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Koyner JL, Arndt C, Baldira Martinez de Irujo J, Coelho S, Garcia-Montesinos de la Peña M, di Girolamo L, Joannidis M, Jorge-Monjas P, Koch C, Lobaz S, Meyer A, Ostermann M, Pertica N, Prowle JR, Silversides J, Zarbock A, Echeverri J, Harenski K, Forni LG. Assessing the role of Chemokine (C-C motif) ligand 14 in AKI: a European consensus meeting. Ren Fail 2024; 46:2345747. [PMID: 38666354 PMCID: PMC11057457 DOI: 10.1080/0886022x.2024.2345747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/16/2024] [Indexed: 05/01/2024] Open
Abstract
BACKGROUND Urinary Chemokine (C-C motif) ligand 14 (CCL14) is a biomarker associated with persistent severe acute kidney injury (AKI). There is limited data to support the implementation of this AKI biomarker to guide therapeutic actions. METHODS Sixteen AKI experts with clinical CCL14 experience participated in a Delphi-based method to reach consensus on when and how to potentially use CCL14. Consensus was defined as ≥ 80% agreement (participants answered with 'Yes', or three to four points on a five-point Likert Scale). RESULTS Key consensus areas for CCL14 test implementation were: identifying challenges and mitigations, developing a comprehensive protocol and pairing it with a treatment plan, and defining the target population. The majority agreed that CCL14 results can help to prioritize AKI management decisions. CCL14 levels above the high cutoff (> 13 ng/mL) significantly changed the level of concern for modifying the AKI treatment plan (p < 0.001). The highest level of concern to modify the treatment plan was for discussions on renal replacement therapy (RRT) initiation for CCL14 levels > 13 ng/mL. The level of concern for discussion on RRT initiation between High and Low, and between Medium and Low CCL14 levels, showed significant differences. CONCLUSION Real world urinary CCL14 use appears to provide improved care options to patients at risk for persistent severe AKI. Experts believe there is a role for CCL14 in AKI management and it may potentially reduce AKI-disease burden. There is, however, an urgent need for evidence on treatment decisions and adjustments based on CCL14 results.
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Affiliation(s)
- Jay L. Koyner
- Section of Nephrology, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Christian Arndt
- Anesthesiology and Intensive Care Medicine, Philipps-Universitat Marburg Fachbereich Medizin, Marburg, Germany
| | | | - Sílvia Coelho
- Intensive Care Department, Hospital Fernando da Fonseca EPE, Amadora, Portugal
| | | | - Luca di Girolamo
- Department of Anesthesia, Critical Care and Emergency, IRCCS Policlinico San Donato, Milan, Italy
| | - Michael Joannidis
- Division of Intensive Care and Emergency Medicine, Department of Internal Medicine, Medical Unversity Innsbruck, Innsbruck, Austria
| | - Pablo Jorge-Monjas
- Anesthesiology and Critical Care Department, Clinic University Hospital of Valladolid, Valladolid, Spain
| | - Christian Koch
- Department of Anesthesiology, Operative Intensive Care Medicine and Pain Therapy, Justus Liebig University of Giessen, Giessen, Germany
| | - Steven Lobaz
- Anaesthetics and Intensive Care, Barnsley Hospital NHS Foundation Trust, Barnsley, UK
| | - Alain Meyer
- Physiology and Functional Exploration Service, University Hospital of Strasbourg, Strasbourg, France
| | - Marlies Ostermann
- Department of Critical Care & Nephrology, King’s College London, Guy’s & St Thomas’ Hospital, London, UK
| | - Nicoletta Pertica
- Division of Nephrology, Department of Biomedical and Surgical Sciences, University Hospital of Verona, Verona, Italy
| | - John R. Prowle
- Critical Care & Perioperative Medicine Research Group, William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Jon Silversides
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast, UK
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | | | - Kai Harenski
- Baxter Deutschland GmbH, Unterschleissheim, Germany
| | - Lui G. Forni
- Critical Care Unit, Royal Surrey Hospital and School of Medicine, University of Surrey, Guildford, UK
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2
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Stenson EK, Alhamoud I, Alobaidi R, Bottari G, Fernandez S, Fuhrman DY, Guzzi F, Haga T, Kaddourah A, Marinari E, Mohamed T, Morgan C, Mottes T, Neumayr T, Ollberding NJ, Raggi V, Ricci Z, See E, Stanski NL, Zang H, Zangla E, Gist KM. Factors associated with successful liberation from continuous renal replacement therapy in children and young adults: analysis of the worldwide exploration of renal replacement outcomes collaborative in Kidney Disease Registry. Intensive Care Med 2024; 50:861-872. [PMID: 38436726 PMCID: PMC11164640 DOI: 10.1007/s00134-024-07336-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 01/25/2024] [Indexed: 03/05/2024]
Abstract
PURPOSE Continuous renal replacement therapy (CRRT) is used for supportive management of acute kidney injury (AKI) and disorders of fluid balance (FB). Little is known about the predictors of successful liberation in children and young adults. We aimed to identify the factors associated with successful CRRT liberation. METHODS The Worldwide Exploration of Renal Replacement Outcomes Collaborative in Kidney Disease study is an international multicenter retrospective study (32 centers, 7 nations) conducted from 2015 to 2021 in children and young adults (aged 0-25 years) treated with CRRT for AKI or FB disorders. Patients with previous dialysis dependence, tandem extracorporeal membrane oxygenation use, died within the first 72 h of CRRT initiation, and those who never had liberation attempted were excluded. Patients were categorized based on first liberation attempt: reinstituted (resumption of any dialysis within 72 h) vs. success (no receipt of dialysis for ≥ 72 h). Multivariable logistic regression was used to identify factors associated with successful CRRT liberation. RESULTS A total of 622 patients were included: 287 (46%) had CRRT reinstituted and 335 (54%) were successfully liberated. After adjusting for sepsis at admission and illness severity parameters, several factors were associated with successful liberation, including higher VIS (vasoactive-inotropic score) at CRRT initiation (odds ratio [OR] 1.35 [1.12-1.63]), higher PELOD-2 (pediatric logistic organ dysfunction-2) score at CRRT initiation (OR 1.71 [1.24-2.35]), higher urine output prior to CRRT initiation (OR 1.15 [1.001-1.32]), and shorter CRRT duration (OR 0.19 [0.12-0.28]). CONCLUSIONS Inability to liberate from CRRT was common in this multinational retrospective study. Modifiable and non-modifiable factors were associated with successful liberation. These results may inform the design of future clinical trials to optimize likelihood of CRRT liberation success.
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Affiliation(s)
- Erin K Stenson
- Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA.
| | - Issa Alhamoud
- Carver College of Medicine, University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA
| | | | | | - Sarah Fernandez
- School of Medicine, Gregorio Marañón University Hospital, Madrid, Spain
| | - Dana Y Fuhrman
- University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | | | - Taiki Haga
- Osaka City General Hospital, Osaka, Japan
| | | | | | - Tahagod Mohamed
- Nationwide Children's Hospital, The Kidney and Urinary Tract Center, The Ohio State University College of Medicine, Columbus, OH, USA
| | | | - Theresa Mottes
- Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Tara Neumayr
- St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, MO, USA
| | - Nicholas J Ollberding
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Valeria Raggi
- Bambino Gesù, Children's Hospital, IRCCS, Rome, Italy
| | - Zaccaria Ricci
- Department of Pediatrics, Pediatric Intensive Care Unit, Meyer Children's Hospital, IRCCS, Florence, Italy
| | - Emily See
- Royal Children's Hospital, Murdoch Children's Research Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Natalja L Stanski
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Huaiyu Zang
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Katja M Gist
- St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, MO, USA
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Li M, Han S, Liang F, Hu C, Zhang B, Hou Q, Zhao S. Machine Learning for Predicting Risk and Prognosis of Acute Kidney Disease in Critically Ill Elderly Patients During Hospitalization: Internet-Based and Interpretable Model Study. J Med Internet Res 2024; 26:e51354. [PMID: 38691403 PMCID: PMC11097053 DOI: 10.2196/51354] [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: 07/28/2023] [Revised: 01/23/2024] [Accepted: 04/17/2024] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND Acute kidney disease (AKD) affects more than half of critically ill elderly patients with acute kidney injury (AKI), which leads to worse short-term outcomes. OBJECTIVE We aimed to establish 2 machine learning models to predict the risk and prognosis of AKD in the elderly and to deploy the models as online apps. METHODS Data on elderly patients with AKI (n=3542) and AKD (n=2661) from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database were used to develop 2 models for predicting the AKD risk and in-hospital mortality, respectively. Data collected from Xiangya Hospital of Central South University were for external validation. A bootstrap method was used for internal validation to obtain relatively stable results. We extracted the indicators within 24 hours of the first diagnosis of AKI and the fluctuation range of some indicators, namely delta (day 3 after AKI minus day 1), as features. Six machine learning algorithms were used for modeling; the area under the receiver operating characteristic curve (AUROC), decision curve analysis, and calibration curve for evaluating; Shapley additive explanation (SHAP) analysis for visually interpreting; and the Heroku platform for deploying the best-performing models as web-based apps. RESULTS For the model of predicting the risk of AKD in elderly patients with AKI during hospitalization, the Light Gradient Boosting Machine (LightGBM) showed the best overall performance in the training (AUROC=0.844, 95% CI 0.831-0.857), internal validation (AUROC=0.853, 95% CI 0.841-0.865), and external (AUROC=0.755, 95% CI 0.699-0.811) cohorts. In addition, LightGBM performed well for the AKD prognostic prediction in the training (AUROC=0.861, 95% CI 0.843-0.878), internal validation (AUROC=0.868, 95% CI 0.851-0.885), and external (AUROC=0.746, 95% CI 0.673-0.820) cohorts. The models deployed as online prediction apps allowed users to predict and provide feedback to submit new data for model iteration. In the importance ranking and correlation visualization of the model's top 10 influencing factors conducted based on the SHAP value, partial dependence plots revealed the optimal cutoff of some interventionable indicators. The top 5 factors predicting the risk of AKD were creatinine on day 3, sepsis, delta blood urea nitrogen (BUN), diastolic blood pressure (DBP), and heart rate, while the top 5 factors determining in-hospital mortality were age, BUN on day 1, vasopressor use, BUN on day 3, and partial pressure of carbon dioxide (PaCO2). CONCLUSIONS We developed and validated 2 online apps for predicting the risk of AKD and its prognostic mortality in elderly patients, respectively. The top 10 factors that influenced the AKD risk and mortality during hospitalization were identified and explained visually, which might provide useful applications for intelligent management and suggestions for future prospective research.
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Affiliation(s)
- Mingxia Li
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, China
- Department of Critical Care Medicine, ZhuJiang Hospital of Southern Medical University, Guangzhou, China
| | - Shuzhe Han
- Department of Obstetrics and Gynecology, 967th Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Dalian, China
| | - Fang Liang
- Department of Hematology and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Chenghuan Hu
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, China
| | - Buyao Zhang
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, China
| | - Qinlan Hou
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, China
| | - Shuangping Zhao
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
- Hunan Provincial Clinical Research Center of Intensive Care Medicine, Changsha, China
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4
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Wang TH, Kao CC, Chang TH. Ensemble Machine Learning for Predicting 90-Day Outcomes and Analyzing Risk Factors in Acute Kidney Injury Requiring Dialysis. J Multidiscip Healthc 2024; 17:1589-1602. [PMID: 38628614 PMCID: PMC11020304 DOI: 10.2147/jmdh.s448004] [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] [Received: 12/07/2023] [Accepted: 03/24/2024] [Indexed: 04/19/2024] Open
Abstract
Purpose Our objectives were to (1) employ ensemble machine learning algorithms utilizing real-world clinical data to predict 90-day prognosis, including dialysis dependence and mortality, following the first hospitalized dialysis and (2) identify the significant factors associated with overall outcomes. Patients and Methods We identified hospitalized patients with Acute kidney injury requiring dialysis (AKI-D) from a dataset of the Taipei Medical University Clinical Research Database (TMUCRD) from January 2008 to December 2020. The extracted data comprise demographics, comorbidities, medications, and laboratory parameters. Ensemble machine learning models were developed utilizing real-world clinical data through the Google Cloud Platform. Results The Study Analyzed 1080 Patients in the Dialysis-Dependent Module, Out of Which 616 Received Regular Dialysis After 90 Days. Our Ensemble Model, Consisting of 25 Feedforward Neural Network Models, Demonstrated the Best Performance with an Auroc of 0.846. We Identified the Baseline Creatinine Value, Assessed at Least 90 Days Before the Initial Dialysis, as the Most Crucial Factor. We selected 2358 patients, 984 of whom were deceased after 90 days, for the survival module. The ensemble model, comprising 15 feedforward neural network models and 10 gradient-boosted decision tree models, achieved superior performance with an AUROC of 0.865. The pre-dialysis creatinine value, tested within 90 days prior to the initial dialysis, was identified as the most significant factor. Conclusion Ensemble machine learning models outperform logistic regression models in predicting outcomes of AKI-D, compared to existing literature. Our study, which includes a large sample size from three different hospitals, supports the significance of the creatinine value tested before the first hospitalized dialysis in determining overall prognosis. Healthcare providers could benefit from utilizing our validated prediction model to improve clinical decision-making and enhance patient care for the high-risk population.
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Affiliation(s)
- Tzu-Hao Wang
- Division of General Medicine, Department of Medical Education, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan, Republic of China
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Chih-Chin Kao
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, Republic of China
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China
- Taipei Medical University-Research Center of Urology and Kidney (TMU-RCUK), Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Tzu-Hao Chang
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, Republic of China
- Clinical Big Data Research Center, Taipei Medical University Hospital, Taipei City, Taiwan, Republic of China
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5
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Hsieh CC, Chen SY, Chen JY, Pan HC, Liao HW, Wu VC. Nephrologist follow-up care for the acute kidney injury-chronic kidney disease continuum and clinical outcomes: A systematic review and meta-analysis. J Chin Med Assoc 2024; 87:280-286. [PMID: 38289278 DOI: 10.1097/jcma.0000000000001052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Acute kidney injury (AKI) to chronic kidney disease (CKD) continuum will increase patients' risk of mortality and long-term dialysis. The aim of the present meta-analysis is to explore the effectiveness of nephrologist care and focus on the follow-up in patients with AKI. METHODS A systematic search of studies on nephrologist care for the AKI to CKD continuum has been conducted from PubMed and other different databases. Briefly, the primary outcome is the odds ratio of mortality as well as the secondary outcome is de novo renal replacement therapy. RESULTS This research includes one randomized controlled trial (RCT) and four cohort studies comprised of 15 541 participants in total. The quantitative analysis displays a lower mortality rate with nephrologist care versus non-nephrologist care in patients' discharge after a hospitalization complicated by AKI (odds ratio: 0.768; 95% CI, 0.616-0.956). By means of Trial Sequential Analysis (TSA), we conclude that nephrologist care after an AKI episode declines 30% relative risks of all-cause mortality. CONCLUSION Nephrologist care for AKI patients after a hospitalization significantly has reduced mortality compared to those followed up by non-nephrologists. There is a trend toward a potentially superior survival rate with nephrologist care has been going well in the recent years.
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Affiliation(s)
- Chih-Chieh Hsieh
- Encore Clinic, Kaohsiung, Taiwan, ROC
- Graduate Institute of Biomedical Information, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Sheng-Yin Chen
- School of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC
| | - Jui-Yi Chen
- Division of Nephrology, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan, ROC
| | - Heng-Chih Pan
- Division of Nephrology, Department of Internal Medicine, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan, ROC
| | | | - Vin-Cent Wu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, ROC
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Neyra JA, Gewin L, Ng JH, Barreto EF, Freshly B, Willett J, Abdel-Rahman EM, McCoy I, Kwong YD, Silver SA, Cerda J, Vijayan A. Challenges in the Care of Patients with AKI Receiving Outpatient Dialysis: AKINow Recovery Workgroup Report. KIDNEY360 2024; 5:274-284. [PMID: 38055734 PMCID: PMC10914193 DOI: 10.34067/kid.0000000000000332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Up to one third of survivors of AKI that required dialysis (AKI-D) during hospitalization remain dialysis dependent at hospital discharge. Of these, 20%-60%, depending on the clinical setting, eventually recover enough kidney function to stop dialysis, and the remainder progress to ESKD. METHODS To describe the challenges facing those still receiving dialysis on discharge, the AKINow Committee conducted a group discussion comprising 59 participants, including physicians, advanced practitioners, nurses, pharmacists, and patients. The discussion was framed by a patient who described gaps in care delivery at different transition points and miscommunication between care team members and the patient. RESULTS Group discussions collected patient perspectives of ( 1 ) being often scared and uncertain about what is happening to and around them and ( 2 ) the importance of effective and timely communication, a comfortable physical setting, and attentive and caring health care providers for a quality health care experience. Provider perspectives included ( 1 ) the recognition of the lack of evidence-based practices and quality indicators, the significant variability in current care models, and the uncertain reimbursement incentives focused on kidney recovery and ( 2 ) the urgency to address communication barriers among hospital providers and outpatient facilities. CONCLUSIONS The workgroup identified key areas for future research and policy change to ( 1 ) improve communication among hospital providers, dialysis units, and patients/care partners; ( 2 ) develop tools for risk classification, subphenotyping, and augmented clinical decision support; ( 3 ) improve education to providers, staff, and patients/care partners; ( 4 ) identify best practices to improve relevant outcomes; ( 5 ) validate quality indicators; and ( 6 ) assess the effect of social determinants of health on outcomes. We urge all stakeholders involved in the process of AKI-D care to align goals and work together to fill knowledge gaps and optimize the care to this highly vulnerable patient population.
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Affiliation(s)
- Javier A. Neyra
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Leslie Gewin
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Jia H. Ng
- Division of Kidney Diseases and Hypertension, Department of Medicine, Donald and Barbara Zucker School of Medicine, Hempstead, New York
| | | | | | - Jeff Willett
- ASN: American Society of Nephrology, Washington, DC
| | - Emaad M. Abdel-Rahman
- Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, Virginia
| | - Ian McCoy
- Division of Nephrology, Department of Medicine, University of California, San Francisco, California
| | - Yuenting D. Kwong
- Division of Nephrology, Department of Medicine, University of California, San Francisco, California
| | - Samuel A. Silver
- Division of Nephrology, Kingston Health Sciences Center, Queen's University, Kingston, Ontario, Canada
| | - Jorge Cerda
- Division of Nephrology, Department of Medicine, Albany Medical College, Albany, New York
| | - Anitha Vijayan
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
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7
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Klouche K, Brunot V, Larcher R, Lautrette A. Weaning from Kidney Replacement Therapy in the Critically Ill Patient with Acute Kidney Injury. J Clin Med 2024; 13:579. [PMID: 38276085 PMCID: PMC10816626 DOI: 10.3390/jcm13020579] [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: 12/21/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Around 10% of critically ill patients suffer acute kidney injury (AKI) requiring kidney replacement therapy (KRT), with a mortality rate approaching 50%. Although most survivors achieve sufficient renal recovery to be weaned from KRT, there are no recognized guidelines on the optimal period for weaning from KRT. A systematic review was conducted using a peer-reviewed strategy, combining themes of KRT (intermittent hemodialysis, CKRT: continuous veno-venous hemo/dialysis/filtration/diafiltration, sustained low-efficiency dialysis/filtration), factors predictive of successful weaning (defined as a prolonged period without new KRT) and patient outcomes. Our research resulted in studies, all observational, describing clinical and biological parameters predictive of successful weaning from KRT. Urine output prior to KRT cessation is the most studied variable and the most widely used in practice. Other predictive factors, such as urinary urea and creatinine and new urinary and serum renal biomarkers, including cystatin C and neutrophil gelatinase-associated lipocalin (NGAL), were also analyzed in the light of recent studies. This review presents the rationale for early weaning from KRT, the parameters that can guide it, and its practical modalities. Once the patient's clinical condition has stabilized and volume status optimized, a diuresis greater than 500 mL/day should prompt the intensivist to consider weaning. Urinary parameters could be useful in predicting weaning success but have yet to be validated.
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Affiliation(s)
- Kada Klouche
- Intensive Care Unit Département, Lapeyronie University Hospital Montpellier, 34295 Montpellier, France; (V.B.); (R.L.)
- Phymedexp, Faculty of Medicine, Université de Montpellier, Inserm, Centre National de Recherche Scientifique (CNRS), CHRU de Montpellier, 34295 Montpellier, France
| | - Vincent Brunot
- Intensive Care Unit Département, Lapeyronie University Hospital Montpellier, 34295 Montpellier, France; (V.B.); (R.L.)
| | - Romaric Larcher
- Intensive Care Unit Département, Lapeyronie University Hospital Montpellier, 34295 Montpellier, France; (V.B.); (R.L.)
- Phymedexp, Faculty of Medicine, Université de Montpellier, Inserm, Centre National de Recherche Scientifique (CNRS), CHRU de Montpellier, 34295 Montpellier, France
| | - Alexandre Lautrette
- Centre de Lutte Contre le Cancer Jean PERRIN, Médecine Intensive Réanimation, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France;
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8
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Michels G, John S, Janssens U, Raake P, Schütt KA, Bauersachs J, Barchfeld T, Schucher B, Delis S, Karpf-Wissel R, Kochanek M, von Bonin S, Erley CM, Kuhlmann SD, Müllges W, Gahn G, Heppner HJ, Wiese CHR, Kluge S, Busch HJ, Bausewein C, Schallenburger M, Pin M, Neukirchen M. [Palliative aspects in clinical acute and emergency medicine as well as intensive care medicine : Consensus paper of the DGIIN, DGK, DGP, DGHO, DGfN, DGNI, DGG, DGAI, DGINA and DG Palliativmedizin]. Med Klin Intensivmed Notfmed 2023; 118:14-38. [PMID: 37285027 PMCID: PMC10244869 DOI: 10.1007/s00063-023-01016-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2023] [Indexed: 06/08/2023]
Abstract
The integration of palliative medicine is an important component in the treatment of various advanced diseases. While a German S3 guideline on palliative medicine exists for patients with incurable cancer, a recommendation for non-oncological patients and especially for palliative patients presenting in the emergency department or intensive care unit is missing to date. Based on the present consensus paper, the palliative care aspects of the respective medical disciplines are addressed. The timely integration of palliative care aims to improve quality of life and symptom control in clinical acute and emergency medicine as well as intensive care.
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Affiliation(s)
- Guido Michels
- Zentrum für Notaufnahme, Krankenhaus der Barmherzigen Brüder Trier, Medizincampus der Universitätsmedizin Mainz, Nordallee 1, 54292, Trier, Deutschland.
| | - Stefan John
- Medizinische Klinik 8, Paracelsus Medizinische Privatuniversität und Universität Erlangen-Nürnberg, Klinikum Nürnberg-Süd, 90471, Nürnberg, Deutschland
| | - Uwe Janssens
- Klinik für Innere Medizin und Internistische Intensivmedizin, St.-Antonius-Hospital gGmbH, Eschweiler, Deutschland
| | - Philip Raake
- I. Medizinischen Klinik, Universitätsklinikum Augsburg, Herzzentrum Augsburg-Schwaben, Augsburg, Deutschland
| | - Katharina Andrea Schütt
- Klinik für Kardiologie, Angiologie und Internistische Intensivmedizin (Medizinische Klinik I), Uniklinik RWTH Aachen, Aachen, Deutschland
| | - Johann Bauersachs
- Klinik für Kardiologie und Angiologie, Zentrum Innere Medizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - Thomas Barchfeld
- Medizinische Klinik II, Klinik für Pneumologie, Intensivmedizin und Schlafmedizin, Knappschaftskrankenhaus Dortmund, Klinikum Westfalen, Dortmund, Deutschland
| | - Bernd Schucher
- Abteilung Pneumologie, LungenClinic Großhansdorf, Großhansdorf, Deutschland
| | - Sandra Delis
- Helios Klinikum Emil von Behring GmbH, Berlin, Deutschland
| | - Rüdiger Karpf-Wissel
- Westdeutsches Lungenzentrum am Universitätsklinikum Essen gGmbH, Klinik für Pneumologie, Universitätsmedizin Essen Ruhrlandklinik, Essen, Deutschland
| | - Matthias Kochanek
- Medizinische Klinik I, Medizinische Fakultät und Uniklinik Köln, Center for Integrated Oncology (CIO) Cologne-Bonn, Universität zu Köln, Köln, Deutschland
| | - Simone von Bonin
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Deutschland
| | | | | | - Wolfgang Müllges
- Neurologische Klinik und Poliklinik, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - Georg Gahn
- Neurologische Klinik, Städtisches Klinikum Karlsruhe gGmbH, Karlsruhe, Deutschland
| | - Hans Jürgen Heppner
- Klinik für Geriatrie und Geriatrische Tagesklinik, Klinikum Bayreuth - Medizincampus Oberfranken, Bayreuth, Deutschland
| | - Christoph H R Wiese
- Klinik für Anästhesiologie, Universitätsklinikum Regensburg, Regensburg, Deutschland
- Klinik für Anästhesiologie und Intensivmedizin, HEH Kliniken Braunschweig, Braunschweig, Deutschland
| | - Stefan Kluge
- Klinik für Intensivmedizin, Universitätsklinikum Eppendorf, Hamburg, Deutschland
| | - Hans-Jörg Busch
- Universitätsklinikum, Universitäts-Notfallzentrum, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland
| | - Claudia Bausewein
- Klinik und Poliklinik für Palliativmedizin, LMU Klinikum München, München, Deutschland
| | - Manuela Schallenburger
- Interdisziplinäres Zentrum für Palliativmedizin (IZP), Universitätsklinikum Düsseldorf, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Deutschland
| | - Martin Pin
- Zentrale Interdisziplinäre Notaufnahme, Florence-Nightingale-Krankenhaus Düsseldorf, Düsseldorf, Deutschland
| | - Martin Neukirchen
- Interdisziplinäres Zentrum für Palliativmedizin (IZP), Universitätsklinikum Düsseldorf, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Deutschland
- Klinik für Anästhesiologie, Universitätsklinikum Düsseldorf, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Deutschland
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9
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Michels G, Schallenburger M, Neukirchen M. Recommendations on palliative care aspects in intensive care medicine. Crit Care 2023; 27:355. [PMID: 37723595 PMCID: PMC10506254 DOI: 10.1186/s13054-023-04622-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/20/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND The timely integration of palliative care is important for patients suffering from various advanced diseases with limited prognosis. While a German S-3-guideline on palliative care exists for patients with incurable cancer, a recommendation for non-oncological patients and especially for integration of palliative care into intensive care medicine is missing to date. METHOD Ten German medical societies worked on recommendations on palliative care aspects in intensive care in a consensus process from 2018 to 2023. RESULTS Based on the german consensus paper, the palliative care aspects of the respective medical disciplines concerning intensive care are addressed. The recommendations partly refer to general situations, but also to specific aspects or diseases, such as geriatric issues, heart or lung diseases, encephalopathies and delirium, terminal renal diseases, oncological diseases and palliative emergencies in intensive care medicine. Measures such as non-invasive ventilation for symptom control and compassionate weaning are also included. CONCLUSION The timely integration of palliative care into intensive care medicine aims to improve quality of life and symptom control and also takes into acccount the often urgently needed support for patients' highly stressed relatives.
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Affiliation(s)
- Guido Michels
- Department of Emergency Medicine, Hospital of the Barmherzige Brüder, Trier, Germany
| | - Manuela Schallenburger
- Interdisciplinary Centre for Palliative Medicine, Heinrich-Heine-University Duesseldorf, University Hospital Duesseldorf, Düsseldorf, Germany.
| | - Martin Neukirchen
- Interdisciplinary Centre for Palliative Medicine, Heinrich-Heine-University Duesseldorf, University Hospital Duesseldorf, Düsseldorf, Germany
- Department of Anaesthesiology, Heinrich-Heine-University Duesseldof, Düsseldorf, Germany
- Center of integrated oncology Aachen, Bonn, Cologne (CIO ABCD) Heinrich-Heine-University, Düsseldorf, Germany
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10
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Gomes CLR, Cleto-Yamane TL, Ruzani F, Suassuna JHR. Socioeconomic Influences on the Outcomes of Dialysis-Requiring Acute Kidney Injury in Brazil. Kidney Int Rep 2023; 8:1772-1783. [PMID: 37705894 PMCID: PMC10496017 DOI: 10.1016/j.ekir.2023.06.003] [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: 12/16/2022] [Revised: 05/03/2023] [Accepted: 06/05/2023] [Indexed: 09/15/2023] Open
Abstract
Introduction Although research suggests that socioeconomic deprivation is linked to a higher incidence of acute kidney injury (AKI) and worse outcomes in high-income countries, there is limited knowledge about these epidemiologic factors in developing countries. In addition, the impact of medical institution administration (private versus public) on AKI outcomes remains to be determined. Methods We studied 15,186 pediatric and adult patients with dialysis-requiring AKI (AKI-D) admitted to private and public hospitals in Rio de Janeiro, Brazil. According to Brazil's demographic census, socioeconomic indicators were derived from patient zip codes. Propensity score matching analysis and a mixed-effect Cox regression were used to assess the impact of socioeconomic indicators and hospital governance on patient survival. Results Crude mortality rates were higher in private hospitals than in public hospitals (71.8% vs. 59.5%, P < 0.001) and were associated with significant differences in age (75 years, interquartile range [IQR]: 61-83 vs. 53 years, IQR: 31-66), baseline renal function (prevalence of chronic kidney disease [CKD]: 33.2% vs. 23%, P < 0.001), comorbidities (Charlson score: 2.03 ± 0.87 vs. 1.72 ± 0.75, P < 0.001), and severity of presentation (mechanical ventilation: 76.5% vs. 58% and vasopressors: 72.8% vs. 50.5%, P < 0.001). After adjustments and propensity score matching, we found no effect of different hospital administrations or socioeconomic factors on mortality. Baseline characteristics and the severity of presentation primarily influenced AKI-D prognosis. Conclusions Despite significant racial and socioeconomic differences in hospital governance, these indicators had no independent influence on mortality. Future epidemiologic studies should investigate these relevant assumptions to allow healthcare systems to manage this severe syndrome promptly.
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Affiliation(s)
- Conrado Lysandro Rodrigues Gomes
- Clinical and Academic Unit of Nephrology, Hospital Universitário Pedro Ernesto, Faculty of Medical Sciences, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Kidney Assistance Ltd., Rio de Janeiro, Brazil
| | - Thais Lyra Cleto-Yamane
- Clinical and Academic Unit of Nephrology, Hospital Universitário Pedro Ernesto, Faculty of Medical Sciences, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Frederico Ruzani
- Clinical and Academic Unit of Nephrology, Hospital Universitário Pedro Ernesto, Faculty of Medical Sciences, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Kidney Assistance Ltd., Rio de Janeiro, Brazil
| | - José Hermógenes Rocco Suassuna
- Clinical and Academic Unit of Nephrology, Hospital Universitário Pedro Ernesto, Faculty of Medical Sciences, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Kidney Assistance Ltd., Rio de Janeiro, Brazil
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11
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Teixeira JP, Griffin BR, Pal CA, González-Seguel F, Jenkins N, Jones BM, Yoshida Y, George N, Israel HP, Ghazi L, Neyra JA, Mayer KP. Critical illness myopathy and trajectory of recovery in acute kidney injury requiring continuous renal replacement therapy: a prospective observational trial protocol. BMJ Open 2023; 13:e072448. [PMID: 37217272 PMCID: PMC10230984 DOI: 10.1136/bmjopen-2023-072448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/28/2023] [Indexed: 05/24/2023] Open
Abstract
INTRODUCTION Acute kidney injury requiring renal replacement therapy (AKI-RRT) is common in the intensive care unit (ICU) and is associated with significant morbidity and mortality. Continuous RRT (CRRT) non-selectively removes large amounts of amino acids from plasma, lowering serum amino acid concentrations and potentially depleting total-body amino acid stores. Therefore, the morbidity and mortality associated with AKI-RRT may be partly mediated through accelerated skeletal muscle atrophy and resulting muscle weakness. However, the impact of AKI-RRT on skeletal muscle mass and function during and following critical illness remains unknown. We hypothesise that patients with AKI-RRT have higher degrees of acute muscle loss than patients without AKI-RRT and that AKI-RRT survivors are less likely to recover muscle mass and function when compared with other ICU survivors. METHODS AND ANALYSIS This protocol describes a prospective, multicentre, observational trial assessing skeletal muscle size, quality and function in ICU patients with AKI-RRT. We will perform musculoskeletal ultrasound to longitudinally evaluate rectus femoris size and quality at baseline (within 48 hours of CRRT initiation), day 3, day 7 or at ICU discharge, at hospital discharge, and 1-3 months postdischarge. Additional skeletal muscle and physical function tests will be performed at hospital discharge and postdischarge follow-up. We will analyse the effect of AKI-RRT by comparing the findings in enrolled subjects to historical controls of critically ill patients without AKI-RRT using multivariable modelling. ETHICS AND DISSEMINATION We anticipate our study will reveal that AKI-RRT is associated with greater degrees of muscle loss and dysfunction along with impaired postdischarge recovery of physical function. These findings could impact the in-hospital and postdischarge treatment plan for these patients to include focused attention on muscle strength and function. We intend to disseminate findings to participants, healthcare professionals, the public and other relevant groups via conference presentation and publication without any publication restrictions. TRIAL REGISTRATION NUMBER NCT05287204.
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Affiliation(s)
- J Pedro Teixeira
- Divisions of Nephrology and Pulmonary, Critical Care, and Sleep Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
- Center for Adult Critical Care, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Benjamin R Griffin
- Division of Nephrology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Chaitanya Anil Pal
- Division of Nephrology, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Felipe González-Seguel
- Servicio Medicina Física y Rehabilitación, Clinica Alemana de Santiago SA, Santiago, Región Metropolitana, Chile
- Facultad de Medicina, Universidad del Desarrollo, Santiago, Región Metropolitana, Chile
| | - Nathanial Jenkins
- Department of Health and Human Physiology, The University of Iowa, Iowa City, Iowa, USA
| | - Beth M Jones
- Department of Orthopedics & Rehabilitation, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Yuri Yoshida
- Department of Orthopedics & Rehabilitation, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Naomi George
- Center for Adult Critical Care, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
- Department of Emergency Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Hayley Puffer Israel
- Center for Adult Critical Care, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Lama Ghazi
- Department of Epidemiology, The University of Alabama School of Public Health, Birmingham, Alabama, USA
| | - Javier A Neyra
- Division of Nephrology, The University of Alabama Heersink School of Medicine, Birmingham, Alabama, USA
| | - Kirby P Mayer
- Department of Physical Therapy, University of Kentucky College of Health Sciences, Lexington, Kentucky, USA
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12
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Clark EG, James MT, Hiremath S, Sood MM, Wald R, Garg AX, Silver SA, Tan Z, van Walraven C. Predictive Models for Kidney Recovery and Death in Patients Continuing Dialysis as Outpatients after Starting in Hospital. Clin J Am Soc Nephrol 2023; 18:01277230-990000000-00128. [PMID: 37071648 PMCID: PMC10356112 DOI: 10.2215/cjn.0000000000000173] [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: 11/02/2022] [Accepted: 03/30/2023] [Indexed: 04/19/2023]
Abstract
BACKGROUND For patients who initiate dialysis during a hospital admission and continue to require dialysis after discharge, outpatient dialysis management could be improved by better understanding the future likelihood of recovery to dialysis independence and the competing risk of death. METHODS We derived and validated linked models to predict the subsequent recovery to dialysis independence and death within 1 year of hospital discharge using a population-based cohort of 7657 patients in Ontario, Canada. Predictive variables included age, comorbidities, length of hospital admission, intensive care status, discharge disposition, and prehospital admission eGFR and random urine albumin-to-creatinine ratio. Models were externally validated in 1503 contemporaneous patients from Alberta, Canada. Both models were created using proportional hazards survival analysis, with the "Recovery Model" using Fine-Gray methods. Probabilities generated from both models were used to develop 16 distinct "Recovery and Death in Outpatients" (ReDO) risk groups. RESULTS ReDO risk groups in the derivation group had significantly distinct 1-year probabilities for recovery to dialysis independence (first quartile: 10% [95% confidence interval (CI), 9% to 11%]; fourth quartile: 73% [70% to 77%]) and for death (first quartile: 12% [11% to 13%]; fourth quartile: 46% [43% to 50%]). In the validation group, model discrimination was modest (c-statistics [95% CI] for recovery and for death quartiles were 0.70 [0.67 to 0.73] and 0.66 [0.62 to 0.69], respectively), but calibration was excellent (integrated calibration index [95% CI] was 7% [5% to 9%] and 4% [2% to 6%] for recovery and death, respectively). CONCLUSIONS The ReDO models generated accurate expected probabilities of recovery to dialysis independence and death in patients who continued outpatient dialysis after initiating dialysis in hospital. An online tool on the basis of the models is available at https://qxmd.com/calculate/calculator_874 .
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Affiliation(s)
- Edward G. Clark
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Kidney Research Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Matthew T. James
- Division of Nephrology, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, Cumming School of Medicine, O'Brien Institute of Public Health, University of Calgary, Calgary, Alberta, Canada
| | - Swapnil Hiremath
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Kidney Research Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Manish M. Sood
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Kidney Research Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Medicine and Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Ron Wald
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
- Division of Nephrology, Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Amit X. Garg
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
- Division of Nephrology, Department of Medicine, Western University, London, Ontario, Canada
- Lawson Health Research Institute, London Health Sciences Centre, London, Ontario, Canada
| | - Samuel A. Silver
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
- Division of Nephrology, Department of Medicine, Queens University, Kingston, Ontario, Canada
| | - Zhi Tan
- Division of Nephrology, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Carl van Walraven
- Department of Medicine and Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
- Department of Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
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Tu J, Hu L, Mohammed KJ, Le BN, Chen P, Ali E, Ali HE, Sun L. Application of logistic regression, support vector machine and random forest on the effects of titanium dioxide nanoparticles using macroalgae in treatment of certain risk factors associated with kidney injuries. ENVIRONMENTAL RESEARCH 2023; 220:115167. [PMID: 36584853 DOI: 10.1016/j.envres.2022.115167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/16/2022] [Accepted: 12/25/2022] [Indexed: 06/17/2023]
Abstract
The use of titanium dioxide (TiO2) nanoparticles in many biological and technical domains is on the rise. There hasn't been much research on the toxicity of titanium dioxide nanoparticles in biological systems, despite their ubiquitous usage. In the current investigation, samples were exposed to various dosages of TiO2 nanoparticles for 4 days, 1 month, and 2 months following treatment. ICP-AES was used to dose TiO2 into the tissues, and the results showed that the kidney had a significant TiO2 buildup. On the other hand, apoptosis of renal tubular cells is one of the most frequent cellular processes contributing to kidney disease (KD). Nevertheless, the impact of macroalgal seaweed extract on KD remains undetermined. In this work, machine learning (ML) approaches have been applied to develop prediction algorithms for acute kidney injury (AKI) by use of titanium dioxide and macroalgae in hospitalized patients. Fifty patients with (AKI) and 50 patients (non-AKI group) have been admitted and considered. Regarding demographic data, and laboratory test data as input parameters, support vector machine (SVM), and random forest (RF) are utilized to build models of AKI prediction and compared to the predictive performance of logistic regression (LR). Due to its strong antioxidant and anti-inflammatory powers, the current research ruled out the potential of using G. oblongata red macro algae as a source for a variety of products for medicinal uses. Despite a high and fast processing of algorithms, logistic regression showed lower overfitting in comparison to SVM, and Random Forest. The dataset is subjected to algorithms, and the categorization of potential risk variables yields the best results. AKI samples showed significant organ defects than non-AKI ones. Multivariate LR indicated that lymphocyte, and myoglobin (MB) ≥ 1000 ng/ml were independent risk parameters for AKI samples. Also, GCS score (95% CI 1.4-8.3 P = 0.014) were the risk parameters for 60-day mortality in samples with AKI. Also, 90-day mortality in AKI patients was significantly high (P < 0.0001). In compared to the control group, there were no appreciable changes in the kidney/body weight ratio or body weight increases. Total thiol levels in kidney homogenate significantly decreased, and histopathological analysis confirmed these biochemical alterations. According to the results, oral TiO2 NP treatment may cause kidney damage in experimental samples.
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Affiliation(s)
- Jianxin Tu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Lingzhen Hu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Khidhair Jasim Mohammed
- Air Conditioning and Refrigeration Techniques Engineering Department, Al-Mustaqbal University College, Babylon 51001, Iraq
| | - Binh Nguyen Le
- Institute of Research and Development, Duy Tan University, Da Nang, VietNam; School of Engineering & Technology, Duy Tan University, Da Nang, VietNam.
| | - Peirong Chen
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Elimam Ali
- Department of Civil Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - H Elhosiny Ali
- Advanced Functional Materials & Optoelectronic Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Physics Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Li Sun
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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Manley HJ, Aweh G, Frament J, Ladik V, Lacson EK. A real world comparison of HepB (Engerix-B®) and HepB-CpG (Heplisav-B®) vaccine seroprotection in patients receiving maintenance dialysis. Nephrol Dial Transplant 2023; 38:447-454. [PMID: 35150277 DOI: 10.1093/ndt/gfac039] [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: 10/06/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Vaccination against hepatitis B virus (HBV) is recommended for dialysis patients. Two reports comparing seroprotection (SP) rates following HepB and HepB-CpG in vaccine-naïve patients with chronic kidney disease enrolled few dialysis patients (n = 122 combined). SP rates in a subset of dialysis patients were not reported or not powered to detect statistically significant differences. SP rates in those requiring additional vaccine series or booster doses are not known. METHODS A retrospective cohort analysis including dialysis patients completing HepB or HepB-CpG vaccination between January 2019 and December 2020. Vaccine-naïve patients received a series of HepB or HepB-CpG (Series 1). A repeat series was given to nonresponders (Series 2). A booster regimen consists of one dose of either vaccine. Primary outcome was achieving SP (anti-HBs >10 mIU/mL) at least 60 days after the last HBV vaccine dose for Series 1 and Series 2, and achieving SP at least 3 weeks post-booster. RESULTS For Series 1 (n = 3509), SP after HepB vaccination was significantly higher (62.9% versus 50.1% for HepB-CpG; P < 0.0001). Series 2 (n = 1040) and booster (n = 2028) SP rates were similar between vaccines. Patients that received up to four HepB-CpG doses had higher SP rates compared with four doses of HepB (82.0% versus 62.9%, respectively; P < 0.0001). CONCLUSIONS SP rates in hepatitis B vaccine-naïve dialysis patients administered a recommended four doses of HepB were higher than those recommended two doses of HepB-CpG. SP rates were higher and achieved sooner if HepB-CpG was utilized initially and, if needed, for Series 2. Optimal HepB-CpG dosing deserves further study.
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Affiliation(s)
| | | | | | | | - Eduardo K Lacson
- Dialysis Clinic Inc, Nashville, TN, USA
- Tufts Medical Center, Boston, MA, USA
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15
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Identification of Pre-Renal and Intrinsic Acute Kidney Injury by Anamnestic and Biochemical Criteria: Distinct Association with Urinary Injury Biomarkers. Int J Mol Sci 2023; 24:ijms24031826. [PMID: 36768149 PMCID: PMC9916069 DOI: 10.3390/ijms24031826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
Acute kidney injury (AKI) is a syndrome of sudden renal excretory dysfunction with severe health consequences. AKI etiology influences prognosis, with pre-renal showing a more favorable evolution than intrinsic AKI. Because the international diagnostic criteria (i.e., based on plasma creatinine) provide no etiological distinction, anamnestic and additional biochemical criteria complement AKI diagnosis. Traditional, etiology-defining biochemical parameters, including the fractional excretion of sodium, the urinary-to-plasma creatinine ratio and the renal failure index are individually limited by confounding factors such as diuretics. To minimize distortion, we generated a composite biochemical criterion based on the congruency of at least two of the three biochemical ratios. Patients showing at least two ratios indicative of intrinsic AKI were classified within this category, and those with at least two pre-renal ratios were considered as pre-renal AKI patients. In this study, we demonstrate that the identification of intrinsic AKI by a collection of urinary injury biomarkers reflective of tubular damage, including NGAL and KIM-1, more closely and robustly coincide with the biochemical than with the anamnestic classification. Because there is no gold standard method for the etiological classification of AKI, the mutual reinforcement provided by the biochemical criterion and urinary biomarkers supports an etiological diagnosis based on objective diagnostic parameters.
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16
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Emuron D, Thomas K, Mullane R. The Nutritional Risk Index as a Predictor of 90-Day Dialysis Dependence After Acute Renal Failure: A Pilot Study. J Ren Nutr 2023; 33:29-34. [PMID: 35447334 DOI: 10.1053/j.jrn.2022.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 03/28/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE Return of sufficient renal function to discontinue dialysis following acute renal failure is an important clinical and patient-oriented outcome. Our study sought to develop a model using the Nutritional Risk Index (NRI) to predict 90-day dialysis dependence. METHODS We retrospectively analyzed 77 patients with acute renal failure admitted to a single university medical center's intensive care units between January 2015 and January 2019 with the need for continuous renal replacement therapy. We assessed the predictive ability of the NRI for 90-day dialysis dependence using age, serum total protein, number of vasopressor days, baseline predialysis estimated glomerular filtration rate (eGFR), and Sequential Organ Failure Assessment (SOFA) score as covariates. RESULTS Of the analytic group, 20 (25.9%) had severe nutritional risk, and 16 (20.8%) recovered from acute renal failure at 90 days. The mean age was 57.1 years. The clinical model comprising the NRI, age, serum total protein, number of vasopressor days, SOFA score, and baseline predialysis eGFR had an area under the curve (AUC) of 0.89 (95% confidence interval [CI], 0.81-0.97), sensitivity 56.3%, and specificity 95%. Exclusion of baseline predialysis eGFR and SOFA score did not significantly decrease model discrimination, AUC 0.87 (95% CI, 0.78-0.97). The AUC was least when serum total protein was dropped from the final model, 0.79 (95% CI, 0.66-0.92). CONCLUSIONS The NRI when used together with other clinical parameters, including serum total protein, may improve the accuracy of predicting renal recovery and independence from dialysis at 90 days.
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Affiliation(s)
- Dennis Emuron
- Fellow, Division of Nephrology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kaleb Thomas
- Resident, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ryan Mullane
- Assistant Professor, Division of Nephrology, University of Nebraska Medical Center, Omaha, Nebraska.
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17
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Kompotiatis P, Shawwa K, Jentzer JC, Wiley BM, Kashani KB. Echocardiographic parameters and hemodynamic instability at the initiation of continuous kidney replacement therapy. J Nephrol 2023; 36:173-181. [PMID: 35849262 DOI: 10.1007/s40620-022-01400-2] [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: 04/27/2022] [Accepted: 07/06/2022] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Investigate the association of echocardiographic parameters with hemodynamic instability after initiating continuous kidney replacement therapy (CKRT) in a cohort of intensive care unit (ICU) patients requiring CKRT. METHODS Historical cohort study of consecutive adults admitted to the ICU at a tertiary care hospital from December 2006 through November 2015 who underwent CKRT and had an echocardiogram done within seven days before CKRT initiation. The primary outcome was hypotension within one hour of CKRT initiation. RESULTS We included 980 patients, 804 (82%) with acute kidney injury (AKI) and 176 (18%) with end-stage kidney disease (ESKD). Median patient age was 63 (± 14) years, and median Sequential Organ Failure Assessment (SOFA) score on the day of CKRT initiation was 12 (IQR 10-14). Multivariable analysis showed that Left (OR 2.01, 95% CI 1.04-3.86), and Right (OR 1.5, 95% CI 1.04-2.25) moderate and severe ventricular enlargement, Vasoactive-Inotropic Score (VIS) one hour before CKRT initiation (OR 1.18 per 10 units increase, 95% CI 1.09-1.28) and high bicarbonate fluid replacement (OR 2.52, 95% CI 1.01-6.2) were associated with hypotension after CKRT initiation. CONCLUSION Right and left ventricular enlargement are risk factors associated with hypotension after CKRT initiation.
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Affiliation(s)
- Panagiotis Kompotiatis
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Khaled Shawwa
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Jacob C Jentzer
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Brandon M Wiley
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Kianoush B Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
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18
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Karoli R. “Unconventional” Causes of Acute Kidney Injury: A Critical Nuance of Interpretation and Intervention. JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2022; 70:11-12. [DOI: 10.5005/japi-11001-0093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Association of Intradialytic Hypotension and Ultrafiltration with AKI-D Outcomes in the Outpatient Dialysis Setting. J Clin Med 2022; 11:jcm11113147. [PMID: 35683534 PMCID: PMC9181220 DOI: 10.3390/jcm11113147] [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: 04/10/2022] [Revised: 05/21/2022] [Accepted: 05/29/2022] [Indexed: 02/01/2023] Open
Abstract
Identifying modifiable predictors of outcomes for cases of acute kidney injury requiring hemodialysis (AKI-D) will allow better care of patients with AKI-D. All patients with AKI-D discharged to University of Virginia (UVA) outpatient HD units between 1 January 2017 to 31 December 2019 (n = 273) were followed- for up to six months. Dialysis-related parameters were measured during the first 4 weeks of outpatient HD to test the hypothesis that modifiable factors during dialysis are associated with AKI-D outcomes of recovery, End Stage Kidney Disease (ESKD), or death. Patients were 42% female, 67% Caucasian, with mean age 62.8 ± 15.4 years. Median number of dialysis sessions was 11 (6–15), lasting 3.6 ± 0.6 h. At 90 days after starting outpatient HD, 45% recovered, 45% were declared ESKD and 9.9% died, with no significant changes noted between three and six months. Patients who recovered, died or were declared ESKD experienced an average of 9, 10 and 16 intradialytic hypotensive (IDH) episodes, respectively. More frequent IDH episodes were associated with increased risk of ESKD (p = 0.01). A one liter increment in net ultrafiltration was associated with 54% increased ratio of ESKD (p = 0.048). Optimizing dialysis prescription to decrease frequency of IDH episodes and minimize UF, and close monitoring of outpatient dialysis for patients with AKI-D, are crucial and may improve outcomes for these patients.
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20
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Schiffl H. Anticipation of recovery of native renal function and liberation from renal replacement therapy in critically ill patients with severe acute kidney injury. RENAL REPLACEMENT THERAPY 2022. [DOI: 10.1186/s41100-022-00395-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Renal replacement therapy (RRT) is used to manage critically ill patients with severe acute kidney injury (AKI-D), and it is undoubtedly life-sustaining for most patients. However, the prolonged unnecessary use of these techniques may be harmful. At present, no consensus guidelines provide specific recommendations for clinicians on when (optimal timing of discontinuation) and how (liberation or weaning) to stop RRT in intensive care unit (ICU) patients with recovering native kidney function.
Methods and results
Numerous variables such as clinical parameters, classical surrogate markers for glomerular filtration rate, novel biomarkers of kidney function and damage, and new imaging techniques in AKI-D have been described to predict successful discontinuation of RRT. Most available studies are limited by study design, heterogeneity of variable assessment and thresholds of biomarkers, and lack of prospective validation. At present, the decision on discontinuation of RRT in ICU patients is based on three clinical scenarios: (a) intrinsic kidney function (defined as spontaneous urine output > 500 ml/24 h, timed creatinine clearance > 15 to 20 ml/min) has adequately improved to match the demands and continued RRT is no longer consistent with goals of care (transition to intermittent RRT); (b) the acute illness that prompted RRT has improved; (c) the clinical practice of switching haemodynamic stable patients with persistent AKI-D from continuous RRTs to intermittent RRTs is variable, but de-escalation of RRT (frequency, dose) may facilitate mobilization and discharge of ICU patients.
Conclusions
The predictive ability of novel kidney biomarkers, surrogate markers of kidney function, and direct measurements of kidney function should be evaluated in future studies.
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Acute Kidney Injury: Biomarker-Guided Diagnosis and Management. Medicina (B Aires) 2022; 58:medicina58030340. [PMID: 35334515 PMCID: PMC8953384 DOI: 10.3390/medicina58030340] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/23/2022] Open
Abstract
Acute kidney injury (AKI) is a common clinical syndrome that is characterized by abnormal renal function and structure. The Kidney Disease: Improving Global Outcomes (KDIGO) Controversies Conference in 2019 reviewed the stages of AKI and the definitions of AKI-related terminologies, and discussed the advances in the last decade. Along with serum creatinine level and urine output, more accurate novel biomarkers for predicting AKI are being applied for the early detection of renal dysfunction. A literature search was conducted in PubMed, Scopus, Medline, and ClinicalTrials.gov using the terms AKI and biomarker, combined with diagnosis, management, or prognosis. Because of the large volume of data (160 articles) published between 2005 and 2022, representative literature was chosen. A number of studies have demonstrated that new biomarkers are more sensitive in detecting AKI in certain populations than serum creatinine and urine output according to the recommendations from the Acute Disease Quality Initiative Consensus Conference. To be specific, there is a persistently unresolved need for earlier detection of patients with AKI before AKI progresses to a need for renal replacement therapy. Biomarker-guided management may help to identify a high-risk group of patients in progression to severe AKI, and decide the initiation time to renal replacement therapy and optimal follow-up period. However, limitations such as biased data to certain studied populations and absence of cutoff values need to be solved for worldwide clinical use of biomarkers in the future. Here, we provide a comprehensive review of biomarker-based AKI diagnosis and management and highlight recent developments.
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22
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Fabrizi F, Donato MF, Cerutti R, Invernizzi F, Porata G, Frontini G, Raffiotta F, De Feo T, Alfieri CM, Lampertico P, Rossi G, Messa P. Acute kidney injury and chronic kidney disease after liver transplant: A retrospective observational study. Nefrologia 2022; 42:41-49. [PMID: 36153898 DOI: 10.1016/j.nefroe.2021.01.003] [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: 08/30/2020] [Accepted: 01/24/2021] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND AND RATIONALE Chronic kidney disease remains an important risk factor for morbidity and mortality among LT recipients, but its exact incidence and risk factors are still unclear. MATERIAL AND METHODS We carried out a retrospective cohort study of consecutive adults who underwent liver transplant (January 2009-December 2018) and were followed (at least 6 months) at our institution. CKD was defined following the Kidney Disease: Improving Global Outcomes (KDIGO) 2012 Clinical Practice Guidelines. Long-term kidney function was classified into 4 groups: no CKD (eGFR, ≥60mL/min/1.73m2), mild CKD (eGFR, 30-59mL/min/1.73m2), severe CKD (eGFR, 15-29mL/min/1.73m2), and end-stage renal disease (ESRD). RESULTS We enrolled 410 patients followed for 53.2±32.6 months. 39 had CKD at baseline, and 95 developed de novo CKD over the observation period. There were 184 (44.9%) anti-HCV positive, 47 (11.5%) HBsAg positive, and 33 (8.1%) HBV/HDV positive recipients. Recipient risk factors for baseline CKD were advanced age (P=0.044), raised levels of serum uric acid (P<0.0001), and insulin dependent DM (P=0.0034). Early post-transplant AKI was common (n=95); logistic regression analysis found that baseline serum creatinine was an independent predictor of early post-LT AKI (P=0.0154). According to our Cox proportional hazards model, recipient risk factors for de novo CKD included aging (P<0.0001), early post-transplant AKI (P=0.007), and baseline serum creatinine (P=0.0002). At the end of follow-up, there were 116 LT recipients with CKD - 109 (93.9%) and 7 (6.1%) had stage 3 and advanced CKD, respectively. Only two of them are undergoing long-term dialysis. CONCLUSION The incidence of CKD was high in our cohort of LT recipients, but only a slight decline in kidney function over time was recorded. Prevention of post-transplant AKI will improve kidney function in the long run. We need more studies to analyze the function of kidneys among LT recipients over extended follow-ups and their impact on mortality.
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Affiliation(s)
- Fabrizio Fabrizi
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy.
| | - Maria F Donato
- Division of Gastroenterology and Hepatology, Maggiore Policlinico Hospital and Ca' Granda IRCCS Foundation , Milano, Italy
| | - Roberta Cerutti
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Federica Invernizzi
- Division of Gastroenterology and Hepatology, Maggiore Policlinico Hospital and Ca' Granda IRCCS Foundation , Milano, Italy
| | - Giulia Porata
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Giulia Frontini
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Francesca Raffiotta
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Tullia De Feo
- North Italy Transplant Program, Organ and Tissue Transplantation Immunology, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Carlo M Alfieri
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy; University School of Medicine, Milano, Italy
| | - Pietro Lampertico
- Division of Gastroenterology and Hepatology, Maggiore Policlinico Hospital and Ca' Granda IRCCS Foundation , Milano, Italy; University School of Medicine, Milano, Italy
| | - Giorgio Rossi
- Hepatobiliary and Liver Transplant Unit, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy; University School of Medicine, Milano, Italy
| | - Piergiorgio Messa
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy; University School of Medicine, Milano, Italy
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Wee HN, Liu JJ, Ching J, Kovalik JP, Lim SC. The Kynurenine Pathway in Acute Kidney Injury and Chronic Kidney Disease. Am J Nephrol 2021; 52:771-787. [PMID: 34753140 PMCID: PMC8743908 DOI: 10.1159/000519811] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/15/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND The kynurenine pathway (KP) is the major catabolic pathway for tryptophan degradation. The KP plays an important role as the sole de novo nicotinamide adenine dinucleotide (NAD+) biosynthetic pathway in normal human physiology and functions as a counter-regulatory mechanism to mitigate immune responses during inflammation. Although the KP has been implicated in a variety of disorders including Huntington's disease, seizures, cardiovascular disease, and osteoporosis, its role in renal diseases is seldom discussed. SUMMARY This review summarizes the roles of the KP and its metabolites in acute kidney injury (AKI) and chronic kidney disease (CKD) based on current literature evidence. Metabolomics studies demonstrated that the KP metabolites were significantly altered in patients and animal models with AKI or CKD. The diagnostic and prognostic values of the KP metabolites in AKI and CKD were highlighted in cross-sectional and longitudinal human observational studies. The biological impact of the KP on the pathophysiology of AKI and CKD has been studied in experimental models of different etiologies. In particular, the activation of the KP was found to confer protection in animal models of glomerulonephritis, and its immunomodulatory mechanism may involve the regulation of T cell subsets such as Th17 and regulatory T cells. Manipulation of the KP to increase NAD+ production or diversion toward specific KP metabolites was also found to be beneficial in animal models of AKI. Key Messages: KP metabolites are reported to be dysregulated in human observational and animal experimental studies of AKI and CKD. In AKI, the magnitude and direction of changes in the KP depend on the etiology of the damage. In CKD, KP metabolites are altered with the onset and progression of CKD all the way to advanced stages of the disease, including uremia and its related vascular complications. The activation of the KP and diversion to specific sub-branches are currently being explored as therapeutic strategies in these diseases, especially with regards to the immunomodulatory effects of certain KP metabolites. Further elucidation of the KP may hold promise for the development of biomarkers and targeted therapies for these kidney diseases.
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Affiliation(s)
| | - Jian-Jun Liu
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Jianhong Ching
- Duke-NUS Medical School, Singapore, Singapore
- KK Research Centre, KK Women's and Children's Hospital, Singapore, Singapore
| | | | - Su Chi Lim
- Clinical Research Unit, Khoo Teck Puat Hospital, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
- Diabetes Centre, Admiralty Medical Centre, Singapore, Singapore
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Liu C, Peng Z, Dong Y, Li Z, Song X, Liu X, Andrijasevic NM, Gajic O, Albright RC, Kashani KB. Continuous Renal Replacement Therapy Liberation and Outcomes of Critically Ill Patients With Acute Kidney Injury. Mayo Clin Proc 2021; 96:2757-2767. [PMID: 34686364 DOI: 10.1016/j.mayocp.2021.05.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 04/08/2021] [Accepted: 05/27/2021] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To examine the association between continuous renal replacement therapy (CRRT) liberation and clinical outcomes among patients with acute kidney injury (AKI) requiring CRRT. METHODS This single-center, retrospective cohort study included adult patients admitted to intensive care units with AKI and treated with CRRT from January 1, 2007, to May 4, 2018. Based on the survival and renal replacement therapy (RRT) status at 72 hours after the first CRRT liberation, we classified patients into liberated, reinstituted, and those who died. We observed patients for 90 days after CRRT initiation to compare the major adverse kidney events (MAKE90). RESULTS Of 1135 patients with AKI, 228 (20%), 437 (39%), and 470 (41%) were assigned to liberated, reinstituted, and nonsurvival groups, respectively. The MAKE90, mortality, and RRT independence rates of the cohort were 62% (707 cases), 59% (674 cases), and 40% (453 cases), respectively. Compared with reinstituted patients, the liberated group had a lower MAKE90 (29% vs 39%; P=.009) and higher RRT independence rate (73% vs 65%; P=.04) on day 90, but without significant difference in 90-day mortality (26% vs 33%; P=.05). After adjustments for confounders, successful CRRT liberation was not associated with lower MAKE90 (odds ratio, 0.71; 95% CI, 0.48 to 1.04; P=.08) but was independently associated with improved kidney recovery at 90-day follow-up (hazard ratio, 1.81; 95% CI, 1.41 to 2.32; P<.001). CONCLUSION Our study demonstrated a high occurrence of CRRT liberation failure and poor 90-day outcomes in a cohort of AKI patients treated with CRRT.
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Affiliation(s)
- Chang Liu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Zhiyong Peng
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yue Dong
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Zhuo Li
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Jacksonville, FL
| | - Xuan Song
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Xinyan Liu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN
| | | | - Ognjen Gajic
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Robert C Albright
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Kianoush B Kashani
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN.
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25
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Menez S, Parikh CR. Overview of acute kidney manifestations and management of patients with COVID-19. Am J Physiol Renal Physiol 2021; 321:F403-F410. [PMID: 34448642 DOI: 10.1152/ajprenal.00173.2021] [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] [Indexed: 01/11/2023] Open
Abstract
Since the start of the COVID-19 pandemic, several manifestations of kidney involvement associated with infection of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus have been described, including proteinuria, hematuria, and acute kidney injury. A growing body of literature has explored the risk factors and pathogenesis of COVID-19-associated acute kidney injury (AKI), including direct and indirect mechanisms, as well as early postdischarge outcomes that may result from various manifestations of kidney involvement. In this review, we explore the current state of knowledge of the epidemiology of COVID-19-associated AKI, potential mechanisms and pathogenesis of AKI, and various management strategies for patients in the acute setting. We highlight how kidney replacement therapy for patients with COVID-19-associated AKI has been affected by the increasing demand for dialysis and how the postacute management of patients, including outpatient follow-up, is vitally important. We also review what is presently known about long-term kidney outcomes after the initial recovery from COVID-19. We provide some guidance as to the management of patients hospitalized with COVID-19 who are at risk for AKI as well as for future clinical research in the setting of COVID-19 and the significance of early identification of patients at highest risk for adverse kidney outcomes.
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Affiliation(s)
- Steven Menez
- Division of Nephrology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Chirag R Parikh
- Division of Nephrology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
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26
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Vijayan A, Abdel-Rahman EM, Liu KD, Goldstein SL, Agarwal A, Okusa MD, Cerda J. Recovery after Critical Illness and Acute Kidney Injury. Clin J Am Soc Nephrol 2021; 16:1601-1609. [PMID: 34462285 PMCID: PMC8499012 DOI: 10.2215/cjn.19601220] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
AKI is a common complication in hospitalized and critically ill patients. Its incidence has steadily increased over the past decade. Whether transient or prolonged, AKI is an independent risk factor associated with poor short- and long-term outcomes, even if patients do not require KRT. Most patients with early AKI improve with conservative management; however, some will require dialysis for a few days, a few weeks, or even months. Approximately 10%-30% of AKI survivors may still need dialysis after hospital discharge. These patients have a higher associated risk of death, rehospitalization, recurrent AKI, and CKD, and a lower quality of life. Survivors of critical illness may also suffer from cognitive dysfunction, muscle weakness, prolonged ventilator dependence, malnutrition, infections, chronic pain, and poor wound healing. Collaboration and communication among nephrologists, primary care physicians, rehabilitation providers, physical therapists, nutritionists, nurses, pharmacists, and other members of the health care team are essential to create a holistic and patient-centric care plan for overall recovery. Integration of the patient and family members in health care decisions, and ongoing education throughout the process, are vital to improve patient well-being. From the nephrologist standpoint, assessing and promoting recovery of kidney function, and providing appropriate short- and long-term follow-up, are crucial to prevent rehospitalizations and to reduce complications. Return to baseline functional status is the ultimate goal for most patients, and dialysis independence is an important part of that goal. In this review, we seek to highlight the varying aspects and stages of recovery from AKI complicating critical illness, and propose viable strategies to promote recovery of kidney function and dialysis independence. We also emphasize the need for ongoing research and multidisciplinary collaboration to improve outcomes in this vulnerable population.
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Affiliation(s)
- Anitha Vijayan
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Emaad M. Abdel-Rahman
- Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia
| | - Kathleen D. Liu
- Division of Nephrology, Department of Medicine and Critical Care Medicine, Department of Anesthesia, University of California, San Francisco, San Francisco, California
| | - Stuart L. Goldstein
- Division of Nephrology and Hypertension, University of Cincinnati College of Medicine and Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Anupam Agarwal
- Division of Nephrology, Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Mark D. Okusa
- Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia
| | - Jorge Cerda
- Department of Medicine, Albany Medical College, Albany, New York
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27
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Predicting successful continuous renal replacement therapy liberation in critically ill patients with acute kidney injury. J Crit Care 2021; 66:6-13. [PMID: 34358675 DOI: 10.1016/j.jcrc.2021.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 12/23/2022]
Abstract
PURPOSE No standardized criteria for continuous renal replacement therapy (CRRT) liberation have been established. We sought to develop and internally validate prediction models for successful CRRT liberation in critically ill patients with acute kidney injury (AKI). MATERIALS AND METHODS This single-center, retrospective cohort study included adult patients admitted to intensive care units (ICUs) with AKI and treated with CRRT from January 1, 2007, to May 4, 2018, at a tertiary referral hospital. The cohort was randomly divided into derivation and validation sets. The outcomes were successful CRRT liberation, defined as renal replacement therapy (RRT)-free survival within 72 h after the liberation and hospital discharge. Multivariate logistic regression models were developed and internally validated. RESULTS Of 1135 AKI patients requiring CRRT, successful CRRT liberation and RRT-free survival at hospital discharge were observed in 228 (20%) and 395 (35%) individuals, respectively. The independent predictors included mean hourly urine output within 12 h before liberation, mean serum creatinine value within 24 h before liberation, cumulative fluid balance from ICU admission to liberation, CRRT duration before liberation, and the requirement of vasoactive agents within 24 h before liberation. The models demonstrated good discrimination (AUROC, 0.76 and 0.78; positive predictive value, 36% and 48%; negative predictive value, 92% and 94%; respectively) and calibration in the validation set. CONCLUSIONS These validated models could assist the decision-making related to the CRRT liberation in critically ill patients with AKI.
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28
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Fabrizi F, Donato MF, Cerutti R, Invernizzi F, Porata G, Frontini G, Raffiotta F, De Feo T, Alfieri CM, Lampertico P, Rossi G, Messa P. Acute kidney injury and chronic kidney disease after liver transplant: A retrospective observational study. Nefrologia 2021; 42:S0211-6995(21)00092-8. [PMID: 34112530 DOI: 10.1016/j.nefro.2021.01.009] [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: 08/30/2020] [Revised: 10/26/2020] [Accepted: 01/24/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND AND RATIONALE Chronic kidney disease remains an important risk factor for morbidity and mortality among LT recipients, but its exact incidence and risk factors are still unclear. MATERIAL AND METHODS We carried out a retrospective cohort study of consecutive adults who underwent liver transplant (January 2009-December 2018) and were followed (at least 6 months) at our institution. CKD was defined following the Kidney Disease: Improving Global Outcomes (KDIGO) 2012 Clinical Practice Guidelines. Long-term kidney function was classified into 4 groups: no CKD (eGFR, ≥60mL/min/1.73m2), mild CKD (eGFR, 30-59mL/min/1.73m2), severe CKD (eGFR, 15-29mL/min/1.73m2), and end-stage renal disease (ESRD). RESULTS We enrolled 410 patients followed for 53.2±32.6 months. 39 had CKD at baseline, and 95 developed de novo CKD over the observation period. There were 184 (44.9%) anti-HCV positive, 47 (11.5%) HBsAg positive, and 33 (8.1%) HBV/HDV positive recipients. Recipient risk factors for baseline CKD were advanced age (P=0.044), raised levels of serum uric acid (P<0.0001), and insulin dependent DM (P=0.0034). Early post-transplant AKI was common (n=95); logistic regression analysis found that baseline serum creatinine was an independent predictor of early post-LT AKI (P=0.0154). According to our Cox proportional hazards model, recipient risk factors for de novo CKD included aging (P<0.0001), early post-transplant AKI (P=0.007), and baseline serum creatinine (P=0.0002). At the end of follow-up, there were 116 LT recipients with CKD - 109 (93.9%) and 7 (6.1%) had stage 3 and advanced CKD, respectively. Only two of them are undergoing long-term dialysis. CONCLUSION The incidence of CKD was high in our cohort of LT recipients, but only a slight decline in kidney function over time was recorded. Prevention of post-transplant AKI will improve kidney function in the long run. We need more studies to analyze the function of kidneys among LT recipients over extended follow-ups and their impact on mortality.
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Affiliation(s)
- Fabrizio Fabrizi
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy.
| | - Maria F Donato
- Division of Gastroenterology and Hepatology, Maggiore Policlinico Hospital and Ca' Granda IRCCS Foundation , Milano, Italy
| | - Roberta Cerutti
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Federica Invernizzi
- Division of Gastroenterology and Hepatology, Maggiore Policlinico Hospital and Ca' Granda IRCCS Foundation , Milano, Italy
| | - Giulia Porata
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Giulia Frontini
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Francesca Raffiotta
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Tullia De Feo
- North Italy Transplant Program, Organ and Tissue Transplantation Immunology, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy
| | - Carlo M Alfieri
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy; University School of Medicine, Milano, Italy
| | - Pietro Lampertico
- Division of Gastroenterology and Hepatology, Maggiore Policlinico Hospital and Ca' Granda IRCCS Foundation , Milano, Italy; University School of Medicine, Milano, Italy
| | - Giorgio Rossi
- Hepatobiliary and Liver Transplant Unit, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy; University School of Medicine, Milano, Italy
| | - Piergiorgio Messa
- Division of Nephrology, Dialysis and Renal Transplantation, Maggiore Policlinico Hospital and Cà Granda IRCCS Foundation, Milano, Italy; University School of Medicine, Milano, Italy
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29
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Tain YL, Kuo HC, Hsu CN. Changing trends in dialysis modalities utilization and mortality in children, adolescents and young adults with acute kidney injury, 2010-2017. Sci Rep 2021; 11:11887. [PMID: 34088938 PMCID: PMC8178371 DOI: 10.1038/s41598-021-91171-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/07/2021] [Indexed: 11/09/2022] Open
Abstract
The aim of the study was to assess trends in the relative use of dialysis modalities in the hospital-based pediatric cohort and to determine risk factors associated with in-hospital morality among pediatric patients receiving dialysis for acute kidney injury (AKI). Patients aged < 20 years who received dialysis between 2010 and 2017 were identified from electronic health records databases of a Taiwan's healthcare delivery system. The annual uses of intermittent hemodialysis (HD), continuous and automated peritoneal dialysis (PD) and continuous kidney replacement therapy (CKRT) were assessed using Cochran-Armitage Tests for trend. Among patients who received their first dialysis as inpatients for AKI, a multivariate logistic regression model was employed to assess mortality risks associated with dialysis modalities, patient demographics, complexity of baseline chronic disease, and healthcare service use during their hospital stays. Kidney dialysis was performed 37.9 per patient per year over the study period. Intermittent hemodialysis (HD) (73.3%) was the most frequently used dialysis modality. In the inpatient setting, the relative annual use of CKRT increased over the study period, while HD use concomitantly declined (P < 0.0001). The overall in-hospital mortality rate after dialysis for AKI was 33.6%, which remained steady over time (P = 0.2411). Patients aged < 2 years [adjusted odds ratio: (aOR) 3.36; 95% confidence interval (CI) 1.34-8.93] and greater vasoactive regimen use (aOR: 17.1; 95% CI: 5.3-55.21) were significantly associated with dialysis-related mortality. Overall treatment modality used for dialysis in pediatric patients increased slowly in the study period, and HD and CRKT modality uses largely evolved in the inpatient setting. Younger ages and use of more vasoactive medication regimens were independently associated with increased early mortality in patients on AKI-dialysis.
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Affiliation(s)
- You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung, 833, Taiwan
| | - Hsiao-Ching Kuo
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833, Taiwan
| | - Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833, Taiwan.
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
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Dahlerus C, Segal JH, He K, Wu W, Chen S, Shearon TH, Sun Y, Pearson A, Li X, Messana JM. Acute Kidney Injury Requiring Dialysis and Incident Dialysis Patient Outcomes in US Outpatient Dialysis Facilities. Clin J Am Soc Nephrol 2021; 16:853-861. [PMID: 34045300 PMCID: PMC8216606 DOI: 10.2215/cjn.18311120] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/23/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVES About 30% of patients with AKI may require ongoing dialysis in the outpatient setting after hospital discharge. A 2017 Centers for Medicare & Medicaid Services policy change allows Medicare beneficiaries with AKI requiring dialysis to receive outpatient treatment in dialysis facilities. Outcomes for these patients have not been reported. We compare patient characteristics and mortality among patients with AKI requiring dialysis and patients without AKI requiring incident dialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We used a retrospective cohort design with 2017 Medicare claims to follow outpatients with AKI requiring dialysis and patients without AKI requiring incident dialysis up to 365 days. Outcomes are unadjusted and adjusted mortality using Kaplan-Meier estimation for unadjusted survival probability, Poisson regression for monthly mortality, and Cox proportional hazards modeling for adjusted mortality. RESULTS In total, 10,821 of 401,973 (3%) Medicare patients requiring dialysis had at least one AKI claim, and 52,626 patients were Medicare patients without AKI requiring incident dialysis. Patients with AKI requiring dialysis were more likely to be White (76% versus 70%), non-Hispanic (92% versus 87%), and age 60 or older (82% versus 72%) compared with patients without AKI requiring incident dialysis. Unadjusted mortality was markedly higher for patients with AKI requiring dialysis compared with patients without AKI requiring incident dialysis. Adjusted mortality differences between both cohorts persisted through month 4 of the follow-up period (all P=0.01), then, they declined and were no longer statistically significant. Adjusted monthly mortality stratified by Black and other race between patients with AKI requiring dialysis and patients without AKI requiring incident dialysis was lower throughout month 4 (1.5 versus 0.60, 1.20 versus 0.84, 1.00 versus 0.80, and 0.95 versus 0.74; all P<0.001), which persisted through month 7. Overall adjusted mortality risk was 22% higher for patients with AKI requiring dialysis (1.22; 95% confidence interval, 1.17 to 1.27). CONCLUSIONS In fully adjusted analyses, patients with AKI requiring dialysis had higher early mortality compared with patients without AKI requiring incident dialysis, but these differences declined after several months. Differences were also observed by age, race, and ethnicity within both patient cohorts.
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Affiliation(s)
- Claudia Dahlerus
- Division of Nephrology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan,Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan
| | - Jonathan H. Segal
- Division of Nephrology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan,Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan
| | - Kevin He
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan,Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Wenbo Wu
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan,Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Shu Chen
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan,Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Tempie H. Shearon
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan,Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Yating Sun
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan,Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Aaron Pearson
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan,Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Xiang Li
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan,Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Joseph M. Messana
- Division of Nephrology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan,Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, Michigan
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Hu P, Song L, Liang H, Chen Y, Wu Y, Zhang L, Li Z, Fu L, Tao Y, Liu S, Ye Z, Fu X, Liang X. Prospective model for predicting renal recovery in cardiac surgery patients with acute kidney injury requiring renal replacement therapy. Nephrology (Carlton) 2021; 26:586-593. [PMID: 33742730 PMCID: PMC9292395 DOI: 10.1111/nep.13878] [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] [Received: 11/11/2020] [Revised: 02/21/2021] [Accepted: 03/12/2021] [Indexed: 11/30/2022]
Abstract
Aim To develop a model for predicting renal recovery in cardiac surgery patients with acute kidney injury (AKI) requiring renal replacement therapy (RRT). Methods Data from a prospective randomized controlled trial, conducted in a tertiary hospital to compare the survival effect of two dosages of hemofiltration for continuous RRT in cardiac surgery patients between 20 March 2012 and 9 August 2015, were used to develop the model. The outcome was renal recovery defined as alive and dialysis‐free 90 days after RRT initiation. Multivariate logistic regression with a stepwise backward selection of variables based on Akaike Information Criterion was applied to develop the model, which was internally validated using bootstrapping. Model discrimination, calibration and clinical value were assessed using the concordance index (C‐Index), calibration plots and decision curve analysis, respectively. Results Totally, 211 patients with AKI requiring RRT (66.8% male) with median age of 57 years were included. The incidence of renal recovery was 33.2% (n = 70). The model included six variables: body mass index stratification, baseline estimated glomerular filtration rate, hypertension, sepsis, mean arterial pressure and mechanical ventilation. The C‐Index for this model was 0.807 (95% CI, 0.744–0.870). After correction by the bootstrap, the C‐Index was 0.780 (95% CI, 0.720–0.845). The calibration plots indicated good consistency between actual observations and model prediction of renal recovery. Decision curve analysis demonstrated the model was clinical usefulness. Conclusion We developed and validated a model to predict the chance of renal recovery in cardiac surgery patients with AKI requiring RRT. This validated model based on prospective cohort data to predict the chance of renal recovery in cardiac surgery patients, especially after acute dialysis provides values to alert clinical decision and information for post AKI care.
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Affiliation(s)
- Penghua Hu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Division of Nephrology, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Li Song
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Huaban Liang
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yuanhan Chen
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yanhua Wu
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Li Zhang
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhilian Li
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Lei Fu
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yiming Tao
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shuangxin Liu
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhiming Ye
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xia Fu
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xinling Liang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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Stevens JS, Velez JCQ, Mohan S. Continuous renal replacement therapy and the COVID pandemic. Semin Dial 2021; 34:561-566. [PMID: 33705575 PMCID: PMC8242500 DOI: 10.1111/sdi.12962] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/06/2021] [Accepted: 02/11/2021] [Indexed: 01/08/2023]
Abstract
Severe COVID‐19 illness and the consequent cytokine storm and vasodilatory shock commonly lead to ischemic acute kidney injury (AKI). The need for renal replacement therapies (RRTs) in those with the most severe forms of AKI is considerable and risks overwhelming health‐care systems at the peak of a surge. We detail the challenges and considerations involved in the preparation of a disaster response plan in situations such as the COVID‐19 pandemic, which dramatically increase demand for nephrology services. Taking careful inventory of all aspects of an RRT program (personnel, consumables, and machines) before a surge in RRT arises and developing disaster contingency protocol anticoagulation and for shared RRT models when absolutely necessary are paramount to a successful response to such a disaster.
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Affiliation(s)
- Jacob S Stevens
- Division of Nephrology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.,Renal Epidemiology Group, Columbia University, New York, NY, USA
| | - Juan Carlos Q Velez
- Department of Nephrology, Ochsner Health System, New Orleans, LA, USA.,Ochsner Clinical School, The University of Queensland (Brisbane, New Orleans, LA, USA
| | - Sumit Mohan
- Division of Nephrology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.,Renal Epidemiology Group, Columbia University, New York, NY, USA.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
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33
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Abdel-Rahman EM, Turgut F, Gautam JK, Gautam SC. Determinants of Outcomes of Acute Kidney Injury: Clinical Predictors and Beyond. J Clin Med 2021; 10:jcm10061175. [PMID: 33799741 PMCID: PMC7999959 DOI: 10.3390/jcm10061175] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 12/24/2022] Open
Abstract
Acute kidney injury (AKI) is a common clinical syndrome characterized by rapid impairment of kidney function. The incidence of AKI and its severe form AKI requiring dialysis (AKI-D) has been increasing over the years. AKI etiology may be multifactorial and is substantially associated with increased morbidity and mortality. The outcome of AKI-D can vary from partial or complete recovery to transitioning to chronic kidney disease, end stage kidney disease, or even death. Predicting outcomes of patients with AKI is crucial as it may allow clinicians to guide policy regarding adequate management of this problem and offer the best long-term options to their patients in advance. In this manuscript, we will review the current evidence regarding the determinants of AKI outcomes, focusing on AKI-D.
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Affiliation(s)
- Emaad M. Abdel-Rahman
- Division of Nephrology, University of Virginia, Charlottesville, VA 22908, USA;
- Correspondence: ; Tel.: +1-(434)-243-2671
| | - Faruk Turgut
- Internal Medicine/Nephrology, Faculty of Medicine, Mustafa Kemal University, Antakya/Hatay 31100, Turkey;
| | - Jitendra K. Gautam
- Division of Nephrology, University of Virginia, Charlottesville, VA 22908, USA;
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Ku E, Hsu RK, Johansen KL, McCulloch CE, Mitsnefes M, Grimes BA, Liu KD. Recovery of kidney function after dialysis initiation in children and adults in the US: A retrospective study of United States Renal Data System data. PLoS Med 2021; 18:e1003546. [PMID: 33606673 PMCID: PMC7935284 DOI: 10.1371/journal.pmed.1003546] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/05/2021] [Accepted: 01/22/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Little is known about factors associated with recovery of kidney function-and return to dialysis independence-or temporal trends in recovery after starting outpatient dialysis in the United States. Understanding the characteristics of individuals who may have the potential to recover kidney function may promote better recognition of such events. The goal of this study was to determine factors associated with recovery of kidney function in children compared with adults starting dialysis in the US. METHODS AND FINDINGS We determined factors associated with recovery of kidney function-defined as survival and discontinuation of dialysis for ≥90-day period-in children versus adults who started maintenance dialysis between 1996 and 2015 according to the United States Renal Data System (USRDS) followed through 2016 in a retrospective cohort study. We also examined temporal trends in recovery rates over the last 2 decades in this cohort. Among 1,968,253 individuals included for study, the mean age was 62.6 ± 15.8 years, and 44% were female. Overall, 4% of adults (83,302/1,953,881) and 4% of children (547/14,372) starting dialysis in the outpatient setting recovered kidney function within 1 year. Among those who recovered, the median time to recovery was 73 days (interquartile range [IQR] 43-131) in adults and 100 days (IQR 56-189) in children. Accounting for the competing risk of death, children were less likely to recover kidney function compared with adults (sub-hazard ratio [sub-HR] 0.81; 95% CI 0.74-0.89, p-value <0.001; point estimates <1 indicating increased risk for a negative outcome). Non-Hispanic black (NHB) adults were less likely to recover compared with non-Hispanic white (NHW) adults, but these racial differences were not observed in children. Of note, a steady increase in the incidence of recovery of kidney function was noted initially in adults and children between 1996 and 2010, but this trend declined thereafter. The diagnoses associated with the highest recovery rates of recovery were acute tubular necrosis (ATN) and acute interstitial nephritis (AIN) in both adults and children, where 25%-40% of patients recovered kidney function depending on the calendar year of dialysis initiation. Limitations to our study include the potential for residual confounding to be present given the observational nature of our data. CONCLUSIONS In this study, we observed that discontinuation of outpatient dialysis due to recovery occurred in 4% of patients with end-stage kidney disease (ESKD) and was more common among those with ATN or AIN as the cause of their kidney disease. While recovery rates rose initially, they declined starting in 2010. Additional studies are needed to understand how to best recognize and promote recovery in patients whose potential to discontinue dialysis is high in the outpatient setting.
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Affiliation(s)
- Elaine Ku
- University of California San Francisco, Division of Nephrology, Department of Medicine, San Francisco, California, United States of America
- University of California San Francisco, Division of Pediatric Nephrology, Department of Pediatrics, San Francisco, California, United States of America
- University of California San Francisco, Department of Epidemiology and Biostatistics, San Francisco, California, United States of America
- * E-mail:
| | - Raymond K. Hsu
- University of California San Francisco, Division of Nephrology, Department of Medicine, San Francisco, California, United States of America
| | - Kirsten L. Johansen
- Hennepin Healthcare and University of Minnesota, Department of Medicine, Division of Nephrology, Minneapolis, Minnesota, United States of America
| | - Charles E. McCulloch
- University of California San Francisco, Department of Epidemiology and Biostatistics, San Francisco, California, United States of America
| | - Mark Mitsnefes
- Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, Division of Pediatric Nephrology and Hypertension, Cincinnati, Ohio, United States of America
| | - Barbara A. Grimes
- University of California San Francisco, Department of Epidemiology and Biostatistics, San Francisco, California, United States of America
| | - Kathleen D. Liu
- University of California San Francisco, Division of Nephrology, Department of Medicine, San Francisco, California, United States of America
- University of California San Francisco, Department of Anesthesia and Perioperative Care, San Francisco, California, United States of America
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Ortiz-Soriano V, Butler CR, Levy M, Huen SC, Castaneda JL, Sakhuja A, Basu RK, Liu KD, Cerda J, Neyra JA. Survey of Current Practices of Outpatient Hemodialysis for AKI Patients. Kidney Int Rep 2021; 6:1156-1160. [PMID: 33912764 PMCID: PMC8071612 DOI: 10.1016/j.ekir.2021.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/01/2020] [Accepted: 01/04/2021] [Indexed: 11/30/2022] Open
Affiliation(s)
- Victor Ortiz-Soriano
- Department of Internal Medicine, Division of Nephrology, Bone and Mineral Metabolism, University of Kentucky Medical Center, Lexington, Kentucky, USA
| | - Catherine R Butler
- Department of Medicine, Division of Nephrology, University of Washington and Veterans Affairs Health Services Research & Development, Seattle-Denver Center of Innovation, Seattle, Washington, USA
| | - Marla Levy
- Department of Medicine, Cardiovascular Research Institute, University of California, San Francisco, California, USA
| | - Sarah C Huen
- Department of Internal Medicine, Division of Nephrology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Jorge L Castaneda
- Department of Emergency Medicine, Division of Toxicology, Banner University Medical Center, Phoenix, Arizona, USA
| | - Ankit Sakhuja
- Department of Cardiovascular and Thoracic Surgery, Division of Cardiovascular Critical Care, West Virginia University, Morgantown, West Virginia, USA
| | - Rajit K Basu
- Department of Pediatrics, Division of Critical Care Medicine, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Kathleen D Liu
- Department of Medicine, Cardiovascular Research Institute, University of California, San Francisco, California, USA
| | - Jorge Cerda
- Department of Medicine, St Peter's Hospital Healthcare Partners, Albany, New York, USA
| | - Javier A Neyra
- Department of Internal Medicine, Division of Nephrology, Bone and Mineral Metabolism, University of Kentucky Medical Center, Lexington, Kentucky, USA
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Kanduri SR, Kovvuru K, Cheungpasitporn W, Thongprayoon C, Bathini T, Garla V, Vailta P, Vallabhajosyula S, Medaura J, Kashani K. Kidney Recovery From Acute Kidney Injury After Hematopoietic Stem Cell Transplant: A Systematic Review and Meta-Analysis. Cureus 2021; 13:e12418. [PMID: 33659105 PMCID: PMC7847721 DOI: 10.7759/cureus.12418] [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: 12/16/2022] Open
Abstract
Patients with the recovery of kidney function after an episode of acute kidney injury (AKI) have better outcomes compared to those without recovery. The current systematic review is conducted to assess the rates of kidney function recovery among patients with AKI or severe AKI requiring kidney replacement therapy (KRT) within 100 days after hematopoietic stem cell transplant (HSCT). Methods The Ovid MEDLINE, EMBASE, and Cochrane databases were systemically searched from database inceptions through August 2019 to identify studies reporting the rates of recovery from AKI after HSCT. The random-effects and generic inverse variance methods of DerSimonian-Laird were used to combine the effect estimates obtained from individual studies. Results A total of 458 patients from eight cohort studies with AKI after HSCT were identified. Overall, the pooled estimated rates of AKI recovery among patients with AKI and severe AKI requiring KRT within 100 days were 58% (95%CI: 37%-78%) and 10% (95%CI: 2%-4%), respectively. Among patients with AKI recovery, the pooled estimated rates of complete and partial AKI recovery were 60% (95%CI: 39%-78%) and 29% (95%CI: 10%-61%), respectively. There was no clear correlation between study year and the rate of AKI recovery (p=0.26). Conclusion The rate of recovery from AKI after HSCT depends on the severity of AKI. While recovery is common, complete recovery is reported in about two-thirds of all AKI patients. The rate of recovery among those with AKI requiring renal replacement therapy (RRT) is substantially lower.
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Affiliation(s)
| | | | | | | | - Tarun Bathini
- Internal Medicine, University of Arizona, Tucson, USA
| | - Vishnu Garla
- Internal Medicine, University of Mississippi Medical Center, Jackson, USA
| | - Pradeep Vailta
- Nephrology, University of Mississippi Medical Center, Jackson, USA
| | | | - Juan Medaura
- Nephrology, University of Mississippi Medical Center, Jackson, USA
| | - Kianoush Kashani
- Pulmonary and Critical Care Medicine, Nephrology and Hypertension, Mayo Clinic, Rochester, USA
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Sohaney R, Heung M. Care of the Survivor of Critical Illness and Acute Kidney Injury: A Multidisciplinary Approach. Adv Chronic Kidney Dis 2021; 28:105-113. [PMID: 34389131 DOI: 10.1053/j.ackd.2021.01.001] [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: 08/02/2020] [Revised: 10/19/2020] [Accepted: 01/04/2021] [Indexed: 11/11/2022]
Abstract
Acute kidney injury (AKI) is a common complication of critical illness and is associated with adverse short- and long-term health consequences. Survivors of critical illness and AKI experience poor kidney, cardiovascular and quality of life outcomes, along with increased mortality. Yet, many patients surviving AKI are unaware that there is a problem with their kidney health, and post-AKI nephrology follow-up occurs at very low rates. Although there is a paucity of evidence-based studies to guide post-AKI care, attention to risk factors such as hypertension and albuminuria are requisite. There are several ongoing or planned studies which are expected to help inform specific management in the future. Until then, a multidisciplinary approach is warranted to address areas such as quality of life, physical rehabilitation, dietary modifications, and medication reconciliation.
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Dyschloremia is associated with failure to restore renal function in survivors with acute kidney injury: an observation retrospective study. Sci Rep 2020; 10:19623. [PMID: 33184400 PMCID: PMC7661702 DOI: 10.1038/s41598-020-76798-5] [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: 07/17/2020] [Accepted: 10/23/2020] [Indexed: 01/30/2023] Open
Abstract
Dyschloremia is common in critically ill patients. However, little is known about the effects of dyschloremia on renal function in patients with acute kidney injury (AKI) requiring continuous renal replacement therapy (CRRT). A total of 483 patients who received CRRT for AKI were selected and divided into three groups according to their serum chloride concentrations at the time of CRRT initiation. At 90 days after initiating CRRT, renal outcome, i.e., non-complete renal recovery, or renal failure, was assessed in the three groups. The hypochloremia group (serum chloride concentrations < 96 mEq/L, n = 60), the normochloremia group (serum chloride concentrations, 96–111 mEq/L, n = 345), and the hyperchloremia group (serum chloride concentrations > 111 mEq/L, n = 78) were classified. The simplified acute physiology score III was higher in the hyperchloremia and hypochloremia groups than in the normochloremia group. Multivariate logistic regression analyses showed that hypochloremia (odds ratio, 5.12; 95% confidence interval [CI], 2.56–10.23; P < 0.001) and hyperchloremia (odds ratio, 2.53; 95% CI, 1.25–5.13; P = 0.01) were significantly associated with non-complete renal recovery. Similar trends were observed for renal failure. This study showed that dyschloremia was independently associated with failure in restoring renal function following AKI.
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Current Approach to Successful Liberation from Renal Replacement Therapy in Critically Ill Patients with Severe Acute Kidney Injury: The Quest for Biomarkers Continues. Mol Diagn Ther 2020; 25:1-8. [PMID: 33099671 PMCID: PMC8154765 DOI: 10.1007/s40291-020-00498-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2020] [Indexed: 11/18/2022]
Abstract
Recovery of sufficient kidney function to liberate patients with severe acute kidney injury (AKI-D) from renal replacement therapy (RRT) is recognized as a vital patient-centred outcome. However, no clinical consensus guideline provides specific recommendations on when and how to stop RRT in anticipation of renal recovery from AKI-D. Currently, wide variations in clinical practice regarding liberation from RRT result in early re-start of RRT to treat uraemia after premature liberation or in the unnecessary prolonged exposure of unwell patients after late liberation. Observational studies, predominantly retrospective in nature, have attempted to assess numerous surrogate markers of kidney function or of biomarkers of kidney damage to predict successful liberation from RRT. However, a substantial heterogeneity in the timing of measurement and cut-off values of most biomarkers across studies allows no pooling of data, and impedes the comparison of outcomes from such studies. The accuracy of most traditional and novel biomarkers cannot be assessed reliably. Currently, the decision to discontinue RRT in AKI-D patients relies on daily clinical assessments of the patient’s status supplemented by measurement of creatinine clearance (> 15 ml/min) and 24-h urine output (> 2000 ml/min with diuretics). Clinical trials objectively comparing the success of validated biomarkers for guiding optimal timed liberation from RRT in AKI-D will be required to provide high-quality evidence for guidelines.
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40
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Mizera L, Dürr MM, Rath D, Artunc F, Gawaz M, Riessen R. [Long-term outcome after dialysis-dependent renal failure on the intensive care unit]. Med Klin Intensivmed Notfmed 2020; 116:570-577. [PMID: 32821961 PMCID: PMC8494662 DOI: 10.1007/s00063-020-00719-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 07/02/2020] [Accepted: 07/16/2020] [Indexed: 11/23/2022]
Abstract
Hintergrund Das akute dialysepflichtige Nierenversagen („dialysis-requiring acute kidney injury“ [AKI‑D]) ist eine häufige und schwerwiegende Komplikation bei intensivmedizinisch behandelten Patienten. Fragestellung Im Rahmen dieser Studie sollte untersucht werden, welchen Einfluss ein AKI‑D auf die Sterblichkeit von Intensivpatienten besitzt, bei welchem Anteil der überlebenden Patienten auch bei Entlassung noch ein Nierenersatzverfahren benötigt wird und wie sich dies auf die Langzeitmortalität und die längerfristige Notwendigkeit einer Dialysetherapie auswirkt. Material und Methoden Auswertung von 118 Patientenfällen mit AKI‑D zwischen November 2016 und Dezember 2017 auf einer internistischen Intensivstation am Universitätsklinikum Tübingen. Die Dialysefreiheit zum Entlasszeitpunkt und die 1‑Jahres-Mortalität wurden als primäre Endpunkte definiert. Den sekundären Endpunkt stellte die Dialysepflichtigkeit nach 18 Monaten dar. Ergebnisse Die Krankenausmortalität der Patienten mit AKI‑D betrug 45,8 % (54/118). Von den 64 überlebenden Patienten mit AKI‑D waren 41 (64,1 %) zum Zeitpunkt der Entlassung nicht mehr auf ein Nierenersatzverfahren angewiesen. Im Vergleich dazu war die 1‑Jahres-Mortalität bei den 23 (35,9 %) Patienten, bei denen zur Krankenhausentlassung noch eine Dialysepflicht bestand, signifikant höher (24,4 % vs. 60,9 %, p = 0,004). Eine Dialysepflichtigkeit 18 Monate nach Krankenhausentlassung bestand bei 7 Patienten (10,9 %). Zu diesem Zeitpunkt waren überwiegend noch Patienten von einer Dialyse abhängig, bei denen bereits zum Entlasszeitpunkt ein Nierenersatzverfahren notwendig war (71,4 % vs. 7,1 %, p = 0,001). Schlussfolgerungen Schwere AKI-Episoden, bei denen ein Nierenersatzverfahren auf einer Intensivstation notwendig wird, sind auch 1 Jahr bzw. 18 Monate nach Entlassung mit einer erhöhten Mortalität bzw. einer anhaltenden Dialysepflichtigkeit assoziiert.
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Affiliation(s)
- L Mizera
- Medizinische Klinik III - Kardiologie und Angiologie, Universitätsklinikum Tübingen, Otfried-Müller-Str. 10, 72076, Tübingen, Deutschland.
| | - M M Dürr
- Interdisziplinäre Intensivstation, Medizinisches Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - D Rath
- Medizinische Klinik III - Kardiologie und Angiologie, Universitätsklinikum Tübingen, Otfried-Müller-Str. 10, 72076, Tübingen, Deutschland
| | - F Artunc
- Medizinische Klinik IV - Diabetologie, Endokrinologie, Nephrologie, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - M Gawaz
- Medizinische Klinik III - Kardiologie und Angiologie, Universitätsklinikum Tübingen, Otfried-Müller-Str. 10, 72076, Tübingen, Deutschland
| | - R Riessen
- Interdisziplinäre Intensivstation, Medizinisches Universitätsklinikum Tübingen, Tübingen, Deutschland
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Liu KD, Forni LG, Heung M, Wu VC, Kellum JA, Mehta RL, Ronco C, Kashani K, Rosner MH, Haase M, Koyner JL. Quality of Care for Acute Kidney Disease: Current Knowledge Gaps and Future Directions. Kidney Int Rep 2020; 5:1634-1642. [PMID: 33102955 PMCID: PMC7569680 DOI: 10.1016/j.ekir.2020.07.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/07/2020] [Accepted: 07/28/2020] [Indexed: 12/18/2022] Open
Abstract
Acute kidney injury (AKI) and acute kidney disease (AKD) are common complications in hospitalized patients and are associated with adverse outcomes. Although consensus guidelines have improved the care of patients with AKI and AKD, guidance regarding quality metrics in the care of patients after an episode of AKI or AKD is limited. For example, few patients receive follow-up laboratory testing of kidney function or post-AKI or AKD care through nephrology or other providers. Recently, the Acute Disease Quality Initiative developed a consensus statement regarding quality improvement goals for patients with AKI or AKD specifically highlighting efforts regarding quality and safety of care after hospital discharge after an episode of AKI or AKD. The goal is to use these measures to identify opportunities for improvement that will positively affect outcomes. We recommend that health care systems quantitate the proportion of patients who need and actually receive follow-up care after the index AKI or AKD hospitalization. The intensity and appropriateness of follow-up care should depend on patient characteristics, severity, duration, and course of AKI of AKD, and should evolve as evidence-based guidelines emerge. Quality indicators for discharged patients with dialysis requiring AKI or AKD should be distinct from end-stage renal disease measures. Besides, there should be specific quality indicators for those still requiring dialysis in the outpatient setting after AKI or AKD. Given the limited preexisting data guiding the care of patients after an episode of AKI or AKD, there is ample opportunity to establish quality measures and potentially improve patient care and outcomes. This review will provide specific evidence-based and expert opinion–based guidance for the care of patients with AKI or AKD after hospital discharge.
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Affiliation(s)
- Kathleen D Liu
- Division of Nephrology, Departments of Medicine and Anesthesia, University of California, San Francisco, California, USA
- Division of Critical Care Medicine, Departments of Medicine and Anesthesia, University of California, San Francisco, California, USA
| | - Lui G Forni
- Department of Clinical and Experimental Medicine, Faculty of Health and Medical Sciences, University of Surrey, Royal Surrey County Hospital NHS Foundation Trust, Guildford, Surrey, UK
| | - Michael Heung
- Division of Nephrology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Vin-Cent Wu
- Division of Nephrology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - John A Kellum
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Ravindra L Mehta
- Division of Nephrology, Department of Medicine, University of California, San Diego Medical Center, San Diego, San Diego, California, USA
| | - Claudio Ronco
- Department of Medicine (DIMED), University of Padova, Padova, Italy
- Department of Nephrology, Dialysis and Transplantation, and International Renal Research Institute, San Bortolo Hospital, Vicenza, Italy
| | - Kianoush Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Mitchell H Rosner
- Division of Nephrology, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Michael Haase
- Medical Faculty, Otto-von-Guericke University Magdeburg and Diaverum MVZ, Potsdam, Germany
| | - Jay L Koyner
- Section of Nephrology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
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Blanco-Gozalo V, Casanova AG, Sancho-Martínez SM, Prieto M, Quiros Y, Morales AI, Martínez-Salgado C, Agüeros-Blanco C, Benito-Hernández A, Ramos-Barron MA, Gómez-Alamillo C, Arias M, López-Hernández FJ. Combined use of GM2AP and TCP1-eta urinary levels predicts recovery from intrinsic acute kidney injury. Sci Rep 2020; 10:11599. [PMID: 32665654 PMCID: PMC7360779 DOI: 10.1038/s41598-020-68398-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 06/15/2020] [Indexed: 12/21/2022] Open
Abstract
Deficient recovery from acute kidney injury (AKI) has immediate and long-term health, clinical and economic consequences. Pre-emptive recovery estimation may improve nephrology referral, optimize decision making, enrollment in trials, and provide key information for subsequent clinical handling and follow-up. For this purpose, new biomarkers are needed that predict outcome during the AKI episode. We hypothesized that damage pattern-specific biomarkers are expected to more closely associate to outcome within distinct subpopulations (i.e. those affected by specific pathological processes determining a specific outcome), as biomarker pleiotropy (i.e. associated to phenomena unrelated to AKI) introduced by unselected, heterogeneous populations may blur statistics. A panel of urinary biomarkers was measured in patients with AKI and their capacity to associate to normal or abnormal recovery was studied in the whole cohort or after sub-classification by AKI etiology, namely pre-renal and intrinsic AKI. A combination of urinary GM2AP and TCP1-eta best associates with recovery from AKI, specifically within the sub-population of renal AKI patients. This two-step strategy generates a multidimensional space in which patients with specific characteristics (i.e. renal AKI patients with good or bad prognosis) can be identified based on a collection of biomarkers working serially, applying pathophysiology-driven criteria to estimate AKI recovery, to facilitate pre-emptive and personalized handling.
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Affiliation(s)
- Víctor Blanco-Gozalo
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain.,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain.,National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Alfredo G Casanova
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain.,Instituto de Estudios de Ciencias de La Salud de Castilla y León (IECSCYL), Soria, Spain.,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain
| | - Sandra M Sancho-Martínez
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain.,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain.,National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Prieto
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain.,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain.,National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Yaremi Quiros
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain.,Instituto de Estudios de Ciencias de La Salud de Castilla y León (IECSCYL), Soria, Spain.,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain
| | - Ana I Morales
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain.,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain.,Group of Biomedical Research on Critical Care (BioCritic), Valladolid, Spain.,National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Carlos Martínez-Salgado
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain.,Instituto de Estudios de Ciencias de La Salud de Castilla y León (IECSCYL), Soria, Spain.,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain
| | - Consuelo Agüeros-Blanco
- Department of Nephrology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Sanitaria Valdecilla (IDIVAL), Santander, Spain
| | - Adalberto Benito-Hernández
- Department of Nephrology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Sanitaria Valdecilla (IDIVAL), Santander, Spain
| | - María A Ramos-Barron
- Department of Nephrology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Sanitaria Valdecilla (IDIVAL), Santander, Spain
| | - Carlos Gómez-Alamillo
- Department of Nephrology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Sanitaria Valdecilla (IDIVAL), Santander, Spain
| | - Manuel Arias
- Department of Nephrology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Sanitaria Valdecilla (IDIVAL), Santander, Spain
| | - Francisco J López-Hernández
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain. .,Department of Physiology and Pharmacology, University of Salamanca, Edificio Departamental, S-20, Campus Miguel de Unamuno, 37007, Salamanca, Spain. .,Instituto de Estudios de Ciencias de La Salud de Castilla y León (IECSCYL), Soria, Spain. .,Group of Translational Research On Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain. .,Group of Biomedical Research on Critical Care (BioCritic), Valladolid, Spain. .,National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain.
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Darmon M, Truche AS, Abdel-Nabey M, Schnell D, Souweine B. Early Recognition of Persistent Acute Kidney Injury. Semin Nephrol 2020; 39:431-441. [PMID: 31514907 DOI: 10.1016/j.semnephrol.2019.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Despite the vast amount of literature dedicated to acute kidney injury (AKI) and its clinical consequences, short-term renal recovery has been relatively neglected. Recent studies have suggested that timing of renal recovery is associated with longer-term risk of death, residual renal function, and end-stage renal failure risk. In addition, longer AKI duration is associated with an increased requirement for renal replacement therapy. Comorbidities, especially renal and cardiovascular, severity of AKI, criteria to reach AKI diagnosis, as well as severity of critical illness have been associated with longer AKI duration, and, more specifically, risk of persistent renal dysfunction. Because predicting short-term renal recovery is clinically relevant, several tests, imaging, and biomarkers have been tested in a way to predict the course of AKI and chances for early renal recovery. In this review, the definition of recovery, consequences of persistent AKI, and tools proposed to predict recovery are described. The performance of these tools and their limits are discussed.
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Affiliation(s)
- Michaël Darmon
- Medical Intensive Care Unit, Saint-Louis University Hospital, AP-HP, Paris, France; Faculté de Médecine, Université Paris-Diderot, Sorbonne-Paris-Cité, Paris, France; ECSTRA Team (Epidémiologie Clinique et Statistiques pour la Recherche en sAnté), Biostatistics and Clinical Epidemiology, UMR 1153, Center of Epidemiology and Biostatistic Sorbonne Paris Cité, INSERM, Paris, France.
| | - Anne-Sophie Truche
- Medical Intensive Care Unit, Grenoble University Hospital, La Tronche, France
| | | | - David Schnell
- Medical-Surgical Intensive Care Unit, Angoulême Hospital, Angoulême, France
| | - Bertrand Souweine
- Medical Intensive Care Unit, Gabriel Montpied University Hospital, Clermont-Ferrand, France
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Liu KD, Goldstein SL, Vijayan A, Parikh CR, Kashani K, Okusa MD, Agarwal A, Cerdá J. AKI!Now Initiative: Recommendations for Awareness, Recognition, and Management of AKI. Clin J Am Soc Nephrol 2020; 15:1838-1847. [PMID: 32317329 PMCID: PMC7769012 DOI: 10.2215/cjn.15611219] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The American Society of Nephrology has established a new initiative, AKI!Now, with the goal of promoting excellence in the prevention and treatment of AKI by building a foundational program that transforms education and delivery of AKI care, aiming to reduce morbidity and associated mortality and to improve long-term outcomes. In this article, we describe our current efforts to improve early recognition and management involving inclusive interdisciplinary collaboration between providers, patients, and their families; discuss the ongoing need to change some of our current AKI paradigms and diagnostic methods; and provide specific recommendations to improve AKI recognition and care. In the hospital and the community, AKI is a common and increasingly frequent condition that generates risks of adverse events and high costs. Unfortunately, patients with AKI may frequently have received less than optimal quality of care. New classifications have facilitated understanding of AKI incidence and its impact on outcomes, but they are not always well aligned with AKI pathophysiology. Despite ongoing research efforts, treatments to promote or hasten kidney recovery remain ineffective. To avoid progression, the current approach to AKI emphasizes the promotion of early recognition and timely response. However, a lack of awareness of the importance of early recognition and treatment among health care team members and the heterogeneity of approaches within the health care teams assessing the patient remains a major challenge. Early identification is further complicated by differences in settings where AKI occurs (the community or the hospital), and by differences in patient populations and cultures between the intensive care unit and ward environments. To address these obstacles, we discuss the need to improve education at all levels of care and to generate specific guidance on AKI evaluation and management, including the development of a widely applicable education and an AKI management toolkit, engaging hospital administrators to incorporate AKI as a quality initiative, and raising awareness of AKI as a complication of other disease processes.
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Affiliation(s)
- Kathleen D Liu
- University of California at San Francisco School of Medicine, University of California San Francisco, San Francisco, California
| | - Stuart L Goldstein
- Center for Acute Nephrology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Anitha Vijayan
- Division of Nephrology, Washington University in St. Louis, St. Louis, Missouri
| | - Chirag R Parikh
- Division of Nephrology, Johns Hopkins University, Baltimore, Maryland
| | - Kianoush Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Mark D Okusa
- Division of Nephrology, University of Virginia, Charlottesville, Virginia
| | - Anupam Agarwal
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Jorge Cerdá
- St. Peter's Health Partners, Albany, New York
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Thongprayoon C, Hansrivijit P, Kovvuru K, Kanduri SR, Torres-Ortiz A, Acharya P, Gonzalez-Suarez ML, Kaewput W, Bathini T, Cheungpasitporn W. Diagnostics, Risk Factors, Treatment and Outcomes of Acute Kidney Injury in a New Paradigm. J Clin Med 2020; 9:E1104. [PMID: 32294894 PMCID: PMC7230860 DOI: 10.3390/jcm9041104] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/13/2022] Open
Abstract
Acute kidney injury (AKI) is a common clinical condition among patients admitted in the hospitals. The condition is associated with both increased short-term and long-term mortality. With the development of a standardized definition for AKI and the acknowledgment of the impact of AKI on patient outcomes, there has been increased recognition of AKI. Two advances from past decades, the usage of computer decision support and the discovery of AKI biomarkers, have the ability to advance the diagnostic method to and further management of AKI. The increasingly widespread use of electronic health records across hospitals has substantially increased the amount of data available to investigators and has shown promise in advancing AKI research. In addition, progress in the finding and validation of different forms of biomarkers of AKI within diversified clinical environments and has provided information and insight on testing, etiology and further prognosis of AKI, leading to future of precision and personalized approach to AKI management. In this this article, we discussed the changing paradigms in AKI: from mechanisms to diagnostics, risk factors, and management of AKI.
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Affiliation(s)
- Charat Thongprayoon
- Division of Nephrology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA;
| | - Panupong Hansrivijit
- Department of Internal Medicine, University of Pittsburgh Medical Center Pinnacle, Harrisburg, PA 17105, USA;
| | - Karthik Kovvuru
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA; (K.K.); (S.R.K.); (M.L.G.-S.)
| | - Swetha R. Kanduri
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA; (K.K.); (S.R.K.); (M.L.G.-S.)
| | - Aldo Torres-Ortiz
- Department of Medicine, Ochsner Medical Center, New Orleans, LA 70121, USA;
| | - Prakrati Acharya
- Division of Nephrology, Department of Medicine, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA;
| | - Maria L. Gonzalez-Suarez
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA; (K.K.); (S.R.K.); (M.L.G.-S.)
| | - Wisit Kaewput
- Department of Military and Community Medicine, Phramongkutklao College of Medicine, Bangkok 10400, Thailand;
| | - Tarun Bathini
- Department of Internal Medicine, University of Arizona, Tucson, AZ 85724, USA;
| | - Wisit Cheungpasitporn
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA; (K.K.); (S.R.K.); (M.L.G.-S.)
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46
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Katulka RJ, Al Saadon A, Sebastianski M, Featherstone R, Vandermeer B, Silver SA, Gibney RTN, Bagshaw SM, Rewa OG. Determining the optimal time for liberation from renal replacement therapy in critically ill patients: a systematic review and meta-analysis (DOnE RRT). Crit Care 2020; 24:50. [PMID: 32054522 PMCID: PMC7020497 DOI: 10.1186/s13054-020-2751-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/27/2020] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION Renal replacement therapy (RRT) is associated with high mortality and costs; however, no clinical guidelines currently provide specific recommendations for clinicians on when and how to stop RRT in recovering patients. Our objective was to systematically review the current evidence for clinical and biochemical parameters that can be used to predict successful discontinuation of RRT. METHODS A systematic review and meta-analysis were performed with a peer-reviewed search strategy combining the themes of renal replacement therapy (IHD, CRRT, SLED), predictors of successful discontinuation or weaning (defined as an extended period of time free from further RRT), and patient outcomes. Major databases were searched and citations were screened using predefined criteria. Studied parameters were reported and, where possible, data was analyzed in the pooled analysis. RESULTS Our search yielded 23 studies describing 16 variables for predicting the successful discontinuation of RRT. All studies were observational in nature. None were externally validated. Fourteen studies described conventional biochemical criteria used as surrogates of glomerular filtration rate (serum urea, serum creatinine, creatinine clearance, urine urea excretion, urine creatinine excretion). Thirteen studies described physiologic parameters such as urine output before and after cessation of RRT, and 13 studies reported on newer kidney biomarkers, such as serum cystatin C and serum neutrophil gelatinase-associated lipocalin (NGAL). Six studies reported sensitivity and specificity characteristics of multivariate models. Urine output prior to discontinuation of RRT was the most-studied variable, with nine studies reporting. Pooled analysis found a sensitivity of 66.2% (95% CI, 53.6-76.9%) and specificity of 73.6% (95% CI, 67.5-79.0%) for urine output to predict successful RRT discontinuation. Due to heterogeneity in the thresholds of urine output used across the studies, an optimal threshold value could not be determined. CONCLUSIONS Numerous variables have been described to predict successful discontinuation of RRT; however, available studies are limited by study design, variable heterogeneity, and lack of prospective validation. Urine output prior to discontinuation of RRT was the most commonly described and robust predictor. Further research should focus on the determination and validation of urine output thresholds, and the evaluation of additional clinical and biochemical parameters in multivariate models to enhance predictive accuracy.
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Affiliation(s)
- Riley Jeremy Katulka
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, 2-124E Clinical Sciences Building 8440 112 St. NW, Edmonton, Alberta, T6G 2B7, Canada
| | - Abdalrhman Al Saadon
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, 2-124E Clinical Sciences Building 8440 112 St. NW, Edmonton, Alberta, T6G 2B7, Canada
| | - Meghan Sebastianski
- Alberta Strategy for Patient-Oriented Research (SPOR) SUPPORT Unit Knowledge Translation Platform, University of Alberta, 4-472 Edmonton Clinic Health Academy, 11405 - 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - Robin Featherstone
- Alberta Strategy for Patient-Oriented Research (SPOR) SUPPORT Unit Knowledge Translation Platform, University of Alberta, 4-472 Edmonton Clinic Health Academy, 11405 - 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
- Alberta Research Center for Health Evidence (ARCHE), University of Alberta, 4-496 Edmonton Clinic Health Academy, 11405 - 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - Ben Vandermeer
- Alberta Strategy for Patient-Oriented Research (SPOR) SUPPORT Unit Knowledge Translation Platform, University of Alberta, 4-472 Edmonton Clinic Health Academy, 11405 - 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
- Alberta Research Center for Health Evidence (ARCHE), University of Alberta, 4-496 Edmonton Clinic Health Academy, 11405 - 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - Samuel A Silver
- Division of Nephrology, Department of Medicine, Queen's University, 94 Stuart Street, Kingston, Ontario, K7L 3N6, Canada
| | - R T Noel Gibney
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, 2-124E Clinical Sciences Building 8440 112 St. NW, Edmonton, Alberta, T6G 2B7, Canada
| | - Sean M Bagshaw
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, 2-124E Clinical Sciences Building 8440 112 St. NW, Edmonton, Alberta, T6G 2B7, Canada
| | - Oleksa G Rewa
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, 2-124E Clinical Sciences Building 8440 112 St. NW, Edmonton, Alberta, T6G 2B7, Canada.
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Medica D, Dellepiane S, Cantaluppi V. Regenerative Role of Stem Cell-Derived Extracellular Vesicles in Acute Kidney Injury. Nephron Clin Pract 2020; 144:638-643. [DOI: 10.1159/000511347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/03/2020] [Indexed: 11/19/2022] Open
Abstract
Acute kidney injury (AKI) is a frequent complication of hospital admission and worsens short- and long-term patients’ prognosis. Currently, AKI treatment remains supportive and no therapy has proven significant benefit in clinical trials. Stem cells (SCs) are a promising therapeutic option, but their translation to the clinical setting is limited by the risk of rejection or aberrant differentiation. Numerous studies have shown how SC effects are mediated by paracrine factors such as extracellular vesicles (EVs). In this review, we describe the preclinical evidence about EV efficacy in acute tubular and glomerular injury and the recently generated clinical data.
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Hsu CY, Liu KD, Yang J, Glidden DV, Tan TC, Pravoverov L, Zheng S, Go AS. Renin-Angiotensin System Blockade after Acute Kidney Injury (AKI) and Risk of Recurrent AKI. Clin J Am Soc Nephrol 2019; 15:26-34. [PMID: 31843974 PMCID: PMC6946085 DOI: 10.2215/cjn.05800519] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 10/09/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVES How to best medically manage patients who survived hospitalized AKI is unclear. Use of renin-angiotensin system blockers in this setting may increase risk of recurrent AKI. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This is a cohort study of 10,242 members of an integrated health care delivery system in Northern California who experienced AKI and survived a hospitalization between January 1, 2006 and December 31, 2013. All study participants did not have prior heart failure or use of angiotensin-converting enzyme inhibitors (ACE-Is) or angiotensin receptor blockers (ARBs) up to 5 years prior. New receipt and time-updated exposure of ACE-Is/ARBs was identified on the basis of dispensed prescriptions found in outpatient health plan pharmacy databases. The main outcome of interest was subsequent episode of hospitalized AKI after discharge from an initial index hospitalization complicated by AKI. Recurrent AKI episode was defined using acute changes in serum creatinine concentrations. Marginal structural models were used to adjust for baseline and potential time-dependent confounders. RESULTS Forty-seven percent of the study population had a documented eGFR<60 ml/min per 1.73 m2 or documented proteinuria before hospitalization. With a median of 3 (interquartile range, 1-5) years of follow-up, 1853 (18%) patients initiated use of ACE-Is/ARBs and 2124 (21%) patients experienced recurrent AKI. Crude rate of recurrent AKI was 6.1 (95% confidence interval [95% CI], 5.9 to 6.4) per 100 person-years off ACE-Is/ARBs and 5.7 (95% CI, 4.9 to 6.5) per 100 person-years on ACE-Is/ARBs. In marginal structural causal inference models that adjusted for baseline and potential time-dependent confounders, exposure to ACE-I/ARB use was not associated with higher incidence of recurrent AKI (adjusted odds ratio, 0.71; 95% CI, 0.45 to 1.12). CONCLUSIONS In this study of AKI survivors without heart failure, new use of ACE-I/ARB therapy was not independently associated with increased risk of recurrent hospitalized AKI.
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Affiliation(s)
- Chi-Yuan Hsu
- Division of Nephrology, Department of Medicine, and .,Division of Research, Kaiser Permanente Northern California, Oakland, California
| | | | - Jingrong Yang
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - David V Glidden
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
| | - Thida C Tan
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | | | - Sijie Zheng
- Division of Research, Kaiser Permanente Northern California, Oakland, California.,Kaiser Permanente Oakland Medical Center, Oakland, California; and
| | - Alan S Go
- Division of Nephrology, Department of Medicine, and.,Division of Research, Kaiser Permanente Northern California, Oakland, California.,Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California.,Departments of Medicine (Nephrology), Health Research and Policy, Stanford University, Palo Alto, California
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Alscher MD, Erley C, Kuhlmann MK. Acute Renal Failure of Nosocomial Origin. DEUTSCHES ARZTEBLATT INTERNATIONAL 2019; 116:149-158. [PMID: 30961801 DOI: 10.3238/arztebl.2019.0149] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 10/02/2018] [Accepted: 01/13/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND 10-20% of hospitalized patients develop acute kidney injury (AKI)/acute renal failure during their hospital stay. The mortality of nosocomial AKI is approximately 30%. METHODS This review is based on relevant publications retrieved by a search in multiple databases (PubMed and Uptodate), archives, and pertinent medical journals. RESULTS The most common causes of nosocomial AKI are volume depletion, sepsis, heart diseases, polytrauma, liver diseases, and drug toxicity. AKI can also be of postrenal (obstructive) origin, or a result of renal diseases including glomeruloneph- ritis, vasculitis, tubulointerstitial nephritis, and cholesterol embolism. In about 13% of cases, nosocomial AKI develops on the basis of pre-existing chronic renal disease. Patients with AKI are at elevated risk of developing chronic renal disease and must be followed up appropriately after they are discharged from the hospital. Indispens- able elements of the evaluation of nosocomial AKI include renal ultrasonography, the exclusion of postrenal obstruction, urine chemistry, and microbiological urinaly- sis. Potentially nephrotoxic drugs and those that impair renal hemodynamics must be avoided to the greatest possible extent in patients with acute renal damage. Hypotension must be avoided as well. CONCLUSION Early, specific nephrological diagnosis and treatment are important components of the management of nosocomial AKI, particularly because causally directed treatment is available for some of the conditions that underlie it.
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Wang C, Hiremath S, Sikora L, Sood MM, Kong J, Clark E. Outpatient kidney recovery after acute kidney injury requiring dialysis: a systematic review protocol. Syst Rev 2019; 8:214. [PMID: 31439026 PMCID: PMC6706935 DOI: 10.1186/s13643-019-1134-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 08/13/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Acute kidney injury requiring dialysis (AKI-D) during hospitalization is associated with both in-hospital and post-discharge mortality. Its incidence has risen over time in Canada and the USA. While the majority of AKI-D will recover to dialysis independence at the time of hospital discharge, 10-30% will transition to outpatient dialysis. The risk factors that determine dialysis independence after AKI-D and its optimal outpatient management remain unclear. Eliciting prognostic predictors of kidney recovery in patients who remain on dialysis after hospital discharge will guide subsequent clinical decision making. The objective of this study is to assess the association between patient- and treatment-related factors with short- and long-term outcomes in patients who remained dialysis-dependent after hospitalization with AKI-D. METHODS A literature search in EMBASE, MEDLINE, and PubMed will be performed based on pre-specified criteria. There are no restrictions on language and publication dates. The supplemental search will include manual scan of bibliographies of eligible studies and grey literature assessment. Pre-specified criteria will be used to select eligible studies. Relevant data will be extracted and quality assessments performed per validated tools. Qualitative data synthesis will be performed to reflect directions of associations. Meta-analysis will be formed if two or more studies with similar prognostic factors, outcomes, and adequate quality are identified. Strength of association will be quantified as odds ratios. Reporting of this review will be guided by recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. DISCUSSION This systematic review aims to synthesize association between modifiable and non-modifiable prognostic factors with renal outcomes in AKI-D patients who remain dialysis-dependent after hospital discharge. Our findings will help inform the development of evidence-based management and guide long-term treatment planning for AKI-D patients. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration number CRD42019127394 .
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Affiliation(s)
- Carol Wang
- Department of Medicine, University of Ottawa, CPC 162 737 Parkdale Avenue, Ottawa, Ontario K1Y 1 J8 Canada
| | - Swapnil Hiremath
- Division of Nephrology, Department of Medicine, The Ottawa Hospital and University of Ottawa, The Ottawa Hospital – Riverside Campus, 1967 Riverside Drive, Ottawa, Ontario K1H 7 W9 Canada
| | - Lindsey Sikora
- Health Sciences Library, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8 M5 Canada
| | - Manish M. Sood
- Division of Nephrology, Department of Medicine, The Ottawa Hospital and University of Ottawa, The Ottawa Hospital – Riverside Campus, 1967 Riverside Drive, Ottawa, Ontario K1H 7 W9 Canada
| | - Jennifer Kong
- Division of Nephrology, Ottawa Hospital Research Institute, The Ottawa Hospital, 1967 Riverside Drive, Ottawa, Ontario K1H 7 W9 Canada
| | - Edward Clark
- Division of Nephrology, Department of Medicine, The Ottawa Hospital and University of Ottawa, The Ottawa Hospital – Riverside Campus, 1967 Riverside Drive, Ottawa, Ontario K1H 7 W9 Canada
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