venepally NR, Fortuin FD, Mookadam F. Renal Denervation for Resistant Hypertension in the contemporary era: A Systematic Review and Meta-analysis. Sci Rep 2019; 9:6200. [PMID: 30996305 PMCID: PMC6470219 DOI: 10.1038/s41598-019-42695-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 04/04/2019] [Indexed: 02/08/2023] Open
Abstract
Renal denervation (RDN) is a catheter-based ablation procedure designed to treat resistant hypertension (RH). The objective of our study is to determine the effect of RDN on blood pressure and renal function in patients with RH in comparison to medical therapy alone. We performed an extensive literature search for randomized control trials (RCT) reporting office and 24 hr. blood pressure changes and estimated glomerular filtration rate (eGFR) at baseline and 6 months. We calculated a weighted standardized mean difference of blood pressure and renal outcomes between RDN and control groups using random effects models. Our search yielded 608 studies of which we included 15 studies for the final analysis. A total of 857 patients were treated with RDN and 616 patients treated with medical therapy ± sham procedure. Only 5 studies were double-blinded RCT with sham control. The adjusted standardized mean difference in the change in office based systolic and diastolic pressures (p = 0.18; p = 0.14); 24 hr. systolic and diastolic pressures (p = 0.20; p = 0.18); and eGFR (p = 0.20) from baseline to 6 months is statistically insignificant with significant heterogeneity. Subgroup analysis showed that among sham controlled trials, 24 hr. systolic blood pressure showed a modest but statistically significant benefit favoring renal denervation in patients with RH. Our meta-analysis of 15 RCTs showed no significant benefit of RDN on blood pressure control in patients with resistant hypertension. Subgroup analysis of sham control studies showed a modest benefit in 24 hr. systolic blood pressure at 6 months with RDN.
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Affiliation(s)
- Pradyumna Agasthi
- Division of Cardiovascular Diseases, Mayo Clinic Arizona, Phoenix, Arizona, USA.
| | - Justin Shipman
- Division of Cardiovascular Diseases, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Reza Arsanjani
- Division of Cardiovascular Diseases, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Moses Ashukem
- Division of Cardiovascular Medicine, University of Arizona, Phoenix, Arizona, USA
| | - Marlene E Girardo
- Department of Health Sciences Research, Mayo Clinic Arizona, Scottsdale, Arizona, USA
| | - Charan Yerasi
- Department of Cardiovascular Diseases, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Nithin R Venepally
- Division of Cardiovascular Diseases, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Floyd David Fortuin
- Division of Cardiovascular Diseases, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Farouk Mookadam
- Division of Cardiovascular Diseases, Mayo Clinic Arizona, Phoenix, Arizona, USA
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11
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Hoye NA, Wilson LC, Jardine DL, Walker RJ. Sympathetic overactivity in dialysis patients-Underappreciated and clinically consequential. Semin Dial 2018; 32:255-265. [PMID: 30461070 DOI: 10.1111/sdi.12756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cardiovascular morbidity and mortality remain frustratingly common in dialysis patients. A dearth of established evidence-based treatment calls for alternative therapeutic avenues to be embraced. Sympathetic hyperactivity, predominantly due to afferent nerve signaling from the diseased native kidneys, has been established to be prognostic in the dialysis population for over 15 years. Despite this, tangible therapeutic interventions have, to date, been unsuccessful and the outlook for patients remains poor. This narrative review summarizes established experimental and clinical data, highlighting recent developments, and proposes why interventions to ameliorate sympathetic hyperactivity may well be beneficial for this high-risk population.
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Affiliation(s)
- Neil A Hoye
- Department of Renal Medicine, South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK
| | - Luke C Wilson
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - David L Jardine
- Department of Medicine, University of Otago, Christchurch, Otago, New Zealand
| | - Robert J Walker
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
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Pietilä-Effati PM, Salmela AK, Koistinen MJ. Intravascular Renal Denervation in Renal Dialysis Patients with Uncontrolled Hypertension: A Case Series of Four Patients. AMERICAN JOURNAL OF CASE REPORTS 2018; 19:985-991. [PMID: 30127334 PMCID: PMC6111771 DOI: 10.12659/ajcr.909820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Case series Patient: Male, 24 • Female, 55 • Female, 56 • Male, 72 Final Diagnosis: Hypertension Symptoms: Dyspnea Medication: — Clinical Procedure: Intravascular renal denervation Specialty: Cardiology
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Affiliation(s)
| | - Anna K Salmela
- Department of Nephrology, Vaasa Central Hospital, Vaasa, Finland
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Mauriello A, Rovella V, Borri F, Anemona L, Giannini E, Giacobbi E, Saggini A, Palmieri G, Anselmo A, Bove P, Melino G, Valentina G, Tesauro M, Gabriele D, Di Daniele N. Hypertension in kidney transplantation is associated with an early renal nerve sprouting. Nephrol Dial Transplant 2018; 32:1053-1060. [PMID: 28498963 PMCID: PMC5837349 DOI: 10.1093/ndt/gfx069] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 02/20/2017] [Indexed: 12/30/2022] Open
Abstract
Background. Normalization of arterial pressure occurs in just a few patients with hypertensive chronic kidney disease undergoing kidney transplantation. Hypertension in kidney transplant recipients may be related to multiple factors. We aimed to assess whether hypertension in kidney-transplanted patients may be linked to reinnervation of renal arteries of the transplanted kidney. Methods. We investigated renal arteries innervation from native and transplanted kidneys in three patients 5 months, 2 years and 11 years after transplantation, respectively. Four transplanted kidneys from non-hypertensive patients on immunosuppressive treatment without evidence of hypertensive arteriolar damage were used as controls. Results. Evidence of nerve sprouting was observed as early as 5 months following transplantation, probably originated from ganglions of recipient patient located near the arterial anastomosis and was associated with mild hypertensive arteriolar damage. Regeneration of periadventitial nerves was already complete 2 years after transplantation. Nerve density tended to reach values observed in native kidney arteries and was associated with hypertension-related arteriolar lesions in transplanted kidneys. Control kidneys, albeit on an immunosuppressive regimen, presented only a modest regeneration of sympathetic nerves. Conclusions. Our results suggest that the considerable increase in sympathetic nerves, as found in patients with severe arterial damage, may be correlated to hypertension rather than to immunosuppressive therapy, thus providing a morphological basis for hypertension recurrence despite renal denervation.
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Affiliation(s)
- Alessandro Mauriello
- Anatomic Pathology, Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Valentina Rovella
- Hypertension and Nephrology Unit, Department of Systems Medicine, Tor Vergata University, Rome, Italy
| | - Filippo Borri
- Anatomic Pathology, Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Lucia Anemona
- Anatomic Pathology, Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Elena Giannini
- Anatomic Pathology, Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Erica Giacobbi
- Anatomic Pathology, Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Andrea Saggini
- Anatomic Pathology, Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Giampiero Palmieri
- Anatomic Pathology, Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Alessandro Anselmo
- Transplantation Surgery, Department of Surgery Policlinico Tor Vergata Foundation, Rome, Italy
| | - Pierluigi Bove
- Urology, Department of Experimental Medicine and Surgery, Rome, Italy
| | - Gerry Melino
- Biochemistry, Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Guardini Valentina
- Hypertension and Nephrology Unit, Department of Systems Medicine, Tor Vergata University, Rome, Italy
| | - Manfredi Tesauro
- Hypertension and Nephrology Unit, Department of Systems Medicine, Tor Vergata University, Rome, Italy
| | - D'Urso Gabriele
- Hypertension and Nephrology Unit, Department of Systems Medicine, Tor Vergata University, Rome, Italy
| | - Nicola Di Daniele
- Hypertension and Nephrology Unit, Department of Systems Medicine, Tor Vergata University, Rome, Italy
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Hypertension in the Kidney Transplant Recipient: Overview of Pathogenesis, Clinical Assessment, and Treatment. Cardiol Rev 2017; 25:102-109. [PMID: 27548684 DOI: 10.1097/crd.0000000000000126] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cardiovascular disease is the leading cause of death in patients with chronic renal disease and the most common cause of death and allograft loss among kidney transplant recipients. Transplant patients often have multiple cardiovascular risk factors antedating transplantation. Among the most prominent is hypertension (HTN), which affects at least 90% of transplant patients. Uncontrolled HTN is an independent risk factor for allograft loss. The etiology of HTN in transplant recipients is complex and multifactorial, including the use of essential immunosuppressive medications. Post-transplant HTN management requires a systematic and individualized approach with nonpharmacologic and pharmacologic therapies. There is no single ideal agent or treatment algorithm. Patients should regularly monitor and record their blood pressure at home. Often, multiple antihypertensive drugs are needed to achieve a goal blood pressure of 120-140/70-90 mm Hg. As transplant recipients commonly must take 8 to 12 different medications daily, adherence must be continually encouraged and monitored. Special attention must be paid to potential drug side effects and drug interactions with immunosuppressive medications.
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Hoye NA, Wilson LC, Wilkins GT, Jardine DL, Putt TL, Samaranayaka A, Schollum JBW, Walker RJ. Endovascular Renal Denervation in End-Stage Kidney Disease Patients: Cardiovascular Protection-A Proof-of-Concept Study. Kidney Int Rep 2017; 2:856-865. [PMID: 29270493 PMCID: PMC5733679 DOI: 10.1016/j.ekir.2017.04.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 04/17/2017] [Accepted: 04/26/2017] [Indexed: 01/28/2023] Open
Abstract
Introduction Sympathetic neural activation is markedly increased in end-stage kidney disease (ESKD). Catheter-based renal denervation (RDN) reduces sympathetic overactivity and blood pressure in resistant hypertension. We investigated the effect of RDN on sympathetic neural activation and left ventricular mass in patients with ESKD. Methods Nine ESKD (6 hemodialysis and 3 peritoneal dialysis) patients with dialysis vintage of ≥11 months were treated with RDN (EnligHTN system). Data were obtained on a nondialysis day; at baseline, 1, 3, and 12 months post-RDN. Results At baseline sympathetic neural activation measured by muscle sympathetic nervous activity (MSNA) and plasma norepinephrine concentrations were markedly elevated. Left ventricular hypertrophy (LVH) was evident in 8 of the 9 patients. At 12 months post-RDN, blind analysis revealed that MSNAfrequency (–12.2 bursts/min1, 95% CI [–13.6, –10.7]) and LV mass (–27 g/m2, 95% CI [–47, –8]) were reduced. Mean ambulatory BP (systolic: –24 mm Hg, 95% CI [–42, –5] and diastolic: –13 mm Hg, 95% CI [–22, –4]) was also reduced at 12 months. Office BP was reduced as early as 1 month (systolic: –25 mm Hg, 95% CI [–45, –5] and diastolic: –13 mm Hg, 95% CI [–24, –1]). Both ambulatory and office BP had clinically significant reductions in at least 50% of patients out to 12 months. Discussion Catheter-based RDN significantly reduced MSNA and LV mass as well as systemic BP in this group of patients with ESKD.
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Affiliation(s)
- Neil A Hoye
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand.,Department of Renal Medicine, St. James's University Hospital, Leeds, UK
| | - Luke C Wilson
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - Gerard T Wilkins
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - David L Jardine
- Department of Medicine, University of Otago, Christchurch, Otago, New Zealand
| | - Tracey L Putt
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - Ari Samaranayaka
- Department of Preventive and Social Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - John B W Schollum
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - Robert J Walker
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
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