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Koratala A. Point-of-care ultrasonography in cirrhosis-related acute kidney injury: How I do it. World J Crit Care Med 2024; 13:93812. [PMID: 38855271 PMCID: PMC11155506 DOI: 10.5492/wjccm.v13.i2.93812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/24/2024] [Accepted: 05/14/2024] [Indexed: 06/03/2024] Open
Abstract
Discerning the etiology of acute kidney injury (AKI) in cirrhotic patients remains a formidable challenge due to diverse and overlapping causes. The conventional approach of empiric albumin administration for suspected volume depletion may inadvertently lead to fluid overload. In the recent past, point-of-care ultrasonography (POCUS) has emerged as a valuable adjunct to clinical assessment, offering advantages in terms of diagnostic accuracy, rapidity, cost-effectiveness, and patient satisfaction. This review provides insights into the strategic use of POCUS in evaluating cirrhotic patients with AKI. The review distinguishes basic and advanced POCUS, emphasizing a 5-point basic POCUS protocol for efficient assessment. This protocol includes evaluations of the kidneys and urinary bladder for obstructive nephropathy, lung ultrasound for detecting extravascular lung water, inferior vena cava (IVC) ultrasound for estimating right atrial pressure, internal jugular vein ultrasound as an alternative to IVC assessment, and focused cardiac ultrasound for assessing left ventricular (LV) systolic function and identifying potential causes of a plethoric IVC. Advanced POCUS delves into additional Doppler parameters, including stroke volume and cardiac output, LV filling pressures and venous congestion assessment to diagnose or prevent iatrogenic fluid overload. POCUS, when employed judiciously, enhances the diagnostic precision in evaluating AKI in cirrhotic patients, guiding appropriate therapeutic interventions, and minimizing the risk of fluid-related complications.
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Affiliation(s)
- Abhilash Koratala
- Division of Nephrology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, United States
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2
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Premkumar M, Kajal K, Reddy KR, Izzy M, Kulkarni AV, Duseja AK, Sihag KB, Divyaveer S, Gupta A, Taneja S, De A, Verma N, Rathi S, Bhujade H, Chaluvashetty SB, Roy A, Kumar V, Siddhartha V, Singh V, Bahl A. Evaluation of terlipressin-related patient outcomes in hepatorenal syndrome-acute kidney injury using point-of-care echocardiography. Hepatology 2024; 79:1048-1064. [PMID: 37976391 DOI: 10.1097/hep.0000000000000691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/27/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND AND AIMS Treatment of hepatorenal syndrome-acute kidney injury (HRS-AKI), with terlipressin and albumin, provides survival benefits, but may be associated with cardiopulmonary complications. We analyzed the predictors of terlipressin response and mortality using point-of-care echocardiography (POC-Echo) and cardiac and renal biomarkers. APPROACH Between December 2021 and January 2023, patients with HRS-AKI were assessed with POC-Echo and lung ultrasound within 6 hours of admission, at the time of starting terlipressin (48 h), and at 72 hours. Volume expansion was done with 20% albumin, followed by terlipressin infusion. Clinical data, POC-Echo data, and serum biomarkers were prospectively collected. Cirrhotic cardiomyopathy (CCM) was defined per 2020 criteria. RESULTS One hundred and forty patients were enrolled (84% men, 59% alcohol-associated disease, mean MELD-Na 25±SD 5.6). A median daily dose of infused terlipressin was 4.3 (interquartile range: 3.9-4.6) mg/day; mean duration 6.4 ± SD 1.9 days; the complete response was in 62% and partial response in 11%. Overall mortality was 14% and 16% at 30 and 90 days, respectively. Cutoffs for prediction of terlipressin nonresponse were cardiac variables [ratio of early mitral inflow velocity and mitral annular early diastolic tissue doppler velocity > 12.5 (indicating increased left filling pressures, C-statistic: 0.774), tissue doppler mitral velocity < 7 cm/s (indicating impaired relaxation; C-statistic: 0.791), > 20.5% reduction in cardiac index at 72 hours (C-statistic: 0.885); p < 0.001] and pretreatment biomarkers (CysC > 2.2 mg/l, C-statistic: 0.640 and N-terminal proBNP > 350 pg/mL, C-statistic: 0.655; p <0.050). About 6% of all patients with HRS-AKI and 26% of patients with CCM had pulmonary edema. The presence of CCM (adjusted HR 1.9; CI: 1.8-4.5, p = 0.009) and terlipressin nonresponse (adjusted HR 5.2; CI: 2.2-12.2, p <0.001) were predictors of mortality independent of age, sex, obesity, DM-2, etiology, and baseline creatinine. CONCLUSIONS CCM and reduction in cardiac index, reliably predict terlipressin nonresponse. CCM is independently associated with poor survival in HRS-AKI.
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Affiliation(s)
- Madhumita Premkumar
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kamal Kajal
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - K Rajender Reddy
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Manhal Izzy
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University, Nashville, Tennessee, USA
| | - Anand V Kulkarni
- Department of Hepatology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Ajay Kumar Duseja
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - K Bhupendra Sihag
- Department of Cardiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Smita Divyaveer
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Gupta
- Department of Cardiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunil Taneja
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arka De
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Nipun Verma
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sahaj Rathi
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Harish Bhujade
- Radiodiagnosis and Interventional Radiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sreedhara B Chaluvashetty
- Radiodiagnosis and Interventional Radiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Akash Roy
- Department of Hepatology, Apollo Hospital, Kolkata, India
| | - Vishesh Kumar
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vuppada Siddhartha
- Department of Cardiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Virendra Singh
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ajay Bahl
- Department of Cardiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Martinez-Perez S, McCluskey SA, Davierwala PM, Kalra S, Nguyen E, Bhat M, Borosz C, Luzzi C, Jaeckel E, Neethling E. Perioperative Cardiovascular Risk Assessment and Management in Liver Transplant Recipients: A Review of the Literature Merging Guidelines and Interventions. J Cardiothorac Vasc Anesth 2024; 38:1015-1030. [PMID: 38185566 DOI: 10.1053/j.jvca.2023.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/13/2023] [Accepted: 11/26/2023] [Indexed: 01/09/2024]
Abstract
Liver transplantation (LT) is the second most performed solid organ transplant. Coronary artery disease (CAD) is a critical consideration for LT candidacy, particularly in patients with known CAD or risk factors, including metabolic dysfunction associated with steatotic liver disease. The presence of severe CAD may exclude patients from LT; therefore, precise preoperative evaluation and interventions are necessary to achieve transplant candidacy. Cardiovascular complications represent the earliest nongraft-related cause of death post-transplantation. Timely intervention to reduce cardiovascular events depends on adequate CAD screening. Coronary disease screening in end-stage liver disease is challenging because standard noninvasive CAD screening tests have low sensitivity due to hyperdynamic state and vasodilatation. As a result, there is overuse of invasive coronary angiography to exclude severe CAD. Coronary artery calcium scoring using a computed tomography scan is a tool for the prediction of cardiovascular events, and can be used to achieve risk stratification in LT candidates. Recent literature shows that qualitative assessment on both noncontrast- and contrast-enhanced chest computed tomography can be used instead of calcium score to assess the presence of coronary calcium. With increasing prevalence, protocols to address CAD in LT candidates must be reconsidered. Percutaneous coronary intervention could allow a shorter duration of dual-antiplatelet therapy in simple lesions, with safer perioperative outcomes. Hybrid coronary revascularization is an option for high-risk LT candidates with multivessel disease nonamenable to percutaneous coronary intervention. The objective of this review is to evaluate existing methods for preoperative cardiovascular risk stratification, and to describe interventions before surgery to optimize patient outcomes and reduce cardiovascular event risk.
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Affiliation(s)
- Selene Martinez-Perez
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network and Department of Anesthesiology and Pain Medicine, Temetry Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Stuart A McCluskey
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network and Department of Anesthesiology and Pain Medicine, Temetry Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Piroze M Davierwala
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre Toronto, General Hospital, University Health Network, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Sanjog Kalra
- Division of Cardiology, Interventional Cardiology Section, Peter Munk Cardiac Center Toronto General Hospital, University Health Network and Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Elsie Nguyen
- Department of Medical Imaging, Cardiothoracic Imaging Division Lead, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Mamatha Bhat
- Department of Gastroenterology, Hepatology, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Cheryl Borosz
- Department of Gastroenterology, Toronto General Hospital, Toronto, Ontario, Canada
| | - Carla Luzzi
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network and Department of Anesthesiology and Pain Medicine, Temetry Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Elmar Jaeckel
- Department of Gastroenterology, Ajmera Transplant Centre, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Elmari Neethling
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network and Department of Anesthesiology and Pain Medicine, Temetry Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Wang W, Dong L, Gao Y, Gao F, Wang Z, Ding M, Gu C, Li Z, Yin Y, Zhu M, Chen H, Li H, Qi X. Association of echocardiography-related parameters with the prognosis of decompensated cirrhosis: a retrospective cohort study. Curr Med Res Opin 2024; 40:613-620. [PMID: 38369940 DOI: 10.1080/03007995.2024.2319821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/13/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Cardiac morphology and function, which are conventionally evaluated by echocardiography, are often abnormal in decompensated cirrhosis. We aimed to evaluate the association of echocardiography-related parameters with prognosis in cirrhosis. METHODS This retrospective study included 104 decompensated cirrhotic patients, in whom cardiac structure and function were measured by echocardiography, including mitral inflow early diastolic velocity/mitral inflow late diastolic velocity (E/A), left atrium diameter, left ventricular end-diastolic dimension, interventricular septal thickness, left ventricular posterior wall thickness, right atrial transverse diameter, right atrial longitudinal diameter, right ventricular dimension (RVD), stroke volume, cardiac output, left ventricular ejection fraction, and fractional shortening. Cox regression and competing risk analyses and Kaplan-Meier and Nelson-Aalen cumulative risk curves were used to evaluate their associations with further decompensation and death in cirrhotic patients, if appropriate. RESULTS Lower RVD was a predictor of further decompensation in Cox regression (adjusted by Child-Pugh score: p = 0.138; adjusted by MELD score: p = 0.034) and competing risk analyses (p = 0.003), and RVD ≤17 mm was significantly associated with higher cumulative incidence of further decompensation in Kaplan-Meier (p = 0.002) and Nelson-Aalen cumulative risk curves (p = 0.002). E/A ≤ 0.8 was a significant predictor of death in Cox regression (adjusted by Child-Pugh score: p = 0.041; adjusted by MELD score: p = 0.045) and competing risk analyses (p = 0.024), and E/A ≤ 0.8 was significantly associated with higher cumulative incidence of death in Kaplan-Meier (p = 0.023) and Nelson-Aalen cumulative risk curves (p = 0.024). Other echocardiography-related parameters were not significantly associated with further decompensation or death. CONCLUSION RVD and E/A may be considered for the prognostic assessment of decompensated cirrhosis.
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Affiliation(s)
- Weiwei Wang
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Postgraduate College, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Liyan Dong
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Postgraduate College, China Medical University, Shenyang, China
| | - Yue Gao
- Department of Ultrasound, General Hospital of Northern Theater Command, Shenyang, China
| | - Fangbo Gao
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhongchao Wang
- Department of Congenital Cardiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Min Ding
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Postgraduate College, China Medical University, Shenyang, China
| | - Chunru Gu
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Postgraduate College, China Medical University, Shenyang, China
| | - Zhe Li
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Yue Yin
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
| | - Menghua Zhu
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
| | - Hongxin Chen
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
| | - Hongyu Li
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xingshun Qi
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
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5
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Møller S, Wiese S, Barløse M, Hove JD. How non-alcoholic fatty liver disease and cirrhosis affect the heart. Hepatol Int 2023; 17:1333-1349. [PMID: 37770804 DOI: 10.1007/s12072-023-10590-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/29/2023] [Indexed: 09/30/2023]
Abstract
Liver diseases affect the heart and the vascular system. Cardiovascular complications appear to be a leading cause of death in patients with non-alcoholic fatty liver disease (NAFLD) and cirrhosis. The predominant histological changes in the liver range from steatosis to fibrosis to cirrhosis, which can each affect the cardiovascular system differently. Patients with cirrhotic cardiomyopathy (CCM) and NAFLD are at increased risk of impaired systolic and diastolic dysfunction and for suffering major cardiovascular events. However, the pathophysiological mechanisms behind these risks differ depending on the nature of the liver disease. Accurate assessment of symptoms by contemporary diagnostic modalities is essential for identifying patients at risk, for evaluating candidates for treatment, and prior to any invasive procedures. This review explores current perspectives within this field.
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Affiliation(s)
- Søren Møller
- Department Clinical Physiology and Nuclear Medicine 260, Center for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, Copenhagen University Hospital, Kettegaards alle 30, 2650, Hvidovre, Denmark.
- Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Signe Wiese
- Gastro Unit, Medical Division, Hvidovre Hospital, Hvidovre, Denmark
| | - Mads Barløse
- Department Clinical Physiology and Nuclear Medicine 260, Center for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, Copenhagen University Hospital, Kettegaards alle 30, 2650, Hvidovre, Denmark
| | - Jens D Hove
- Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Hvidovre Hospital, Hvidovre, Denmark
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Chaikijurajai T, Rincon-Choles H, Tang WHW. Natriuretic peptide testing strategies in heart failure: A 2023 update. Adv Clin Chem 2023; 118:155-203. [PMID: 38280805 DOI: 10.1016/bs.acc.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024]
Abstract
Natriuretic peptides (NPs), including B-type natriuretic peptide (BNP) and N-terminal pro-BNP (NT-proBNP), have been recommended as standard biomarkers for diagnosing heart failure (HF), and one of the strongest risk predictors for mortality and HF hospitalization regardless of ejection fraction (EF) and etiology of HF. BNP is an active neurohormone opposing renin-angiotensin-aldosterone and sympathetic nervous system overactivated in HF, whereas NT-proBNP is an inactive prohormone released from cardiomyocytes in response to wall stress. Despite substantial advances in the development of guideline-directed medical therapy (GDMT) for HF with reduced EF, studies demonstrating direct benefits of NP-guided chronic HF therapy on mortality, HF hospitalization, and GDMT optimization have yielded conflicting results. However, accumulating evidence shows that achieving prespecified BNP or NT-proBNP target over time is significantly associated with favorable outcomes, suggesting that benefits of serially measured NPs may be limited to particular groups of HF patients, such as those with extreme levels of baseline BNP or NT-proBNP, which could represent severe phenotypes of HF associated with natriuretic peptide resistance or cardiorenal syndrome. Over the past decade, clinical utilization of BNP and NT-proBNP has been expanded, especially using serial NP measurements for guiding HF therapy, optimizing GDMT and identifying at-risk patients with HF phenotypes who may be minimally symptomatic or asymptomatic.
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Affiliation(s)
- Thanat Chaikijurajai
- Kaufman Center for Heart Failure Treatment and Recovery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, United States; Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Hernan Rincon-Choles
- Department of Nephrology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, United States
| | - W H Wilson Tang
- Kaufman Center for Heart Failure Treatment and Recovery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, United States.
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Nabilou P, Danielsen KV, Kimer N, Hove JD, Bendtsen F, Møller S. Blunted cardiovascular effects of beta-blockers in patients with cirrhosis: Relation to severity? PLoS One 2022; 17:e0270603. [PMID: 35763518 PMCID: PMC9239488 DOI: 10.1371/journal.pone.0270603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 06/13/2022] [Indexed: 11/22/2022] Open
Abstract
Aims Patients with cirrhosis and portal hypertension are at high risk of developing complications such as variceal hemorrhage, ascites, and cardiac dysfunction, the latter of which is known as cirrhotic cardiomyopathy. Since non-selective beta-blockers (NSBB) may aggravate hemodynamic complications we investigated the effect of real-time propranolol infusion on cardiac function in patients with varying degrees of cirrhosis. Methods Thirty-eight patients with Child-Pugh A (n = 17), B (n = 17) and C (n = 4) underwent liver vein catheterization and cardiac magnetic resonance imaging. We assessed the effect of real-time propranolol infusion on the hepatic venous pressure gradient, cardiac index, stroke volume, ejection fraction, heart rate, and contractility. Results Nineteen patients were classified as responders to beta-blocker therapy. In pooling Child-Pugh B and C patients, the reduction in cardiac index by beta-blockade was weaker than in Child-Pugh A patients (-8.5% vs. -20.5%, p = 0.043). The effect of NSBB on portal pressure was inversely correlated to changes in the left atrium where the left atrial volume changed by 4 mL±18 in responders compared to 15 mL±11 in non-responders (p = 0.03). Finally, the baseline ejection fraction correlated inversely with the reduction in portal pressure (r = -0.39, p = 0.02). Conclusion We found the effect of beta-blockade on cardiac index in patients with advanced cirrhosis to be less potent than in patients with early cirrhosis, indicating that underlying cirrhotic cardiomyopathy increases, and the cardiac compensatory reserve becomes more compromised, with disease progression. The differential effects of beta-blockade in the left atrium may be used to predict the effect of beta-blockers on portal pressure, but further studies are needed to investigate this possibility.
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Affiliation(s)
- Puria Nabilou
- Gastro Unit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
- * E-mail:
| | - Karen Vagner Danielsen
- Gastro Unit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Nina Kimer
- Gastro Unit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Jens Dahlgaard Hove
- Department of Cardiology, Copenhagen University Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Flemming Bendtsen
- Gastro Unit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
- Department of Clinical Medicine, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Søren Møller
- Department of Clinical Medicine, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
- Dept. Clinical Physiology and Nuclear Medicine, Center for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, Faculty of Health Sciences, University of Copenhagen, København, Denmark
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What's New in Cirrhotic Cardiomyopathy?-Review Article. J Pers Med 2021; 11:jpm11121285. [PMID: 34945757 PMCID: PMC8705028 DOI: 10.3390/jpm11121285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/21/2021] [Accepted: 11/25/2021] [Indexed: 01/16/2023] Open
Abstract
Cirrhotic cardiomyopathy (CCM) is a relatively new medical term. The constant development of novel diagnostic and clinical tools continuously delivers new data and findings about this broad disorder. The purpose of this review is to summarize current facts about CCM, identify gaps of knowledge, and indicate the direction in which to prepare an updated definition of CCM. We performed a review of the literature using scientific data sources with an emphasis on the latest findings. CCM is a clinical manifestation of disorders in the circulatory system in the course of portal hypertension. It is characterized by impaired left ventricular systolic and diastolic dysfunction, and electrophysiological abnormalities, especially QT interval prolongation. However, signs and symptoms reported by patients are non-specific and include reduced exercise tolerance, fatigue, peripheral oedema, and ascites. The disease usually remains asymptomatic with almost normal heart function, unless patients are exposed to stress or exertion. Unfortunately, due to the subclinical course, CCM is rarely recognized. Orthotopic liver transplantation (OLTx) seems to improve circulatory function although there is no consensus about its positive effect, with reported cases of heart failure onset after transplantation. Researchers indicate a careful pre-, peri-, and post-transplant cardiac assessment as a crucial point in detecting CCM and improving patients’ prognosis. There is also an urgent need to update the CCM definition and establish a diagnostic algorithm for early diagnosis of CCM as well as a specific treatment of this condition.
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9
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Diastolic Dysfunction Is a Predictor of Poor Survival in Patients with Decompensated Cirrhosis. Int J Hepatol 2021; 2021:5592376. [PMID: 34900353 PMCID: PMC8660240 DOI: 10.1155/2021/5592376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 11/17/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Left ventricular diastolic dysfunction (LVDD) appears to be the earliest cardiac disturbance in cirrhosis patients. There are many previous reports reporting the significance of severity of LVDD on the outcome of liver transplantation or TIPS insertion, a few Indian studies have addressed the role of LVDD on survival in decompensated cirrhosis. The objective of this study is to assess the effect of LVDD on the survival of decompensated cirrhotic patients. METHODS We prospectively evaluated 92 decompensated cirrhotic patients from April 2015 to March 2017 at IMS and SUM Hospital, Bhubaneswar, India. 2D echocardiography with tissue Doppler imaging was used to evaluate cardiac function, as per the American society of echocardiography guidelines. The primary endpoint was to evaluate the effect of LVDD on overall mortality. RESULTS Ninety-two decompensated cirrhotic patients were evaluated in this prospective cohort study. Twenty-eight out of 92 patients (30%) died due to liver-related complications after a follow-up of 24 months. The decompensated cirrhotic patients with MELD score ≥ 15 had a significantly higher E/e' ratio (11.94 ± 4.24 vs. 8.74 ± 3.32, p < 0.001) suggesting severe LV dysfunction in advanced cirrhosis. Patients with E/e' ratio > 10 had significantly higher MELD score and Child-Pugh score (19.88 ± 7.72 vs. 14.31 ± 5.83; 10.25 ± 1.74 vs. 9.02 ± 1.74, p < 0.01, respectively) as compared to theE/e' ratio < 10 group. In Cox proportional hazard multivariate analysis, E/e' ≥ 10 (HR 2.72, 95% CI 1.07-6.9, p = 0.03) and serum albumin (HR 0.32, 95% CI 0.14-0.7, p < 0.01) were found to be independent predictors of mortality in decompensated cirrhotic patients. CONCLUSION : The presence of LVDD and low serum albumin were independent predictors of mortality in decompensated cirrhotic patients. Hence, LVDD is an indicator of advanced cirrhosis and mortality.
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10
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Desai MS. Mechanistic insights into the pathophysiology of cirrhotic cardiomyopathy. Anal Biochem 2021; 636:114388. [PMID: 34587512 DOI: 10.1016/j.ab.2021.114388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/22/2021] [Accepted: 09/15/2021] [Indexed: 02/08/2023]
Abstract
Myocardial dysfunction in end stage cirrhotic liver disease, termed cirrhotic cardiomyopathy, is a long known, but little understood comorbidity seen in ∼50% of adults and children who present for liver transplantation. Structural, functional, hemodynamic and electrocardiographic aberrations that occur in the heart as a direct consequence of a damaged liver, is associated with multi-organ failure and increased mortality and morbidity in patients undergoing surgical procedures such as porto-systemic shunt placement and liver transplantation. Despite its clinical significance and rapid advances in science and pharmacotherapy, there is yet no specific treatment for this disease. This may be due to a lack of understanding of the pathogenesis and mechanisms behind how a cirrhotic liver causes cardiac pathology. This review will focus specifically on insights into the molecular mechanisms that drive this liver-heart interaction. Deeper understanding of the etio-pathogenesis of cirrhotic cardiomyopathy will allow us to design and test treatments that can be targeted to prevent and/or reverse this co-morbid consequence of liver failure and improve health care delivery and outcomes in patients with cirrhosis.
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Affiliation(s)
- Moreshwar S Desai
- Department of Pediatrics, Section of Pediatric Critical Care Medicine and Liver ICU. Baylor College of Medicine, Houston, TX, 77030, USA.
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11
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de Souza SLB, Mota GAF, Gregolin CS, do Nascimento M, Luvizotto RAM, Bazan SGZ, Sugizaki MM, Barbisan LF, Cicogna AC, do Nascimento AF. Exercise Training Attenuates Cirrhotic Cardiomyopathy. J Cardiovasc Transl Res 2021; 14:674-684. [PMID: 32246321 DOI: 10.1007/s12265-020-09997-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 03/25/2020] [Indexed: 12/22/2022]
Abstract
Cirrhotic cardiomyopathy is a condition where liver cirrhosis is associated with cardiac dysfunction. Triggers and blockers of cirrhotic cardiomyopathy are poorly understood, which might compromise the prognosis of chronic liver disease patients. We tested whether exercise training would reduce liver damage induced by thioacetamide and prevent liver cirrhosis-associated cardiomyopathy. Wistar rats were divided into three groups: control, thioacetamide (TAA), or TAA plus exercise. Thioacetamide increased liver weight and serum alanine aminotransferase and aspartate aminotransferase levels. Also, TAA treatment was involved with hepatic nodule formation, fibrotic septa, inflammatory infiltration, and hepatocyte necrosis. The exercise group presented with a reduction in liver injury status. We found that liver injury was associated with disordered cardiac hypertrophy as well as diastolic and systolic dysfunction. Exercise training attenuated cirrhosis-associated cardiac remodeling and diastolic dysfunction and prevented systolic impairment. These results provided insights that exercise training can mitigate cirrhotic cardiomyopathy phenotype. Graphical Abstract Exercise training attenuated liver injury as well as cirrhosis-associated cardiac remodeling and diastolic dysfunction and prevented systolic impairment.
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Affiliation(s)
- Sérgio Luiz Borges de Souza
- Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Gustavo Augusto Ferreira Mota
- Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Cristina Schmitt Gregolin
- Institute of Health Sciences, Federal University of Mato Grosso (UFMT), Avenida Alexandre Ferronato, n°1200, Setor Industrial, Sinop, Mato Grosso, 78.556-267, Brazil
| | - Milena do Nascimento
- Institute of Health Sciences, Federal University of Mato Grosso (UFMT), Avenida Alexandre Ferronato, n°1200, Setor Industrial, Sinop, Mato Grosso, 78.556-267, Brazil
| | - Renata Azevedo Melo Luvizotto
- Institute of Health Sciences, Federal University of Mato Grosso (UFMT), Avenida Alexandre Ferronato, n°1200, Setor Industrial, Sinop, Mato Grosso, 78.556-267, Brazil
| | - Silmeia Garcia Zanati Bazan
- Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Mário Mateus Sugizaki
- Institute of Health Sciences, Federal University of Mato Grosso (UFMT), Avenida Alexandre Ferronato, n°1200, Setor Industrial, Sinop, Mato Grosso, 78.556-267, Brazil
| | - Luis Fernando Barbisan
- Department of Morphology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Antonio Carlos Cicogna
- Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - André Ferreira do Nascimento
- Institute of Health Sciences, Federal University of Mato Grosso (UFMT), Avenida Alexandre Ferronato, n°1200, Setor Industrial, Sinop, Mato Grosso, 78.556-267, Brazil.
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12
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Zardi EM, Giorgi C, Dobrina A, Vecile E, Zardi DM. Analogies and differences between cirrhotic cardiomyopathy and hepatopulmonary syndrome. Med Res Rev 2020; 41:739-753. [PMID: 33174630 DOI: 10.1002/med.21755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 12/20/2022]
Abstract
Cirrhotic cardiomyopathy and hepatopulmonary syndrome are two quite frequent clinical entities that may complicate the course of liver cirrhosis. The common pathophysiological origin and the same clinical presentation make them difficult to compare. Cirrhotic cardiomyopathy and hepatopulmonary syndrome may start with dyspnea and breathlessness but the former is characterized by a chronic cardiac dysfunction and the latter by a defect of oxygenation due to pulmonary shunts formation. The focus is to differentiate them as soon as possible since the treatment is different until the patient undergoes liver transplant that is the real unique cure for them.
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Affiliation(s)
- Enrico Maria Zardi
- Internistic Ultrasound Service, Campus Bio-Medico University, Rome, Italy
| | - Chiara Giorgi
- Department of Radiology, S. Maria Della Misericordia Hospital, Urbino, Italy
| | - Aldo Dobrina
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | - Elena Vecile
- Department of Physiology and Pathology, University of Trieste, Trieste, Italy
| | - Domenico Maria Zardi
- Interventional Cardiology Department of S. Andrea Hospital, University "La Sapienza", Rome, Italy
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13
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Interplay of cardiovascular mediators, oxidative stress and inflammation in liver disease and its complications. Nat Rev Cardiol 2020; 18:117-135. [PMID: 32999450 DOI: 10.1038/s41569-020-0433-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/11/2020] [Indexed: 12/11/2022]
Abstract
The liver is a crucial metabolic organ that has a key role in maintaining immune and endocrine homeostasis. Accumulating evidence suggests that chronic liver disease might promote the development of various cardiac disorders (such as arrhythmias and cardiomyopathy) and circulatory complications (including systemic, splanchnic and pulmonary complications), which can eventually culminate in clinical conditions ranging from portal and pulmonary hypertension to pulmonary, cardiac and renal failure, ascites and encephalopathy. Liver diseases can affect cardiovascular function during the early stages of disease progression. The development of cardiovascular diseases in patients with chronic liver failure is associated with increased morbidity and mortality, and cardiovascular complications can in turn affect liver function and liver disease progression. Furthermore, numerous infectious, inflammatory, metabolic and genetic diseases, as well as alcohol abuse can also influence both hepatic and cardiovascular outcomes. In this Review, we highlight how chronic liver diseases and associated cardiovascular effects can influence different organ pathologies. Furthermore, we explore the potential roles of inflammation, oxidative stress, vasoactive mediator imbalance, dysregulated endocannabinoid and autonomic nervous systems and endothelial dysfunction in mediating the complex interplay between the liver and the systemic vasculature that results in the development of the extrahepatic complications of chronic liver disease. The roles of ageing, sex, the gut microbiome and organ transplantation in this complex interplay are also discussed.
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Abstract
PURPOSE OF REVIEW Cirrhotic cardiomyopathy is a syndrome of depressed cardiac function in patients with cirrhosis. We aimed to review the historical background, pathophysiology and pathogenesis, diagnostic definitions, clinical relevance, and management of this syndrome. RECENT FINDINGS An inflammatory phenotype underlies the pathogenesis: gut bacterial translocation with endotoxemia stimulates cytokines and cardiodepressant factors, such as nitric oxide and endocannabinoids. Cardiomyocyte plasma membrane biochemical and biophysical changes also play a pathogenic role. These factors lead to impaired beta-adrenergic function. Proposed new echocardiographic criteria for the diagnosis of cirrhotic cardiomyopathy include systolic global longitudinal strain and indices of diastolic dysfunction. Cardiac dysfunction participates in the pathogenesis of hepatorenal syndrome and increased morbidity/mortality of cirrhotic patients to hemorrhage, infection, and surgery, including liver transplantation. There is no specific treatment, although β-adrenergic blockade and supportive management have been proposed, but it needs further study. Cirrhotic cardiomyopathy is a clinically relevant syndrome afflicting patients with established cirrhosis. Optimum management remains unclear, and further study is needed in this area.
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Affiliation(s)
- Ki Tae Yoon
- Liver Unit, University Calgary Cumming School of Medicine, 3330 Hospital Dr NW, Calgary, AB, T2N 4N1, Canada.,Liver Center, Department of Internal Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 50612, South Korea
| | - Hongqun Liu
- Liver Unit, University Calgary Cumming School of Medicine, 3330 Hospital Dr NW, Calgary, AB, T2N 4N1, Canada
| | - Samuel S Lee
- Liver Unit, University Calgary Cumming School of Medicine, 3330 Hospital Dr NW, Calgary, AB, T2N 4N1, Canada.
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Maliakkal BJ. Pathogenesis of non-alcoholic fatty liver disease and implications on cardiovascular outcomes in liver transplantation. Transl Gastroenterol Hepatol 2020; 5:36. [PMID: 32632387 DOI: 10.21037/tgh.2019.12.02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 11/05/2019] [Indexed: 12/15/2022] Open
Abstract
Along with the obesity epidemic there has been a major increase in non-alcoholic fatty liver disease (NAFLD) prevalence, paralleling a steady increase in cirrhosis of the liver and hepatocellular cancer (HCC) related to NAFLD. Currently, NAFLD (related HCC and cirrhosis) is the second most common cause for liver transplantation (LT) and it is projected to take the top spot in the next 3-5 years. Patients with NAFLD cirrhosis and HCC have a unique set of comorbidities which potentially increases their risk for cardiovascular disease (CVD) and mortality. However, a review of the published data in NAFLD patients who undergo LT, does not paint a clear picture. While CVD is the most common cause of non-graft related mortality over the long-term, the short and intermediate-term survival post LT in NAFLD cirrhosis appears to be on par with other etiologies when age and comorbidities are factored. The cardiovascular complications are increased in the immediate post-transplant period but there is a shift from ischemic complications to arrhythmias and heart failure (HF). NAFLD recurs in 80-100% patients and occurs de novo in about 50% after LT, potentially impacting their long-term morbidity and mortality. This review summarizes the available data on CVD in NAFLD patients before and after LT, explains what is currently known about the epidemiology and pathogenesis of CVD in NAFLD and posits strategies to improve wait-list and post-transplant survival.
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16
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Matyas C, Erdelyi K, Trojnar E, Zhao S, Varga ZV, Paloczi J, Mukhopadhyay P, Nemeth BT, Haskó G, Cinar R, Rodrigues RM, Ahmed YA, Gao B, Pacher P. Interplay of Liver-Heart Inflammatory Axis and Cannabinoid 2 Receptor Signaling in an Experimental Model of Hepatic Cardiomyopathy. Hepatology 2020; 71:1391-1407. [PMID: 31469200 PMCID: PMC7048661 DOI: 10.1002/hep.30916] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 08/23/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Hepatic cardiomyopathy, a special type of heart failure, develops in up to 50% of patients with cirrhosis and is a major determinant of survival. However, there is no reliable model of hepatic cardiomyopathy in mice. We aimed to characterize the detailed hemodynamics of mice with bile duct ligation (BDL)-induced liver fibrosis, by monitoring echocardiography and intracardiac pressure-volume relationships and myocardial structural alterations. Treatment of mice with a selective cannabinoid-2 receptor (CB2 -R) agonist, known to attenuate inflammation and fibrosis, was used to explore the impact of liver inflammation and fibrosis on cardiac function. APPROACH AND RESULTS BDL induced massive inflammation (increased leukocyte infiltration, inflammatory cytokines, and chemokines), oxidative stress, microvascular dysfunction, and fibrosis in the liver. These pathological changes were accompanied by impaired diastolic, systolic, and macrovascular functions; cardiac inflammation (increased macrophage inflammatory protein 1, interleukin-1, P-selectin, cluster of differentiation 45-positive cells); and oxidative stress (increased malondialdehyde, 3-nitrotyrosine, and nicotinamide adenine dinucleotide phosphate oxidases). CB2 -R up-regulation was observed in both livers and hearts of mice exposed to BDL. CB2 -R activation markedly improved hepatic inflammation, impaired microcirculation, and fibrosis. CB2 -R activation also decreased serum tumor necrosis factor-alpha levels and improved cardiac dysfunction, myocardial inflammation, and oxidative stress, underlining the importance of inflammatory mediators in the pathology of hepatic cardiomyopathy. CONCLUSIONS We propose BDL-induced cardiomyopathy in mice as a model for hepatic/cirrhotic cardiomyopathy. This cardiomyopathy, similar to cirrhotic cardiomyopathy in humans, is characterized by systemic hypotension and impaired macrovascular and microvascular function accompanied by both systolic and diastolic dysfunction. Our results indicate that the liver-heart inflammatory axis has a pivotal pathophysiological role in the development of hepatic cardiomyopathy. Thus, controlling liver and/or myocardial inflammation (e.g., with selective CB2 -R agonists) may delay or prevent the development of cardiomyopathy in severe liver disease.
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Affiliation(s)
- Csaba Matyas
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Katalin Erdelyi
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Eszter Trojnar
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Suxian Zhao
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Zoltan V. Varga
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA,ZVV’s present affiliation: HCEMM-SU Cardiometabolic Immunology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Janos Paloczi
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Partha Mukhopadhyay
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Balazs T. Nemeth
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - György Haskó
- Department of Anesthesiology, Columbia University, New York, NY 10032, USA
| | - Resat Cinar
- Laboratory of Physiologic Studies, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Robim M. Rodrigues
- Laboratory of Liver Diseases, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Yeni Ait Ahmed
- Laboratory of Liver Diseases, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Bin Gao
- Laboratory of Liver Diseases, National Institutes of Health/NIAAA, Bethesda, MD, USA
| | - Pal Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health/NIAAA, Bethesda, MD, USA
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17
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Impact of cardiac function, refractory ascites and beta blockers on the outcome of patients with cirrhosis listed for liver transplantation. J Hepatol 2020; 72:463-471. [PMID: 31622697 DOI: 10.1016/j.jhep.2019.10.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/27/2019] [Accepted: 10/07/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Whether non-selective beta blockers (NSBBs) are deleterious in patients with end-stage cirrhosis and refractory ascites has been widely debated. We hypothesized that only the subset of patients on the liver transplant waiting list who had impaired cardiac performance would be at increased risk of mortality if receiving NSBBs. METHODS This study included 584 consecutive patients with cirrhosis evaluated for transplantation between 1999 and 2014. All patients had right heart catheterization with hemodynamic measurements at evaluation. Fifty percent received NSBBs. Refractory ascites was present in 33%. Cardiac performance was assessed by left ventricular stroke work index (LVSWI). Waiting list mortality without liver transplantation was explored using competing risk analysis. RESULTS LVSWI was significantly lower in patients with refractory ascites. In multivariate analysis using competing risk, refractory ascites, NSBBs and LVSWI were associated with waiting list mortality in the whole population, with a statistically significant interaction between NSBBs and LVSWI. The most discriminant value of LVSWI was 64.1 g-m/m2. In the final model, refractory ascites (subdistribution hazard ratio 1.52; 95% CI1.01-2.28; p = 0.0083) and treatment by NSBBs with LVSWI <64.1 g-m/m2 (subdistribution hazard ratio 1.96; 95% CI 1.32-2.90; p = 0.0009) were significantly associated with waiting list mortality, taking into account serum sodium and the model for end-stage liver disease score. CONCLUSIONS This study suggests that compromised cardiac performance is more common in patients with refractory ascites and that NSBBs are deleterious in cirrhotic patients with compromised cardiac performance. These results highlight the prognostic value of cardiac function in patients with end-stage cirrhosis. LAY SUMMARY There are still controversies concerning the impact of non-selective beta blockers on outcomes in patients with decompensated cirrhosis, especially in those with refractory ascites. In this study of 584 cirrhotic patients evaluated for liver transplantation, who underwent right heart catheterization, we have shown that global cardiac performance measured by left ventricular stroke work index is lower in patients with refractory ascites. Administration of non-selective beta blockers in patients with compromised cardiac performance may increase waiting list mortality. These results highlight the prognostic value of global cardiac performance in patients with end-stage cirrhosis.
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18
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Razavi AC, Bazzano LA, He J, Fernandez C, Whelton SP, Krousel-Wood M, Li S, Nierenberg JL, Shi M, Li C, Mi X, Kinchen J, Kelly TN. Novel Findings From a Metabolomics Study of Left Ventricular Diastolic Function: The Bogalusa Heart Study. J Am Heart Assoc 2020; 9:e015118. [PMID: 31992159 PMCID: PMC7033875 DOI: 10.1161/jaha.119.015118] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background Diastolic dysfunction is one important causal factor for heart failure with preserved ejection fraction, yet the metabolic signature associated with this subclinical phenotype remains unknown. Methods and Results Ultra‐high‐performance liquid chromatography–tandem mass spectroscopy was used to conduct untargeted metabolomic analysis of fasting serum samples in 1050 white and black participants of the BHS (Bogalusa Heart Study). After quality control, 1202 metabolites were individually tested for association with 5 echocardiographic measures of left ventricular diastolic function using multivariable‐adjusted linear regression. Measures of left ventricular diastolic function included the ratio of peak early filling velocity to peak late filling velocity, ratio of peak early filling velocity to mitral annular velocity, deceleration time, isovolumic relaxation time, and left atrial maximum volume index (LAVI). Analyses adjusted for multiple cardiovascular disease risk factors and used Bonferroni‐corrected alpha thresholds. Eight metabolites robustly associated with left ventricular diastolic function in the overall population and demonstrated consistent associations in white and black study participants. N‐formylmethionine (B=0.05; P=1.50×10−7); 1‐methylhistidine (B=0.05; P=1.60×10−7); formiminoglutamate (B=0.07; P=5.60×10−7); N2, N5‐diacetylornithine (B=0.05; P=1.30×10−7); N‐trimethyl 5‐aminovalerate (B=0.04; P=5.10×10−6); 5‐methylthioadenosine (B=0.04; P=1.40×10−5); and methionine sulfoxide (B=0.04; P=3.80×10−6) were significantly associated with the natural log of the ratio of peak early filling velocity to mitral annular velocity. Butyrylcarnitine (B=3.18; P=2.10×10−6) was significantly associated with isovolumic relaxation time. Conclusions The current study identified novel findings of metabolite associations with left ventricular diastolic function, suggesting that the serum metabolome, and its underlying biological pathways, may be implicated in heart failure with preserved ejection fraction pathogenesis.
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Affiliation(s)
- Alexander C Razavi
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA.,Department of Medicine Tulane University School of Medicine New Orleans LA
| | - Lydia A Bazzano
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA.,Department of Medicine Tulane University School of Medicine New Orleans LA
| | - Jiang He
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA.,Department of Medicine Tulane University School of Medicine New Orleans LA
| | - Camilo Fernandez
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA.,Department of Medicine Tulane University School of Medicine New Orleans LA
| | - Seamus P Whelton
- The Ciccarone Center for the Prevention of Heart Disease Johns Hopkins University School of Medicine Baltimore MD
| | - Marie Krousel-Wood
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA.,Department of Medicine Tulane University School of Medicine New Orleans LA
| | - Shengxu Li
- Children's Minnesota Research Institute Children's Hospitals & Clinics of Minnesota Minneapolis MN
| | - Jovia L Nierenberg
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA
| | - Mengyao Shi
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA
| | - Changwei Li
- Department of Epidemiology and Biostatistics University of Georgia College of Public Health Athens GA
| | - Xuenan Mi
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA
| | | | - Tanika N Kelly
- Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA
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19
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Dimitroglou Y, Aggeli C, Alexopoulou A, Mavrogeni S, Tousoulis D. Cardiac Imaging in Liver Transplantation Candidates: Current Knowledge and Future Perspectives. J Clin Med 2019; 8:E2132. [PMID: 31817014 PMCID: PMC6947158 DOI: 10.3390/jcm8122132] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/23/2019] [Accepted: 11/26/2019] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular dysfunction in cirrhotic patients is a recognized clinical entity commonly referred to as cirrhotic cardiomyopathy. Systematic inflammation, autonomic dysfunction, and activation of vasodilatory factors lead to hyperdynamic circulation with high cardiac output and low peripheral vascular resistance. Counter acting mechanisms as well as direct effects on cardiac cells led to systolic or diastolic dysfunction and electromechanical abnormalities, which are usually masked at rest but exposed at stress situations. While cardiovascular complications and mortality are common in patients undergoing liver transplantation, they cannot be adequately predicted by conventional cardiac examination including transthoracic echocardiography. Newer echocardiography indices and other imaging modalities such as cardiac magnetic resonance have shown increased diagnostic accuracy with predictive implications in cardiovascular diseases. The scope of this review was to describe the role of cardiac imaging in the preoperative assessment of liver transplantation candidates with comprehensive analysis of the future perspectives anticipated by the use of newer echocardiography indices and cardiac magnetic resonance applications.
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Affiliation(s)
- Yannis Dimitroglou
- Department of Cardiology, National and Kapodistrian University of Athens Medical School, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.)
| | - Constantina Aggeli
- Department of Cardiology, National and Kapodistrian University of Athens Medical School, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.)
| | - Alexandra Alexopoulou
- Department of Internal Medicine and Research Laboratory, National and Kapodistrian University of Athens Medical School, Hippokration General Hospital, 115 27 Athens, Greece
| | - Sophie Mavrogeni
- Onassis Cardiac Center and National and Kapodistrian University of Athens, 176 74 Athens, Greece;
| | - Dimitris Tousoulis
- Department of Cardiology, National and Kapodistrian University of Athens Medical School, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.)
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20
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Markin NW, Ringenberg KJ, Kassel CA, Walcutt CR, Chacon MM. 2018 Clinical Update in Liver Transplantation. J Cardiothorac Vasc Anesth 2019; 33:3239-3248. [DOI: 10.1053/j.jvca.2019.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 12/13/2022]
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21
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Cardiac inflammation and diastolic dysfunction in hypercholesterolemic rabbits. PLoS One 2019; 14:e0220707. [PMID: 31393963 PMCID: PMC6687122 DOI: 10.1371/journal.pone.0220707] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 07/22/2019] [Indexed: 01/01/2023] Open
Abstract
Background Left ventricular diastolic dysfunction (LVDD) is present in more than 50% of patients suffering from heart failure. LVDD animal models are limited and its underlying mechanisms remain largely unknown. Aortic valve stenosis (AVS) may cause LVDD, and we recently reported LVDD in an AVS rabbit model. Here we aimed to develop a rabbit model of LVDD without AVS. Methods Rabbits were fed with a 0.5% cholesterol-enriched diet (n = 9) or normal diet (n = 8) until they developed LVDD defined by a value of the echocardiographic parameter E/Em ratio higher than the mean at baseline + 2SD. Rabbits were then fed a 0.2% cholesterol-enriched diet for 4 weeks (average total diet duration: 20 weeks). Detailed cardiac structure and function measurements were assessed by echocardiography at baseline, weeks 8, 12 and 14 to 20, when applicable. Histological analyses and RT-qPCR were performed on LV samples. Results The hypercholesterolemic diet induced LVDD without systolic dysfunction or AVS, as shown by multiple echocardiographic parameters, including early filling mitral peak velocity and deceleration rate, Em/Am ratio and E/Em ratio (all p<0.05), and by increased cardiac mRNA expression of brain natriuretic peptide (Bnp). Cardiac expression of mRNA for Nox2, Vcam1, Mmp12, Mmp12/Timp1, Il1b and Col1/Col3 ratios was also higher in these rabbits (p<0.05). In contrast, cardiac Sod2 mRNA expression was reduced in hypercholesterolemic rabbits compared to controls. Conclusion Rabbits fed with a cholesterol-enriched diet develop LVDD with preserved systolic function and evidence of cardiac inflammation and oxidative stress. This rabbit model may be used in future studies to test treatment strategies against LVDD.
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22
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Lee SK, Song MJ, Kim SH, Ahn HJ. Cardiac diastolic dysfunction predicts poor prognosis in patients with decompensated liver cirrhosis. Clin Mol Hepatol 2018; 24:409-416. [PMID: 30145855 PMCID: PMC6313020 DOI: 10.3350/cmh.2018.0034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/29/2018] [Indexed: 12/13/2022] Open
Abstract
Background/Aims Left ventricular diastolic dysfunction (LVDD) is an early manifestation of cardiac dysfunction in patients with liver cirrhosis (LC). However, the effect of LVDD on survival has not been clarified, especially in decompensated LC. Methods We prospectively enrolled 70 patients with decompensated LC, including ascites or variceal bleeding, at Daejeon St. Mary’s Hospital from April 2013 to April 2015. The cardiac function of these patients was evaluated using 2D echocardiography with tissue Doppler imaging. The diagnosis of LVDD was based on the American Society of Echocardiography guidelines. The primary endpoint was overall survival. Results Forty-four patients (62.9%) had LVDD. During follow-up (22.3 months), 18 patients died (16 with LVDD and 2 without LVDD). The survival rate was significantly lower in patients with LVDD than in those without LVDD (31.1 months vs. 42.6 months, P=0.01). In a multivariate analysis, the Child-Pugh score and LVDD were independent predictors of survival. Moreover, patients with a ratio of early filling velocity to early diastolic mitral annular velocity (E/e’) ≥ 10 (LVDD grade 2) had lower survival than patients with E/e’ ratio < 10. Conclusions The presence of LVDD is associated with poor survival in patients with decompensated LC. Therefore, it may be important to monitor and closely follow LVDD patients.
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Affiliation(s)
- Soon Kyu Lee
- Division of Hepatology, Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Myeong Jun Song
- Division of Hepatology, Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Seok Hwan Kim
- Division of Hepatology, Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Hyo Jun Ahn
- Division of Hepatology, Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
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Flaherty D, Kim S, Zerillo J, Park C, Joseph T, Hill B, Lin HM, Li J, Hamsher C, Weiner MM, DeMaria S. Preoperative QTc Interval is Not Associated With Intraoperative Cardiac Events or Mortality in Liver Transplantation Patients. J Cardiothorac Vasc Anesth 2018; 33:961-966. [PMID: 30097315 DOI: 10.1053/j.jvca.2018.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The primary objective of this study was to determine whether liver transplantation recipients with preoperative prolonged corrected (QTc) intervals have a higher incidence of intraoperative cardiac events and/or postoperative mortality compared with their peers with normal QTc intervals. DESIGN This was a retrospective cohort study. SETTING Single academic hospital in New York, NY. PARTICIPANTS Patients undergoing liver transplantation between 2007 and 2016. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Data relating to all liver transplantation recipients with preoperative electrocardiograms were queried from an institutional anesthesia data warehouse and electronic medical records. Primary outcomes were a composite outcome of intraoperative cardiac events and postoperative mortality. Patients with a prolonged QTc interval (>450 ms for men, >470 ms for women) did not demonstrate an association with intraoperative cardiac events, 30- or 90-day mortality, in-hospital mortality, or overall mortality compared with recipients in the normal QTc interval group. A prolonged QTc was found to be associated with increased anesthesia time, surgical time, length of hospital stay, and incidence of fresh frozen plasma and platelets transfusion. CONCLUSIONS Prolonged QTc interval is not associated with an increased incidence of intraoperative cardiac events or mortality in liver transplantation recipients. The demonstrated correlation among QTc length and Model for End-stage Liver Disease score, blood component requirements, surgical and anesthetic times, and hospital length of stay likely represents the association between QTc length and severity of liver disease.
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Affiliation(s)
- Devon Flaherty
- Department of Anesthesiology, Perioperative, and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Sang Kim
- Department of Anesthesiology, Critical Care and Pain Medicine, Hospital for Special Surgery, New York, NY.
| | - Jeron Zerillo
- Department of Anesthesiology, Perioperative, and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Chang Park
- Department of Anesthesiology, Perioperative, and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Thomas Joseph
- Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, PA
| | - Bryan Hill
- Department of Anesthesiology, The Ohio State University, Columbus, OH
| | - Hung-Mo Lin
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Jiawen Li
- Department of Biostatistics and Data Management, Abbott Molecular, Des Plaines, IL
| | - Carlyle Hamsher
- Department of Anesthesia and Perioperative Care, Zuckerberg General Hospital and Trauma Center, San Francisco, CA
| | - Menachem M Weiner
- Department of Anesthesiology, Perioperative, and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Samuel DeMaria
- Department of Anesthesiology, Perioperative, and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
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24
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Danielsen KV, Wiese S, Hove J, Bendtsen F, Møller S. Pronounced Coronary Arteriosclerosis in Cirrhosis: Influence on Cardiac Function and Survival? Dig Dis Sci 2018. [PMID: 29516327 DOI: 10.1007/s10620-018-5006-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The relation between excessive alcohol consumption and coronary arteriosclerosis has remained controversial. The etiology of cirrhosis has been considered a substantial risk factor for development of arteriosclerotic lesions. The coronary artery calcium-score derived from coronary CT angiography is a robust marker of coronary arteriosclerosis. AIMS To study the burden of coronary arteriosclerosis in cirrhotic patients of various etiologies and association to cardiac dysfunction and survival. METHODS Fifty-seven patients with cirrhosis without cardiovascular disease underwent coronary CT angiography, tissue Doppler echocardiography, electrocardiogram and registration of clinical and biochemical characteristics. RESULTS In patients with cirrhosis the median coronary artery calcium-score was increased in comparison with age and race-adjusted healthy reference values (men: 328 vs. 9 HU and women: 136 vs. 0 HU; p < 0.001). Moreover, the coronary artery calcium-score in alcohol-related cirrhosis was significantly higher than in nonalcohol-related cirrhosis (362 vs. 46 HU, p < 0.001). Coronary artery calcium-score correlated with age (p = 0.002) but not with established cardiovascular risk factors including smoking, type 2 diabetes, hypertension, gender, or hypercholesterolemia. Coronary artery calcium-score was associated with diastolic dysfunction, lateral e´ (p = 0.025), but not with other markers of cardiac dysfunction. During a median follow-up of 25 months 12 patients (21%) died but coronary artery calcium-score was not associated with survival. CONCLUSIONS Coronary arteriosclerosis was particular extensive in patients with alcoholic cirrhosis. However, the current results suggest that coronary arteriosclerosis only have limited influence on cardiac function and survival. Surprisingly, no other established risk factors apart from age seemed to interfere with coronary arteriosclerosis in cirrhotic patients.
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Affiliation(s)
- Karen V Danielsen
- Centre for Functional and Diagnostic Imaging, Department of Clinical Physiology and Nuclear Medicine, Hvidovre Hospital, Hvidovre, Denmark. .,Centre for Gastroenterology and Hepatology, Department of medicine, Hvidovre Hospital, Hvidovre, Denmark.
| | - Signe Wiese
- Centre for Functional and Diagnostic Imaging, Department of Clinical Physiology and Nuclear Medicine, Hvidovre Hospital, Hvidovre, Denmark.,Centre for Gastroenterology and Hepatology, Department of medicine, Hvidovre Hospital, Hvidovre, Denmark
| | - Jens Hove
- Department of Cardiology, Hvidovre Hospital, Copenhagen, Denmark
| | - Flemming Bendtsen
- Centre for Gastroenterology and Hepatology, Department of medicine, Hvidovre Hospital, Hvidovre, Denmark
| | - Søren Møller
- Centre for Functional and Diagnostic Imaging, Department of Clinical Physiology and Nuclear Medicine, Hvidovre Hospital, Hvidovre, Denmark
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25
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Møller S, Bendtsen F. The pathophysiology of arterial vasodilatation and hyperdynamic circulation in cirrhosis. Liver Int 2018; 38:570-580. [PMID: 28921803 DOI: 10.1111/liv.13589] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 09/11/2017] [Indexed: 12/11/2022]
Abstract
Patients with cirrhosis and portal hypertension often develop complications from a variety of organ systems leading to a multiple organ failure. The combination of liver failure and portal hypertension results in a hyperdynamic circulatory state partly owing to simultaneous splanchnic and peripheral arterial vasodilatation. Increases in circulatory vasodilators are believed to be due to portosystemic shunting and bacterial translocation leading to redistribution of the blood volume with central hypovolemia. Portal hypertension per se and increased splanchnic blood flow are mainly responsible for the development and perpetuation of the hyperdynamic circulation and the associated changes in cardiovascular function with development of cirrhotic cardiomyopathy, autonomic dysfunction and renal dysfunction as part of a cardiorenal syndrome. Several of the cardiovascular changes are reversible after liver transplantation and point to the pathophysiological significance of portal hypertension. In this paper, we aimed to review current knowledge on the pathophysiology of arterial vasodilatation and the hyperdynamic circulation in cirrhosis.
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Affiliation(s)
- Søren Møller
- Department of Clinical Physiology and Nuclear Medicine, Center for Functional and Diagnostic Imaging and Research, University of Copenhagen, Copenhagen, Denmark
| | - Flemming Bendtsen
- Gastro Unit, Medical Division, Faculty of Health Sciences, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
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26
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Zhabyeyev P, Das SK, Basu R, Shen M, Patel VB, Kassiri Z, Oudit GY. TIMP3 deficiency exacerbates iron overload-mediated cardiomyopathy and liver disease. Am J Physiol Heart Circ Physiol 2018; 314:H978-H990. [PMID: 29373036 DOI: 10.1152/ajpheart.00597.2017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chronic iron overload results in heart and liver diseases and is a common cause of morbidity and mortality in patients with genetic hemochromatosis and secondary iron overload. We investigated the role of tissue inhibitor of metalloproteinase 3 (TIMP3) in iron overload-mediated tissue injury by subjecting male mice lacking Timp3 ( Timp3-/-) and wild-type (WT) mice to 12 wk of chronic iron overload. Whereas WT mice with iron overload developed diastolic dysfunction, iron-overloaded Timp3-/- mice showed worsened cardiac dysfunction coupled with systolic dysfunction. In the heart, loss of Timp3 was associated with increased myocardial fibrosis, greater Timp1, matrix metalloproteinase ( Mmp) 2, and Mmp9 expression, increased active MMP-2 levels, and gelatinase activity. Iron overload in Timp3-/- mice showed twofold higher iron accumulation in the liver compared with WT mice because of constituently lower levels of ferroportin. Loss of Timp3 enhanced the hepatic inflammatory response to iron overload, leading to greater neutrophil and macrophage infiltration and increased hepatic fibrosis. Expression of inflammation-related MMPs (MMP-12 and MMP-13) and inflammatory cytokines (IL-1β and monocyte chemoattractant protein-1) was elevated to a greater extent in iron-overloaded Timp3-/- livers. Gelatin zymography demonstrated equivalent increases in MMP-2 and MMP-9 levels in WT and Timp3-/- iron-overloaded livers. Loss of Timp3 enhanced the susceptibility to iron overload-mediated heart and liver injury, suggesting that Timp3 is a key protective molecule against iron-mediated pathology. NEW & NOTEWORTHY In mice, loss of tissue inhibitor of metalloproteinase 3 ( Timp3) was associated with systolic and diastolic dysfunctions, twofold higher hepatic iron accumulation (attributable to constituently lower levels of ferroportin), and increased hepatic inflammation. Loss of Timp3 enhanced the susceptibility to iron overload-mediated injury, suggesting that Timp3 plays a key protective role against iron-mediated pathology.
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Affiliation(s)
- Pavel Zhabyeyev
- Division of Cardiology, Department of Medicine, University of Alberta , Edmonton, Alberta , Canada.,Mazankowski Alberta Heart Institute, University of Alberta , Edmonton, Alberta , Canada
| | - Subhash K Das
- Division of Cardiology, Department of Medicine, University of Alberta , Edmonton, Alberta , Canada.,Mazankowski Alberta Heart Institute, University of Alberta , Edmonton, Alberta , Canada
| | - Ratnadeep Basu
- Division of Cardiology, Department of Medicine, University of Alberta , Edmonton, Alberta , Canada.,Mazankowski Alberta Heart Institute, University of Alberta , Edmonton, Alberta , Canada
| | - Mengcheng Shen
- Department of Physiology, University of Alberta , Edmonton, Alberta , Canada
| | - Vaibhav B Patel
- Division of Cardiology, Department of Medicine, University of Alberta , Edmonton, Alberta , Canada.,Mazankowski Alberta Heart Institute, University of Alberta , Edmonton, Alberta , Canada
| | - Zamaneh Kassiri
- Mazankowski Alberta Heart Institute, 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
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