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Yang Y, Yang B, Zhao S, Liu S, Zhou H, Xu N, Yang M. A lower eGFR cystatin C/eGFR creatinine ratio is associated with greater cardiovascular risk (higher Framingham Risk Score) in Chinese patients with newly diagnosed type 2 diabetes mellitus. Ren Fail 2024; 46:2346267. [PMID: 38905298 PMCID: PMC11195453 DOI: 10.1080/0886022x.2024.2346267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 04/17/2024] [Indexed: 06/23/2024] Open
Abstract
BACKGROUND Cardiovascular disease (CVD) is the leading cause of mortality in type 2 diabetes mellitus (T2DM) patients. Shrunken pore syndrome (SPS) is defined as eGFRcystatin C/eGFRcreatinine ratio <0.70 and predicts high CVD mortality. The Framingham Risk Score (FRS) is used to estimate an individual's 10-year CVD risk. This study investigated the association between FRS and eGFRcystatin C/eGFRcreatinine ratio in T2DM patients. METHODS Patients aged 18-80 years who were newly diagnosed with T2DM were included in this retrospective study. Ordinal logistic regression analysis was used to investigate the association between risk factors of T2DM and FRS. A Generalized Linear Model was used to calculate odds ratios (OR) and 95% confidence intervals (CI). RESULTS There were 270 patients included in the study. Only 27 patients (10%) met the diagnostic criteria of SPS. Ordinal logistic regression analysis showed that SPS was not correlated with FRS risk (OR = 1.99, 95%CI = 0.94-4.23, p = 0.07), whereas eGFRcystatin C/eGFRcreatinine (OR = 0.86, 95%CI = 0.77-0.97, p = 0.01) showed a significant negative association with FRS risk. Compared with eGFRcystatin C/eGFRcreatinine>0.85, eGFRcystatin C/eGFRcreatinine≤0.85 increased FRS risk (OR = 1.95, 95%CI = 1.18-3.21, p < 0.01). After adjustment for confounding factors, increased eGFRcystatin C/eGFRcreatinine ratio was associated with decreased FRS risk when considered as a continuous variable (OR = 0.87, 95%CI = 0.77-0.99, p = 0.03). The FRS risk in patients with eGFRcystatin C/eGFRcreatinine≤0.85 is 1.86 times higher than that in patients with eGFRcystatin C/eGFRcreatinine>0.85 (OR = 1.86, 95%CI = 1.08-3.21, p = 0.03). CONCLUSIONS In the current study, no significant association between SPS and FRS was identified. However, lower eGFRcystatin C/eGFRcreatinine and eGFRcystatin C/eGFRcreatinine≤0.85 were associated with a significantly increased CVD risk in T2DM.
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Affiliation(s)
- Yan Yang
- Department of Nephrology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Bixia Yang
- Department of Nephrology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Shizhu Zhao
- Department of Nephrology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Shusu Liu
- Department of Nephrology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Hua Zhou
- Department of Nephrology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Ning Xu
- Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Min Yang
- Department of Nephrology, The Third Affiliated Hospital of Soochow University, Changzhou, China
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Heo GY, Koh HB, Jung CY, Park JT, Han SH, Yoo TH, Kang SW, Kim HW. Difference Between Estimated GFR Based on Cystatin C Versus Creatinine and Incident Atrial Fibrillation: A Cohort Study of the UK Biobank. Am J Kidney Dis 2024; 83:729-738.e1. [PMID: 38171411 DOI: 10.1053/j.ajkd.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 10/16/2023] [Accepted: 11/05/2023] [Indexed: 01/05/2024]
Abstract
RATIONALE & OBJECTIVE The difference between cystatin C-based and creatinine-based estimated glomerular filtration rate (eGFRdiff) has been suggested to reflect factors distinct from kidney function that are associated with cardiovascular risk. However, the association between eGFRdiff and atrial fibrillation (AF) risk has not been extensively evaluated. STUDY DESIGN Prospective cohort study. SETTING & PARTICIPANTS Using data from the UK Biobank, this study included 363,494 participants with measured serum creatinine and cystatin C levels and without a prior diagnosis of AF or a history of related procedures. EXPOSURE Estimated GFRdiff, calculated as cystatin C-based eGFR minus creatinine-based eGFR. Estimated GFRdiff was also categorized as negative (<-15mL/min/1.73m2), midrange (-15 to 15mL/min/1.73m2), or positive (≥15mL/min/1.73m2). OUTCOME Incident AF. ANALYTICAL APPROACH Subdistribution hazard models were fit, treating death that occurred before development of AF as a competing event. RESULTS During the median follow-up period of 11.7 years, incident AF occurred in 18,994 (5.2%) participants. In the multivariable-adjusted model, participants with a negative eGFRdiff had a higher risk of incident AF (subdistribution HR [SHR], 1.25 [95% CI, 1.20-1.30]), whereas participants with a positive eGFRdiff had a lower risk of AF (SHR, 0.81 [95% CI, 0.77-0.87]) compared with those with a midrange eGFRdiff. When eGFRdiff was treated as a continuous variable in the adjusted model, every 10mL/min/1.73m2 higher eGFRdiff was associated with a 0.90-fold decrease in the risk of incident AF. LIMITATIONS A single measurement of baseline serum creatinine and cystatin C levels. CONCLUSIONS The difference between cystatin C- and creatinine-based eGFRs was associated with the risk of AF development. A higher eGFRdiff was associated with a lower risk of AF. These findings may have implications for the management of patients at risk of incident AF. PLAIN-LANGUAGE SUMMARY The difference between cystatin C-based estimated glomerular filtration rate (eGFR) and creatinine-based eGFR has recently gained attention as a potential indicator of cardiovascular outcomes influenced by factors other than kidney function. This study investigated the association between the differences in 2 eGFRs (cystatin C-based eGFR minus creatinine-based eGFR) and incident atrial fibrillation (AF) among>340,000 participants from the UK Biobank Study. Compared with those with a near zero eGFR difference, participants with a negative eGFR difference had a higher risk of AF, while those with a positive eGFR difference had a lower risk. These findings suggest that measuring eGFR differences may help identify individuals at a higher risk of developing AF.
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Affiliation(s)
- Ga Young Heo
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Hee Byung Koh
- Division of Nephrology, International Saint Mary's Hospital, Catholic Kwandong University, Gangneung, South Korea
| | - Chan-Young Jung
- Division of Nephrology, Department of Internal Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Jung Tak Park
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Shin-Wook Kang
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyung Woo Kim
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea; Institute for Innovation in Digital Healthcare, Yonsei University, Seoul, South Korea.
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Shen R, Xu Z, Lin L, Shen J, Hu W, Lv L, Wei T. Association between adequate dietary protein and all-cause and cardiovascular mortality in patients with selective glomerular hypofiltration syndrome. Food Funct 2024; 15:2433-2442. [PMID: 38363105 DOI: 10.1039/d3fo03212d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Aims: To determine the impact of dietary protein intake and protein sources on all-cause and cardiovascular mortality of selective glomerular hypofiltration syndrome (SGHS) patients. Methods: This study recruited participants from the National Health and Nutrition Examination Survey (NHANES) conducted between 1999 and 2004. Cox proportional hazard models and competing risk models were employed to investigate the effects of dietary protein intake and protein sources on all-cause and cardiovascular mortality in SGHS patients. Additionally, Cox regression models utilizing restricted cubic splines (RCS) were used to explore potential non-linear associations. Results: Over a median follow-up period of 204 months, 20.71% (449/2168) participants died, with 5.40% (117/2168) experiencing cardiovascular mortality. In the fully adjusted model, participants with the highest dietary protein intake (Q4, ≥107.13 g d-1) exhibited a 40% reduced risk of all-cause mortality (HR: 0.60, 95% CI: 0.39 to 0.94) and an 88% reduced risk of cardiovascular mortality (HR: 0.12, 95% CI: 0.04 to 0.35) compared to those with the lowest dietary protein intake (Q1, < 57.93 g d-1). Notably, non-red meat protein sources were found to reduce the risk of all-cause and cardiovascular mortality, whereas no significant association was observed with red meat consumption. Conclusion: Adequate dietary protein intake has been linked to a decreased risk of all-cause and cardiovascular mortality in individuals with selective glomerular hypofiltration syndromes. This protective effect seems to be primarily associated with protein obtained from non-red meat sources.
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Affiliation(s)
- Ruming Shen
- Lishui Hospital, Zhejiang University School of Medicine, Lishui, China.
- Lishui Central Hospital and Fifth Affiliated Hospital of Wenzhou Medical College, Lishui, China
| | - Zhongjiao Xu
- Lishui Central Hospital and Fifth Affiliated Hospital of Wenzhou Medical College, Lishui, China
| | - Li Lin
- Lishui Central Hospital and Fifth Affiliated Hospital of Wenzhou Medical College, Lishui, China
| | - Jiayi Shen
- Lishui Central Hospital and Fifth Affiliated Hospital of Wenzhou Medical College, Lishui, China
| | - Wuming Hu
- Lishui Central Hospital and Fifth Affiliated Hospital of Wenzhou Medical College, Lishui, China
| | - Lingchun Lv
- Lishui Hospital, Zhejiang University School of Medicine, Lishui, China.
- Lishui Central Hospital and Fifth Affiliated Hospital of Wenzhou Medical College, Lishui, China
| | - Tiemin Wei
- Lishui Hospital, Zhejiang University School of Medicine, Lishui, China.
- Lishui Central Hospital and Fifth Affiliated Hospital of Wenzhou Medical College, Lishui, China
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Roussel M, Bacchetta J, Sellier-Leclerc AL, Lemoine S, De Mul A, Derain Dubourg L. Is shrunken pore syndrome also a reality in children? J Intern Med 2024; 295:253-258. [PMID: 38058272 DOI: 10.1111/joim.13749] [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] [Indexed: 12/08/2023]
Abstract
BACKGROUND Shrunken pore syndrome (SPS) is defined as cystatin C-based-eGFR (eGFRcys)/creatinine-based-eGFR (eGFRcreat) <0.6 or 0.7 and is associated with an increased cardiovascular risk. SPS has been described in children, but no link to increased morbi-mortality was demonstrated. OBJECTIVES Study the prevalence of SPS in a pediatric population using several glomerular filtration rate (GFR) estimating formulas and measured GFR and evaluate the potential link with cardiovascular risk. METHODS In 307 renal risk pediatric patients, we studied prevalence of SPS either with CKiDU25creat and cyst or with FAScreat and cyst and EKFCcreat. The characteristics of patients with SPS (defined with Full-age spectrum equation (FAS) and/or European Kidney Function Consortium equation (EKFC)) were compared. RESULTS AND CONCLUSION The prevalence of SPS varies widely depending on the threshold and the formulas used. Higher C-reactive protein (CRP) and phosphate levels and smaller size are observed in children with SPS defined with FAS and/or EKFC and might be associated with long-term increased cardiovascular risk. Further studies in wider general pediatric populations are warranted.
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Affiliation(s)
- Mathilde Roussel
- Service de Néphrologie Rhumatologie et Dermatologie Pédiatrique, Centre de Référence des Maladies Rénales Rares, filière maladies rares ORKID and ERKNet, Hospices Civils de Lyon, Bron, France
| | - Justine Bacchetta
- Service de Néphrologie Rhumatologie et Dermatologie Pédiatrique, Centre de Référence des Maladies Rénales Rares, filière maladies rares ORKID and ERKNet, Hospices Civils de Lyon, Bron, France
- Faculté de Médecine Lyon Est, Université de Lyon, Lyon, France
- INSERM U1033, Lyon, France
| | - Anne Laure Sellier-Leclerc
- Service de Néphrologie Rhumatologie et Dermatologie Pédiatrique, Centre de Référence des Maladies Rénales Rares, filière maladies rares ORKID and ERKNet, Hospices Civils de Lyon, Bron, France
| | - Sandrine Lemoine
- Faculté de Médecine Lyon Est, Université de Lyon, Lyon, France
- Service de Néphrologie, Dialyse, Hypertension et Exploration Fonctionnelle Rénale, Centre de Référence des Maladies Rénales Rares MAREGE, filière maladies rares ORKID, Hôpital E. Herriot, Hospices Civils de Lyon, Lyon, France
- INSERM CARMEN 1060 IRIS Team, Lyon, France
| | - Aurélie De Mul
- Service de Néphrologie Rhumatologie et Dermatologie Pédiatrique, Centre de Référence des Maladies Rénales Rares, filière maladies rares ORKID and ERKNet, Hospices Civils de Lyon, Bron, France
- Faculté de Médecine Lyon Est, Université de Lyon, Lyon, France
- Service de Néphrologie, Dialyse, Hypertension et Exploration Fonctionnelle Rénale, Centre de Référence des Maladies Rénales Rares MAREGE, filière maladies rares ORKID, Hôpital E. Herriot, Hospices Civils de Lyon, Lyon, France
| | - Laurence Derain Dubourg
- Faculté de Médecine Lyon Est, Université de Lyon, Lyon, France
- Service de Néphrologie, Dialyse, Hypertension et Exploration Fonctionnelle Rénale, Centre de Référence des Maladies Rénales Rares MAREGE, filière maladies rares ORKID, Hôpital E. Herriot, Hospices Civils de Lyon, Lyon, France
- University of Lyon 1; CNRS UMR 5305, Lyon, France
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Quiroga B, Ortiz A, Díez J. Selective glomerular hypofiltration syndrome. Nephrol Dial Transplant 2023; 39:10-17. [PMID: 37407284 DOI: 10.1093/ndt/gfad145] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Indexed: 07/07/2023] Open
Abstract
The estimated glomerular filtration rate (eGFR) provides insight into cardiovascular disease (CVD) risk stratification and proactive management. Accumulating evidence suggests that combining eGFR calculated from serum cystatin C (eGFRcys) and from serum creatinine (eGFRcrea) improves CVD risk stratification over eGFRcrea alone. The term selective glomerular hypofiltration syndrome (SGHS) or shrunken pore syndrome has been proposed to define an eGFRcys:eGFRcrea ratio <1, which is hypothesized to result from a reduced glomerular filtration of 5- to 30-kDa molecules as compared with smaller molecules. SGHS may be identified in people with normal or reduced measured GFR, but the prevalence depends on the cut-off value of the eGFRcys:eGFRcrea ratio used, which is not yet standardized. SGHS is strongly associated with increased CVD and mortality risks and it may offer an opportunity to expand our understanding of the mechanisms linking GFR disorders with CVD risk (e.g. an altered plasma proteome), which may guide treatment decisions. However, muscle wasting may also contribute to a reduced eGFRcys:eGFRcrea ratio and there are open questions regarding the pathophysiology of a reduced eGFRcys:eGFRcrea ratio, the reference cut-off values of the ratio to define the syndrome and its clinical implications. We now critically review the SGHS concept, its pathophysiological basis and links to CVD and the potential consequences for clinical practice and propose a research agenda.
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Affiliation(s)
- Borja Quiroga
- IIS-La Princesa, Nephrology Department, Hospital Universitario de la Princesa, Madrid, Spain
| | - Alberto Ortiz
- Division of Nephrology IIS-Fundacion Jimenez Diaz, Department of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
- RICORS2040, Carlos III Institute of Health, Madrid, Spain
| | - Javier Díez
- Center of Applied Medical Research and School of Medicine, University of Navarra, Pamplona, Spain
- Centro de Investigación Biomédica en Red de la Enfermedades Cardiovasculares, Carlos III Institute of Health, Madrid, Spain
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Dieden A, Gudmundsson P, Korduner J, Molvin J, Zaghi A, Nezami Z, Bachus E, Holm H, Jujic A, Magnusson M. Galectin-4 is associated with diabetes and obesity in a heart failure population. Sci Rep 2023; 13:20285. [PMID: 37985679 PMCID: PMC10662206 DOI: 10.1038/s41598-023-47426-9] [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: 07/13/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023] Open
Abstract
An association between high Galectin-4 (Gal-4) and prevalence of diabetes in subjects with heart failure (HF) has previously been reported. The purpose of this study was to confirm these findings, as well as to further investigate this association, in a Swedish HF population. In addition, a second aim was to explore Gal-4's association with obesity and biomarkers of metabolism and heart failure. Gal-4 was measured using a proximity extension array technique in 324 hospitalized HF patients within the Swedish HeArt and bRain failure investigation trial cohort. Obesity was defined as BMI ≥ 30. Multivariable logistic regression models were used to explore associations between Gal-4 and diabetes/obesity, and linear regression models were used to explore the associations between Gal-4 and biomarkers. A total of 309 participants (29.1% female; mean age 74.8 years) provided complete data for the analysis of associations between Gal-4 and diabetes. Additionally, for the analysis of heart failure phenotype, complete data was available for 230 subjects. Gal-4 was positively associated with prevalent diabetes (OR 2.60; CI 95% 1.56-4.32). In multivariable models, Gal-4 levels were significantly associated with obesity, but only for subjects with diabetes (OR 2.48; 1.09-5.62). Additionally, Gal-4 demonstrated a significant association with the incretin Glucose-dependent insulinotropic polypeptide (GIP), as well as with biomarkers of HF. In the stratified analyses, the association between Gal-4 and diabetes was prominent in patients with reduced ejection fraction (n = 160, OR 3.26; 95%CI 1.88-5.66), while it was not observed in those without (n = 70, 1.96 (0.75-5.10)). In this cross-sectional, observational study, higher Gal-4 levels in HF patients were associated with higher GIP levels. Further, increased levels of Gal-4 were associated with increased likelihood of diabetes, and obesity. This association was particularly pronounced in individuals with HF characterized by reduced ejection fraction. Additionally, Gal-4 levels were significantly elevated in heart failure patients with diabetes and obesity.
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Affiliation(s)
- Anna Dieden
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.
- Department of Biomedical Science, Malmö University, Malmö, Sweden.
- Biofilms- Reseach Centre for Biointerfaces, Malmö University, Malmö, Sweden.
| | - Petri Gudmundsson
- Department of Biomedical Science, Malmö University, Malmö, Sweden
- Biofilms- Reseach Centre for Biointerfaces, Malmö University, Malmö, Sweden
| | - Johan Korduner
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - John Molvin
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Amir Zaghi
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Zainu Nezami
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Erasmus Bachus
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
- Late-Stage Development, Cardiovascular, Renal, and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Hannes Holm
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Amra Jujic
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Martin Magnusson
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
- Department of Cardiology, Skåne University Hospital, Malmö, Sweden
- Hypertension in Africa Research Team (HART), North West University, Potchefstroom, South Africa
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
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Carrero JJ, Fu EL, Sang Y, Ballew S, Evans M, Elinder CG, Barany P, Inker LA, Levey AS, Coresh J, Grams ME. Discordances Between Creatinine- and Cystatin C-Based Estimated GFR and Adverse Clinical Outcomes in Routine Clinical Practice. Am J Kidney Dis 2023; 82:534-542. [PMID: 37354936 DOI: 10.1053/j.ajkd.2023.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 04/11/2023] [Indexed: 06/26/2023]
Abstract
RATIONALE & OBJECTIVE Cystatin C is recommended for measuring estimated glomerular filtration rate (eGFR) when estimates based on creatinine (eGFRcr) are not thought to be accurate enough for clinical decision making. While global adoption is slow, routine cystatin C testing in Sweden has been available for over a decade, providing real-world evidence about the magnitude of differences between eGFRcys and eGFRcr and their association with clinical outcomes. STUDY DESIGN Observational study. SETTING & PARTICIPANTS 158,601 adults (48% women; mean age 62 years, eGFRcr 80, and eGFRcys 73mL/min/1.73/m2) undergoing testing for creatinine and cystatin C on the same day in connection with a health care encounter during 2010-2018 in Stockholm, Sweden. EXPOSURE Percentage difference of eGFRcys minus eGFRcr (eGFRdiff). OUTCOME Kidney failure with replacement therapy (KFRT), acute kidney injury (AKI), atherosclerotic cardiovascular disease (ASCVD), heart failure, and death. ANALYTICAL APPROACH Multivariable Cox proportional hazards regression. RESULTS Discordances between eGFRcr and eGFRcys were common, with eGFRcys being lower than eGFRcr (negative eGFRdiff) in most cases (65%). Patients with larger negative eGFRdiff were older, more often female, with higher eGFRcr and albuminuria, and more comorbid conditions. Compared with patients with similar eGFRcys and eGFRcr, the lowest quartile (eGFRcys > 27% lower than eGFRcr) had the higher HR of all study outcomes: AKI, 2.6 (95% CI, 2.4-2.9); KFRT, 1.4 (95% CI, 1.2-1.6); ASCVD, 1.4 (95% CI, 1.3-1.5); heart failure, 2.0 (95% CI, 1.9-2.2); and all-cause death, 2.6 (95% CI, 2.5-2.7). Conversely, patients in the highest quartile (positive eGFRdiff) were at lower risk. LIMITATIONS Observational study, lack of information on indications for cystatin C testing. CONCLUSIONS Cystatin C testing in routine care shows that many patients have a lower eGFRcys than eGFRcr, and these patients have a higher risk of multiple adverse outcomes. PLAIN-LANGUAGE SUMMARY Clinicians require guidance when there are discrepancies between the estimated glomerular filtration rate based on creatinine (eGFRcr) and based on cystatin C (eGFRcys) in the same individual. Routine cystatin C testing in Sweden for over a decade permits exploration of how common and large these discrepancies are, and their associations with adverse clinical outcomes. In this observational study, we found that discordances between eGFRcys and eGFRcr are common, and 1 in 4 patients tested had an eGFRcys > 28% lower than their eGFRcr. We also show that an eGFRcys that is lower than the eGFRcr consistently identifies patients at higher risk of adverse outcomes, including cardiovascular events, kidney replacement therapy, acute kidney injury, and death.
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Affiliation(s)
- Juan-Jesús Carrero
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Division of Nephrology, Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden.
| | - Edouard L Fu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Yingying Sang
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Shoshana Ballew
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Marie Evans
- Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Carl-Gustaf Elinder
- Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Peter Barany
- Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Lesley A Inker
- Division of Nephrology, Tufts Medical Center, Boston, Massachusetts
| | - Andrew S Levey
- Division of Nephrology, Tufts Medical Center, Boston, Massachusetts
| | - Josef Coresh
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Morgan E Grams
- Department of Medicine, Grossman School of Medicine, New York University, New York, New York
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Wang Y, Adingwupu OM, Shlipak MG, Doria A, Estrella MM, Froissart M, Gudnason V, Grubb A, Kalil R, Mauer M, Rossing P, Seegmiller J, Coresh J, Levey AS, Inker LA. Discordance Between Creatinine-Based and Cystatin C-Based Estimated GFR: Interpretation According to Performance Compared to Measured GFR. Kidney Med 2023; 5:100710. [PMID: 37753251 PMCID: PMC10518599 DOI: 10.1016/j.xkme.2023.100710] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
Rationale & Objective Use of cystatin C in addition to creatinine to estimate glomerular filtration rate (estimated glomerular filtration rate based on cystatin C [eGFRcys] and estimated glomerular filtration rate based on creatinine [eGFRcr], respectively) is increasing. When eGFRcr and eGFRcys are discordant, it is not known which is more accurate, leading to uncertainty in clinical decision making. Study Design Cross-sectional analysis. Setting & Participants Four thousand fifty participants with measured glomerular filtration rate (mGFR) from 12 studies in North America and Europe. Exposures Serum creatinine and serum cystatin C. Outcomes Performance of creatinine-based and cystatin C-based glomerular filtration rate estimating equations compared to mGFR. Analytical Approach We evaluated the accuracy of eGFRcr, eGFRcys, and the combination (eGFRcr-cys) compared to mGFR according to the magnitude of the difference between eGFRcr and eGFRcys (eGFRdiff). We used CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) equations to estimate glomerular filtration rate. eGFRdiff was defined as eGFRcys minus eGFRcr and categorized as less than -15, -15 to <15, and ≥15 mL/min/1.73 m2 (negative, concordant, and positive groups, respectively). We compared bias (median of mGFR minus eGFR) and the percentage of eGFR within 30% of mGFR. Results Thirty percent of participants had discordant eGFRdiff (21.0% and 9.6% negative and positive eGFRdiffs, respectively). In the concordant eGFRdiff group, all equations displayed similar accuracy. In the negative eGFRdiff groups, eGFRcr had a large overestimation of mGFR (-13.4 [-14.5 to -12.2] mL/min/1.73 m2) and eGFRcys had a large underestimation (9.9 [9.1-11.2] mL/min/1.73m2), with opposite results in the positive eGFRdiff group. In both negative and positive eGFRdiff groups, eGFRcr-cys was more accurate than either eGFRcr or eGFRcys. These results were largely consistent across age, sex, race, and body mass index. Limitations Few participants with major comorbid conditions. Conclusions Discordant eGFRcr and eGFRcys are common. eGFR using the combination of creatinine and cystatin C provides the most accurate estimates among persons with discordant eGFRcr or eGFRcys.
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Affiliation(s)
- Yeli Wang
- Department of Nutrition, Harvard University T.H. Chan School of Public Health, Boston, MA
| | | | - Michael G. Shlipak
- Kidney Health Research Collaborative, San Francisco Veterans Affair Medical Center and University of California, San Francisco, CA
| | - Alessandro Doria
- Section on Genetics & Epidemiology, Joslin Diabetes Center, and the Department of Medicine, Harvard Medical School, Boston, MA
| | - Michelle M. Estrella
- Division of Nephrology, Department of Medicine, San Francisco VA Health Care System and University of California, San Francisco, CA
| | - Marc Froissart
- Clinical Trial Unit, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Vilmundur Gudnason
- Faculty of Medicine, University of Iceland, Reykjavik, and the Icelandic Heart Association, Kopavogur, Iceland
| | - Anders Grubb
- Department of Clinical Chemistry and Pharmacology, Institute of Laboratory Medicine, Lund University, Sweden
| | - Roberto Kalil
- Division of Nephrology, Department of Medicine, University of Maryland School of Medicine, Baltimore MD
| | - Michael Mauer
- Divisions of Pediatric and Adult Nephrology, University of Minnesota, Minneapolis, MN
| | - Peter Rossing
- Steno Diabetes Center Copenhagen and the Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jesse Seegmiller
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN
| | - Josef Coresh
- Department of Epidemiology, John Hopkins Bloomberg School of Public Health, Baltimore, MD
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9
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Quiroga B, Díez J. Estimation of glomerular filtration rate in cardiorenal patients: a step forward. Clin Kidney J 2023; 16:1049-1055. [PMID: 37398687 PMCID: PMC10310511 DOI: 10.1093/ckj/sfad083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Indexed: 07/04/2023] Open
Abstract
The progressive reduction in estimated glomerular filtration rate (eGFR) resulting in chronic kidney disease (CKD) is associated with increased risk of cardiovascular disease (CVD) (i.e., cardiorenal disease). Cardiorenal disease is associated with poor outcomes, mainly due to increased cardiovascular (CV) complications and CV death. Data from general population-based studies and studies of cohorts with CKD and/or CVD show that compared with creatinine-based eGFR, cystatin C-based eGFR and creatinine plus cystatin C-based eGFR detect higher risks of adverse CV outcomes and add predictive discrimination to current CVD risk scores. On the other hand, growing clinical evidence supports kidney and CV protective effects of sodium-glucose cotransporter-2 (SGLT2) inhibitors in cardiorenal patients. However, recent data suggest that some detrimental effects of SGLT2 inhibitors on skeletal muscle mass may lead to overestimation of creatinine-based eGFR and subsequent misinterpretation of associated CV risk in patients treated with these agents. Within this framework, we suggest the advisability of using cystatin C and/or creatinine plus cystatin C-based eGFR for routine clinical practice in cardiorenal patients to more accurately stratify CV risk and evaluate the kidney and CV protective effects of SGLT2 inhibitors. In this regard, we make a call to action to investigate the protective effects of these pharmacological agents using cystatin C-based eGFR.
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Affiliation(s)
| | - Javier Díez
- Working Group on Cardiorenal Medicine (CaReSEN), Sociedad Española de Nefrología, Madrid, Spain
- Center of Applied Medical Research and School of Medicine, University of Navarra, Pamplona, Spain
- Centro de Investigación Biomédica en Red de la Enfermedades Cardiovasculares (CIBERCV), Carlos III Institute of Health, Madrid, Spain
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10
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Malmgren L, Öberg C, den Bakker E, Leion F, Siódmiak J, Åkesson A, Lindström V, Herou E, Dardashti A, Xhakollari L, Grubb G, Strevens H, Abrahamson M, Helmersson-Karlqvist J, Magnusson M, Björk J, Nyman U, Ärnlöv J, Ridefelt P, Åkerfeldt T, Hansson M, Sjöström A, Mårtensson J, Itoh Y, Grubb D, Tenstad O, Hansson LO, Olafsson I, Campos AJ, Risch M, Risch L, Larsson A, Nordin G, Pottel H, Christensson A, Bjursten H, Bökenkamp A, Grubb A. The complexity of kidney disease and diagnosing it - cystatin C, selective glomerular hypofiltration syndromes and proteome regulation. J Intern Med 2023; 293:293-308. [PMID: 36385445 PMCID: PMC10107454 DOI: 10.1111/joim.13589] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Estimation of kidney function is often part of daily clinical practice, mostly done by using the endogenous glomerular filtration rate (GFR)-markers creatinine or cystatin C. A recommendation to use both markers in parallel in 2010 has resulted in new knowledge concerning the pathophysiology of kidney disorders by the identification of a new set of kidney disorders, selective glomerular hypofiltration syndromes. These syndromes, connected to strong increases in mortality and morbidity, are characterized by a selective reduction in the glomerular filtration of 5-30 kDa molecules, such as cystatin C, compared to the filtration of small molecules <1 kDa dominating the glomerular filtrate, for example water, urea and creatinine. At least two types of such disorders, shrunken or elongated pore syndrome, are possible according to the pore model for glomerular filtration. Selective glomerular hypofiltration syndromes are prevalent in investigated populations, and patients with these syndromes often display normal measured GFR or creatinine-based GFR-estimates. The syndromes are characterized by proteomic changes promoting the development of atherosclerosis, indicating antibodies and specific receptor-blocking substances as possible new treatment modalities. Presently, the KDIGO guidelines for diagnosing kidney disorders do not recommend cystatin C as a general marker of kidney function and will therefore not allow the identification of a considerable number of patients with selective glomerular hypofiltration syndromes. Furthermore, as cystatin C is uninfluenced by muscle mass, diet or variations in tubular secretion and cystatin C-based GFR-estimation equations do not require controversial race or sex terms, it is obvious that cystatin C should be a part of future KDIGO guidelines.
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Affiliation(s)
- Linnea Malmgren
- Department of Clinical Sciences Malmö, Clinical and Molecular Osteoporosis Research Unit, Lund University, Malmö, Sweden.,Department of Geriatrics, Skåne University Hospital, Malmö, Sweden
| | - Carl Öberg
- Department of Clinical Sciences Lund, Division of Nephrology, Skåne University Hospital, Lund University, Lund, Sweden
| | - Emil den Bakker
- Department of Pediatrics, Amsterdam University Medical Centre, Amsterdam, The Netherlands
| | - Felicia Leion
- Department of Clinical Chemistry, Skåne University Hospital, Lund University, Lund, Sweden
| | - Joanna Siódmiak
- Department of Laboratory Medicine, Faculty of Pharmacy, Ludwik Rydygier Collegium Medicum (Nicolaus Copernicus University in Torun), Bydgoszcz, Poland
| | - Anna Åkesson
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden.,Clinical Studies Sweden, Forum South, Skåne University Hospital, Lund, Sweden
| | - Veronica Lindström
- Department of Clinical Chemistry, Skåne University Hospital, Lund University, Lund, Sweden
| | - Erik Herou
- Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
| | - Alain Dardashti
- Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
| | - Liana Xhakollari
- Department of Clinical Sciences, Lund University, Malmö, Sweden.,Department of Nephrology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Gabriel Grubb
- Department of Radiology, Skåne University Hospital, Lund, Sweden
| | - Helena Strevens
- Department of Clinical Sciences Lund, Department of Obstetrics and Gynaecology, Lund University, Lund, Sweden
| | - Magnus Abrahamson
- Department of Clinical Chemistry, Skåne University Hospital, Lund University, Lund, Sweden
| | | | - Martin Magnusson
- Department of Clinical Sciences, Lund University, Malmö, Sweden.,Department of Cardiology, Skåne University Hospital, Malmö, Sweden.,Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden.,Hypertension in Africa Research Team (HART), North West University, Potchefstroom, South Africa
| | - Jonas Björk
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden.,Clinical Studies Sweden, Forum South, Skåne University Hospital, Lund, Sweden
| | - Ulf Nyman
- Department of Translational Medicine, Division of Medical Radiology, University of Lund, Malmö, Sweden
| | - Johan Ärnlöv
- Department of Neurobiology, Care Sciences and Society (NVS), Family Medicine and Primary Care Unit, Karolinska Institute, Huddinge, Sweden.,School of Health and Social Studies, Dalarna University, Falun, Sweden
| | - Peter Ridefelt
- Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
| | - Torbjörn Åkerfeldt
- Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
| | - Magnus Hansson
- Department of Clinical Chemistry, Karolinska University Hospital, Huddinge, Sweden
| | - Anna Sjöström
- Department of Clinical Chemistry, Karolinska University Hospital, Huddinge, Sweden
| | - Johan Mårtensson
- Department of Physiology and Pharmacology, Section of Anaesthesia and Intensive Care, Karolinska Institute, Stockholm, Sweden
| | - Yoshihisa Itoh
- Clinical Laboratory, Eiju General Hospital, Life Extension Research Institute, Tokyo, Japan
| | - David Grubb
- Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
| | - Olav Tenstad
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Lars-Olov Hansson
- Department of Clinical Chemistry, Karolinska University Hospital, Huddinge, Sweden
| | - Isleifur Olafsson
- Department of Clinical Biochemistry, Landspitali - National University Hospital of Iceland, Reykjavik, Iceland
| | - Araceli Jarquin Campos
- Faculty of Medical Sciences, Private University in the Principality of Liechtenstein, Triesen, Liechtenstein
| | - Martin Risch
- Central Laboratory, Cantonal Hospital Graubünden, Chur, Switzerland
| | - Lorenz Risch
- Faculty of Medical Sciences, Private University in the Principality of Liechtenstein, Triesen, Liechtenstein.,University Institute of Clinical Chemistry, University Hospital and University of Bern, Inselspital, Bern, Switzerland
| | - Anders Larsson
- Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
| | | | - Hans Pottel
- Department of Public Health and Primary Care, Katholieke Universiteit Leuven Campus Kulak Kortrijk, Kortrijk, Belgium
| | - Anders Christensson
- Department of Nephrology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Henrik Bjursten
- Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
| | - Arend Bökenkamp
- Department of Pediatric Nephrology, Emma Children's Hospital, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Anders Grubb
- Department of Clinical Chemistry, Skåne University Hospital, Lund University, Lund, Sweden
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11
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Zhang L, Luo M, Xie X, You Z, Zeng J, Lin M, Chen L, Lin K, Guo Y. Shrunken Pore Syndrome: A New and More Powerful Phenotype of Renal Dysfunction Than Chronic Kidney Disease for Predicting Contrast-Associated Acute Kidney Injury. J Am Heart Assoc 2022; 12:e027980. [PMID: 36565177 PMCID: PMC9973563 DOI: 10.1161/jaha.122.027980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background Shrunken pore syndrome (SPS) as a novel phenotype of renal dysfunction is characterized by a difference in renal filtration between cystatin C and creatinine. The manifestation of SPS was defined as a cystatin C-based estimated glomerular filtration rate (eGFR) <60% of the creatinine-based eGFR. SPS has been shown to be associated with the progression and adverse prognosis of various cardiovascular and renal diseases. However, the predictive value of SPS for contrast-associated acute kidney injury (CA-AKI) and long-term outcomes in patients undergoing percutaneous coronary intervention remains unclear. Methods and Results We retrospectively observed 5050 consenting patients from January 2012 to December 2018. Serum cystatin C and creatinine were measured and applied to corresponding 2012 and 2021 Chronic Kidney Disease Epidemiology Collaboration equations, respectively, to calculate the eGFR. Chronic kidney disease (CKD) was defined as a creatinine-based eGFR <60 mL/min per 1.73 m2 without dialysis. CA-AKI was defined as an increase in serum creatinine ≥50% or 0.3 mg/dL within 48 hours after contrast medium exposure. Overall, 649 (12.85%) patients had SPS, and 324 (6.42%) patients developed CA-AKI. Multivariate logistic regression analysis indicated that SPS was significantly associated with CA-AKI after adjusting for potential confounding factors (odds ratio [OR], 4.17 [95% CI, 3.17-5.46]; P<0.001). Receiver operating characteristic analysis indicated that the cystatin C-based eGFR:creatinine-based eGFR ratio had a better performance and stronger predictive power for CA-AKI than creatinine-based eGFR (area under the curve: 0.707 versus 0.562; P<0.001). Multivariate logistic analysis revealed that compared with those without CKD and SPS simultaneously, patients with CKD and non-SPS (OR, 1.70 [95% CI, 1.11-2.55]; P=0.012), non-CKD and SPS (OR, 4.02 [95% CI, 2.98-5.39]; P<0.001), and CKD and SPS (OR, 8.62 [95% CI, 4.67-15.7]; P<0.001) had an increased risk of CA-AKI. Patients with both SPS and CKD presented the highest risk of long-term mortality compared with those without both (hazard ratio, 2.30 [95% CI, 1.38-3.86]; P=0.002). Conclusions SPS is a new and more powerful phenotype of renal dysfunction for predicting CA-AKI than CKD and will bring new insights for an accurate clinical assessment of the risk of CA-AKI.
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Affiliation(s)
- Li‐Wei Zhang
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
| | - Man‐Qing Luo
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
| | - Xian‐Wei Xie
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
| | - Zhe‐Bin You
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
- Fujian Key Laboratory of Geriatrics, Department of Geriatric Medicine, Fujian Provincial Hospital, Fujian Provincial Center for GeriatricsFujian Medical UniversityFuzhouChina
| | - Ji‐Lang Zeng
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
| | - Mao‐Qing Lin
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
| | - Li‐Chuan Chen
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
| | - Kai‐Yang Lin
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
| | - Yan‐Song Guo
- Department of CardiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Center for GeriatricsFujian Provincial Clinical Research Center for Severe Acute Cardiovascular DiseasesFuzhouChina
- Fujian Heart Failure Center AllianceFuzhouChina
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12
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Larsson AO, Hultström M, Frithiof R, Lipcsey M, Eriksson MB. Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19. Int J Mol Sci 2022; 23:ijms232415687. [PMID: 36555328 PMCID: PMC9779236 DOI: 10.3390/ijms232415687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
A selective decrease in the renal filtration of larger molecules is attributed to the shrinkage of glomerular pores, a condition termed Shrunken Pore Syndrome (SPS). SPS is associated with poor long-term prognosis. We studied SPS as a risk marker in a cohort of patients with COVID-19 treated in an intensive care unit. SPS was defined as a ratio < 0.7 when the estimated glomerular filtration rate (eGFR), determined by cystatin C, calculated by the Cystatin C Caucasian-Asian-Pediatric-Adult equation (CAPA), was divided by the eGFR determined by creatinine, calculated by the revised Lund−Malmö creatinine equation (LMR). Clinical data were prospectively collected. In total, SPS was present in 86 (24%) of 352 patients with COVID-19 on ICU admission. Patients with SPS had a higher BMI, Simplified Physiology Score (SAPS3), and had diabetes and/or hypertension more frequently than patients without SPS. Ninety-nine patients in the total cohort were women, 50 of whom had SPS. In dexamethasone-naïve patients, C-reactive protein (CRP ), TNF-alpha, and interleukin-6 did not differ between SPS and non-SPS patients. Demographic factors (gender, BMI) and illness severity (SAPS3) were independent predictors of SPS. Age and dexamethasone treatment did not affect the frequency of SPS after adjustments for age, sex, BMI, and acute severity. SPS is frequent in severely ill COVID-19 patients. Female gender was associated with a higher proportion of SPS. Demographic factors and illness severity were independent predictors of SPS.
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Affiliation(s)
- Anders O. Larsson
- Department of Medical Sciences, Section of Clinical Chemistry, Uppsala University, 751 85 Uppsala, Sweden
| | - Michael Hultström
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, Sweden
- Department of Medical Cell Biology, Integrative Physiology, Uppsala University, 751 23 Uppsala, Sweden
- Department of Epidemiology, McGill University, Montréal, QC H3A 0G4, Canada
- Lady Davis Institute of Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada
| | - Robert Frithiof
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, Sweden
| | - Miklos Lipcsey
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, Sweden
- Hedenstierna Laboratory, Department of Surgical Sciences, Uppsala University, 751 85 Uppsala, Sweden
| | - Mats B. Eriksson
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, Sweden
- NOVA Medical School, New University of Lisbon, 1099-085 Lisbon, Portugal
- Correspondence: ; Tel.: +46-18-6110000
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13
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Shrunken Pore Syndrome Is Associated with Renal Function Decline in Female Patients with Kidney Diseases. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2177991. [PMID: 35845935 PMCID: PMC9283046 DOI: 10.1155/2022/2177991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/24/2022] [Indexed: 12/02/2022]
Abstract
Background Shrunken pore syndrome (SPS) represents selective impairment of kidney filtration of low-molecular-weight molecules between 1 and 30 kDa and has been related to outcomes including morbidity, mortality, and cardiovascular events. However, the prevalence and kidney outcomes of SPS have not been investigated in patients with IgA nephropathy (IgAN) and membranous nephropathy (MN). Methods We retrospectively collected information of 536 patients including 414 with IgAN and 122 with MN. SPS was mainly defined by cystatin C-based eGFR < 70% of creatinine-based eGFR using the CAPA-LM equation pairs, while CKD-EPI equations were also employed in sensitivity analyses. Prevalence rate of SPS and its association with end-stage renal disease (ESRD) or severe eGFR decline (≥50% eGFR reduction or doubling of baseline creatinine) were investigated. Results 44% (8%) patients were identified as possessing SPS using the CAPA-LM definition. ESRD happened in 24 patients during the average follow-up period of 27.7 months. Despite dramatic increase of incidence rate of ESRD for SPS, significant hazard ratio (HR) only existed in IgAN patients after multivariable adjustment (HR: 8.35, 95% CI: 2.10~33.26), but lost significance in sensitivity analyses. 36 patients were determined as having experienced severe eGFR decline after excluding transient creatinine fluctuation. SPS was associated with severe eGFR decline by Kaplan-Meier survival analyses in the overall population as well as the IgAN, MN, male, and female subpopulations, which remained significant in multivariable adjustments in all groups except IgAN. However, only in female patients the association between SPS and eGFR decline remained significant in all the sensitivity analyses. Conclusions SPS was independently associated with eGFR decline in female patients with IgAN and MN.
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