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McIntyre CW. Update on Hemodialysis-Induced Multiorgan Ischemia: Brains and Beyond. J Am Soc Nephrol 2024; 35:653-664. [PMID: 38273436 PMCID: PMC11149050 DOI: 10.1681/asn.0000000000000299] [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: 06/30/2023] [Accepted: 12/17/2023] [Indexed: 01/27/2024] Open
Abstract
Hemodialysis is a life-saving treatment for patients with kidney failure. However, patients requiring hemodialysis have a 10-20 times higher risk of cardiovascular morbidity and mortality than that of the general population. Patients encounter complications such as episodic intradialytic hypotension, abnormal perfusion to critical organs (heart, brain, liver, and kidney), and damage to vulnerable vascular beds. Recurrent conventional hemodialysis exposes patients to multiple episodes of circulatory stress, exacerbating and being aggravated by microvascular endothelial dysfunction. This promulgates progressive injury that leads to irreversible multiorgan injury and the well-documented higher incidence of cardiovascular disease and premature death. This review aims to examine the underlying pathophysiology of hemodialysis-related vascular injury and consider a range of therapeutic approaches to improving outcomes set within this evolved rubric..
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Affiliation(s)
- Christopher W McIntyre
- Lilibeth Caberto Kidney Clinical Research Unit, Lawson Health Research Institute, London, Ontario, Canada, and Departments of Medicine, Medical Biophysics and Pediatrics, Western University, London, Ontario, Canada
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Khou V, De La Mata NL, Kelly PJ, Masson P, O'Lone E, Morton RL, Webster AC. Epidemiology of cardiovascular death in kidney failure: An Australian and New Zealand cohort study using data linkage. Nephrology (Carlton) 2022; 27:430-440. [PMID: 35001453 PMCID: PMC9306651 DOI: 10.1111/nep.14020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 12/27/2021] [Accepted: 01/02/2022] [Indexed: 12/29/2022]
Abstract
Aim Cardiovascular mortality risk evolves over the lifespan of kidney failure (KF), as patients develop comorbid disease and transition between treatment modalities. Absolute cardiovascular death rates would help inform clinical practice and health‐care provision, but are not well understood across a continuum of dialysis and transplant states. We aimed to characterize cardiovascular death across the natural history of KF using a lifespan approach. Methods We performed a population‐based cohort study of incident patients commencing kidney replacement therapy in Australia and New Zealand. Cardiovascular deaths were identified using data linkage to national death registers. We estimated the probability of death and kidney transplant using multi‐state models, and calculated rates of graft failure and cardiovascular death across demographic factors and comorbidities. Results Among 60 823 incident patients followed over 381 874 person‐years, 25% (8492) of deaths were from cardiovascular disease. At 15 years from treatment initiation, patients had a 15.2% probability of cardiovascular death without being transplanted, but only 2.3% probability of cardiovascular death post‐transplant. Females had a 3% lower probability of cardiovascular death at 15 years (15.3% vs. 18.6%) but 4% higher probability of non‐cardiovascular death (54.5% vs. 50.8%). Within the first year of dialysis, cardiovascular mortality peaked in the second month and showed little improvement across treatment era. Conclusion Despite improvements over time, cardiovascular death remains common in KF, particularly among the dialysis population and in the first few months of treatment. Multi‐state models can provide absolute measures of cardiovascular mortality across both dialysis and transplant states. In this population‐based cohort study using multi‐state models (alive without kidney transplant [KT], CV death without KT, non‐CV death without KT, alive after first KT, CV death after first KT and non‐CV death after first KT), the probability of CV death was higher in non‐KT than KT patients at 15 years from treatment. In patients on dialysis, CV mortality was highest from the second month after commencing dialysis and remained high thereafter. Thus, the use of multi‐state models provides helpful information on impacts of different treatments with respect to serious outcomes.
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Affiliation(s)
- Victor Khou
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Nicole L De La Mata
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Patrick J Kelly
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Philip Masson
- Centre for Nephrology, University College London, London, UK
| | - Emma O'Lone
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Rachael L Morton
- NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - Angela C Webster
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia.,NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia.,Centre for Renal and Transplant Research, Westmead Hospital, Sydney, Australia
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3
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Idrovo A, Pignatelli R, Loar R, Nieuwsma A, Geer J, Solomon C, Swartz S, Ghanayem N, Akcan-Arikan A, Srivaths P. Preserved Cerebral Oxygenation with Worsening Global Myocardial Strain during Pediatric Chronic Hemodialysis. J Am Soc Nephrol 2021; 32:2912-2919. [PMID: 34518280 PMCID: PMC8806109 DOI: 10.1681/asn.2021020193] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 08/03/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Cerebral and myocardial hypoperfusion occur during hemodialysis in adults. Pediatric patients receiving chronic hemodialysis have fewer cardiovascular risk factors, yet cardiovascular morbidity remains prominent. METHODS We conducted a prospective observational study of pediatric patients receiving chronic hemodialysis to investigate whether intermittent hemodialysis is associated with adverse end organ effects in the heart or with cerebral oxygenation (regional tissue oxyhemoglobin saturation [rSO2]). We assessed intradialytic cardiovascular function and rSO2 using noninvasive echocardiography to determine myocardial strain and continuous noninvasive near-infrared spectroscopy for rSO2. We measured changes in blood volume and measured central venous oxygen saturation (mCVO2) pre-, mid-, and post-hemodialysis. RESULTS The study included 15 patients (median age, 12 years; median hemodialysis vintage, 13.2 [9-24] months). Patients were asymptomatic. The rSO2 did not change during hemodialysis, whereas mCVO2 decreased significantly, from 73% to 64.8%. Global longitudinal strain of the myocardium worsened significantly by mid-hemodialysis and persisted post-hemodialysis. The ejection fraction remained normal. Lower systolic BP and faster blood volume change were associated with worsening myocardial strain; only blood volume change was significant in multivariate analysis (β-coefficient, -0.3; 95% confidence interval [CI], -0.38 to -0.21; P<0.001). Blood volume change was also associated with a significant decrease in mCVO2 (β-coefficient, 0.42; 95% CI, 0.07 to 0.76; P=0.001). Access, age, hemodialysis vintage, and ultrafiltration volume were not associated with worsening strain. CONCLUSIONS Unchanged rSO2 suggested that cerebral oxygenation was maintained during hemodialysis. However, despite maintained ejection fraction, intradialytic myocardial strain worsened in pediatric hemodialysis and was associated with blood volume change. The effect of hemodialysis on individual organ perfusion in pediatric versus adult patients receiving hemodialysis might differ.
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Affiliation(s)
- Alexandra Idrovo
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Ricardo Pignatelli
- Department of Pediatrics, Cardiology Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Robert Loar
- Department of Pediatrics, Cardiology Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Asela Nieuwsma
- Department of Pediatrics, Cardiology Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Jessica Geer
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Catharina Solomon
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Sarah Swartz
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Nancy Ghanayem
- Department of Pediatrics, Critical Care Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Ayse Akcan-Arikan
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas,Department of Pediatrics, Critical Care Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Poyyapakkam Srivaths
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
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Burlacu A, Genovesi S, Basile C, Ortiz A, Mitra S, Kirmizis D, Kanbay M, Davenport A, van der Sande F, Covic A. Coronary artery disease in dialysis patients: evidence synthesis, controversies and proposed management strategies. J Nephrol 2020; 34:39-51. [PMID: 32472526 DOI: 10.1007/s40620-020-00758-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/23/2020] [Indexed: 12/31/2022]
Abstract
Cardiovascular disease (CVD) remains the leading cause of morbidity and mortality among patients with end-stage renal disease (ESRD). Clustering of traditional atherosclerotic and non-traditional risk factors drive the excess rates of coronary and non-coronary CVD in this population. The incidence, severity and mortality of coronary artery disease (CAD) as well as the number of complications of its therapy is higher in dialysis patients than in non-chronic kidney disease patients. Given the lack of randomized clinical trial evidence in this population, current practice is informed by observational data with a significant potential for bias. Furthermore, guidelines lack any recommendation for these patients or extrapolate them from trials performed in non-dialysis patients. Patients with ESRD are more likely to be asymptomatic, posing a challenge to the correct identification of CAD, which is essential for appropriate risk stratification and management. This may lead to "therapeutic nihilism", which has been associated with worse outcomes. Here, the ERA-EDTA EUDIAL Working Group reviews the diagnostic work-up and therapy of chronic coronary syndromes, unstable angina/non-ST elevation and ST-elevation myocardial infarction in dialysis patients, outlining unclear issues and controversies, discussing recent evidence, and proposing management strategies. Indications of antiplatelet and anticoagulant therapies, percutaneous coronary intervention and coronary artery bypass grafting are discussed. The issue of the interaction between dialysis session and myocardial damage is also addressed.
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Affiliation(s)
- Alexandru Burlacu
- Department of Interventional Cardiology, Cardiovascular Diseases Institute, and 'Grigore T. Popa' University of Medicine, Iasi, Romania
| | - Simonetta Genovesi
- Nephrology Unit, San Gerardo Hospital, Monza, Italy, University of Milan-Bicocca, Milan, Italy
| | - Carlo Basile
- Division of Nephrology, Miulli General Hospital, Via Battisti 192, Acquaviva delle Fonti, 74121, Taranto, Italy. .,Associazione Nefrologica Gabriella Sebastio, Martina Franca, Italy.
| | - Alberto Ortiz
- FRIAT and REDINREN, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain
| | - Sandip Mitra
- Manchester Academy of Health Sciences Centre, Manchester University Hospitals Foundation Trust and University of Manchester, Oxford Road, Manchester, UK
| | | | - Mehmet Kanbay
- Department of Medicine, Division of Nephrology, Koc University School of Medicine, Istanbul, Turkey
| | - Andrew Davenport
- Division of Medicine, UCL Centre for Nephrology, Royal Free Hospital, University College London, London, UK
| | - Frank van der Sande
- Division of Nephrology, Department of Internal Medicine, University Hospital Maastricht, Maastricht, The Netherlands
| | - Adrian Covic
- Nephrology Clinic, Dialysis and Renal Transplant Center-'C.I. Parhon' University Hospital, and 'Grigore T. Popa' University of Medicine, Iasi, Romania.,The Academy of Romanian Scientists (AOSR), Bucharest, Romania
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Changes of cardiac functions after hemodialysis session in pediatric patients with end-stage renal disease: conventional echocardiography and two-dimensional speckle tracking study. Pediatr Nephrol 2020; 35:861-870. [PMID: 31925535 DOI: 10.1007/s00467-019-04460-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/31/2019] [Accepted: 12/17/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Although acute effects of hemodialysis (HD) on cardiac functions in end-stage renal disease (ESRD) have been studied frequently in adults, limited data are available in pediatric age. Therefore, this work elucidates the acute impact of HD on cardiac functions using conventional echocardiography and two-dimensional (2D) speckle tracking in ESRD pediatric patients. METHODS Between June 2018 and April 2019, 40 ESRD pediatric subjects on chronic HD were prospectively recruited. All patients were subjected to history taking and baseline laboratory tests. Anthropometric measures, heart rate, blood pressure, and bioimpedance were assessed before and after HD session. Moreover, conventional echocardiography including M.mode and Doppler parameters for valves, as well as left ventricle (LV) 2D speckle tracking were performed pre- and post-dialysis session. RESULTS The included patients mean age was 12.9 ± 2.9 years, and males were 24 (60%). Significant reductions in body weight and blood pressure were noted after sessions. Post-dialysis LV and left atrial diameters, as well as left atrium to aortic diameter ratio, were lower. Nevertheless, conventional echocardiography-derived LV ejection fraction (EF), and fractional shortening were not significantly changed. Doppler-derived E/A ratio of mitral and tricuspid valves were lower post-dialysis. Global longitudinal strain (GLS) for LV was significantly reduced after dialysis (- 20.31 ± 3.58%, - 17.17 ± 3.40% vs, P < 0.0001), and global circumferential strain (GCS) was lower post-dialysis in comparison to pre-dialysis (- 21.37 ± 6.46% vs - 17.74 ± 6.16%, P < 0.0001). The speckle tracking-derived EF was significantly lower post-dialysis (57.58 ± 6.94 vs 53.64 ± 10.72, P = 0.018). All myocardial segments longitudinal and circumferential strains decreased significantly after dialysis. CONCLUSIONS Post-hemodialysis significant decline in left ventricular EF as well as global and segmental strains can be detected in ESRD pediatric patients using 2D speckle tracking, despite the nonsignificant changes in systolic functions derived from conventional echocardiography. This is considered additional evidence of HD deleterious effect on myocardial functions, particularly in the pediatric age.
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Guler HS, Tulunay Kaya C, Kumru G, Kosku H, Ozyuncu N, Sengul S, Kutlay S. Acute stunning effect of hemodialysis on myocardial performance: A three-dimensional speckle tracking echocardiographic study. Artif Organs 2020; 44:1081-1089. [PMID: 32279336 DOI: 10.1111/aor.13698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/28/2020] [Accepted: 04/03/2020] [Indexed: 11/30/2022]
Abstract
The effects of acute changes during hemodialysis (HD) on the myocardium are not yet known. The invention of three-dimensional speckle tracking echocardiography (3DSTE) has offered clinicians a new method to assess the movements of ventricular segments simultaneously in three spatial directions. The aim of this study was to evaluate the effect of first weekly standard HD process on the left ventricle (LV) and right ventricle (RV) global and regional myocardial function in patients with normal left ventricle ejection fraction using 3DSTE-derived indices. Patients (n=38) receiving maintenance HD in our clinic who have no known cardiovascular disease are examined just before and after a HD session using 3DSTE. Demographic and comorbidity data, renal replacement treatment characteristics, and laboratory test results are recorded. 3DSTE analysis is performed to calculate the LV global longitudinal, circumferential area and radial peak systolic strain, as well as RV septum and free-wall longitudinal strain and fractional area change. Patients are aged 52.8 ± 13.6 years and 52.6% of them are male. Mean dialysis duration is 56 months. The LV strain values of the patients changed markedly before and after HD (GLS: -14.2 ± 5.2, -11.1 ± 4.6 [P < .001], GCS: -14.8 ± 4.2, -12.4 ± 5.28 [P < .009]; GRS: 41.5 ± 16, 33.3 ± 16.5 [P = .003]; AREA -24.7 ± 7.2, -20.1 ± 7.6 [P = .001], respectively). We could not demonstrate any improvement in RV strain values before or after HD. LV strain values are positively correlated with blood pressure variability during the dialysis sessions. LV function is preserved better after HD in patients on beta or calcium channel blocker therapy compared to those who do not use these agents (P < .001, P < .01, respectively). HD treatment results in deterioration in all LV strain directions but not in RV. Strain assessment may improve vascular risk stratification of patients on chronic HD.
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Affiliation(s)
- Hasan Selim Guler
- Department of Nephrology, Ankara University School of Medicine, Ankara, Turkey
| | - Cansin Tulunay Kaya
- Department of Cardiology, Ankara University School of Medicine, Ankara, Turkey
| | - Gizem Kumru
- Department of Nephrology, Ankara University School of Medicine, Ankara, Turkey
| | - Hakan Kosku
- Department of Nephrology, Ankara University School of Medicine, Ankara, Turkey
| | - Nil Ozyuncu
- Department of Cardiology, Ankara University School of Medicine, Ankara, Turkey
| | - Sule Sengul
- Department of Nephrology, Ankara University School of Medicine, Ankara, Turkey
| | - Sim Kutlay
- Department of Nephrology, Ankara University School of Medicine, Ankara, Turkey
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Loutradis C, Sarafidis PA, Papadopoulos CE, Papagianni A, Zoccali C. The Ebb and Flow of Echocardiographic Cardiac Function Parameters in Relationship to Hemodialysis Treatment in Patients with ESRD. J Am Soc Nephrol 2018; 29:1372-1381. [PMID: 29592914 PMCID: PMC5967760 DOI: 10.1681/asn.2017101102] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular disease is the leading cause of mortality in patients receiving hemodialysis. Cardiovascular events in these patients demonstrate a day-of-week pattern; i.e., they occur more commonly during the last day of the long interdialytic interval and the first session of the week. The hemodialysis process causes acute decreases in cardiac chamber size and pulmonary circulation loading and acute diastolic dysfunction, possibly through myocardial stunning and other non-myocardial-related mechanisms; systolic function, in contrast, is largely unchanged. During interdialytic intervals volume overload, acid-base, and electrolyte shifts, as well as arterial and myocardial wall changes, result in dilatation of right cardiac chambers and pulmonary circulation overload. Recent studies suggest that these alterations are more extended during the long interdialytic interval or the first dialysis session of the week and are associated with excess volume overload or removal, respectively, thus adding a mechanism for the day-of-week pattern of mortality in patients receiving hemodialysis. This review summarizes the existing data from echocardiographic studies of cardiac morphology and function during the hemodialysis session, as well as during the interdialytic intervals.
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Affiliation(s)
| | | | - Christodoulos E Papadopoulos
- 3rd Department of Cardiology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece; and
| | | | - Carmine Zoccali
- CNR-IFC, Clinical Epidemiology and Pathophysiology of Hypertension and Renal Diseases Unit, Ospedali Riuniti, Reggio Calabria, Italy
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Sarafidis PA, Kamperidis V, Loutradis C, Tsilonis K, Mpoutsiouki F, Saratzis A, Giannakoulas G, Sianos G, Karvounis H. Haemodialysis acutely deteriorates left and right diastolic function and myocardial performance: an effect related to high ultrafiltration volumes? Nephrol Dial Transplant 2018; 32:1402-1409. [PMID: 27738230 DOI: 10.1093/ndt/gfw345] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 08/20/2016] [Indexed: 11/12/2022] Open
Abstract
Background The effect of acute preload reduction during haemodialysis on left ventricle (LV) and right ventricle (RV) function is not well understood. This study aimed to evaluate acute changes in novel echocardiographic and tissue Doppler-derived indices of LV and RV function during the first and a standard weekly dialysis session and to examine the possible effect of acute intradialytic volume changes in LV and RV diastolic function and pulmonary circulation loading. Methods Forty-one adult patients receiving standard thrice-weekly haemodialysis participated in this study. Two-dimensional echocardiographic and tissue Doppler imaging (TDI) studies were performed with a standard cardiac ultrasound device (Vivid 7 or Vivid e, GE, Horton, Norway) shortly before and after the first weekly and a standard dialysis session. Multiple linear regression analysis was applied to assess the effect of volume changes on peak early mitral (E) and tricuspid (E RV) velocities changes. Results Significant reductions from pre- to post-haemodialysis were noted in body weight and systolic blood pressure. Post-haemodialysis left and right atrial, LV and RV sizing echocardiographic parameters were lower. LV systolic function, represented by LV ejection fraction, cardiac output and mean peak systolic LV and RV velocities at the annulus level, was unchanged. Diastolic function indices such as E (first session: 0.96 ± 0.28 versus 0.75 ± 0.27 m/s, P < 0.001; standard session: 0.89 ± 0.24 versus 0.78 ± 0.29, P < 0.001) and E RV (first session: 0.89 ± 0.26 versus 0.67 ± 0.25 m/s, P < 0.001; standard session: 0.86 ± 0.24 versus 0.77 ± 0.31, P < 0.001), E/A LV ratio, TDI peak early mitral (E') velocity and E'/A' RV ratio were reduced after haemodialysis. Pulmonary circulation loading, represented by RV systolic pressure, was significantly improved. In multiple regression model analysis, intradialytic weight loss was independently associated with changes in E [β = 0.042 (95% CI 0.018-0.066)] and E RV [β = 0.084 (95% CI 0.057-0.110)]. Conclusions This study shows that haemodialysis deteriorates cardiac diastolic function indices and improves pulmonary circulation loading, while systolic function remains unchanged. High intradialytic volume removal may affect cardiac diastolic function.
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Affiliation(s)
- Pantelis A Sarafidis
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki GR54642, Greece
| | - Vasilios Kamperidis
- First Department of Cardiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Charalampos Loutradis
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki GR54642, Greece
| | - Konstantinos Tsilonis
- First Department of Cardiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Fani Mpoutsiouki
- First Department of Cardiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Saratzis
- Department of Surgery, University Hospitals Coventry and Warwickshire, Coventry, UK
| | - Georgios Giannakoulas
- First Department of Cardiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Sianos
- First Department of Cardiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Haralambos Karvounis
- First Department of Cardiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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McIntyre C, Crowley L. Dying to Feel Better: The Central Role of Dialysis-Induced Tissue Hypoxia. Clin J Am Soc Nephrol 2016; 11:549-51. [PMID: 26936947 DOI: 10.2215/cjn.01380216] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Christopher McIntyre
- Lilibeth Caberto Kidney Clinical Research Unit, London Health Sciences Centre, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Lisa Crowley
- Lilibeth Caberto Kidney Clinical Research Unit, London Health Sciences Centre, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
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Eckardt KU, Gillespie IA, Kronenberg F, Richards S, Stenvinkel P, Anker SD, Wheeler DC, de Francisco AL, Marcelli D, Froissart M, Floege J. High cardiovascular event rates occur within the first weeks of starting hemodialysis. Kidney Int 2015; 88:1117-25. [PMID: 25923984 PMCID: PMC4653589 DOI: 10.1038/ki.2015.117] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 02/12/2015] [Accepted: 02/26/2015] [Indexed: 12/25/2022]
Abstract
Early mortality is high in hemodialysis (HD) patients, but little is known about early cardiovascular event (CVE) rates after HD initiation. To study this we analyzed data in the AROii cohort of incident HD patients from over 300 European Fresenius Medical Care dialysis centers. Weekly rates of a composite of CVEs during the first year and monthly rates of the composite and its constituents (coronary artery, cerebrovascular, peripheral arterial, congestive heart failure, and sudden cardiac death) during the first 2 years after HD initiation were assessed. Of 6308 patients that started dialysis within 7 days, 1449 patients experienced 2405 CVEs over the next 2 years. The first-year CVE rate (30.2/100 person-years; 95% CI, 28.7-31.7) greatly exceeded the second-year rate (19.4/100; 95% CI, 18.1-20.8). Composite CVEs were highest during the first week with increased risk compared with the second year, persisting until the fifth month. Except for sudden cardiac death, temporal patterns of rates for all CVE categories were very similar, with highest rates during the first month and a high-risk period extending to 4 months. Higher or lower cumulative weekly dialysis dose, lower blood flow, and lower net ultrafiltration during dialysis were associated with CVE during the high-risk period, but not during the post high-risk period. Thus, the incidence of CVE in the first weeks after HD initiation is much higher than during subsequent periods which raises concerns that HD initiation may trigger CVEs.
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Affiliation(s)
- Kai-Uwe Eckardt
- Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | | | - Florian Kronenberg
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Peter Stenvinkel
- Department of Renal Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Stefan D Anker
- Department of Innovative Clinical Trials, University Medical Centre, Göttingen, Germany
| | | | - Angel L de Francisco
- Servicio de Nefrología, Hospital Universitario Valdecilla, Universidad de Cantabria, Santander, Spain
| | | | | | - Jürgen Floege
- Division of Nephrology and Immunology, Department of Medicine, RWTH University of Aachen, Aachen, Germany
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