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Zeder K, Siew ED, Kovacs G, Brittain EL, Maron BA. Pulmonary hypertension and chronic kidney disease: prevalence, pathophysiology and outcomes. Nat Rev Nephrol 2024:10.1038/s41581-024-00857-7. [PMID: 38890546 DOI: 10.1038/s41581-024-00857-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2024] [Indexed: 06/20/2024]
Abstract
Pulmonary hypertension (PH) is common in patients with chronic kidney disease (CKD) or kidney failure, with an estimated prevalence of up to 78% in those referred for right-heart catheterization. PH is independently associated with adverse outcomes in CKD, raising the possibility that early detection and appropriate management of PH might improve outcomes in at-risk patients. Among patients with PH, the prevalence of CKD stages 3 and 4 is estimated to be as high as 36%, and CKD is also independently associated with adverse outcomes. However, the complex, heterogenous pathophysiology and clinical profile of CKD-PH requires further characterization. CKD is often associated with elevated left ventricular filling pressure and volume overload, which presumably leads to pulmonary vascular stiffening and post-capillary PH. By contrast, a distinct subgroup of patients at high risk is characterized by elevated pulmonary vascular resistance and right ventricular dysfunction in the absence of pulmonary venous hypertension, which may represent a right-sided cardiorenal syndrome defined in principle by hypervolaemia, salt avidity, low cardiac output and normal left ventricular function. Current understanding of CKD-PH is limited, despite its potentially important ramifications for clinical decision making. In particular, whether PH should be considered when determining the suitability and timing of kidney replacement therapy or kidney transplantation is unclear. More research is urgently needed to address these knowledge gaps and improve the outcomes of patients with or at risk of CKD-PH.
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Affiliation(s)
- Katarina Zeder
- Division of Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Cardiovascular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- The University of Maryland-Institute for Health Computing, Bethesda, MD, USA
| | - Edward D Siew
- Division of Nephrology and Hypertension, Vanderbilt Center for Kidney Disease and Integrated Program for Acute Kidney Injury, Nashville, TN, USA
| | - Gabor Kovacs
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Evan L Brittain
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bradley A Maron
- Division of Cardiovascular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
- The University of Maryland-Institute for Health Computing, Bethesda, MD, USA.
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2
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Alevroudis I, Kotoulas SC, Tzikas S, Vassilikos V. Congestion in Heart Failure: From the Secret of a Mummy to Today's Novel Diagnostic and Therapeutic Approaches: A Comprehensive Review. J Clin Med 2023; 13:12. [PMID: 38202020 PMCID: PMC10779505 DOI: 10.3390/jcm13010012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/04/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024] Open
Abstract
This review paper presents a review of the evolution of this disease throughout the centuries, describes and summarizes the pathophysiologic mechanisms, briefly discusses the mechanism of action of diuretics, presents their role in decongesting heart failure in patients, and reveals the data behind ultrafiltration in the management of acutely or chronically decompensated heart failure (ADHF), focusing on all the available data and advancements in this field. Acutely decompensated heart failure (ADHF) presents a critical clinical condition characterized by worsening symptoms and signs of heart failure, necessitating prompt intervention to alleviate congestion and improve cardiac function. Diuretics have traditionally been the mainstay for managing fluid overload in ADHF. Mounting evidence suggests that due to numerous causes, such as coexisting renal failure or chronic use of loop diuretics, an increasing rate of diuretic resistance is noticed and needs to be addressed. There has been a series of trials that combined diuretics of different categories without the expected results. Emerging evidence suggests that ultrafiltration may offer an alternative or adjunctive approach.
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Affiliation(s)
- Ioannis Alevroudis
- Third Department of Cardiology, Ippokratio General Hospital, Aristotle University of Thessaloniki, 54642 Thessaloniki, Greece (V.V.)
- Intensive Care Medicine Clinic, Ippokratio General Hospital, Aristotle University of Thessaloniki, 54642 Thessaloniki, Greece;
| | | | - Stergios Tzikas
- Third Department of Cardiology, Ippokratio General Hospital, Aristotle University of Thessaloniki, 54642 Thessaloniki, Greece (V.V.)
| | - Vassilios Vassilikos
- Third Department of Cardiology, Ippokratio General Hospital, Aristotle University of Thessaloniki, 54642 Thessaloniki, Greece (V.V.)
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3
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Effects of Sacubitril/Valsartan on the Renal Resistance Index. J Clin Med 2022; 11:jcm11133683. [PMID: 35806967 PMCID: PMC9267475 DOI: 10.3390/jcm11133683] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Sacubitril/valsartan plays a key role in improving left ventricular remodeling and prognosis in patients with heart failure with a reduced ejection fraction (HFrEF). Moreover, some data support its role in preserving renal function. In order to better clarify the effects of sacubitril/valsartan in cardiorenal syndrome, this study evaluated its effects on the renal resistance index (RRI). Methods: A group of patients with HFrEF was enrolled. The RRI was assessed with renal echo-color Doppler at enrollment and again after at least six months of sacubitril/valsartan treatment. In a subgroup of patients, the RRI was also evaluated at least six months before enrollment. The variations in echocardiographic parameters reflecting the left and right ventricular function, as well as creatinine and the estimated glomerular filtration rate, were also evaluated. Results: After treatment with sacubitril/valsartan, significant improvements in the left ventricular ejection fraction, and a decrease in the left atrial and ventricular volumes were observed. The RRI also showed a significant decrease. No relationship was found between the improvements in the parameters reflecting cardiac function and changes in the RRI. Conclusions: Treatment with sacubitril/valsartan is associated with improvements in both left ventricular function and renal perfusion, through decreasing the renal resistance. These data help to clarify the effects of the drug on cardiorenal syndrome progression.
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Congestive Nephropathy. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19052499. [PMID: 35270191 PMCID: PMC8909002 DOI: 10.3390/ijerph19052499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/19/2022] [Accepted: 02/20/2022] [Indexed: 12/03/2022]
Abstract
The complex interaction between cardiac and renal functions is known. However, when these functions are disrupted, many intricate and sensitive interactions between these organs are failed by several pathophysiological ways. As a result, this malfunction is clinically evident by sign and symptoms associated to intravascular and interstitial congestion. In this sense, the adverse impact of venous congestion on renal function has long been recognized. Currently, the presence of a specific subtype of nephropathy associated to congestion has been suggested. Even though no diagnosis criteria has been clearly stablished, and no renal specific histological pattern were reported; studies regarding this issue may help to improve the handling and therapeutic principles in affected patients.
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5
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Goffredo G, Barone R, Di Terlizzi V, Correale M, Brunetti ND, Iacoviello M. Biomarkers in Cardiorenal Syndrome. J Clin Med 2021; 10:jcm10153433. [PMID: 34362216 PMCID: PMC8348334 DOI: 10.3390/jcm10153433] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 07/29/2021] [Indexed: 01/16/2023] Open
Abstract
Cardiorenal syndrome is a clinical manifestation of the bidirectional interaction between the heart and kidney diseases. Over the last years, in patients with cardiovascular diseases, several biomarkers have been studied in order to better assess renal function as well as to identify patients prone to experiencing chronic or acute worsening of renal function. The aim of this review is to focus on the possible clinical usefulness of the most recent biomarkers in the setting of cardiorenal syndrome.
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Affiliation(s)
- Giovanni Goffredo
- Department of Medical and Surgical Sciences, University of Foggia, Viale Luigi Pinto 1, 71122 Foggia, Italy; (G.G.); (R.B.); (V.D.T.); (M.C.); (N.D.B.)
- Cardiology Unit, University Policlinic Hospital Riuniti, Viale Luigi Pinto 1, 71122 Foggia, Italy
| | - Roberta Barone
- Department of Medical and Surgical Sciences, University of Foggia, Viale Luigi Pinto 1, 71122 Foggia, Italy; (G.G.); (R.B.); (V.D.T.); (M.C.); (N.D.B.)
- Cardiology Unit, University Policlinic Hospital Riuniti, Viale Luigi Pinto 1, 71122 Foggia, Italy
| | - Vito Di Terlizzi
- Department of Medical and Surgical Sciences, University of Foggia, Viale Luigi Pinto 1, 71122 Foggia, Italy; (G.G.); (R.B.); (V.D.T.); (M.C.); (N.D.B.)
- Cardiology Unit, University Policlinic Hospital Riuniti, Viale Luigi Pinto 1, 71122 Foggia, Italy
| | - Michele Correale
- Department of Medical and Surgical Sciences, University of Foggia, Viale Luigi Pinto 1, 71122 Foggia, Italy; (G.G.); (R.B.); (V.D.T.); (M.C.); (N.D.B.)
- Cardiology Unit, University Policlinic Hospital Riuniti, Viale Luigi Pinto 1, 71122 Foggia, Italy
| | - Natale Daniele Brunetti
- Department of Medical and Surgical Sciences, University of Foggia, Viale Luigi Pinto 1, 71122 Foggia, Italy; (G.G.); (R.B.); (V.D.T.); (M.C.); (N.D.B.)
- Cardiology Unit, University Policlinic Hospital Riuniti, Viale Luigi Pinto 1, 71122 Foggia, Italy
| | - Massimo Iacoviello
- Department of Medical and Surgical Sciences, University of Foggia, Viale Luigi Pinto 1, 71122 Foggia, Italy; (G.G.); (R.B.); (V.D.T.); (M.C.); (N.D.B.)
- Cardiology Unit, University Policlinic Hospital Riuniti, Viale Luigi Pinto 1, 71122 Foggia, Italy
- Correspondence:
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Abstract
Acute decompensated heart failure (ADHF) is one of the leading admission diagnoses worldwide, yet it is an entity with incompletely understood pathophysiology and limited therapeutic options. Patients admitted for ADHF have high in-hospital morbidity and mortality, as well as frequent rehospitalizations and subsequent cardiovascular death. This devastating clinical course is partly due to suboptimal medical management of ADHF with persistent congestion upon hospital discharge and inadequate predischarge initiation of life-saving guideline-directed therapies. While new drugs for the treatment of chronic HF continue to be approved, there has been no new therapy approved for ADHF in decades. This review will focus on the current limited understanding of ADHF pathophysiology, possible therapeutic targets, and current limitations in expanding available therapies in light of the unmet need among these high-risk patients.
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Affiliation(s)
- Joyce N. Njoroge
- Division of Cardiology, School of Medicine, University of California San Francisco (J.N.N., J.R.T.), San Francisco, CA
| | - John R. Teerlink
- Division of Cardiology, School of Medicine, University of California San Francisco (J.N.N., J.R.T.), San Francisco, CA
- Section of Cardiology, San Francisco Veterans Affairs Medical Center (J.R.T.), San Francisco, CA
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7
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Çakal B, Özcan ÖU, Omaygenç MO, Karaca İO, Kızılırmak F, Gunes HM, Boztosun B. Value of Renal Vascular Doppler Sonography in Cardiorenal Syndrome Type 1. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2021; 40:321-330. [PMID: 32701176 DOI: 10.1002/jum.15404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/26/2020] [Accepted: 06/26/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES Worsening of renal function in a patient with acute decompensated heart failure is called cardiorenal syndrome (CRS) type 1. Recent studies have shown an association of persistent systemic venous congestion with renal dysfunction. This trial was set up to investigate the changes of renal Doppler parameters with diuretic therapy in patients with CRS type 1. METHODS Cases of CRS type 1 were identified among patients hospitalized for decompensated heart failure. Serial measurements of the renal venous impedance index (VII) and arterial resistive index (ARI) were calculated by pulsed wave Doppler sonography. RESULTS A total of 30 patients who had creatinine improvement with diuresis (group 1) and 34 patients without any improvement (group 2) were analyzed. Patients in group 1 had higher median VII and ARI (VII, 0.86 versus 0.66; P < .001; ARI, 0.78 versus 0.65; P < .001) on admission. A high ARI on admission (odds ratio, 6.25; 95% confidence interval, 1.84-14.3; P = .003) predicted the improvement of serum creatinine levels with diuretic therapy independent of confounding factors in patients with CRS type 1. CONCLUSIONS Renal vascular Doppler parameters might offer guidance on the diagnostic and therapeutic strategies in prescribing decongestive therapy for decompensated heart failure.
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Affiliation(s)
- Beytullah Çakal
- Department of Cardiology, Istanbul Medipol University, Faculty of Medicine, Istanbul, Turkey
| | - Özgür Ulaş Özcan
- Department of Cardiology, Istanbul Medipol University, Faculty of Medicine, Istanbul, Turkey
| | - Mehmet Onur Omaygenç
- Department of Cardiology, Istanbul Medipol University, Faculty of Medicine, Istanbul, Turkey
| | - İbrahim Oğuz Karaca
- Department of Cardiology, Istanbul Medipol University, Faculty of Medicine, Istanbul, Turkey
| | - Filiz Kızılırmak
- Department of Cardiology, Istanbul Medipol University, Faculty of Medicine, Istanbul, Turkey
| | - Haci Murat Gunes
- Department of Cardiology, Istanbul Medipol University, Faculty of Medicine, Istanbul, Turkey
| | - Bilal Boztosun
- Department of Cardiology, Istanbul Medipol University, Faculty of Medicine, Istanbul, Turkey
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8
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Deferrari G, Cipriani A, La Porta E. Renal dysfunction in cardiovascular diseases and its consequences. J Nephrol 2021; 34:137-153. [PMID: 32870495 PMCID: PMC7881972 DOI: 10.1007/s40620-020-00842-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/12/2020] [Indexed: 12/13/2022]
Abstract
It is well known that the heart and kidney and their synergy is essential for hemodynamic homeostasis. Since the early XIX century it has been recognized that cardiovascular and renal diseases frequently coexist. In the nephrological field, while it is well accepted that renal diseases favor the occurrence of cardiovascular diseases, it is not always realized that cardiovascular diseases induce or aggravate renal dysfunctions, in this way further deteriorating cardiac function and creating a vicious circle. In the same clinical field, the role of venous congestion in the pathogenesis of renal dysfunction is at times overlooked. This review carefully quantifies the prevalence of chronic and acute kidney abnormalities in cardiovascular diseases, mainly heart failure, regardless of ejection fraction, and the consequences of renal abnormalities on both organs, making cardiovascular diseases a major risk factor for kidney diseases. In addition, with regard to pathophysiological aspects, we attempt to substantiate the major role of fluid overload and venous congestion, including renal venous hypertension, in the pathogenesis of acute and chronic renal dysfunction occurring in heart failure. Furthermore, we describe therapeutic principles to counteract the major pathophysiological abnormalities in heart failure complicated by renal dysfunction. Finally, we underline that the mild transient worsening of renal function after decongestive therapy is not usually associated with adverse prognosis. Accordingly, the coexistence of cardiovascular and renal diseases inevitably means mediating between preserving renal function and improving cardiac activity to reach a better outcome.
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Affiliation(s)
- Giacomo Deferrari
- Department of Cardionephrology, Istituto Clinico Ligure Di Alta Specialità (ICLAS), GVM Care and Research, Via Mario Puchoz 25, 16035, Rapallo, GE, Italy.
- Department of Internal Medicine (DiMi), University of Genoa, Genoa, Italy.
| | - Adriano Cipriani
- Grown-Up Congentital Heart Disease Center (GUCH Center), Istituto Clinico Ligure Di Alta Specialità (ICLAS), GVM Care and Research, Rapallo, GE, Italy
| | - Edoardo La Porta
- Department of Cardionephrology, Istituto Clinico Ligure Di Alta Specialità (ICLAS), GVM Care and Research, Via Mario Puchoz 25, 16035, Rapallo, GE, Italy
- Department of Internal Medicine (DiMi), University of Genoa, Genoa, Italy
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Safe Use of Loop Diuretics in the Management of Acute Decompensated Heart Failure in the Setting of Worsening Renal Function. Am J Ther 2021; 28:e708-e721. [PMID: 33443869 DOI: 10.1097/mjt.0000000000001328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Wang Z, Ge M, Chen T, Chen C, Zong Q, Lu L, Wang D. Acute kidney injury in patients operated on for type A acute aortic dissection: incidence, risk factors and short-term outcomes. Interact Cardiovasc Thorac Surg 2020; 31:697-703. [PMID: 32851399 DOI: 10.1093/icvts/ivaa164] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 06/29/2020] [Accepted: 07/12/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Acute kidney injury (AKI) is a relatively common complication after an operation for type A acute aortic dissection and is indicative of a poor prognosis. We examined the risk factors for and the outcomes of developing AKI in patients being operated on for thoracic aortic diseases. METHODS We retrospectively analysed 712 patients with acute type A dissection who had deep hypothermic circulatory operations from January 2014 to December 2018, emphasizing those who developed AKI. Logistic regression models were used to identify predisposing factors for the postoperative development of AKI. RESULTS Among all enrolled patients, 359 (50.4%) had AKI; of these, 133 were diagnosed as stage 1 (18.7%), 126 were stage 2 (17.7%) and 100 were stage 3 (14.0%). Postoperative haemodialysis was required in 111 patients (15.9%). The development of AKI after aortic surgery contributed to the higher mortality rate within 30 days after surgery (P < 0.001), longer stay in the intensive care unit (P = 0.01) and longer hospital stay (P < 0.001). Binary logistic regression analysis showed that preoperative cystatin C levels [odds ratio (OR) 2.615, 95% confidence interval (CI) 1.139-6.002; P = 0.023] and postoperative ventilation time (OR 1.019, 95% CI 1.005-1.034; P = 0.009) were independent risk factors for developing AKI. Multiple ordinal logistic regression analyses showed that the preoperative cystatin C level (OR 2.921, 95% CI 1.542-5.540; P = 0.001) was an independent risk factor associated with the severity of AKI. CONCLUSIONS Our data suggested that the development of AKI after surgery for type A acute aortic dissection was common and associated with an increased short-term mortality rate. The preoperative cystatin C level was identified as an indicator for the occurrence and severity of AKI postoperatively. Furthermore, we discovered that longer postoperative ventilation time was also associated with the development of AKI.
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Affiliation(s)
- Zhigang Wang
- Department of Cardio-thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Min Ge
- Department of Cardio-thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Tao Chen
- Department of Cardio-thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Cheng Chen
- Department of Cardio-thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Qiuyan Zong
- Department of Cardio-thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Lichong Lu
- Department of Cardio-thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Dongjin Wang
- Department of Cardio-thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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11
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Zhu X, Cheang I, Liao S, Wang K, Yao W, Yin T, Lu X, Zhou Y, Zhang H, Li X. Blood Urea Nitrogen to Creatinine Ratio and Long-Term Mortality in Patients with Acute Heart Failure: A Prospective Cohort Study and Meta-Analysis. Cardiorenal Med 2020; 10:415-428. [PMID: 33113531 DOI: 10.1159/000509834] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/29/2020] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To further explore the relationship between the blood urea nitrogen to creatinine (BUN/Cr) ratio and the prognosis of patients with acute heart failure (AHF), a two-part study consisting of a prospective cohort study and meta-analysis were conducted. METHODS A total of 509 hospitalized patients with AHF were enrolled and followed up. Cox proportional hazards regression was used to analyze the relationship between the BUN/Cr ratio and the long-term prognosis of patients with AHF. Meta-analysis was also conducted regarding the topic by searching PubMed and Embase for relevant studies published up to October 2019. RESULTS During a median follow-up of 2.8 years, 197 (42.6%) deaths occurred. The cumulative survival rate of patients with a BUN/Cr ratio in the bottom quartile was significantly lower than in the other 3 groups (log-rank test: p = 0.003). In multivariate Cox regression models, the mortality rate of AHF patients with a BUN/Cr ratio in the bottom quartile was significantly higher than in the top quartile (adjusted HR 1.52; 95% CI 1.03-2.24). For the meta-analysis, we included 8 studies with 4,700 patients, consisting of 7 studies from the database and our cohort study. The pooled analysis showed that the highest BUN/Cr ratio category was associated with an 77% higher all-cause mortality than the lowest category (pooled HR 1.77; 95% CI 1.52-2.07). CONCLUSIONS Elevated BUN/Cr ratio is associated with poor prognosis in patients with AFH and is an independent predictor of all-cause mortality.
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Affiliation(s)
- Xu Zhu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Iokfai Cheang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shengen Liao
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Kai Wang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenming Yao
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ting Yin
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xinyi Lu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yanli Zhou
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Haifeng Zhang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xinli Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China,
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12
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Verbrugge FH, Guazzi M, Testani JM, Borlaug BA. Altered Hemodynamics and End-Organ Damage in Heart Failure: Impact on the Lung and Kidney. Circulation 2020; 142:998-1012. [PMID: 32897746 DOI: 10.1161/circulationaha.119.045409] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heart failure is characterized by pathologic hemodynamic derangements, including elevated cardiac filling pressures ("backward" failure), which may or may not coexist with reduced cardiac output ("forward" failure). Even when normal during unstressed conditions such as rest, hemodynamics classically become abnormal during stressors such as exercise in patients with heart failure. This has important upstream and downstream effects on multiple organ systems, particularly with respect to the lungs and kidneys. Hemodynamic abnormalities in heart failure are affected by processes that extend well beyond the cardiac myocyte, including important roles for pericardial constraint, ventricular interaction, and altered venous capacity. Hemodynamic perturbations have widespread effects across multiple heart failure phenotypes, ranging from reduced to preserved ejection fraction, acute to chronic disease, and cardiogenic shock to preserved perfusion states. In the lung, hemodynamic derangements lead to the development of abnormalities in ventilatory control and efficiency, pulmonary congestion, capillary stress failure, and eventually pulmonary vascular disease. In the kidney, hemodynamic perturbations lead to sodium and water retention and worsening renal function. Improved understanding of the mechanisms by which altered hemodynamics in heart failure affect the lungs and kidneys is needed in order to design novel strategies to improve clinical outcomes.
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Affiliation(s)
- Frederik H Verbrugge
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN (F.H.V., B.A.B.).,Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Belgium (F.H.V.)
| | - Marco Guazzi
- Cardiology University Department, Heart Failure Unit, University of Milano, IRCCS Policlinico San Donato, Milan, Italy (M.G.)
| | - Jeffrey M Testani
- Section of Cardiovascular Medicine, Yale University, New Haven, CT (J.M.T.)
| | - Barry A Borlaug
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN (F.H.V., B.A.B.)
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13
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Hamza SM, Huang X, Zehra T, Zhuang W, Cupples WA, Braam B. Chronic elevation of renal venous pressure induces extensive renal venous collateral formation and modulates renal function and cardiovascular stability in rats. Am J Physiol Renal Physiol 2020; 319:F76-F83. [PMID: 32475131 DOI: 10.1152/ajprenal.00542.2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Acutely increased renal venous pressure (RVP) impairs renal function, but the long-term impact is unknown. We investigated whether chronic RVP elevation impairs baseline renal function and prevents exacerbation of renal dysfunction and cardiovascular instability upon further RVP increase. RVP elevation (20-25 mmHg) or sham operation (sham) was performed in rats. After 1 wk (n = 17) or 3 wk (n = 22), blood pressure, RVP, renal blood flow (RBF), renal vascular conductance (RVC), and glomerular filtration rate (GFR) were measured at baseline and during superimposed RVP increase. Chronic RVP elevation induced extensive renal venous collateral formation. RVP fell to 6 ± 1 mmHg at 1 wk and 3 ± 1 mmHg at 3 wk. Baseline blood pressure and heart rate were unaltered compared with sham. RBF, RVC, and GFR were reduced at 1 wk but normalized by 3 wk. Upon further RVP increase, the drop in mean arterial pressure was attenuated at 3 wk compared with 1 wk (P < 0.05), whereas heart rate fell comparably across all groups; the mean arterial pressure-heart rate relationship was disrupted at 1 and 3 wk. RBF fell to a similar degree as sham at 1 wk (-2.3 ± 0.7 vs. -3.9 ± 1.2 mL/min, P = 0.066); however, at 3 wk, this was attenuated compared with sham (-1.5 ± 0.5 vs. -4.2 ± 0.7 mL/min, P < 0.05). The drop in RVC and GFR was attenuated at 1 and 3 wk (P < 0.05). Thus, chronic RVP elevation induced by partial renal vein ligation elicits extensive renal venous collateral formation, and although baseline renal function is impaired, chronic RVP elevation in this manner induces protective adaptations in kidneys of healthy rats, which attenuates the hemodynamic response to further RVP increase.
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Affiliation(s)
- Shereen M Hamza
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
| | - Xiaohua Huang
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Tayyaba Zehra
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Wenqing Zhuang
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - William A Cupples
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Branko Braam
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
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Masked Hypotension due to Elevated Venous Pressure in a Patient with Complex Adult Congenital Heart Disease. Case Rep Cardiol 2020; 2020:7148708. [PMID: 32292606 PMCID: PMC7150732 DOI: 10.1155/2020/7148708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 03/05/2020] [Accepted: 03/21/2020] [Indexed: 12/01/2022] Open
Abstract
An adult with surgically corrected Tetralogy of Fallot presented with profoundly elevated central venous pressure (CVP) and acute renal dysfunction thought secondary to acute on chronic right heart failure. Treatment with dopamine promoted diuresis and a stabilization of renal function. Repeated attempts to wean the patient from dopamine were associated with hypotension and worsening renal failure. Invasive hemodynamic assessment unexpectedly demonstrated high cardiac output with low systemic vascular resistance (SVR). In retrospect, the markedly elevated CVP had concealed the impact of reduced SVR on blood pressure. After reversible causes of low SVR state were excluded, the patient was successfully managed with oral alpha-adrenergic agents. While typically negligible under physiologic conditions, elevated CVP can artificially increase mean arterial pressure. We have coined the term “masked hypotension” to describe this unique pathophysiological phenomenon.
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15
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Arrigo M, Jessup M, Mullens W, Reza N, Shah AM, Sliwa K, Mebazaa A. Acute heart failure. Nat Rev Dis Primers 2020; 6:16. [PMID: 32139695 PMCID: PMC7714436 DOI: 10.1038/s41572-020-0151-7] [Citation(s) in RCA: 218] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/28/2020] [Indexed: 12/11/2022]
Abstract
Acute heart failure (AHF) is a syndrome defined as the new onset (de novo heart failure (HF)) or worsening (acutely decompensated heart failure (ADHF)) of symptoms and signs of HF, mostly related to systemic congestion. In the presence of an underlying structural or functional cardiac dysfunction (whether chronic in ADHF or undiagnosed in de novo HF), one or more precipitating factors can induce AHF, although sometimes de novo HF can result directly from the onset of a new cardiac dysfunction, most frequently an acute coronary syndrome. Despite leading to similar clinical presentations, the underlying cardiac disease and precipitating factors may vary greatly and, therefore, the pathophysiology of AHF is highly heterogeneous. Left ventricular diastolic or systolic dysfunction results in increased preload and afterload, which in turn lead to pulmonary congestion. Fluid retention and redistribution result in systemic congestion, eventually causing organ dysfunction due to hypoperfusion. Current treatment of AHF is mostly symptomatic, centred on decongestive drugs, at best tailored according to the initial haemodynamic status with little regard to the underlying pathophysiological particularities. As a consequence, AHF is still associated with high mortality and hospital readmission rates. There is an unmet need for increased individualization of in-hospital management, including treatments targeting the causative factors, and continuation of treatment after hospital discharge to improve long-term outcomes.
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Affiliation(s)
- Mattia Arrigo
- Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Mariell Jessup
- Division of Cardiovascular Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Wilfried Mullens
- Ziekenhuis Oost Limburg, Genk, Belgium.,University of Hasselt, Hasselt, Belgium
| | - Nosheen Reza
- Division of Cardiovascular Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ajay M. Shah
- School of Cardiovascular Medicine & Sciences, King’s College London British Heart Foundation Centre, London, UK
| | - Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, Department of Medicine and Cardiology, University of Cape Town, Cape Town, South Africa
| | - Alexandre Mebazaa
- Université de Paris, MASCOT, Inserm, Paris, France. .,Department of Anesthesia, Burn and Critical Care Medicine, AP-HP, Hôpital Lariboisière, Paris, France.
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16
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Abstract
Cardiorenal syndrome is a complex interplay of dysregulated heart and kidney interaction that leads to multiorgan system dysfunction, which is not an uncommon occurrence in the setting of right heart failure. The traditional concept of impaired perfusion and forward flow recently has been modified to include the recognition of systemic venous congestion as a contributor, with direct and indirect mechanisms, including elevated renal venous pressure, reduced renal perfusion pressure, increased renal interstitial pressure, tubular dysfunction, splanchnic congestion, and neurohormonal and inflammatory activation. Treatment options beyond diuretics and vasoactive drugs remain limited and lack supportive evidence.
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Affiliation(s)
- Thida Tabucanon
- Kaufman Center for Heart Failure Treatment and Recovery, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk J3-4, Cleveland, OH 44195, USA
| | - Wai Hong Wilson Tang
- Kaufman Center for Heart Failure Treatment and Recovery, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk J3-4, Cleveland, OH 44195, USA; Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Avenue, Desk J3-4, Cleveland, OH 44195, USA.
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17
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Positive association between intra-operative fluid balance and post-operative acute kidney injury in non-cardiac surgery: the NARA-AKI cohort study. J Nephrol 2019; 33:561-568. [PMID: 31865609 DOI: 10.1007/s40620-019-00688-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/15/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Little is known about the association between intra-operative fluid balance (IFB) and post-operative acute kidney injury (AKI) in non-cardiac surgery. METHODS This is a retrospective cohort study. Adults who underwent non-cardiac surgery under general anesthesia from 2007 to 2011 at Nara Medical University Hospital were included. Those with obstetric or urological surgery, missing data, or pre-operative dialysis were excluded. Exposure of interest was IFB, defined as (amount of fluid administration - urine output - amount of bleeding)/body weight. Outcome variable was post-operative AKI within 1 week after surgery. Data were analyzed using logistic regression models and restricted cubic spline (RCS) analysis. RESULTS Among 5168 subjects, AKI was observed in 309 (6.0%). Higher IFB (per 1 standard deviation) was independently associated with post-operative AKI after adjustment for potential confounders (odds ratio [95% confidence interval] of 1.18 [1.06-1.31]). The RCS curve showed an increase in expected probability of AKI associated with increase in IFB above 40 mL/kg. Subgroup analyses indicated higher IFB was especially associated with AKI among those with lower serum albumin, higher C-reactive protein, or positive proteinuria. The association was similar across intra-operative urine output or amount of bleeding (p for interaction 0.34 and 0.47, respectively), suggesting the association was not due to intra-operative oliguria or large amount of bleeding necessitating volume resuscitation. CONCLUSIONS Higher IFB was independently associated with increase in post-operative AKI. Excessive fluid administration might have caused renal congestion and subsequent AKI. Avoiding fluid overload might be important in prevention of AKI.
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18
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Yogasundaram H, Chappell MC, Braam B, Oudit GY. Cardiorenal Syndrome and Heart Failure-Challenges and Opportunities. Can J Cardiol 2019; 35:1208-1219. [PMID: 31300181 PMCID: PMC9257995 DOI: 10.1016/j.cjca.2019.04.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/23/2019] [Accepted: 04/07/2019] [Indexed: 02/07/2023] Open
Abstract
Cardiorenal syndromes (CRS) describe concomitant bidirectional dysfunction of the heart and kidneys in which 1 organ initiates, perpetuates, and/or accelerates decline of the other. CRS are common in heart failure and universally portend worsened prognosis. Despite this heavy disease burden, the appropriate diagnosis and classification of CRS remains problematic. In addition to the hemodynamic drivers of decreased renal perfusion and increased renal vein pressure, induction of the renin-angiotensin-aldosterone system, stimulation of the sympathetic nervous system, disruption of balance between nitric oxide and reactive oxygen species, and inflammation are implicated in the pathogenesis of CRS. Medical therapy of heart failure including renin-angiotensin-aldosterone system inhibition and β-adrenergic blockade can blunt these deleterious processes. Renovascular disease can accelerate the progression of CRS. Volume overload and diuretic resistance are common and complicate the management of CRS. In heart failure and CRS being treated with diuretics, worsening creatinine is not associated with worsened outcome if clinical decongestion is achieved. Adjunctive therapy is often required in the management of volume overload in CRS, but evidence for these therapies is limited. Anemia and iron deficiency are importantly associated with CRS and might amplify decline of cardiac and renal function. End-stage cardiac and/or renal disease represents an especially poor prognosis with limited therapeutic options. Overall, worsening renal function is associated with significantly increased mortality. Despite progress in the area of CRS, there are still multiple pathophysiological and clinical aspects of CRS that need further research to eventually develop effective therapeutic options.
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Affiliation(s)
- Haran Yogasundaram
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Mark C Chappell
- Department of Surgery/Hypertension and Vascular Research, Cardiovascular Sciences Center, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Branko Braam
- Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
| | - Gavin Y Oudit
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada; Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.
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19
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Abstract
Acute kidney injury in acute decompensated heart failure leads to increased readmissions regardless of being transient or sustained at the time of discharge. Timely identification of acute kidney injury and worsening heart failure in patients with acute decompensated heart failure is of utmost importance to optimize different components of heart failure treatment. Acute kidney injury is a strong predictor of poor outcomes and early death in patients with pulmonary artery hypertension and acute right-sided heart failure. Extracorporeal ultrafiltration should not be used as an initial or alternative to diuretic therapy. It should be reserved for diuretic-resistant individuals.
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Affiliation(s)
- Prakash S Gudsoorkar
- Division of Nephrology Kidney C.A.R.E. Program, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA.
| | - Charuhas V Thakar
- Division of Nephrology Kidney C.A.R.E. Program, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA; Division of Nephrology, VA Medical Center, Cincinnati, OH, USA
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20
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21
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Abstract
Congestion is the predominant cause of more than 1 million annual heart failure hospitalisations and recurrent fluid overload predicts poor outcomes. Unresolved congestion trumps serum creatinine increases in predicting adverse heart failure outcomes. No pharmacological approach for acute heart failure has reduced these deleterious consequences. Simplified ultrafiltration devices permit fluid removal in lower acuity hospital settings, but results regarding safety and efficacy have been variable. However, adjustment of ultrafiltration rates to patients’ vital signs and renal function has been associated with more effective decongestion and fewer heart failure events. Many aspects of ultrafiltration, including patient selection, fluid removal rates, venous access, prevention of therapy-related complications and costs, require further investigation.
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22
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Ronco C, Bellasi A, Di Lullo L. Cardiorenal Syndrome: An Overview. Adv Chronic Kidney Dis 2018; 25:382-390. [PMID: 30309455 DOI: 10.1053/j.ackd.2018.08.004] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 08/12/2018] [Indexed: 02/06/2023]
Abstract
It is well established that a large number of patients with acute decompensated heart failure present with various degrees of heart and kidney dysfunction usually primary disease of heart or kidney often involve dysfunction or injury to the other. The term cardiorenal syndrome increasingly had been used without a consistent or well-accepted definition. To include the vast array of interrelated derangements and to stress the bidirectional nature of heart-kidney interactions, a new classification of the cardiorenal syndrome with 5 subtypes that reflect the pathophysiology, the time frame, and the nature of concomitant cardiac and renal dysfunction was proposed. Cardiorenal syndrome can generally be defined as a pathophysiological disorder of the heart and kidneys, in which acute or chronic dysfunction of one organ may induce acute or chronic dysfunction to the other. Although cardiorenal syndrome was usually referred to as acute kidney dysfunction following acute cardiac disease, it is now clearly established that impaired kidney function can have an adverse impact on cardiac function.
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23
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Chitturi C, Novak JE. Diuretics in the Management of Cardiorenal Syndrome. Adv Chronic Kidney Dis 2018; 25:425-433. [PMID: 30309460 DOI: 10.1053/j.ackd.2018.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 12/21/2022]
Abstract
The leading cause of death worldwide is cardiovascular disease. The heart and the kidneys are functionally interdependent, such that dysfunction in one organ may cause dysfunction in the other. By one estimate, more than 60% of patients with congestive heart failure develop chronic kidney disease. Volume overload and congestion are hallmarks of heart failure, and these findings are associated with severe symptoms and poor outcomes. Given the importance of congestion, diuretics remain a cornerstone of heart failure management. However, diuretic treatment remains largely empirical, with little evidence currently available to guide decisions. In this review, we discuss the pathophysiology of cardiorenal syndrome, the pharmacology of loop diuretics, mechanisms of diuretic resistance, and evidence-based treatment paradigms.
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24
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Luk A, Groarke JD, Desai AS, Mahmood SS, Gopal DM, Joyce E, Shah SP, Lindenfeld J, Stevenson L, Lakdawala NK. First spot urine sodium after initial diuretic identifies patients at high risk for adverse outcome after heart failure hospitalization. Am Heart J 2018; 203:95-100. [PMID: 29907406 DOI: 10.1016/j.ahj.2018.01.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 01/28/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Relief of congestion is the primary goal of initial therapy for acute decompensated heart failure (ADHF). Early measurement of urine sodium concentration (UNa) may be useful to identify patients with diminished response to diuretics. The aim of this study was to determine if the first spot UNa after diuretic initiation could select patients likely to require more intensive therapy during hospitalization. METHODS At the time of admission, 103 patients with ADHF were identified prospectively, and UNa was measured after the first dose of intravenous diuretic. Clinical outcomes were compared for patients with UNa >60 mmol/L and UNa of ≤60 mmol/L, with the primary outcome of a composite of death at 90 days, mechanical circulatory support during admission, and requirement of inotropic support at discharge. RESULTS Patients with UNa ≤60 had lower admission blood pressure, had less chronic neurohormonal antagonist prior to admission, and were more than twice as likely to experience the primary end point (hazard ratio 2.40, 95% CI 1.02-5.66, P = .045), which was marginally significant after adjusting for renal function and baseline home loop diuretic. Worsening renal function was significantly more common in patients with UNa <60 (23.6% vs 6.5%, P = .05). Although the initial assessment of congestion was similar at admission, patients with low early UNa had a longer length of stay (11 vs 6 days, P < .006) than patients with UNa >60. CONCLUSIONS Assessment of spot UNa after initial intravenous loop diuretic administration may facilitate identification and triage of a population of HF patients at increased risk for adverse events and prolonged hospitalization.
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Affiliation(s)
- Adriana Luk
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - John D Groarke
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Akshay S Desai
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Syed Saad Mahmood
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | | | | | - Sachin P Shah
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA; Lahey Hospital and Medical Center, Burlington, MA
| | | | - Lynne Stevenson
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA; Vanderbilt University Medical Center, Nashville, TN
| | - Neal K Lakdawala
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA.
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25
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Mavrakanas TA, Khattak A, Singh K, Charytan DM. Echocardiographic parameters and renal outcomes in patients with preserved renal function, and mild- moderate CKD. BMC Nephrol 2018; 19:176. [PMID: 29996910 PMCID: PMC6042465 DOI: 10.1186/s12882-018-0975-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 06/27/2018] [Indexed: 11/25/2022] Open
Abstract
Background Echocardiographic characteristics across the spectrum of chronic kidney disease (CKD) have not been well described. We assessed the echocardiographic characteristics of patients with preserved renal function and mild or moderate CKD referred for echocardiography and determined whether echocardiographic parameters of left ventricular (LV) and right ventricular (RV) structure and function were associated with changes in renal function and mortality. Methods This retrospective cohort study enrolled all adult patients who had at least one trans-thoracic echocardiography between 2004 and 2014 in our institution. The composite outcome of doubling of serum creatinine or initiation of maintenance dialysis or kidney transplantation was the primary outcome. Mortality was the secondary outcome. Results 29,219 patients were included. Patients with worse renal function had higher prevalence of structural and functional LV and RV abnormalities. Higher estimated glomerular filtration rate (eGFR) was independently associated with preserved LV ejection fraction, preserved RV systolic function, and lower LV mass, left atrial diameter, pulmonary artery pressure, and right atrial pressure, as well as normal RV structure. 1041 composite renal events were observed. 8780 patients died during the follow-up. Pulmonary artery pressure and the RV, but not the LV, echocardiographic parameters were independently associated with the composite renal outcome. In contrast, RV systolic function, RV dilation or hypertrophy, LV ejection fraction group, LV diameter quartile, and pulmonary artery pressure quartile were independently associated with all-cause mortality. Conclusions Echocardiographic abnormalities are frequent even in early CKD. Echocardiographic assessment particularly of the RV may provide useful information for the care of patients with CKD. Electronic supplementary material The online version of this article (10.1186/s12882-018-0975-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thomas A Mavrakanas
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA. .,Division of Nephrology, Department of Medicine, McGill University, Montreal, Canada.
| | - Aisha Khattak
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA.,Division of Renal Disease and Hypertension, Department of Internal Medicine, The University of Texas Health Science Center, Houston, TX, USA
| | - Karandeep Singh
- Departments of Learning Health Sciences and Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - David M Charytan
- Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
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26
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Efficacy of aliskiren supplementation for heart failure : A meta-analysis of randomized controlled trials. Herz 2018; 44:398-404. [PMID: 29470612 DOI: 10.1007/s00059-018-4679-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 01/13/2018] [Accepted: 01/14/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Aliskiren might be beneficial for heart failure. However, the results of various studies are controversial. We conducted a systematic review and meta-analysis to explore the efficacy of aliskiren supplementation for heart failure. METHODS PubMed, Embase, Web of Science, EBSCO, and the Cochrane Library databases were systematically searched. Randomized controlled trials (RCTs) assessing the efficacy of aliskiren for heart failure were included. Two investigators independently searched for articles, extracted data, and assessed the quality of included studies. The meta-analysis was performed using the random-effect model. RESULTS Five RCTs comprising 1973 patients were included in the meta-analysis. Compared with control interventions in heart failure, aliskiren supplementation was found to significantly reduce NT-proBNP levels (standardized mean difference [SMD] = -0.12; 95% CI = -0.21 to -0.03 pg/ml; p = 0.008) and plasma renin activity (SMD = -0.66; 95% CI = -0.89 to -0.44 ng/ml.h; p < 0.00001) while increasing plasma renin concentration (SMD = 0.52; 95% CI = 0.30-0.75 ng/l; p < 0.00001); however, it demonstrated no significant influence on BNP levels (SMD = -0.08; 95% CI = -0.31-0.15 pg/ml; p = 0.49), mortality (RR = 0.97; 95% CI = 0.79-1.20; p = 0.79), aldosterone levels (SMD = -0.09; 95% CI = -0.32-0.14 pmol/l; p = 0.44), adverse events (RR = 3.03; 95% CI = 0.18-49.51; p = 0.44), and serious adverse events (RR = 1.34; 95% CI = 0.54-3.33; p = 0.53). CONCLUSION Aliskiren supplementation was found to significantly decrease NT-proBNP levels and plasma renin activity and to improve plasma renin concentration in the setting of heart failure.
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27
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Xu M, Jiang T, Zhou Y, Yang X. Influence of echocardiographic measurements and renal impairments on the prognosis of fulminant myocarditis. Medicine (Baltimore) 2018; 97:e9812. [PMID: 29384884 PMCID: PMC5805456 DOI: 10.1097/md.0000000000009812] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Fulminant myocarditis is a severe cardiac emergency that may lead to death if effective cardiopulmonary supports are not provided. This study aimed to evaluate the prognostic predictors in patients with fulminant myocarditis.We retrospectively analyzed the clinical characteristics, complications, laboratory findings, treatments, as well as electrocardiographic and echocardiographic data of 73 consecutive subjects diagnosed with fulminant myocarditis from June 2012 to June 2016. Logistic regression analysis was used to identify the independent predictive factors of nonsurvivor fulminant myocarditis.Ten patients and 63 patients were assigned to the nonsurvivor and survivor fulminant myocarditis groups, respectively. Patients in the nonsurvivor fulminant myocarditis group had higher heart rates; were more likely to develop clinical complications and supraventricular tachycardia (SVT); and had higher serum creatinine (Scr) level, and had higher white blood cell (WBC) counts, and lower abbreviated estimated glomerular filtration rates (eGFR) than the patients in the survivor fulminant myocarditis group. Moreover, we observed larger left atrium dimension (LAd), larger left ventricular end systolic dimensions, and lower left ventricular ejection fraction in the patients from the nonsurvivor fulminant myocarditis group than in those from the other group. A logistic regression model was constructed and demonstrated that eGFR and LAd were 2 independent predictors of mortality in patients with fulminant myocarditis.Higher heart rates, higher incidences of clinical complication, SVT, higher admission levels of Scr and eGFR, higher WBC counts, higher Scr and eGFR at stage of most severe renal damage, and abnormal echocardiographic findings were associated with high risk of mortality in patients with fulminant myocarditis. The major finding was that eGFR and LAd were independent predictors for in-hospital mortality in patients with fulminant myocarditis.
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28
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Hultström M, Becirovic-Agic M, Jönsson S. Comparison of acute kidney injury of different etiology reveals in-common mechanisms of tissue damage. Physiol Genomics 2017; 50:127-141. [PMID: 29341864 DOI: 10.1152/physiolgenomics.00037.2017] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Acute kidney injury (AKI) is a syndrome of reduced glomerular filtration rate and urine production caused by a number of different diseases. It is associated with renal tissue damage. This tissue damage can cause tubular atrophy and interstitial fibrosis that leads to nephron loss and progression of chronic kidney disease (CKD). This review describes the in-common mechanisms behind tissue damage in AKI caused by different underlying diseases. Comparing six high-quality microarray studies of renal gene expression after AKI in disease models (gram-negative sepsis, gram-positive sepsis, ischemia-reperfusion, malignant hypertension, rhabdomyolysis, and cisplatin toxicity) identified 5,254 differentially expressed genes in at least one of the AKI models; 66% of genes were found only in one model, showing that there are unique features to AKI depending on the underlying disease. There were in-common features in the form of four genes that were differentially expressed in all six models, 49 in at least five, and 215 were found in common between at least four models. Gene ontology enrichment analysis could be broadly categorized into the injurious processes hypoxia, oxidative stress, and inflammation, as well as the cellular outcomes of cell death and tissue remodeling in the form of epithelial-to-mesenchymal transition. Pathway analysis showed that MYC is a central connection in the network of activated genes in-common to AKI, which suggests that it may be a central regulator of renal gene expression in tissue injury during AKI. The outlining of this molecular network may be useful for understanding progression from AKI to CKD.
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Affiliation(s)
- Michael Hultström
- Integrative Physiology, Department of Medical Cell Biology, Uppsala University , Uppsala , Sweden.,Anaesthesia and Intensive Care Medicine, Department of Surgical Sciences, Uppsala University , Uppsala , Sweden
| | - Mediha Becirovic-Agic
- Integrative Physiology, Department of Medical Cell Biology, Uppsala University , Uppsala , Sweden
| | - Sofia Jönsson
- Integrative Physiology, Department of Medical Cell Biology, Uppsala University , Uppsala , Sweden
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29
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Yao W, Wang N, Qian J, Bai L, Zheng X, Hou G, Qiu X, Yang B. Renal sympathetic denervation improves myocardial apoptosis in rats with isoproterenol-induced heart failure by downregulation of tumor necrosis factor-α and nuclear factor-κB. Exp Ther Med 2017; 14:4104-4110. [PMID: 29104628 PMCID: PMC5658694 DOI: 10.3892/etm.2017.5066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 02/14/2017] [Indexed: 12/29/2022] Open
Abstract
Chronic congestive heart failure (CHF) is the end outcome of organic heart diseases and one of the major diseases harmful to human health. Renal sympathetic denervation (RSD) is the anatomical basis of transcatheter renal sympathetic nerve ablation within the renal artery. To date, the roles of norepinephrine and angiotensin II (Ang II) in myocardial apoptosis and their underlying mechanisms have not been well explored. The aim of the present study was to verify the hypothesis that RSD is likely to inhibit myocardial apoptosis by inhibiting the release of norepinephrine and Ang II. An isoproterenol-induced CHF rat model was established, and the effects of RSD on myocardial apoptosis were examined using flow cytometry and TUNEL staining. The expression of factors associated with myocardial apoptosis, including p53, tumor necrosis factor-α (TNF-α), nuclear factor-κB (NF-κB), caspase-2 and −3, were measured using quantitative polymerase chain reaction and western blot analysis. The results indicated that the mRNA levels of p53, TNF-α, NF-κB, caspase-2 and −3 were significantly reduced in the myocardial tissues of rats in the CHF+RSD group when compared with the levels in the CHF+sham group (P<0.01 for all). In addition, the protein levels of p53, TNF-α, NF-κB and caspases-2 and −3 were decreased by 42.6, 41.3, 46.7, 30.0 and 35.8%, respectively, in myocardial tissues of rats in the CHF+RSD group in comparison with the CHF+sham group (P<0.01 for all). Furthermore, myocardial apoptosis was improved in rats in the CHF+RSD group compared with that in the CHF+sham group (P<0.01). In conclusion, the present study provides a theoretical basis for application of RSD in the treatment of CHF.
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Affiliation(s)
- Wei Yao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Neng Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jin Qian
- Department of Cardiology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441300, P.R. China
| | - Lu Bai
- Department of Cardiology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441300, P.R. China
| | - Xiaoxin Zheng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Guo Hou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xuan Qiu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Bo Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.,Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Extracorporeal Ultrafiltration for Fluid Overload in Heart Failure: Current Status and Prospects for Further Research. J Am Coll Cardiol 2017; 69:2428-2445. [PMID: 28494980 PMCID: PMC5632523 DOI: 10.1016/j.jacc.2017.03.528] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 01/18/2023]
Abstract
More than 1 million heart failure hospitalizations occur annually, and congestion is the predominant cause. Rehospitalizations for recurrent congestion portend poor outcomes independently of age and renal function. Persistent congestion trumps serum creatinine increases in predicting adverse heart failure outcomes. No decongestive pharmacological therapy has reduced these harmful consequences. Simplified ultrafiltration devices permit fluid removal in lower-acuity hospital settings, but with conflicting results regarding safety and efficacy. Ultrafiltration performed at fixed rates after onset of therapy-induced increased serum creatinine was not superior to standard care and resulted in more complications. In contrast, compared with diuretic agents, some data suggest that adjustment of ultrafiltration rates to patients’ vital signs and renal function may be associated with more effective decongestion and fewer heart failure events. Essential aspects of ultrafiltration remain poorly defined. Further research is urgently needed, given the burden of congestion and data suggesting sustained benefits of early and adjustable ultrafiltration.
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31
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Grande D, Terlizzese P, Iacoviello M. Role of imaging in the evaluation of renal dysfunction in heart failure patients. World J Nephrol 2017; 6:123-131. [PMID: 28540202 PMCID: PMC5424434 DOI: 10.5527/wjn.v6.i3.123] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/13/2016] [Accepted: 03/02/2017] [Indexed: 02/06/2023] Open
Abstract
Heart failure and kidney disease share common pathophysiological pathways which can lead to mutual dysfunction, known as cardiorenal syndrome. In heart failure patients, renal impairment is related to hemodynamic and non-hemodynamic factors. Both decreased renal blood flow and renal venous congestion due to heart failure could lead to impaired renal function. Kidney disease and worsening renal function are independently associated with poor prognosis in heart failure patients, both in acute and chronic clinical settings. The aim of this review is to assess the role of renal imaging modalities in the evaluation and management of heart failure patients. Renal imaging techniques could complete laboratory data, as estimated glomerular filtration rate, exploring different pathophysiological factors involved in kidney disease and adding valuable information about renal structure and function. In particular, Doppler examination of arterial and venous hemodynamics is a feasible and non invasive technique, which has proven to be a reliable method for prognostic stratification in patients with cardiorenal syndrome. The renal resistance index, a measure related to renal hemodynamics, can be calculated from the Doppler evaluation of arterial flow. Moreover, the analysis of Doppler venous flow patterns can integrate information from the arterial study and evaluate renal congestion. Other imaging modalities are promising, but still confined to research purposes.
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Di Lullo L, Bellasi A, Barbera V, Russo D, Russo L, Di Iorio B, Cozzolino M, Ronco C. Pathophysiology of the cardio-renal syndromes types 1-5: An uptodate. Indian Heart J 2017; 69:255-265. [PMID: 28460776 PMCID: PMC5415026 DOI: 10.1016/j.ihj.2017.01.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 12/06/2016] [Accepted: 01/10/2017] [Indexed: 12/19/2022] Open
Abstract
According to the recent definition proposed by the Consensus conference on Acute Dialysis Quality Initiative Group, the term cardio-renal syndrome (CRS) has been used to define different clinical conditions in which heart and kidney dysfunction overlap. Type 1 CRS (acute cardio- renal syndrome) is characterized by acute worsening of cardiac function leading to AKI (5, 6) in the setting of active cardiac disease such as ADHF, while type - 2 CRS occurs in a setting of chronic heart disease. Type 3 CRS is closely link to acute kidney injury (AKI), while type 4 represent cardiovascular involvement in chronic kidney disese (CKD) patients. Type 5 CRS represent cardiac and renal involvement in several diseases such as sepsis, hepato - renal syndrome and immune - mediated diseases.
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Affiliation(s)
- L Di Lullo
- Department of Nephrology and Dialysis, L. Parodi - Delfino Hospital, Colleferro Rome, Italy.
| | - A Bellasi
- Department of Nephrology and Dialysis, S. Anna Hospital, Como, Italy
| | - V Barbera
- Department of Nephrology and Dialysis, L. Parodi - Delfino Hospital, Colleferro Rome, Italy
| | - D Russo
- Division of Nephrology, University of Naples "Federico II", Napoli, Italy
| | - L Russo
- Division of Nephrology, University of Naples "Federico II", Napoli, Italy
| | - B Di Iorio
- Department of Nephrology and Dialysis, A. Landolfi Hospital, Solofra, Avellino, Italy
| | - M Cozzolino
- Department of Health Sciences, Renal Division, San Paolo Hospital, University of Milan, Italy
| | - C Ronco
- International Renal Research Institute, S. Bortolo Hospital, Vicenza, Italy
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Cheah HY, Kiew LV, Lee HB, Japundžić-Žigon N, Vicent MJ, Hoe SZ, Chung LY. Preclinical safety assessments of nano-sized constructs on cardiovascular system toxicity: A case for telemetry. J Appl Toxicol 2017; 37:1268-1285. [DOI: 10.1002/jat.3437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/14/2016] [Accepted: 12/14/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Hoay Yan Cheah
- Department of Pharmacology, Faculty of Medicine; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Lik Voon Kiew
- Department of Pharmacology, Faculty of Medicine; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Hong Boon Lee
- Department of Pharmacy, Faculty of Medicine; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Nina Japundžić-Žigon
- Institute of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine; University of Belgrade; Republic of Serbia
| | - Marίa J. Vicent
- Polymer Therapeutics Lab; Centro de Investigación Príncipe Felipe; Av. Eduardo Primo Yúfera 3 E-46012 Valencia Spain
| | - See Ziau Hoe
- Department of Physiology, Faculty of Medicine; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Lip Yong Chung
- Department of Pharmacy, Faculty of Medicine; University of Malaya; 50603 Kuala Lumpur Malaysia
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Han SS, Park S, Kang SH, Cho GY, Kim DK, Kim S, Chin HJ, Chae DW, Na KY. Usefulness of Preoperative Echocardiography to Predict Acute Kidney Injury and Long-Term Mortality After Coronary Artery Bypass Grafting. Am J Cardiol 2017; 119:231-236. [PMID: 27839773 DOI: 10.1016/j.amjcard.2016.09.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/19/2016] [Accepted: 09/19/2016] [Indexed: 11/17/2022]
Abstract
Acute kidney injury (AKI) is a common complication in patients undergoing coronary artery bypass grafting (CABG), which is associated with significant morbidity and mortality. This study identified echocardiographic predictors of AKI and determined whether these predictors were related to long-term mortality in CABG. This retrospective cohort study included 1,300 patients who underwent echocardiography before CABG at 2 tertiary referral centers from 2004 to 2010. The best echocardiographic predictor of AKI was determined using multivariate and stepwise selection methods. Patients were followed for 72 ± 28.8 months (maximum 11 years) for all-cause mortality. We measured the adjusted odds ratio and hazard ratio for AKI and all-cause mortality, respectively, according to the chosen parameter. E/e' was the best predictor of AKI among echocardiographic parameters. The high E/e' group (>15) exhibited a greater odds ratio for AKI (2.2 [1.51 to 3.27]) than the low E/e' group (<8). The high E/e' group required a longer hospital stay (16 days [12 to 23 days]) than the low E/e' group (14 days [11 to 17 days]). There were 272 deaths (21%) during follow-up. The high E/e' group exhibited a greater hazard ratio for long-term mortality (1.9 [1.34 to 2.76]) than the low E/e' group, and this difference remained statistically significant regardless of the occurrence of AKI and the size of the ejection fraction volume. E/e' in preoperative echocardiography is the best predictor of AKI and long-term mortality in patients undergoing CABG.
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Affiliation(s)
- Seung Seok Han
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Seokwoo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Si-Hyuck Kang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Goo-Yeong Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Dong Ki Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sejoong Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Ho Jun Chin
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Dong-Wan Chae
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Ki Young Na
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea.
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Abstract
Kidney disease is commonly found in heart failure (HF) patients. They share many risk factors and common pathophysiological pathways which often lead to mutual dysfunction. Both haemodynamic and non-haemodynamic mechanisms are involved in the development of renal impairment in heart failure patients. Moreover, the presence of a chronic kidney disease is a significant independent predictor of worse outcome in chronic as well as in acute decompensated HF. As a consequence, an accurate evaluation of renal function plays a key role in the management of HF patients. Serum creatinine levels and glomerular filtration rate (GFR) estimates are the corner stones of renal function evaluation in clinical practice. However, to overcome their limits, several emerging glomerular and tubular biomarkers have been proposed over the last years. Alongside the renal biomarkers, imaging techniques could complement the laboratory data exploring different pathophysiological pathways. In particular, Doppler evaluation of renal circulation is a highly feasible technique that can effectively identify HF patients prone to develop renal dysfunction and with a worse outcome. Finally, some classes of drugs currently used in heart failure treatment can affect renal function and their use can be influenced by the presence of chronic kidney disease.
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Rezaienia MA, Paul G, Avital EJ, Mozafari S, Rothman M, Korakianitis T. In-vitro investigation of the hemodynamic responses of the cerebral, coronary and renal circulations with a rotary blood pump installed in the descending aorta. Med Eng Phys 2016; 40:2-10. [PMID: 28040435 DOI: 10.1016/j.medengphy.2016.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 11/02/2016] [Accepted: 11/13/2016] [Indexed: 02/08/2023]
Abstract
This study investigates the hemodynamic responses of the cardiovascular system when a rotary blood pump is operating in the descending aorta, with a focus on the cerebral, coronary and renal autoregulation, using our in-house cardiovascular emulator. Several improvements have been made from our previous studies. A novel coronary system was developed to replicate the native coronary perfusion. Three pinch valves actuated by stepper motors were used to simulate the regional autoregulation systems of the native cerebral, coronary and renal circulations. A rotary pump was installed in the descending aorta, in series with the heart, and the hemodynamic responses of the cardiovascular system were investigated with a focus on cerebral, coronary and renal circulation over a wide range of pump rotor speeds. Experiments were performed twice, once with the autoregulation systems active and once with the autoregulation systems inactive, to reflect that there will be some impairment of autoregulatory systems in a patient with heart failure. It was shown that by increasing the rotor speed to 3000 rpm, the cardiac output was improved from 2.9 to 4.1 L/min as a result of an afterload reduction induced by the pressure drop upstream of the pump. The magnitudes of changes in perfusion in the cerebral, coronary and renal circulations were recorded with regional autoregulation systems active and inactive.
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Affiliation(s)
- M A Rezaienia
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - G Paul
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - E J Avital
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - S Mozafari
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - M Rothman
- Department of Cardiology, London Chest Hospital, Barts and the London NHS Trust, London E2 9JX, UK
| | - T Korakianitis
- Parks College of Engineering, Aviation and Technology, Saint Louis University, St. Louis, Missouri 63103, USA.
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Iacoviello M, Monitillo F, Leone M, Citarelli G, Doronzo A, Antoncecchi V, Puzzovivo A, Rizzo C, Lattarulo MS, Massari F, Caldarola P, Ciccone MM. The Renal Arterial Resistance Index Predicts Worsening Renal Function in Chronic Heart Failure Patients. Cardiorenal Med 2016; 7:42-49. [PMID: 27994601 DOI: 10.1159/000448405] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 07/05/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND/AIM The renal arterial resistance index (RRI) is a Doppler measure, which reflects abnormalities in the renal blood flow. The aim of this study was to verify the value of RRI as a predictor of worsening renal function (WRF) in a group of chronic heart failure (CHF) outpatients. METHODS We enrolled 266 patients in stable clinical conditions and on conventional therapy. Peak systolic velocity and end diastolic velocity of a segmental renal artery were obtained by pulsed Doppler flow, and RRI was calculated. Creatinine serum levels were evaluated at baseline and at 1 year, and the changes were used to assess WRF occurrence. RESULTS During follow-up, 34 (13%) patients showed WRF. RRI was associated with WRF at univariate (OR: 1.13; 95% CI: 1.07-1.20) as well as at a forward stepwise multivariate logistic regression analysis (OR: 1.09; 95% CI: 1.03-1.16; p = 0.005) including the other univariate predictors. CONCLUSIONS Quantification of arterial renal perfusion provides a new parameter that independently predicts the WRF in CHF outpatients. Its possible role in current clinical practice to better define the risk of cardiorenal syndrome progression is strengthened.
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Affiliation(s)
- Massimo Iacoviello
- Cardiology Unit, Cardiothoracic Department, Policlinic University Hospital, Bari, Italy
| | | | - Marta Leone
- School of Cardiology, University of Bari, Bari, Italy
| | | | | | | | - Agata Puzzovivo
- Cardiology Department, Bari Local Health Service, Bari, Italy
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Costanzo MR, Negoianu D, Jaski BE, Bart BA, Heywood JT, Anand IS, Smelser JM, Kaneshige AM, Chomsky DB, Adler ED, Haas GJ, Watts JA, Nabut JL, Schollmeyer MP, Fonarow GC. Aquapheresis Versus Intravenous Diuretics and Hospitalizations for Heart Failure. JACC-HEART FAILURE 2016; 4:95-105. [DOI: 10.1016/j.jchf.2015.08.005] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 08/25/2015] [Accepted: 08/25/2015] [Indexed: 02/08/2023]
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Costanzo MR. Verdict In. JACC-HEART FAILURE 2015; 3:762-4. [DOI: 10.1016/j.jchf.2015.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 06/23/2015] [Indexed: 11/28/2022]
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Effect of additive renin inhibition with aliskiren on renal blood flow in patients with Chronic Heart Failure and Renal Dysfunction (Additive Renin Inhibition with Aliskiren on renal blood flow and Neurohormonal Activation in patients with Chronic Heart Failure and Renal Dysfunction). Am Heart J 2015; 169:693-701.e3. [PMID: 25965717 DOI: 10.1016/j.ahj.2014.12.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Accepted: 12/17/2014] [Indexed: 11/24/2022]
Abstract
AIMS We examined the effect of the renin inhibitor, aliskiren, on renal blood flow (RBF) in patients with heart failure with reduced ejection fraction (HFREF) and decreased glomerular filtration rate (GFR). Renal blood flow is the main determinant of GFR in HFREF patients. Both reduced GFR and RBF are associated with increased mortality. Aliskiren can provide additional renin-angiotensin-aldosterone system inhibition and increases RBF in healthy individuals. METHODS AND RESULTS Patients with left ventricular ejection fraction ≤45% and estimated GFR 30 to 75 mL/min per 1.73 m(2) on optimal medical therapy were randomized 2:1 to receive aliskiren 300 mg once daily or placebo. Renal blood flow and GFR were measured using radioactive-labeled (125)I-iothalamate and (131)I-hippuran at baseline and 26 weeks. After 41 patients were included, the trial was halted based on an interim safety analysis showing futility. Mean age was 68 ± 9 years, 82% male, GFR (49 ± 16 mL/min per 1.73 m(2)), RBF (294 ± 77 mL/min per 1.73 m(2)), and NT-proBNP 999 (435-2040) pg/mL. There was a nonsignificant change in RBF after 26 weeks in the aliskiren group compared with placebo (-7.1 ± 30 vs +14 ± 54 mL/min per 1.73 m(2); P = .16). However, GFR decreased significantly in the aliskiren group compared with placebo (-2.8 ± 6.0 vs +4.4 ± 9.6 mL/min per 1.73 m(2); P = .01) as did filtration fraction (-2.2 ± 3.3 vs +1.1 ± 3.1%; P = .01). There were no significant differences in plasma aldosterone, NT-proBNP, urinary tubular markers, or adverse events. Plasma renin activity was markedly reduced in the aliskiren group versus placebo throughout the treatment phase (P = .007). CONCLUSIONS Adding aliskiren on top of optimal HFREF medical therapy did not improve RBF and was associated with a reduction of GFR and filtration fraction.
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Iacoviello M, Doronzo A, Paradies V, Antoncecchi V, Monitillo F, Citarelli G, Leone M, Puzzovivo A, Gesualdo L, Ciccone MM. The independent association between altered renal arterial resistance and loop diuretic dose in chronic heart failure outpatients. IJC HEART & VASCULATURE 2015; 7:119-123. [PMID: 28785659 PMCID: PMC5497238 DOI: 10.1016/j.ijcha.2015.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 03/17/2015] [Accepted: 03/18/2015] [Indexed: 01/18/2023]
Abstract
Background In chronic heart failure (CHF) patients there is a wide variability in the minimal effective diuretic dose. The aim of this study is to evaluate whether renal resistance index (RRI) is associated to baseline diuretic dose and the changes at one year. Methods and results 250 outpatients in a stable condition and in conventional therapy were enrolled. Baseline RRI was calculated by renal arterial Doppler. The total daily dose of loop diuretics was assessed at baseline and after one year. High diuretic dose (HDD) was defined as a daily furosemide equivalent dose > 100 mg. RRI was independently associated with baseline HDD at univariate (OR 1.39; 95% CI: 1.233–1.58; p < 0.001) and multivariate analysis (OR 1.27; 95% CI: 1.09–1.49; p: 0.002) after correction for other univariate predictors (age, NYHA class, left ventricular ejection fraction, tricuspid annulus peak of systolic excursion, NT-proBNP, glomerular filtration rate by EPI formula and central venous pressure). Moreover, baseline RRI was independently associated to one year stable increase in loop diuretic dose at univariate and multivariate regression analyses. Conclusions RRI is independently associated with high dose loop diuretics and their increase during a mid-term follow-up thus suggesting its usefulness in detecting an altered diuretic response in CHF outpatients.
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Affiliation(s)
- Massimo Iacoviello
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Annalisa Doronzo
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Valeria Paradies
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Valeria Antoncecchi
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Francesco Monitillo
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Gaetano Citarelli
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Marta Leone
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Agata Puzzovivo
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Loreto Gesualdo
- Nephrology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Marco Matteo Ciccone
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
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Verbrugge FH, Grieten L, Mullens W. Management of the cardiorenal syndrome in decompensated heart failure. Cardiorenal Med 2015; 4:176-88. [PMID: 25737682 DOI: 10.1159/000366168] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The management of the cardiorenal syndrome (CRS) in decompensated heart failure (HF) is challenging, with high-quality evidence lacking. SUMMARY The pathophysiology of CRS in decompensated HF is complex, with glomerular filtration rate (GFR) and urine output representing different aspects of kidney function. GFR depends on structural factors (number of functional nephrons and integrity of the glomerular membrane) versus hemodynamic alterations (volume status, renal perfusion, arterial blood pressure, central venous pressure or intra-abdominal pressure) and neurohumoral activation. In contrast, urine output and volume homeostasis are mainly a function of the renal tubules. Treatment of CRS in decompensated HF patients should be individualized based on the underlying pathophysiological processes. KEY MESSAGES Congestion, defined as elevated cardiac filling pressures, is not a surrogate for volume overload. Transient decreases in GFR might be accepted during decongestion, but hypotension must be avoided. Paracentesis and compression therapy are essential to remove fluid overload from third spaces. Increasing the effective circulatory volume improves renal function when cardiac output is depressed. As mechanical support is invasive and inotropes are related to increased mortality, afterload reduction through vasodilator therapy remains the preferred strategy in patients who are normo- or hypertensive. Specific therapies to augment renal perfusion (rolofylline, dopamine or nesiritide) have rendered disappointing results, but recently, serelaxin has been shown to improve renal function, even with a trend towards reduced all-cause mortality in selected patients. Diuretic resistance is associated with worse outcomes, independent of the underlying GFR. Combinational diuretic therapy, with ultrafiltration as a bail-out strategy, is indicated in case of diuretic resistance.
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Affiliation(s)
- Frederik Hendrik Verbrugge
- Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium ; Doctoral School for Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium
| | - Lars Grieten
- Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium ; Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium
| | - Wilfried Mullens
- Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium ; Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium
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Heringlake M, Nowak Y, Schön J, Trautmann J, Berggreen AE, Charitos EI, Paarmann H. Postoperative intubation time is associated with acute kidney injury in cardiac surgical patients. Crit Care 2014; 18:547. [PMID: 25277725 PMCID: PMC4209080 DOI: 10.1186/s13054-014-0547-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 09/17/2014] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Acute kidney injury (AKI) is a frequent complication after cardiac surgery and is associated with a poor prognosis. Mechanical ventilation is an important risk factor for developing AKI in critically ill patients. Ventilation with high tidal volumes has been associated with postoperative organ dysfunction in cardiac surgical patients. No data are available about the effects of the duration of postoperative respiratory support in the immediate postoperative period on the incidence of AKI in patients after cardiac surgery. METHOD We performed a secondary analysis of 584 elective cardiac surgical patients enrolled in an observational trial on the association between preoperative cerebral oxygen saturation and postoperative organ dysfunction and analyzed the incidence of AKI in patients with different times to extubation. The latter variable was graded in 4 h intervals (if below 16 h) or equal to or greater than 16 h. AKI was staged according to the AKI Network criteria. RESULTS Overall, 165 (28.3%) patients developed AKI (any stage), 43 (7.4%) patients needed renal replacement therapy. Patients developing AKI had a significantly (P <0.001) lower renal perfusion pressure (RPP) in the first 8 hours after surgery (57.4 mmHg (95% CI: 56.0 to 59.0 mmHg)) than patients with a postoperatively preserved renal function (60.5 mmHg ((95% CI: 59.9 to 61.4 mmHg). The rate of AKI increased from 17.0% in patients extubated within 4 h postoperatively to 62.3% in patients ventilated for more than 16 h (P <0.001). Multivariate logistic regression analysis of variables significantly associated with AKI in the univariate analysis revealed that the time to the first extubation (OR: 1.024/hour, 95% CI: 1.011 to 1.044/hour; P <0.001) and RPP (OR: 0.963/mmHg; 95% CI: 0.934 to 0.992; P <0.001) were independently associated with AKI. CONCLUSION Without taking into account potentially unmeasured confounders, these findings are suggestive that the duration of postoperative positive pressure ventilation is an important and previously unrecognized risk factor for AKI in cardiac surgical patients, independent from low RPP as an established AKI trigger, and that even a moderate delay of extubation increases AKI risk. If replicated independently, these findings may have relevant implications for clinical care and for further studies aiming at the prevention of cardiac surgery associated AKI.
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Kazory A, Elkayam U. Cardiorenal interactions in acute decompensated heart failure: contemporary concepts facing emerging controversies. J Card Fail 2014; 20:1004-11. [PMID: 25230240 DOI: 10.1016/j.cardfail.2014.09.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 09/07/2014] [Accepted: 09/08/2014] [Indexed: 12/17/2022]
Abstract
Simultaneous dysfunction of the heart and the kidney represents a distinct spectrum of disease states composed of complex clinical scenarios with adverse outcomes. Worsening renal function (WRF) in the setting of acute decompensated heart failure (ADHF) is one such clinical setup for which the underlying mechanisms are poorly understood. Apparent discrepancies exist between the emerging data on the cardiorenal interactions of patients with ADHF and contemporary concepts such as the low forward flow or the high backward pressure hypotheses. The findings of recent retrospective studies also suggest that apparent "improvement in renal function" might be yet another risk factor for untoward outcomes in this patient population, further challenging our current understanding of the cardiorenal interactions. Besides, these data do not seem to fully support our conventional thinking about other aspects of these interactions such as the independent adverse impact of WRF on the outcomes of patients with ADHF, pointing to congestion as a possibly overlooked factor. In this article, we provide an overview of these emerging controversial issues with the goal of identifying the areas where clinical research could be most helpful, because it is of paramount importance to characterize the pathways leading to WRF in ADHF to develop a mechanistically relevant management strategy. Although the paucity of data coupled with the complexity of this field precludes any firm conclusion, these discussions are meant to prompt clinicians and researchers to revisit a number of long-believed concepts surrounding the cardiorenal interactions in ADHF.
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Affiliation(s)
- Amir Kazory
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, Florida.
| | - Uri Elkayam
- Department of Medicine, Division of Cardiovascular Medicine, University of Southern California, Los Angeles, California
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Inohara T, Kohsaka S, Sato N, Kajimoto K, Keida T, Mizuno M, Takano T. Prognostic impact of renal dysfunction does not differ according to the clinical profiles of patients: insight from the acute decompensated heart failure syndromes (ATTEND) registry. PLoS One 2014; 9:e105596. [PMID: 25197833 PMCID: PMC4157767 DOI: 10.1371/journal.pone.0105596] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 07/22/2014] [Indexed: 11/19/2022] Open
Abstract
Background Renal dysfunction associated with acute decompensated heart failure (ADHF) is associated with impaired outcomes. Its mechanism is attributed to renal arterial hypoperfusion or venous congestion, but its prognostic impact based on each of these clinical profiles requires elucidation. Methods and Results ADHF syndromes registry subjects were evaluated (N = 4,321). Logistic regression modeling calculated adjusted odds ratios (OR) for in-hospital mortality for patients with and without renal dysfunction. Renal dysfunction risk was calculated for subgroups with hypoperfusion-dominant (eg. cold extremities, a low mean blood pressure or a low proportional pulse pressure) or congestion-dominant clinical profiles (eg. peripheral edema, jugular venous distension, or elevated brain natriuretic peptide) to evaluate renal dysfunction's prognostic impact in the context of the two underlying mechanisms. On admission, 2,150 (49.8%) patients aged 73.3±13.6 years had renal dysfunction. Compared with patients without renal dysfunction, those with renal dysfunction were older and had dominant ischemic etiology jugular venous distension, more frequent cold extremities, and higher brain natriuretic peptide levels. Renal dysfunction was associated with in-hospital mortality (OR 2.36; 95% confidence interval 1.75–3.18, p<0.001), and the prognostic impact of renal dysfunction was similar in subgroup of patients with hypoperfusion- or congestion-dominant clinical profiles (p-value for the interaction ranged from 0.104–0.924, and was always >0.05). Conclusions Baseline renal dysfunction was significantly associated with in-hospital mortality in ADHF patients. The prognostic impact of renal dysfunction was the same, regardless of its underlying etiologic mechanism.
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Affiliation(s)
- Taku Inohara
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Shun Kohsaka
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
- * E-mail:
| | - Naoki Sato
- Internal Medicine, Cardiology and Intensive Care Unit, Nippon Medical School Musashi-Kosugi Hospital, Kanagawa, Japan
| | | | - Takehiko Keida
- Department of Cardiology, Edogawa Hospital, Tokyo, Japan
| | - Masayuki Mizuno
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Teruo Takano
- Department of Internal Medicine, Nippon Medical University, Tokyo, Japan
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Sani MU, Davison BA, Cotter G, Sliwa K, Edwards C, Liu L, Damasceno A, Mayosi BM, Ogah OS, Mondo C, Dzudie A, Ojji DB, Voors AA. Renal dysfunction in African patients with acute heart failure. Eur J Heart Fail 2014; 16:718-28. [DOI: 10.1002/ejhf.103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 03/10/2014] [Accepted: 03/14/2014] [Indexed: 11/07/2022] Open
Affiliation(s)
- Mahmoud U. Sani
- Department of Medicine; Bayero University Kano/Aminu Kano Teaching Hospital; Kano Nigeria
| | | | - Gad Cotter
- Momentum Research, Inc.; Durham North Carolina USA
| | - Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences; University of Cape Town; South Africa
| | | | - Licette Liu
- Department of Cardiology; University of Groningen; Groningen the Netherlands
| | | | - Bongani M Mayosi
- Department of Medicine; GF Jooste and Groote Schuur Hospitals, Hospital, University of Cape Town; Cape Town South Africa
| | - Okechukwu S. Ogah
- Department of Medicine; University College Hospital Ibadan and Ministry of Health; Abia State Nigeria
| | | | - Anastase Dzudie
- Department of Internal Medicine; Douala General Hospital and Buea Faculty of Health Sciences; Douala Cameroon
| | - Dike B. Ojji
- Department of Medicine; University of Abuja Teaching Hospital; Abuja Nigeria
| | - Adrian A. Voors
- Department of Cardiology; University of Groningen; Groningen the Netherlands
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Abstract
Descriptions of the pathophysiology of heart failure have gone through a substantial evolution in the last 50 years. It is now recognised that heart failure can occur in the presence and also in the absence of a reduction in left ventricular function. In the former situation, this classically has been described to lead to hypotension and secondary salt and volume retention by the kidneys, further aggravating cardiac function. In the latter, this has been described to lead to pulmonary congestion because of impaired cardiac diastolic filling. These concepts have further evolved in the discrimination of 'acute vascular' versus 'acute congestive' heart failure. The current paper builds the argument from numerous smaller observational studies that irrespective of the clinical presentation of heart failure, fluid congestion is the key. If left ventricular function is preserved, fluid retention is probably due to the inability of damaged kidneys to excrete the large amounts of salt ingested with modern diet. In the extreme of end-stage renal disease requiring haemodialysis, heart failure is frequent, but can be prevented almost entirely by strict volume control. Unfortunately, the absence of systematic studies describing fluid volumes and renal haemodynamic and reabsorptive function in patients with acute heart failure precludes the final proof of our concept. This paper therefore is a strong call for mechanistic research in this area.
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Affiliation(s)
- Evert J Dorhout Mees
- Emeritus Professor of Medicine/Nephrology, Utrecht University, Oude Zutphenseweg 3, 7251HL Vorden, The Netherlands.
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Abstract
Cardiorenal syndrome (CRS) includes a broad spectrum of diseases within which both the heart and kidneys are involved, acutely or chronically. An effective classification of CRS in 2008 essentially divides CRS in two main groups, cardiorenal and renocardiac CRS, based on primum movens of disease (cardiac or renal); both cardiorenal and renocardiac CRS are then divided into acute and chronic, according to onset of disease. The fifth type of CRS integrates all cardiorenal involvement induced by systemic disease. This article addresses the pathophysiology, diagnosis, treatment, and outcomes of the 5 distinct types of CRS.
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Affiliation(s)
- Claudio Ronco
- International Renal Research Institute, S. Bortolo Hospital, Viale F. Ridolfi 37, Vicenza 36100, Italy
| | - Luca Di Lullo
- Department of Nephrology and Dialysis, L. Parodi-Delfino Hospital, Piazza A. Moro, Colleferro, Roma 1-00034, Italy.
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Braam B. Advancement in integrated models of renal function: closing the gap between simulation and real life. Am J Physiol Renal Physiol 2014; 306:F284-5. [DOI: 10.1152/ajprenal.00560.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Branko Braam
- Division of Nephrology and Immunology, Department of Medicine, and Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
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