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Huang W, Zhu JY, Song CY, Lu YQ. Machine learning models for early prediction of potassium lowering effectiveness and adverse events in patients with hyperkalemia. Sci Rep 2024; 14:737. [PMID: 38184719 PMCID: PMC10771443 DOI: 10.1038/s41598-024-51468-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/05/2024] [Indexed: 01/08/2024] Open
Abstract
The aim of this study was to develop a model for early prediction of adverse events and treatment effectiveness in patients with hyperkalemia. We collected clinical data from patients with hyperkalemia in the First Hospital of Zhejiang University School of Medicine between 2015 and 2021. The least absolute shrinkage and selection operator (LASSO) and multivariate logistic regression were used to analyze the predictors on the full dataset. We randomly divided the data into a training group and a validation group, and used LASSO to filter variables in the training set. Six machine learning methods were used to develop the models. The best model was selected based on the area under the curve (AUC). Shapley additive exPlanations (SHAP) values were used to explain the best model. A total of 1074 patients with hyperkalemia were finally enrolled. Diastolic blood pressure (DBP), breathing, oxygen saturation (SPO2), Glasgow coma score (GCS), liver disease, oliguria, blood sodium, international standardized ratio (ISR), and initial blood potassium were the predictors of the occurrence of adverse events; peripheral edema, estimated glomerular filtration rate (eGFR), blood sodium, actual base residual, and initial blood potassium were the predictors of therapeutic effect. Extreme gradient boosting (XGBoost) model achieved the best performance (adverse events: AUC = 0.87; therapeutic effect: AUC = 0.75). A model based on clinical characteristics was developed and validated with good performance.
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Affiliation(s)
- Wei Huang
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Jian-Yong Zhu
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Cong-Ying Song
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Yuan-Qiang Lu
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, People's Republic of China.
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China.
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2
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Rossignol P, Moulin B, Halimi JM, Bataille P, Juillard L, Thervet É, Choukroun G. État des lieux sur l’hyperkaliémie chronique persistante en France : consensus d’experts par une approche Delphi. Nephrol Ther 2022; 18:278-286. [DOI: 10.1016/j.nephro.2021.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 08/08/2021] [Accepted: 10/20/2021] [Indexed: 11/25/2022]
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3
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Rossignol P, Silva-Cardoso J, Kosiborod MN, Brandenburg, Cleland JG, Hadimeri H, Hullin R, Makela S, Mörtl D, Paoletti E, Pollock C, Vogt L, Jadoul M, Butler J. Pragmatic Diagnostic and Therapeutic Algorithms to Optimize New Potassium Binder use in Cardiorenal Disease. Pharmacol Res 2022; 182:106277. [PMID: 35662631 DOI: 10.1016/j.phrs.2022.106277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/16/2022] [Accepted: 05/22/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Pivotal randomized trials demonstrating efficacy, safety and good tolerance, of two new potassium binders (patiromer and sodium zirconium cyclosilicate) led to their recent approval. A major hurdle to the implementation of these potassium-binders is understanding how to integrate them safely and effectively into the long-term management of cardiovascular and kidney disease patients using renin angiotensin aldosterone system inhibitors (RAASi), the latter being prone to induce hyperkalaemia. METHODS a multidisciplinary academic panel including nephrologists and cardiologists was convened to develop consensus therapeutic algorithm(s) aimed at optimizing the use of the two novel potassium binders (patiromer and sodium zirconium cyclosilicate) in stable adults who require treatment with RAASi and experience(d) hyperkalaemia in a non-emergent setting. RESULTS Two dedicated pragmatic algorithms are proposed. The lowest intervention threshold (i.e. 5.1mmol/L or greater) was the one used in the patiromer and sodium zirconium cyclosilicate) pivotal trials, both drugs being indicated to treat hyperkalaemia in a non -emergent setting. Acknowledging the heterogeneity across specialty guidelines in hyperkalaemia definition and thresholds to intervene when facing hyperkalaemia, we have been mindful to use soft language i.e. "it is to consider", not necessarily "to do". CONCLUSIONS Providing the clinical community with pragmatic algorithms may help optimize the management of high-risk patients by avoiding the risks of both hyper and hypokalaemia and of suboptimal RAASi therapy.
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Affiliation(s)
- P Rossignol
- Université de Lorraine, INSERM CIC Plurithématique 1433, Nancy CHRU, Inserm U1116, FCRIN INI-CRCT, Nancy, France.
| | - J Silva-Cardoso
- Heart Failure and Transplant Clinic, Cardiology Service, São João University Hospital Centre, Faculty of Medicine, University of Porto, CINTESIS - Centre for Health Technology and Services Research, Porto, Portugal
| | - M N Kosiborod
- Saint Luke's Mid America Heart Institute and University of Missouri-Kansas City, Kansas City, Missouri; The George Institute for Global Health, and University of New South Wales, Sydney, New South Wales, Australia
| | - Brandenburg
- Department of Cardiology and Nephrology, Rhein-Maas Klinikum, Würselen, Germany
| | - J G Cleland
- Robertson Centre for Biostatistics & Clinical Trials, University of Glasgow & National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - H Hadimeri
- Department of Nephrology, Skaraborgs sjukhus, Skövde, Sweden
| | - R Hullin
- Service de Cardiologie, Département Coeur-Vaisseaux, Centre Hospitalier Universitaire Vaudois, Université de Lausanne, Lausanne, Suisse
| | - S Makela
- Department of Internal Medicine, Kidney Unit, Tampere University Hospital, Tampere, Finland
| | - D Mörtl
- Department of Internal Medicine 3, University Hospital St. Pölten, St. Pölten, Austria
| | - E Paoletti
- Nephrology, Dialysis, and Transplantation, Policlinico San Martino, Genova, Italy
| | - C Pollock
- Renal Research Laboratory, Kolling Institute of Medical Research, University of Sydney, Sydney, Australia
| | - L Vogt
- Department of Internal Medicine, section Nephrology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - M Jadoul
- Division of Nephrology, Cliniques universitaires Saint-Luc, Brussels, Belgium;; Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - J Butler
- Department of Medicine, University of Mississippi, Jackson, Mississippi, USA
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Xie H, Lv S, Chen S, Pang Z, Ye D, Guo J, Xu W, Jin W. Agreement of Potassium, Sodium, Glucose, and Hemoglobin Measured by Blood Gas Analyzer With Dry Chemistry Analyzer and Complete Blood Count Analyzer: A Two-Center Retrospective Analysis. Front Med (Lausanne) 2022; 9:799642. [PMID: 35433733 PMCID: PMC9011334 DOI: 10.3389/fmed.2022.799642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundBlood gas analyzers (BGAs) and dry biochemistry analyzers for potassium and sodium are based on direct electrode methods, and both involve glucose oxidase for glucose detection. However, data are lacking regarding whether the results of the two assay systems can be used interchangeably. In addition, there remains controversy over the consistency between BGA-measured hemoglobin and complete blood count analyzer data. Here, we compared the consistency of sodium, potassium, glucose, and hemoglobin levels measured by BGA and dry chemistry and complete blood count analyzers.MethodsData from two teaching hospitals, the Zhejiang Provincial People's Hospital (ZRY) and the Qianfoshan Hospital (QY), were retrospectively analyzed based on dry biochemistry and complete blood count analyzer results as the reference system (X) and BGA as the experimental system (Y). Plasma was used for biochemical analysis at the ZRY Hospital, and serum at the QY Hospital. Paired data from the respective hospitals were evaluated for consistency, and biases between methods were assessed by simple correlation, Passing–Bablok regression, and Bland–Altman analyses.ResultsThe correlations of potassium, sodium, glucose, and hemoglobin measured by BGA and dry biochemistry and complete blood count analyzers were high, at 0.9573, 0.8898, 0.9849, and 0.9883 for the ZRY Hospital and 0.9198, 0.8591, 0.9764, and 0.8666, respectively, for the QY Hospital. The results of Passing to Bablok regression analysis showed that the predicted biases at each medical decision level were within clinically acceptable levels for potassium, sodium, glucose, and hemoglobin at the ZRY Hospital. Only the predicted bias of glucose was below the clinically acceptable medical decision levels at the QY Hospital, while potassium, sodium, and hemoglobin were not. Compared with the reference system, the mean bias for BGA measurements at the ZRY Hospital was −0.08 mmol/L (95% confidence interval [CI] −0.091 to −0.069) for potassium, 1.2 mmol/L (95% CI 1.06 to 1.42) for sodium, 0.20 mmol/L (95% CI 0.167 to 0.228) for glucose, and −2.8 g/L for hemoglobin (95% CI −3.14 to −2.49). The mean bias for potassium, sodium, glucose, and hemoglobin at the QY Hospital were −0.46 mmol/L (95% CI −0.475 to −0.452), 3.7 mmol/L (95% CI 3.57 to 3.85), −0.36 mmol/L (95% CI −0.433 to −0.291), and −8.7 g/L (95% CI −9.40 to −8.05), respectively.ConclusionBGA can be used interchangeably with plasma electrolyte results from dry biochemistry analyzers but does not show sufficient consistency with serum electrolyte results from dry biochemistry analyzers to allow data interchangeability. Good consistency was observed between BGA and plasma or serum glucose results from dry biochemistry analyzers. However, BGA-measured hemoglobin and hematocrit assay results should be treated with caution.
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Affiliation(s)
- Hongxiang Xie
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, China
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan, China
| | - Shiyu Lv
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan, China
| | - Sufeng Chen
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, China
| | - Zhenzhen Pang
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, China
| | - Deli Ye
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, China
| | - Jianzhuang Guo
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan, China
| | - Wanju Xu
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan, China
- Wanju Xu
| | - Weidong Jin
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, China
- *Correspondence: Weidong Jin
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Borghi C, Ferri C, Pontremoli R, Sechi L, Grassi G. Possible Advantages Deriving from Patiromer Use in Hypertensive Patients Made Hyperkalemic by Renin-Angiotensin-Aldosterone Blocking Agents. High Blood Press Cardiovasc Prev 2021; 28:555-559. [PMID: 34709583 DOI: 10.1007/s40292-021-00478-2] [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: 09/25/2021] [Accepted: 10/08/2021] [Indexed: 12/28/2022] Open
Abstract
Hyperkalemia is an elevated level of serum potassium (K+) and does represent a life-threatening condition. In clinical practice, hyperkalemia mainly derives from an impaired renal K+ excretion which, in turn, is usually caused by either acute or chronic renal failure. In concordance with this, hyperkalemia is very common in several chronic conditions, such as kidney disease, diabetes mellitus, heart failure, hypertension, and coronary heart disease. In all of these conditions the use of Renin-Angiotensin-Aldosterone System inhibitors (RAASIs), such as angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs), and mineralocorticoid receptor antagonist is widely recommended and further increases the risk of hyperkalemia. As hypertension is concerned, clinical trials suggest that the risk of hyperkalemia associated with RAASIs ranges from 2 to 10%. This often leads to a reduction or complete cessation of RAASIs, leaving patients without protective medications. Patiromer, a new oral potassium-binding agent, has been approved for clinical use in several countries, including Europe and US. Clinical studies have demonstrated that patiromer is effective in inducing a rapid and sustained K+ reduction in various patient settings, including those where RAASIs are a fundamental component of cardiorenal protection. Patiromer is generally well tolerated and characterised by a good safety profile. Most importantly, patiromer use might allow the continuation of ACEIs and ARBs in hypertensive patients developing hyperkalemia during treatment and thereby favour a more effective and long-lasting cardiorenal protection.
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Affiliation(s)
- Claudio Borghi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Claudio Ferri
- Department of Clinical Medicine, Public Health, Life and Environmental Sciences, University of L'Aquila, Internal Medicine and Nephrology Unit, San Salvatore Hospital, 67100, L'Aquila, Italy.
| | - Roberto Pontremoli
- Department of Internal Medicine, University and IRCCS San Martino Polyclinic Hospital, Genoa, Italy
| | - Leonardo Sechi
- Medical Clinic, Department of Medical Area, University of Udine University Hospital, Pavilion 8, Udine, Italy
| | - Guido Grassi
- Clinica Medica, Department of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
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Valdivielso JM, Balafa O, Ekart R, Ferro CJ, Mallamaci F, Mark PB, Rossignol P, Sarafidis P, Del Vecchio L, Ortiz A. Hyperkalemia in Chronic Kidney Disease in the New Era of Kidney Protection Therapies. Drugs 2021; 81:1467-1489. [PMID: 34313978 DOI: 10.1007/s40265-021-01555-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2021] [Indexed: 12/20/2022]
Abstract
Despite recent therapeutic advances, chronic kidney disease (CKD) is one of the fastest growing global causes of death. This illustrates limitations of current therapeutic approaches and, potentially, unidentified knowledge gaps. For decades, renin-angiotensin-aldosterone system (RAAS) blockers have been the mainstay of therapy for CKD. However, they favor the development of hyperkalemia, which is already common in CKD patients due to the CKD-associated decrease in urinary potassium (K+) excretion and metabolic acidosis. Hyperkalemia may itself be life-threatening as it may trigger potentially lethal arrhythmia, and additionally may limit the prescription of RAAS blockers and lead to low-K+ diets associated to low dietary fiber intake. Indeed, hyperkalemia is associated with adverse kidney, cardiovascular, and survival outcomes. Recently, novel kidney protective therapies, ranging from sodium/glucose cotransporter 2 (SGLT2) inhibitors to new mineralocorticoid receptor antagonists have shown efficacy in clinical trials. Herein, we review K+ pathophysiology and the clinical impact and management of hyperkalemia considering these developments and the availability of the novel K+ binders patiromer and sodium zirconium cyclosilicate, recent results from clinical trials targeting metabolic acidosis (sodium bicarbonate, veverimer), and an increasing understanding of the role of the gut microbiota in health and disease.
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Affiliation(s)
- José M Valdivielso
- Vascular and Renal Translational Research Group, UDETMA, REDinREN del ISCIII, IRBLleida, Lleida, Spain.
| | - Olga Balafa
- Department of Nephrology, University Hospital of Ioannina, Ioannina, Greece
| | - Robert Ekart
- Clinic for Internal Medicine, Department of Dialysis, University Medical Center Maribor, Maribor, Slovenia
| | - Charles J Ferro
- Department of Renal Medicine, University Hospitals Birmingham, Edgbaston, Birmingham, UK
| | - Francesca Mallamaci
- CNR-IFC, Clinical Epidemiology and Pathophysiology of Hypertension and Renal Diseases, Ospedali Riuniti, 89124, Reggio Calabria, Italy
| | - Patrick B Mark
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Patrick Rossignol
- Inserm 1433 CIC-P CHRU de Nancy, Inserm U1116 and FCRIN INI-CRCT, Université de Lorraine, Nancy, France
| | - Pantelis Sarafidis
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloníki, Greece
| | - Lucia Del Vecchio
- Department of Nephrology and Dialysis, Sant'Anna Hospital, ASST Lariana, Como, Italy
| | - Alberto Ortiz
- School of Medicine, IIS-Fundacion Jimenez Diaz, University Autonoma of Madrid, FRIAT and REDINREN, Madrid, Spain
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Krogager ML, Søgaard P, Torp-Pedersen C, Bøggild H, Gislason G, Kragholm K. Impact of Plasma Potassium Normalization on Short-Term Mortality in Patients With Hypertension and Hyperkalemia. J Am Heart Assoc 2020; 9:e017087. [PMID: 33317370 PMCID: PMC7955366 DOI: 10.1161/jaha.120.017087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Hyperkalemia can be harmful, but the effect of correcting hyperkalemia is sparsely studied. We used nationwide data to examine hyperkalemia follow-up in patients with hypertension. Methods and Results We identified 7620 patients with hypertension, who had the first plasma potassium measurement ≥4.7 mmol/L (hyperkalemia) within 100 days of combination antihypertensive therapy initiation. A second potassium was measured 6 to 100 days after the episode of hyperkalemia. All-cause mortality within 90 days of the second potassium measurement was assessed using Cox regression. Mortality was examined for 8 predefined potassium intervals derived from the second measurement: 2.2 to 2.9 mmol/L (n=37), 3.0 to 3.4 mmol/L (n=184), 3.5 to 3.7 mmol/L (n=325), 3.8 to 4.0 mmol/L (n=791), 4.1 to 4.6 mmol/L (n=3533, reference), 4.7 to 5.0 mmol/L (n=1786), 5.1 to 5.5 mmol/L (n=720), and 5.6 to 7.8 mmol/L (n=244). Ninety-day mortality in the 8 strata was 37.8%, 21.2%, 14.5%, 9.6%, 6.3%, 6.2%, 10.0%, and 16.4%, respectively. The multivariable analysis showed that patients with concentrations >5.5 mmol/L after an episode of hyperkalemia had increased mortality risk compared with the reference (hazard ratio [HR], 2.27; 95% CI, 1.60-3.20; P<0.001). Potassium intervals 3.5 to 3.7 mmol/L and 3.8 to 4.0 mmol/L were also associated with increased risk of death (HR, 1.71; 95% CI, 1.23-2.37; P<0.001; HR, 1.36; 95% CI, 1.04-1.76; P<0.001, respectively) compared with the reference group. We observed a trend toward increased risk of death within the interval 5.1 to 5.5 mmol/L (HR, 1.29; 95% CI, 0.98-1.69). Potassium concentrations <4.1 mmol/L and >5.0 mmol/L were associated with increased risk of cardiovascular death. Conclusions Overcorrection of hyperkalemia to levels <4.1 mmol/L was frequent and associated with increased all-cause and cardiovascular mortality. Potassium concentrations >5.5 mmol/L were also associated with an increased all-cause and cardiovascular mortality.
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Affiliation(s)
| | - Peter Søgaard
- Department of Cardiology Aalborg University Hospital Aalborg Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology and Clinical Research Nordsjællands Hospital Hillerød Denmark.,Department of Cardiology Herlev and Gentofte University Hospital Hellerup Denmark
| | - Henrik Bøggild
- Public Health and Epidemiology Group Department of Health Science and Technology Aalborg University Aalborg Denmark.,Unit of Epidemiology and Biostatistics Aalborg University Hospital Aalborg Denmark
| | - Gunnar Gislason
- Department of Cardiology Herlev and Gentofte University Hospital Hellerup Denmark.,The Danish Heart Foundation Copenhagen Denmark.,The National Institute of Public Health University of Southern Denmark Odense Denmark
| | - Kristian Kragholm
- Department of Cardiology Aalborg University Hospital Aalborg Denmark.,Unit of Epidemiology and Biostatistics Aalborg University Hospital Aalborg Denmark.,Department of Cardiology Regionshospital Nordjylland Hjørring Denmark
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