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Titeca-Beauport D, Diouf M, Daubin D, Vong LV, Belliard G, Bruel C, Zerbib Y, Vinsonneau C, Klouche K, Maizel J. The combination of kidney function variables with cell cycle arrest biomarkers identifies distinct subphenotypes of sepsis-associated acute kidney injury: a post-hoc analysis (the PHENAKI study). Ren Fail 2024; 46:2325640. [PMID: 38445412 PMCID: PMC10919311 DOI: 10.1080/0886022x.2024.2325640] [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: 09/25/2023] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND The severity and course of sepsis-associated acute kidney injury (SA-AKI) are correlated with the mortality rate. Early detection of SA-AKI subphenotypes might facilitate the rapid provision of individualized care. PATIENTS AND METHODS In this post-hoc analysis of a multicenter prospective study, we combined conventional kidney function variables with serial measurements of urine (tissue inhibitor of metalloproteinase-2 [TIMP-2])* (insulin-like growth factor-binding protein [IGFBP7]) at 0, 6, 12, and 24 h) and then using an unsupervised hierarchical clustering of principal components (HCPC) approach to identify different phenotypes of SA-AKI. We then compared the subphenotypes with regard to a composite outcome of in-hospital death or the initiation of renal replacement therapy (RRT). RESULTS We included 184 patients presenting SA-AKI within 6 h of the initiation of catecholamines. Three distinct subphenotypes were identified: subphenotype A (99 patients) was characterized by a normal urine output (UO), a low SCr and a low [TIMP-2]*[IGFBP7] level; subphenotype B (74 patients) was characterized by existing chronic kidney disease (CKD), a higher SCr, a low UO, and an intermediate [TIMP-2]*[IGFBP7] level; and subphenotype C was characterized by very low UO, a very high [TIMP-2]*[IGFBP7] level, and an intermediate SCr level. With subphenotype A as the reference, the adjusted hazard ratio (aHR) [95%CI] for the composite outcome was 3.77 [1.92-7.42] (p < 0.001) for subphenotype B and 4.80 [1.67-13.82] (p = 0.004) for subphenotype C. CONCLUSIONS Combining conventional kidney function variables with urine measurements of [TIMP-2]*[IGFBP7] might help to identify distinct SA-AKI subphenotypes with different short-term courses and survival rates.
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Affiliation(s)
- Dimitri Titeca-Beauport
- Medical Intensive Care Unit and EA7517, Boreal Study Group, Amiens University Hospital, Amiens, France
| | - Momar Diouf
- Department of Statistics, Amiens University Hospital, Amiens, France
| | - Delphine Daubin
- Department of Intensive Care Medicine, Lapeyronie University Hospital, PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Ly Van Vong
- Intensive Care Unit, Groupe Hospitalier Sud Ile de France, Melun, France
| | - Guillaume Belliard
- Medical-Surgical Intensive Care Unit, Centre Hospitalier de Bretagne Sud, Lorient, France
| | - Cédric Bruel
- Medical and Surgical Intensive Care Unit, Groupe Hospitalier Paris Saint Joseph, Paris, France
| | - Yoann Zerbib
- Medical Intensive Care Unit and EA7517, Boreal Study Group, Amiens University Hospital, Amiens, France
| | | | - Kada Klouche
- Department of Intensive Care Medicine, Lapeyronie University Hospital, PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Julien Maizel
- Medical Intensive Care Unit and EA7517, Boreal Study Group, Amiens University Hospital, Amiens, France
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Takahashi K, Uenishi N, Sanui M, Uchino S, Yonezawa N, Takei T, Nishioka N, Kobayashi H, Otaka S, Yamamoto K, Yasuda H, Kosaka S, Tokunaga H, Fujiwara N, Kondo T, Ishida T, Komatsu T, Endo K, Moriyama T, Oyasu T, Hayakawa M, Hoshino A, Matsuyama T, Miyamoto Y, Yanagisawa A, Wakabayashi T, Ueda T, Komuro T, Sugimoto T, Sasabuchi Y. High versus low chloride load in adult hyperglycemic emergencies with acute kidney injury: a multicenter retrospective cohort study. Intern Emerg Med 2024; 19:959-970. [PMID: 38488997 DOI: 10.1007/s11739-024-03556-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 02/04/2024] [Indexed: 03/17/2024]
Abstract
Hyperglycemic emergencies frequently lead to acute kidney injury (AKI) and require treatment with large amount of intravenous fluids. However, the effects of chloride loading on this population have not yet been investigated. We conducted a multicenter, retrospective, cohort study in 21 acute-care hospitals in Japan. The study included hospitalized adult patients with diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic syndrome (HHS) who had AKI upon arrival. The patients were classified into high and low chloride groups based on the amount of chloride administered within the first 48 h of their arrival. The primary outcome was recovery from AKI; secondary outcome was major adverse kidney events within 30 days (MAKE30), including mortality and prolonged renal failure. A total of 390 patients with AKI, including 268 (69%) with DKA and 122 (31%) with HHS, were included in the study. Using the criteria of Kidney Disease Improving Global Outcomes, the severity of AKI in the patients was Stage 1 (n = 159, 41%), Stage 2 (n = 121, 31%), and Stage 3 (n = 110, 28%). The analysis showed no significant difference between the two groups in recovery from AKI (adjusted hazard ratio, 0.96; 95% CI 0.72-1.28; P = 0.78) and in MAKE30 (adjusted odds ratio, 0.91; 95% CI 0.45-1.76; P = 0.80). Chloride loading with fluid administration had no significant impact on recovery from AKI in patients with hyperglycemic emergencies.Trial Registration This study was registered in the UMIN clinical trial registration system (UMIN000025393, registered December 23, 2016).
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Affiliation(s)
- Kyosuke Takahashi
- Department of Anesthesiology and Critical Care Medicine, Jichi Medical University Saitama Medical Center, 1-847 Amanumacho, Omiya-ku, Saitama City, Saitama Prefecture, 330-0834, Japan.
- Department of Anesthesiology and Critical Care Medicine, Kawasaki Municipal Hospital, Kawasaki, Kanagawa, Japan.
| | - Norimichi Uenishi
- Department of Emergency and General Internal Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Masamitsu Sanui
- Department of Anesthesiology and Critical Care Medicine, Jichi Medical University Saitama Medical Center, 1-847 Amanumacho, Omiya-ku, Saitama City, Saitama Prefecture, 330-0834, Japan
| | - Shigehiko Uchino
- Department of Anesthesiology and Critical Care Medicine, Jichi Medical University Saitama Medical Center, 1-847 Amanumacho, Omiya-ku, Saitama City, Saitama Prefecture, 330-0834, Japan
| | - Naoki Yonezawa
- Department of Emergency and Critical Care Medicine, Yokohama City Minato Red Cross Hospital, Yokohama, Kanagawa, Japan
| | - Tetsuhiro Takei
- Department of Emergency and Critical Care Medicine, Yokohama City Minato Red Cross Hospital, Yokohama, Kanagawa, Japan
| | - Norihiro Nishioka
- Department of Preventive Services, Kyoto University Graduate School of Medicine, Sakyo, Kyoto, Japan
- Division of Nephrology, Department of Internal Medicine, Okinawa Prefectural Chubu Hospital, Uruma, Okinawa, Japan
| | - Hirotada Kobayashi
- Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
- Department of Intensive Care Medicine, Kameda Medical Center, Kamogawa, Chiba, Japan
| | - Shunichi Otaka
- Department of Emergency Medicine, International University of Health and Welfare Narita Hospital, Narita, Chiba, Japan
- Department of Emergency Medicine, Kumamoto Red Cross Hospital, Higashi, Kumamoto, Japan
| | - Kotaro Yamamoto
- Department of Emergency Medicine, Musashino Red Cross Hospital, Musashino, Tokyo, Japan
| | - Hideto Yasuda
- Department of Emergency Medicine, Musashino Red Cross Hospital, Musashino, Tokyo, Japan
- Department of Emergency Medicine, Jichi Medical University Saitama Medical Center, Omiya, Saitama, Japan
| | - Shintaro Kosaka
- Department of Medicine, Nerima Hikarigaoka Hospital, Nerima, Tokyo, Japan
| | - Hidehiko Tokunaga
- Department of Medicine, Nerima Hikarigaoka Hospital, Nerima, Tokyo, Japan
| | - Naoki Fujiwara
- Department of Medicine, Nerima Hikarigaoka Hospital, Nerima, Tokyo, Japan
- Department of Medicine, Taito Municipal Taito Hospital, Taito, Tokyo, Japan
| | - Takashiro Kondo
- Department of Emergency and Critical Care Medicine, National Hospital Organization Nagoya Medical Center, Nagoya, Aichi, Japan
| | - Tomoki Ishida
- Nanohana Clinic, Ikuno, Osaka, Japan
- Department of Emergency Medicine, Yodogawa Christian Hospital, Higashi Yodogawa, Osaka, Japan
| | - Takayuki Komatsu
- Department of Sports Medicine, Faculty of Medicine, Juntendo University, Bunkyo, Tokyo, Japan
- Department of Emergency and Critical Care Medicine, Juntendo University Nerima Hospital, Nerima, Tokyo, Japan
| | - Koji Endo
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Sakyo, Kyoto, Japan
- Department of General Internal Medicine, Tottori Prefectural Central Hospital, Tottori, Tottori, Japan
| | - Taiki Moriyama
- Department of Emergency Medicine, Hyogo Emergency Medical Center, Kobe, Hyogo, Japan
- Department of Emergency Medicine, Saiseikai Senri Hospital, Suita, Osaka, Japan
| | - Takayoshi Oyasu
- Department of Emergency Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Mineji Hayakawa
- Department of Emergency Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Atsumi Hoshino
- Department of Critical Care Medicine, Kurashiki Central Hospital, Kurashiki, Okayama, Japan
- Department of Emergency and Critical Care Medicine, Toyooka Public Hospital, Toyooka, Hyogo, Japan
| | - Tasuku Matsuyama
- Department of Emergency Medicine, Kyoto Prefectural University of Medicine, Kamigyo, Kyoto, Japan
| | - Yuki Miyamoto
- Department of Emergency Medicine, Kyoto Prefectural University of Medicine, Kamigyo, Kyoto, Japan
| | - Akihiro Yanagisawa
- Department of Anesthesia, Gyoda General Hospital, Gyoda, Saitama, Japan
- Department of Anesthesiology and Intensive Care, Gunma University Hospital, Maebashi, Gunma, Japan
| | - Tadamasa Wakabayashi
- Department of Medicine, Suwa Central Hospital, Chino, Nagano, Japan
- Department of Cardiology, Suwa Central Hospital, Chino, Nagano, Japan
| | - Takeshi Ueda
- Department of Emergency and General Internal Medicine, Rakuwakai Marutamachi Hospital, Nakagyo, Kyoto, Japan
| | - Tetsuya Komuro
- Department of Medicine, TMG Muneoka Central Hospital, Shiki, Saitama, Japan
- Department of Critical Care, Shonan Kamakura General Hospital, Kamakura, Kanagawa, Japan
| | - Toshiro Sugimoto
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
- Department of Medicine, National Hospital Organization Higashiohmi General Medical Center, Higashiohmi, Shiga, Japan
| | - Yusuke Sasabuchi
- Department of Real-World Evidence, Graduate School of Medicine, The University of Tokyo, Bunkyo City, Tokyo, Japan
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3
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Iba T, Helms J, Maier CL, Levi M, Scarlatescu E, Levy JH. The role of thromboinflammation in acute kidney injury among patients with septic coagulopathy. J Thromb Haemost 2024; 22:1530-1540. [PMID: 38382739 DOI: 10.1016/j.jtha.2024.02.006] [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: 12/01/2023] [Revised: 01/22/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024]
Abstract
Inflammation and coagulation are critical self-defense mechanisms for mitigating infection that can nonetheless induce tissue injury and organ dysfunction. In severe cases, like sepsis, a dysregulated thromboinflammatory response may result in multiorgan dysfunction. Sepsis-associated acute kidney injury (AKI) is a significant contributor to patient morbidity and mortality. The connection between AKI and thromboinflammation is largely due to unique aspects of the renal vasculature. Specifically, the interaction between blood cells with the endothelial, glomerular, and peritubular capillary systems during thromboinflammation reduces oxygen supply to tubular epithelial cells. Previous studies have focused on tubular epithelial cell damage due to hypoxia, oxidative stress, and nephrotoxins. Although these factors are pivotal in acute tubular injury or necrosis, recent studies have demonstrated that AKI in sepsis encompasses a mixture of tubular and glomerular damage subtypes. In cases of sepsis-induced coagulopathy, thromboinflammation within the glomerulus and peritubular capillaries is an important pathogenic mechanism for AKI. Unfortunately, and despite the use of renal replacement therapy, the development of AKI in sepsis continues to be associated with high morbidity, mortality, and clinical challenges requiring alternative approaches. This review introduces the important role of thromboinflammation in AKI pathogenesis and details innovative vascular-targeting therapeutic strategies.
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Affiliation(s)
- Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Julie Helms
- French National Institute of Health and Medical Research, United Medical Resources 1260, Regenerative Nanomedicine, Federation de Medicine Translationnelle de Strasbourg, Strasbourg University Hospital, Medical Intensive Care Unit - NHC, Strasbourg University, Strasbourg, France
| | - Cheryl L Maier
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Marcel Levi
- Department of Vascular Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands; Department of Medicine, University College London Hospitals National Health Service Foundation Trust, Cardio-metabolic Programme-National Institute for Health and Care Research University College London Hospitals/University College London Biomedical Research Centre, London, United Kingdom
| | - Ecaterina Scarlatescu
- University of Medicine and Pharmacy "Carol Davila," Bucharest, Romania; Department of Anaesthesia and Intensive Care, Fundeni Clinical Institute, Bucharest, Romania
| | - Jerrold H Levy
- Department of Anesthesiology, Critical Care, and Surgery, Duke University School of Medicine, Durham, North Carolina, USA
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4
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Cheng Y, Nie S, Zhao X, Xu X, Xu H, Liu B, Weng J, Chunbo C, Liu H, Yang Q, Li H, Kong Y, Li G, Wan Q, Zha Y, Hu Y, Shi Y, Zhou Y, Su G, Tang Y, Gong M, Hou FF, Ge S, Xu G. Incidence, risk factors and outcome of postoperative acute kidney injury in China. Nephrol Dial Transplant 2024; 39:967-977. [PMID: 38262746 DOI: 10.1093/ndt/gfad260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Postoperative acute kidney injury (AKI) is a common condition after surgery, however, the available data about nationwide epidemiology of postoperative AKI in China from large and high-quality studies are limited. This study aimed to determine the incidence, risk factors and outcomes of postoperative AKI among patients undergoing surgery in China. METHODS This was a large, multicentre, retrospective study performed in 16 tertiary medical centres in China. Adult patients (≥18 years of age) who underwent surgical procedures from 1 January 2013 to 31 December 2019 were included. Postoperative AKI was defined by the Kidney Disease: Improving Global Outcomes creatinine criteria. The associations of AKI and in-hospital outcomes were investigated using logistic regression models adjusted for potential confounders. RESULTS Among 520 707 patients included in our study, 25 830 (5.0%) patients developed postoperative AKI. The incidence of postoperative AKI varied by surgery type, which was highest in cardiac (34.6%), urologic (8.7%) and general (4.2%) surgeries. A total of 89.2% of postoperative AKI cases were detected in the first 2 postoperative days. However, only 584 (2.3%) patients with postoperative AKI were diagnosed with AKI on discharge. Risk factors for postoperative AKI included older age, male sex, lower baseline kidney function, pre-surgery hospital stay ≤3 days or >7 days, hypertension, diabetes mellitus and use of proton pump inhibitors or diuretics. The risk of in-hospital death increased with the stage of AKI. In addition, patients with postoperative AKI had longer lengths of hospital stay (12 versus 19 days) and were more likely to require intensive care unit care (13.1% versus 45.0%) and renal replacement therapy (0.4% versus 7.7%). CONCLUSIONS Postoperative AKI was common across surgery type in China, particularly for patients undergoing cardiac surgery. Implementation and evaluation of an alarm system is important for the battle against postoperative AKI.
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Affiliation(s)
- Yichun Cheng
- Department of Nephrology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology
| | - Sheng Nie
- Division of Nephrology, Nanfang Hospital, Southern Medical University; National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research
| | - Xingyang Zhao
- Department of Nephrology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology
| | - Xin Xu
- Division of Nephrology, Nanfang Hospital, Southern Medical University; National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research
| | - Hong Xu
- Children's Hospital of Fudan University
| | - Bicheng Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine
| | - Jianping Weng
- Department of Endocrinology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China
| | - Chen Chunbo
- Department of Critical Care Medicine, Maoming People's Hospital, Maoming
| | - Huafeng Liu
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University
| | - Qiongqiong Yang
- Department of Nephrology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University
| | - Hua Li
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine
| | - Yaozhong Kong
- Department of Nephrology, First People's Hospital of Foshan
| | - Guisen Li
- Renal Department and Institute of Nephrology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Sichuan Clinical Research Center for Kidney Diseases
| | - Qijun Wan
- Second People's Hospital of Shenzhen, Shenzhen University
| | - Yan Zha
- Guizhou Provincial People's Hospital, Guizhou University
| | - Ying Hu
- Second Affiliated Hospital of Zhejiang University School of Medicine
| | - Yongjun Shi
- Huizhou Municipal Central Hospital, Sun Yat-Sen University
| | - Yilun Zhou
- Department of Nephrology, Beijing Tiantan Hospital, Capital Medical University
| | - Guobin Su
- Department of Nephrology, Guangdong Provincial Hospital of Chinese Medicine, Second Affiliated Hospital, Second Clinical College, Guangzhou University of Chinese Medicine
| | - Ying Tang
- Third Affiliated Hospital of Southern Medical University
| | - Mengchun Gong
- Institute of Health Management, Southern Medical University, DHC Technologies
- DHC Technologies, Beijing, China
| | - Fan Fan Hou
- Division of Nephrology, Nanfang Hospital, Southern Medical University; National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research
| | - Shuwang Ge
- Department of Nephrology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology
| | - Gang Xu
- Department of Nephrology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology
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5
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Contrera Rolón N, Cantos J, Huespe I, Prado E, Bratti GI, Schreck C, Giannasi S, Rosa Diez G, Varela CF. Fractional excretion of sodium and potassium and urinary strong ion difference in the evaluation of persistent AKI in sepsis. Med Intensiva 2024:S2173-5727(24)00027-4. [PMID: 38403531 DOI: 10.1016/j.medine.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 01/18/2024] [Indexed: 02/27/2024]
Abstract
OBJECTIVE To evaluate the diagnostic performance of FENa (Fractional excretion of sodium), FEK (fractional excretion of potassium) and uSID (urinary strong ion difference) in predicting pAKI in sepsis and septic shock. DESIGN Retrospective cohort study. SETTING Two intensive care units in Argentina. PATIENTS Adult patients with a confirmed diagnosis of sepsis or septic shock and AKI, and had a urinary biochemistry within 24h of the AKI diagnosis. INTERVENTIONS None. MAIN VARIABLES OF INTEREST We evaluated the diagnostic accuracy of FENa, FEK and uSID through a ROC (Receiver Operating Characteristic) curve analysis. RESULTS 80 patients were included. 40 patients presented pAKI. pAKI group had higher APACHE, SOFA score, and mortality rate. In the ROC curve analysis, uSID had no diagnostic utility (AUC=0.52, p=0.69). FENa presented moderate accuracy showing an AUC of 0.71 (95% CI 0.60-0.83; p=0.001), while FEK presented low accuracy with an AUC of 0.69 (95% CI 0.57-0.80; p=0.04). The optimal Youden point for identifying pAKI was at a FENa higher than 0.51 % with a specificity of 72.5% and a sensitivity of 65.0%. In the case of FEK, a value higher than 21.9 % presented the best relation, with a specificity of 67.5% and a sensitivity of 65.0%. CONCLUSIONS urine biochemistry interpretation in septic patients must be revised. FENa and FEK are related to the severity of AKI and could be helpful complementary tools for diagnosing pAKI.
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Affiliation(s)
- Nicolás Contrera Rolón
- Critical Care Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina; Nephrology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | - Joaquín Cantos
- Critical Care Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Iván Huespe
- Critical Care Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Eduardo Prado
- Critical Care Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Griselda I Bratti
- Nephrology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Carlos Schreck
- Nephrology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Sergio Giannasi
- Critical Care Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Guillermo Rosa Diez
- Nephrology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Carlos F Varela
- Nephrology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Wang M, Wang X, Zhu B, Li W, Jiang Q, Zuo Y, Wen J, He Y, Xi X, Jiang L. The effects of timing onset and progression of AKI on the clinical outcomes in AKI patients with sepsis: a prospective multicenter cohort study. Ren Fail 2023; 45:1-10. [PMID: 37096423 PMCID: PMC10132224 DOI: 10.1080/0886022x.2022.2138433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND Limited studies are available concerning on the earlier identification of AKI with sepsis. The aim of the study was to identify the risk factors of AKI early which depended on the timing onset and progression of AKI and investigate the effects of timing onset and progression of AKI on clinical outcomes. METHODS Patients who developed sepsis during their first 48-h admission to ICU were included. The primary outcome was major adverse kidney events (MAKE) consisted of all-cause mortality, RRT-dependence, or an inability to recover to 1.5 times of the baseline creatinine value up to 30 days. We determined MAKE and in-hospital mortality by multivariable logistic regression and explored the risk factors of early persistent-AKI. C statistics were used to evaluate model fit. RESULTS 58.7% sepsis patients developed AKI. According to the timing onset and progression of AKI, Early transient-AKI, early persistent-AKI, late transient-AKI, late persistent-AKI were identified. Clinical outcomes were quite different among subgroups. Early persistent-AKI had 3.0-fold (OR 3.04, 95% CI 1.61 - 4.62) risk of MAKE and 2.6-fold (OR 2.60, 95%CI 1.72 - 3.76) risk of in-hospital mortality increased compared with the late transients-AKI. Older age, underweight, obese, faster heart rate, lower MAP, platelet, hematocrit, pH and energy intake during the first 24 h on ICU admission could well predict the early persistent-AKI in patients with sepsis. CONCLUSION Four AKI subphenotypes were identified based on the timing onset and progression of AKI. Early persistent-AKI showed higher risk of major adverse kidney events and in-hospital mortality. TRIAL REGISTRATION This study was registered in the Chinese Clinical Trials Registry (www.chictr.org/cn) under registration number ChiCTR-ECH-13003934.
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Affiliation(s)
- Meiping Wang
- Department of Critical Care Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China
| | - Xia Wang
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
| | - Bo Zhu
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
| | - Wen Li
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Qi Jiang
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
| | - Yingting Zuo
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China
| | - Jing Wen
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China
| | - Yan He
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China
| | - Xiuming Xi
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
| | - Li Jiang
- Department of Critical Care Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
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7
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Cleuren A, Molema G. Organotypic heterogeneity in microvascular endothelial cell responses in sepsis-a molecular treasure trove and pharmacological Gordian knot. Front Med (Lausanne) 2023; 10:1252021. [PMID: 38020105 PMCID: PMC10665520 DOI: 10.3389/fmed.2023.1252021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
In the last decades, it has become evident that endothelial cells (ECs) in the microvasculature play an important role in the pathophysiology of sepsis-associated multiple organ dysfunction syndrome (MODS). Studies on how ECs orchestrate leukocyte recruitment, control microvascular integrity and permeability, and regulate the haemostatic balance have provided a wealth of knowledge and potential molecular targets that could be considered for pharmacological intervention in sepsis. Yet, this information has not been translated into effective treatments. As MODS affects specific vascular beds, (organotypic) endothelial heterogeneity may be an important contributing factor to this lack of success. On the other hand, given the involvement of ECs in sepsis, this heterogeneity could also be leveraged for therapeutic gain to target specific sites of the vasculature given its full accessibility to drugs. In this review, we describe current knowledge that defines heterogeneity of organ-specific microvascular ECs at the molecular level and elaborate on studies that have reported EC responses across organ systems in sepsis patients and animal models of sepsis. We discuss hypothesis-driven, single-molecule studies that have formed the basis of our understanding of endothelial cell engagement in sepsis pathophysiology, and include recent studies employing high-throughput technologies. The latter deliver comprehensive data sets to describe molecular signatures for organotypic ECs that could lead to new hypotheses and form the foundation for rational pharmacological intervention and biomarker panel development. Particularly results from single cell RNA sequencing and spatial transcriptomics studies are eagerly awaited as they are expected to unveil the full spatiotemporal signature of EC responses to sepsis. With increasing awareness of the existence of distinct sepsis subphenotypes, and the need to develop new drug regimen and companion diagnostics, a better understanding of the molecular pathways exploited by ECs in sepsis pathophysiology will be a cornerstone to halt the detrimental processes that lead to MODS.
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Affiliation(s)
- Audrey Cleuren
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Grietje Molema
- Department Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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8
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Kasugai D, Nakashima T, Goto T. Clinical implications of urine output-based sepsis-associated acute kidney injury. Intensive Care Med 2023; 49:1263-1265. [PMID: 37604956 DOI: 10.1007/s00134-023-07190-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 08/01/2023] [Indexed: 08/23/2023]
Affiliation(s)
- Daisuke Kasugai
- Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Takaya Nakashima
- TXP Medical. Co., Ltd., Tokyo, Japan
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Sepsis-associated acute kidney injury: consensus report of the 28th Acute Disease Quality Initiative workgroup. Nat Rev Nephrol 2023; 19:401-417. [PMID: 36823168 DOI: 10.1038/s41581-023-00683-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 78.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2023] [Indexed: 02/25/2023]
Abstract
Sepsis-associated acute kidney injury (SA-AKI) is common in critically ill patients and is strongly associated with adverse outcomes, including an increased risk of chronic kidney disease, cardiovascular events and death. The pathophysiology of SA-AKI remains elusive, although microcirculatory dysfunction, cellular metabolic reprogramming and dysregulated inflammatory responses have been implicated in preclinical studies. SA-AKI is best defined as the occurrence of AKI within 7 days of sepsis onset (diagnosed according to Kidney Disease Improving Global Outcome criteria and Sepsis 3 criteria, respectively). Improving outcomes in SA-AKI is challenging, as patients can present with either clinical or subclinical AKI. Early identification of patients at risk of AKI, or at risk of progressing to severe and/or persistent AKI, is crucial to the timely initiation of adequate supportive measures, including limiting further insults to the kidney. Accordingly, the discovery of biomarkers associated with AKI that can aid in early diagnosis is an area of intensive investigation. Additionally, high-quality evidence on best-practice care of patients with AKI, sepsis and SA-AKI has continued to accrue. Although specific therapeutic options are limited, several clinical trials have evaluated the use of care bundles and extracorporeal techniques as potential therapeutic approaches. Here we provide graded recommendations for managing SA-AKI and highlight priorities for future research.
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Zhang Z, Chen L, Liu H, Sun Y, Shui P, Gao J, Wang D, Jiang H, Li Y, Chen K, Hong Y. Gene signature for the prediction of the trajectories of sepsis-induced acute kidney injury. Crit Care 2022; 26:398. [PMID: 36544199 PMCID: PMC9773539 DOI: 10.1186/s13054-022-04234-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 11/10/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a common complication in sepsis. However, the trajectories of sepsis-induced AKI and their transcriptional profiles are not well characterized. METHODS Sepsis patients admitted to centres participating in Chinese Multi-omics Advances In Sepsis (CMAISE) from November 2020 to December 2021 were enrolled, and gene expression in peripheral blood mononuclear cells was measured on Day 1. The renal function trajectory was measured by the renal component of the SOFA score (SOFArenal) on Days 1 and 3. Transcriptional profiles on Day 1 were compared between these renal function trajectories, and a support vector machine (SVM) was developed to distinguish transient from persistent AKI. RESULTS A total of 172 sepsis patients were enrolled during the study period. The renal function trajectory was classified into four types: non-AKI (SOFArenal = 0 on Days 1 and 3, n = 50), persistent AKI (SOFArenal > 0 on Days 1 and 3, n = 62), transient AKI (SOFArenal > 0 on Day 1 and SOFArenal = 0 on Day 3, n = 50) and worsening AKI (SOFArenal = 0 on Days 1 and SOFArenal > 0 on Day 3, n = 10). The persistent AKI group showed severe organ dysfunction and prolonged requirements for organ support. The worsening AKI group showed the least organ dysfunction on day 1 but had higher serum lactate and prolonged use of vasopressors than the non-AKI and transient AKI groups. There were 2091 upregulated and 1,902 downregulated genes (adjusted p < 0.05) between the persistent and transient AKI groups, with enrichment in the plasma membrane complex, receptor complex, and T-cell receptor complex. A 43-gene SVM model was developed using the genetic algorithm, which showed significantly greater performance predicting persistent AKI than the model based on clinical variables in a holdout subset (AUC: 0.948 [0.912, 0.984] vs. 0.739 [0.648, 0.830]; p < 0.01 for Delong's test). CONCLUSIONS Our study identified four subtypes of sepsis-induced AKI based on kidney injury trajectories. The landscape of host response aberrations across these subtypes was characterized. An SVM model based on a gene signature was developed to predict renal function trajectories, and showed better performance than the clinical variable-based model. Future studies are warranted to validate the gene model in distinguishing persistent from transient AKI.
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Affiliation(s)
- Zhongheng Zhang
- grid.13402.340000 0004 1759 700XDepartment of Emergency Medicine, Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 People’s Republic of China
| | - Lin Chen
- grid.13402.340000 0004 1759 700XDepartment of Critical Care Medicine, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, People’s Republic of China
| | - Huiheng Liu
- grid.413280.c0000 0004 0604 9729Emergency Department, Zhongshan Hospital of Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Yujing Sun
- grid.413280.c0000 0004 0604 9729Emergency Department, Zhongshan Hospital of Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Pengfei Shui
- grid.411634.50000 0004 0632 4559Department of Emergency, People’s Hospital of Anji, Anji County, Zhejiang People’s Republic of China
| | - Jian Gao
- Department of Critical Medicine, Pi County Peoples Hospital, Chengdu, People’s Republic of China
| | - Decong Wang
- Department of Critical Medicine, Pi County Peoples Hospital, Chengdu, People’s Republic of China
| | - Huilin Jiang
- grid.412534.5Emergency Department, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Yanling Li
- grid.412534.5Emergency Department, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Kun Chen
- grid.13402.340000 0004 1759 700XDepartment of Critical Care Medicine, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, People’s Republic of China
| | - Yucai Hong
- grid.13402.340000 0004 1759 700XDepartment of Emergency Medicine, Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016 People’s Republic of China
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Late-Onset Neurologic Dysfunction in Pediatric Sepsis-What Brains Might Learn From Kidneys and Persistent Acute Kidney Injury. Pediatr Crit Care Med 2022; 23:659-661. [PMID: 36165941 DOI: 10.1097/pcc.0000000000003007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Luo XQ, Yan P, Duan SB, Kang YX, Deng YH, Liu Q, Wu T, Wu X. Development and Validation of Machine Learning Models for Real-Time Mortality Prediction in Critically Ill Patients With Sepsis-Associated Acute Kidney Injury. Front Med (Lausanne) 2022; 9:853102. [PMID: 35783603 PMCID: PMC9240603 DOI: 10.3389/fmed.2022.853102] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/19/2022] [Indexed: 11/17/2022] Open
Abstract
Background Sepsis-associated acute kidney injury (SA-AKI) is common in critically ill patients, which is associated with significantly increased mortality. Existing mortality prediction tools showed insufficient predictive power or failed to reflect patients' dynamic clinical evolution. Therefore, the study aimed to develop and validate machine learning-based models for real-time mortality prediction in critically ill patients with SA-AKI. Methods The multi-center retrospective study included patients from two distinct databases. A total of 12,132 SA-AKI patients from the Medical Information Mart for Intensive Care IV (MIMIC-IV) were randomly allocated to the training, validation, and internal test sets. An additional 3,741 patients from the eICU Collaborative Research Database (eICU-CRD) served as an external test set. For every 12 h during the ICU stays, the state-of-the-art eXtreme Gradient Boosting (XGBoost) algorithm was used to predict the risk of in-hospital death in the following 48, 72, and 120 h and in the first 28 days after ICU admission. Area under the receiver operating characteristic curves (AUCs) were calculated to evaluate the models' performance. Results The XGBoost models, based on routine clinical variables updated every 12 h, showed better performance in mortality prediction than the SOFA score and SAPS-II. The AUCs of the XGBoost models for mortality over different time periods ranged from 0.848 to 0.804 in the internal test set and from 0.818 to 0.748 in the external test set. The shapley additive explanation method provided interpretability for the XGBoost models, which improved the understanding of the association between the predictor variables and future mortality. Conclusions The interpretable machine learning XGBoost models showed promising performance in real-time mortality prediction in critically ill patients with SA-AKI, which are useful tools for early identification of high-risk patients and timely clinical interventions.
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Luo X, Yan P, Zhang N, Wang M, Deng Y, Wu T, Wu X, Liu Q, Wang H, Wang L, Kang Y, Duan S. Early recovery status and outcomes after sepsis-associated acute kidney injury in critically ill patients. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2022; 47:535-545. [PMID: 35753723 PMCID: PMC10929915 DOI: 10.11817/j.issn.1672-7347.2022.210368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVES Acute kidney injury (AKI) is one of the common complications in critically ill septic patients, which is associated with increased risks of death, cardiovascular events, and chronic renal dysfunction. The duration of AKI and the renal function recovery status after AKI onset can affect the patient prognosis. Nevertheless, it remains controversial whether early recovery status after AKI is closely related to the prognosis in patients with sepsis-associated AKI (SA-AKI). In addition, early prediction of renal function recovery after AKI is beneficial to individualized treatment decision-making and prevention of severe complications, thus improving the prognosis. At present, there is limited clinical information on how to identify SA-AKI patients at high risk of unrecovered renal function at an early stage. The study aims to investigate the association between early recovery status after SA-AKI, identify risk factors for unrecovered renal function, and to improve patients' quality of life. METHODS We retrospectively analyzed clinical data of septic patients who were admitted to the intensive care unit (ICU) and developed AKI within the first 48 hours after ICU admission in the Second Xiangya Hospital and the Third Xiangya Hospital of Central South University from January 2015 to March 2017. Sepsis was defined based on the Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). AKI was diagnosed and staged according to the 2012 Kidney Disease: Improving Global Outcomes (KDIGO) guideline. SA-AKI patients were assigned into 3 groups including a complete recovery group, a partial recovery group, and an unrecovered group based on recovery status at Day 7 after the diagnosis of AKI. Patients' baseline characteristics were collected, including demographics, comorbidities, clinical and laboratory examination information at ICU admission, and treatment within the first 24 hours. The primary outcome of the study was the composite of death and chronic dialysis at 90 days, and secondary outcomes included length of stay in the ICU, length of stay in the hospital, and persistent renal dysfunction. Multivariate regression analysis was performed to evaluate the prognostic value of early recovery status after AKI and to determine the risk factors for unrecovered renal function after AKI. Sensitivity analysis was conducted in patients who still stayed in hospital on Day 7 after AKI diagnosis, patients without premorbid chronic kidney disease, and patients with AKI Stage 2 to 3. RESULTS A total of 553 SA-AKI patients were enrolled, of whom 251 (45.4%), 73 (13.2%), and 229 (41.4%) were categorized as the complete recovery group, the partial recovery group, and the unrecovered group, respectively. Compared with the complete or partial recovery group, the unrecovered group had a higher incidence of 90-day mortality (unrecovered vs partial recovery or complete recovery: 64.2% vs 26.0% or 22.7%; P<0.001) and 90-day composite outcome (unrecovered vs partial recovery or complete recovery: 65.1% vs 27.4% or 22.7%; P<0.001). The unrecovered group also had a shorter length of stay in the hospital and a larger proportion of progression into persistent renal dysfunction than the other 2 groups. After adjustment for potential confounders, patients in the unrecovered group were at an increased risk of 90-day mortality (HR=3.50, 95% CI 2.47 to 4.96, P<0.001) and 90-day composite outcome (OR=5.55, 95% CI 3.43 to 8.98, P<0.001) when compared with patients in the complete recovery group, but patients in the partial recovery group had no significant difference (P>0.05). Male sex, congestive heart failure, pneumonia, respiratory rate >20 beats per minute, anemia, hyperbilirubinemia, need for mechanical ventilation, and AKI Stage 3 were identified as independent risk factors for unrecovered renal function after AKI. The sensitivity analysis further supported that unrecovered renal function after AKI remained an independent predictor for 90-day mortality and composite outcome in the subgroups. CONCLUSIONS The early recovery status after AKI is closely associated with poor prognosis in critically ill patients with SA-AKI. Unrecovered renal function within the first 7 days after AKI diagnosis is an independent predictor for 90-day mortality and composite outcome. Male sex, congestive heart failure, pneumonia, tachypnea, anemia, hyperbilirubinemia, respiratory failure, and severe AKI are risk factors for unrecovered renal function after AKI. Therefore, timely assessment for the renal function in the early phase after AKI diagnosis is essential for SA-AKI patients. Furthermore, patients with unrecovered renal function after AKI need additional management in the hospital, including rigorous monitoring, avoidance of nephrotoxin, and continuous assessment for the renal function, and after discharge, including more frequent follow-up, regular outpatient consultation, and prevention of long-term adverse events.
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Affiliation(s)
- Xiaoqin Luo
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011.
| | - Ping Yan
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Ningya Zhang
- Information Center, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Mei Wang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Yinghao Deng
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Ting Wu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Xi Wu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Qian Liu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Hongshen Wang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Lin Wang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Yixin Kang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Shaobin Duan
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011.
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Reijnders TDY, Peters-Sengers H, van Vught LA, Uhel F, Bonten MJM, Cremer OL, Schultz MJ, Stuiver MM, van der Poll T. Effect of erythromycin on mortality and the host response in critically ill patients with sepsis: a target trial emulation. Crit Care 2022; 26:151. [PMID: 35610649 PMCID: PMC9128233 DOI: 10.1186/s13054-022-04016-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/01/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Immunomodulatory therapies that improve the outcome of sepsis are not available. We sought to determine whether treatment of critically ill patients with sepsis with low-dose erythromycin-a macrolide antibiotic with broad immunomodulatory effects-decreased mortality and ameliorated underlying disease pathophysiology. METHODS We conducted a target trial emulation, comparing patients with sepsis admitted to two intensive care units (ICU) in the Netherlands for at least 72 h, who were either exposed or not exposed during this period to treatment with low-dose erythromycin (up to 600 mg per day, administered as a prokinetic agent) but no other macrolides. We used two common propensity score methods (matching and inverse probability of treatment weighting) to deal with confounding by indication and subsequently used Cox regression models to estimate the treatment effect on the primary outcome of mortality rate up to day 90. Secondary clinical outcomes included change in SOFA, duration of mechanical ventilation and the incidence of ICU-acquired infections. We used linear mixed models to assess differences in 15 host response biomarkers reflective of key pathophysiological processes from admission to day 4. RESULTS In total, 235 patients started low-dose erythromycin treatment, 470 patients served as controls. Treatment started at a median of 38 [IQR 25-52] hours after ICU admission for a median of 5 [IQR 3-8] total doses in the first course. Matching and weighting resulted in populations well balanced for proposed confounders. We found no differences between patients treated with low-dose erythromycin and control subjects in mortality rate up to day 90: matching HR 0.89 (95% CI 0.64-1.24), weighting HR 0.95 (95% CI 0.66-1.36). There were no differences in secondary clinical outcomes. The change in host response biomarker levels from admission to day 4 was similar between erythromycin-treated and control subjects. CONCLUSION In this target trial emulation in critically ill patients with sepsis, we could not demonstrate an effect of treatment with low-dose erythromycin on mortality, secondary clinical outcomes or host response biomarkers.
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Affiliation(s)
- Tom D. Y. Reijnders
- grid.509540.d0000 0004 6880 3010Center for Experimental and Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Hessel Peters-Sengers
- grid.509540.d0000 0004 6880 3010Center for Experimental and Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Lonneke A. van Vught
- grid.509540.d0000 0004 6880 3010Center for Experimental and Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Fabrice Uhel
- grid.509540.d0000 0004 6880 3010Center for Experimental and Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,grid.414205.60000 0001 0273 556XAP-HP, Hôpital Louis Mourier, DMU ESPRIT, Médecine Intensive-Réanimation, 92700 Colombes, France ,grid.508487.60000 0004 7885 7602Université de Paris, UFR de Médecine, 75018 Paris, France ,grid.465541.70000 0004 7870 0410INSERM U1151, CNRS UMR 8253, Institut Necker-Enfants Malades, 75015 Paris, France
| | - Marc J. M. Bonten
- grid.7692.a0000000090126352Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands ,grid.7692.a0000000090126352Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Olaf L. Cremer
- grid.7692.a0000000090126352Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marcus J. Schultz
- grid.509540.d0000 0004 6880 3010Department of Intensive Care Medicine, and Laboratory of Experimental Intensive Care and Anesthesiology (LEICA), Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands ,grid.10223.320000 0004 1937 0490Mahidol-Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand ,grid.4991.50000 0004 1936 8948Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Martijn M. Stuiver
- grid.509540.d0000 0004 6880 3010Department of Epidemiology and Data Science, Amsterdam Public Health, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Tom van der Poll
- grid.509540.d0000 0004 6880 3010Center for Experimental and Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,grid.7177.60000000084992262Division of Infectious Diseases, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Molinari L, Del Rio-Pertuz G, Smith A, Landsittel DP, Singbartl K, Palevsky PM, Chawla LS, Huang DT, Yealy DM, Angus DC, Kellum JA. Utility of Biomarkers for Sepsis-Associated Acute Kidney Injury Staging. JAMA Netw Open 2022; 5:e2212709. [PMID: 35583867 PMCID: PMC9118077 DOI: 10.1001/jamanetworkopen.2022.12709] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/31/2022] [Indexed: 11/14/2022] Open
Abstract
Importance The 23rd Acute Disease Quality Initiative (ADQI-23) consensus conference proposed a framework to integrate biomarkers into the staging of acute kidney injury (AKI). It is unknown whether tissue inhibitor of metalloproteinases 2 (TIMP-2) and insulinlike growth factor binding protein 7 (IGFBP7) could be used for staging. Objective To test whether higher levels of urinary [TIMP-2] × [IGFBP7] are associated with lower survival among patients with the same functional stage of AKI. Design, Setting, and Participants This cohort study was performed using data from the Protocolized Care for Early Septic Shock (ProCESS) trial, which enrolled critically ill patients with septic shock who presented at academic and community emergency departments and intensive care units in the US from March 2008 to May 2013. Patients with end-stage kidney disease, a reference serum creatinine level of 4 mg/dL or greater (to convert to μmol/L, multiply by 76.25), or missing data on serum creatinine levels or urinary levels of [TIMP-2] × [IGFBP7] were excluded. Data were analyzed from October 2020 to October 2021. Exposures The presence of AKI, assessed using Kidney Disease: Improving Global Outcomes criteria within 24 hours after enrollment and the highest AKI stage as well as urinary [TIMP-2] × [IGFBP7] level at 6 hours after enrollment. A previously reported high-specificity cutoff level for [TIMP-2] × [IGFBP7] of 2.0 (ng/mL)2/1000 was used to categorize patients (including those without functional criteria of AKI) according to the new staging system proposed by the ADQI-23 as biomarker negative (urinary [TIMP-2] × [IGFBP7] level ≤2.0 [ng/mL]2/1000) or biomarker positive ([TIMP-2] × [IGFBP7] >2.0 [ng/mL]2/1000). Main Outcomes and Measures Survival (assessed using Kaplan-Meier plots and the log-rank test) and mortality (assessed using relative risk [RR] 30 days after enrollment). Results The analysis included 999 patients with a median age of 61 years (IQR, 50-73 years); 554 (55.5%) were male. Biomarker-positive patients had lower survival and higher mortality at 30 days in the groups with AKI stage 1 (RR, 2.20; 95% CI, 1.02-4.72), stage 2 (RR, 1.53; 95% CI, 1.04-2.27), and stage 3 (RR, 1.61; 95% CI, 1.00-2.60). The associations were specific to patients with AKI. No difference in 30-day survival was found between biomarker-positive and biomarker-negative patients in the absence of functional criteria for AKI (RR, 1.16; 95% CI, 0.45-3.01). Conclusions and Relevance The findings suggest that assessment of the cell-cycle arrest biomarkers TIMP-2 and IGFBP7 may augment AKI staging for patients with functional criteria for AKI.
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Affiliation(s)
- Luca Molinari
- Center for Critical Care Nephrology, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Translational Medicine, Università degli Studi del Piemonte Orientale, Novara, Italy
| | - Gaspar Del Rio-Pertuz
- Center for Critical Care Nephrology, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock
| | - Ali Smith
- Center for Critical Care Nephrology, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Douglas P. Landsittel
- Department of Biomedical Informatics, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kai Singbartl
- Center for Critical Care Nephrology, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Critical Care Medicine, Mayo Clinic, Phoenix, Arizona
| | - Paul M. Palevsky
- Kidney Medicine (Renal) Section, Medical Service, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Lakhmir S. Chawla
- Department of Medicine, Veterans Affairs Medical Center, San Diego, California
| | - David T. Huang
- Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Emergency Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Donald M. Yealy
- Department of Emergency Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Derek C. Angus
- Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - John A. Kellum
- Center for Critical Care Nephrology, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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Wang Z, Weng J, Yang J, Zhou X, Xu Z, Hou R, Zhou Z, Wang L, Chen C, Jin S. Acute kidney injury-attributable mortality in critically ill patients with sepsis. PeerJ 2022; 10:e13184. [PMID: 35356476 PMCID: PMC8958971 DOI: 10.7717/peerj.13184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/07/2022] [Indexed: 01/12/2023] Open
Abstract
Background To assess whether acute kidney injury (AKI) is independently associated with hospital mortality in ICU patients with sepsis, and estimate the excess AKI-related mortality attributable to AKI. Methods We analyzed adult patients from two distinct retrospective critically ill cohorts: (1) Medical Information Mart for Intensive Care IV (MIMIC IV; n = 15,610) cohort and (2) Wenzhou (n = 1,341) cohort. AKI was defined by Kidney Disease: Improving Global Outcomes (KDIGO) criteria. We applied multivariate logistic and linear regression models to assess the hospital and ICU mortality, hospital length-of-stay (LOS), and ICU LOS. The excess attributable mortality for AKI in ICU patients with sepsis was further evaluated. Results AKI occurred in 5,225 subjects in the MIMIC IV cohort (33.5%) and 494 in the Wenzhou cohort (36.8%). Each stage of AKI was an independent risk factor for hospital mortality in multivariate logistic regression after adjusting for baseline illness severity. The excess attributable mortality for AKI was 58.6% (95% CI [46.8%-70.3%]) in MIMIC IV and 44.6% (95% CI [12.7%-76.4%]) in Wenzhou. Additionally, AKI was independently associated with increased ICU mortality, hospital LOS, and ICU LOS. Conclusion Acute kidney injury is an independent risk factor for hospital and ICU mortality, as well as hospital and ICU LOS in critically ill patients with sepsis. Thus, AKI is associated with excess attributable mortality.
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Affiliation(s)
- Zhiyi Wang
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China,Center for Health Assessment, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jie Weng
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jinwen Yang
- Department of Geriatric Medicine, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Xiaoming Zhou
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhe Xu
- Department of Emergency Intensive Care Unit, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ruonan Hou
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhiliang Zhou
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liang Wang
- Department of Public Health, Robbins College of health and Human Sciences, Baylor University, Waco, TX, United States of America
| | - Chan Chen
- Department of Geriatric Medicine, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Shengwei Jin
- Department of Anesthesia and Critical Care, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Molema G, Zijlstra JG, van Meurs M, Kamps JAAM. Renal microvascular endothelial cell responses in sepsis-induced acute kidney injury. Nat Rev Nephrol 2022; 18:95-112. [PMID: 34667283 DOI: 10.1038/s41581-021-00489-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2021] [Indexed: 12/29/2022]
Abstract
Microvascular endothelial cells in the kidney have been a neglected cell type in sepsis-induced acute kidney injury (sepsis-AKI) research; yet, they offer tremendous potential as pharmacological targets. As endothelial cells in distinct cortical microvascular segments are highly heterogeneous, this Review focuses on endothelial cells in their anatomical niche. In animal models of sepsis-AKI, reduced glomerular blood flow has been attributed to inhibition of endothelial nitric oxide synthase activation in arterioles and glomeruli, whereas decreased cortex peritubular capillary perfusion is associated with epithelial redox stress. Elevated systemic levels of vascular endothelial growth factor, reduced levels of circulating sphingosine 1-phosphate and loss of components of the glycocalyx from glomerular endothelial cells lead to increased microvascular permeability. Although coagulation disbalance occurs in all microvascular segments, the molecules involved differ between segments. Induction of the expression of adhesion molecules and leukocyte recruitment also occurs in a heterogeneous manner. Evidence of similar endothelial cell responses has been found in kidney and blood samples from patients with sepsis. Comprehensive studies are needed to investigate the relationships between segment-specific changes in the microvasculature and kidney function loss in sepsis-AKI. The application of omics technologies to kidney tissues from animals and patients will be key in identifying these relationships and in developing novel therapeutics for sepsis.
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Affiliation(s)
- Grietje Molema
- Dept. Pathology and Medical Biology, Medical Biology section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.
| | - Jan G Zijlstra
- Dept. Critical Care, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Matijs van Meurs
- Dept. Pathology and Medical Biology, Medical Biology section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.,Dept. Critical Care, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jan A A M Kamps
- Dept. Pathology and Medical Biology, Medical Biology section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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Non-linear and Interaction Analyses of Biomarkers for Organ Dysfunctions as Predictive Markers for Sepsis: A Nationwide Retrospective Study. J Pers Med 2022; 12:jpm12010044. [PMID: 35055359 PMCID: PMC8778987 DOI: 10.3390/jpm12010044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 11/25/2022] Open
Abstract
The Sequential Organ Failure Assessment (SOFA) score is predominantly used to assess the severity of organ dysfunction in sepsis. However, differences in prognostic value between SOFA subscores have not been sufficiently evaluated. This retrospective observational study used a large-scale database containing about 30 million patients. Among them, we included 38,869 adult patients with sepsis from 2006 to 2019. The cardiovascular and neurological subscores were calculated by a modified method. Associations between the biomarkers of the SOFA components and mortality were examined using restricted cubic spline analyses, which showed that an increase in the total modified SOFA score was linearly associated with increased mortality. However, the prognostic association of subscores varied widely: platelet count showed a J-shaped association, creatinine showed an inverted J-shaped association, and bilirubin showed only a weak association. We also evaluated interaction effects on mortality between an increase of one subscore and another. The joint odds ratios on mortality of two modified SOFA subscores were synergistically increased compared to the sum of the single odds ratios, especially in cardiovascular-neurological, coagulation-hepatic, and renal-hepatic combinations. In conclusion, total modified SOFA score was associated with increased mortality despite the varied prognostic associations of the subscores, possibly because interactions between subscores synergistically enhanced prognostic accuracy.
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Chen HC, Wu CY, Hsieh HY, He JS, Hwang SJ, Hsieh HM. Predictors and Assessment of Hospice Use for End-Stage Renal Disease Patients in Taiwan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 19:85. [PMID: 35010349 PMCID: PMC8751193 DOI: 10.3390/ijerph19010085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES Hospice and early palliative care are generally considered as an alternative and supportive care to offer symptoms relief and optimize the quality of life among end-stage renal disease (ESRD) patients, but hospice care remains underutilized. This study aimed to examine patient and health system characteristics and develop a patient assessment scale to evaluate ESRD patients for hospice care after the implementation of non-cancer hospice care reimbursement policy in 2009 in Taiwan. METHOD We conducted a retrospective cohort study using nationwide population-based datasets. Adult long-term dialysis patients between 2009 and 2012 were included. Multivariable logistic regression and the Firth penalized likelihood estimation were used to estimate the likelihood of receiving hospice care. A receiver operating characteristic curve (ROC) analysis and C-statistic were calculated to determine the optimal models for a patient assessment of hospice use. RESULTS Patients who were older, comorbid with anemia (odds ratio [OR] 3.53, 95% CI 1.43-8.70) or sepsis (OR 1.62, 95% CI 1.08-2.44), with longer dialysis durations, more hospitalizations (OR 4.68, 95% CI 2.56-8.55), or primary provider care with hospice (OR 5.15, 95% CI 2.80-9.45) were more likely to receive hospice care. The total score of the patient assessment scale of hospice care was 0-28 with a cut-off value of 19 based on the results of the receiver operating characteristic curve. CONCLUSION Given the "Patient Right to Autonomy Act" implemented in Taiwan in 2019 to promote the concept of a "good quality of death", this patient assessment scale may help health professionals target ESRD patients for hospice care and engage in shared decision making and the advance care planning process.
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Affiliation(s)
- Hung-Cheng Chen
- Department of Nursing, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (H.-C.C.); (H.-Y.H.)
| | - Chien-Yi Wu
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Hui-Ya Hsieh
- Department of Nursing, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (H.-C.C.); (H.-Y.H.)
| | - Jiun-Shiuan He
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Shang-Jyh Hwang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Hui-Min Hsieh
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Public Health, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Community Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center for Big Data Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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20
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Luo XQ, Yan P, Zhang NY, Luo B, Wang M, Deng YH, Wu T, Wu X, Liu Q, Wang HS, Wang L, Kang YX, Duan SB. Machine learning for early discrimination between transient and persistent acute kidney injury in critically ill patients with sepsis. Sci Rep 2021; 11:20269. [PMID: 34642418 PMCID: PMC8511088 DOI: 10.1038/s41598-021-99840-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/30/2021] [Indexed: 12/29/2022] Open
Abstract
Acute kidney injury (AKI) is commonly present in critically ill patients with sepsis. Early prediction of short-term reversibility of AKI is beneficial to risk stratification and clinical treatment decision. The study sought to use machine learning methods to discriminate between transient and persistent sepsis-associated AKI. Septic patients who developed AKI within the first 48 h after ICU admission were identified from the Medical Information Mart for Intensive Care III database. AKI was classified as transient or persistent according to the Acute Disease Quality Initiative workgroup consensus. Five prediction models using logistic regression, random forest, support vector machine, artificial neural network and extreme gradient boosting were constructed, and their performance was evaluated by out-of-sample testing. A simplified risk prediction model was also derived based on logistic regression and features selected by machine learning algorithms. A total of 5984 septic patients with AKI were included, 3805 (63.6%) of whom developed persistent AKI. The artificial neural network and logistic regression models achieved the highest area under the receiver operating characteristic curve (AUC) among the five machine learning models (0.76, 95% confidence interval [CI] 0.74-0.78). The simplified 14-variable model showed adequate discrimination, with the AUC being 0.76 (95% CI 0.73-0.78). At the optimal cutoff of 0.63, the sensitivity and specificity of the simplified model were 63% and 76% respectively. In conclusion, a machine learning-based simplified prediction model including routine clinical variables could be used to differentiate between transient and persistent AKI in critically ill septic patients. An easy-to-use risk calculator can promote its widespread application in daily clinical practice.
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Affiliation(s)
- Xiao-Qin Luo
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Ping Yan
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Ning-Ya Zhang
- Information Center, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Bei Luo
- Department of Information Systems, City University of Hong Kong, Tat Chee Avenue, Kowloon, 999077, Hong Kong SAR, China
| | - Mei Wang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Ying-Hao Deng
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Ting Wu
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Xi Wu
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Qian Liu
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Hong-Shen Wang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Lin Wang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Yi-Xin Kang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Shao-Bin Duan
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, 139 Renmin Road, Changsha, 410011, Hunan, China.
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Al-Amodi HS, Abdelsattar S, Kasemy ZA, Bedair HM, Elbarbary HS, Kamel HFM. Potential Value of TNF-α (-376 G/A) Polymorphism and Cystatin C (CysC) in the Diagnosis of Sepsis Associated Acute Kidney Injury (S-AK I) and Prediction of Mortality in Critically Ill patients. Front Mol Biosci 2021; 8:751299. [PMID: 34692772 PMCID: PMC8526786 DOI: 10.3389/fmolb.2021.751299] [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: 07/31/2021] [Accepted: 09/20/2021] [Indexed: 12/29/2022] Open
Abstract
Sepsis Associated Kidney Injury represents a major health concern as it is frequently associated with increased risk of mortality and morbidity. We aimed to evaluate the potential value of TNF-α (-376 G/A) and cystatin C in the diagnosis of S-AKI and prediction of mortality in critically ill patients. This study included 200 critically ill patients and 200 healthy controls. Patients were categorized into 116 with acute septic shock and 84 with sepsis, from which 142 (71%) developed S-AKI. Genotyping of TNF-α (-376 G/A) was performed by RT-PCR and serum CysC was assessed by Enzyme Linked Immunosorbent Assay. Our results showed a highly significant difference in the genotype frequencies of TNF-α (-376 G/A) SNP between S-AKI and non-AKI patients (p < 0.001). Additionally, sCysC levels were significantly higher in the S-AKI group (p = 0.011). The combination of both sCysC and TNF-α (-376 G/A) together had a better diagnostic ability for S-AKI than sCysC alone (AUC = 0.610, 0.838, respectively). Both GA and AA genotypes were independent predictors of S-AKI (p= < 0.001, p = 0.002 respectively). Additionally, sCysC was significantly associated with the risk of S-AKI development (Odds Ratio = 1.111). Both genotypes and sCysC were significant predictors of non-survival (p < 0.001), suggesting their potential role in the diagnosis of S-AKI and prediction of mortality.
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Affiliation(s)
- Hiba S Al-Amodi
- Biochemistry Department, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Shimaa Abdelsattar
- Clinical Biochemistry and Molecular Diagnostics Department, National Liver Institute, Menoufia University, Shebine Elkoum, Egypt
| | - Zeinab A. Kasemy
- Department of Public Health and Community Medicine, Faculty of Medicine, Menoufia University, Shebine Elkoum, Egypt
| | - Hanan M. Bedair
- Clinical Pathology Department, National Liver Institute, Menoufia University, Shebine Elkoum, Egypt
| | - Hany S. Elbarbary
- Department of Internal Medicine, Renal Unit, Faculty of Medicine, Menoufia University, Shebine Elkoum, Egypt
- Department of Internal Medicine, Renal Unit, Faculty of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Hala F. M. Kamel
- Biochemistry Department, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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22
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Shen K, Qu W, Zhao GK, Cheng ZH, Li J, Deng XQ, Xu DW. Kinetic changes in serum procalcitonin predict persistent acute kidney injury in critical patients. Nephrology (Carlton) 2021; 26:872-878. [PMID: 34482582 DOI: 10.1111/nep.13972] [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: 06/22/2021] [Revised: 08/06/2021] [Accepted: 08/31/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Persistent acute kidney injury (AKI) has been shown to be closely associated with poor prognosis in critical patients. Recent studies have shown that procalcitonin (PCT) is valuable for the early prediction of AKI in critically patients. Our aim was to determine whether PCT and its kinetic changes could predict the occurrence of persistent AKI in critical patients. METHODS This is a prospective observational study. The definition of AKI was based on the Kidney Disease: Improving Global Outcomes criteria. Persistent AKI was defined as renal function that does not return to baseline serum creatinine levels within 48 h. Blood samples were obtained at the onset of AKI and two subsequent days of hospital stay. 24-h PCT change (ΔPCT-24 h) was defined as 24 h PCT minus baseline PCT (day 0). RESULTS A total of 91 critical patients with AKI were included in this study. The persistent AKI group had a stepwise increase in PCT concentration. ΔPCT-24 h was higher in the persistent AKI group (p < .01). Logistic regression analysis showed that ΔPCT-24 h (p = .04) was independent predictors of persistent AKI. The receiver operating characteristic curves showed that area under the curve of ΔPCT-24 h was 0.84 (p < .01), and the cut-off value for PCT to predict persistent AKI was 0.56 ng/ml. CONCLUSION Our study showed that the observation of kinetic changes in PCT is more significant for the early prediction of persistent AKI than the index of PCT at a single time point. ΔPCT-24 h is a good predictor of persistent AKI in critical patients.
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Affiliation(s)
- Kan Shen
- Department of Critical Care Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Wei Qu
- Department of Critical Care Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Guang-Kuo Zhao
- Department of Critical Care Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Zhi-Hui Cheng
- Department of Critical Care Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Jun Li
- Department of Critical Care Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Xing-Qi Deng
- Department of Critical Care Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Dong-Wei Xu
- Department of Critical Care Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
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Jiang YJ, Xi XM, Jia HM, Zheng X, Wang MP, Li W, Li WX. Risk factors, clinical features and outcome of new-onset acute kidney injury among critically ill patients: a database analysis based on prospective cohort study. BMC Nephrol 2021; 22:289. [PMID: 34433442 PMCID: PMC8390222 DOI: 10.1186/s12882-021-02503-x] [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: 02/21/2021] [Accepted: 08/14/2021] [Indexed: 12/29/2022] Open
Abstract
Background Acute kidney injury (AKI) newly-emerged in intensive care unit (ICU), has not been thoroughly studied in previous researches, is likely to differ from AKI developed before ICU admission. This study aimed to evaluate the incidence, risk factors, clinical features and outcome of new-onset AKI in critically ill patients. Methods The data of present study derived from a multicenter, prospective cohort study in17 Chinese ICUs (January 2014 - August 2015). The incidence, risk factors, clinical features and survival analysis of new-onset AKI were assessed. Results A total of 3374 adult critically ill patients were eligible. The incidence of new-onset AKI was 30.0 % (n = 1012). Factors associated with a higher risk of new-onset AKI included coronary heart disease, hypertension, chronic liver disease, use of nephrotoxic drugs, sepsis, SOFA score, APACHEII score and use of vasopressors. The new-onset AKI was an independent risk factor for 28-day mortality (adjusted hazard ratio, 1.643; 95 % CI, 1.370–1.948; P < 0.001). 220 (21.7 %) patients received renal replacement therapy (RRT), 71 (32.3 %) of them were successfully weaning from RRT. More than half of the new-onset AKI were transient AKI (renal recovery within 48 h). There was no statistical relationship between transient AKI and 28-day mortality (hazard ratio, 1.406; 95 % CI, 0.840–1.304; P = 0.686), while persistent AKI (non-renal recovery within 48 h) was strongly associated with 28-day mortality (adjusted hazard ratio, 1.486; 95 % CI, 1.137–1.943; P < 0.001). Conclusions New-onset AKI is common in ICU patients and is associated with significantly higher 28-day mortality. Only persistent AKI, but not transient AKI is associated with significantly higher 28-day mortality. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-021-02503-x.
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Affiliation(s)
- Yi-Jia Jiang
- Department of Surgical Intensive Critical Unit, Beijing Chao-yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, 100020, Beijing, China
| | - Xiu-Ming Xi
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
| | - Hui-Miao Jia
- Department of Surgical Intensive Critical Unit, Beijing Chao-yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, 100020, Beijing, China
| | - Xi Zheng
- Department of Surgical Intensive Critical Unit, Beijing Chao-yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, 100020, Beijing, China
| | - Mei-Ping Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China
| | - Wen Li
- Department of Critical Care Medicine, Fuxing Hospital, Capital Medical University, Beijing, China
| | - Wen-Xiong Li
- Department of Surgical Intensive Critical Unit, Beijing Chao-yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, 100020, Beijing, China.
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Acute Kidney Injury Recovery Patterns in Critically Ill Patients: Results of a Retrospective Cohort Study. Crit Care Med 2021; 49:e683-e692. [PMID: 33826581 DOI: 10.1097/ccm.0000000000005008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Acute kidney injury, acute kidney injury severity, and acute kidney injury duration are associated with both short- and long-term outcomes. Despite recent definitions, only few studies assessed pattern of renal recovery and time-dependent competing risks are usually disregarded. Our objective was to describe pattern of acute kidney injury recovery, change of transition probability over time and their risk factors. DESIGN Monocenter retrospective cohort study. Acute kidney injury was defined according to Kidney Disease Improving Global Outcomes definition. Renal recovery was defined as normalization of both serum creatinine and urine output criteria. Competing risk analysis, time-inhomogeneous Markov model, and group-based trajectory modeling were performed. SETTING Monocenter study. PATIENTS Consecutive patients admitted in ICU from July 2018 to December 2018 were included. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Three-hundred fifty patients were included. Acute kidney injury occurred in 166 patients at ICU admission, including 64 patients (38.6%) classified as acute kidney disease according to Acute Disease Quality Initiative definition and 44 patients (26.5%) who could not be classified. Cumulative incidence of recovery was 25 % at day 2 (95% CI, 18-32%) and 35% at day 7 (95% CI, 28-42%). After adjustment, need for mechanical ventilation (subdistribution hazard ratio, 0.42; 95% CI, 0.23-0.74) and severity of the acute kidney injury (stage 3 vs stage 1 subdistribution hazard ratio, 0.11; 95% CI, 0.03-0.35) were associated with lack of recovery. Group-based trajectory modeling identified three clusters of temporal changes in this setting, associated with both acute kidney injury recovery and patients' outcomes. CONCLUSIONS In this study, we demonstrate Acute Disease Quality Initiative to allow recovery pattern classification in 75% of critically ill patients. Our study underlines the need to take into account competing risk factors when assessing recovery pattern in critically ill patients.
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Coelho S, Monteiro M, Santos J, Correia F, Rodrigues P, Rito M, Freitas P. Impact of sterile leukocyturia on outcome of critically ill patients with severe acute kidney injury. J Crit Care 2021; 64:1-6. [PMID: 33721608 DOI: 10.1016/j.jcrc.2021.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 11/15/2022]
Abstract
INTRODUCTION The role of immunological mechanisms on renal regeneration and functional recovery after an episode of Acute Kidney Injury (AKI) is still understudied. We aim to evaluate the impact of sterile leukocyturia on outcomes of critically-ill AKI patients. METHODS A retrospective analysis of critically-ill patients with stage ≥2 AKI by KDIGO was performed. Patients with urinary tract infection, previous renal replacement therapy, chronic kidney disease stage >3 and kidney, urinary tract or prostatic cancer were excluded. Sterile leukocyturia was defined as a positive leukocyte esterase value. RESULTS 108 patients with stage ≥2 AKI were included, 39.8% of which had sterile leukocyturia. AKI patients with sterile leukocyturia were older, had more cardiovascular disease and a lower baseline renal function (p < 0.05). They had a higher serum creatinine and leukocytosis at admission, were more frequently septic (p < 0.05) and had more persistent AKI by both KDIGO criteria at multivariable analysis (OR 6.130, 95% CI 2.007-18.747). CONCLUSION Sterile leukocyturia was associated with different patient baseline and AKI characteristics and more persistent AKI by both KDIGO criteria. Sterile leukocyturia may represent a surrogate marker of renal inflammation during AKI.
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Affiliation(s)
- Sílvia Coelho
- Intensive Care Department, Hospital Fernando Fonseca EPE, Amadora, Portugal; CEDOC- Chronic Diseases Research Center, NOVA Medical School, NOVA University of Lisbon, Portugal.
| | - Margarida Monteiro
- Internal Medicine Department, Hospital Fernando Fonseca EPE, Amadora, Portugal
| | - Joana Santos
- Nephrology Department, Hospital Espírito Santo, Évora, Portugal
| | | | | | - Matilde Rito
- NOVA Medical School, NOVA University of Lisbon, Portugal
| | - Paulo Freitas
- Intensive Care Department, Hospital Fernando Fonseca EPE, Amadora, Portugal
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Kellum JA, Nadim MK. Acute kidney disease and cirrhosis. J Hepatol 2021; 74:500-501. [PMID: 33243430 DOI: 10.1016/j.jhep.2020.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/04/2022]
Affiliation(s)
- John A Kellum
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Mitra K Nadim
- Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Simonis FD, Schouten LRA, Cremer OL, Ong DSY, Amoruso G, Cinella G, Schultz MJ, Bos LD. Prognostic classification based on P/F and PEEP in invasively ventilated ICU patients with hypoxemia-insights from the MARS study. Intensive Care Med Exp 2020; 8:43. [PMID: 33336322 PMCID: PMC7746417 DOI: 10.1186/s40635-020-00334-y] [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: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 12/15/2022] Open
Abstract
Background Outcome prediction in patients with acute respiratory distress syndrome (ARDS) greatly improves when patients are reclassified based on predefined arterial oxygen partial pressure to fractional inspired oxygen ratios (PaO2/FiO2) and positive end–expiratory pressure (PEEP) cutoffs 24 h after the initial ARDS diagnosis. The aim of this study was to test whether outcome prediction improves when patients are reclassified based on predefined PaO2/FiO2 and PEEP cutoffs 24 h after development of mild hypoxemia while not having ARDS. Methods Post hoc analysis of a large prospective, multicenter, observational study that ran in the ICUs of two academic hospitals in the Netherlands between January 2011 and December 2013. Patients were classified into four groups using predefined cutoffs for PaO2/FiO2 (250 mmHg) and PEEP (5 cm H2O), both at onset of hypoxemia and after 24 h: PaO2/FiO2 ≥ 250 mmHg and PEEP < 6 cm H2O (group I), PaO2/FiO2 ≥ 250 mmHg and PEEP ≥ 6 cm H2O (group II), PaO2/FiO2 < 250 mmHg and PEEP < 6 cm H2O (group III), and PaO2/FiO2 < 250 mmHg and PEEP ≥ 6 cm H2O (group IV), to look for trend association with all-cause in-hospital mortality, the primary outcome. Secondary outcome were ICU- and 90-day mortality, and the number of ventilator-free days or ICU-free days and alive at day 28. Results The analysis included 689 consecutive patients. All-cause in-hospital mortality was 35%. There was minimal variation in mortality between the four groups at onset of hypoxemia (33, 36, 38, and 34% in groups I to IV, respectively; P = 0.65). Reclassification after 24 h resulted in a strong trend with increasing mortality from group I to group IV (31, 31, 37, and 48% in groups I to IV, respectively; P < 0.01). Similar trends were found for the secondary endpoints. Conclusions Reclassification using PaO2/FiO2 and PEEP cutoffs after 24 h improved classification for outcome in invasively ventilated ICU patients with hypoxemia not explained by ARDS, compared to classification at onset of hypoxemia. Trial registration ClinicalTrials.gov identifier: NCT01905033. Registered on July 11, 2013. Retrospectively registered.
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Affiliation(s)
- Fabienne D Simonis
- Department of Intensive Care, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands.
| | - Laura R A Schouten
- Department of Intensive Care, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
| | - Olaf L Cremer
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - David S Y Ong
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Gabriele Amoruso
- Department of Anesthesia and Intensive Care, University of Foggia, Foggia, Italy
| | - Gilda Cinella
- Department of Anesthesia and Intensive Care, University of Foggia, Foggia, Italy
| | - Marcus J Schultz
- Department of Intensive Care, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care & Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand.,Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Lieuwe D Bos
- Department of Intensive Care, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands.,Department of Pulmonology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
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28
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Laszczyńska O, Severo M, Correia S, Azevedo A. Estimation of Missing Baseline Serum Creatinine for Acute Kidney Injury Diagnosis in Hospitalized Patients. Nephron Clin Pract 2020; 145:123-132. [PMID: 33341804 DOI: 10.1159/000512080] [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: 03/21/2020] [Accepted: 09/30/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION In hospitalized patients, information on preadmission kidney function is often missing, impeding timely and accurate acute kidney injury (AKI) detection and affecting results of AKI-related studies. OBJECTIVE In this study, we provided estimates of preadmission serum creatinine (SCr), based on a multivariate linear regression (Model 1) and random forest model (Model 2) built with different parametrizations. Their accuracy for AKI diagnosis was compared with the accuracy of commonly used surrogate methods: (i) SCr at hospital admission (first SCr) and (ii) SCr back-calculated from the assumed estimated glomerular filtration rate of 75 mL/min/1.73 m2 (eGFR 75). METHODS From 44,670 unique adult admissions to a tertiary referral centre between 2013 and 2015, we analysed 8,540 patients with preadmission SCr available. To control for differences in characteristics of patients with and without SCr, we used an inverse probability weighting technique. RESULTS Estimates of SCr were likely to be higher than true preadmission SCr in a low Cr concentration and undervalued in high concentrations although for Model 2 Complete-SCr these differences were smallest. The true cumulative incidence of AKI was 14.8%. Model 2 Complete-SCr had the best agreement for AKI diagnosis (kappa 0.811, 95% CI 0.787-0.835), while surrogate methods resulted in the lowest agreement: (kappa 0.553, 0.516-0.590) and (0.648, 0.620-0.676) for first SCr and eGFR 75, respectively. CONCLUSIONS Multivariable imputation of preadmission SCr, taking into account elementary admission data, improved accuracy in AKI diagnosis over commonly used surrogate methods. Random forest-based models can serve as an effective tool in research.
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Affiliation(s)
- Olga Laszczyńska
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal,
| | - Milton Severo
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.,Departamento de Ciências da Saúde Pública e Forenses e Educação Médica, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Sofia Correia
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.,Departamento de Ciências da Saúde Pública e Forenses e Educação Médica, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Ana Azevedo
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.,Departamento de Ciências da Saúde Pública e Forenses e Educação Médica, Faculdade de Medicina da Universidade do Porto, Porto, Portugal.,Centro de Epidemiologia Hospitalar, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal
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