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Zhang Q, Wang X, Chao Y, Liu L. Focus on oliguria during renal replacement therapy. J Anesth 2024; 38:681-691. [PMID: 38777933 DOI: 10.1007/s00540-024-03342-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 04/29/2024] [Indexed: 05/25/2024]
Abstract
Oliguria is a clinical symptom characterized by decreased urine output, which can occur at any stage of acute kidney injury and also during renal replacement therapy. In some cases, oliguria may resolve with adjustment of blood purification dose or fluid management, while in others, it may suggest a need for further evaluation and intervention. It is important to determine the underlying cause of oliguria during renal replacement therapy and to develop an appropriate treatment plan. This review looks into the mechanisms of urine production to investigate the mechanism of oliguria during renal replacement therapy from two aspects: diminished glomerular filtration rate and tubular abnormalities. The above conditions all implying a renal oxygen supply-demand imbalance, which is the signal of worsening kidney injury. It also proposes a viable clinical pathway for the treatment and management of patients with acute kidney injury receiving renal replacement therapy.
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Affiliation(s)
- Qian Zhang
- Department of Intensive Care Unit (ICU), The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China
| | - Xiaoting Wang
- Department of Intensive Care Unit (ICU), Peking Union Medical College Hospital, Beijing, 100005, People's Republic of China
| | - Yangong Chao
- Department of Intensive Care Unit (ICU), The First Affiliated Hospital of Tsinghua University, Beijing, 100016, People's Republic of China
| | - Lixia Liu
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050011, People's Republic of China.
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2
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da Hora Passos R, Coelho FO, Caldas JR, Dosde Santos GalvãoMelo EB, de Carvalho Farias AM, Messeder OHC, Macedo E. Predicting intradialytic hypotension in critically ill patients undergoing intermittent hemodialysis: a prospective observational study. Intensive Care Med Exp 2024; 12:82. [PMID: 39331284 PMCID: PMC11436581 DOI: 10.1186/s40635-024-00676-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2024] [Accepted: 09/11/2024] [Indexed: 09/28/2024] Open
Abstract
BACKGROUND Hypotension during dialysis arises from vasomotor tone alterations and hypovolemia, with disrupted counterregulatory mechanisms in acute kidney injury (AKI) patients. This study investigated the predictive value of preload dependency, assessed by the passive leg raising (PLR) test, and arterial tone, measured by dynamic elastance (Eadyn), for intradialytic hypotension (IDH). METHODS In this prospective observational study conducted in a tertiary hospital ICU, hemodynamic parameters were collected from critically ill AKI patients undergoing intermittent hemodialysis using the FloTrac/Vigileo system. Baseline measurements were recorded before KRT initiation, including the PLR test and Eadyn calculation. IDH was defined as mean arterial pressure (MAP) < 65 mmHg during dialysis. Logistic regression was used to identify predictors of IDH, and Kaplan-Meier analysis assessed 90-day survival. RESULTS Of 187 patients, 27.3% experienced IDH. Preload dependency, identified by positive PLR test, was significantly associated with IDH (OR 8.54, 95% CI 5.25-27.74), while baseline Eadyn was not predictive of IDH in this cohort. Other significant predictors of IDH included norepinephrine use (OR 16.35, 95% CI 3.87-68.98) and lower baseline MAP (OR 0.96, 95% CI 0.94-1.00). IDH and a positive PLR test were associated with lower 90-day survival (p < 0.001). CONCLUSIONS The PLR test is a valuable tool for predicting IDH in critically ill AKI patients undergoing KRT, while baseline Eadyn did not demonstrate predictive value in this setting. Continuous hemodynamic monitoring, including assessment of preload dependency, may optimize patient management and potentially improve outcomes. Further research is warranted to validate these findings and develop targeted interventions to prevent IDH.
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Affiliation(s)
- Rogério da Hora Passos
- Departamento de Pacientes Graves, Hospital Israelita Albert Einstein, Av Albert Einstein, 627/701, Morumbi, São Paulo, SP, Brazil.
- Davita Tratamento Renal, Rio de Janeiro, Brazil.
| | | | | | | | | | | | - Etienne Macedo
- Nephrology Division, University of California, San Diego, USA
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3
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Callum J, Skubas NJ, Bathla A, Keshavarz H, Clark EG, Rochwerg B, Fergusson D, Arbous S, Bauer SR, China L, Fung M, Jug R, Neill M, Paine C, Pavenski K, Shah PS, Robinson S, Shan H, Szczepiorkowski ZM, Thevenot T, Wu B, Stanworth S, Shehata N. Use of Intravenous Albumin: A Guideline From the International Collaboration for Transfusion Medicine Guidelines. Chest 2024; 166:321-338. [PMID: 38447639 PMCID: PMC11317816 DOI: 10.1016/j.chest.2024.02.049] [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: 11/21/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND Albumin is used commonly across a wide range of clinical settings to improve hemodynamics, to facilitate fluid removal, and to manage complications of cirrhosis. The International Collaboration for Transfusion Medicine Guidelines developed guidelines for the use of albumin in patients requiring critical care, undergoing cardiovascular surgery, undergoing kidney replacement therapy, or experiencing complications of cirrhosis. STUDY DESIGN AND METHODS Cochairs oversaw the guideline development process and the panel included researchers, clinicians, methodologists, and a patient representative. The evidence informing this guideline arises from a systematic review of randomized clinical trials and systematic reviews, in which multiple databases were searched (inception through November 23, 2022). The panel reviewed the data and formulated the guideline recommendations using Grading of Recommendations Assessment, Development, and Evaluation methodology. The guidelines were revised after public consultation. RESULTS The panel made 14 recommendations on albumin use in adult critical care (three recommendations), pediatric critical care (one recommendation), neonatal critical care (two recommendations), cardiovascular surgery (two recommendations), kidney replacement therapy (one recommendation), and complications of cirrhosis (five recommendations). Of the 14 recommendations, two recommendations had moderate certainty of evidence, five recommendations had low certainty of evidence, and seven recommendations had very low certainty of evidence. Two of the 14 recommendations suggested conditional use of albumin for patients with cirrhosis undergoing large-volume paracentesis or with spontaneous bacterial peritonitis. Twelve of 14 recommendations did not suggest albumin use in a wide variety of clinical situations where albumin commonly is transfused. INTERPRETATION Currently, few evidence-based indications support the routine use of albumin in clinical practice to improve patient outcomes. These guidelines provide clinicians with actionable recommendations on the use of albumin.
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Affiliation(s)
- Jeannie Callum
- Department of Pathology and Molecular Medicine, Queen's University and Kingston Health Sciences Centre, Kingston, ON, Canada.
| | - Nikolaos J Skubas
- Department of Cardiothoracic Anesthesiology, Anesthesiology Institute, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH
| | | | | | - Edward G Clark
- Division of Nephrology, University of Ottawa, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Bram Rochwerg
- Department of Medicine and Department of Health Research Methods, Evidence and Impact, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Dean Fergusson
- Department of Medicine, University of Ottawa, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Sesmu Arbous
- Department of Critical Care, Leiden University Medical Center, Leiden, The Netherlands
| | - Seth R Bauer
- Department of Pharmacy, Cleveland Clinic, Cleveland, OH
| | - Louise China
- Department of Hepatology and Institute for Liver and Digestive Health, The Royal Free NHS Trust and University College London, London, England
| | - Mark Fung
- Department of Pathology and Laboratory Medicine, University of Vermont Medical Center, Burlington, VT
| | - Rachel Jug
- University of Cincinnati College of Medicine, Cincinnati, OH
| | | | - Cary Paine
- Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA
| | - Katerina Pavenski
- Department of Laboratory Medicine and Pathobiology, Mount Sinai Hospital, Toronto, ON, Canada
| | - Prakesh S Shah
- Institute of Health Policy, Management, and Evaluation, Mount Sinai Hospital, Toronto, ON, Canada; Department of Pediatrics, Mount Sinai Hospital, Toronto, ON, Canada
| | - Susan Robinson
- Department of Clinical Haematology, Guy's and St Thomas' NHS Foundation Trust, London, England
| | - Hua Shan
- Department of Pathology, Stanford University School of Medicine, Palo Alto, CA
| | | | - Thierry Thevenot
- Service d'Hépatologie, Centre Hospitalier Régional et Universitaire de Besançon, Besançon, France
| | - Bovey Wu
- Department of Internal Medicine, Graduate Medical Education, Loma Linda University, Loma Linda, CA
| | - Simon Stanworth
- NHS Blood and Transplant, Oxford, England; Radcliffe Department of Medicine, University of Oxford, Oxford, England; John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, England
| | - Nadine Shehata
- Department of Medicine, University of Toronto, Mount Sinai Hospital, Toronto, ON, Canada; Transfusion Medicine Laboratory, Mount Sinai Hospital, Toronto, ON, Canada
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Nie A, Zhang S, Cai M, Yu L, Li J, Su X. Incidence and associated factors for hypotension during continuous renal replacement therapy in critically ill patients. Int J Nurs Pract 2024:e13296. [PMID: 39075855 DOI: 10.1111/ijn.13296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/01/2024] [Accepted: 07/17/2024] [Indexed: 07/31/2024]
Abstract
AIMS This work aimed to analyse retrospective data on hypotension incidence and associated factors among patients requiring continuous renal replacement therapy. BACKGROUND The incidence and risk factors of continuous renal replacement therapy-related hypotension have not been adequately explored. DESIGN The study was designed as a retrospective analysis. METHODS Patients who required continuous renal replacement therapy in the ICU between January 2017 and June 2021 were reviewed. The multivariate logistic regression model was used to determine the associated factors of hypotension. RESULTS Hypotension occurred in 242 out of 885 circuits (27.3%) among 140 patients. The logistic regression analysis identified seven factors associated with the occurrence of hypotension during CRRT: serum albumin (OR = 0.969, 95%CI: 0.934-0.999), serum calcium (OR = 0.514, 95%CI: 0.345-0.905), CO2CP (OR = 0.933, 95%CI: 0.897-0.971), use of vasopressors (OR = 5.731, 95%CI: 4.023-8.165), hypotension before CRRT initiation (OR = 2.779, 95%CI:1.238-6.242), age (OR = 1.016, 95%CI: 1.005-1.027), and fluid removal rate (OR = 1.002, 95%CI: 1.001-1.003). CONCLUSIONS Hypotension frequently occurs in patients receiving continuous renal replacement therapy, especially in the early stages. Multiple factors can be associated with cardiac output or peripheral resistance changes, including excessive ultrafiltration, vasopressors, serum albumin and serum calcium levels, and carbon dioxide combining power.
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Affiliation(s)
- Anliu Nie
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shuzeng Zhang
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mingju Cai
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Limei Yu
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jianfeng Li
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiangfen Su
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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5
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Ramírez-Guerrero G, Ronco C. Ultrafiltration Tolerance: A Phenotype That We Need to Recognize. Blood Purif 2024; 53:541-547. [PMID: 38377967 DOI: 10.1159/000537941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/19/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND The evaluation and management of fluid balance are key challenges in critical care patients who require renal replacement therapies because cumulative fluid balance is an independent factor that increases morbidity and mortality in different clinical scenarios. SUMMARY One of the strategies when fluid overload is refractory to diuretics is extracorporeal fluid removal (i.e., net ultrafiltration [UFNET] during kidney replacement therapy). However, problems with UFNET without individualized assessment are cardiovascular events and intradialytic hypotension, events that contribute to decreasing organ perfusion and sympathetic stress. Therefore, we must consider and try to predict the best timing for the start of ultrafiltration and find the point where the patient is most tolerant to ultrafiltration, making a simile to the concept of fluid tolerance. KEY MESSAGES UFNET is a continuous and dynamic process, going through moments of tolerance and intolerance to ultrafiltration; as nephrologists, we must take the necessary measures to move through this period.
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Affiliation(s)
- Gonzalo Ramírez-Guerrero
- International Renal Research Institute of Vicenza (IRRIV), Vicenza, Italy
- Nephrology and Dialysis Unit, Carlos Van Buren Hospital, Valparaíso, Chile
- Department of Medicine, Universidad de Valparaíso, Valparaíso, Chile
| | - Claudio Ronco
- International Renal Research Institute of Vicenza (IRRIV), Vicenza, Italy
- Department of Nephrology, Dialysis and Kidney Transplantation, San Bortolo Hospital, Vicenza, Italy
- Department of Medicine (DIMED), Università degli Studi di Padova, Padova, Italy
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Fuhrman DY, Stenson EK, Alhamoud I, Alobaidi R, Bottari G, Fernandez S, Guzzi F, Haga T, Kaddourah A, Marinari E, Mohamed TH, Morgan CJ, Mottes T, Neumayr TM, Ollberding NJ, Raggi V, Ricci Z, See E, Stanski NL, Zang H, Zangla E, Gist KM. Major Adverse Kidney Events in Pediatric Continuous Kidney Replacement Therapy. JAMA Netw Open 2024; 7:e240243. [PMID: 38393726 PMCID: PMC10891477 DOI: 10.1001/jamanetworkopen.2024.0243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/26/2023] [Indexed: 02/25/2024] Open
Abstract
Importance Continuous kidney replacement therapy (CKRT) is increasingly used in youths with critical illness, but little is known about longer-term outcomes, such as persistent kidney dysfunction, continued need for dialysis, or death. Objective To characterize the incidence and risk factors, including liberation patterns, associated with major adverse kidney events 90 days after CKRT initiation (MAKE-90) in children, adolescents, and young adults. Design, Setting, and Participants This international, multicenter cohort study was conducted among patients aged 0 to 25 years from The Worldwide Exploration of Renal Replacement Outcomes Collaborative in Kidney Disease (WE-ROCK) registry treated with CKRT for acute kidney injury or fluid overload from 2015 to 2021. Exclusion criteria were dialysis dependence, concurrent extracorporeal membrane oxygenation use, or receipt of CKRT for a different indication. Data were analyzed from May 2 to December 14, 2023. Exposure Patient clinical characteristics and CKRT parameters were assessed. CKRT liberation was classified as successful, reinstituted, or not attempted. Successful liberation was defined as the first attempt at CKRT liberation resulting in 72 hours or more without return to dialysis within 28 days of CKRT initiation. Main Outcomes and Measures MAKE-90, including death or persistent kidney dysfunction (dialysis dependence or ≥25% decline in estimated glomerular filtration rate from baseline), were assessed. Results Among 969 patients treated with CKRT (529 males [54.6%]; median [IQR] age, 8.8 [1.7-15.0] years), 630 patients (65.0%) developed MAKE-90. On multivariable analysis, cardiac comorbidity (adjusted odds ratio [aOR], 1.60; 95% CI, 1.08-2.37), longer duration of intensive care unit admission before CKRT initiation (aOR for 6 days vs 1 day, 1.07; 95% CI, 1.02-1.13), and liberation pattern were associated with MAKE-90. In this analysis, patients who successfully liberated from CKRT within 28 days had lower odds of MAKE-90 compared with patients in whom liberation was attempted and failed (aOR, 0.32; 95% CI, 0.22-0.48) and patients without a liberation attempt (aOR, 0.02; 95% CI, 0.01-0.04). Conclusions and Relevance In this study, MAKE-90 occurred in almost two-thirds of the population and patient-level risk factors associated with MAKE-90 included cardiac comorbidity, time to CKRT initiation, and liberation patterns. These findings highlight the high incidence of adverse outcomes in this population and suggest that future prospective studies are needed to better understand liberation patterns and practices.
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Affiliation(s)
- Dana Y. Fuhrman
- University of Pittsburgh Medical Center Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Erin K. Stenson
- Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora
| | - Issa Alhamoud
- University of Iowa Stead Family Children’s Hospital, Carver College of Medicine, Iowa City
| | | | | | - Sarah Fernandez
- Gregorio Marañón University Hospital, School of Medicine, Madrid, Spain
| | | | - Taiki Haga
- Osaka City General Hospital, Osaka, Japan
| | - Ahmad Kaddourah
- Sidra Medicine, Doha, Qatar
- Weill Cornell Medical College, Ar-Rayyan, Qatar
| | | | - Tahagod H. Mohamed
- Nationwide Children’s Hospital, The Heart Center, The Ohio State University College of Medicine, Columbus
| | | | - Theresa Mottes
- Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
| | - Tara M. Neumayr
- Washington University School of Medicine, St Louis Children’s Hospital, St Louis, Missouri
| | - Nicholas J. Ollberding
- Cincinnati Children’s Hospital Medical Center; University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Valeria Raggi
- Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | | | - Emily See
- Royal Children’s Hospital, University of Melbourne, Murdoch Children’s Research Institute, Melbourne, Victoria, Australia
| | - Natalja L. Stanski
- Cincinnati Children’s Hospital Medical Center; University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Huaiyu Zang
- Cincinnati Children’s Hospital Medical Center; University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Katja M. Gist
- Cincinnati Children’s Hospital Medical Center; University of Cincinnati College of Medicine, Cincinnati, Ohio
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7
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See KC, Wong WK. Acute kidney injury and kidney replacement therapy in adults. Singapore Med J 2023; 64:751-757. [PMID: 38047331 PMCID: PMC10775300 DOI: 10.4103/singaporemedj.smj-2022-191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/09/2023] [Indexed: 12/05/2023]
Affiliation(s)
- Kay Choong See
- Division of Respiratory and Critical Care Medicine, Department of Medicine, National University Hospital, Singapore
| | - Weng Kin Wong
- One Future Kidney Care, Mount Elizabeth Hospital, Singapore
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Liu L, Liu D, Hu Z, Wang X, Chao Y, Wu J, Yin W, Zhang H, Zhang L, He W, Zhu R, Xu Q, Yang R, Huo Y, Zhang Q, Liu H, Zhu W, Zhang Q, Li R. Renal hemodynamic evaluation protocol based on the pathophysiological mechanism of acute kidney injury: Critical Care UltraSound Guided-A (KI)BCDE. Ren Fail 2023; 45:2284842. [PMID: 37994455 PMCID: PMC11001348 DOI: 10.1080/0886022x.2023.2284842] [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: 05/02/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023] Open
Abstract
The multiple etiological characteristics of acute kidney injury (AKI) have brought great challenges to its clinical diagnosis and treatment. Renal injury in critically ill patients always indicates hemodynamic injury. The Critical Care UltraSound Guided (CCUSG)-A(KI)BCDE protocol developed by the Chinese Critical Ultrasound Study Group (CCUSG), respectively, includes A(KI) diagnosis and risk assessment and uses B-mode ultrasound, Color doppler ultrasound, spectral Doppler ultrasound, and contrast Enhanced ultrasound to obtain the hemodynamic characteristics of the kidney so that the pathophysiological mechanism of the occurrence and progression of AKI can be captured and the prognosis of AKI can be predicted combined with other clinical information; therefore, the corresponding intervention and treatment strategies can be formulated to achieve targeted, protocolized, and individualized therapy.
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Affiliation(s)
- Lixia Liu
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Dawei Liu
- Department of Intensive Care Department, Peking Union Medical College Hospital, Beijing, China
| | - Zhenjie Hu
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaoting Wang
- Department of Intensive Care Department, Peking Union Medical College Hospital, Beijing, China
| | - Yangong Chao
- Department of Critical Care Medicine, The First Affiliated Hospital of Tsinghua University, Beijing, China
| | - Jun Wu
- Department of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wanhong Yin
- Department of Intensive Care, West China Hospital, Sichuan University, Chengdu, China
| | - Hongmin Zhang
- Department of Intensive Care Department, Peking Union Medical College Hospital, Beijing, China
| | - Lina Zhang
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Wei He
- Department of Intensive Care Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Ran Zhu
- Department of Intensive Care Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Qianghong Xu
- Department of Critical Care Medicine, Zhejiang Hospital, Hangzhou, China
| | - Rongli Yang
- Department of Critical Care Medicine, The Central Hospital of Dalian, Dalian, China
| | - Yan Huo
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Qian Zhang
- Department of Intensive Care Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Haitao Liu
- Department of Critical Care Medicine, The Fourth Hospital of Harbin Medical University, Harbin, China
| | - Weihua Zhu
- Department of Intensive Care Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qian Zhang
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Rong Li
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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9
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Matsuura R, Komaru Y, Hamasaki Y, Nangaku M, Doi K. BENEFIT OF HIGHER BLOOD PRESSURE TARGET IN SEVERE ACUTE KIDNEY INJURY TREATED BY CONTINUOUS RENAL REPLACEMENT THERAPY. Shock 2023; 60:534-538. [PMID: 37625112 DOI: 10.1097/shk.0000000000002207] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
ABSTRACT Introduction : The optimal target of mean arterial pressure (MAP) during continuous renal replacement therapy (CRRT) is unknown. Method : We retrospectively collected the hourly MAP data in acute kidney injury patients requiring CRRT who admitted to the intensive care unit in the University of Tokyo hospital during 2011-2019. Patients who died within 48 h of CRRT start and whose average value of hourly MAPs during the first 48 h was <65 mm Hg were excluded. When the average value of MAP was ≤75 mm Hg or >75 mm Hg, patients were allocated to the low or high target group. We estimated the effect of MAP on mortality and RRT independence at 90 days, using multivariable the Cox regression model and Fine and Gray model. Result : Of the 275 patients we analyzed, 95 patients were in the low group. There are no differences in sex, baseline kidney function, and disease severity. At 90 days, the low target group had higher mortality with 38 deaths (40.0%) compared with 57 deaths (31.7%) in the high target group ( P < 0.05). The adjusted hazard ratio of the low target group (≤75 mm Hg) for mortality was 1.72 (95% CI, 1.08-2.74). In addition, the low target group had a lower rate of RRT independence, with 60 patients (63.2%) compared with 136 patients (75.6%) in the high target group ( P < 0.05). The multivariable analysis revealed that the adjusted hazard ratio of the low target group for RRT independence was 0.74 (95% CI, 0.54-1.01). Conclusion : This study found the association with low MAP and mortality. The association with low MAP and delayed renal recovery was not revealed.
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Affiliation(s)
- Ryo Matsuura
- Department of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, Japan
| | - Yohei Komaru
- Department of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshifumi Hamasaki
- Department of Hemodialysis and Apheresis, The University of Tokyo Hospital, Tokyo, Japan
| | - Masaomi Nangaku
- Department of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, Japan
| | - Kent Doi
- Department of Emergency and Critical Care Medicine, The University of Tokyo Hospital, Tokyo, Japan
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10
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Gervasoni F, Bellocchio F, Rosenberger J, Arkossy O, Ion Titapiccolo J, Kovarova V, Larkin J, Nikam M, Stuard S, Tripepi GL, Usvyat LA, Winter A, Neri L, Zoccali C. Development and validation of AI-based triage support algorithms for prevention of intradialytic hypotension. J Nephrol 2023; 36:2001-2011. [PMID: 37707692 DOI: 10.1007/s40620-023-01741-6] [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: 02/15/2023] [Accepted: 07/19/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND Intradialytic hypotension remains one of the most recurrent complications of dialysis sessions. Inadequate management can lead to adverse outcomes, highlighting the need to develop personalized approaches for the prevention of intradialytic hypotension. Here, we sought to develop and validate two AI-based risk models predicting the occurrence of symptomatic intradialytic hypotension at different time points. METHODS The models were built using the XGBoost algorithm and they predict the occurrence of intradialytic hypotension in the next dialysis session and in the next month. The initial dataset, obtained from routinely collected data in the EuCliD® Database, was split to perform model derivation, training and validation. Model performance was evaluated by concordance statistic and calibration charts; the importance of features was assessed with the Shapley Additive Explanation (SHAP) methodology. RESULTS The final dataset included 1,249,813 dialysis sessions, and the incidence rate of intradialytic hypotension was 10.07% (95% CI 10.02-10.13). Our models retained good discrimination (AUC around 0.8) and a suitable calibration yielding to the selection of three classification thresholds identifying four distinct risk groups. Variables providing the most significant impact on risk estimates were blood pressure dynamics and other metrics mirroring hemodynamic instability over time. CONCLUSIONS Recurrent symptomatic intradialytic hypotension could be reliably and accurately predicted using routinely collected data during dialysis treatment and standard clinical care. Clinical application of these prediction models would allow for personalized risk-based interventions for preventing and managing intradialytic hypotension.
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Affiliation(s)
| | | | - Jaroslav Rosenberger
- FMC-Dialysis Services Slovakia, Kosice, Slovakia
- Medical Faculty, University of PJ Safarik, Kosice, Slovakia
| | - Otto Arkossy
- Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany
| | | | | | | | - Milind Nikam
- Fresenius Medical Care, Singapore, 307684, Singapore
| | - Stefano Stuard
- Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany
| | | | | | - Anke Winter
- Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany
| | - Luca Neri
- Fresenius Medical Care Italia SpA, Palazzo Pignano, Italy.
| | - Carmine Zoccali
- Renal Research Institute, New York, USA
- Associazione Ipertensione Nefrologia e Trapianto Renale (IPNET) c/o Nefrologia e CNR, Grande Ospedale Metropolitano, Reggio Calabria, Italy
- Biologia E Genetica Molecolare (BIOGEM) Research Center, Ariano Irpino, Avellino, Italy
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11
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Nascimento de Moura AC, Mota SMB, Holanda FMT, Meneses GC, Bezerra GF, Martins AMC, Libório AB. Syndecan-1 predicts hemodynamic instability in critically ill patients under intermittent hemodialysis. Clin Kidney J 2023; 16:1132-1138. [PMID: 37398688 PMCID: PMC10310513 DOI: 10.1093/ckj/sfad043] [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: 11/17/2022] [Indexed: 09/22/2024] Open
Abstract
Introduction Up to 70% of intermittent hemodialysis (IHD) sessions in critically ill patients are complicated by hemodynamic instability. Although several clinical characteristics have been associated with hemodynamic instability during IHD, the discriminatory capacity of predicting such events during IHD sessions is less defined. In the present study, we aimed to analyse endothelium-related biomarkers collected before IHD sessions and their capacity to predict hemodynamic instability related to IHD in critically ill patients. Methods In this prospective observational study, we enrolled adult critically ill patients with acute kidney injury who required fluid removal with IHD. We screened each included patient daily for IHD sessions. Thirty minutes before each IHD session, each patient had a 5-mL blood collection for measurement of endothelial biomarkers-vascular cell adhesion molecule-1 (VCAM-1), angiopoietin-1 and -2 (AGPT1 and AGPT2) and syndecan-1. Hemodynamic instability during IHD was the main outcome. Analyses were adjusted for variables already known to be associated with hemodynamic instability during IHD. Results Plasma syndecan-1 was the only endothelium-related biomarker independently associated with hemodynamic instability. The accuracy of syndecan-1 for predicting hemodynamic instability during IHD was moderate [area under the receiver operating characteristic curve 0.78 (95% confidence interval 0.68-0.89)]. The addition of syndecan-1 improved the discrimination capacity of a clinical model from 0.67 to 0.82 (P < .001) and improved risk prediction, as measured by net reclassification improvement. Conclusion Syndecan-1 is associated with hemodynamic instability during IHD in critically ill patients. It may be useful to identify patients who are at increased risk for such events and suggests that endothelial glycocalyx derangement is involved in the pathophysiology of IHD-related hemodynamic instability.
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Affiliation(s)
| | | | | | - Gdayllon Cavalcante Meneses
- Medical Sciences Postgraduate Program, Department of Internal Medicine, Medical School, Federal University of Ceará, Brazil
| | - Gabriela Freire Bezerra
- Pharmacology Postgraduate Program, Department of Physiology and Pharmacology, Medical School, Federal University of Ceará, Brazil
| | - Alice Maria Costa Martins
- Clinical and Toxicological Analysis Department, School of Pharmacy, Federal University of Ceará, Brazil
| | - Alexandre Braga Libório
- Medical Sciences Postgraduate Program, Universidade de Fortaleza – UNIFOR, Fortaleza, Ceará, Brazil
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12
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Ledoux-Hutchinson L, Wald R, Malbrain ML, Carrier FM, Bagshaw SM, Bellomo R, Adhikari NK, Gallagher M, Silver SA, Bouchard J, Connor Jr MJ, Clark EG, Côté JM, Neyra JA, Denault A, Beaubien-Souligny W. Fluid Management for Critically Ill Patients with Acute Kidney Injury Receiving Kidney Replacement Therapy: An International Survey. Clin J Am Soc Nephrol 2023; 18:705-715. [PMID: 36975194 PMCID: PMC10278767 DOI: 10.2215/cjn.0000000000000157] [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] [Received: 09/29/2022] [Accepted: 03/13/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND In critically ill patients receiving KRT, high ultrafiltration rates and persistent fluid accumulation are associated with adverse outcomes. The purpose of this international survey was to evaluate current practices and evidence gaps related to fluid removal with KRT in critically ill patients. METHODS This was a multinational, web-based survey distributed by seven networks comprising nephrologists and intensivists. Physicians involved in the care of critically ill patients were invited to complete a 39-question survey about fluid management practices on KRT. The survey was distributed from September 2021 to December 2021. RESULTS There were 757 respondents from 96 countries (response rate of 65%). Most respondents practiced adult medicine (89%) and worked in an academic center (69%). The majority (91%) reported aiming for a 0.5- to 2-L negative fluid balance per day when fluid removal is indicated, although there was important variability in what respondents considered a safe maximal target. Intensivists were more likely than nephrologists to use adjunct volume status assessment methods ( i.e. , ultrasound, hemodynamic markers, and intra-abdominal pressure), while nephrologists were more likely to deploy cointerventions aimed at improving tolerance to fluid removal ( i.e. , osmotic agents and low-temperature dialysate). There was a broad consensus that rapid decongestion should be prioritized when fluid accumulation is present, but the prevention of hypotension was also reported as a competing priority. A majority (77%) agreed that performing trials that compare fluid management strategies would be ethical and clinically relevant. CONCLUSIONS We have identified multiple areas of variability in current practice of fluid management for patients receiving KRT. Most nephrologists and intensivists agreed that several knowledge gaps related to fluid removal strategies should be investigated in future randomized controlled trials.
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Affiliation(s)
| | - Ron Wald
- Division of Nephrology, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Manu L.N.G. Malbrain
- First Department of Anaesthesiology and Intensive Therapy, Medical University of Lublin, Lublin, Poland
- Medical Data Management, Medaman, Geel, Belgium
- International Fluid Academy, Lovenjoel, Belgium
| | - François Martin Carrier
- Centre de recherche du CHUM, Montreal, Quebec, Canada
- Critical Care Division, Department of Anesthesiology, Department of Medicine, Centre Hospitalier de l’Université de Montréal, Montreal, Quebec, Canada
| | - Sean M. Bagshaw
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta and Alberta Health Services, Edmonton, Alberta, Canada
| | - Rinaldo Bellomo
- Department of Critical Care, University of Melbourne, Melbourne, Victoria, Australia
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia
| | - Neill K.J. Adhikari
- Interdepartmental Division of Critical Care Medicine, Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Martin Gallagher
- Renal Division, The George Institute for Global Health, University of NSW, Sydney, New South Wales, Australia
| | - Samuel A. Silver
- Division of Nephrology, Kingston Health Sciences Center, Queen's University, Kingston, Ontario, Canada
| | - Josée Bouchard
- Division of Nephrology, Sacré-Coeur Hospital, Montreal, Quebec, Canada
| | - Michael J. Connor Jr
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Division of Renal Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Edward G. Clark
- Division of Nephrology, Department of Medicine, Anesthesiology, Montreal Heart Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Jean-Maxime Côté
- Centre de recherche du CHUM, Montreal, Quebec, Canada
- Service of Nephrology, Centre Hospitalier de l’Université de Montréal, Montreal, Quebec, Canada
| | - Javier A. Neyra
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
| | - André Denault
- Department of Anesthesiology, Montreal Heart Institute, Montreal, Quebec, Canada
| | - William Beaubien-Souligny
- Centre de recherche du CHUM, Montreal, Quebec, Canada
- Service of Nephrology, Centre Hospitalier de l’Université de Montréal, Montreal, Quebec, Canada
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13
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White KC, Laupland KB, See E, Serpa-Neto A, Bellomo R. Impact of Continuous Renal Replacement Therapy Initiation on Urine Output and Fluid Balance: A Multicenter Study. Blood Purif 2023; 52:532-540. [PMID: 37071971 PMCID: PMC11226201 DOI: 10.1159/000530146] [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: 07/11/2022] [Accepted: 03/09/2023] [Indexed: 04/20/2023]
Abstract
INTRODUCTION The effect of continuous renal replacement therapy (CRRT) on renal function is poorly understood. However, the initiation of CRRT may induce oliguria. We aimed to investigate the impact of CRRT commencement on urine output (UO). METHODS This was a retrospective cohort study in two intensive care units. We included all patients who underwent CRRT and collected data on hourly UO and fluid balance before and after CRRT commencement. We performed an interrupted time series analysis using segmented regression to assess the relationship between CRRT commencement and UO. RESULTS We studied 1,057 patients. Median age was 60.7 years (interquartile range [IQR], 48.3-70.6), and the median APACHE III was 95 (IQR, 76-115). Median time to CRRT was 17 h (IQR, 5-49). With start of CRRT, the absolute difference in mean hourly UO and mean hourly fluid balance was -27.0 mL/h (95% CI: -32.1 to -21.8; p value < 0.01) and - 129.3 mL/h (95% CI: -169.2 to -133.3), respectively. When controlling for pre-CRRT temporal trends and patient characteristics, there was a rapid post-initiation decrease in UO (-0.12 mL/kg/h; 95% CI: -0.17 to -0.08; p value < 0.01) and fluid balance (-78.1 mL/h; 95% CI: -87.9 to -68.3; p value < 0.01), which was sustained over the first 24 h of CRRT. Change in UO and fluid balance were only weakly correlated (r -0.29; 95% CI: -0.35 to -0.23; p value < 0.01). CONCLUSION Commencement of CRRT was associated with a significant decrease in UO that could not be explained by extracorporeal fluid removal.
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Affiliation(s)
- Kyle Christopher White
- Intensive Care Unit, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Kevin B Laupland
- Department of Intensive Care Services, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
- Queensland University of Technology (QUT), Brisbane, Queensland, Australia
| | - Emily See
- School of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Department of Critical Care, University of Melbourne, Melbourne, Victoria, Australia
- Department of Intensive Care, Austin Hospital, Heidelberg, Victoria, Australia
- Department of Nephrology, The Royal Melbourne Hospital, Parkville, Victoria, Australia
- Department of Nephrology, The Royal Children's Hospital, Parkville, Victoria, Australia
| | - Ary Serpa-Neto
- Department of Critical Care, University of Melbourne, Melbourne, Victoria, Australia
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Rinaldo Bellomo
- Department of Critical Care, University of Melbourne, Melbourne, Victoria, Australia
- Department of Intensive Care, Austin Hospital, Heidelberg, Victoria, Australia
- Department of Nephrology, The Royal Children's Hospital, Parkville, Victoria, Australia
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14
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Yildiz AB, Vehbi S, Covic A, Burlacu A, Covic A, Kanbay M. An update review on hemodynamic instability in renal replacement therapy patients. Int Urol Nephrol 2023; 55:929-942. [PMID: 36308664 DOI: 10.1007/s11255-022-03389-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/15/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hemodynamic instability in patients undergoing kidney replacement therapy (KRT) is one of the most common and essential factors influencing mortality, morbidity, and the quality of life in this patient population. METHOD Decreased cardiac preload, reduced systemic vascular resistance, redistribution of fluids, fluid overload, inflammatory factors, and changes in plasma osmolality have all been implicated in the pathophysiology of hemodynamic instability associated with KRT. RESULT A cascade of these detrimental mechanisms may ultimately cause intra-dialytic hypotension, reduced tissue perfusion, and impaired kidney rehabilitation. Multiple parameters, including dialysate composition, temperature, posture during dialysis sessions, physical activity, fluid administrations, dialysis timing, and specific pharmacologic agents, have been studied as possible management modalities. Nevertheless, a clear consensus is not reached. CONCLUSION This review includes a thorough investigation of the literature on hemodynamic instability in KRT patients, providing insight on interventions that may potentially minimize factors leading to hemodynamic instability.
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Affiliation(s)
- Abdullah B Yildiz
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Sezan Vehbi
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Andreea Covic
- Department of Nephrology, Grigore T. Popa' University of Medicine, Iasi, Romania
| | - Alexandru Burlacu
- Department of Nephrology, Grigore T. Popa' University of Medicine, Iasi, Romania
| | - Adrian Covic
- Department of Nephrology, Grigore T. Popa' University of Medicine, Iasi, Romania
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koc University School of Medicine, 34010, Istanbul, Turkey.
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15
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Kim SG, Yun D, Lee J, Kim YC, Kim DK, Oh KH, Joo KW, Kim YS, Han SS. Impact of intradialytic hypotension on mortality following the transition from continuous renal replacement therapy to intermittent hemodialysis. Acute Crit Care 2023; 38:86-94. [PMID: 36442470 PMCID: PMC10030245 DOI: 10.4266/acc.2022.00948] [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: 08/01/2022] [Revised: 09/27/2022] [Accepted: 10/14/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND The transition of dialysis modalities from continuous renal replacement therapy (CRRT) to intermittent hemodialysis (iHD) is frequently conducted during the recovery phase of critically ill patients with acute kidney injury. Herein, we addressed the occurrence of intradialytic hypotension (IDH) after this transition, and its association with the mortality risk. METHODS A total of 541 patients with acute kidney injury who attempted to transition from CRRT to iHD at Seoul National University Hospital, Korea from 2010 to 2020 were retrospectively collected. IDH was defined as a discontinuation of dialysis because of hemodynamic instability plus a nadir systolic blood pressure <90 mm Hg or a decrease in systolic blood pressure ≥30 mm Hg during the first session of iHD. Odds ratios (ORs) of outcomes, such as in-hospital mortality and weaning from RRT, were measured using a logistic regression model after adjusting for multiple variables. RESULTS IDH occurred in 197 patients (36%), and their mortality rate (44%) was higher than that of those without IDH (19%; OR, 2.64; 95% confidence interval [CI], 1.70-4.08). For patients exhibiting IDH, the iHD sessions delayed successful weaning from RRT (OR, 0.62; 95% CI, 0.43-0.90) compared with sessions on those without IDH. Factors such as low blood pressure, high pulse rate, low urine output, use of mechanical ventilations and vasopressors, and hypoalbuminemia were associated with IDH risk. CONCLUSIONS IDH occurrence following the transition from CRRT to iHD is associated with high mortality and delayed weaning from RRT.
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Affiliation(s)
- Seong Geun Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Donghwan Yun
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jinwoo Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Chul Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Ki Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kwon Wook Joo
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yon Su Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Seung Seok Han
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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16
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Chan RJ, Helmeczi W, Canney M, Clark EG. Management of Intermittent Hemodialysis in the Critically Ill Patient. Clin J Am Soc Nephrol 2023; 18:245-255. [PMID: 35840348 PMCID: PMC10103228 DOI: 10.2215/cjn.04000422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Intermittent hemodialysis remains a cornerstone of extracorporeal KRT in the intensive care unit, either as a first-line therapy for AKI or a second-line therapy when patients transition from a continuous or prolonged intermittent therapy. Intermittent hemodialysis is usually provided 3 days per week in this setting on the basis that no clinical benefits have been demonstrated with more frequent hemodialysis. This should not detract from the importance of continually assessing and refining the hemodialysis prescription (including the need for extra treatments) according to dynamic changes in extracellular volume and other parameters, and ensuring that an adequate dose of hemodialysis is being delivered to the patient. Compared with other KRT modalities, the cardinal challenge encountered during intermittent hemodialysis is hemodynamic instability. This phenomenon occurs when reductions in intravascular volume, as a consequence of ultrafiltration and/or osmotic shifts, outpace compensatory plasma refilling from the extravascular space. Myocardial stunning, triggered by intermittent hemodialysis, and independent of ultrafiltration, may also contribute. The hemodynamic effect of intermittent hemodialysis is likely magnified in patients who are critically ill due to an inability to mount sufficient compensatory physiologic responses in the context of multiorgan dysfunction. Of the many interventions that have undergone testing to mitigate hemodynamic instability related to KRT, the best evidence exists for cooling the dialysate and raising the dialysate sodium concentration. Unfortunately, the evidence supporting routine use of these and other interventions is weak owing to poor study quality and limited sample sizes. Intermittent hemodialysis will continue to be an important and commonly used KRT modality for AKI in patients with critical illness, especially in jurisdictions where resources are limited. There is an urgent need to harmonize the definition of hemodynamic instability related to KRT in clinical trials and robustly test strategies to combat it in this vulnerable patient population.
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Affiliation(s)
- Ryan J. Chan
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Wryan Helmeczi
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Mark Canney
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Edward G. Clark
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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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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Buzancais A, Brunot V, Larcher R, Tudesq JJ, Platon L, Besnard N, Amalric M, Daubin D, Corne P, Moulaire V, Jung B, Canaud B, Cristol JP, Klouche K. Sodium flux during hemodialysis and hemodiafiltration treatment of acute kidney injury: Effects of dialysate and infusate sodium concentration at 140 and 145 mmol/L. Artif Organs 2022. [PMID: 36527419 DOI: 10.1111/aor.14487] [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: 08/31/2022] [Revised: 11/22/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND A higher sodium (Na) dialysate concentration is recommended during renal replacement therapy (RRT) of acute kidney injury (AKI) to improve intradialytic hemodynamic tolerance, but it may lead to Na loading to the patient. We aimed to evaluate Na flux according to Na dialysate and infusate concentrations at 140 and 145 mmol/L during hemodialysis (HD) and hemodiafiltration (HDF). METHODS Fourteen AKI patients that underwent consecutive HD or HDF sessions with Na dialysate/infusate at 140 and 145 mmol/L were included. Per-dialytic flux of Na was estimated using mean sodium logarithmic concentration including diffusive and convective influx. We compared the flux of sodium between HD140 and 145, and between HDF140 and 145. RESULTS Nine HD140, ten HDF140, nine HD145, and 11 HDF145 sessions were analyzed. A Na gradient from the dialysate/replacement fluid to the patient was observed with dialysate/infusate Na at 145 mmol/L in both HD and HDF (p = 0.01). The comparison of HD145 to HD140 showed that higher Na dialysate induced a diffusive Na gradient to the patient (163 mmol vs. -25 mmol, p = 0.004) and that of HDF145 to -140 (211 vs. 36 mmol, p = 0.03) as well. Intradialytic hemodynamic tolerance was similar across all RRT sessions. CONCLUSIONS During both HD and HDF, a substantial Na loading occurred with a Na dialysate and infusate at 145 mmol/L. This Na loading is smaller in HDF with Na dialysate and infusate concentration at 140 mmol/L and inversed with HD140. Clinical and intradialytic hemodynamic tolerance was fair regardless of Na dialysate and infusate.
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Affiliation(s)
- Aurèle Buzancais
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Vincent Brunot
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Romaric Larcher
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France.,PhyMedExp, INSERM (French Institute of Health and Medical Research), CNRS (French National Centre for Scientific Research), University of Montpellier, School of Medicine, Montpellier, France
| | - Jean-Jacques Tudesq
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Laura Platon
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Noémie Besnard
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Matthieu Amalric
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Delphine Daubin
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Philippe Corne
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Valérie Moulaire
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Boris Jung
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France.,PhyMedExp, INSERM (French Institute of Health and Medical Research), CNRS (French National Centre for Scientific Research), University of Montpellier, School of Medicine, Montpellier, France.,University of Montpellier, UFR of Medicine, Montpellier, France
| | - Bernard Canaud
- University of Montpellier, UFR of Medicine, Montpellier, France.,Global Medical Office, Fresenius Medical Care Deutschland, Bad Homburg, Germany
| | - Jean-Paul Cristol
- University of Montpellier, UFR of Medicine, Montpellier, France.,Biochemistry/Hormonology Department, Lapeyronie University Hospital, University of Montpellier, Montpellier, France
| | - Kada Klouche
- Department of Intensive Care Medicine, Lapeyronie University Hospital, University of Montpellier, Montpellier, France.,PhyMedExp, INSERM (French Institute of Health and Medical Research), CNRS (French National Centre for Scientific Research), University of Montpellier, School of Medicine, Montpellier, France.,University of Montpellier, UFR of Medicine, Montpellier, France
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19
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Wald R, Beaubien-Souligny W, Chanchlani R, Clark EG, Neyra JA, Ostermann M, Silver SA, Vaara S, Zarbock A, Bagshaw SM. Delivering optimal renal replacement therapy to critically ill patients with acute kidney injury. Intensive Care Med 2022; 48:1368-1381. [PMID: 36066597 DOI: 10.1007/s00134-022-06851-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/29/2022] [Indexed: 02/04/2023]
Abstract
Critical illness is often complicated by acute kidney injury (AKI). In patients with severe AKI, renal replacement therapy (RRT) is deployed to address metabolic dysfunction and volume excess until kidney function recovers. This review is intended to provide a comprehensive update on key aspects of RRT prescription and delivery to critically ill patients. Recently completed trials have enhanced the evidence base regarding several RRT practices, most notably the timing of RRT initiation and anticoagulation for continuous therapies. Better evidence is still needed to clarify several aspects of care including optimal targets for ultrafiltration and effective strategies for RRT weaning and discontinuation.
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Affiliation(s)
- Ron Wald
- Division of Nephrology, St. Michael's Hospital and the University of Toronto, 61 Queen Street East, 9-140, Toronto, ON, M5C 2T2, Canada. .,Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.
| | | | - Rahul Chanchlani
- Division of Pediatric Nephrology, Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - Edward G Clark
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Javier A Neyra
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Marlies Ostermann
- Department of Critical Care Medicine, Guys and St. Thomas Hospital, London, UK
| | - Samuel A Silver
- Division of Nephrology, Kingston Health Sciences Center, Queen's University, Kingston, ON, Canada
| | - Suvi Vaara
- Division of Intensive Care Medicine, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care and Pain Medicine, Muenster, Germany
| | - Sean M Bagshaw
- Department of Critical Care Medicine, University of Alberta and Alberta Health Services, Edmonton, AB, Canada
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20
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Bitker L, Pradat P, Dupuis C, Klouche K, Illinger J, Souweine B, Richard JC. Fluid balance neutralization secured by hemodynamic monitoring versus protocolized standard of care in critically ill patients requiring continuous renal replacement therapy: study protocol of the GO NEUTRAL randomized controlled trial. Trials 2022; 23:798. [PMID: 36138465 PMCID: PMC9494882 DOI: 10.1186/s13063-022-06735-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 09/12/2022] [Indexed: 11/17/2022] Open
Abstract
Background Fluid overload is associated with worse outcome in critically ill patients requiring continuous renal replacement therapy (CRRT). Net ultrafiltration (UFNET) allows precise control of the fluid removal but is frequently ceased due to hemodynamic instability episodes. However, approximately 50% of the hemodynamic instability episodes in ICU patients treated with CRRT are not associated with preload dependence (i.e., are not related to a decrease in cardiac preload), suggesting that volume removal is not responsible for these episodes of hemodynamic impairment. The use of advanced hemodynamic monitoring, comprising continuous cardiac output monitoring to repeatedly assess preload dependency, could allow securing UFNET to allow fluid balance control and prevent fluid overload. Methods The GO NEUTRAL trial is a multicenter, open-labeled, randomized, controlled, superiority trial with parallel groups and balanced randomization with a 1:1 ratio. The trial will enroll adult patients with acute circulatory failure treated with vasopressors and severe acute kidney injury requiring CRRT who already have been equipped with a continuous cardiac output monitoring device. After informed consent, patients will be randomized into two groups. The control group will receive protocolized fluid removal with an UFNET rate set to 0–25 ml h−1 between inclusion and H72 of inclusion. The intervention group will be treated with an UFNET rate set on the CRRT of at least 100 ml h−1 between inclusion and H72 of inclusion if hemodynamically tolerated based on a protocolized hemodynamic protocol aiming to adjust UFNET based on cardiac output, arterial lactate concentration, and preload dependence assessment by postural maneuvers, performed regularly during nursing rounds, and in case of a hemodynamic instability episode. The primary outcome of the study will be the cumulative fluid balance between inclusion and H72 of inclusion. Randomization will be generated using random block sizes and stratified based on fluid overload status at inclusion. The main outcome will be analyzed in the modified intention-to-treat population, defined as all alive patients at H72 of inclusion, based on their initial allocation group. Discussion We present in the present protocol all study procedures in regard to the achievement of the GO NEUTRAL trial, to prevent biased analysis of trial outcomes and improve the transparency of the trial result report. Enrollment of patients in the GO NEUTRAL trial has started on June 31, 2021, and is ongoing. Trial registration ClinicalTrials.gov NCT04801784. Registered on March 12, 2021, before the start of inclusion. Supplementary Information The online version contains supplementary material available at 10.1186/s13063-022-06735-6.
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Affiliation(s)
- Laurent Bitker
- Service de Médecine Intensive - Réanimation, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France. .,Université Claude Bernard Lyon 1, Lyon, France. .,Univ Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, CNRS, Inserm, CREATIS UMR 5220, U1294, Villeurbanne, France.
| | - Pierre Pradat
- Centre de Recherche Clinique, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | - Claire Dupuis
- Service de Médecine Intensive - Réanimation, hôpital Gabriel Montpied, Clermont Ferrand, France
| | - Kada Klouche
- Service de Médecine Intensive - Réanimation, Hôpital Lapeyronnie, Montpellier, France
| | - Julien Illinger
- Service de Médecine Intensive - Réanimation, hôpital Nord-Ouest, Villefranche sur Saône, France
| | - Bertrand Souweine
- Service de Médecine Intensive - Réanimation, hôpital Gabriel Montpied, Clermont Ferrand, France
| | - Jean-Christophe Richard
- Service de Médecine Intensive - Réanimation, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France.,Univ Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, CNRS, Inserm, CREATIS UMR 5220, U1294, Villeurbanne, France
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21
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Li Y, Li H, Guo J, Wang Y, Zhang D. Coupled plasma filtration adsorption for the treatment of sepsis or septic shock: a systematic review and meta-analysis. BMC Infect Dis 2022; 22:714. [PMID: 36038815 PMCID: PMC9422100 DOI: 10.1186/s12879-022-07689-5] [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: 06/07/2022] [Accepted: 08/18/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The effect of coupled plasma filtration adsorption (CPFA) for the treatment of sepsis or septic shock is controversial. A systematic review and meta-analysis was performed to evaluate the impact of CPFA on all-cause mortality in patients with sepsis or septic shock. METHODS We searched the PubMed, Cochrane, and Embase databases for randomized controlled trials (RCTs) and cohort studies from inception to the 1st of May 2022. We included studies involving patients (˃ 14 years) with sepsis or septic shock. All authors reported our primary outcome of all-cause mortality (hospital mortality, 28-day mortality or 30-day mortality). Results were expressed as odds ratio (OR) with accompanying 95% confidence interval (CI). RESULTS Six studies including 537 patients were included. The primary outcome of this meta-analysis showed that the all-cause mortality was about 54.2% (119/243 in the CPFA group and 172/294 in the control group). There was no statistically significant difference in the all-cause mortality between two groups (odds ratio [OR] = 0.75; 95% CI 0.53 to 1.06; P = 0.11; Chi2 = 14.04; I2 = 64%). CONCLUSIONS The treatment of CPFA failed to decrease all-cause mortality of sepsis or septic shock patients. Further large-scale randomized controlled trials (RCTs) evaluating the ability of this therapy to improve clinical outcomes are still required to confirm these results.
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Affiliation(s)
- Yuting Li
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, 130021, Jilin, China
| | - Hongxiang Li
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, 130021, Jilin, China
| | - Jianxing Guo
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, 130021, Jilin, China
| | - Youquan Wang
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, 130021, Jilin, China
| | - Dong Zhang
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, 130021, Jilin, China.
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22
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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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23
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Li P, Huang Y, Wong A. An analysis of non-nutritive calories from propofol, dextrose, and citrate among critically ill patients receiving continuous renal replacement therapy. JPEN J Parenter Enteral Nutr 2022; 46:1883-1891. [PMID: 35589384 DOI: 10.1002/jpen.2405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/10/2022] [Accepted: 05/16/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Propofol, dextrose, and citrate infusions are necessary treatment modalities in the intensive care units (ICUs). They are, however, a potential source of non-nutritive calories (NNCs) which may cause over-feeding and adverse complications. The literature surrounding the role of NNCs is limited. We aimed to examine the energy contribution of NNCs. Our secondary aim is to assess the nutritional impact of NNCs, especially among patients receiving continuous renal replacement therapy (CRRT). MATERIALS /METHODS We enrolled 177 mechanically ventilated patients admitted to medical-surgical ICUs from August to December 2019. Patients were monitored over the first 7 days of admission. Infusion rates of EN/PN and NNCs, as well as clinical characteristics, were examined. Patients receiving CRRT were compared to those without. RESULTS In total, 24% received additional energy from citrate. Patients received a maximum of 331kcal from citrate, 492kcal from propofol, and 992kcal from dextrose per ICU day. CRRT-group achieved higher total energy on the first two days (Day 1 - 55.1% vs. 46.4%; p=0.008, Day 2 - 73.2% vs. 55.4%, p=0.025). They also received higher mean NNCs on all days, except for Day 1 (p=0.068). CONCLUSION NNCs, especially citrate, are significant sources of energy. Patients receiving CRRT may have greater nutritional risk. There should be close monitoring and adaption of energy prescription accordingly to prevent over-feeding. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Priscilla Li
- Department of Dietetics and Food Services, Changi General Hospital, Singapore
| | - Yingxiao Huang
- Department of Dietetics and Food Services, Changi General Hospital, Singapore
| | - Alvin Wong
- Department of Dietetics and Food Services, Changi General Hospital, Singapore
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24
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Poole D, D'Arrigo S. Coupled plasma filtration and adsorption for the treatment of septic shock. Intensive Care Med 2022; 48:493-495. [PMID: 35103825 DOI: 10.1007/s00134-022-06632-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Daniele Poole
- Operative Unit of Anesthesia and Intensive Care, S. Martino Hospital, Belluno, Italy.
| | - Sonia D'Arrigo
- Department of Intensive Care, Emergency Medicine and Anaesthesiology, Fondazione Policlinico Universitario A. Gemelli-IRCCS, Rome, Italy
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25
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Clark EG, McIntyre L, Watpool I, Kong JWY, Ramsay T, Sabri E, Canney M, Hundemer GL, Brown PA, Sood MM, Hiremath S. Intravenous albumin for the prevention of hemodynamic instability during sustained low-efficiency dialysis: a randomized controlled feasibility trial (The SAFER-SLED Study). Ann Intensive Care 2021; 11:174. [PMID: 34902089 PMCID: PMC8669086 DOI: 10.1186/s13613-021-00962-x] [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: 08/05/2021] [Accepted: 11/30/2021] [Indexed: 01/05/2023] Open
Abstract
Background Hemodynamic instability is a frequent complication of sustained low-efficiency dialysis (SLED) treatments in the ICU. Intravenous hyperoncotic albumin may prevent hypotension and facilitate ultrafiltration. In this feasibility trial, we sought to determine if a future trial, powered to evaluate clinically relevant outcomes, is feasible. Methods This single-center, blinded, placebo-controlled, randomized feasibility trial included patients with acute kidney injury who started SLED in the ICU. Patients were randomized to receive 25% albumin versus 0.9% saline (control) as 100 mL boluses at the start and midway through SLED, for up to 10 sessions. The recruitment rate and other feasibility outcomes were determined. Secondary exploratory outcomes included ultrafiltration volumes and metrics of hemodynamic instability. Results Sixty patients (271 SLED sessions) were recruited over 10 months. Age and severity of illness were similar between study groups. Most had septic shock and required vasopressor support at baseline. Protocol adherence occurred for 244 sessions (90%); no patients were lost to follow-up; no study-related adverse events were observed; open label albumin use was 9% and 15% in the albumin and saline arms, respectively. Ultrafiltration volumes were not significantly different. Compared to the saline group, the albumin group experienced less hemodynamic instability across all definitions assessed including a smaller absolute decrease in systolic blood pressure (mean difference 10.0 mmHg, 95% confidence interval 5.2–14.8); however, there were significant baseline differences in the groups with respect to vasopressor use prior to SLED sessions (80% vs 61% for albumin and saline groups, respectively). Conclusions The efficacy of using hyperoncotic albumin to prevent hemodynamic instability in critically ill patients receiving SLED remains unclear. A larger trial to evaluate its impact in this setting, including evaluating clinically relevant outcomes, is feasible. Trial registration ClinicalTrials.gov (NCT03665311); First Posted: Sept 11th, 2018. https://clinicaltrials.gov/ct2/show/NCT03665311?term=NCT03665311&draw=2&rank=1 Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00962-x.
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Affiliation(s)
- Edward G Clark
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada. .,Ottawa Hospital Research Institute, Ottawa, ON, Canada. .,The Ottawa Hospital-Riverside Campus, 1967 Riverside Drive, Ottawa, ON, K1H 7W9, Canada.
| | - Lauralyn McIntyre
- Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Division of Critical Care, Department of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Irene Watpool
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | | | - Tim Ramsay
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Elham Sabri
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Mark Canney
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada.,Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Gregory L Hundemer
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada.,Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Pierre-Antoine Brown
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada.,Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Manish M Sood
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada.,Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Swapnil Hiremath
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada.,Ottawa Hospital Research Institute, Ottawa, ON, Canada
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26
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Lin J, Zhuang HZ, Zhi DY, Qi Z, Bai J, Dong L, Liu S, Duan M. Impact of Cumulative Fluid Balance During Continuous Renal Replacement Therapy on Mortality in Patients With Septic Acute Kidney Injury: A Retrospective Cohort Study. Front Med (Lausanne) 2021; 8:762112. [PMID: 34869467 PMCID: PMC8636134 DOI: 10.3389/fmed.2021.762112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 10/01/2021] [Indexed: 11/25/2022] Open
Abstract
Background: The clinicians often use continuous renal replacement therapy (CRRT) for the fluid management of patients with septic acute kidney injury (AKI). However, there is limited knowledge of the effects of changes in fluid balance (FB) on CRRT and its association with outcomes in patients with septic AKI. Objective: This study aimed to determine the association of cumulative FB (CFB) during treatment with 28-day all-cause mortality in the patients with septic AKI who require CRRT. Methods: This retrospective observational study examined patients who received CRRT due to septic AKI in a mixed intensive care unit (ICU) of a tertiary teaching hospital between January 2015 and December 2018. The patients were divided into three groups—negative FB, even FB, and positive FB—based on the CFB during CRRT. The primary outcome was 28-day all-cause mortality. Results: We examined 227 eligible patients and the mean age was 62.4 ± 18.3 years. The even FB group had a significantly lower 28-day mortality (43.0%, p = 0.007) than the positive FB group (72.7%) and the negative FB group (54.8%). The unadjusted and adjusted Cox regression models indicated that the positive FB group had an increased risk for 28-day all-cause mortality relative to the even FB group. A restricted cubic splines model indicated a J-shaped association between the CFB and 28-day all-cause mortality in the unadjusted model. Conclusion: Among the critically ill patients with septic AKI who require CRRT, those with positive FB had a higher mortality rate than those with even FB.
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Affiliation(s)
- Jin Lin
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hai Zhou Zhuang
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - De Yuan Zhi
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhili Qi
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jing Bai
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lei Dong
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Shuai Liu
- Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Meili Duan
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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27
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Wu B, Shen Y, Peng Y, Xing C, Mao H. The Association of an Early Net Ultrafiltration Rate and 28-Day Mortality in Patients Receiving Continuous Kidney Replacement Therapy. Front Med (Lausanne) 2021; 8:766557. [PMID: 34926509 PMCID: PMC8674682 DOI: 10.3389/fmed.2021.766557] [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: 08/29/2021] [Accepted: 11/04/2021] [Indexed: 11/13/2022] Open
Abstract
Background: An early net ultrafiltration (NUF) rate may be associated with prognosis in patients receiving continuous kidney replacement therapy (CKRT). In this study, we tested whether high or low early NUF rates in patients treated with CKRT were associated with increased mortality. Methods: We conducted a retrospective, observational study among all patients in the Medical Information Mart for Intensive Care IV database who received CKRT for more than 24 h within 14 days after intensive care unit admission. We defined the early (initial 48 h) NUF rate as the amount of fluid removal per hour adjusted by the patients' weight and took it as a classified variable (low rate: <1.6, moderate rate: 1.6-3.1 and high rate: > 3.1 ml/kg/h). The association between 28-day mortality and the NUF rate was analyzed by logistic regression and mediation analyses. Results: A total of 911 patients were included in our study. The median NUF rate was 2.71 (interquartile range 1.90-3.86) ml/kg/h and the 28-day mortality was 40.1%. Compared with the moderate NUF rate, the low NUF rate (adjusted odds ratio 1.56, 95% CI 1.04-2.35, p = 0.032) and high NUF rate (adjusted odds ratio 1.43, 95% CI 1.02-2.01, p = 0.040) were associated with higher 28-day mortality. The putative effect of high or low NUF rates on 28 day mortality was not direct [adjusted average direct effects (ADE) for a low NUF rate = 0.92, p = 0.064; adjusted ADE for a high NUF rate = 1.03, p = 0.096], but mediated by effects of the NUF rate on fluid balance during the same period [adjusted average causal mediation effects (ACME) 0.96, p = 0.010 for a low NUF rate; adjusted ACME 0.99, p = 0.042 for a high NUF rate]. Moreover, we found an increase trend in the NUF rate corresponding to the lowest mortality when fluid input increased. Conclusion: Compared with NUF rates between 1.6-3.1 ml/kg/h in the first 48 h of CKRT, NUF rates > 3.1 and <1.6 ml/kg/h were associated with higher mortality.
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Affiliation(s)
| | | | | | | | - Huijuan Mao
- Department of Nephrology, Jiangsu Province Hospital/The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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28
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Chan RJ, Beaubien-Souligny W, Silver SA, Bagshaw SM, Wald R, Brown PA, Hiremath S, Kong JW, Clark EG. The Use of I.V. Albumin During Kidney Replacement Therapy: A Survey of Nephrologists and Intensivists. Kidney Int Rep 2021; 7:614-617. [PMID: 35257074 PMCID: PMC8897299 DOI: 10.1016/j.ekir.2021.11.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 10/25/2021] [Accepted: 11/29/2021] [Indexed: 12/02/2022] Open
Affiliation(s)
- Ryan J. Chan
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - William Beaubien-Souligny
- Division of Nephrology, Department of Medicine, Centre Hospitalier de l’Université de Montréal, Montréal, Quebec, Canada
| | - Samuel A. Silver
- Division of Nephrology, Department of Medicine, Queen’s University, Kingston, Ontario, Canada
| | - Sean M. Bagshaw
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Ron Wald
- Division of Nephrology, St. Michael’s Hospital (Unity Health), University of Toronto, Toronto, Ontario, Canada
| | - Pierre-Antoine Brown
- Division of Nephrology, Department of Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
- Kidney Research Centre and Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Swapnil Hiremath
- Division of Nephrology, Department of Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
- Kidney Research Centre and Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Jennifer W.Y. Kong
- Kidney Research Centre and Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Edward G. Clark
- Division of Nephrology, Department of Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
- Kidney Research Centre and Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Correspondence: Edward G. Clark, Division of Nephrology, Department of Medicine, The Ottawa Hospital—Riverside Campus, 1967 Riverside Drive, Ottawa, Ontario K1H 7W9, Canada.
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29
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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: 8] [Impact Index Per Article: 2.7] [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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30
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Tsujimoto Y, Miki S, Shimada H, Tsujimoto H, Yasuda H, Kataoka Y, Fujii T. Non-pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal replacement therapy. Cochrane Database Syst Rev 2021; 9:CD013330. [PMID: 34519356 PMCID: PMC8438600 DOI: 10.1002/14651858.cd013330.pub2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Acute kidney injury (AKI) is a common complication amongst people who are critically ill, and it is associated with an increased risk of death. For people with severe AKI, continuous kidney replacement therapy (CKRT), which is delivered over 24 hours, is needed when they become haemodynamically unstable. When CKRT is interrupted due to clotting of the extracorporeal circuit, the delivered dose is decreased and thus leading to undertreatment. OBJECTIVES This review assessed the efficacy of non-pharmacological measures to maintain circuit patency in CKRT. SEARCH METHODS We searched the Cochrane Kidney and Transplant Register of Studies up to 25 January 2021 which includes records identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal, and ClinicalTrials.gov. SELECTION CRITERIA We included all randomised controlled trials (RCTs) (parallel-group and cross-over studies), cluster RCTs and quasi-RCTs that examined non-pharmacological interventions to prevent clotting of extracorporeal circuits during CKRT. DATA COLLECTION AND ANALYSIS: Three pairs of review authors independently extracted information including participants, interventions/comparators, outcomes, study methods, and risk of bias. The primary outcomes were circuit lifespan and death due to any cause at day 28. We used a random-effects model to perform quantitative synthesis (meta-analysis). We assessed risk of bias in included studies using the Cochrane Collaboration's tool for assessing risk of bias. Summary estimates of effect were obtained using a random-effects model, and results were expressed as risk ratios (RR) and their 95% confidence intervals (CI) for dichotomous outcomes, and mean difference (MD) and 95% CI for continuous outcomes. Confidence in the evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. MAIN RESULTS A total of 20 studies involving 1143 randomised participants were included in the review. The methodological quality of the included studies was low, mainly due to the unclear randomisation process and blinding of the intervention. We found evidence on the following 11 comparisons: (i) continuous venovenous haemodialysis (CVVHD) versus continuous venovenous haemofiltration (CVVH) or continuous venovenous haemodiafiltration (CVVHDF); (ii) CVVHDF versus CVVH; (iii) higher blood flow (≥ 250 mL/minute) versus standard blood flow (< 250 mL/minute); (iv) AN69 membrane (AN69ST) versus other membranes; (v) pre-dilution versus post-dilution; (vi) a longer catheter (> 20 cm) placing the tip targeting the right atrium versus a shorter catheter (≤ 20 cm) placing the tip in the superior vena cava; (vii) surface-modified double-lumen catheter versus standard double-lumen catheter with identical geometry and flow design; (viii) single-site infusion anticoagulation versus double-site infusion anticoagulation; (ix) flat plate filter versus hollow fibre filter of the same membrane type; (x) a filter with a larger membrane surface area versus a smaller one; and (xi) a filter with more and shorter hollow fibre versus a standard filter of the same membrane type. Circuit lifespan was reported in 9 comparisons. Low certainty evidence indicated that CVVHDF (versus CVVH: MD 10.15 hours, 95% CI 5.15 to 15.15; 1 study, 62 circuits), pre-dilution haemofiltration (versus post-dilution haemofiltration: MD 9.34 hours, 95% CI -2.60 to 21.29; 2 studies, 47 circuits; I² = 13%), placing the tip of a longer catheter targeting the right atrium (versus placing a shorter catheter targeting the tip in the superior vena cava: MD 6.50 hours, 95% CI 1.48 to 11.52; 1 study, 420 circuits), and surface-modified double-lumen catheter (versus standard double-lumen catheter: MD 16.00 hours, 95% CI 13.49 to 18.51; 1 study, 262 circuits) may prolong circuit lifespan. However, higher blood flow may not increase circuit lifespan (versus standard blood flow: MD 0.64, 95% CI -3.37 to 4.64; 2 studies, 499 circuits; I² = 70%). More and shorter hollow fibre filters (versus standard filters: MD -5.87 hours, 95% CI -10.18 to -1.56; 1 study, 6 circuits) may reduce circuit lifespan. Death from any cause was reported in four comparisons We are uncertain whether CVVHDF versus CVVH, CVVHD versus CVVH or CVVHDF, longer versus a shorter catheter, or surface-modified double-lumen catheters versus standard double-lumen catheters reduced death due to any cause, in very low certainty evidence. Recovery of kidney function was reported in three comparisons. We are uncertain whether CVVHDF versus CVVH, CVVHDF versus CVVH, or surface-modified double-lumen catheters versus standard double-lumen catheters increased recovery of kidney function. Vascular access complications were reported in two comparisons. Low certainty evidence indicated using a longer catheter (versus a shorter catheter: RR 0.40, 95% CI 0.22 to 0.74) may reduce vascular access complications, however the use of surface-modified double lumen catheters versus standard double-lumen catheters may make little or no difference to vascular access complications. AUTHORS' CONCLUSIONS The use of CVVHDF as compared with CVVH, pre-dilution haemofiltration, a longer catheter, and surface-modified double-lumen catheter may be useful in prolonging the circuit lifespan, while higher blood flow and more and shorter hollow fibre filter may reduce circuit life. The Overall, the certainty of evidence was assessed to be low to very low due to the small sample size of the included studies. Data from future rigorous and transparent research are much needed in order to fully understand the effects of non-pharmacological interventions in preventing circuit coagulation amongst people with AKI receiving CKRT.
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Affiliation(s)
- Yasushi Tsujimoto
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
- Department of Nephrology and Dialysis, Kyoritsu Hospital, Kawanishi, Japan
- Systematic Review Workshop Peer Support Group (SRWS-PSG), Osaka, Japan
| | - Sho Miki
- Department of Nephrology, Sumitomo Hospital, Osaka, Japan
| | - Hiroki Shimada
- Department of Nephrology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Hiraku Tsujimoto
- Hospital Care Research Unit, Hyogo Prefectural Amagasaki General Medical Center, Hyogo, Japan
| | - Hideto Yasuda
- Department of Emergency and Critical Care Medicine, Jichi Medical University Saitama Medical Center, Saitama-shi, Japan
| | - Yuki Kataoka
- Systematic Review Workshop Peer Support Group (SRWS-PSG), Osaka, Japan
- Department of Internal Medicine, Kyoto Min-Iren Asukai Hospital, Kyoto, Japan
- Department of Healthcare Epidemiology, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
- Section of Clinical Epidemiology, Department of Community Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoko Fujii
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine / School of Public Health, Kyoto, Japan
- Intensive Care Unit, Jikei University Hospital, Tokyo, Japan
- ANZIC-RC, Monash University School of Public Health and Preventive Medicine, Melbourne, Australia
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Kang MW, Kim S, Kim YC, Kim DK, Oh KH, Joo KW, Kim YS, Han SS. Machine learning model to predict hypotension after starting continuous renal replacement therapy. Sci Rep 2021; 11:17169. [PMID: 34433892 PMCID: PMC8387375 DOI: 10.1038/s41598-021-96727-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 08/13/2021] [Indexed: 12/20/2022] Open
Abstract
Hypotension after starting continuous renal replacement therapy (CRRT) is associated with worse outcomes compared with normotension, but it is difficult to predict because several factors have interactive and complex effects on the risk. The present study applied machine learning algorithms to develop models to predict hypotension after initiating CRRT. Among 2349 adult patients who started CRRT due to acute kidney injury, 70% and 30% were randomly assigned into the training and testing sets, respectively. Hypotension was defined as a reduction in mean arterial pressure (MAP) ≥ 20 mmHg from the initial value within 6 h. The area under the receiver operating characteristic curves (AUROCs) in machine learning models, such as support vector machine (SVM), deep neural network (DNN), light gradient boosting machine (LGBM), and extreme gradient boosting machine (XGB) were compared with those in disease-severity scores such as the Sequential Organ Failure Assessment and Acute Physiology and Chronic Health Evaluation II. The XGB model showed the highest AUROC (0.828 [0.796-0.861]), and the DNN and LGBM models followed with AUROCs of 0.822 (0.789-0.856) and 0.813 (0.780-0.847), respectively; all machine learning AUROC values were higher than those obtained from disease-severity scores (AUROCs < 0.6). Although other definitions of hypotension were used such as a reduction of MAP ≥ 30 mmHg or a reduction occurring within 1 h, the AUROCs of machine learning models were higher than those of disease-severity scores. Machine learning models successfully predict hypotension after starting CRRT and can serve as the basis of systems to predict hypotension before starting CRRT.
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Affiliation(s)
- Min Woo Kang
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Seonmi Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Yong Chul Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Dong Ki Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Kwon Wook Joo
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Yon Su Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Seung Seok Han
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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32
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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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33
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Chávez-Íñiguez JS, Maggiani-Aguilera P, Pérez-Flores C, Claure-Del Granado R, De la Torre-Quiroga AE, Martínez-Gallardo González A, Navarro-Blackaller G, Medina-González R, Raimann JG, Yanowsky-Escatell FG, García-García G. Nephrologist Interventions to Avoid Kidney Replacement Therapy in Acute Kidney Injury. Kidney Blood Press Res 2021; 46:629-638. [PMID: 34315155 DOI: 10.1159/000517615] [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: 03/26/2021] [Accepted: 06/04/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Based on the pathophysiology of acute kidney injury (AKI), it is plausible that certain early interventions by the nephrologist could influence its trajectory. In this study, we investigated the impact of 5 early nephrology interventions on starting kidney replacement therapy (KRT), AKI progression, and death. METHODS In a prospective cohort at the Hospital Civil of Guadalajara, we followed up for 10 days AKI patients in whom a nephrology consultation was requested. We analyzed 5 early interventions of the nephrology team (fluid adjustment, nephrotoxic withdrawal, antibiotic dose adjustment, nutritional adjustment, and removal of hyperchloremic solutions) after the propensity score and multivariate analysis for the risk of starting KRT (primary objective), AKI progression to stage 3, and death (secondary objectives). RESULTS From 2017 to 2020, we analyzed 288 AKI patients. The mean age was 55.3 years, 60.7% were male, AKI KDIGO stage 3 was present in 50.5% of them, sepsis was the main etiology 50.3%, and 72 (25%) patients started KRT. The overall survival was 84.4%. Fluid adjustment was the only intervention associated with a decreased risk for starting KRT (odds ratio [OR]: 0.58, 95% confidence interval [CI]: 0.48-0.70, and p ≤ 0.001) and AKI progression to stage 3 (OR: 0.59, 95% CI: 0.49-0.71, and p ≤ 0.001). Receiving vasopressors and KRT were associated with mortality. None of the interventions studied was associated with reducing the risk of death. CONCLUSIONS In this prospective cohort study of AKI patients, we found for the first time that early nephrologist intervention and fluid prescription adjustment were associated with lower risk of starting KRT and progression to AKI stage 3.
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Affiliation(s)
- Jonathan S Chávez-Íñiguez
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico.,University of Guadalajara Health Sciences Center, Guadalajara, Mexico
| | - Pablo Maggiani-Aguilera
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico.,University of Guadalajara Health Sciences Center, Guadalajara, Mexico
| | - Christian Pérez-Flores
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico.,University of Guadalajara Health Sciences Center, Guadalajara, Mexico
| | - Rolando Claure-Del Granado
- Division of Nephrology, Hospital Obrero #2 - C.N.S., Cochabamba, Bolivia.,Universidad Mayor de San Simon, School of Medicine, Cochabamba, Bolivia
| | - Andrés E De la Torre-Quiroga
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico.,University of Guadalajara Health Sciences Center, Guadalajara, Mexico
| | - Alejandro Martínez-Gallardo González
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico.,University of Guadalajara Health Sciences Center, Guadalajara, Mexico
| | - Guillermo Navarro-Blackaller
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico.,University of Guadalajara Health Sciences Center, Guadalajara, Mexico
| | - Ramón Medina-González
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico
| | | | | | - Guillermo García-García
- Nephrology Service, Civil Hospital of Guadalajara Fray Antonio Alcalde, Guadalajara, Mexico.,University of Guadalajara Health Sciences Center, Guadalajara, Mexico
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34
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Murugan R, Kerti SJ, Chang CCH, Gallagher M, Neto AS, Clermont G, Ronco C, Palevsky PM, Kellum JA, Bellomo R. Association between Net Ultrafiltration Rate and Renal Recovery among Critically Ill Adults with Acute Kidney Injury Receiving Continuous Renal Replacement Therapy: An Observational Cohort Study. Blood Purif 2021; 51:397-409. [PMID: 34289471 PMCID: PMC8776893 DOI: 10.1159/000517281] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 05/18/2021] [Indexed: 01/03/2023]
Abstract
INTRODUCTION Higher net ultrafiltration (UFNET) rates are associated with mortality among critically ill patients with acute kidney injury (AKI) and treated with continuous renal replacement therapy (CRRT). OBJECTIVE The aim of the study was to discover whether UFNET rates are associated with renal recovery and independence from renal replacement therapy (RRT). METHODS Retrospective cohort study using data from the Randomized Evaluation of Normal versus Augmented Level of Renal Replacement Therapy trial that enrolled 1,433 critically ill patients with AKI and treated with CRRT between December 2005 and November 2008 across 35 intensive care units in Australia and New Zealand. We examined the association between UFNET rate and time to independence from RRT by day 90 using competing risk regression after accounting for mortality. The UFNET rate was defined as the volume of fluid removed per hour adjusted for patient body weight. RESULTS AND CONCLUSIONS Median age was 67.3 (interquartile range [IQR], 57-76.3) years, 64.4% were male, median Acute Physiology and Chronic Health Evaluation-III score was 100 (IQR, 84-118), and 634 (44.2%) died by day 90. Kidney recovery occurred in 755 patients (52.7%). Using tertiles of UFNET rates, 3 groups were defined: high, >1.75; middle, 1.01-1.75; and low, <1.01 mL/kg/h. Proportion of patients alive and independent of RRT among the groups were 47.8 versus 57.2 versus 53.0%; p = 0.01. Using competing risk regression, higher UFNET rate tertile compared with middle (cause-specific hazard ratio [csHR], 0.79, 95% CI, 0.66-0.95; subdistribution hazard ratio [sHR], 0.80, 95% CI, 0.67-0.97) and lower (csHR, 0.69, 95% CI, 0.56-0.85; sHR, 0.78, 95% CI 0.64-0.95) tertiles were associated with a longer time to independence from RRT. Every 1.0 mL/kg/h increase in rate was associated with a lower probability of kidney recovery (csHR, 0.81, 95% CI, 0.74-0.89; and sHR, 0.87, 95% CI, 0.80-0.95). Using the joint model, longitudinal increases in UFNET rates were also associated with a lower renal recovery (β = -0.29, p < 0.001). UFNET rates >1.75 mL/kg/h compared with rates 1.01-1.75 and <1.01 mL/kg/h were associated with a longer duration of dependence on RRT. Randomized clinical trials are required to confirm this UFNET rate-outcome relationship.
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Affiliation(s)
- Raghavan Murugan
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Samantha J. Kerti
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Chung-Chou H. Chang
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Martin Gallagher
- The George Institute for Global Health and University of Sydney, Sydney, Australia
| | - Ary Serpa Neto
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Gilles Clermont
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Claudio Ronco
- Department of Medicine, University of Padova, International Renal Research Institute of Vicenza and Department of Clinical Nephrology, San Bortolo Hospital, Vicenza, Italy
| | - Paul M. Palevsky
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Renal Section, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, USA
| | - John A. Kellum
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Rinaldo Bellomo
- Department of Intensive Care Medicine, The University of Melbourne, Austin Hospital, Victoria, Australia
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35
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Kelly YP, Sharma S, Mothi SS, McCausland FR, Mendu ML, McMahon GM, Palevsky PM, Waikar SS. Hypocalcemia is associated with hypotension during CRRT: A secondary analysis of the Acute Renal Failure Trial Network Study. J Crit Care 2021; 65:261-267. [PMID: 34274834 DOI: 10.1016/j.jcrc.2021.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/22/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE We investigated the effect of potentially modifiable continuous renal replacement therapy (CRRT)-related treatment factors on the risk of severe hypotension. MATERIALS AND METHODS We carried out a secondary statistical analysis of the Acute Renal Failure Trial Network (ATN) trial. The primary exposures of interest were CRRT treatment dose, ultrafiltration rate, blood flow rate, ionized calcium level and type of anti-coagulation used. The primary outcome was severe hypotension, defined as vasopressor-inotropic score > 18 and calculated based on treatment doses of vasopressor and inotropic agents. RESULTS Of 1124 individuals enrolled in the ATN Trial, 786 were managed with CRRT. 265/786 (33.7%) patients experienced severe hypotension during the trial. A serum ionized calcium <1.02 mmol/l was associated with a higher risk of severe hypotension compared to a serum calcium >1.02 mmol/l (hazard ratio 2.9; 95% CI 1.5-5.7). There was no significant difference in the risk of hypotension associated with other CRRT treatment factors. CONCLUSIONS Of the CRRT treatment factors studied, hypocalcemia with a serum ionized calcium <1.02 mmol/l was associated with a significantly increased risk of treatment-associated hypotension. Further studies will be required to assess whether treatment targets for serum calcium improve the risk of hypotension during CRRT.
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Affiliation(s)
- Yvelynne P Kelly
- Division of Renal Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States of America; Department of Critical Care Medicine, St. James's Hospital, James's Street, Dublin 8, Ireland.
| | - Shilpa Sharma
- Division of Renal Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States of America
| | - Suraj S Mothi
- Division of Renal Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States of America
| | - Finnian R McCausland
- Division of Renal Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States of America
| | - Mallika L Mendu
- Division of Renal Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States of America
| | - Gearoid M McMahon
- Division of Renal Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States of America
| | - Paul M Palevsky
- Renal-Electrolyte Division, University of Pittsburgh School of Medicine and Kidney Medicine Section, VA Pittsburgh Healthcare System, Pittsburgh, PA, United States of America
| | - Sushrut S Waikar
- Section of Nephrology, Boston University School of Medicine and Boston Medical Center, 650 Albany Street, EBRC 526, Boston, MA 02118, United States of America
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36
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Intra-dialytic hypotension following the transition from continuous to intermittent renal replacement therapy. Ann Intensive Care 2021; 11:96. [PMID: 34146164 PMCID: PMC8214642 DOI: 10.1186/s13613-021-00885-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 06/07/2021] [Indexed: 12/24/2022] Open
Abstract
Background Transition from continuous renal replacement therapy (CRRT) to intermittent renal replacement therapy (IRRT) can be associated with intra-dialytic hypotension (IDH) although data to inform the definition of IDH, its incidence and clinical implications, are lacking. We aimed to describe the incidence and factors associated with IDH during the first IRRT session following transition from CRRT and its association with hospital mortality. This was a retrospective single-center cohort study in patients with acute kidney injury for whom at least one CRRT-to-IRRT transition occurred while in intensive care. We assessed associations between multiple candidate definitions of IDH and hospital mortality. We then evaluated the factors associated with IDH. Results We evaluated 231 CRRT-to-IRRT transitions in 213 critically ill patients with AKI. Hospital mortality was 43.7% (n = 93). We defined IDH during the first IRRT session as 1) discontinuation of IRRT for hemodynamic instability; 2) any initiation or increase in vasopressor/inotropic agents or 3) a nadir systolic blood pressure of < 90 mmHg. IDH during the first IRRT session occurred in 50.2% of CRRT-to-IRRT transitions and was independently associated with hospital mortality (adjusted odds ratio [OR]: 2.71; CI 1.51–4.84, p < 0.001). Clinical variables at the time of CRRT discontinuation associated with IDH included vasopressor use, higher cumulative fluid balance, and lower urine output. Conclusions IDH events during CRRT-to-IRRT transition occurred in nearly half of patients and were independently associated with hospital mortality. We identified several characteristics that anticipate the development of IDH following the initiation of IRRT. Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00885-7.
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37
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Chazot G, Bitker L, Mezidi M, Chebib N, Chabert P, Chauvelot L, Folliet L, David G, Provoost J, Yonis H, Richard JC. Prevalence and risk factors of hemodynamic instability associated with preload-dependence during continuous renal replacement therapy in a prospective observational cohort of critically ill patients. Ann Intensive Care 2021; 11:95. [PMID: 34125314 PMCID: PMC8200783 DOI: 10.1186/s13613-021-00883-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 06/03/2021] [Indexed: 11/21/2022] Open
Abstract
Background Hemodynamic instability is a frequent complication of continuous renal replacement therapy (CRRT). Postural tests (i.e., passive leg raising in the supine position or Trendelenburg maneuver in the prone position) combined with measurement of cardiac output are highly reliable to identify preload-dependence and may provide new insights into the mechanisms involved in hemodynamic instability related to CRRT (HIRRT). We aimed to assess the prevalence and risk factors of HIRRT associated with preload-dependence in ICU patients. We conducted a single-center prospective observational cohort study in ICU patients with acute kidney injury KDIGO 3, started on CRRT in the last 24 h, and monitored with a PiCCO® device. The primary endpoint was the rate of HIRRT episodes associated with preload-dependence during the first 7 days after inclusion. HIRRT was defined as the occurrence of a mean arterial pressure below 65 mmHg requiring therapeutic intervention. Preload-dependence was assessed by postural tests every 4 h, and during each HIRRT episode. Data are expressed in median [1st quartile–3rd quartile], unless stated otherwise. Results 42 patients (62% male, age 69 [59–77] year, SAPS-2 65 [49–76]) were included 6 [1–16] h after CRRT initiation and studied continuously for 121 [60–147] h. A median of 5 [3–8] HIRRT episodes occurred per patient, for a pooled total of 243 episodes. 131 episodes (54% [CI95% 48–60%]) were associated with preload-dependence, 108 (44%, [CI95% 38–51%]) without preload-dependence, and 4 were unclassified. Multivariate analysis (using variables collected prior to HIRRT) identified the following variables as risk factors for the occurrence of HIRRT associated with preload-dependence: preload-dependence before HIRRT [odds ratio (OR) = 3.82, p < 0.001], delay since last HIRRT episode > 8 h (OR = 0.56, p < 0.05), lactate (OR = 1.21 per 1-mmol L−1 increase, p < 0.05), cardiac index (OR = 0.47 per 1-L min−1 m−2 increase, p < 0.001) and SOFA at ICU admission (OR = 0.91 per 1-point increase, p < 0.001). None of the CRRT settings was identified as risk factor for HIRRT. Conclusions In this single-center study, HIRRT associated with preload-dependence was slightly more frequent than HIRRT without preload-dependence in ICU patients undergoing CRRT. Testing for preload-dependence could help avoiding unnecessary decrease of fluid removal in preload-independent HIRRT during CRRT. Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00883-9.
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Affiliation(s)
- Guillaume Chazot
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Laurent Bitker
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France.,Université de Lyon, Université LYON I, Lyon, France.,CREATIS INSERM 1044 CNRS 5220, Villeurbanne, France
| | - Mehdi Mezidi
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France.,Université de Lyon, Université LYON I, Lyon, France
| | - Nader Chebib
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France.,Université de Lyon, Université LYON I, Lyon, France
| | - Paul Chabert
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Louis Chauvelot
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Laure Folliet
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Guillaume David
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Judith Provoost
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Hodane Yonis
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Jean-Christophe Richard
- Service de Médecine Intensive - Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France. .,Université de Lyon, Université LYON I, Lyon, France. .,CREATIS INSERM 1044 CNRS 5220, Villeurbanne, France.
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Lubis B, Amelia P, Akil M. The Association between Daily Fluid Balance and Mean Perfusion Pressure as a Critical Sign in the Intensive Care Unit of Adam Malik Central Hospital, Medan. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND: The patient mortality rate in intensive care unit (ICU) is still high. However, we still lack measures to reduce this high mortality rate. Fluid balance is known as a marker for mortality in ICU. If the balance of fluid becomes more positive, the mortality rate consequently becomes higher. Positive fluid balance elevates central venous pressure (CVP), while this elevation increases the risk of renal failure and mortality. Mean perfusion pressure (MPP) is the difference between mean arterial pressure and CVP.
AIM: We propose that the MPP value can be used as an alternative indicator to monitor excessive fluid balance since its measurement is faster and more accurate than the manual 24 h record of fluid balance.
PATIENTS AND METHODS: It is expected that we can prevent excessive fluid accumulation and the subsequent mortality risk by monitoring MPP in the ICU. To investigate the association between MPP and daily fluid balance in the ICU, a prospective study was conducted from March 2016 to August 2018 in the ICU of Adam Malik Hospital, Medan. During the study period, 76 patients were admitted. Sixty-point 5% were male, with the mean age of 48.3 ± 16.5 years old.
RESULTS: The overall mortality of 76 patients was 10.5%, and there was a significant negative correlation found between MPP and fluid balance (r = −0.204; p = 0.048), where a lower MPP value was associated with a more positive fluid balance.
CONCLUSIONS: We conclude that there is a negative correlation between MPP and fluid balance, where a more positive fluid balance is associated with a lower MPP value. The positive fluid balance had been previously associated with increased mortality risk in the ICU.
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Fluid management in patients with acute kidney injury - A post-hoc analysis of the FINNAKI study. J Crit Care 2021; 64:205-210. [PMID: 34020407 DOI: 10.1016/j.jcrc.2021.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 04/28/2021] [Accepted: 05/01/2021] [Indexed: 11/22/2022]
Abstract
PURPOSE Whether positive fluid balance among patients with acute kidney injury (AKI) stems from decreased urine output, overzealous fluid administration, or both is poorly characterized. MATERIALS AND METHODS This was a post hoc analysis of the prospective multicenter observational Finnish Acute Kidney Injury study including 824 AKI and 1162 non-AKI critically ill patients. RESULTS We matched 616 AKI (diagnosed during the three first intensive care unit (ICU) days) and non-AKI patients using propensity score. During the three first ICU days, AKI patients received median [IQR] of 11.4 L [8.0-15.2]L fluids and non-AKI patients 10.2 L [7.5-13.7]L, p < 0.001 while the fluid output among AKI patients was 4.7 L [3.0-7.2]L and among non-AKI patients 5.8 L [4.1-8.0]L, p < 0.001. In AKI patients, the median [IQR] cumulative fluid balance was 2.5 L [-0.2-6.0]L compared to 0.9 L [-1.4-3.6]L among non-AKI patients, p < 0.001. Among the 824 AKI patients, smaller volumes of fluid input with a multivariable OR of 0.90 (0.88-0.93) and better fluid output (multivariable OR 1.12 (1.07-1.18)) associated with enhanced change of resolution of AKI. CONCLUSIONS AKI patients received more fluids albeit having lower fluid output compared to matched critically ill non-AKI patients. Smaller volumes of fluid input and higher fluid output were associated with better AKI recovery.
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Monitoring skin blood flow to rapidly identify alterations in tissue perfusion during fluid removal using continuous veno-venous hemofiltration in patients with circulatory shock. Ann Intensive Care 2021; 11:59. [PMID: 33855645 PMCID: PMC8046875 DOI: 10.1186/s13613-021-00847-z] [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: 01/16/2021] [Accepted: 03/29/2021] [Indexed: 12/13/2022] Open
Abstract
Background Continuous veno-venous hemofiltration (CVVH) can be used to reduce fluid overload and tissue edema, but excessive fluid removal may impair tissue perfusion. Skin blood flow (SBF) alters rapidly in shock, so its measurement may be useful to help monitor tissue perfusion. Methods In a prospective, observational study in a 35-bed department of intensive care, all patients with shock who required fluid removal with CVVH were considered for inclusion. SBF was measured on the index finger using skin laser Doppler (Periflux 5000, Perimed, Järfälla, Sweden) for 3 min at baseline (before starting fluid removal, T0), and 1, 3 and 6 h after starting fluid removal. The same fluid removal rate was maintained throughout the study period. Patients were grouped according to absence (Group A) or presence (Group B) of altered tissue perfusion, defined as a 10% increase in blood lactate from T0 to T6 with the T6 lactate ≥ 1.5 mmol/l. Receiver operating characteristic curves were constructed and areas under the curve (AUROC) calculated to identify variables predictive of altered tissue perfusion. Data are reported as medians [25th–75th percentiles]. Results We studied 42 patients (31 septic shock, 11 cardiogenic shock); median SOFA score at inclusion was 9 [8–12]. At T0, there were no significant differences in hemodynamic variables, norepinephrine dose, lactate concentration, ScvO2 or ultrafiltration rate between groups A and B. Cardiac index and MAP did not change over time, but SBF decreased in both groups (p < 0.05) throughout the study period. The baseline SBF was lower (58[35–118] vs 119[57–178] perfusion units [PU], p = 0.03) and the decrease in SBF from T0 to T1 (ΔSBF%) higher (53[39–63] vs 21[12–24]%, p = 0.01) in group B than in group A. Baseline SBF and ΔSBF% predicted altered tissue perfusion with AUROCs of 0.83 and 0.96, respectively, with cut-offs for SBF of ≤ 57 PU (sensitivity 78%, specificity 87%) and ∆SBF% of ≥ 45% (sensitivity 92%, specificity 99%). Conclusion Baseline SBF and its early reduction after initiation of fluid removal using CVVH can predict worsened tissue perfusion, reflected by an increase in blood lactate levels. Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00847-z.
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Murugan R, Bellomo R, Palevsky PM, Kellum JA. Ultrafiltration in critically ill patients treated with kidney replacement therapy. Nat Rev Nephrol 2021; 17:262-276. [PMID: 33177700 PMCID: PMC9826716 DOI: 10.1038/s41581-020-00358-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2020] [Indexed: 01/30/2023]
Abstract
Management of fluid overload is one of the most challenging problems in the care of critically ill patients with oliguric acute kidney injury. Various clinical practice guidelines support fluid removal using ultrafiltration during kidney replacement therapy. However, ultrafiltration is associated with considerable risks. Emerging evidence from observational studies suggests that both slow and fast rates of net fluid removal (that is, net ultrafiltration (UFNET)) during continuous kidney replacement therapy are associated with increased mortality compared with moderate UFNET rates. In addition, fast UFNET rates are associated with an increased risk of cardiac arrhythmias. Experimental studies in patients with kidney failure who were treated with intermittent haemodialysis suggest that fast UFNET rates are also associated with ischaemic injury to the heart, brain, kidney and gut. The UFNET rate should be prescribed based on patient body weight in millilitres per kilogramme per hour with close monitoring of patient haemodynamics and fluid balance. Dialysate cooling and sodium modelling may prevent haemodynamic instability and facilitate large volumes of fluid removal in patients with kidney failure who are treated with intermittent haemodialysis, but the effects of this strategy on organ injury are less well studied in critically ill patients treated with continuous kidney replacement therapy. Randomized trials are required to examine whether moderate UFNET rates are associated with a reduced risk of haemodynamic instability, organ injury and improved outcomes in critically ill patients.
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Affiliation(s)
- Raghavan Murugan
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
| | - Rinaldo Bellomo
- Department of Intensive Care Medicine, The University of Melbourne, Austin Hospital, Melbourne, Victoria, Australia
| | - Paul M Palevsky
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - John A Kellum
- The Center for Critical Care Nephrology, CRISMA, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Abstract
Emerging evidence from observational studies suggests that both slower and faster net ultrafiltration rates during kidney replacement therapy are associated with increased mortality in critically ill patients with acute kidney injury and fluid overload. Faster rates are associated with ischemic organ injury. The net ultrafiltration rate should be prescribed based on patient body weight in milliliters per kilogram per hour, with close monitoring of patient hemodynamics and fluid balance. Randomized trials are required to examine whether moderate net ultrafiltration rates compared with slower and faster rates are associated with reduced risk of hemodynamic instability, organ injury, and improved outcomes.
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Affiliation(s)
- Vikram Balakumar
- Department of Critical Care Medicine, Mercy Hospitals, Springfield, MO, USA; Department of Critical Care Medicine, Center for Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. https://twitter.com/vikrambalakumar
| | - Raghavan Murugan
- Department of Critical Care Medicine, Center for Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Critical Care Medicine, The Clinical Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) Center, University of Pittsburgh School of Medicine, University of Pittsburgh, 3347 Forbes Avenue, Suite 220, Room 206, Pittsburgh, PA 15261, USA.
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Villa G, Husain-Syed F, Saitta T, Degl'Innocenti D, Barbani F, Resta M, Castellani G, Romagnoli S. Hemodynamic Instability during Acute Kidney Injury and Acute Renal Replacement Therapy: Pathophysiology and Clinical Implications. Blood Purif 2021; 50:729-739. [PMID: 33756481 DOI: 10.1159/000513942] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/16/2020] [Indexed: 11/19/2022]
Abstract
Hemodynamic instability associated with acute renal replacement therapy (aRRT, HIRRT) and/or with acute kidney injury (AKI) is frequently observed in the intensive care unit; it affects patients' renal recovery, and negatively impacts short- and long-term mortality. A thorough understanding of mechanisms underlying HIRRT and AKI-related hemodynamic instability may allow the physician in adopting adequate strategies to prevent their occurrence and reduce their negative consequences. The aim of this review is to summarize the main alterations occurring in patients with AKI and/or requiring aRRT of those homeostatic mechanisms which regulate hemodynamics and oxygen delivery. In particular, a pathophysiological approach has been used to describe the maladaptive interactions between cardiac output and systemic vascular resistance occurring in these patients and leading to hemodynamic instability. Finally, the potential positive effects of aRRT on these pathophysiological mechanisms and on restoring hemodynamic stability have been described.
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Affiliation(s)
- Gianluca Villa
- Department of Health Science, Section of Anesthesiology and Intensive Care, University of Florence, Florence, Italy,
| | - Faeq Husain-Syed
- Division of Nephrology, Department of Internal Medicine II, Pulmonology and Critical Care Medicine, University Hospital Giessen and Marburg, Giessen, Germany
| | - Thomas Saitta
- Department of Health Science, Section of Anesthesiology and Intensive Care, University of Florence, Florence, Italy
| | - Dario Degl'Innocenti
- Department of Health Science, Section of Anesthesiology and Intensive Care, University of Florence, Florence, Italy
| | - Francesco Barbani
- Department of Anesthesia and Intensive Care, Section of Oncological Anesthesia and Intensive Care, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Marco Resta
- U.O. Anestesia e Rianimazione Polispecialistica - IRCCS Policlinico San Donato, Milan, Italy
| | - Gianluca Castellani
- Department of Anesthesia and Intensive Care, Humanitas Clinical and Research Center - IRCCS, Milan, Italy
| | - Stefano Romagnoli
- Department of Health Science, Section of Anesthesiology and Intensive Care, University of Florence, Florence, Italy
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Alabbas A, Kirpalani A, Morgan C, Mammen C, Licht C, Phan V, Wade A, Harvey E, Zappitelli M, Clark EG, Hiremath S, Soroka SD, Wald R, Weir MA, Chanchlani R, Lemaire M. Canadian Association of Paediatric Nephrologists COVID-19 Rapid Response: Guidelines for Management of Acute Kidney Injury in Children. Can J Kidney Health Dis 2021; 8:2054358121990135. [PMID: 33614056 PMCID: PMC7868478 DOI: 10.1177/2054358121990135] [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: 12/28/2020] [Accepted: 01/04/2021] [Indexed: 01/08/2023] Open
Abstract
PURPOSE This article provides guidance on managing acute kidney injury (AKI) and kidney replacement therapy (KRT) in pediatrics during the COVID-19 pandemic in the Canadian context. It is adapted from recently published rapid guidelines on the management of AKI and KRT in adults, from the Canadian Society of Nephrology (CSN). The goal is to provide the best possible care for pediatric patients with kidney disease during the pandemic and ensure the health care team's safety. INFORMATION SOURCES The Canadian Association of Paediatric Nephrologists (CAPN) COVID-19 Rapid Response team derived these rapid guidelines from the CSN consensus recommendations for adult patients with AKI. We have also consulted specific documents from other national and international agencies focused on pediatric kidney health. We identified additional information by reviewing the published academic literature relevant to pediatric AKI and KRT, including recent journal articles and preprints related to COVID-19 in children. Finally, our group also sought expert opinions from pediatric nephrologists across Canada. METHODS The leadership of the CAPN, which is affiliated with the CSN, solicited a team of clinicians and researchers with expertise in pediatric AKI and acute KRT. The goal was to adapt the guidelines recently adopted for Canadian adult patients for pediatric-specific settings. These included specific COVID-19-related themes relevant to AKI and KRT in a Canadian setting, as determined by a group of kidney disease experts and leaders. An expert group of clinicians in pediatric AKI and acute KRT reviewed the revised pediatric guidelines. KEY FINDINGS (1) Current Canadian data do not suggest an imminent threat of an increase in acute KRT needs in children because of COVID-19; however, close coordination between nephrology programs and critical care programs is crucial as the pandemic continues to evolve. (2) Pediatric centers should prepare to reallocate resources to adult centers as needed based on broader health care needs during the COVID-19 pandemic. (3) Specific suggestions pertinent to the optimal management of AKI and KRT in COVID-19 patients are provided. These suggestions include but are not limited to aspects of fluid management, KRT vascular access, and KRT modality choice. (4) Considerations to ensure adequate provision of KRT if resources become scarce during the COVID-19 pandemic. LIMITATIONS We did not conduct a formal systematic review or meta-analysis. We did not evaluate our specific suggestions in the clinical environment. The local context, including how the provision of care for AKI and acute KRT is organized, may impede the implementation of many suggestions. As knowledge is advancing rapidly in the area of COVID-19, suggestions may become outdated quickly. Finally, most of the literature for AKI and KRT in COVID-19 comes from adult data, and there are few pediatric-specific studies. IMPLICATIONS Given that most acute KRT related to COVID-19 is likely to be required in the pediatric intensive care unit initial setting, close collaboration and planning between critical care and pediatric nephrology programs are needed. Our group will update these suggestions with a supplement if necessary as newer evidence becomes available that may change or add to the recommendations provided.
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Affiliation(s)
- Abdullah Alabbas
- Department of Paediatrics, Division of Nephrology, University of Alberta, Edmonton, Canada
| | - Amrit Kirpalani
- Department of Paediatrics, Division of Nephrology, Western University, London, ON, Canada
| | - Catherine Morgan
- Department of Paediatrics, Division of Nephrology, University of Alberta, Edmonton, Canada
| | - Cherry Mammen
- Department of Paediatrics, Division of Nephrology, The University of British Columbia, Vancouver, Canada
| | - Christoph Licht
- Department of Paediatrics, Division of Nephrology, University of Toronto, ON, Canada
| | - Veronique Phan
- Department of Paediatrics, Division of Nephrology, Université de Montréal, Québec, Canada
| | - Andrew Wade
- Department of Paediatrics, Division of Nephrology, University of Calgary, AB, Canada
| | - Elizabeth Harvey
- Department of Paediatrics, Division of Nephrology, University of Toronto, ON, Canada
| | - Michael Zappitelli
- Department of Paediatrics, Division of Nephrology, University of Toronto, ON, Canada
| | - Edward G. Clark
- Division of Nephrology, Department of Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, ON, Canada
| | - Swapnil Hiremath
- Division of Nephrology, Department of Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, ON, Canada
| | - Steven D. Soroka
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Ron Wald
- Division of Nephrology, St. Michael’s Hospital and Department of Medicine, University of Toronto, ON, Canada
| | - Matthew A. Weir
- Division of Nephrology, Department of Medicine, Western University, London, ON, Canada
| | - Rahul Chanchlani
- Division of Pediatric Nephrology, Department of Pediatrics, McMaster Children’s Hospital, McMaster University, Hamilton, ON, Canada
| | - Mathieu Lemaire
- Department of Paediatrics, Division of Nephrology, University of Toronto, ON, Canada
- Division of Nephrology, The Hospital for Sick Children, Toronto, ON, Canada
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Li X, Liu C, Mao Z, Li Q, Zhou F. Timing of renal replacement therapy initiation for acute kidney injury in critically ill patients: a systematic review of randomized clinical trials with meta-analysis and trial sequential analysis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2021; 25:15. [PMID: 33407756 PMCID: PMC7789484 DOI: 10.1186/s13054-020-03451-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 12/22/2020] [Indexed: 12/18/2022]
Abstract
Background Acute kidney injury (AKI) is a common serious complication in critically ill patients. AKI occurs in up to 50% patients in intensive care unit (ICU), with poor clinical prognosis. Renal replacement therapy (RRT) has been widely used in critically ill patients with AKI. However, in patients without urgent indications such as acute pulmonary edema, severe acidosis, and severe hyperkalemia, the optimal timing of RRT initiation is still under debate. We conducted this systematic review of randomized clinical trials (RCTs) with meta-analysis and trial sequential analysis (TSA) to compare the effects of early RRT initiation versus delayed RRT initiation. Methods We searched databases (PubMed, EMBASE and Cochrane Library) from inception through to July 20, 2020, to identify eligible RCTs. The primary outcome was 28-day mortality. Two authors extracted the data independently. When the I2 values < 25%, we used fixed-effect mode. Otherwise, the random effects model was used as appropriate. TSA was performed to control the risk of random errors and assess whether the results in our meta-analysis were conclusive. Results Eleven studies involving 5086 patients were identified. Two studies included patients with sepsis, one study included patients with shock after cardiac surgery, and eight others included mixed populations. The criteria for the initiation of RRT, the definition of AKI, and RRT modalities existed great variations among the studies. The median time of RRT initiation across studies ranged from 2 to 7.6 h in the early RRT group and 21 to 57 h in the delayed RRT group. The pooled results showed that early initiation of RRT could not decrease 28-day all-cause mortality compared with delayed RRT (RR 1.01; 95% CI 0.94–1.09; P = 0.77; I2 = 0%). TSA result showed that the required information size was 2949. The cumulative Z curve crossed the futility boundary and reached the required information size. In addition, early initiation of RRT could lead to unnecessary RRT exposure in some patients and was associated with a higher incidence of hypotension (RR 1.42; 95% CI 1.23–1.63; P < 0.00001; I2 = 8%) and RRT-associated infection events (RR 1.34; 95% CI 1.01–1.78; P = 0.04; I2 = 0%). Conclusions This meta-analysis suggested that early initiation of RRT was not associated with survival benefit in critically ill patients with AKI. In addition, early initiation of RRT could lead to unnecessary RRT exposure in some patients, resulting in a waste of health resources and a higher incidence of RRT-associated adverse events. Maybe, only critically ill patients with a clear and hard indication, such as severe acidosis, pulmonary edema, and hyperkalemia, could benefit from early initiation of RRT.
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Affiliation(s)
- Xiaoming Li
- Department of Critical Care Medicine, the First Medical Centre, Chinese People's Liberation Army General Hospital, 28 Fu-Xing Road, Beijing, 100853, People's Republic of China.,Medical School of Chinese PLA, Beijing, People's Republic of China
| | - Chao Liu
- Medical School of Chinese PLA, Beijing, People's Republic of China
| | - Zhi Mao
- Department of Critical Care Medicine, the First Medical Centre, Chinese People's Liberation Army General Hospital, 28 Fu-Xing Road, Beijing, 100853, People's Republic of China
| | - Qinglin Li
- Department of Critical Care Medicine, the First Medical Centre, Chinese People's Liberation Army General Hospital, 28 Fu-Xing Road, Beijing, 100853, People's Republic of China
| | - Feihu Zhou
- Department of Critical Care Medicine, the First Medical Centre, Chinese People's Liberation Army General Hospital, 28 Fu-Xing Road, Beijing, 100853, People's Republic of China.
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Serpa Neto A, Naorungroj T, Murugan R, Kellum JA, Gallagher M, Bellomo R. Heterogeneity of Effect of Net Ultrafiltration Rate among Critically Ill Adults Receiving Continuous Renal Replacement Therapy. Blood Purif 2020; 50:336-346. [PMID: 33027799 DOI: 10.1159/000510556] [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] [Received: 05/25/2020] [Accepted: 07/28/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION In continuous renal replacement therapy (CRRT)-treated patients, a net ultrafiltration (NUF) rate >1.75 mL/kg/h has been associated with increased mortality. However, there may be heterogeneity of effect of NUF rate on mortality, according to patient characteristics. METHODS To investigate the presence and impact of heterogeneity of effect, we performed a secondary analysis of the "Randomized Evaluation of Normal versus Augmented Level of Renal Replacement Therapy" (RENAL) trial. Exposure was NUF rate (weight-adjusted fluid volume removed per hour) stratified into tertiles (<1.01 mL/kg/h; 1.01-1.75 mL/kg/h; or >1.75 mL/kg/h). Primary outcome was 90-day mortality. Patients were clustered according to baseline characteristics. Heterogeneity of effect was assessed according to clusters and baseline edema and related to the additional impact of baseline cardiovascular Sequential Organ Failure Assessment (SOFA) score. We excluded patients with missing values for baseline weight and/or treatment duration. RESULTS We identified 2 clusters. The largest (cluster 1; n = 941) included more severely ill patients, with more sepsis, more edema, and more vasopressor therapy (all p < 0.001). Compared to the middle tertile, the probability of harm was greater with the high tertile of NUF rate in patients in cluster 1 and in patients with baseline edema (probability of harm, cluster 1: 99.9%; edema: 99.1%). Moreover, higher baseline cardiovascular SOFA score also increased mortality risk with both high and low compared to middle NUF rates in cluster 1 patients and in patients with edema. CONCLUSIONS In CRRT patients, both high and low NUF rates may be harmful, especially in those with edema, sepsis, and greater illness severity. Cardiovascular SOFA scores modulate this association. Additional studies are needed to test these hypotheses, and targeted trials of NUF rates based on risk stratification appear justified. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT00221013.
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Affiliation(s)
- Ary Serpa Neto
- Department of Intensive Care, Austin Hospital, Melbourne, Victoria, Australia.,Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil.,Department of Intensive Care, Amsterdam University Medical Centers, Location "AMC", Amsterdam, The Netherlands
| | - Thummaporn Naorungroj
- Department of Intensive Care, Austin Hospital, Melbourne, Victoria, Australia, .,Department of Intensive Care, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand,
| | - Raghavan Murugan
- Department of Critical Care Medicine, The Center for Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Department of Critical Care Medicine, The Clinical Research, Investigation, and Systems Modelling of Acute Illness (CRISMA) Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Department of Critical Care Medicine, University of Pittsburgh School of Medicine Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John A Kellum
- Department of Critical Care Medicine, The Center for Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Department of Critical Care Medicine, The Clinical Research, Investigation, and Systems Modelling of Acute Illness (CRISMA) Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Department of Critical Care Medicine, University of Pittsburgh School of Medicine Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Martin Gallagher
- Department of Nephrology, The George Institute for Global Health and University of Sydney, Sidney, New South Wales, Australia
| | - Rinaldo Bellomo
- Department of Intensive Care, Austin Hospital, Melbourne, Victoria, Australia.,Centre for Integrated Critical Care, The University of Melbourne, Melbourne, Victoria, Australia.,Data Analytics Research and Evaluation (DARE) Centre, The University of Melbourne, Melbourne, Victoria, Australia
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Clark EG, Hiremath S, Soroka SD, Wald R, Weir MA. CSN COVID-19 Rapid Review Program: Management of Acute Kidney Injury. Can J Kidney Health Dis 2020; 7:2054358120941679. [PMID: 32728473 PMCID: PMC7364799 DOI: 10.1177/2054358120941679] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 01/08/2023] Open
Abstract
PURPOSE Severe acute kidney injury (AKI) is a potential complication of COVID-19-associated critical illness. This has implications for the management of COVID-19-associated AKI and the resulting increased need for kidney replacement therapy (KRT) in the intensive care unit (ICU) and elsewhere in the hospital. The Canadian Society of Nephrology COVID-19 Rapid Review Team has sought to collate and synthesize currently available resources to inform ethically justifiable decisions. The goal is the provision of the best possible care for the largest number of patients with kidney disease while considering how best to ensure the safety of the health care team. INFORMATION SOURCES Local, provincial, national, and international guidance and planning documents related to the COVID-19 pandemic; guidance documents available from nephrology and critical care-related professional organizations; recent journal articles and preprints related to the COVID-19 pandemic; expert opinion from nephrologists from across Canada. METHODS A working group of kidney specialist physicians was established with representation from across Canada. Kidney physician specialists met via teleconference and exchanged e-mails to refine and agree on the proposed suggestions in this document. KEY FINDINGS (1) Nephrology programs should work with ICU programs to plan for the possibility that up to 30% or more of critically ill patients with COVID-19 admitted to ICU will require kidney replacement therapy (KRT). (2) Specific suggestions pertinent to the optimal management of AKI and KRT in patients with COVID-19. These suggestions include, but are not limited to, aspects of fluid management, KRT vascular access, and KRT modality choice. (3) We describe considerations related to ensuring adequate provision of KRT, should resources become scarce during the COVID-19 pandemic. LIMITATIONS A systematic review or meta-analysis was not conducted. Our suggestions have not been specifically evaluated in the clinical environment. The local context, including how the provision of acute KRT is organized, may impede the implementation of many suggestions. Knowledge is advancing rapidly in the area of COVID-19 and suggestions may become outdated quickly. IMPLICATIONS Given that most acute KRT related to COVID-19 is likely to be required initially in the ICU setting, close collaboration and planning between critical care and nephrology programs is required. Suggestions may be updated as newer evidence becomes available.
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Affiliation(s)
- Edward G. Clark
- Division of Nephrology, Department of Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, ON, Canada
| | - Swapnil Hiremath
- Division of Nephrology, Department of Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, ON, Canada
| | - Steven D. Soroka
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Ron Wald
- Division of Nephrology, St. Michael’s Hospital and Department of Medicine, University of Toronto, ON, Canada
| | - Matthew A. Weir
- Division of Nephrology, Department of Medicine, Western University, London, ON, Canada
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Hall A, Crichton S, Dixon A, Skorniakov I, Kellum JA, Ostermann M. Fluid removal associates with better outcomes in critically ill patients receiving continuous renal replacement therapy: a cohort study. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2020; 24:279. [PMID: 32487189 PMCID: PMC7268712 DOI: 10.1186/s13054-020-02986-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 05/12/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Fluid overload is associated with morbidity and mortality in patients receiving renal replacement therapy (RRT). We aimed to explore whether fluid overload at initiation of RRT was independently associated with mortality and whether changes in cumulative fluid balance during RRT were associated with outcome. METHODS We retrospectively analysed the data of patients who were admitted to the multidisciplinary adult intensive care unit (ICU) in a tertiary care centre in the UK between 2012 and 2015 and received continuous RRT (CRRT) for acute kidney injury for at least 24 h. We collected baseline demographics, body mass index (BMI), comorbidities, severity of illness, laboratory parameters at CRRT initiation, daily cumulative fluid balance (FB), daily prescribed FB target, fluid bolus and diuretic administration and outcomes. The day of the lowest cumulative FB during CRRT was identified as nadir FB. RESULTS Eight hundred twenty patients were analysed (median age 65 years; 49% female). At CRRT initiation, the median cumulative FB was + 1772 ml; 89 patients (10.9%) had a cumulative FB > 10% body weight (BW). Hospital survivors had a significantly lower cumulative FB at CRRT initiation compared to patients who died (1495 versus 2184 ml; p < 0.001). In the 7 days after CRRT initiation, hospital survivors had a significant decline in cumulative FB (mean decrease 473 ml per day, p < 0.001) whilst there was no significant change in cumulative FB in non-survivors (mean decrease 112 ml per day, p = 0.188). Higher severity of illness at CRRT initiation, shorter duration of CRRT, the number of days without a prescribed FB target and need for higher doses of noradrenaline were independent risk factors for not reaching a FB nadir during CRRT. Multivariable analysis showed that older age, lower BMI, higher severity of illness, need for higher doses of noradrenaline and smaller reductions in cumulative FB during CRRT were independent risk factors for ICU and hospital mortality. Cumulative FB at CRRT initiation was not independently associated with mortality. CONCLUSION In adult patients receiving CRRT, a decrease in cumulative FB was independently associated with lower mortality. Fluid overload and need for vasopressor support at CRRT initiation were not independently associated with mortality after correction for severity of illness.
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Affiliation(s)
- Anna Hall
- Department of Critical Care, Guy's & St Thomas' Hospital, London, UK
| | - Siobhan Crichton
- Medical Research Council Clinical Trials Unit, University College London, London, UK
| | - Alison Dixon
- Department of Critical Care, Guy's & St Thomas' Hospital, London, UK
| | - Ilia Skorniakov
- Department of Nephrology and Dialysis, Sverdlovsk Regional Clinical Hospital 1, Yekaterinburg, Russia
| | - John A Kellum
- Department of Critical Care Medicine, Center for Critical Care Nephrology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Marlies Ostermann
- Department of Critical Care, King's College London, Guy's & St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK.
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Gorga SM, Sahay RD, Askenazi DJ, Bridges BC, Cooper DS, Paden ML, Zappitelli M, Gist KM, Gien J, Basu RK, Jetton JG, Murphy HJ, King E, Fleming GM, Selewski DT. Fluid overload and fluid removal in pediatric patients on extracorporeal membrane oxygenation requiring continuous renal replacement therapy: a multicenter retrospective cohort study. Pediatr Nephrol 2020; 35:871-882. [PMID: 31953749 PMCID: PMC7517652 DOI: 10.1007/s00467-019-04468-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 12/09/2019] [Accepted: 12/20/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The aim of this study was to characterize continuous renal replacement therapy (CRRT) utilization on extracorporeal membrane oxygenation (ECMO) and to determine the association of both fluid overload (FO) at CRRT initiation and fluid removal during CRRT with mortality in a large multicenter cohort. METHODS Retrospective chart review of all children < 18 years of age concurrently treated with ECMO and CRRT from January 1, 2007, to December 31, 2011, at six tertiary care children's hospital. Children treated with hemodialysis or peritoneal dialysis were excluded from the FO analysis. MEASUREMENTS AND MAIN RESULTS A total of 756 of the 1009 children supported with ECMO during the study period had complete FO data. Of these, 357 (47.2%) received either CRRT or were treated with an in-line filter and thus entered into the final analysis. Survival to ECMO decannulation was 66.4% and survival to hospital discharge was 44.3%. CRRT initiation occurred at median of 1 day (IQR 0, 2) after ECMO initiation. Median FO at CRRT initiation was 20.1% (IQR 5, 40) and was significantly lower in ECMO survivors vs. non-survivors (15.3% vs. 30.5% p = 0.005) and in hospital survivors vs. non-survivors (13.5% vs. 25.9%, p = 0.004). Median FO at CRRT discontinuation was significantly lower in ECMO survivors (23% vs. 37.6% p = 0.002) and hospital survivors vs. non-survivors (22.6% vs. 36.1%, p = 0.002). In ECMO survivors, after adjusting for pH at CRRT initiation, non-renal complications, ECMO mode, support type, center, patient age and AKI, FO at CRRT initiation (p = 0.01), and FO at CRRT discontinuation (p = 0.0002) were independently associated with duration of ECMO. In a similar multivariable analysis, FO at CRRT initiation (adjusted adds ratio [aOR] 1.09, 95% CI 1.00-1.18, p = 0.045) and at CRRT discontinuation (aOR 1.11, 95% CI 1.03-1.19, p = 0.01) were independently associated with hospital mortality. CONCLUSIONS In a multicenter pediatric ECMO cohort, this study demonstrates that severe FO was very common at CRRT initiation. We found an independent association between the degree of FO at CRRT initiation with adverse outcomes including mortality and increased duration of ECMO support. The results suggest that intervening prior to the development of significant FO may be a clinical therapeutic target and warrants further evaluation.
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Affiliation(s)
- Stephen M Gorga
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Rashmi D Sahay
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - David J Askenazi
- Department of Pediatrics, University of Alabama Birmingham, Birmingham, Alabama, USA
| | - Brian C Bridges
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - David S Cooper
- Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Matthew L Paden
- Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, USA
| | - Michael Zappitelli
- Department of Pediatrics, Toronto Hospital for Sick Children, Toronto, Canada and McGill University Health Centre, Montreal, Canada
| | - Katja M Gist
- Department of Pediatrics, Children's Hospital of Colorado University of Colorado Anschutz Medical Campus Aurora, Aurora, CO, USA
| | - Jason Gien
- Department of Pediatrics, Children's Hospital of Colorado University of Colorado Anschutz Medical Campus Aurora, Aurora, CO, USA
| | - Rajit K Basu
- Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, USA
| | - Jennifer G Jetton
- Division of Nephrology, Dialysis and Transplantation, Stead Family Department of Pediatrics, University of Iowa Children's Hospital, Iowa City, IA, USA
| | - Heidi J Murphy
- Department of Pediatric, Medical University of South Carolina, Charleston, SC, USA
| | - Eileen King
- Department of Pediatrics, University of Alabama Birmingham, Birmingham, Alabama, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Geoffrey M Fleming
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - David T Selewski
- Department of Pediatric, Medical University of South Carolina, Charleston, SC, USA.
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50
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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: 35] [Impact Index Per Article: 8.8] [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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