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Zeder K, Siew ED, Kovacs G, Brittain EL, Maron BA. Pulmonary hypertension and chronic kidney disease: prevalence, pathophysiology and outcomes. Nat Rev Nephrol 2024:10.1038/s41581-024-00857-7. [PMID: 38890546 DOI: 10.1038/s41581-024-00857-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2024] [Indexed: 06/20/2024]
Abstract
Pulmonary hypertension (PH) is common in patients with chronic kidney disease (CKD) or kidney failure, with an estimated prevalence of up to 78% in those referred for right-heart catheterization. PH is independently associated with adverse outcomes in CKD, raising the possibility that early detection and appropriate management of PH might improve outcomes in at-risk patients. Among patients with PH, the prevalence of CKD stages 3 and 4 is estimated to be as high as 36%, and CKD is also independently associated with adverse outcomes. However, the complex, heterogenous pathophysiology and clinical profile of CKD-PH requires further characterization. CKD is often associated with elevated left ventricular filling pressure and volume overload, which presumably leads to pulmonary vascular stiffening and post-capillary PH. By contrast, a distinct subgroup of patients at high risk is characterized by elevated pulmonary vascular resistance and right ventricular dysfunction in the absence of pulmonary venous hypertension, which may represent a right-sided cardiorenal syndrome defined in principle by hypervolaemia, salt avidity, low cardiac output and normal left ventricular function. Current understanding of CKD-PH is limited, despite its potentially important ramifications for clinical decision making. In particular, whether PH should be considered when determining the suitability and timing of kidney replacement therapy or kidney transplantation is unclear. More research is urgently needed to address these knowledge gaps and improve the outcomes of patients with or at risk of CKD-PH.
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Affiliation(s)
- Katarina Zeder
- Division of Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Cardiovascular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- The University of Maryland-Institute for Health Computing, Bethesda, MD, USA
| | - Edward D Siew
- Division of Nephrology and Hypertension, Vanderbilt Center for Kidney Disease and Integrated Program for Acute Kidney Injury, Nashville, TN, USA
| | - Gabor Kovacs
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Evan L Brittain
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bradley A Maron
- Division of Cardiovascular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
- The University of Maryland-Institute for Health Computing, Bethesda, MD, USA.
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Mutsuyoshi Y, Ito K, Ookawara S, Ueda Y, Shindo M, Hirata M, Nonaka H, Morino J, Kaneko S, Kitano T, Miyazawa H, Hirai K, Morishita Y. Effects to cerebral oxygenation by arteriovenous fistula creation in patients with chronic kidney disease. J Vasc Access 2024:11297298241257431. [PMID: 38825801 DOI: 10.1177/11297298241257431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND Vascular access, including arteriovenous fistula (AVF), is essential in patients undergoing hemodialysis (HD). However, the presence of AVF is non-physiological in humans and could pose a burden to the systemic circulation or tissue microcirculation, potentially affecting tissue oxygenation, including in the brain. Recently, near-infrared spectroscopy has been used to measure regional oxygen saturation (rSO2) as a marker of cerebral oxygenation in various settings, including in patients undergoing HD. Thus far, no studies have reported changes in cerebral rSO2 before and after AVF creation. This study aimed to monitor the differences in cerebral oxygenation before and after AVF creation and to clarify the clinical factors affecting the changes in cerebral rSO2. METHODS Forty-eight patients (34 men, 14 women) with chronic kidney disease (CKD) who were not undergoing dialysis and newly created AVF were recruited. Cerebral rSO2 values before and after AVF creation were evaluated using near-infrared spectroscopy (INVOS 5100c). RESULTS Cerebral rSO2 values were significantly changed from 60.3% ± 7.5% to 58.4% ± 6.8% before and after AVF creation in all patients (p < 0.001). Cerebral rSO2 were also lower in patients with diabetes mellitus (DM) than in those without DM (57.5 ± 7.1 vs 63.7 ± 6.5, p = 0.003) before surgery; however, no differences of changes in cerebral rSO2 were observed between the two groups after AVF creation. Additionally, multivariate regression analysis identified changes in HR (standardized coefficient: 0.436) as independent factors associated with changes in cerebral rSO2. CONCLUSION Surgically created AVF was associated with the deterioration of cerebral rSO2 in patients with CKD not undergoing dialysis. Notably, AVF could cause cerebral hypoxia, and thus further studies are needed to clarify the clinical factors influencing changes in cerebral oxygenation after AVF creation.
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Affiliation(s)
- Yuko Mutsuyoshi
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kiyonori Ito
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Susumu Ookawara
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yuichiro Ueda
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | | | - Momoko Hirata
- Division of Nephrology, Chofu Touzan Hospital, Tokyo, Japan
| | - Hiroaki Nonaka
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Junki Morino
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Shohei Kaneko
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Taisuke Kitano
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Haruhisa Miyazawa
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Keiji Hirai
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yoshiyuki Morishita
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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Bews H, Jia S, Liu Y, Sklar J, Ducas J, Kirkpatrick I, Tam JW, Shah AH. High output cardiac state: evaluating the incidence, plausible etiologies and outcomes. Curr Probl Cardiol 2024; 49:102561. [PMID: 38599560 DOI: 10.1016/j.cpcardiol.2024.102561] [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: 03/27/2024] [Accepted: 04/07/2024] [Indexed: 04/12/2024]
Abstract
INTRODUCTION The high output cardiac state (HOCS) [cardiac index (CI) >4 L/min/m2 ], primarily driven by abnormally low systemic vascular resistance (SVR), is a relatively under-recognized condition. Although, majority of these patients meet criteria for heart failure (HF), their treatment should be aimed at the primary pathology, as the majority of guideline directed HF therapies can reduce SVR further. OBJECTIVES To characterize patients with HOCS and provide valuable insight into the condition. METHODS Patients investigated by right heart catheterization (RHC) at the St. Boniface Hospital, Winnipeg, Canada between January 2009 and November 2021 were reviewed. Two groups of patients were included: 1) HOCS [CI >4 L/min/m2], and 2) pre-HOCS [CI between 3.8-4.0 L/min/m2]. Their medical records were reviewed to identify plausible etiologies, relevant investigations, and outcomes. RESULTS 177/2950 (6 %) patients met criteria for inclusion: 144/177 (81 %) with HOCS [mean age 51 years (range 19 - 82); 67/144 (47 %) female] and 33/177 (19 %) with pre-HOCS [mean age 55 years (range 30 - 83); 6/33 (18 %) female]. The most common plausible etiologies for the HOCS included anemia (36 %), obesity (34 %), cirrhosis (17 %), and lung disease (32 %). Trans-thoracic echocardiography and magnetic resonance imaging findings were non-specific and predominantly described preserved left ventricular ejection fraction, and pulmonary hypertension. The population experienced high rates of hospitalization, and significantly high mortality [36/144 (25 %) of HOCS at a median follow-up of 31.5 months, and 13/33 (39 %) of pre-HOCS at a median follow-up of 17 months]. CONCLUSIONS HOCS is not an uncommon condition and is associated with high mortality. Current HF guideline should incorporate such evaluation into the diagnostic criteria.
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Affiliation(s)
- Hilary Bews
- Section of Cardiology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Sangyang Jia
- Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Yixiu Liu
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Jaime Sklar
- Department of Internal Medicine, University of Toronto, Toronto, Ontario, Canada
| | - John Ducas
- Section of Cardiology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Iain Kirkpatrick
- Department of Radiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - James W Tam
- Section of Cardiology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ashish H Shah
- Section of Cardiology, Department of Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
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Stoumpos S, Van Rhijn P, Mangion K, Thomson PC, Mark PB. Arteriovenous fistula for haemodialysis as a predictor of de novo heart failure in kidney transplant recipients. Clin Kidney J 2024; 17:sfae105. [PMID: 38737344 PMCID: PMC11087827 DOI: 10.1093/ckj/sfae105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Indexed: 05/14/2024] Open
Abstract
Background The haemodynamic effects of a functioning haemodialysis arteriovenous fistula (AVF) can cause or exacerbate heart failure (HF). We investigated whether the presence of an AVF at the time of kidney transplant (KT) is associated with de novo HF. Methods This was an observational cohort study including adult patients who received a KT in the West of Scotland between 2010 and 2020. We evaluated the risk and associations of pretransplant factors with de novo HF, alone and as a composite cardiovascular (CV) outcome (including non-fatal myocardial infarction, non-fatal stroke, de novo HF and CV death). Multivariable proportional hazards regression and sensitivity analyses were used to identify independent correlates of the outcomes. Results Among 1330 included patients, the incident rate of de novo HF after transplantation was 58/1000 person-years [95% confidence interval (CI) 50-67] in AVF patients (n = 716) compared with 33/1000 person-years (95% CI 27-41) in non-AVF patients (n = 614). De novo HF was associated with the presence of an AVF [adjusted hazard ratio (aHR) 2.14 (95% CI 1.40-3.26)], duration of dialysis [aHR 1.03/year increase (95% CI 1.01-1.04)], age at transplant [aHR 1.03/year increase (95% CI 1.02-1.05)], female sex [aHR 1.93 (95% CI 1.40-2.65)] and pretransplant diabetes [aHR 2.43 (95% CI 1.48-4.01)]. The presence of an AVF was also associated with the composite CV outcome [aHR 1.91 (95% CI 1.31-2.78)]. Conclusions The presence of an AVF may be an underrecognized modifiable predictor of de novo HF posttransplantation.
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Affiliation(s)
- Sokratis Stoumpos
- Renal and Transplant Unit, Queen Elizabeth University Hospital, Glasgow, UK
| | - Peter Van Rhijn
- Renal and Transplant Unit, Queen Elizabeth University Hospital, Glasgow, UK
| | - Kenneth Mangion
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Peter C Thomson
- Renal and Transplant Unit, Queen Elizabeth University Hospital, Glasgow, UK
| | - Patrick B Mark
- Renal and Transplant Unit, Queen Elizabeth University Hospital, Glasgow, UK
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
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Gerrickens MW, Yadav R, Vaes RH, Scheltinga MR. A scoping review on surgical reduction of high flow arteriovenous haemodialysis access. J Vasc Access 2024; 25:728-744. [PMID: 36428291 DOI: 10.1177/11297298221138361] [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] [Indexed: 02/17/2024] Open
Abstract
Volume flow (Qa) > 1.5-2 l /minQa in arteriovenous accesses may be associated with high flow related systemic or locoregional complications. A variety of surgical techniques are advocated for Qa reduction. Aim of this scoping review is to provide an overview of available evidence regarding the efficacy of this broad spectrum of interventions for Qa reduction in patients with a high flow haemodialysis access. PubMed and Embase were searched according to PRISMA-guidelines. Studies on invasive management of HFA were selected. Inclusion required an English description of surgical techniques in human HFAs including pre- and postoperative access flow-values. Sixty-six studies on 940 patients (mean age 56 years (3-90 years), male 62%, diabetes mellitus 26%, brachial artery-based arteriovenous access 65%) fulfilled inclusion criteria. Performed techniques were banding (58%), revision using distal inflow (12%), plication/anastomoplasty (10%), graft interposition (5%), proximal radial artery ligation (3%), aneurysm repair (4%), or miscellaneous other techniques (8%). Definition of HFA, work-up, indication for surgery and intraoperative monitoring were diverse. All techniques reduced Qa on the short term (mean drop 0.9-1.7 l/min). Secondary access patency rates varied between 70% and 93% (mean follow-up 15 (0-189) months). Definitions of success and recurrence varied widely precluding a comparison of efficacy of techniques. Patient specific factors legitimizing invasive treatment for HFA are discussed. Recommendations on reporting standards when dealing with HFA surgery are provided. In conclusion, the present report on the current management of high flow access does not allow for drawing any definite conclusions due to a lack of standardization in definition, indications for surgical intervention and techniques. Randomized trials comparing different Qa reducing techniques in symptomatic patients are warranted, as are trials comparing a wait-and-see approach versus Qa reduction in asymptomatic patients. As an overview of the variety of techniques was lacking, this scoping review might serve as a map for future researchers.
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Affiliation(s)
| | - Reshabh Yadav
- Department of Surgery, Máxima Medical Centre, Veldhoven, The Netherlands
| | - Roel Hd Vaes
- Department of Surgery, Máxima Medical Centre, Veldhoven, The Netherlands
| | - Marc Rm Scheltinga
- Department of Surgery, Máxima Medical Centre, Veldhoven, The Netherlands
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Garcia LP, Liu S, Lenihan CR, Montez-Rath ME, Chang TI, Winkelmayer WC, Khairallah P. Dialysis Modality, Transplant Characteristics, and Incident Atrial Fibrillation After Kidney Transplant: An Observational Study Using USRDS Data. Kidney Med 2024; 6:100741. [PMID: 38188456 PMCID: PMC10770630 DOI: 10.1016/j.xkme.2023.100741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024] Open
Abstract
Rationale & Objective Atrial fibrillation is the most common arrhythmia and is increasing in prevalence. The prevalence of atrial fibrillation is high among patients receiving dialysis, affecting ∼21.3% of the patients receiving hemodialysis and 15.5% of those receiving peritoneal dialysis. The association of previous dialysis modality with incident atrial fibrillation in patients after receiving their first kidney transplant has not been studied. Study Design We used the United States Renal Data System to retrospectively identify adult, Medicare-insured patients who received their first kidney transplant between January 1, 2005, and September 30, 2012 and who had not previously been diagnosed with atrial fibrillation. Setting & Participants The study included 43,621 patients who were aged 18 years older when receiving a first kidney transplant between January 1, 2005, and September 30, 2012 and whose primary payer was Medicare (parts A and B) at the time of transplantation and the 6 months preceding it. Exposure Dialysis modality used before transplant. Outcome Time to incidence of atrial fibrillation up to 3 years posttransplant. Analytical Approach Multivariable Cox regression was used to estimate HRs. Results Of 43,621 patients, 84.9% received hemodialysis and 15.1% received peritoneal dialysis before transplant. The mean ± SD age was 51 ± 13.6 years; 60.8% were male, 55.6% White, and 35.8% Black race. The mean dialysis vintage was 4.3 ± 2.8 years. Newly diagnosed atrial fibrillation after kidney transplant occurred in 286 patients (during 15,363 person-years) who had received peritoneal dialysis and in 2,315 patients (during 83,536 person-years) who had received hemodialysis. After multivariable adjustment, atrial fibrillation was 20% (95% CI, 4%-38%) more likely in those who had been receiving hemodialysis versus peritoneal dialysis, regardless of whether death was considered a competing risk or a censoring event. Each year of pretransplant dialysis vintage increased the risk of posttransplant atrial fibrillation by 6% (95% CI, 3%-9%). Limitations Residual confounding; data from billing claims does not specify the duration of atrial fibrillation or whether it is valvular. Conclusions Pretransplant hemodialysis, as compared with peritoneal dialysis, was associated with higher risk of newly diagnosed atrial fibrillation after a first kidney transplant. Plain-Language Summary New-onset atrial fibrillation (AF) occurs in 7% of kidney transplant recipients in the first 3 years posttransplantation. We conducted this study to determine whether pretransplant dialysis modality was associated with posttransplant AF. We identified 43,621 patients; 84.9% used hemodialysis and 15.1% used peritoneal dialysis pretransplant. Multivariable Cox regression was used to estimate hazard ratios. We found that patients receiving hemodialysis pretransplant were at 20% increased risk of developing posttransplant AF as compared with patients receiving peritoneal dialysis. As our understanding of transplant-specific risk factors for AF increases, we may be able to better risk-stratify transplant patients and develop monitoring and management strategies that can improve outcomes.
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Affiliation(s)
- Leonardo Pozo Garcia
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Sai Liu
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Colin R. Lenihan
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Maria E. Montez-Rath
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Tara I. Chang
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | | | - Pascale Khairallah
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX
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Ajmera J, Pol MM, Gysley BW, Yadav B. Flash pulmonary oedema following arteriovenous fistula surgery: rapid assessment and treatment is key to break the vicious cycle. BMJ Case Rep 2023; 16:e253498. [PMID: 36948521 PMCID: PMC10040034 DOI: 10.1136/bcr-2022-253498] [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] [Indexed: 03/24/2023] Open
Abstract
An early adolescent boy with chronic kidney disease on haemodialysis was referred to the surgical clinic for the creation of an arteriovenous fistula. He was undergoing treatment for dilated cardiomyopathy and extrapulmonary tuberculosis. The patient was haemodynamically stable during the procedure, but he developed rapidly progressing dyspnoea, tachycardia and tachypnoea about 10 min after the vessels were declamped. His blood pressure rapidly rose above 220/120 mm Hg and saturation dropped below 90%. A multidisciplinary team (MDT) constituted of surgeons, nephrologists and intensivists was quickly activated. The patient was put on a mechanical ventilator and resuscitated with parenteral antihypertensives, diuretics, amiodarone and haemodialysis. The patient improved clinically and was discharged on the third postoperative day. Thus, a rapidly activated MDT approach was key in breaking the vicious cycle caused by hypertensive crisis, myocardial dysfunction and impending ventilatory failurethat occurred following access surgery.
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Ingle K, Pham L, Lee V, Guo L, Isayeva-Waldrop T, Somarathna M, Lee T. Cardiac changes following arteriovenous fistula creation in a mouse model. J Vasc Access 2023; 24:124-132. [PMID: 34144670 PMCID: PMC9013201 DOI: 10.1177/11297298211026083] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Arteriovenous fistula (AVF) creation may negatively affect cardiac structure and function and impact cardiovascular mortality. The objective of this study was to develop and characterize the cardiac changes following AVF creation in a murine AVF model. METHODS AVFs were constructed using the carotid artery and jugular vein in C57BL/6 mice. Sham-operated AVF mice served as the control group. 2D-echocardiography was performed prior to AVF creation (baseline) and at 7 and 21 days after creation in AVF and sham-operated mice. Picrosirius red was used to stain the left ventricle for collagen production. RESULTS The cardiac output (CO), left ventricular end diastolic (LVEDD) and systolic (LVESD) diameter, and end-diastolic (LVEDV) and systolic (LVESV) volume was significantly increased at 7 and 21 days in AVF compared to sham-operated mice. There was also a significant increase in CO, LVEDD, LVESD, LVEDV, and LVESV from baseline to 21 days within the AVF group, but not the sham-operated mice. There was a significant decrease in ejection fraction and fractional shortening at 21 days in AVF compared to sham-operated mice. Picrosirius red was significantly more prominent around both the perivascular and interstitial areas of the cardiac tissue from AVF mice compared to sham-operated AVF mice at 21 days. CONCLUSIONS The creation of an AVF in our murine model leads to cardiac changes such as increased cardiac output, left ventricular dilation, and cardiac fibrosis, while showing reductions of ejection fraction and fractional shortening.
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Affiliation(s)
- Kevin Ingle
- Department of Medicine and Division of Nephrology, University of Alabama at Birmingham, AL
| | - Linh Pham
- Department of Medicine and Division of Nephrology, University of Alabama at Birmingham, AL
| | - Viangkaeo Lee
- Department of Medicine and Division of Nephrology, University of Alabama at Birmingham, AL
| | - Lingling Guo
- Department of Medicine and Division of Nephrology, University of Alabama at Birmingham, AL
| | | | - Maheshika Somarathna
- Department of Medicine and Division of Nephrology, University of Alabama at Birmingham, AL
| | - Timmy Lee
- Department of Medicine and Division of Nephrology, University of Alabama at Birmingham, AL,Veterans Affairs Medical Center, Birmingham, AL
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Van den Eynde J, Jacquemyn X, Cloet N, Noé D, Gillijns H, Lox M, Gsell W, Himmelreich U, Luttun A, McCutcheon K, Janssens S, Oosterlinck W. Arteriovenous Fistulae in Chronic Kidney Disease and the Heart: Physiological, Histological, and Transcriptomic Characterization of a Novel Rat Model. J Am Heart Assoc 2022; 11:e027593. [PMID: 36205249 DOI: 10.1161/jaha.122.027593] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Arteriovenous fistulae (AVFs) are the gold standard for vascular access in those requiring hemodialysis but may put an extra hemodynamic stress on the cardiovascular system. The complex interactions between the heart, kidney, and AVFs remain incompletely understood. Methods and Results We characterized a novel rat model of five-sixths partial nephrectomy (NX) and AVFs. NX induced increases in urea, creatinine, and hippuric acid. The addition of an AVF (AVF+NX) further increased urea and a number of uremic toxins such as trimethylamine N-oxide and led to increases in cardiac index, left and right ventricular volumes, and right ventricular mass. Plasma levels of uremic toxins correlated well with ventricular morphology and function. Heart transcriptomes identified altered expression of 8 genes following NX and 894 genes following AVF+NX, whereas 290 and 1431 genes were altered in the kidney transcriptomes, respectively. Gene ontology and Kyoto Encyclopedia of Genes and Genomes analysis revealed gene expression changes related to cell division and immune activation in both organs, suppression of ribosomes and transcriptional activity in the heart, and altered renin-angiotensin signaling as well as chronodisruption in the kidney. All except the latter were worsened in AVF+NX compared with NX. Conclusions Inflammation and organ dysfunction in chronic kidney disease are exacerbated following AVF creation. Furthermore, our study provides important information for the discovery of novel biomarkers and therapeutic targets in the management of cardiorenal syndrome.
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Affiliation(s)
| | | | - Nicolas Cloet
- Department of Cardiovascular Sciences KU Leuven Leuven Belgium
| | - Dries Noé
- Department of Cardiovascular Sciences KU Leuven Leuven Belgium
| | - Hilde Gillijns
- Department of Cardiovascular Sciences KU Leuven Leuven Belgium
| | - Marleen Lox
- Department of Cardiovascular Sciences KU Leuven Leuven Belgium
| | - Willy Gsell
- MoSAIC, Biomedical MRI, Department of Imaging and Pathology KU Leuven Leuven Belgium
| | - Uwe Himmelreich
- MoSAIC, Biomedical MRI, Department of Imaging and Pathology KU Leuven Leuven Belgium
| | - Aernout Luttun
- Department of Cardiovascular Sciences KU Leuven Leuven Belgium.,Endothelial Cell Biology Unit, Center for Molecular and Vascular Biology KU Leuven Leuven Belgium
| | - Keir McCutcheon
- Department of Cardiology Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle University Newcastle United Kingdom
| | - Stefan Janssens
- Department of Cardiovascular Sciences KU Leuven Leuven Belgium.,Department of Cardiovascular Diseases University Hospitals Leuven Leuven Belgium
| | - Wouter Oosterlinck
- Department of Cardiovascular Sciences KU Leuven Leuven Belgium.,Department of Cardiovascular Diseases University Hospitals Leuven Leuven Belgium
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Shen A, Li R, Li Y, Guo J, Wang J, Sui X. A system of real-time neural recording and stimulation and its potential application in blood pressure modulation. FRONTIERS IN MEDICAL TECHNOLOGY 2022; 4:941686. [PMID: 36035774 PMCID: PMC9399767 DOI: 10.3389/fmedt.2022.941686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
Hypertension is one of the most prevalent chronic diseases that affects more than 20% of the adult population worldwide, but fortunately, most of their blood pressure can be effectively controlled via drug treatment. However, there still remains 5–30% of patients clinically who do not respond well to conventional medication, while the non-drug treatments currently existing are struggling with major drawbacks like irreversible nerve damage, huge side effects, and even non-effectiveness. In this study, based on the physiological regulation mechanism of blood pressure and state-of-the-art neuromodulation technique, we worked along with the vagus nerve stimulation scheme, developed, and explored whether and how a real-time neural recording and stimulation system could provide an insight into self-adaptive modulation in the blood pressure, in the hope to crack a crevice in the closed-loop treatment for resistant hypertension. Unlike traditional neuromodulation devices, additional signal recording and real-time wireless transmission functions are added to the same device to realize the features of a dynamic monitor and modulator. The system is tested both in vitro and in vivo, showing decent electrical performance of 8 kHz sampling rate and flexible stimulation outputs which sufficiently covers our needs in manipulating neural activities of interest. A relatively stable drop in the blood pressure resulting from stimulation was observed and specific patterns in the vagus nerve signals relating to blood pressure could also be primarily identified. This laid a solid foundation for further studies on the final realization of closed-loop automatic adjustment for resistive hypertension treatment.
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Affiliation(s)
- Anruo Shen
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Runhuan Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yiran Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jinyao Guo
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jiguang Wang
- Shanghai Institute of Hypertension, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Jiguang Wang
| | - Xiaohong Sui
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Xiaohong Sui
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Choi YS, Lee IJ, An JN, Song YR, Kim SG, Lee HS, Kim JK. High-flow arteriovenous fistula and myocardial fibrosis in hemodialysis patients with non-contrast cardiac magnetic resonance imaging. Front Cardiovasc Med 2022; 9:922593. [PMID: 35966517 PMCID: PMC9363608 DOI: 10.3389/fcvm.2022.922593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/11/2022] [Indexed: 11/17/2022] Open
Abstract
Background The role of high-flow arteriovenous fistula (AVF) in cardiovascular morbidity in hemodialysis (HD) patients is very likely under-recognized. We assessed the relationship between high access flow (Qa) and myocardial fibrosis in HD patients. Methods Myocardial fibrosis was assessed by native T1 relaxation times on non-contrast cardiac magnetic resonance imaging and a potential marker of fibrosis. Serum levels of galectin-3, N-terminal pro-B-type natriuretic peptide (NT-proBNP), and monocyte chemoattractant protein 1 (MCP-1) were measured in 101 HD patients who underwent regular monitoring of AVF Qa. A high-flow AVF was defined as a Qa >2 L/min. Results Hemodialysis patients showed significantly higher galectin-3 value and increased T1 relaxation time compared to healthy volunteers, suggesting increased myocardial fibrosis in uremic cardiomyopathy. In HD patients, 20 (19.8%) had a Qa > 2L/min, and they had significantly higher cardiac output, cardiac index, left ventricular mass, and increased T1 times than those with a Qa ≤ 2 L/min. Also, serum galectin-3 and NT-proBNP levels were much higher in the high Qa group, indicating a close relationship between the high Qa, increased myocardial fibrosis, and the risk of heart failure (HF) in HD patients. It is interesting that a higher AVF Qa for myocardial fibrosis was independent of several traditional cardiovascular risk factors as well as serum levels of NT-proBNP and MCP-1. Conclusions A supra-physiologically high Qa can be related to myocardial fibrosis and increased risk of HF in HD patients. Regular Qa monitoring could allow early detection of a high-flow AVF that could arise cardiac complications.
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Affiliation(s)
- Yong Seon Choi
- Department of Internal Medicine & Kidney Research Institute, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - In Jae Lee
- Department of Radiology, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Jung Nam An
- Department of Internal Medicine & Kidney Research Institute, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Young Rim Song
- Department of Internal Medicine & Kidney Research Institute, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Sung Gyun Kim
- Department of Internal Medicine & Kidney Research Institute, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Hyung Seok Lee
- Department of Internal Medicine & Kidney Research Institute, Hallym University Sacred Heart Hospital, Anyang, South Korea
- *Correspondence: Jwa-Kyung Kim
| | - Jwa-Kyung Kim
- Department of Internal Medicine & Kidney Research Institute, Hallym University Sacred Heart Hospital, Anyang, South Korea
- Hyung Seok Lee
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12
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Soliman M, Attallah N, Younes H, Park WS, Bader F. Clinical and Haemodynamic Effects of Arteriovenous Shunts in Patients with Heart Failure with Preserved Ejection Fraction. Card Fail Rev 2022; 8:e05. [PMID: 35284092 PMCID: PMC8900136 DOI: 10.15420/cfr.2021.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/21/2021] [Indexed: 12/02/2022] Open
Abstract
The arteriovenous shunt (AVS) is the most commonly used vascular access in patients receiving regular haemodialysis. The AVS may have a significant haemodynamic impact on patients with heart failure. Many studies have sought to understand the effect of AVS creation or closure on heart structure and functions, most of which use non-invasive methods, such as echocardiography or cardiac MRI. Data are mainly focused on heart failure with reduced ejection fraction and there are limited data on heart failure with preserved ejection fraction. The presence of an AVS has a significant haemodynamic impact on the cardiovascular system and it is a common cause of high-output cardiac failure. Given that most studies to date use non-invasive methods, invasive assessment of the haemodynamic effects of the AVS using a right heart catheter may provide additional valuable information.
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Affiliation(s)
- Medhat Soliman
- Heart and Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Nizar Attallah
- Nephrology and Renal Transplant Department, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Houssam Younes
- Heart and Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Woo Sup Park
- Heart and Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Feras Bader
- Heart and Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
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13
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Horio T, Ito S, Fujimoto K, Izumiya Y, Yoshiyama M, Iwashima Y, Nakamura S, Yoshihara F. Kinetics of atrial and brain natriuretic peptides during hemodialysis are regulated in association with different cardiac functional changes. Heart Vessels 2022; 37:1146-1152. [PMID: 35001145 DOI: 10.1007/s00380-021-02011-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/03/2021] [Indexed: 11/28/2022]
Abstract
The blood levels of atrial and brain natriuretic peptides (ANP and BNP) are both increased markedly in hemodialysis patients, but the kinetics of the two are not always parallel. The present study investigated the association of changes in ANP and BNP levels before and after dialysis with changes in cardiac function in hemodialysis patients. A total of 57 patients (mean age 64 years, 47 males and 10 females) on maintenance hemodialysis with sinus rhythm were enrolled. Blood samples were taken at the beginning and end of dialysis, and plasma levels of ANP and BNP were measured. Changes in cardiac function during dialysis were examined by echocardiography performed just before and after dialysis. Both plasma ANP and BNP concentrations decreased significantly after hemodialysis, but the rate of decrease in BNP [mean ± SD, 555 ± 503 to 519 ± 477 pg/mL (- 6.4%), P = 0.011] was much smaller than that in ANP [233 ± 123 to 132 ± 83 pg/mL (- 43.4%), P < 0.001]. As for the relation to the changes in echocardiographic parameters before and after dialysis, the decrease in inferior vena cava diameter had a close correlation with the decrease in ANP (r = 0.528, P < 0.001), but not BNP. In contrast, the decrease in left ventricular end-diastolic volume index was correlated only with the decrease in BNP (r = 0.297, P = 0.035). The peak velocity ratio of early diastolic to atrial filling decreased with preload reduction by dialysis, and its decrease was more strongly correlated with the decrease in BNP (r = 0.407, P = 0.002) than that in ANP (r = 0.273, P = 0.040). These results demonstrated that in hemodialysis patients, the decrease in plasma ANP by a single dialysis was essentially caused by blood volume reduction, while BNP decrease was mainly induced by the reduction of left ventricular overload. Our findings indicate that the kinetics of both peptides during dialysis are regulated by different cardiac and hemodynamic factors.
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Affiliation(s)
- Takeshi Horio
- Department of Cardiovascular Medicine, Ishikiriseiki Hospital, 18-28 Yayoi-cho, Higashiosaka, 579-8026, Japan.
| | - Shogo Ito
- Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Kohei Fujimoto
- Department of Cardiovascular Medicine, Ishikiriseiki Hospital, 18-28 Yayoi-cho, Higashiosaka, 579-8026, Japan
| | - Yasuhiro Izumiya
- Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Minoru Yoshiyama
- Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yoshio Iwashima
- Department of Nephrology and Hypertension, Dokkyo Medical University, Mibu, Japan
| | - Satoko Nakamura
- Department of Nutritional Sciences for Well-Being, Kansai University of Welfare Sciences, Kashiwara, Japan
| | - Fumiki Yoshihara
- Division of Nephrology and Hypertension, National Cerebral and Cardiovascular Center, Suita, Japan
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14
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Chronic Kidney Disease and Heart Failure-Everyday Diagnostic Challenges. Diagnostics (Basel) 2021; 11:diagnostics11112164. [PMID: 34829511 PMCID: PMC8624132 DOI: 10.3390/diagnostics11112164] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 01/10/2023] Open
Abstract
Is advanced chronic kidney disease (CKD) a cardiac “no man’s land”? Chronic heart failure (HF) is widely believed to be one of the most serious medical challenges of the 21st century. Moreover, the number of patients with CKD is increasing. To date, patients with estimated glomerular filtration rates <30 mL/min/1.73 m2 have frequently been excluded from large, randomized clinical trials. Although this situation is slowly changing, in everyday practice we continue to struggle with problems that are not clearly addressed in the guidelines. This literature review was conducted by an interdisciplinary group, which comprised a nephrologist, internal medicine specialists, and cardiologist. In this review, we discuss the difficulties in ruling out HF for patients with advanced CKD and issues regarding the cardiotoxicity of dialysis fistulas and the occurrence of pulmonary hypertension in patients with CKD. Due to the recent publication of the new HF guidelines by the European Society of Cardiology, this is a good time to address these difficult issues. Contrary to appearances, these are not niche issues, but problems that affect many patients.
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15
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Keller N, Monnier A, Caillard S, Cognard N, Geny B, Moulin B, Talha S. High-flow arteriovenous fistula and hemodynamic consequences at 1 year after kidney transplantation. Semin Dial 2021; 35:171-180. [PMID: 34726295 DOI: 10.1111/sdi.13028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/18/2021] [Accepted: 09/24/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION There are only scarce data regarding the cardiovascular impact of arteriovenous fistula after kidney transplantation depending on fistula flow. METHODS We performed a single-center, prospective, cohort study including 49 patients with a functional fistula at 1 year from kidney transplantation. Patients were convened for a clinical work-up, a biological analysis, a fistula's Doppler ultrasonography and an echocardiography. Main judgment criterion was comparison of echocardiography parameters between patients with relative (fistula flow >1 L/min and a fistula flow/cardiac output ratio >20%), absolute high-flow fistula (fistula flow >2 L/min) and normal-flow fistula. RESULTS High-flow fistula frequency was 69%. Significantly higher left ventricular end-diastolic and systolic diameters were observed in this group compared with the normal-flow fistula group (53 ± 6 vs. 48 ± 7 mm; p = 0.04 and 33 ± 6 vs. 28 ± 8 mm; p = 0.02) and between the absolute and relative high-flow fistula subgroups (56 ± 6 vs. 51 ± 6 mm; p = 0.009 and 35 ± 6 vs. 31 ± 5 mm; p = 0.01). The study showed no other significant differences. CONCLUSIONS This study showed a significantly higher but not pathological left ventricular end-diastolic and systolic diameters values in patients with high-flow fistula compared with patients with normal-flow fistula and between patients with respectively absolute and relative high-flow fistula.
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Affiliation(s)
- Nicolas Keller
- Department of Nephrology and Transplantation, Nouvel Hôpital Civil, Strasbourg, France
| | - Alexandra Monnier
- Medical Intensive Care Unit, Nouvel Hôpital Civil, Strasbourg, France
| | - Sophie Caillard
- Department of Nephrology and Transplantation, Nouvel Hôpital Civil, Strasbourg, France
| | - Noëlle Cognard
- Department of Nephrology and Transplantation, Nouvel Hôpital Civil, Strasbourg, France
| | - Bernard Geny
- Department of Physiology and Functional Explorations, Nouvel Hôpital Civil, Strasbourg, France
| | - Bruno Moulin
- Department of Nephrology and Transplantation, Nouvel Hôpital Civil, Strasbourg, France
| | - Samy Talha
- Department of Physiology and Functional Explorations, Nouvel Hôpital Civil, Strasbourg, France
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16
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Meyer‐Olesen CL, Lindhard K, Jørgensen NR, Goetze JP, Bomholt T, Jensen BL, Hansen D. Flow reduction of a high-flow arteriovenous fistula in a hemodialysis patient reveals changes in natriuretic and renin-angiotensin system hormones of relevance for kidney function. Physiol Rep 2021; 9:e14989. [PMID: 34605197 PMCID: PMC8488564 DOI: 10.14814/phy2.14989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/29/2021] [Accepted: 07/02/2021] [Indexed: 11/24/2022] Open
Abstract
Arteriovenous fistulas (AVFs) are iatrogenic vascular connections established to allow high-flow intravascular access for patients with chronic kidney disease requiring hemodialysis. The left-right flow shunt results in changes in extracellular fluid volume and blood pressure-controlling hormones that could affect the residual kidney function. We present a case where a female patient with a brachiocephalic AVF had a fistula flow of >4 L/min. To reduce the flow, a banding procedure was performed. The patient was examined prior to banding and 1 and 2 weeks thereafter. Banding resulted in a marked decrease in AVF flow from >4 to 1 L/min and was associated with reductions in N-terminal pro-brain natriuretic peptide of 51% and 67% at 1- and 2-weeks post-banding, respectively. Mid-regional pro-atrial natriuretic peptide concentrations were reduced post-banding by 17% after 1 week and 25% after 2 weeks. After 1 week, renin, angiotensin II, and aldosterone levels in plasma decreased transiently by 44%, 47%, and >86%, respectively, and returned to pre-banding levels after 2 weeks. Creatinine clearance tended to decrease while blood pressure and total body water increased 2 weeks after banding. This indicates that high-flow AVF is associated with increased natriuretic peptides and hormones of the renin-angiotensin-aldosterone system, that may balance each other regarding fluid retention and hypertension and support remaining kidney function.
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Affiliation(s)
| | - Kristine Lindhard
- Department of NephrologyCopenhagen University Hospital ‐ Herlev and GentofteCopenhagenDenmark
| | - Niklas R. Jørgensen
- Department of Clinical BiochemistryCopenhagen University Hospital ‐ RigshospitaletCopenhagenDenmark
- Department of Clinical MedicineUniversity of CopenhagenCopenhagenDenmark
| | - Jens P. Goetze
- Department of Clinical BiochemistryCopenhagen University Hospital ‐ RigshospitaletCopenhagenDenmark
| | - Tobias Bomholt
- Department of NephrologyCopenhagen University Hospital ‐ RigshospitaletCopenhagenDenmark
| | - Boye L. Jensen
- Department of Cardiovascular and Renal ResearchUniversity of Southern DenmarkDenmark
| | - Ditte Hansen
- Department of NephrologyCopenhagen University Hospital ‐ Herlev and GentofteCopenhagenDenmark
- Department of Clinical MedicineUniversity of CopenhagenCopenhagenDenmark
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17
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Interrogating the haemodynamic effects of haemodialysis arteriovenous fistula on cardiac structure and function. Sci Rep 2021; 11:18102. [PMID: 34518583 PMCID: PMC8437985 DOI: 10.1038/s41598-021-97625-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/25/2021] [Indexed: 11/08/2022] Open
Abstract
Arteriovenous fistula (AVF) is the preferred type of vascular access for maintenance haemodialysis but it may contribute to maladaptive cardiovascular remodelling. We studied the effect of AVF creation on cardiac structure and function in patients with chronic kidney disease (CKD). In this prospective cohort study patients with CKD listed for first AVF creation underwent cardiac magnetic resonance (CMR) imaging at baseline and at 6 weeks. All participants had ultrasound measurements of fistula blood flow at 6 weeks. The primary outcome was the change in left ventricular (LV) mass. Secondary outcomes included changes in LV volumes, LV ejection fraction, cardiac output, LV global longitudinal strain and N-terminal-pro B-type natriuretic peptide (NT-proBNP). A total of 55 participants were enrolled, of whom 40 (mean age 59 years) had AVF creation and completed both scans. On the second CMR scan, a mean increase of 7.4 g (95% CI 1.1-13.7, p = 0.02) was observed in LV mass. Significant increases in LV end-diastolic volumes (p = 0.04) and cardiac output (p = 0.02) were also seen after AVF creation. No significant changes were observed in LV end-systolic volumes, LV ejection fraction, NT-proBNP and LV global longitudinal strain. In participants with fistula blood flows ≥ 600 mL/min (n = 22) the mean increase in LV mass was 15.5 g (95% CI 7.3-23.8) compared with a small decrease of 2.5 g (95% CI - 10.6 to 5.6) in participants with blood flows < 600 mL/min (n = 18). Creation of AVF for haemodialysis resulted in a significant increase of LV myocardial mass within weeks after surgery, which was proportional to the fistula flow.
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18
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Letachowicz K, Bardowska K, Królicki T, Kamińska D, Banasik M, Zajdel K, Mazanowska O, Madziarska K, Janczak D, Krajewska M. The impact of location and patency of the arteriovenous fistula on quality of life of kidney transplant recipients. Ren Fail 2021; 43:113-122. [PMID: 33397180 PMCID: PMC7801108 DOI: 10.1080/0886022x.2020.1865171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background Arteriovenous fistulae (AVFs) may remain patent after kidney transplantation (KTx), contributing to maladaptive cardiac remodeling. The flow in AVFs is associated with the diameter of its vessels and thus with the AVF location. The main objective of this study is to assess the influence of AVF location and its patency on the self-reported quality of life (QOL) of kidney transplant recipients (KTRs) with past history of hemodialysis. Methods To gain clinical data, during a scheduled visit, 353 KTRs were asked to fill out an anonymous questionnaire. From this group, 284 respondents were found eligible for analysis. The outcome was defined as prevalence of symptoms and health status, measured with the Left Ventricular Dysfunction-36 (LVD-36) Questionnaire in symptomatic patients. Results The hemodialysis patients (n = 243) were divided into two groups according to AVF location, i.e., DAVF – distally located AVF – (n = 174) and PAVF – proximally located AVF – (n = 69). The proportion of patients with heart failure (HF) was higher in PAVF group (24% vs. 12%, p = 0.0482). In the multivariable regression, PAVF, serum creatinine levels, and the presence of HF or coronary artery disease (CAD) remained independent predictors of lower functional capacity. Among patients with heart disease, the presence of active AVF was independently associated with worse functional outcome (higher LVD-36 scores). Conclusions The influence of persistent PAVF in KTRs seems to be unfavorable, especially when coexisting with CAD or HF. Abbreviations: AVF arteriovenous fistula; BMI body mass index; CAD coronary artery disease; D-AVF distally-located arteriovenous fistula; EC exercise capacity; HD hemodialysis; HF heart failure; KTx kidney transplantation; KTR kidney transplant recipient; LVD-36 Left Ventricle Disfunction – 36; LVEF left ventricle ejection fraction; LVH left ventricle hypertrophy; NYHA New York Heart Association; P-AVF proximally located arteriovenous fistula; PD peritoneal dialysis; PRO patient-reported outcomes; QOL quality of life.
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Affiliation(s)
- Krzysztof Letachowicz
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
| | | | - Tomasz Królicki
- Faculty of Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Dorota Kamińska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Mirosław Banasik
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Karolina Zajdel
- Faculty of Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Oktawia Mazanowska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Katarzyna Madziarska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Dariusz Janczak
- Department of Vascular, General and Transplantation Surgery, Wroclaw Medical University, Wroclaw, Poland
| | - Magdalena Krajewska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
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19
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Abstract
Objective Arteriovenous fistulae (AVF) placed for hemodialysis have high flow rates that can stimulate left ventricular (LV) hypertrophy. LV hypertrophy generally portends poor cardiac outcomes, yet clinical studies point to superior cardiac-specific outcomes for patients with AVF when compared with other dialysis modalities. We hypothesize that AVF induce physiologic cardiac hypertrophy with cardioprotective features. Methods We treated 9- to 11-week-old C57Bl/6 male and female mice with sham laparotomy or an aortocaval fistula via a 25G needle. Cardiac chamber size and function were assessed with serial echocardiography, and cardiac computed tomography angiography. Hearts were harvested at 5 weeks postoperatively, and the collagen content was assessed with Masson's trichrome. Bulk messenger RNA sequencing was performed from LV of sham and AVF mice at 10 days. Differentially expressed genes were analyzed using Ingenuity Pathway Analysis (Qiagen) to identify affected pathways and predict downstream biological effects. Results Mice with AVF had similar body weight and wet lung mass, but increased cardiac mass compared with sham-operated mice. AVF increased cardiac output while preserving LV systolic and diastolic function, as well as indices of right heart function; all four cardiac chambers were enlarged, with a slight decrement in the relative LV wall thickness. Histology showed preserved collagen density within each of the four chambers without areas of fibrosis. RNA sequencing captured 19 384 genes, of which 857 were significantly differentially expressed, including transcripts from extracellular matrix-related genes, ion channels, metabolism, and cardiac fetal genes. The top upstream regulatory molecules predicted include activation of angiogenic (Vegf, Akt1), procardiomyocyte survival (Hgf, Foxm1, Erbb2, Lin9, Areg), and inflammation-related (CSF2, Tgfb1, TNF, Ifng, Ccr2, IL6) genes, as well as the inactivation of cardiomyocyte antiproliferative factors (Cdkn1a, FoxO3, α-catenin). The predicted downstream effects include a decrease in heart damage, and increased arrhythmia, angiogenesis, and cardiogenesis. There were no significant sex-dependent differences in the AVF-stimulated cardiac adaptation. Conclusions AVF stimulate adaptive cardiac hypertrophy in wild-type mice without heart failure or pathologic fibrosis. Transcriptional correlates suggest AVF-induced cardiac remodeling has some cardioprotective, although also arrhythmogenic features. (JVS–Vascular Science 2021;2:110-28.) Clinical Relevance Arteriovenous fistulae (AVF) are commonly used as access for hemodialysis in patients with end-stage renal disease. AVF induce a high-output state that is associated with long-term structural cardiac remodeling, including left ventricle hypertrophy, but this element has uncertain clinical significance. Although left ventricle hypertrophy has traditionally been associated with an increased risk of cardiovascular disease, clinical studies have suggested that cardiac-specific outcomes of patients with end-stage renal disease were better with AVF compared with other dialysis modalities. This study uses a mouse model of AVF to study the structural, functional, and molecular correlates of AVF-induced cardiac remodeling. It finds that AVF causes an adaptive cardiac hypertrophy without functional decline or fibrosis. Transcriptional correlates suggest an electrical remodeling and the upregulation of proangiogenic, procardiogenic, and prosurvival factors, implying that AVF-induced cardiac hypertrophy is potentially cardioprotective, but also arrhythmogenic.
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20
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Yadav R, Gerrickens MWM, van Kuijk SMJ, Vaes RHD, Snoeijs MGJ, Scheltinga MRM. Access flow volume (Qa) and survival in a hemodialysis population: An analysis of 5208 Qa measurements over a 9-year period. Nephrol Dial Transplant 2021; 37:1751-1757. [PMID: 34383950 DOI: 10.1093/ndt/gfab242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Aim of the study was to determine associations between characteristics of arteriovenous access (AVA) access flow volume (Qa, mL/min) and four year freedom from cardiovascular mortality (4yr-CVM) in hemodialysis (HD) patients. METHODS HD patients who received a primary AVA between January 2010 and December 2017 in one center were analyzed. Initial Qa was defined as the first Qa value obtained in a well-functioning AVA by a two-needle dilution technique. Actual Qa was defined as access flow at a random point of time. Changes in actual Qa were expressed per 3-month periods. CVM was assessed according to the ERA-EDTA classification. The optimal cut-off point for initial Qa was identified by a receiver operating characteristic curve. A joint modelling statistical technique determined longitudinal associations between Qa characteristics and 4yr-CVM. RESULTS A total of 5208 Qa measurements (165 patients, male n = 103; age 70±12 years, autologous AVA n = 146, graft n = 19) were analyzed. During follow-up (Dec 2010-Jan 2018, median 36 months), 79 patients (48%) died. An initial Qa < 900 mL/min was associated with an increased 4y-CVM risk (HR: 4.05; 95% CI [1.94-8.43], P<0.001). After 4 years, freedom from CVM was 34% lower in patients with a Qa < 900 mL/min (53 ±7% vs. Qa ≥ 900 mL/min: 87 ±4%, P <0.001). An association between increases in actual Qa over 3-month periods and mortality was found (HR: 4.48 per 100mL/min, 95% CI [1.44-13.97], P =0.010) indicating that patients demonstrating increasing Qa were more likely to die. By contrast, actual Qa per se was not related to survival. CONCLUSIONS Studying novel arteriovenous access Qa characteristics may contribute to understanding excess CVM in HD patients.
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Affiliation(s)
- Reshabh Yadav
- Department of Surgery, Máxima MC, Veldhoven, The Netherlands
| | | | - Sander M J van Kuijk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Roel H D Vaes
- Department of Surgery, Máxima MC, Veldhoven, The Netherlands
| | - Maarten G J Snoeijs
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
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21
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Pamporaki C, Prejbisz A, Małecki R, Pistrosch F, Peitzsch M, Bishoff S, Mueller P, Meyer I, Reimann D, Hanus K, Januszewicz A, Bornstein SR, Parmentier S, Kunath C, Lenders JWM, Eisenhofer G, Passauer J. Optimized procedures for testing plasma metanephrines in patients on hemodialysis. Sci Rep 2021; 11:14706. [PMID: 34282182 PMCID: PMC8290036 DOI: 10.1038/s41598-021-94104-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/05/2021] [Indexed: 11/15/2022] Open
Abstract
Diagnosis of pheochromocytomas and paragangliomas in patients receiving hemodialysis is troublesome. The aim of the study was to establish optimal conditions for blood sampling for mass spectrometric measurements of normetanephrine, metanephrine and 3-methoxytyramine in patients on hemodialysis and specific reference intervals for plasma metanephrines under the most optimal sampling conditions. Blood was sampled before and near the end of dialysis, including different sampling sites in 170 patients on hemodialysis. Plasma normetanephrine concentrations were lower (P < 0.0001) and metanephrine concentrations higher (P < 0.0001) in shunt than in venous blood, with no differences for 3-methoxytyramine. Normetanephrine, metanephrine and 3-methoxytyramine concentrations in shunt and venous blood were lower (P < 0.0001) near the end than before hemodialysis. Upper cut-offs for normetanephrine were 34% lower when the blood was drawn from the shunt and near the end of hemodialysis compared to blood drawn before hemodialysis. This study establishes optimal sampling conditions using blood from the dialysis shunt near the end of hemodialysis with optimal reference intervals for plasma metanephrines for the diagnosis of pheochromocytomas/paragangliomas among patients on hemodialysis.
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Affiliation(s)
- Christina Pamporaki
- Department of Medicine ΙΙI, University Hospital Carl Gustav Carus at the TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany.
| | | | - Robert Małecki
- Department of Nephrology, Centre of Uronephrology, Międzylesie Clinical Hospital, Warsaw, Poland
| | | | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus at the TU Dresden, Dresden, Germany
| | | | | | - Iris Meyer
- Dialysis Center Heidenau, Heidenau, Germany
| | - Doreen Reimann
- Kidney/Hypertension/Rheumatology Center, Dresden, Germany
| | | | | | - Stefan R Bornstein
- Department of Medicine ΙΙI, University Hospital Carl Gustav Carus at the TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Simon Parmentier
- Department of Medicine ΙΙI, University Hospital Carl Gustav Carus at the TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Carola Kunath
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus at the TU Dresden, Dresden, Germany
| | - Jacques W M Lenders
- Department of Medicine ΙΙI, University Hospital Carl Gustav Carus at the TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany.,Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Graeme Eisenhofer
- Department of Medicine ΙΙI, University Hospital Carl Gustav Carus at the TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany.,Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus at the TU Dresden, Dresden, Germany
| | - Jens Passauer
- Department of Medicine ΙΙI, University Hospital Carl Gustav Carus at the TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
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22
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Hashimoto K, Kamijo Y, Harada M, Yamada Y, Kanno T, Kanno Y. Impact of a change in vascular access flow volume after percutaneous transluminal angioplasty on cardiac function. Sci Prog 2021; 104:368504211031097. [PMID: 34281440 PMCID: PMC10450780 DOI: 10.1177/00368504211031097] [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] [Indexed: 11/16/2022]
Abstract
Vascular access (VA) is necessary for patients on hemodialysis, and percutaneous transluminal angioplasty (PTA) is a useful treatment for maintaining VA function. PTA immediately increases the VA flow volume, which can affect cardiac function. We investigated the relationship between changes in VA flow volume and cardiac function in patients who underwent PTA. This was a single-center retrospective observational study, including patients who underwent PTA between June 2016 and August 2016. VA flow volume and cardiac function were measured by sonography before and 1 h after PTA. This study included 50 PTA procedures in 50 cases. PTA significantly increased the median VA flow volume from 445 (range, 150-1229) to 725 (350-1268) mL/min. Although the ejection fraction and diameter of the inferior vena cava were unchanged, the cardiac output (CO) and cardiac index increased significantly in most cases. Surprisingly, the CO was decreased in 18% of cases despite the increased VA flow volume. In this atypical group, a high CO before PTA was found to be a significant factor for the decrease in CO by PTA. In most cases, both VA flow volume and CO were increased by PTA, whereas in some cases, the CO was decreased despite an increase in VA flow volume. This atypical phenomenon may be due to the insufficient adaptive response in the peripheral artery and heart and could predict risks for future cardiac events. Therefore, it is important that such patients are carefully followed up on.
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Affiliation(s)
- Koji Hashimoto
- Department of Nephrology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yuji Kamijo
- Department of Nephrology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Makoto Harada
- Department of Nephrology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yosuke Yamada
- Department of Nephrology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Taro Kanno
- Kanno Dialysis and Vascular Access Clinic, Matsumoto, Japan
| | - Yutaka Kanno
- Kanno Dialysis and Vascular Access Clinic, Matsumoto, Japan
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Salehi T, Montarello NJ, Juneja N, Stokes MB, Scherer DJ, Williams KF, King D, Macaulay E, Russell CH, Olakkengil SA, Carroll RP, Faull RJ, Teo KS, McDonald SP, Worthley MI, Coates PT, Rao NN. Long-Term Impact of Arteriovenous Fistula Ligation on Cardiac Structure and Function in Kidney Transplant Recipients: A 5-Year Follow-Up Observational Cohort Study. KIDNEY360 2021; 2:1141-1147. [PMID: 35368362 PMCID: PMC8786094 DOI: 10.34067/kid.0000692021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/06/2021] [Indexed: 02/04/2023]
Abstract
Background The long-term effects of arteriovenous fistula (AVF) ligation on cardiovascular structure following kidney transplantation remain uncertain. A prospective randomized, controlled trial (RCT) examined the effect of AVF ligation at 6 months on cardiovascular magnetic resonance imaging (CMR)-derived parameters in 27 kidney transplant recipients compared with 27 controls. A mean decrease in left ventricular mass (LVM) of 22.1 g (95% CI, 15.0 to 29.1) was observed compared with an increase of 1.2 g (95% CI, -4.8 to 7.2) in the control group (P<0.001). We conducted a long-term follow-up observational cohort study in the treated cohort to determine the evolution of CMR-derived parameters compared with those documented at 6 months post-AVF ligation. Methods We performed CMR at long-term follow-up in the AVF ligation observational cohort from our original RCT published in 2019. Results were compared with CMR at 6 months postintervention. The coprimary end point was the change in CMR-derived LVM and LVM index at long-term follow-up from imaging at 6 months postindex procedure. Results At a median of 5.1 years (interquartile range, 4.7-5.5 years), 17 patients in the AVF ligation group were studied with repeat CMR with a median duration to follow-up imaging of 5.1 years (IQR, 4.7-5.5 years). Statistically significant further reductions in LVM (-17.6±23.0 g, P=0.006) and LVM index (-10.0±13.0 g/m2, P=0.006) were documented. Conclusions The benefit of AVF ligation on LVM and LVM index regression appears to persist long term. This has the potential to lead to a significant reduction in cardiovascular mortality.
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Affiliation(s)
- Tania Salehi
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia,Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Nicholas J. Montarello
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia,Department of Cardiology, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Nishant Juneja
- Department of Cardiology, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Michael B. Stokes
- Department of Cardiology, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Daniel J. Scherer
- Department of Cardiology, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Kerry F. Williams
- Department of Cardiology, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - David King
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia
| | - Ewan Macaulay
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia
| | - Christine H. Russell
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia
| | - Santosh A. Olakkengil
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia
| | - Robert P. Carroll
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia,Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Randall J. Faull
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia,Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Karen S.L. Teo
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia,Department of Cardiology, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Stephen P. McDonald
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia,Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Matthew I. Worthley
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia,Department of Cardiology, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Patrick T. Coates
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia,Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Nitesh N. Rao
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia,Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
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24
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Jaques DA, Davenport A. High-flow arteriovenous fistula is not associated with increased extracellular volume or right ventricular dysfunction in haemodialysis patients. Nephrol Dial Transplant 2021; 36:536-543. [PMID: 33011786 DOI: 10.1093/ndt/gfaa188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/27/2020] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND High-output congestive heart failure secondary to high-flow arteriovenous fistula (AVF) has been reported in haemodialysis (HD) patients. As high-flow AVF (HFA) would be expected to result in fluid retention, we conducted an observational study to characterize the relationship between AVF flow (Qa) and extracellular water (ECW) in HD patients. METHODS We measured Qa by ultrasound dilution in prevalent HD outpatients with an AVF in two dialysis centres. The ECW:total body water (TBW) ratio was measured both pre- and post-dialysis by multifrequency bioimpedance analysis. Transthoracic echocardiograms (TTEs) were performed as part of routine clinical management. RESULTS We included 140 patients, mean age 62.7 ± 15.7 years, 60.7% male, 47.9% diabetic and 22.9% with coronary revascularization. Mean Qa was 1339 ± 761 mL/min and 22 (15.7%) patients had HFA defined as Qa >2.0 L/min. Qa was positively associated with an upper arm AVF (P = 0.005), body mass index (P = 0.012) and N-terminal pro-brain natriuretic peptide (NT-proBNP) (P = 0.047) and negatively associated with diabetes (P < 0.001) and coronary revascularization (P = 0.005). The ECW:TBW ratio was positively associated with age (P < 0.001), Davies comorbidity index (P = 0.034), peripheral vascular disease (P = 0.030) and NT-proBNP (P = 0.002) and negatively associated with serum albumin (P < 0.001). Qa was not associated with the ECW:TBW ratio (P = 0.744). TTE parameters were not associated with Qa. CONCLUSIONS In our outpatient HD cohort, high AVF flow was not associated with ECW expansion, either pre- or post-dialysis when accounting for potential confounders. By controlling ECW, high access flow should not necessarily be perceived as a threat to cardiovascular physiology.
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Affiliation(s)
- David A Jaques
- Division of Nephrology, Geneva University Hospitals, Geneva, Switzerland.,UCL Department of Nephrology, Royal Free Hospital, University College London, London, UK
| | - Andrew Davenport
- UCL Department of Nephrology, Royal Free Hospital, University College London, London, UK
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25
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Cohen H, Stefanutti C. Current Approach to the Diagnosis and Treatment of Heterozygote and Homozygous FH Children and Adolescents. Curr Atheroscler Rep 2021; 23:30. [PMID: 33963467 PMCID: PMC8105241 DOI: 10.1007/s11883-021-00926-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
Abstract
Purpose of Review To elucidate the current approach of care in pediatric patients with familial hypercholesterolemia (FH). We sought an answer to the question whether the advances and major changes in lipid management are relevant and apply to children and adolescents. Recent Findings Latest research findings clearly demonstrate that lowering cholesterol levels at a young age prevents vascular atherosclerotic changes and decreases cardiovascular events in adulthood and emphasizes the importance of early detection and intervention in the pediatric FH patients group. Summary FH is a common genetic disease caused by mutations in genes associated with the metabolism of low-density lipoproteins (LDL). The hallmark of FH is elevated LDL cholesterol (LDL-C) levels from birth and premature atherosclerotic cardiovascular disease (ASCVD). Often FH is either undiagnosed or diagnosed with a considerable delay, leading to vascular atherosclerotic changes and cardiovascular disease. Prompt identification of FH subjects is essential, to initiate early preventive measures. Safe and efficient pharmacological agents are approved for use in children and adolescents. Statins are the first line of therapy, in combination of ezetimibe. Unfortunately, these drugs do not warrant the achievement of therapeutic target, especially in HoFH patient. In the latter, lipoprotein apheresis (LA), which has been shown to be safe and effective, is strongly recommended. Finally, the new drugs still under study will allow a multimodal customized treatment. Lowering cholesterol levels at a young age hinders vascular atherosclerotic changes decreasing cardiovascular events in adulthood. Therefore, early detection, diagnosis, and intervention in FH patients are priority objectives.
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Affiliation(s)
- Hofit Cohen
- The Bert W. Strassburger Lipid Center, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Claudia Stefanutti
- Department of Molecular Medicine, Lipid Clinic and Atherosclerosis Prevention Centre, Immunohematology and Transfusion Medicine, Regional Centre for Rare Diseases, Extracorporeal Therapeutic Techniques Unit – Severe Genetic Dyslipidemias, Umberto I Hospital, ‘Sapienza’ University of Rome, Rome, Italy
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26
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Translational Sciences in Cardiac Failure Secondary to Arteriovenous Fistula in Hemodialysis Patients. Ann Vasc Surg 2021; 74:431-449. [PMID: 33556504 DOI: 10.1016/j.avsg.2021.01.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/08/2020] [Accepted: 01/03/2021] [Indexed: 01/07/2023]
Abstract
High-output cardiac failure is a rare form of heart failure associated with the formation of arteriovenous fistula (AVF) in hemodialysis patients. The pathophysiology underlying the HOCF is complex and multifactorial. Presence of AVF can cause long term hemodynamic changes that ultimately lead to increased cardiac output and consequently cardiac failure. A number of risk factors have been associated with the development of HOCF post-AVF construction, including male sex, a proximally located AVF and a state of volume overload. Dysregulation of tissue inhibitor of matrix metalloproteinase 4, Sirtuin-1 and Sirtuin-3 gene expression have been associated with the development of heart failure. The differences observed between genders have been attributed to altered activity of the β-adrenoceptor system. Numerous biomarkers including cardiac troponin T and I, atrial natriuretic peptide, brain natriuretic peptide among others have shown both prognostic and diagnostic potential; however further research is needed to establish their utility in clinical practice for patients with AVF associated HOCF. In recent years risk stratification models have been developed to help identify patients at the highest risk of developing HOCF post AVF which could be revolutionary in its identification and management. Potential options for managing HOCF post-AVF include AVF ligation, banding and anastoplasty however these procedures are not without their own associated risks. In this review, we discuss the pathophysiology, risk stratification and management of patients with AVF associated HOCF.
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27
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Hahn Lundström U, Hedin U, Gasparini A, Caskey FJ, Carrero JJ, Evans M. Arteriovenous access placement and renal function decline. Nephrol Dial Transplant 2021; 36:275-280. [PMID: 31665436 DOI: 10.1093/ndt/gfz221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/02/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND There is controversial evidence on whether arteriovenous access (AVA) placement may protect renal function and hence should be considered in the timing of access placement. This study aimed to investigate the association between AVA placement and estimated glomerular filtration rate (eGFR) decline as compared with the placement of a peritoneal dialysis catheter (PDC) at a similar time point. METHODS We studied a cohort of 744 pre-dialysis patients in Stockholm, Sweden, who underwent surgery for AVA or PDC between 2006 and 2012. Data on comorbidity, medication and laboratory measures were collected 100 days before and after surgery. Patients were followed until dialysis start, death or 100 days, whichever came first. The primary outcome was difference in eGFR decline after AVA surgery compared with PDC. Decline in eGFR was estimated through linear mixed models with random intercept and slope, before and after surgery. RESULTS There were 435 AVA and 309 PDC patients. The AVA patients had higher eGFR (8.1 mL/min/1.73 m2 versus 7.0 mL/min/1.73 m2) and less rapid eGFR decline before surgery (-5.6 mL/min/1.73 m2/year compared with -6.7 mL/min/1.73 m2/year for PDC). We found no difference in eGFR decline after surgery in AVA patients compared with PDC patients [AVA progressed 0.26 (95% confidence interval -0.88 to 0.35) mL/min/1.73 m2/year faster after surgery compared with PDC]. CONCLUSIONS There was no significant difference in eGFR decline after placement of an AVA compared with a PDC. Both forms of access were associated with reduced eGFR decline in our population. The need for dialysis remains the main determinant for timing of access surgery.
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Affiliation(s)
| | - Ulf Hedin
- Karolinska Institutet, Department of Molecular Medicine and Surgery, Stockholm, Sweden
| | | | - Fergus J Caskey
- Department of Population Health Sciences, University of Bristol, Bristol, UK
| | - Juan-Jesus Carrero
- Karolinska Institutet, Department of Medical Epidemiology and Biostatistics, Stockholm, Sweden
| | - Marie Evans
- Karolinska Institutet, Division of Renal Medicine, Clintec, Stockholm, Sweden
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28
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Henn D, Abu-Halima M, Kahraman M, Falkner F, Fischer KS, Barrera JA, Chen K, Gurtner GC, Keller A, Kneser U, Meese E, Schmidt VJ. A multivariable miRNA signature delineates the systemic hemodynamic impact of arteriovenous shunt placement in a pilot study. Sci Rep 2020; 10:21809. [PMID: 33311598 PMCID: PMC7733519 DOI: 10.1038/s41598-020-78905-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 11/27/2020] [Indexed: 02/08/2023] Open
Abstract
Arteriovenous (AV) fistulas for hemodialysis can lead to cardiac volume loading and increased serum brain natriuretic peptide (BNP) levels. Whether short-term AV loop placement in patients undergoing microsurgery has an impact on cardiac biomarkers and circulating microRNAs (miRNAs), potentially indicating an increased hemodynamic risk, remains elusive. Fifteen patients underwent AV loop placement with delayed free flap anastomosis for microsurgical reconstructions of lower extremity soft-tissue defects. N-terminal pro-BNP (NT-proBNP), copeptin (CT-proAVP), and miRNA expression profiles were determined in the peripheral blood before and after AV loop placement. MiRNA expression in the blood was correlated with miRNA expression from AV loop vascular tissue. Serum NT-proBNP and copeptin levels exceeded the upper reference limit after AV loop placement, with an especially strong NT-proBNP increase in patients with preexistent cardiac diseases. A miRNA signature of 4 up-regulated (miR-3198, miR-3127-5p, miR-1305, miR-1288-3p) and 2 down-regulated miRNAs (miR30a-5p, miR-145-5p) which are related to cardiovascular physiology, showed a significant systemic deregulation in blood and venous tissue after AV loop placement. AV loop placement causes serum elevations of NT-proBNP, copeptin as well as specific circulating miRNAs, indicating a potentially increased hemodynamic risk for patients with cardiovascular comorbidities, if free flap anastomosis is delayed.
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Affiliation(s)
- Dominic Henn
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, 257 Campus Dr. West, Stanford, CA, 94305, USA. .,BG Trauma Center Ludwigshafen, Heidelberg University, Ludwigshafen, Germany.
| | | | - Mustafa Kahraman
- Institute for Clinical Bioinformatics, Saarland University, Saarbrücken, Germany
| | - Florian Falkner
- BG Trauma Center Ludwigshafen, Heidelberg University, Ludwigshafen, Germany
| | | | - Janos A Barrera
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, 257 Campus Dr. West, Stanford, CA, 94305, USA
| | - Kellen Chen
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, 257 Campus Dr. West, Stanford, CA, 94305, USA
| | - Geoffrey C Gurtner
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, 257 Campus Dr. West, Stanford, CA, 94305, USA
| | - Andreas Keller
- Institute for Clinical Bioinformatics, Saarland University, Saarbrücken, Germany
| | - Ulrich Kneser
- BG Trauma Center Ludwigshafen, Heidelberg University, Ludwigshafen, Germany
| | - Eckart Meese
- Institute for Human Genetics, Saarland University, Homburg, Germany
| | - Volker J Schmidt
- BG Trauma Center Ludwigshafen, Heidelberg University, Ludwigshafen, Germany.,Department for Plastic and Breast Surgery, Zealand University Hospital Roskilde, Roskilde, Denmark
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29
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Methods to improve the yield of right heart catheterization in pulmonary hypertension. RESPIRATORY MEDICINE: X 2020. [DOI: 10.1016/j.yrmex.2020.100015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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30
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Do Natriuretic Peptide Measurements Provide Insights into Management of End-Stage Renal Disease Patients Undergoing Dialysis? Curr Heart Fail Rep 2020; 17:449-456. [PMID: 32939671 DOI: 10.1007/s11897-020-00488-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/08/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE OF REVIEW Impaired renal function may affect natriuretic peptide levels through a variety of factors and mechanisms, such as high prevalence of concomitant vascular and myocardial diseases, reduced clearance, increased risk of volume overload, and different types and solute removal techniques in the setting of dialysis. Nevertheless, accumulating evidence suggests that natriuretic peptide testing may provide insights into management of patients with chronic kidney disease (CKD) and end-stage kidney disease (ESRD) on dialysis, as they have been shown to be independently associated with morbidity and mortality. RECENT FINDINGS Rising natriuretic peptide levels over time may identify CKD patients more likely to approach ESRD and requiring dialysis initiation. Moreover, serial natriuretic peptide measurements may also be helpful in guiding fluid management in ESRD patients on dialysis. However, since patients with CKD usually have significantly higher and more variable baseline levels of natriuretic peptides than those without CKD, traditional cut-off values may not be applicable, and individualized trajectories should be applied and interpreted in the clinical context. Routine clinical use natriuretic peptide testing in the CKD and ESRD settings still needs to be refined and individualized, yet their diagnostic and prognostic values can provide valuable insights into clinical trajectories and potential treatment responses.
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31
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Wan Z, Mboya VN, Lai Q, Tu B, Zhou Y, Chen L, Chen B. Resolution of high-output cardiac failure secondary to high flow radiocephalic fistula by precision banding under ultrasound guidance: A case report. J Vasc Access 2020; 22:1008-1012. [PMID: 32830608 DOI: 10.1177/1129729820947858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The creation of dialysis shunt affects hemodynamic and cardiac function. High-output cardiac failure may occur if dialysis access volume flow is greater than 1500 to 2000 mls/min. To resolve symptoms of cardiac failure due to high flow dialysis shunt requires flow reduction procedure. We describe successful resolution of symptoms of heart failure due to excessive flow dialysis access by adopting precision banding, totally under vascular ultrasound guidance without angiography. CASE Hemodialysis adult patient uses the right arm radiocephalic fistula for 4 years. Recently, the patient presented with symptoms of high-output cardiac failure, including dyspnea, palpitations, fatigue, and orthopnea. The cardiac unit excluded all other causes of cardiac failure and referred the patient to our center for further evaluation. Ultrasonography revealed high blood volume flow measuring 3100 mls/min at brachial artery, marking high flow fistula and the underlying cause of cardiac failure. Juxta-anastomotic segment of fistula vein was identified; 3 mm diameter balloon was advanced to the juxta-anastomotic segment and maximally inflated. Two precision bandings were made on this segment, 1 to 2 cm apart with flow reduction to 691 mls/min. All steps of the procedure were done under ultrasound guidance without angiography. All symptoms were significantly alleviated immediately following the procedure. The patient was discharged after 48 h of monitoring. At 6 months, the patient was stable, no recurrence of high flow access, no signs or symptoms of cardiac failure, and the flow was 1119 mls/min. CONCLUSION This case demonstrates that the precision banding procedure is feasible under ultrasound guidance, and the procedure is safe and effective in resolution of cardiac failure due to high flow radiocephalic fistula.
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Affiliation(s)
- Ziming Wan
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Vincent N Mboya
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Qiquan Lai
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Bo Tu
- Ultrasonography Department, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Yu Zhou
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Ling Chen
- Ultrasonography Department, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Bo Chen
- Ultrasonography Department, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
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32
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The attitude of kidney transplant recipients towards elective arteriovenous fistula ligation. PLoS One 2020; 15:e0234931. [PMID: 32615582 PMCID: PMC7332306 DOI: 10.1371/journal.pone.0234931] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 06/04/2020] [Indexed: 12/31/2022] Open
Abstract
Background Arteriovenous fistulas (AVF) are a source of various complications. Among previously hemodialyzed kidney transplant recipients (KTxR), the AVF may persist over time. The patients’ decisions whether to ligate the functioning AVF may be prompted by many factors. Our knowledge of benefits concerning the procedure as well as patients' attitude towards it is scarce. Aim Evaluation of the patients’ opinion on the persistent AVF ligation after a successful kidney transplantation. Materials and methods An anonymous survey was carried out among 301 previously hemodialyzed KTxR. The patients were recruited during scheduled visits in the Transplantation Outpatient Unit. All subjects completed an anonymous questionnaire including questions about their attitude towards the matter in question. Results 69 patients (22.9%) have considered AVF closure. The most common causes for such attitude were esthetic reasons (n = 29) and concerns about heart health (n = 13). Among those 69 subjects, 18 have presented with symptomatic AVF due to multiple symptoms. Symptomatic AVFs were localized on the forearm in 14 out of 18 cases. As many as 116 (38.5%) cases have never wanted to ligate the AVF and 116 (38.5%) subjects did not have a clear opinion. In our study we report 158 (52.5%) cases of non-functioning AVFs. The main reason for the above was spontaneous AVF thrombosis (121 cases). Only 24 subjects reported to rely on the physician-provided information about the AVF management. Conclusions One fourth of KTRs have ever considered AVF ligation. There is a distinct need for educating patients on the possibilities of post-transplantation AVF management.
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Magnetti M, Leonardi G, Guarena C, Dolla C, Tarragoni R, Abbasciano I, Fop F, Tallia C, Giordano F, Verri A, Biancone L. Hemodialysis arteriovenous fistula ligation after renal transplantation: Impact on graft resistive index. J Vasc Access 2020; 22:129-134. [PMID: 32524867 DOI: 10.1177/1129729820927240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Kidney allograft resistive index (RI) is prognostic for graft and recipient survivals. Recipient hemodynamics could influence RI. In particular, dialysis arteriovenous fistula (AVF) has been involved in heart function changes, reversible after AVF ligation. Knowledge about AVF and RI is lacking. In this study, we prospectively evaluated RI changes after AVF ligation in kidney transplanted patients. METHODS We enrolled 22 stable transplanted patients. Mean RI was measured before AVF ligation (T0), 18 to 24 h (T1) and 6 months (T6) after surgery; mean blood pressure (mBP), heart rate (HR), serum creatinine (sCr), estimated glomerular filtration rate (eGFR), 24 h proteinuria (24 h-P), immunosuppressive drug blood levels (IS) and antihypertensive drugs were also recorded. RESULTS AVF ligation was performed 3.1 years (IQR: 2.1-3.8) after transplantation. Median AVF flow (Qa) was 1868 mL/min (IQR: 1538-2712) and 8 AVF were classified as high flow (Qa ≥ 2 L/min). At baseline, median sCr was 1.32 mg/dL (IQR: 1.04-1.76) and median eGFR was 57.1 mL/min. Median RI was 0.71 at T0, 0.69 at T1, 0.66 at T6. RI reduction at T1 and T6 was statistically significant (p < 0.05 and p < 0.001 respectively); in particular, 90.4% of patients had persistently improved values at T6. Furthermore, mBP increased while HR decreased. These changes were independent from sCr, 24 h-P, IS, antihypertensive drugs number, Qa and AVF type. CONCLUSIONS AVF ligation improves kidney allograft RI; it may reflect better kidney perfusion.
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Affiliation(s)
- Marica Magnetti
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
| | - Gianluca Leonardi
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
| | - Cesare Guarena
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
| | - Caterina Dolla
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
| | - Rita Tarragoni
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
| | - Isabella Abbasciano
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
| | - Fabrizio Fop
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
| | - Caterina Tallia
- S.C. Chirurgia Vascolare, AOU Città della Salute e della Scienza, Turin, Italy
| | - Federica Giordano
- S.C. Chirurgia Vascolare, AOU Città della Salute e della Scienza, Turin, Italy
| | - Aldo Verri
- S.C. Chirurgia Vascolare, AOU Città della Salute e della Scienza, Turin, Italy
| | - Luigi Biancone
- S.C. Nefrologia, Dialisi e Trapianto U, AOU Città della Salute e della Scienza, Turin, Italy
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Cardiac impact of arteriovenous fistulas: what tools to assess? Heart Vessels 2020; 35:1583-1593. [DOI: 10.1007/s00380-020-01630-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 05/22/2020] [Indexed: 01/18/2023]
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Jean G, Deleaval P, Chazot C. [Natriuretic peptides in dialysis: From theory to clinical practice]. Nephrol Ther 2020; 17:1-11. [PMID: 32409292 DOI: 10.1016/j.nephro.2019.08.003] [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: 07/23/2019] [Accepted: 08/25/2019] [Indexed: 10/24/2022]
Abstract
Cardiologists and emergency-wards physicians are used to check natriuretic peptides serum level, mainly B-type natriuretic peptide and N-terminal pro-Brain natriuretic peptide for acute cardiac failure diagnosis. Due to their accumulation in chronic kidney disease and their elimination by dialysis, natriuretic peptides sampling remains debatable in chronic kidney disease patients. In dialysis patients, high natriuretic peptides values are associated with mortality, left ventricular hypertrophy and cardiac failure. However, a single value cannot provide a reliable diagnosis. Our clinical practice is as follows: First, we prefer B-type natriuretic peptide to N-terminal pro-Brain natriuretic peptide because of its shorter half-life, with less impact of renal function and dialysis, making its interpretation easier in case of advanced chronic kidney disease or in dialysis patients; second, we define a reference value of B-type natriuretic peptide at dry weight from serial measurements; third, the B-type natriuretic peptide changes are interpreted according to extracellular fluid and cardiac status, but also from the arteriovenous fistula blood flow. In stable dialysis patients, B-type natriuretic peptide is sampled monthly and weekly in unstable patients. We illustrate our experience using clinical cases of overhydration, new cardiac disease onset, hypovolemia and arteriovenous fistula with high blood flow. Longitudinal follow-up of B-type natriuretic peptide is an important advance in dialysis patients in order to detect and treat extracellular fluid variations and cardiac disease status early, both important factors associated with hard outcomes.
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Affiliation(s)
- Guillaume Jean
- Service de néphrologie et dialyse, NephroCare Tassin-Charcot, 7, avenue du Maréchal-Foch, 69110 Sainte-Foy-les-Lyon, France.
| | - Patrik Deleaval
- Service de néphrologie et dialyse, NephroCare Tassin-Charcot, 7, avenue du Maréchal-Foch, 69110 Sainte-Foy-les-Lyon, France
| | - Charles Chazot
- Service de néphrologie et dialyse, NephroCare Tassin-Charcot, 7, avenue du Maréchal-Foch, 69110 Sainte-Foy-les-Lyon, France
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Choudhary N, Agarwal H, Ghoshal S, Uniyal M, Kumar A, Gupta A. Management of Complex Traumatic Renal Artery-Inferior Vena Cava Fistula: A Case Report and Review of the Literature. Vasc Endovascular Surg 2020; 54:449-454. [PMID: 32372719 DOI: 10.1177/1538574420920997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Renal artery-inferior vena cava (IVC) fistula is usually caused by penetrating injury to the back. However, it is a very rarely reported entity with only 20 cases reported in the literature. They may present acutely with hemodynamic instability or chronically as congestive heart failure. A thorough examination and adequate imaging are required to avoid missing such injuries. CASE PRESENTATION A 28-year-old gentleman presented after sustaining stab injury to the back. The stab had penetrated the renal artery and IVC, leading to arteriovenous fistula. He was managed surgically, as he went into hemorrhagic shock, with a successful outcome. The case is also unique as an accessory renal artery was also involved in the fistula. CONCLUSION Early identification and management of renal artery-IVC fistula is important to ensure a successful outcome. Such fistulas can be managed by either endovascular approach or surgical approach. The decision of approach depends on the level of expertise available and hemodynamic status of the patient.
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Affiliation(s)
- Narendra Choudhary
- Division of Trauma Surgery & Critical Care, Department of Surgical Disciplines, AIIMS, New Delhi, India
| | - Harshit Agarwal
- Division of Trauma Surgery & Critical Care, Department of Surgical Disciplines, AIIMS, New Delhi, India
| | - Soumya Ghoshal
- Division of Trauma Surgery & Critical Care, Department of Surgical Disciplines, AIIMS, New Delhi, India
| | - Madhur Uniyal
- Department of Trauma Surgery, AIIMS, Rishikesh, Uttarakhand, India
| | - Abhinav Kumar
- Division of Trauma Surgery & Critical Care, Department of Surgical Disciplines, AIIMS, New Delhi, India
| | - Amit Gupta
- Division of Trauma Surgery & Critical Care, Department of Surgical Disciplines, AIIMS, New Delhi, India
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Gu Q, Wang B, Zhao H, Wang W, Wang P, Deng Y. LncRNA promoted inflammatory response in ischemic heart failure through regulation of miR-455-3p/TRAF6 axis. Inflamm Res 2020; 69:667-681. [PMID: 32350569 DOI: 10.1007/s00011-020-01348-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/14/2020] [Accepted: 04/08/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Ischemic heart failure (IHF) is the most common cause of death globally. Growing evidence shows abnormal expression of long non-coding RNAs in heart failure patients. This study aims to investigate the effect of sex-determining region Y-box 2 (SOX2) overlapping transcript (SOX2-OT) on the regulation of the inflammatory response in ischemic heart failure. METHODS IHF rat and oxygen and glucose deprivation (OGD) cell models were established. qRT-PCR was employed to investigate the expression of SOX2-OT. ELISA, western blot and cell viability/apoptosis assays were performed to assess the effects of SOX2-OT. Online software program was used to identify miRNAs that target SOX2-OT, followed by validation using RNA pull-down. Potential targets of miRNAs were searched, and examined by immunoblotting, qRT-PCR and luciferase reporter assay. RESULTS SOX2-OT was up-regulated in IHF and OGD. Knockdown of SOX2-OT promoted cell proliferation, decreased apoptosis rate and cell oxidative damage, and ameliorated inflammatory response. SOX2-OT contains binding sites for miR-455-3p, miR-5586-3p and miR-1252-5p. RNA pull-down confirmed the binding ability between SOX2-OT and miR-455-3p. TRAF6 is a direct target of miR-455-3p. Moreover, the regulatory activity of SOX2-OT on inflammatory response was partially through its negative regulation of miR-455-3p, which directly regulates TRAF6. Down-regulation of SOX2-OT improved myocardial dysfunction in IHF rat. CONCLUSIONS Our results reveal that SOX2-OT may be a driver of IHF through repression of miR-455-3p, and miR-455-3p alleviates IHF by targeting TRAF6. Therefore, SOX2-OT/miR-455-3p/TRAF6 may be a potential target for advanced therapeutic strategy for IHF.
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Affiliation(s)
- Qianqian Gu
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China.
| | - Bin Wang
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, 061000, Hebei, China
| | - Hongying Zhao
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Wenjuan Wang
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Pengsheng Wang
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Yu Deng
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
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Practice of lipoprotein apheresis and short-term efficacy in children with homozygous familial hypercholesterolemia: Data from an international registry. Atherosclerosis 2020; 299:24-31. [DOI: 10.1016/j.atherosclerosis.2020.01.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 01/13/2020] [Accepted: 01/31/2020] [Indexed: 12/13/2022]
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40
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Zheng H, Bu S, Song Y, Wang M, Wu J, Chen J. To Ligate or Not to Ligate: A Meta-analysis of Cardiac Effects and Allograft Function following Arteriovenous Fistula Closure in Renal Transplant Recipients. Ann Vasc Surg 2020; 63:287-292. [DOI: 10.1016/j.avsg.2019.06.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 06/15/2019] [Accepted: 06/30/2019] [Indexed: 10/26/2022]
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Çakıcı EK, Çakıcı M, Gümüş F, Tan Kürklü TS, Yazılıtaş F, Örün UA, Bülbül M. Effects of hemodialysis access type on right heart geometry in adolescents. J Vasc Access 2020; 21:658-664. [PMID: 31920148 DOI: 10.1177/1129729819897454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION This study aimed to investigate the complication frequency and the changes in right heart geometry with different access types in the pediatric population. METHODS We included 32 consecutive patients aged between 10 and 19 and who underwent hemodialysis sessions via permanent hemodialysis catheter (nHC = 18) or arterio-venous fistula (nAVF = 14) between January 2013 and March 2018. We recorded and compared the complication frequency and the changes in echocardiography findings with different access types. FINDINGS Demographic data were similar in both groups. Number of new access creation (nHC = 15 vs nAVF = 1) and all complications (nHC = 19 vs nAVF = 6) were significantly higher in hemodialysis catheter group and the statistical analysis showed the superiority of arterio-venous fistula group in comparison of event-free survival (event-free patients; nAVF = 8 (57%), nHC = 3 (16%); p = 0.02). Control echocardiography showed impressive delta-change in right atrium diameter (p = 0.04), right ventricular end-diastolic volume (p = 0.004), right ventricular end-systolic volume (p < 0.001), and right ventricular free wall thickness (p = 0.009) in arterio-venous fistula group, but no significant difference between two groups in terms of delta-change of right ventricular ejection fraction (p = 0.35), fractional area change (p = 0.21), and tricuspid annular plane systolic excursion (p = 0.13) parameters. CONCLUSION Arterio-venous fistula has lower risk of complications, but overloading stress on right heart chambers triggers remodeling process and geometrical changes, which can be early pieces of evidence of delayed right heart dysfunction in pediatric hemodialysis patients.
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Affiliation(s)
- Evrim Kargın Çakıcı
- Department of Pediatric Nephrology and Rheumatology, Dr. Sami Ulus Gynecology Obstetrics and Child Health and Diseases Training and Research Hospital, Ankara, Turkey
| | - Mehmet Çakıcı
- Department of Cardiovascular Surgery, Ankara University School of Medicine, Ankara, Turkey
| | - Fatih Gümüş
- Department of Cardiovascular Surgery, Ankara University School of Medicine, Ankara, Turkey
| | | | - Fatma Yazılıtaş
- Department of Pediatric Nephrology and Rheumatology, Dr. Sami Ulus Gynecology Obstetrics and Child Health and Diseases Training and Research Hospital, Ankara, Turkey
| | - Utku Arman Örün
- Department of Pediatric Cardiology, Dr. Sami Ulus Gynecology Obstetrics and Child Health and Diseases Training and Research Hospital, Ankara, Turkey
| | - Mehmet Bülbül
- Department of Pediatric Nephrology and Rheumatology, Dr. Sami Ulus Gynecology Obstetrics and Child Health and Diseases Training and Research Hospital, Ankara, Turkey
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Kuemmerli C, Habrina D, Puchner S, Laminger F, Werzowa J, Roka S. Primary External Stenting of an Autogenous Brachial-Basilic Upper Arm Transposition. Ann Vasc Surg 2019; 65:288.e1-288.e4. [PMID: 31778764 DOI: 10.1016/j.avsg.2019.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 11/28/2022]
Abstract
High-volume shunt flow after arteriovenous fistula (AVF) creation for hemodialysis can cause high-output heart failure. We used the Frame™ (Vascular Graft Solutions Ltd., Tel Aviv, Israel) external support, a stent, to limit vein dilatation and consecutive high-volume shunt in a 62-old female who underwent brachial-basilic upper arm transposition. After maturation, the shunt was used for dialysis and showed a plateauing flow volume 3 months after the operation. This case illustrates the safety and feasibility of this intervention when performed during AVF formation.
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Affiliation(s)
| | - Dominik Habrina
- Surgery and Vascular Surgery, Hanusch Hospital, Vienna, Austria
| | - Stefan Puchner
- Surgery and Vascular Surgery, Hanusch Hospital, Vienna, Austria
| | - Felix Laminger
- Surgery and Vascular Surgery, Hanusch Hospital, Vienna, Austria
| | - Johannes Werzowa
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria
| | - Sebastian Roka
- Surgery and Vascular Surgery, Hanusch Hospital, Vienna, Austria.
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Airy M, Lenihan CR, Ding VY, Montez-Rath ME, Cheng J, Navaneethan SD, Wasse H, Winkelmayer WC. Association Between Type of Vascular Access Used in Hemodialysis Patients and Subsequent Kidney Transplant Outcomes. Kidney Med 2019; 1:383-390. [PMID: 32734218 PMCID: PMC7384366 DOI: 10.1016/j.xkme.2019.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RATIONALE & OBJECTIVE Vascular access type (arteriovenous fistula [AVF] vs arteriovenous graft [AVG] vs central venous catheter [CVC]) associates with clinical outcomes in patients with end-stage kidney disease undergoing hemodialysis. Whether a similar association exists with outcomes after kidney transplantation is unknown. We hypothesized that AVGs would associate with worse outcomes, perhaps owing to persistent subclinical inflammation. STUDY DESIGN Retrospective cohort study. SETTING & PARTICIPANTS Using US registry data merged with electronic health records of a large dialysis organization (2006-2011), we selected patients receiving a first-ever kidney transplant after undergoing more than 30 days of hemodialysis. EXPOSURE Hemodialysis access used during the patient's last pretransplantation hemodialysis session. OUTCOMES Patients were followed up from kidney transplantation for all-cause mortality, kidney allograft loss from any cause, and allograft loss not from death. ANALYTICAL APPROACH Time-to-event analysis including Kaplan-Meier plots and Cox proportional hazards regression estimated cause-specific HRs and 95% CIs. RESULTS Among 9,291 patients who underwent kidney transplantation between 2006 and 2011, a total of 65.3% used an AVF, 20.4% used an AVG, and 14.3% used a CVC for hemodialysis before transplantation. Multivariable regression models adjusted for demographic variables, comorbid conditions, transplant characteristics, and laboratory parameters identified no independent associations between vascular access type and all-cause mortality (HRAVG, 1.13 [95% CI, 0.97-1.33]; HRCVC, 1.00 [95% CI, 0.83-1.21]). Similarly, AVG and CVC use were not independently associated with all-cause allograft loss compared with AVF use (HRAVG, 1.13 [95% CI, 1.00-1.28]; HRCVC, 1.12 [95% CI, 0.96-1.29]). CVC use was associated with 30% higher risk for allograft loss from causes other than death compared with AVF use (HRCVC, 1.30 [95% CI, 1.06-1.57]), but AVGs were not (HRAVG, 1.17 [95% CI, 0.98-1.39]). LIMITATIONS Nonrandomized exposure leading to potential residual confounding. CONCLUSIONS No association was found for AVG use before kidney transplantation with mortality, all-cause allograft loss, and allograft loss from all causes other than death, compared with AVF use. The association of CVC use with allograft loss from causes other than death requires further investigation.
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Affiliation(s)
- Medha Airy
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Colin R. Lenihan
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Victoria Y. Ding
- Center for Biomedical Informatics Research, Stanford University School of Medicine, Palo Alto, CA
| | - Maria E. Montez-Rath
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Jizhong Cheng
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Sankar D. Navaneethan
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Haimanot Wasse
- Division of Nephrology, Department of Medicine, Rush University School of Medicine, Chicago, IL
| | - Wolfgang C. Winkelmayer
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX
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Gumus F, Saricaoglu MC. Assessment of right heart functions in the patients with arteriovenous fistula for hemodialysis access: Right ventricular free wall strain and tricuspid regurgitation jet velocity as the predictors of right heart failure. Vascular 2019; 28:96-103. [DOI: 10.1177/1708538119866616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objectives Previous studies have mostly focused on the left-sided cardiovascular changes, but right-sided cardiac changes and predictive factors have not been examined in advance following arteriovenous fistula (AVF) creation. We aimed to identify new parameters which contribute to the prediction of right heart failure (RHF) after AVF creation. Methods The study cohort comprised 81 patients who underwent AVF creation between January 2014 and April 2019 in our center. The study cohort was divided into the patients with RHF ( n = 15, 18.5%) and without RHF ( n = 66, 72.5%) following AVF creation. Results Mean age of cohort was 49.9 ± 14.7 years (range 23–66) and 39 (48.1%) were men. Approximately 74.07% (60 patients) were in New York Heart Association Class II and III profile preoperatively. Independent predictors for RHF following AVF were right ventricle longitudinal strain (RVLS) free wall <-19% [odds ratio (OR) 2.31, 95% CI 1.02–3.22], and tricuspid regurgitation jet velocity (TRJV) >2.5 m/s [odds ratio (OR) 5.68, 95% CI 1.21–4.38]. Receiver operating characteristic analysis was performed with a resulting area under the curve value of 0.86 (95% CI 0.55–0.89, p = 0.004) for RVLS free wall <-14.2% and 0.81 for TRJV >2.61 m/s (95% CI 0.55–0.89, p = 0.005) in predicting RHF following AVF. Conclusions RVLS free wall <-14.2% and TRJV >2.61 m/s were independent predictors of RHF following AVF creation. The patients at risk for having RHF following AVF creation or who may benefit from AVF should be identified with predictive parameters and prospective clinical studies.
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Affiliation(s)
- Fatih Gumus
- Department of Cardiovascular Surgery, Bartın State Hospital, Bartın, Turkey
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Rao NN, Stokes MB, Rajwani A, Ullah S, Williams K, King D, Macaulay E, Russell CH, Olakkengil S, Carroll RP, Faull RJ, Teo KS, McDonald SP, Worthley MI, Coates PT. Effects of Arteriovenous Fistula Ligation on Cardiac Structure and Function in Kidney Transplant Recipients. Circulation 2019; 139:2809-2818. [DOI: 10.1161/circulationaha.118.038505] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Nitesh N. Rao
- Adelaide Medical School, University of Adelaide, Australia (N.N.R., S.U., R.P.C., S.P.M., M.I.W., P.T.C.)
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
- Lyell McEwin Hospital, Northern Adelaide Local Health Network, Australia (N.N.R.)
| | - Michael B. Stokes
- Department of Cardiology (M.B.S., A.R., K.W., K.S.L.T., M.I.W.), Central Adelaide Local Health Network, Australia
| | - Adil Rajwani
- Department of Cardiology (M.B.S., A.R., K.W., K.S.L.T., M.I.W.), Central Adelaide Local Health Network, Australia
- Department of Cardiology, Royal Perth Hospital, Australia (A.R.)
| | - Shahid Ullah
- Adelaide Medical School, University of Adelaide, Australia (N.N.R., S.U., R.P.C., S.P.M., M.I.W., P.T.C.)
- Australia and New Zealand Dialysis and Transplant Registry 1 (S.U., S.P.M.), South Australian Health and Medical Research Institute, Adelaide
| | - Kerry Williams
- Department of Cardiology (M.B.S., A.R., K.W., K.S.L.T., M.I.W.), Central Adelaide Local Health Network, Australia
| | - David King
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
- Department of Vascular Surgery (D.K., E.M.), Central Adelaide Local Health Network, Australia
| | - Ewan Macaulay
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
- Department of Vascular Surgery (D.K., E.M.), Central Adelaide Local Health Network, Australia
| | - Christine H. Russell
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
| | - Santosh Olakkengil
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
| | - Robert P. Carroll
- Adelaide Medical School, University of Adelaide, Australia (N.N.R., S.U., R.P.C., S.P.M., M.I.W., P.T.C.)
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
| | - Randall J. Faull
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
| | - Karen S.L. Teo
- Department of Cardiology (M.B.S., A.R., K.W., K.S.L.T., M.I.W.), Central Adelaide Local Health Network, Australia
| | - Stephen P. McDonald
- Adelaide Medical School, University of Adelaide, Australia (N.N.R., S.U., R.P.C., S.P.M., M.I.W., P.T.C.)
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
- Australia and New Zealand Dialysis and Transplant Registry 1 (S.U., S.P.M.), South Australian Health and Medical Research Institute, Adelaide
| | - Matthew I. Worthley
- Adelaide Medical School, University of Adelaide, Australia (N.N.R., S.U., R.P.C., S.P.M., M.I.W., P.T.C.)
- Department of Cardiology (M.B.S., A.R., K.W., K.S.L.T., M.I.W.), Central Adelaide Local Health Network, Australia
- Heart Health Theme (M.I.W.), South Australian Health and Medical Research Institute, Adelaide
| | - P. Toby Coates
- Adelaide Medical School, University of Adelaide, Australia (N.N.R., S.U., R.P.C., S.P.M., M.I.W., P.T.C.)
- Central Northern Adelaide Renal and Transplantation Service (N.N.R., D.K., E.M., C.H.R., S.O., R.P.C., R.J.F., S.P.M., P.T.C.), Central Adelaide Local Health Network, Australia
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Tang CY, Zhu CP, Wang RP, Ye XQ, Chen XF, Feng WN, Li P. Effect of Blood Pump Flow and Arteriovenous Fistula Blood Flow on the Blood Pressure and Cardiac Function in Patients Undergoing Maintenance Hemodialysis. Ther Apher Dial 2019; 23:556-561. [PMID: 30950575 DOI: 10.1111/1744-9987.12809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/22/2019] [Accepted: 03/28/2019] [Indexed: 11/28/2022]
Abstract
The effect of blood pump flow rate on the cardiac functions of hemodialysis patients with arteriovenous fistula (AVF) is largely unknown. This study aimed to investigate if blood pump flow rate (Qb) and AVF access flow rate (Qa) can affect the cardiac function of Chinese hemodialysis patients. A total of 72 patients undergoing AVF hemodialysis were included from March 2010 to June 2014 and dichotomized into the high- and low-flow groups using the medians of Qb (220 mL/min) and Qa (1000 mL/min) as the cutoffs. The cardiac function parameters were measured by ultrasound dilution technique within the first (t + 30) and the last (t - 30) 30 min of dialysis. At t + 30, Qb-high group had significantly higher systolic blood pressure (SBP) and mean arterial pressure (MAP) than Qb-low group. At t - 30, Qb-high group had higher SBP, diastolic blood pressure (DBP), and MAP than Qb-low group. Qa-high group had higher SBP, MAP, cardiac output (CO), cardiac index (CI), central blood volume (CBV), and lower peripheral resistance than Qa-low group. Multiple linear regression showed that at t - 30, Qb was positively correlated with SBP and MAP. Qa was positively correlated with CO, CI, CBV, and PR but negatively correlated with heart rate. Although Qb > 220 mL/min and Qa >1000 mL/min would elevate some parameters, the means of SBP, DBP, MAP remain within the normal range, indicating that appropriate increase in blood pump flow rate has little effect on the cardiac function of hemodialysis patients.
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Affiliation(s)
- Chun-Yuan Tang
- Hemopurification Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chun-Ping Zhu
- Hemopurification Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Rao-Ping Wang
- Hemopurification Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Qing Ye
- Hemopurification Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Fan Chen
- Hemopurification Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wan-Na Feng
- Hemopurification Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ping Li
- Department of Microsurgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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47
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Luirink IK, Kuipers IM, Hutten BA, Planken RN, Backx AP, Groothoff JW, Wiegman A. Coronary computed tomography angiography and echocardiography in children with homozygous familial hypercholesterolemia. Atherosclerosis 2019; 285:87-92. [DOI: 10.1016/j.atherosclerosis.2019.04.219] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/28/2019] [Accepted: 04/10/2019] [Indexed: 10/27/2022]
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48
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Yen CC, Liu MY, Chen PW, Hung PH, Su TH, Hsu YH. Prehemodialysis arteriovenous access creation is associated with better cardiovascular outcomes in patients receiving hemodialysis: a population-based cohort study. PeerJ 2019; 7:e6680. [PMID: 30976467 PMCID: PMC6451437 DOI: 10.7717/peerj.6680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 02/21/2019] [Indexed: 11/20/2022] Open
Abstract
Background Cardiovascular (CV) disease contributes to nearly half of the mortalities in patients with end-stage renal disease. Patients who received prehemodialysis arteriovenous access (pre-HD AVA) creation had divergent CV outcomes. Methods We conducted a population-based cohort study by recruiting incident patients receiving HD from 2001 to 2012 from the Taiwan National Health Insurance Research Database. Patients’ characteristics, comorbidities, and medicines were analyzed. The primary outcome of interest was major adverse cardiovascular events (MACEs), defined as hospitalization due to acute myocardial infarction, stroke, or congestive heart failure (CHF) occurring within the first year of HD. Secondary outcomes included MACE-related mortality and all-cause mortality in the same follow-up period. Results The patients in the pre-HD AVA group were younger, had a lower burden of underlying diseases, were more likely to use erythropoiesis-stimulating agents but less likely to use renin–angiotensin–aldosterone system blockers. The patients with pre-HD AVA creation had a marginally lower rate of MACEs but a significant 35% lower rate of CHF hospitalization than those without creation (adjusted hazard ratio (HR) 0.65, 95% confidence interval (CI) [0.48–0.88]). In addition, the pre-HD AVA group exhibited an insignificantly lower rate of MACE-related mortality but a significantly 52% lower rate of all-cause mortality than the non-pre-HD AVA group (adjusted HR 0.48, 95% CI [0.39–0.59]). Sensitivity analyses obtained consistent results. Conclusions Pre-HD AVA creation is associated with a lower rate of CHF hospitalization and overall death in the first year of dialysis.
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Affiliation(s)
- Cheng-Chieh Yen
- Division of Nephrology, Department of Internal Medicine, Ditmansion Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan
| | - Mei-Yin Liu
- Health Center, Municipal Jingliau Junior High School, Tainan City, Taiwan
| | - Po-Wei Chen
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
| | - Peir-Haur Hung
- Division of Nephrology, Department of Internal Medicine, Ditmansion Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan
| | - Tse-Hsuan Su
- Department of Emergency Medicine, Chang Gung Memorial Hospital Linkou, Taoyuan City, Taiwan
| | - Yueh-Han Hsu
- Division of Nephrology, Department of Internal Medicine, Ditmansion Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City, Taiwan.,Department of Nursing, Min-Hwei College of Health Care Management, Tainan City, Taiwan
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49
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Maiolino G, de Leeuw PW, van Twist DJL, Barbiero G, Battistel M, Jennings GLR, Paolo Rossi G. Drug-Resistant Hypertension. Hypertension 2019; 73:920-925. [PMID: 30905196 DOI: 10.1161/hypertensionaha.118.12068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Giuseppe Maiolino
- From the Hypertension Unit, Department of Medicine (G.M., G.P.R.), University of Padua, Italy
| | - Peter W de Leeuw
- Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, the Netherlands (P.W.d.L.).,Department of Internal Medicine, Zuyderland Medical Centre, Sittard/Heerlen, the Netherlands (P.W.d.L., D.J.L.v.T.)
| | - Daan J L van Twist
- Department of Internal Medicine, Zuyderland Medical Centre, Sittard/Heerlen, the Netherlands (P.W.d.L., D.J.L.v.T.)
| | - Giulio Barbiero
- Department of Medicine, Institute of Radiology (G.B., M.B.), University of Padua, Italy
| | - Michele Battistel
- Department of Medicine, Institute of Radiology (G.B., M.B.), University of Padua, Italy
| | - Garry L R Jennings
- Sydney Health Partners, Sydney Medical School, University of Sydney, NSW, Australia (G.L.R.J.)
| | - Gian Paolo Rossi
- From the Hypertension Unit, Department of Medicine (G.M., G.P.R.), University of Padua, Italy
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50
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Scholz SS, Vukadinović D, Lauder L, Ewen S, Ukena C, Townsend RR, Wagenpfeil S, Böhm M, Mahfoud F. Effects of Arteriovenous Fistula on Blood Pressure in Patients With End-Stage Renal Disease: A Systematic Meta-Analysis. J Am Heart Assoc 2019; 8:e011183. [PMID: 30764686 PMCID: PMC6405662 DOI: 10.1161/jaha.118.011183] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/11/2019] [Indexed: 01/21/2023]
Abstract
Background Central arteriovenous fistula ( AVF ) creation is under investigation for treatment of severe hypertension. We evaluated the effects of AVF for initiation of hemodialysis on systolic, diastolic, and mean arterial blood pressure in patients with end-stage renal disease. Methods and Results Data search included PubMed, Web of Science, and the Cochrane Library. A systematic review and meta-analysis of peer-reviewed studies reporting the effects of the creation/ligation of an AVF on blood pressure in patients with end-stage renal disease was performed according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis), PRISMA -P (PRISMA for systematic review protocols), and ROBINS-I (Risk of Bias in Non-Randomized Studies) criteria by the Cochrane Bias Methods Group. All studies in which the results could have been biased by hemodialysis were excluded. A total of 14 trials including 412 patients with end-stage renal disease ( AVF creation, n=185; AVF ligation, n=227) fulfilled the criteria and were subsequently analyzed. Average blood pressure in patients with no/closed AVF was 140.5/77.6 mm Hg with a mean arterial blood pressure of 96.1 mm Hg. Following creation of AVF , systolic blood pressure significantly decreased by 8.7 mm Hg ( P<0.001), diastolic blood pressure by 5.9 mm Hg ( P<0.001), and mean arterial blood pressure by 6.6 mm Hg ( P=0.02), whereas after ligation systolic blood pressure increased by 5.2 mm Hg ( P=0.07), diastolic blood pressure by 3.8 mm Hg ( P=0.02), and mean arterial blood pressure by 3.7 mm Hg ( P=0.07) during short- to long-term follow-up. Conclusions Creation of AVF significantly decreases blood pressure in patients with end-stage renal disease, whereas blood pressure tends to increase after ligation. These findings illustrate the hemodynamic consequences of AVF which are under investigation for severe hypertension.
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Affiliation(s)
- Sean S. Scholz
- Klinik für Innere Medizin IIIKardiologie, Angiologie und Internistische IntensivmedizinSaarland University HospitalHomburg/SaarGermany
| | - Davor Vukadinović
- Klinik für Innere Medizin IIIKardiologie, Angiologie und Internistische IntensivmedizinSaarland University HospitalHomburg/SaarGermany
| | - Lucas Lauder
- Klinik für Innere Medizin IIIKardiologie, Angiologie und Internistische IntensivmedizinSaarland University HospitalHomburg/SaarGermany
| | - Sebastian Ewen
- Klinik für Innere Medizin IIIKardiologie, Angiologie und Internistische IntensivmedizinSaarland University HospitalHomburg/SaarGermany
| | - Christian Ukena
- Klinik für Innere Medizin IIIKardiologie, Angiologie und Internistische IntensivmedizinSaarland University HospitalHomburg/SaarGermany
| | - Raymond R. Townsend
- Perelman School of MedicineUniversity of Pennsylvania Medical CenterPhiladelphiaPA
| | - Stefan Wagenpfeil
- Institut für Medizinische BiometrieEpidemiologie und Medizinische Informatik (IMBEI)Saarland UniversityCampus Homburg/SaarGermany
| | - Michael Böhm
- Klinik für Innere Medizin IIIKardiologie, Angiologie und Internistische IntensivmedizinSaarland University HospitalHomburg/SaarGermany
| | - Felix Mahfoud
- Klinik für Innere Medizin IIIKardiologie, Angiologie und Internistische IntensivmedizinSaarland University HospitalHomburg/SaarGermany
- Institute for Medical Engineering and ScienceMassachusetts Institute of TechnologyCambridgeMA
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