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Huang S, Guo N, Duan X, Zhou Q, Zhang Z, Luo L, Ge L. Association between the blood urea nitrogen to creatinine ratio and in‑hospital mortality among patients with acute myocardial infarction: A retrospective cohort study. Exp Ther Med 2022; 25:36. [PMID: 36569431 PMCID: PMC9764047 DOI: 10.3892/etm.2022.11735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 10/21/2022] [Indexed: 11/30/2022] Open
Abstract
The present study aimed to determine the association between the blood urea nitrogen (BUN) and creatinine (Cr) ratio and in-hospital mortality in patients with acute myocardial infarction (AMI). The present retrospective cohort study included adult patients (≥18 years of age) who were admitted to the intensive care unit (ICU) with a primary diagnosis of AMI. Medical records were obtained from the electronic ICU collaborative research database, which includes data from throughout continental USA. Data included demographic characteristics, vital signs, laboratory tests and comorbidities. The clinical endpoint was in-hospital mortality. The Cox proportional hazards model was used to evaluate the prognostic values of the basic BUN/Cr ratio and the Kaplan-Meier method was used to plot survival curves. Subgroup analyses were performed to measure mortality across various subgroups. In total, 5,965 eligible patients were included. In the Cox regression analysis, after being adjusted for age, sex, ethnicity and other confounding factors, the BUN/Cr ratio was found to be a significant risk predictor of in-hospital mortality. There was a non-linear relationship between the BUN/Cr ratio and in-hospital mortality after adjusting for potential confounders. A two-piecewise regression model was used to obtain a threshold inflection point value of 18. Furthermore, after adjusting for additional confounding factors (age, sex, ethnicity, BMI, heart rate, oxygen saturation, platelets, total protein, AMI category, heart failure, history of diabetes, history of hypertension, percutaneous coronary intervention, and administration of norepinephrine, dopamine and epinephrine), the BUN/Cr ratio remained a significant predictor of in-hospital mortality (third vs. first tertile: Hazard ratio, 1.50; 95% CI, 1.08-2.09; P<0.05). The Kaplan-Meier curve for tertiles of the BUN/Cr ratio indicated that in-hospital mortality rates were highest when the BUN/Cr ratio was ≥18.34 after adjustment for age, sex and ethnicity (P<0.05). The present findings demonstrated that a higher BUN/Cr ratio was associated with an increased risk of in-hospital mortality in patients with non-ST-segment elevation myocardial infarction. These results support a revision of how the prognosis of patients with AMI is predicted.
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Affiliation(s)
- Sulan Huang
- Department of Cardiovascular Medicine, The First People's Hospital of Changde, Changde, Hunan 415000, P.R. China
| | - Ning Guo
- Department of Cardiovascular Medicine, The First People's Hospital of Changde, Changde, Hunan 415000, P.R. China
| | - Xiangjie Duan
- Department of Infectious Disease, The First People's Hospital of Changde, Changde, Hunan 415000, P.R. China
| | - Quan Zhou
- Department of Science and Education, The First People's Hospital of Changde, Changde, Hunan 415000, P.R. China
| | - Zhixiang Zhang
- Department of Cardiovascular Medicine, The First People's Hospital of Changde, Changde, Hunan 415000, P.R. China
| | - Li Luo
- Department of Cardiovascular Medicine, The First People's Hospital of Changde, Changde, Hunan 415000, P.R. China
| | - Liangqing Ge
- Department of Cardiovascular Medicine, The First People's Hospital of Changde, Changde, Hunan 415000, P.R. China,Correspondence to: Dr Liangqing Ge, Department of Cardiovascular Medicine, The First People's Hospital of Changde, 818 Renmin Road, Changde, Hunan 415000, P.R. China
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Lin M, Zhan J, Luan Y, Li D, Shan Y, Xu T, Fu G, Zhang W, Wang M. Development and Validation of a Risk Score in Chinese Patients With Chronic Heart Failure. Front Cardiovasc Med 2022; 9:865843. [PMID: 35647038 PMCID: PMC9130568 DOI: 10.3389/fcvm.2022.865843] [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: 01/30/2022] [Accepted: 04/13/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundAcute exacerbation of chronic heart failure contributes to substantial increases in major adverse cardiovascular events (MACE). The study developed a risk score to evaluate the severity of heart failure which was related to the risk of MACE.MethodsThis single-center retrospective observational study included 5,777 patients with heart failure. A credible random split-sample method was used to divide data into training and validation dataset (split ratio = 0.7:0.3). Least absolute shrinkage and selection operator (Lasso) logistic regression was applied to select predictors and develop the risk score to predict the severity category of heart failure. Receiver operating characteristic (ROC) curves, and calibration curves were used to assess the model’s discrimination and accuracy.ResultsBody-mass index (BMI), ejection fraction (EF), serum creatinine, hemoglobin, C-reactive protein (CRP), and neutrophil lymphocyte ratio (NLR) were identified as predictors and assembled into the risk score (P < 0.05), which showed good discrimination with AUC in the training dataset (0.770, 95% CI:0.746–0.794) and validation dataset (0.756, 95% CI:0.717–0.795) and was well calibrated in both datasets (all P > 0.05). As the severity of heart failure worsened according to risk score, the incidence of MACE, length of hospital stay, and treatment cost increased (P < 0.001).ConclusionA risk score incorporating BMI, EF, serum creatinine, hemoglobin, CRP, and NLR, was developed and validated. It effectively evaluated individuals’ severity classification of heart failure, closely related to MACE.
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Affiliation(s)
- Maoning Lin
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Jiachen Zhan
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
- Department of Cardiology, Zhuji People’s Hospital, Zhuji, China
| | - Yi Luan
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Duanbin Li
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Yu Shan
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Tian Xu
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Guosheng Fu
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
- *Correspondence: Guosheng Fu,
| | - Wenbin Zhang
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
- Wenbin Zhang,
| | - Min Wang
- Department of Cardiovascular Diseases, College of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
- Min Wang,
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Ok F, Erdogan O, Durmus E, Carkci S, Canik A. Predictive values of blood urea nitrogen/creatinine ratio and other routine blood parameters on disease severity and survival of COVID-19 patients. J Med Virol 2021; 93:786-793. [PMID: 32662893 PMCID: PMC7405288 DOI: 10.1002/jmv.26300] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/10/2020] [Indexed: 12/22/2022]
Abstract
We aimed to examine independent predictive factors for the severity and survival of COVID-19 disease, from routine blood parameters, especially the blood urea nitrogen (BUN)/creatinine (Cr) ratio. A total of 139 patients with COVID-19 were investigated at Siirt State Hospital. According to the disease severity, the patients were categorized as three groups (moderate: 85, severe: 54, and critical: 20). Then, patients were divided into two groups: nonsevere (moderate) and severe (severe and critical). Demographic, clinical data, and routine blood parameters were analyzed. In multivariate model adjusted for potential confounders BUN/Cr ratio (odds ratio [OR] = 1.70; 95% confidence interval [CI]: 1.20-2.40; P = .002) and neutrophil to lymphocyte ratio (NLR) (OR = 2.21; 95% CI: 1.20-4.30; P < .001) were independent predictive factors for disease severity. In multivariate Cox proportional hazard model BUN/Cr ratio (hazard ratio [HR] = 1.02; 95% CI: 1.01-1.05; P = .030), and NLR (HR = 1.17; 95% CI: 1.06-1.30; P = .020) were independent predictors for survival of COVID-19 disease. The optimal thresholds of the BUN/Cr ratio at 33.5 and 51.7 had the superior possibility for severe disease and mortality, area under the curve (AUC) were 0.98 and 0.95, respectively. The optimal thresholds of NLR at 3.27 and 5.72 had a superior possibility for severe disease and mortality, AUC were 0.87 and 0.85, respectively. BUN/Cr and NLR are independent predictors for COVID-19 patient severity and survival. Routine evaluation of BUN/Cr and NLR can help identify high-risk cases with COVID-19.
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Affiliation(s)
- Fesih Ok
- Department of UrologySiirt State HospitalSiirtTurkey
| | - Omer Erdogan
- Department of UrologySiirt State HospitalSiirtTurkey
| | | | - Serkan Carkci
- Department of UrologySiirt State HospitalSiirtTurkey
| | - Aggul Canik
- Department of BiochemistrySiirt State HospitalSiirtTurkey
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Laszczyńska O, Severo M, Mascarenhas J, Paiva JA, Azevedo A. Serum creatinine trajectories in real-world hospitalized patients: clinical context and short-term mortality. J Investig Med 2020; 68:870-881. [DOI: 10.1136/jim-2019-001185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2020] [Indexed: 12/27/2022]
Abstract
Fluctuations in serum creatinine (SCr) during hospitalization may provide additional prognostic value beyond baseline renal function. This study aimed to identify groups of patients with distinct creatinine trajectories over hospital stay and assess them in terms of clinical characteristics and short-term mortality. This retrospective study included 35 853 unique adult admissions to a tertiary referral center between January 2012 and January 2016 with at least three SCr measurements within the first 9 days of stay. Individual SCr courses were determined using linear regression or linear-splines model and grouped into clusters. SCr trajectories were described as median SCr courses within clusters. Almost half of the patients presented with changing, mainly declining SCr concentration during hospitalization. In comparison to patients with an increase in SCr, those with a significant decline were younger, more often admitted via the emergency department, more often required a higher level of care, had fewer comorbidities and the more pronounced the fall in SCr, the greater the observed difference. Regardless of baseline renal function, an increase in SCr was related to the highest in-hospital mortality risk among compared clusters. Also, patients with normal renal function at admission followed by decreasing SCr were at higher risk of inpatient death, but lower 90-day postdischarge mortality than patients with a stable SCr. Acute changes in inpatient SCr convey important prognostic information and can only be interpreted by looking at their evolution over time. Recognizing underlying causes and providing adequate care is crucial for improving adverse prognosis.
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Qian H, Tang C, Yan G. Predictive value of blood urea nitrogen/creatinine ratio in the long-term prognosis of patients with acute myocardial infarction complicated with acute heart failure. Medicine (Baltimore) 2019; 98:e14845. [PMID: 30882678 PMCID: PMC6426612 DOI: 10.1097/md.0000000000014845] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
At present, the long-term prognosis of patients with acute myocardial infarction (AMI) after emergency percutaneous coronary intervention is the focus of attention, and relevant research is actively investigating the risk factors associated with prognosis. Poor prognosis often exists in Patients with AMI complicated with acute heart failure (AHF). In recent years, some studies have found that blood urea nitrogen/creatinine ratio (BUN/Cr) can better predict the prognosis of patients with AHF than single BUN or Cr. The relationship between long-prognosis of patients with AMI, as one of the common causes of AHF, and BUN/Cr is unknown. The main purpose of this study was to determine whether BUN/Cr has a predictive value for long-term prognosis in patients with AMI complicated with AHF.In this study, 389 consecutive patients with AMI were enrolled. According to AHF and a median BUN/Cr at admission of 15.32, the patients were divided into four groups (non-AHF + low BUN/Cr, non-AHF + high BUN/Cr, AHF + low BUN/Cr, and AHF + high BUN/Cr groups). A 1-year follow-up was implemented, and the study endpoint was defined as all-cause mortality. Predictors associated with 1-year mortality were evaluated using the Cox proportional hazard analysis, and the Kaplan-Meier analysis was used to estimate the survival rates.AHF occurred in 163 patients (41.9%) during hospital admission and 29 patients died during the 1-year follow-up. The Cox proportional hazard analysis proved an association between the combination of AHF and high BUN/Cr and mortality; however, the association with AHF + low BUN/Cr was not statistically significant.AHF combined with elevated BUN/Cr is linked with an increased risk of mortality in patients with AMI, which suggests that BNU/Cr has a predictive value for prognosis in patients with AMI complicated with AHF.
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Affiliation(s)
- Hao Qian
- Southeast University Medical School
| | - Chengchun Tang
- Department of Cardiology, Zhongda Hospital, Nanjing, China
| | - Gaoliang Yan
- Department of Cardiology, Zhongda Hospital, Nanjing, China
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von Haehling S. Co-morbidities in heart failure beginning to sprout-and no end in sight? Eur J Heart Fail 2018; 19:1566-1568. [PMID: 29271591 DOI: 10.1002/ejhf.1098] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Stephan von Haehling
- Department of Cardiology and Pneumology, University of Göttingen Medical School, Göttingen, Germany
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Malyszko J, Anker SD. Iron therapy in heart failure patients without anaemia: possible implications for chronic kidney disease patients. Clin Kidney J 2017; 10:i25-i31. [PMID: 29225820 PMCID: PMC5716152 DOI: 10.1093/ckj/sfx070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 05/31/2017] [Indexed: 12/14/2022] Open
Abstract
Iron deficiency anaemia is a global health problem that manifests as fatigue and poor physical endurance. Anaemia can be caused by dietary iron deficiency, blood loss or a combination of poor iron absorption and ineffective iron mobilization in patients with chronic disease. Nephrologists caring for patients with impaired renal function understand that iron treatment is necessary to provide adequate iron for erythropoiesis during the treatment of overt anaemia. However, a less well-understood health problem is iron deficiency, which creates symptoms that overlap with those of anaemia and often occurs in concert with chronic disease. Recently, several randomized controlled clinical trials have been conducted to investigate the effects of treatment with intravenous iron in heart failure patients with iron deficiency who may or may not also have anaemia. Given that heart and kidney disease are often comorbid, these clinical trials may have implications for the way nephrologists view their patients with iron deficiency. In this article, we review several clinical studies of intravenous iron therapy for patients with iron deficiency and heart failure and discuss possible implications for the treatment of patients with kidney disease.
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Affiliation(s)
- Jolanta Malyszko
- 2 Department of Nephrology, Medical University of Bialystok, Bialystok, Poland
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Wigger O, Bloechlinger S, Berger D, Häner J, Zanchin T, Windecker S, Räber L, Schefold JC. Baseline serum bicarbonate levels independently predict short-term mortality in critically ill patients with ischaemic cardiogenic shock. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2016; 7:45-52. [PMID: 28838261 DOI: 10.1177/2048872616683526] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Cardiogenic shock is a feared complication of acute myocardial infarction with high mortality rates. Data on the predictive role of acid base dysregulation in this clinical setting are sparse. We therefore embarked on investigating the predictive role of serum bicarbonate in critically ill intensive care unit (ICU) patients with cardiogenic shock. METHODS A total of 165 ischaemic cardiogenic shock patients (118 men, aged 68.4 years (interquartile range 59.0-77.4), APACHE II score 26.0 (interquartile range 21.0-29.0), after percutaneous coronary intervention were included in a single-centre analysis. Percutaneous coronary intervention-related data such as left ventricular ejection fraction and laboratory indices were recorded and routine clinical follow-up was obtained at hospital discharge and at one year. All-cause mortality was assessed and data were analysed using univariate and multivariate models. RESULTS All-cause mortality was highest (17%) during the first 48 hours following ICU admission (28-day mortality rate 43%). In a multiple regression model, age (hazard ratio (HR) 1.035, 95% confidence interval (CI) 1.011-1.059, P=0.004), APACHE II score (HR 1.036, 95% CI 1.002-1.072, P=0.037) and baseline serum bicarbonate levels (HR 0.93, 95% CI 0.866-0.998, P=0.046) independently predicted 28-day mortality (overall model fit χ2 22.9, P<0.0001). The HR for patients in the lowest baseline serum bicarbonate tertile for 365-day mortality was HR 2.06 (95% CI 1.20-3.53). CONCLUSIONS In a large cohort of consecutive cardiogenic shock patients hospitalised in the ICU, low serum bicarbonate levels at admission independently predicted mortality. Given the widespread availability of blood gas analysers in ICUs, we propose baseline serum bicarbonate levels as an additional biomarker for identification and stratification of cardiogenic shock patients at risk.
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Affiliation(s)
- Olivier Wigger
- 1 Department of Cardiology, Bern University Hospital, Switzerland
| | - Stefan Bloechlinger
- 1 Department of Cardiology, Bern University Hospital, Switzerland
- 2 Department of Intensive Care Medicine, Bern University Hospital, Switzerland
| | - David Berger
- 3 Department of Intensive Care Medicine, Bern University Hospital, Switzerland
| | - Jonas Häner
- 1 Department of Cardiology, Bern University Hospital, Switzerland
| | - Thomas Zanchin
- 1 Department of Cardiology, Bern University Hospital, Switzerland
| | | | - Lorenz Räber
- 1 Department of Cardiology, Bern University Hospital, Switzerland
| | - Joerg C Schefold
- 3 Department of Intensive Care Medicine, Bern University Hospital, Switzerland
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von Haehling S, Papp Z, Anker SD. ESC Heart Failure: a new journal aims to broaden heart failure views. Eur J Heart Fail 2016; 18:1415-1419. [PMID: 27910285 DOI: 10.1002/ejhf.692] [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: 10/10/2016] [Accepted: 10/12/2016] [Indexed: 11/06/2022] Open
Affiliation(s)
- Stephan von Haehling
- Department of Cardiology and Pneumology, Innovative Clinical Trials, University Medical Center Göttingen, Göttingen, Germany
| | - Zoltan Papp
- Division of Clinical Physiology, Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Stefan D Anker
- Department of Cardiology and Pneumology, Innovative Clinical Trials, University Medical Center Göttingen, Göttingen, Germany
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Lack of evidence of lower 30-day all-cause readmission in Medicare beneficiaries with heart failure and reduced ejection fraction discharged on spironolactone. Int J Cardiol 2016; 227:462-466. [PMID: 27866868 DOI: 10.1016/j.ijcard.2016.11.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/28/2016] [Accepted: 11/02/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND Therapy with evidence-based heart failure (HF) medications has been shown to be associated with lower risk of 30-day all-cause readmission in patients with HF and reduced ejection fraction (HFrEF). METHODS We examined the association of aldosterone antagonist use with 30-day all-cause readmission in this population. Of the 2443 Medicare beneficiaries with HF and left ventricular EF ≤35% discharged home from 106 Alabama hospitals during 1998-2001, 2060 were eligible for spironolactone therapy (serum creatinine ≤2.5 for men and ≤2mg/dl for women, and serum potassium <5mEq/L). After excluding 186 patients already receiving spironolactone on admission, the inception cohort consisted of 1874 patients eligible for a new discharge prescription for spironolactone, of which 329 received one. Using propensity scores for initiation of spironolactone therapy, we assembled a matched cohort of 324 pairs of patients receiving and not receiving spironolactone balanced on 34 baseline characteristics (mean age 72years, 42% women, 33% African American). RESULTS Thirty-day all-cause readmission occurred in 17% and 19% of matched patients receiving and not receiving spironolactone, respectively (hazard ratio [HR], 0.92; 95% confidence interval [CI], 0.64-1.32; p=0.650). Spironolactone had no association with 30-day all-cause mortality (HR, 0.84; 95% CI, 0.38-1.88; p=0.678) or HF readmission (HR, 0.74; 95% CI, 0.41 1.31; p=0.301). These associations remained unchanged during 12months of post-discharge follow-up. CONCLUSION A discharge prescription for spironolactone had no association with 30-day all-cause readmission among older, hospitalized Medicare beneficiaries with HFrEF eligible for spironolactone therapy.
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Schefold JC, Lainscak M, Hodoscek LM, Blöchlinger S, Doehner W, von Haehling S. Single baseline serum creatinine measurements predict mortality in critically ill patients hospitalized for acute heart failure. ESC Heart Fail 2015; 2:122-128. [PMID: 27774258 PMCID: PMC5054851 DOI: 10.1002/ehf2.12058] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 06/12/2015] [Accepted: 07/09/2015] [Indexed: 02/04/2023] Open
Abstract
Background Acute heart failure (AHF) is a leading cause of death in critically ill patients and is often accompanied by significant renal dysfunction. Few data exist on the predictive value of measures of renal dysfunction in large cohorts of patients hospitalized for AHF. Methods Six hundred and eighteen patients hospitalized for AHF (300 male, aged 73.3 ± 10.3 years, 73% New York Heart Association Class 4, mean hospital length of stay 12.9 ± 7.7 days, 97% non‐ischaemic AHF) were included in a retrospective single‐centre data analysis. Echocardiographic data, serum creatinine/urea levels, estimated glomerular filtration rate (eGFR), and clinical/laboratory markers were recorded. Mean follow‐up time was 2.9 ± 2.1 years. All‐cause mortality was recorded, and univariate/multivariate analyses were performed. Results Normal renal function defined as eGFR > 90 mL/min/1.73 m2 was noted in only 3% of AHF patients at baseline. A significant correlation of left ventricular ejection fraction with serum creatinine levels and eGFR (all P < 0.002) was noted. All‐cause mortality rates were 12% (90 days) and 40% (at 2 years), respectively. In a multivariate model, increased age, higher New York Heart Association class at admission, higher total cholesterol levels, and lower eGFR independently predicted death. Patients with baseline eGFR < 30 mL/min/1.73 m2 had an exceptionally high risk of death (odds ratio 2.80, 95% confidence interval 1.52–5.15, P = 0.001). Conclusions In a large cohort of patients with mostly non‐ischaemic AHF, enhanced serum creatinine levels and reduced eGFR independently predict death. It appears that patients with eGFR < 30 mL/min/1.73 m2 have poorest survival rates. Our data add to mounting data indicating that impaired renal function is an important risk factor for non‐survival in patients hospitalized for AHF.
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Affiliation(s)
- Joerg C Schefold
- Department of Nephrology and Intensive Care MedicineCharité University MedicineBerlinGermany; Department of Intensive Care Medicine, InselspitalBern University HospitalBernSwitzerland
| | - Mitja Lainscak
- Department of CardiologyGeneral and Teaching Hospital CeljeCeljeSlovenia; Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
| | - Lea Majc Hodoscek
- Department of Internal Medicine General Hospital Murska Sobota Murska Sobota Slovenia
| | - Stefan Blöchlinger
- Deptartment of Cardiology, Inselspital Bern University Hospital Bern Switzerland
| | - Wolfram Doehner
- Center for Stroke Research BerlinCharité Universitätsmedizin BerlinBerlinGermany; Department of CardiologyCharité Universitätsmedizin BerlinBerlinGermany
| | - Stephan von Haehling
- Department of CardiologyCharité Universitätsmedizin BerlinBerlinGermany; Department of Cardiology and Center for Innovative TrialsUniversity of GöttingenGöttingenGermany
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