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Saraste A, Ståhle M, Roivainen A, Knuuti J. Molecular Imaging of Heart Failure: An Update and Future Trends. Semin Nucl Med 2024; 54:674-685. [PMID: 38609753 DOI: 10.1053/j.semnuclmed.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024]
Abstract
Molecular imaging can detect and quantify pathophysiological processes underlying heart failure, complementing evaluation of cardiac structure and function with other imaging modalities. Targeted tracers have enabled assessment of various cellular and subcellular mechanisms of heart failure aiming for improved phenotyping, risk stratification, and personalized therapy. This review outlines the current status of molecular imaging in heart failure, accompanied with discussion on novel developments. The focus is on radionuclide methods with data from clinical studies. Imaging of myocardial metabolism can identify left ventricle dysfunction caused by myocardial ischemia that may be reversible after revascularization in the presence of viable myocardium. In vivo imaging of active inflammation and amyloid deposition have an established role in the detection of cardiac sarcoidosis and transthyretin amyloidosis. Innervation imaging has well documented prognostic value in predicting heart failure progression and arrhythmias. Tracers specific for inflammation, angiogenesis and myocardial fibrotic activity are in earlier stages of development, but have demonstrated potential value in early characterization of the response to myocardial injury and prediction of cardiac function over time. Early detection of disease activity is a key for transition from medical treatment of clinically overt heart failure towards a personalized approach aimed at supporting repair and preventing progressive cardiac dysfunction.
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Affiliation(s)
- Antti Saraste
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland; Heart Center, Turku University Hospital and University of Turku, Turku, Finland.
| | - Mia Ståhle
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland
| | - Anne Roivainen
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland
| | - Juhani Knuuti
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland
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2
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Meani P, Todaro S, Veronese G, Kowalewski M, Montisci A, Protti I, Marchese G, Meuwese C, Lorusso R, Pappalardo F. Science of left ventricular unloading. Perfusion 2024:2676591241268389. [PMID: 39058419 DOI: 10.1177/02676591241268389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
The concept of left ventricular unloading has its foundation in heart physiology. In fact, the left ventricular mechanics and energetics represent the cornerstone of this approach. The novel sophisticated therapies for acute heart failure, particularly mechanical circulatory supports, strongly impact on the mechanical functioning and energy consuption of the heart, ultimately affecting left ventricle loading. Notably, extracorporeal circulatory life support which is implemented for life-threatening conditions, may even overload the left heart, requiring additional unloading strategies. As a consequence, the understanding of ventricular overload, and the associated potential unloading strategies, founds its utility in several aspects of day-by-day clinical practice. Emerging clinical and pre-clinical research on left ventricular unloading and its benefits in heart failure and recovery has been conducted, providing meaningful insights for therapeutical interventions. Here, we review the current knowledge on left ventricular unloading, from physiology and molecular biology to its application in heart failure and recovery.
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Affiliation(s)
- Paolo Meani
- Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical Centre, Maastricht, The Netherlands
- Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands
- Thoracic Research Center, Innovative Medical Forum, Collegium Medicum Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Serena Todaro
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Giacomo Veronese
- Anesthesia and Cardiovascular Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Mariusz Kowalewski
- Thoracic Research Center, Innovative Medical Forum, Collegium Medicum Nicolaus Copernicus University, Bydgoszcz, Poland
- Department of Cardiac Surgery, Central Clinical Hospital of the Ministry of Interior, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Andrea Montisci
- Cardiothoracic Department, Division of Cardiothoracic Intensive Care, ASST Spedali Civili, Brescia, Italy
| | - Ilaria Protti
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Giuseppe Marchese
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Christiaan Meuwese
- Department of Intensive Care and Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Roberto Lorusso
- Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical Centre, Maastricht, The Netherlands
- Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands
| | - Federico Pappalardo
- Cardiothoracic and Vascular Anesthesia and Intensive Care, Azienda Ospedaliera Santi Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
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Protti I, van Steenwijk MPJ, Meani P, Fresiello L, Meuwese CL, Donker DW. Left Ventricular Unloading in Extracorporeal Membrane Oxygenation: A Clinical Perspective Derived from Basic Cardiovascular Physiology. Curr Cardiol Rep 2024; 26:661-667. [PMID: 38713362 PMCID: PMC11236850 DOI: 10.1007/s11886-024-02067-w] [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] [Accepted: 04/23/2024] [Indexed: 05/08/2024]
Abstract
PURPOSE OF REVIEW To present an abridged overview of the literature and pathophysiological background of adjunct interventional left ventricular unloading strategies during veno-arterial extracorporeal membrane oxygenation (V-A ECMO). From a clinical perspective, the mechanistic complexity of such combined mechanical circulatory support often requires in-depth physiological reasoning at the bedside, which remains a cornerstone of daily practice for optimal patient-specific V-A ECMO care. RECENT FINDINGS Recent conventional clinical trials have not convincingly shown the superiority of V-A ECMO in acute myocardial infarction complicated by cardiogenic shock as compared with medical therapy alone. Though, it has repeatedly been reported that the addition of interventional left ventricular unloading to V-A ECMO may improve clinical outcome. Novel approaches such as registry-based adaptive platform trials and computational physiological modeling are now introduced to inform clinicians by aiming to better account for patient-specific variation and complexity inherent to V-A ECMO and have raised a widespread interest. To provide modern high-quality V-A ECMO care, it remains essential to understand the patient's pathophysiology and the intricate interaction of an individual patient with extracorporeal circulatory support devices. Innovative clinical trial design and computational modeling approaches carry great potential towards advanced clinical decision support in ECMO and related critical care.
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Affiliation(s)
- I Protti
- Departments of Cardiology and Intensive Care, Erasmus University Medical Center, Rotterdam, the Netherlands
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - M P J van Steenwijk
- Departments of Cardiology and Intensive Care, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - P Meani
- Maastricht University Medical Center+, Cardiothoracic Surgery, Heart and Vascular Center, Maastricht, the Netherlands
| | - L Fresiello
- Cardiovascular and Respiratory Physiology, TechMed Center, University of Twente, Hallenweg 5, 7522, NH, Enschede, The Netherlands
| | - C L Meuwese
- Departments of Cardiology and Intensive Care, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - D W Donker
- Cardiovascular and Respiratory Physiology, TechMed Center, University of Twente, Hallenweg 5, 7522, NH, Enschede, The Netherlands.
- Intensive Care Center, University Medical Center Utrecht, Utrecht, the Netherlands.
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Zhong J, Chen H, Liu Q, Zhou S, Liu Z, Xiao Y. GLP-1 receptor agonists and myocardial metabolism in atrial fibrillation. J Pharm Anal 2024; 14:100917. [PMID: 38799233 PMCID: PMC11127228 DOI: 10.1016/j.jpha.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 10/15/2023] [Accepted: 12/07/2023] [Indexed: 05/29/2024] Open
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia. Many medical conditions, including hypertension, diabetes, obesity, sleep apnea, and heart failure (HF), increase the risk for AF. Cardiomyocytes have unique metabolic characteristics to maintain adenosine triphosphate production. Significant changes occur in myocardial metabolism in AF. Glucagon-like peptide-1 receptor agonists (GLP-1RAs) have been used to control blood glucose fluctuations and weight in the treatment of type 2 diabetes mellitus (T2DM) and obesity. GLP-1RAs have also been shown to reduce oxidative stress, inflammation, autonomic nervous system modulation, and mitochondrial function. This article reviews the changes in metabolic characteristics in cardiomyocytes in AF. Although the clinical trial outcomes are unsatisfactory, the findings demonstrate that GLP-1 RAs can improve myocardial metabolism in the presence of various risk factors, lowering the incidence of AF.
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Affiliation(s)
- Jiani Zhong
- Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Xiangya School of Medicine, Central South University, Changsha, 410008, China
| | - Hang Chen
- Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Xiangya School of Medicine, Central South University, Changsha, 410008, China
| | - Qiming Liu
- Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Shenghua Zhou
- Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Zhenguo Liu
- Center for Precision Medicine and Division of Cardiovascular Medicine, Department of Medicine, School of Medicine, University of Missouri, Columbia, MO, 65211, USA
| | - Yichao Xiao
- Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China
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5
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Milyukov VE, Bryukhanov VA, Nguyen CC. [Morphofunctional Analysis of the Role of Epicardial Adipose Tissue in the Formation of the Obesity Paradox in Chronic Heart Failure]. KARDIOLOGIIA 2024; 64:72-80. [PMID: 38597765 DOI: 10.18087/cardio.2024.3.n2469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/31/2023] [Accepted: 06/15/2023] [Indexed: 04/11/2024]
Abstract
Based on the available modern medical literature, the article summarizes data on the morpho-functional significance of epicardial adipose tissue (EAT) in health and heart failure, analyzes the likelihood and reliability of the formation of the obesity paradox, and also discusses its possible morpho-functional mechanisms. The authors reviewed and analyzed the consequences of the obesity paradox in the aspect of the normal EAT phenotype protectivity. The review proposed ways of further research in this direction aimed at a deep anatomical and physiological analysis and at determining the morpho-functional role of EAT in the adaptive mechanisms of myocardial trophic provision, which may be an important part of the pathogenetic connection between obesity and CHF and, therefore, can improve outcomes in such patients.
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Affiliation(s)
- V E Milyukov
- Pirogov Russian National Research Medical University
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Slart RHJA, Bengel FM, Akincioglu C, Bourque JM, Chen W, Dweck MR, Hacker M, Malhotra S, Miller EJ, Pelletier-Galarneau M, Packard RRS, Schindler TH, Weinberg RL, Saraste A, Slomka PJ. Total-Body PET/CT Applications in Cardiovascular Diseases: A Perspective Document of the SNMMI Cardiovascular Council. J Nucl Med 2024:jnumed.123.266858. [PMID: 38388512 DOI: 10.2967/jnumed.123.266858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/11/2024] [Indexed: 02/24/2024] Open
Abstract
Digital PET/CT systems with a long axial field of view have become available and are emerging as the current state of the art. These new camera systems provide wider anatomic coverage, leading to major increases in system sensitivity. Preliminary results have demonstrated improvements in image quality and quantification, as well as substantial advantages in tracer kinetic modeling from dynamic imaging. These systems also potentially allow for low-dose examinations and major reductions in acquisition time. Thereby, they hold great promise to improve PET-based interrogation of cardiac physiology and biology. Additionally, the whole-body coverage enables simultaneous assessment of multiple organs and the large vascular structures of the body, opening new opportunities for imaging systemic mechanisms, disorders, or treatments and their interactions with the cardiovascular system as a whole. The aim of this perspective document is to debate the potential applications, challenges, opportunities, and remaining challenges of applying PET/CT with a long axial field of view to the field of cardiovascular disease.
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Affiliation(s)
- Riemer H J A Slart
- Medical Imaging Centre, Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
- Biomedical Photonic Imaging Group, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Frank M Bengel
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - Cigdem Akincioglu
- Division of Nuclear Medicine, Medical Imaging, Western University, London, Ontario, Canada
| | - Jamieson M Bourque
- Departments of Medicine (Cardiology) and Radiology, University of Virginia, Charlottesville, Virginia
| | - Wengen Chen
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Marc R Dweck
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Heart Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Marcus Hacker
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | | | - Edward J Miller
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut; Department of Radiology and Biomedical Imaging, Yale School of Medicine, and Department of Internal Medicine, Yale University, New Haven, Connecticut
| | | | - René R S Packard
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Thomas H Schindler
- Mallinckrodt Institute of Radiology, Division of Nuclear Medicine, Cardiovascular Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Richard L Weinberg
- Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Antti Saraste
- Turku PET Centre and Heart Center, Turku University Hospital and University of Turku, Turku, Finland; and
| | - Piotr J Slomka
- Division of Artificial Intelligence in Medicine, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
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Olsen FJ, Skaarup KG, Lassen MCH, Johansen ND, Jensen GB, Schnohr P, Marott JL, Søgaard P, Gislason G, Svendsen JH, Møgelvang R, Aalen JM, Smiseth OA, Remme EW, Biering-Sørensen T. Association between myocardial work indices and cardiovascular events according to hypertension in the general population. Eur Heart J Cardiovasc Imaging 2024; 25:413-424. [PMID: 37930752 DOI: 10.1093/ehjci/jead292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023] Open
Abstract
AIMS Pressure-strain loop (PSL) analysis is a novel echocardiographic tool capable of assessing myocardial work non-invasively. In this study, we aim to evaluate the prognostic value of myocardial work indices in the general population. METHODS AND RESULTS This was a prospective community-based cohort study (n = 4466). PSL analyses were performed to acquire global work index (GWI), global constructive work (GCW), global wasted work, and global work efficiency (GWE). The endpoint was a composite of heart failure or cardiovascular death (HF/CVD). Survival analysis was applied. A total of 3932 participants were included in this analysis (median age: 58 years, 43% men). Of these, 124 (3%) experienced the outcome during a median follow-up period of 3.5 years [interquartile range (IQR): 2.6-4.4 years]. Hypertension significantly modified the association between all work indices and outcome (P for interaction < 0.05), such that work indices posed a higher risk of outcome in non-hypertensive than in hypertensive participants. After adjusting for Atherosclerosis Risk in Communities (ARIC)-HF risk variables, all work indices predicted outcome in non-hypertensive participants, but only GWI, GCW, and GWE predicted outcome in hypertensive participants [GWI: hazard ratio (HR) = 1.12 (1.07-1.16), per 100 mmHg% decrease; GCW: HR = 1.12 (1.08-1.17), per 100 mmHg% decrease; GWE: HR = 1.08 (1.04-1.12), per 1% decrease]. Only GWE significantly increased C-statistics when added to ARIC-HF risk variables in hypertensive participants (C-stat 0.865 vs. 0.877, P for increment = 0.003). CONCLUSION Hypertension modifies the association between myocardial work indices and HF/CVD in the general population. All work indices are associated with outcome in normotensive participants. GWI, GCW, and GWE are independently associated with outcome in hypertension, but only GWE improves risk prediction.
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Affiliation(s)
- Flemming Javier Olsen
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, Gentofte Hospitalsvej 1, Hellerup 2900, Denmark
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen 2200, Denmark
| | - Kristoffer Grundtvig Skaarup
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, Gentofte Hospitalsvej 1, Hellerup 2900, Denmark
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
| | - Mats Christian Højbjerg Lassen
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, Gentofte Hospitalsvej 1, Hellerup 2900, Denmark
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
| | - Niklas Dyrby Johansen
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, Gentofte Hospitalsvej 1, Hellerup 2900, Denmark
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen 2200, Denmark
| | - Gorm Boje Jensen
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
| | - Peter Schnohr
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
| | - Jacob Louis Marott
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
| | - Peter Søgaard
- Department of Cardiology, Copenhagen University Hospital-North Zealand, Dyrehavevej 29, Hilleroed 3400, Denmark
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen 2200, Denmark
| | - Gunnar Gislason
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, Gentofte Hospitalsvej 1, Hellerup 2900, Denmark
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen 2200, Denmark
| | - Jesper Hastrup Svendsen
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen 2200, Denmark
- Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Blegdamsvej 9, Copenhagen 2100, Denmark
| | - Rasmus Møgelvang
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen 2200, Denmark
- Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Blegdamsvej 9, Copenhagen 2100, Denmark
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Campusvej 55, Odense 5230, Denmark
| | - John Moene Aalen
- Institute for Surgical Research, Oslo University Hospital and University of Oslo, Rikshospitalet, Sognsvannsveien 20, Oslo 0372, Norway
| | - Otto Armin Smiseth
- Institute for Surgical Research, Oslo University Hospital and University of Oslo, Rikshospitalet, Sognsvannsveien 20, Oslo 0372, Norway
| | - Espen Wattenberg Remme
- Institute for Surgical Research, Oslo University Hospital and University of Oslo, Rikshospitalet, Sognsvannsveien 20, Oslo 0372, Norway
- The Intervention Centre, Oslo University Hospital, Rikshospitalet, Sognsvannsveien 20, Oslo 0372, Norway
| | - Tor Biering-Sørensen
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, Gentofte Hospitalsvej 1, Hellerup 2900, Denmark
- The Copenhagen City Heart Study, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen 2200, Denmark
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D'Ávila LBO, Milani M, Le Bihan DCS, de Lima ACGB, Milani JGPO, Cipriano GFB, da Silva VZM, Cipriano G. Longitudinal strain and myocardial work in symptomatic patients having recovered from COVID-19 and possible associations with the severity of the disease. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2024:10.1007/s10554-023-03042-2. [PMID: 38277026 DOI: 10.1007/s10554-023-03042-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/24/2023] [Indexed: 01/27/2024]
Abstract
COVID-19 may have residual consequences in multiple organs, including the cardiovascular system. The purpose of the present investigation is to quantify myocardial function in symptomatic individuals with long COVID and investigate the association between illness severity and myocardial function. A retrospective cross-sectional study was conducted in which symptomatic individuals with previous COVID-19 underwent echocardiographic analysis of left ventricle global longitudinal strain (LVGLS) and myocardial work (MW). Individuals also performed cardiopulmonary testing (CPX) to assess peak oxygen uptake (VO2peak). Differences between illness severity subgroups were analyzed by the Mann-Whitney test. Correlations were calculated using the Spearman correlation test. Multilinear regressions were performed to evaluate the influences of COVID-19 severity, body mass index, age, and sex on MW. Fifty-six individuals were included (critical subgroup: 17; moderate/severe subgroup: 39), 59% females; median age: 56 years (IQR: 43-63). CPX revealed a substantial reduction in VO2peak (median of 53% of predicted values). LVGLS were not statistically different between subgroups. Global wasted work (GWW) was higher in the critical subgroup [146 (104-212) versus 121 (74-163) mmHg%, p = 0.01], and global work efficiency (GWE) was lower in this subgroup [93 (91-95) versus 94 (93-96), p = 0.03]. Illness severity was the only independent predictor of GWW and GWE (GWW: r2 = 0.167; p = 0.009; GWE: r2 = 0.172; p = 0.005) in multilinear regressions. In our study with long COVID-19 individuals, despite having a similar LVGLS, patients had subclinical LV dysfunction, demonstrated only by an increase in GWW and a decrease in GWE.
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Affiliation(s)
- Luciana Bartolomei Orru D'Ávila
- Health Sciences and Technologies Graduate Program, University of Brasilia (UnB), Brasilia, DF, Brazil.
- Medcor, CLSW 105 Bloco A salas 37 a 39 Sudoeste, Brasilia, DF, CEP: 70670431, Brazil.
| | - Mauricio Milani
- Health Sciences and Technologies Graduate Program, University of Brasilia (UnB), Brasilia, DF, Brazil
- Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium
- Rehabilitation Sciences Program, University of Brasilia (UnB), Brasilia, DF, Brazil
| | - David C S Le Bihan
- University of São Paulo | USP Heart Institute São Paulo (InCor), São Paulo, SP, Brazil
| | | | - Juliana Goulart Prata Oliveira Milani
- Health Sciences and Technologies Graduate Program, University of Brasilia (UnB), Brasilia, DF, Brazil
- REVAL/BIOMED, Hasselt University, Hasselt, Belgium
| | - Graziella França Bernardelli Cipriano
- Health Sciences and Technologies Graduate Program, University of Brasilia (UnB), Brasilia, DF, Brazil
- Rehabilitation Sciences Program, University of Brasilia (UnB), Brasilia, DF, Brazil
| | | | - Gerson Cipriano
- Health Sciences and Technologies Graduate Program, University of Brasilia (UnB), Brasilia, DF, Brazil
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9
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Protti I, van den Enden A, Van Mieghem NM, Meuwese CL, Meani P. Looking Back, Going Forward: Understanding Cardiac Pathophysiology from Pressure-Volume Loops. BIOLOGY 2024; 13:55. [PMID: 38275731 PMCID: PMC10813445 DOI: 10.3390/biology13010055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Knowing cardiac physiology is essential for health care professionals working in the cardiovascular field. Pressure-volume loops (PVLs) offer a unique understanding of the myocardial working and have become pivotal in complex pathophysiological scenarios, such as profound cardiogenic shock or when mechanical circulatory supports are implemented. This review provides a comprehensive summary of the left and right ventricle physiology, based on the PVL interpretation.
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Affiliation(s)
- Ilaria Protti
- Department of Intensive Care and Cardiology, Cardiovascular Institute, Thoraxcenter, Erasmus University Medical Center, 3012 Rotterdam, The Netherlands; (I.P.)
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, 20122 Milan, Italy
| | - Antoon van den Enden
- Department of Intensive Care and Cardiology, Cardiovascular Institute, Thoraxcenter, Erasmus University Medical Center, 3012 Rotterdam, The Netherlands; (I.P.)
| | - Nicolas M. Van Mieghem
- Department of Intensive Care and Cardiology, Cardiovascular Institute, Thoraxcenter, Erasmus University Medical Center, 3012 Rotterdam, The Netherlands; (I.P.)
| | - Christiaan L. Meuwese
- Department of Intensive Care and Cardiology, Cardiovascular Institute, Thoraxcenter, Erasmus University Medical Center, 3012 Rotterdam, The Netherlands; (I.P.)
| | - Paolo Meani
- Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical Centre, 6229 Maastricht, The Netherlands
- Faculty of Health, Medicine and Life Sciences, Maastricht University, 6211 Maastricht, The Netherlands
- Thoracic Research Center, Innovative Medical Forum, Collegium Medicum Nicolaus Copernicus University, 85-094 Bydgoszcz, Poland
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10
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Baenen O, Carreño-Martínez AC, Abraham TP, Rugonyi S. Energetics of Cardiac Blood Flow in Hypertrophic Cardiomyopathy through Individualized Computational Modeling. J Cardiovasc Dev Dis 2023; 10:411. [PMID: 37887858 PMCID: PMC10607792 DOI: 10.3390/jcdd10100411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is a congenital heart disease characterized by thickening of the heart's left ventricle (LV) wall that can lead to cardiac dysfunction and heart failure. Ventricular wall thickening affects the motion of cardiac walls and blood flow within the heart. Because abnormal cardiac blood flow in turn could lead to detrimental remodeling of heart walls, aberrant ventricular flow patterns could exacerbate HCM progression. How blood flow patterns are affected by hypertrophy and inter-patient variability is not known. To address this gap in knowledge, we present here strategies to generate personalized computational fluid dynamics (CFD) models of the heart LV from patient cardiac magnetic resonance (cMR) images. We performed simulations of CFD LV models from three cases (one normal, two HCM). CFD computations solved for blood flow velocities, from which flow patterns and the energetics of flow within the LV were quantified. We found that, compared to a normal heart, HCM hearts exhibit anomalous flow patterns and a mismatch in the timing of energy transfer from the LV wall to blood flow, as well as changes in kinetic energy flow patterns. While our results are preliminary, our presented methodology holds promise for in-depth analysis of HCM patient hemodynamics in clinical practice.
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Affiliation(s)
- Owen Baenen
- Department of Mechanical Engineering, Rice University, Houston, TX 77005, USA;
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97239, USA
| | - Angie Carolina Carreño-Martínez
- USCF HCM Center, Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, CA 94158, USA (T.P.A.)
| | - Theodore P. Abraham
- USCF HCM Center, Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, CA 94158, USA (T.P.A.)
| | - Sandra Rugonyi
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97239, USA
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11
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Saraste A, Knuuti J, Bengel F. Phenotyping heart failure by nuclear imaging of myocardial perfusion, metabolism, and molecular targets. Eur Heart J Cardiovasc Imaging 2023; 24:1318-1328. [PMID: 37294318 PMCID: PMC10531130 DOI: 10.1093/ehjci/jead128] [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: 05/19/2023] [Accepted: 05/26/2023] [Indexed: 06/10/2023] Open
Abstract
Nuclear imaging techniques can detect and quantify pathophysiological processes underlying heart failure, complementing evaluation of cardiac structure and function with other imaging modalities. Combined imaging of myocardial perfusion and metabolism can identify left ventricle dysfunction caused by myocardial ischaemia that may be reversible after revascularization in the presence of viable myocardium. High sensitivity of nuclear imaging to detect targeted tracers has enabled assessment of various cellular and subcellular mechanisms of heart failure. Nuclear imaging of active inflammation and amyloid deposition is incorporated into clinical management algorithms of cardiac sarcoidosis and amyloidosis. Innervation imaging has well-documented prognostic value with respect to heart failure progression and arrhythmias. Emerging tracers specific for inflammation and myocardial fibrotic activity are in earlier stages of development but have demonstrated potential value in early characterization of the response to myocardial injury and prediction of adverse left ventricular remodelling. Early detection of disease activity is a key for transition from broad medical treatment of clinically overt heart failure towards a personalized approach aimed at supporting repair and preventing progressive failure. This review outlines the current status of nuclear imaging in phenotyping heart failure and combines it with discussion on novel developments.
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Affiliation(s)
- Antti Saraste
- Turku PET Centre, Turku University Hospital and University of Turku, Kiinamyllynkatu 4–8, 20520 Turku, Finland
- Heart Center, Turku University Hospital and University of Turku, Hämeentie 11, 20520 Turku, Finland
| | - Juhani Knuuti
- Turku PET Centre, Turku University Hospital and University of Turku, Kiinamyllynkatu 4–8, 20520 Turku, Finland
| | - Frank Bengel
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
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12
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Piao SF, Cong J, Li R, Song GH, Li Y, Xu L. Evaluating the characteristics of myocardial work by two-dimensional echocardiography during pre-eclampsia pregnancy. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2023; 39:1621-1629. [PMID: 37318675 DOI: 10.1007/s10554-023-02844-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/22/2023] [Indexed: 06/16/2023]
Abstract
This study aimed to analyze the changes in myocardial work (MyW) properties and the correlation of MyW with cardiovascular and clinical indices during the pre-eclampsia (PE) pregnancy. Standard two-dimensional and speckle-tracking echocardiography were sequentially performed on 77 women with PE and 89 with normal pregnancy. Four components of MyW: global myocardial work index (GWI), constructive work (GCW), wasted work (GWW), and work efficiency (GWE) were measured. The significant increased GWI, GCW and GWW were observed, while GWW elevated more than GCW with consequently resulting the decline in GWE among PE cases. Although there was a diverse relationship between MyW components and LV morphological as well as functional indices, MyW parameters were significantly correlated with the grades of arterial hypertension and the incidence of adverse outcome of PE. With the hypertension stages, GWI, GCW and GWW gradually increased but GWE decreased. Meanwhile, the higher GWI and GCW and the lower GWE, the more adverse events occurred in PE group. In conclusion, during the PE pregnancy, GWI, GCW and GWW increase, while GWW elevates more than GCW, which leads to the decrease in GWE. Moreover, the changes in MyW are associated with the hypertension grades and the poor prognosis in PE. The non-invasive manner for MyW assessment provides a new perspective on the myocardial biomechanics, cardio-metabolic conditions and pathophysiological changes in the condition of PE.
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Affiliation(s)
- Shun-Fu Piao
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
| | - Juan Cong
- Department of Ultrasound, Henan Provincial People's Hospital Heart Center, Fuwai Central China Cardiovascular Hospital, Fuwai Central China Hospital of Zhengzhou University, the People's Hospital of Zhengzhou University, Zhengzhou, China.
| | - Rong Li
- Department of Echocardiography, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Guang-Hui Song
- Clinical laboratory, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Yong Li
- Department of Echocardiography, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Lin Xu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
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13
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Pulsatile energy consumption as a surrogate marker for vascular afterload improves with time post transcatheter aortic valve replacement in patients with aortic stenosis. Hypertens Res 2023; 46:730-741. [PMID: 36575229 PMCID: PMC9793818 DOI: 10.1038/s41440-022-01127-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/15/2022] [Accepted: 11/22/2022] [Indexed: 12/28/2022]
Abstract
The effect of arterial stiffening on elevated pulsatile left ventricular afterload patients with aortic stenosis (AS) is pronounced beyond systemic hypertension. Circulatory afterload pulsatile efficiency (CAPE) is a marker of vascular function, defined as the ratio of steady state energy consumption (SEC) to maintain systemic circulation and pulsatile energy consumption (PEC). Twenty patients aged 80 ± 7 years were assessed at baseline and a median of 60 days post transcatheter aortic valve replacement (TAVR), with pulsatile vascular load calculated using simultaneous radial applanation tonometry derived aortic pressure and cardiac magnetic resonance phase-contrast imaging derived ascending aortic flow. Eight out of 20 patients had a reduction in PEC post TAVR, and the reduction of PEC correlated strongly with the number of days post TAVR (R = 0.62, P < 0.01). Patients assessed within the 100 days of TAVR had a rise in their PEC when compared to baseline (0.19 ± 0.09 vs 0.14 ± 0.08 W, P = 0.04). Baseline PEC correlated moderately with baseline SEC (R = 0.49, P = 0.03), and a high baseline PEC was predictive of post TAVR PEC reduction (R = 0.54, P =0.01). Overall, no significant differences were found between baseline and post TAVR for systolic aortic pressure (131 ± 20 vs 131 ± 20 mmHg), systemic vascular resistance (1894 ± 493 vs 2015 ± 519 dynes.s/cm5), aortic valve ejection time (337 ± 22 vs 324 ± 34 ms) or aortic characteristic impedance (120 ± 48 vs 107 ± 41 dynes.s/cm5). Improved flow profiles after TAVR likely unmask the true vascular properties by altering ventriculo-valvulo-arterial coupling, leading to downstream vascular remodelling secondary to flow conditioning, and results in eventual improvement of pulsatile afterload as reflected by our proposed index of CAPE.
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14
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Flachskampf FA, Baron T. The Role of Novel Cardiac Imaging for Contemporary Management of Heart Failure. J Clin Med 2022; 11:6201. [PMID: 36294522 PMCID: PMC9605302 DOI: 10.3390/jcm11206201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/10/2022] [Accepted: 10/16/2022] [Indexed: 11/26/2022] Open
Abstract
Heart failure is becoming the central problem in cardiology. Its recognition, differential diagnosis, and the monitoring of therapy are intimately coupled with cardiac imaging. Cardiac imaging has witnessed an explosive growth and differentiation, with echocardiography continuing as the first diagnostic step; the echocardiographic exam itself has become considerably more complex than in the last century, with the assessment of diastolic left ventricular function and strain imaging contributing important information, especially in heart failure. Very often, however, echocardiography can only describe the fact of functional impairment and morphologic remodeling, whereas further clarification of the underlying disease, such as cardiomyopathy, myocarditis, storage diseases, sarcoidosis, and others, remains elusive. Here, cardiovascular magnetic resonance and perfusion imaging should be used judiciously to arrive as often as possible at a clear diagnosis which ideally enables specific therapy.
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Affiliation(s)
- Frank A. Flachskampf
- Department of Medical Sciences, Cardiology and Clinical Physiology, Uppsala University Hospital, Uppsala University, 751 85 Uppsala, Sweden
| | - Tomasz Baron
- Department of Medical Sciences, Cardiology and Clinical Physiology, Uppsala University Hospital, Uppsala University, 751 85 Uppsala, Sweden
- Uppsala Clinical Research Center, Uppsala University, 752 36 Uppsala, Sweden
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15
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Flachskampf FA, Chandrashekar Y. Myocardial Work and Work Index: Related But Different for Clinical Usage. JACC. CARDIOVASCULAR IMAGING 2022; 15:1521-1523. [PMID: 35926913 DOI: 10.1016/j.jcmg.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Wang W, Zhao H, Wan F, Shen XD, Ding S, Pu J. Inhomogeneous Distribution of Regional Myocardial Work Efficiency Predicts Early Left Ventricular Remodeling After Acute Anterior Myocardial Infarction Treated With Primary Percutaneous Intervention. Front Cardiovasc Med 2022; 9:922567. [PMID: 35966524 PMCID: PMC9363585 DOI: 10.3389/fcvm.2022.922567] [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: 04/18/2022] [Accepted: 06/06/2022] [Indexed: 11/23/2022] Open
Abstract
Background This study aimed to investigate the hypothesis that specific pattern of myocardial work (MW) distribution in patients with acute anterior ST-segment elevation myocardial infarction (STEMI) could provide prognostic value for predicting left ventricular (LV) remodeling. Methods A total of 98 first anterior wall STEMI patients treated with primary percutaneous coronary intervention [85 men (86.7%), mean age: 58 ± 12 years] were enrolled. Transthoracic echocardiography was performed 24–72 h after angioplasty and during 3-month follow-up. MW was estimated from the left ventricular pressure–strain loop derived from speckle tracking echocardiography and simultaneous noninvasive brachial artery cuff pressure. The primary endpoint was early LV remodeling, defined as an increase in LV end-diastolic volume ≥20% compared with baseline at 3 months after STEMI. Major adverse cardiac events and combined clinical outcomes were recorded. Results LV remodeling was present in 32 patients (33%), who exhibited lower global and culprit-regional work index (WI), constructive work (CW), work efficiency (WE), and specifically, greater differences of WE (delta-WE) and CW (delta-CW) between the culprit and non-culprit region than those without LV remodeling both at the acute phase and follow-up (all P < 0.0125). During follow-up, all global and regional WI, CW, and WE were improved (P < 0.0125 compared with baseline), with less improvement in patients with LV remodeling. In multivariate analysis, baseline delta-WE (odds ratio: 2.304; 95% CI: 1.093–4.856, P = 0.028) and peak troponin I level (odds ratio: 1.035; 95%CI: 1.008–1.063, P = 0.010) were independently associated with early LV remodeling. Patients with greater delta-WE at baseline were associated with a higher incidence of heart failure and combined clinical outcomes during follow-up. Conclusion After reperfused acute anterior STEMI, patients with LV remodeling presented with more inhomogeneous MW distribution. The absolute difference of WE between culprit and non-culprit territory at the acute phase is an independent predictor for early LV remodeling. Clinical Trial Registration www.ClinicalTrials.gov, identifier: NCT05107102.
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17
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Hong GH, Hays AG, Gilotra NA. The Evolving Role of Echocardiography During the Coronavirus Disease 2019 Pandemic. Heart Int 2022; 16:28-36. [PMID: 36275350 PMCID: PMC9524667 DOI: 10.17925/hi.2022.16.1.28] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/19/2022] [Indexed: 04/12/2024] Open
Abstract
Coronavirus disease 2019 (COVID-19) has been associated with a wide spectrum of cardiovascular manifestations. Since the beginning of the pandemic, echocardiography has served as a valuable tool for triaging, diagnosing and managing patients with COVID-19. More recently, speckle-tracking echocardiography has been shown to be effective in demonstrating subclinical myocardial dysfunction that is often not detected in standard echocardiography. Echocardiographic findings in COVID-19 patients include left or right ventricular dysfunction, including abnormal longitudinal strain and focal wall motion abnormalities, valvular dysfunction and pericardial effusion. Additionally, some of these echocardiographic abnormalities have been shown to correlate with biomarkers and adverse clinical outcomes, suggesting an additional prognostic value of echocardiography. With increasing evidence of cardiac sequelae of COVID-19, the use of echocardiography has expanded to patients with cardiopulmonary symptoms after recovery from initial infection. This article aims to highlight the available echocardiographic tools and to summarize the echocardiographic findings across the full spectrum of COVID-19 disease and their correlations with biomarkers and mortality.
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Affiliation(s)
- Gloria H Hong
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allison G Hays
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nisha A Gilotra
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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18
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Luong TV, Abild CB, Bangshaab M, Gormsen LC, Søndergaard E. Ketogenic Diet and Cardiac Substrate Metabolism. Nutrients 2022; 14:nu14071322. [PMID: 35405935 PMCID: PMC9003554 DOI: 10.3390/nu14071322] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/16/2022] [Accepted: 03/19/2022] [Indexed: 02/07/2023] Open
Abstract
The ketogenic diet (KD) entails a high intake of fat, moderate intake of protein, and a very limited intake of carbohydrates. Ketogenic dieting has been proposed as an effective intervention for type 2 diabetes and obesity since glycemic control is improved and sustained weight loss can be achieved. Interestingly, hyperketonemia is also associated with beneficial cardiovascular effects, possibly caused by improved cardiac energetics and reduced oxygen use. Therefore, the KD has the potential to both treat and prevent cardiovascular disease. However, the KD has some adverse effects that could counteract the beneficial cardiovascular properties. Of these, hyperlipidemia with elevation of triglycerides and LDL cholesterol levels are the most important. In addition, poor diet adherence and lack of knowledge regarding long-term effects may also reduce the broader applicability of the KD. The objective of this narrative review is to provide insights into the KD and its effects on myocardial ketone body utilization and, consequently, cardiovascular health.
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Affiliation(s)
- Thien Vinh Luong
- Department of Nuclear Medicine & PET-Centre, Aarhus University Hospital, Palle Juul-Jensens Blvd. 165, 8200 Aarhus, Denmark; (T.V.L.); (L.C.G.)
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Hedeager 3, 8200 Aarhus, Denmark; (C.B.A.); (M.B.)
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Blvd. 82, 8200 Aarhus, Denmark
| | - Caroline Bruun Abild
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Hedeager 3, 8200 Aarhus, Denmark; (C.B.A.); (M.B.)
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Blvd. 82, 8200 Aarhus, Denmark
| | - Maj Bangshaab
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Hedeager 3, 8200 Aarhus, Denmark; (C.B.A.); (M.B.)
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Blvd. 82, 8200 Aarhus, Denmark
| | - Lars Christian Gormsen
- Department of Nuclear Medicine & PET-Centre, Aarhus University Hospital, Palle Juul-Jensens Blvd. 165, 8200 Aarhus, Denmark; (T.V.L.); (L.C.G.)
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Blvd. 82, 8200 Aarhus, Denmark
| | - Esben Søndergaard
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Hedeager 3, 8200 Aarhus, Denmark; (C.B.A.); (M.B.)
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Blvd. 82, 8200 Aarhus, Denmark
- Correspondence: ; Tel.: +45-28730943
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Champigneulle B, Doutreleau S, Baillieul S, Brugniaux JV, Robach P, Bouzat P, Verges S. Changes in cardiac function following a speed ascent to the top of Europe at 4808 m. Eur J Appl Physiol 2022; 122:889-902. [PMID: 35103862 DOI: 10.1007/s00421-022-04895-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/18/2022] [Indexed: 01/21/2023]
Abstract
PURPOSE Both prolonged exercise and acute high-altitude exposure are known to induce cardiac changes. We sought to describe the cardiac responses to speed climbing at high-altitude, including left ventricular (LV) performance assessment using the myocardial work index (MWI), a new index derived from 2D speckle tracking echocardiography (STE). METHODS Eleven elite alpinists (9 males, age: 26 ± 4 years) were evaluated before and immediately after a speed ascent of the Mont-Blanc (4808 m) by echocardiography using conventional measurements as well as STE and MWI computation with derivate parameters as global work efficiency (GWE) or global wasted work (GWW). RESULTS Athletes performed a long-duration (8 h 58 min ± 60 min) and intense (78 ± 4% of maximal heart rate) ascent under gradual hypoxic conditions (minimal SpO2 at 4808 m: 71 ± 4%). Hypoxic exercise-induced cardiac fatigue was observed post-ascent with a change in right ventricular (RV) and LV systolic function (RV fractional area change: - 20 ± 23%, p = 0.01; LV global longitudinal strain change: - 8 ± 9%, p = 0.02), as well as LV geometry and RV-LV interaction alterations with emergence of a D-shape septum in 5/11 (46%) participants associated with RV pressure overload (mean pulmonary arterial pressure change: + 55 ± 20%, p < 0.001). Both MWI and GWE were reduced post-ascent (- 21 ± 16%, p = 0.004 and - 4 ± 4%, p = 0.007, respectively). Relative decrease in MWI and GWE were inversely correlated with increase in GWW (r = - 0.86, p = 0.003 and r = -0.97, p < 0.001, respectively). CONCLUSIONS Prolonged high-altitude speed climbing in elite climbers is associated with RV and LV function changes with a major interaction alteration. MWI, assessing the myocardial performance, could be a new tool for evaluating LV exercise-induced cardiac fatigue.
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Affiliation(s)
- Benoit Champigneulle
- HP2 laboratory, UM Sports Pathologies, Hôpital Sud, Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, CS 10217, 38043 Cedex 9, Grenoble, France.
| | - Stéphane Doutreleau
- HP2 laboratory, UM Sports Pathologies, Hôpital Sud, Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, CS 10217, 38043 Cedex 9, Grenoble, France
| | - Sébastien Baillieul
- HP2 laboratory, UM Sports Pathologies, Hôpital Sud, Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, CS 10217, 38043 Cedex 9, Grenoble, France
| | - Julien Vincent Brugniaux
- HP2 laboratory, UM Sports Pathologies, Hôpital Sud, Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, CS 10217, 38043 Cedex 9, Grenoble, France
| | - Paul Robach
- HP2 laboratory, UM Sports Pathologies, Hôpital Sud, Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, CS 10217, 38043 Cedex 9, Grenoble, France
- National School for Mountain Sports, Site of the National School for Skiing and Mountaineering (ENSA), Chamonix, France
| | - Pierre Bouzat
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, Grenoble, France
| | - Samuel Verges
- HP2 laboratory, UM Sports Pathologies, Hôpital Sud, Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, CS 10217, 38043 Cedex 9, Grenoble, France
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Ersoy İ, Demir FA. Obstructive sleep apnea is associated with depressed myocardial mechanoenergetics. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:162-169. [PMID: 34972252 DOI: 10.1002/jcu.23129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 11/08/2021] [Accepted: 11/21/2021] [Indexed: 06/14/2023]
Abstract
PURPOSE To evaluate the association between the myocardial mechanoenergetic efficiency index (MEEi) and the Apnea-Hypopnea Index (AHI) in the initial phase of obstructive sleep apnea (OSA) diagnosis. METHODS In this cohort study, we included a total of 382 eligible participants without cardiovascular disease in a tertiary outpatient clinic between January 2013 and January 2015. We recorded demographic, clinical, polysomnographic and echocardiographic variables of the patients. In addition, myocardial mechanoenergetic efficiency (MEE) and MEEi were calculated by an echocardiography-derived validated measurement. RESULTS The mean (±SD) age of the participants was 48.47 ± 12.13, and male/female ratio was 287/95. Comparing with non-OSA, MEEi was significantly lower in OSA patients at all stages (0.35 ± 0.08 vs. 0.42 ± 0.05; p < .001). MEEi was negatively correlated with hypertension (r = -0.518, p < .001), body mass index (r = -0.382, p < .001), AHI (r = -0.656, p < .001), total apne (r = -0.525, p < .001), hypopnea (r = -0.415, p < .001), systolic pulmonary pressure (r = -0.318, p < .001), relative wall thickness (RWT; r = -0.415, p < .001), and positive correlated with left ventricular ejection fraction (r = 0.586, p < .001). According to multiple linear regression analysis AHI (β = -0.625, p < .001), total apnea (β = -0.402, p = .001), hypopnea (β = -0.395, p = .001), LV ejection fraction (β = 0.478, p < .001) and RWT (β = -0.279, p < .001) have an independent relationship with MEEi. CONCLUSIONS MEEi was lower in OSA patients. A reduced MEEi may reflect a disturbance in energy use of the myocardium. Consequently, our results may provide insight into the mechanisms leading to structural cardiac diseases in OSA patients.
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Affiliation(s)
- İbrahim Ersoy
- Faculty of Medicine, Department of Cardiology, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
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21
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Cho SG, Kim M, Lee SH, Park KS, Kim J, Moon JB, Song HC. Evaluation of Non-infarct-Related Arteries Using C-11 Acetate PET in STEMI With Multivessel Disease. J Cardiovasc Imaging 2022; 30:169-180. [PMID: 35879252 PMCID: PMC9314231 DOI: 10.4250/jcvi.2021.0189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND We analyzed whether C-11 acetate positron emission tomography (PET) can be used for the evaluation of non-infarct-related artery (NIRA) in patients with ST-elevation myocardial infarction (STEMI) and multivessel disease. METHODS We prospectively enrolled 31 patients with STEMI and at least one NIRA stenosis (diameter stenosis [DS] ≥ 50%). C-11 acetate PET was performed after successful revascularization for the infarct-related artery (IRA). Myocardial blood flow (MBF) and oxidative metabolism (kmono) were measured and compared between NIRA vs. IRA, stenotic (DS ≥ 50%) vs. non-stenotic (DS < 50%) NIRAs, and NIRAs with significant stenosis (DS ≥ 70% or fractional flow reserve [FFR] ≤ 0.80) vs. those without (neither DS ≥ 70% nor FFR ≤ 0.80). The correlations between PET and angiographic parameters were also analyzed. RESULTS MBF and kmono were significantly higher in NIRAs than those in IRAs. Stenotic NIRAs showed significantly reduced stress MBF, myocardial flow reserve (MFR), relative flow reserve (RFR) (0.72 ± 0.12 vs. 0.82 ± 0.14; p = 0.001), and stress kmono, as compared to those in non-stenotic NIRAs. NIRAs with significant stenosis had significantly lower stress MBF, MFR, and RFR (0.70 ± 0.10 vs. 0.80 ± 0.14; p = 0.001). RFR showed the best, but modest linear correlation with DS of NIRA stenosis (r = −0.429, p = 0.001). RFR > 0.81 could effectively exclude the presence of significant NIRA stenosis. CONCLUSIONS C-11 acetate PET could be a feasible alternative noninvasive modality in patients with STEMI and multivessel disease, by excluding the presence of significant NIRA stenosis.
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Affiliation(s)
- Sang-Geon Cho
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Minchul Kim
- Department of Cardiology, Chonnam National University Hospital, Gwangju, Korea
| | - Seung Hun Lee
- Department of Cardiology, Chonnam National University Hospital, Gwangju, Korea
| | - Ki Seong Park
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Jahae Kim
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Jang Bae Moon
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Ho-Chun Song
- Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, Korea
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22
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Hansen KB, Sörensen J, Hansson NH, Nielsen R, Larsen AH, Frøkiær J, Tolbod LP, Gormsen LC, Harms HJ, Wiggers H. Myocardial efficiency in patients with different aetiologies and stages of heart failure. Eur Heart J Cardiovasc Imaging 2021; 23:328-337. [PMID: 34751738 DOI: 10.1093/ehjci/jeab227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/15/2021] [Indexed: 11/12/2022] Open
Abstract
AIMS Myocardial external efficiency (MEE) is the ratio of cardiac work in relation with energy expenditure. We studied MEE in patients with different aetiologies and stages of heart failure (HF) to discover the role and causes of deranged MEE. In addition, we explored the impact of patient characteristics such as sex, body mass index (BMI), and age on myocardial energetics. METHODS AND RESULTS Cardiac energetic profiles were assessed with 11C-acetate positron emission tomography (PET) and left ventricular ejection fraction (LVEF) was acquired with echocardiography. MEE was studied in 121 participants: healthy controls (n = 20); HF patients with reduced (HFrEF; n = 25) and mildly reduced (HFmrEF; n = 23) LVEF; and patients with asymptomatic (AS-asymp; n = 38) and symptomatic (AS-symp; n = 15) aortic stenosis (AS). Reduced MEE coincided with symptoms of HF irrespective of aetiology and declined in tandem with deteriorating LVEF. Patients with AS-symp and HFmrEF had reduced MEE as compared with controls (22.2 ± 4.9%, P = 0.041 and 20.0 ± 4.2%, P < 0.001 vs. 26.1 ± 5.8% in controls) and a further decline was observed in patients with HFrEF (14.7 ± 6.3%, P < 0.001). Disproportionate left ventricular hypertrophy was a major cause of reduced MEE. Female sex (P < 0.001), a lower BMI (P = 0.001), and advanced age (P = 0.03) were associated with a lower MEE. CONCLUSION MEE was reduced in patients with HFrEF, HFmrEF, and HF due to pressure overload and MEE may therefore constitute a treatment target in HF. Patients with LVH, advanced age, female sex, and low BMI had more pronounced reduction in MEE and personalized treatment within these patient subgroups could be relevant.
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Affiliation(s)
- Kristoffer Berg Hansen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus N, Denmark
| | - Jens Sörensen
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus N, Denmark.,Department of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus N, Denmark.,Department of Surgical Sciences, Nuclear Medicine, Uppsala University, Uppsala, Sweden
| | - Nils Henrik Hansson
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark
| | - Roni Nielsen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark
| | - Anders Hostrup Larsen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark
| | - Jørgen Frøkiær
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus N, Denmark
| | - Lars Poulsen Tolbod
- Department of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus N, Denmark
| | - Lars Christian Gormsen
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus N, Denmark.,Department of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus N, Denmark
| | - Hendrik Johannes Harms
- Department of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus N, Denmark
| | - Henrik Wiggers
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus N, Denmark
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23
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Sahiti F, Morbach C, Henneges C, Stefenelli U, Scholz N, Cejka V, Albert J, Heuschmann PU, Ertl G, Frantz S, Angermann CE, Störk S. Dynamics of Left Ventricular Myocardial Work in Patients Hospitalized for Acute Heart Failure. J Card Fail 2021; 27:1393-1403. [PMID: 34332057 DOI: 10.1016/j.cardfail.2021.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/30/2021] [Accepted: 07/13/2021] [Indexed: 02/09/2023]
Abstract
BACKGROUND The left ventricular ejection fraction (LVEF) is the most commonly used measure describing pumping efficiency, but it is heavily dependent on loading conditions and therefore not well-suited to study pathophysiologic changes. The novel concept of echocardiography-derived myocardial work (MyW) overcomes this disadvantage as it is based on LV pressure-strain loops. We tracked the in-hospital changes of indices of MyW in patients admitted for acute heart failure (AHF) in relation to their recompensation status and explored the prognostic utility of MyW indices METHODS AND RESULTS: We studied 126 patients admitted for AHF (mean 73 ± 12 years, 37% female, 40% with a reduced LVEF [<40%]), providing pairs of echocardiograms obtained both on hospital admission and prior to discharge. The following MyW indices were derived: global constructive and wasted work (GCW, GWW), global work index (GWI), and global work efficiency. In patients with HF with reduced ejection fraction with decreasing N-terminal prohormone B-natriuretic peptide levels during hospitalization, the GCW and GWI improved significantly, whereas the GWW remained unchanged. In patients with HF with preserved ejection fraction, the GCW and GWI were unchanged; however, in patients with no decrease or eventual increase in N-terminal prohormone B-natriuretic peptide, we observed an increase in GWW. In all patients with AHF, higher values of GWW were associated with a higher risk of death or rehospitalization within 6 months after discharge (per 10-point increment hazard ratio 1.035, 95% confidence interval 1.005-1.065). CONCLUSIONS Our results suggest differential myocardial responses to decompensation and recompensation, depending on the HF phenotype in patients presenting with AHF. The GWW predicted the 6-month prognosis in these patients, regardless of LVEF. Future studies in larger cohorts need to confirm our results and identify determinants of short-term and longer term changes in MyW.
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Affiliation(s)
- Floran Sahiti
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Department of Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Caroline Morbach
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Department of Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Carsten Henneges
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany
| | - Ulrich Stefenelli
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany
| | - Nina Scholz
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany
| | - Vladimir Cejka
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany
| | - Judith Albert
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Department of Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Peter U Heuschmann
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany; Clinical Trial Center, University Hospital Würzburg, Würzburg, Germany
| | - Georg Ertl
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Department of Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Stefan Frantz
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Department of Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Christiane E Angermann
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Department of Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Stefan Störk
- Comprehensive Heart Failure Center, University Hospital and University of Würzburg, Würzburg, Germany; Department of Medicine I, University Hospital Würzburg, Würzburg, Germany.
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24
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Minhas AS, Gilotra NA, Goerlich E, Metkus T, Garibaldi BT, Sharma G, Bavaro N, Phillip S, Michos ED, Hays AG. Myocardial Work Efficiency, A Novel Measure of Myocardial Dysfunction, Is Reduced in COVID-19 Patients and Associated With In-Hospital Mortality. Front Cardiovasc Med 2021; 8:667721. [PMID: 34195234 PMCID: PMC8236710 DOI: 10.3389/fcvm.2021.667721] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/22/2021] [Indexed: 12/15/2022] Open
Abstract
Background: Although troponin elevation is common in COVID-19, the extent of myocardial dysfunction and its contributors to dysfunction are less well-characterized. We aimed to determine the prevalence of subclinical myocardial dysfunction and its association with mortality using speckle tracking echocardiography (STE), specifically global longitudinal strain (GLS) and myocardial work efficiency (MWE). We also tested the hypothesis that reduced myocardial function was associated with increased systemic inflammation in COVID-19. Methods and Results: We conducted a retrospective study of hospitalized COVID-19 patients undergoing echocardiography (n = 136), of whom 83 and 75 had GLS (abnormal >-16%) and MWE (abnormal <95%) assessed, respectively. We performed adjusted logistic regression to examine associations of GLS and MWE with in-hospital mortality. Patients were mean 62 ± 14 years old (58% men). While 81% had normal left ventricular ejection fraction (LVEF), prevalence of myocardial dysfunction was high by STE; [39/83 (47%) had abnormal GLS; 59/75 (79%) had abnormal MWE]. Higher MWE was associated with lower in-hospital mortality in unadjusted [OR 0.92 (95% CI 0.85-0.99); p = 0.048] and adjusted models [aOR 0.87 (95% CI 0.78-0.97); p = 0.009]. In addition, increased systemic inflammation measured by interleukin-6 level was associated with reduced MWE. Conclusions: Subclinical myocardial dysfunction is common in COVID-19 patients with clinical echocardiograms, even in those with normal LVEF. Reduced MWE is associated with higher interleukin-6 levels and increased in-hospital mortality. Non-invasive STE represents a readily available method to rapidly evaluate myocardial dysfunction in COVID-19 patients and can play an important role in risk stratification.
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Affiliation(s)
- Anum S Minhas
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Nisha A Gilotra
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Erin Goerlich
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Thomas Metkus
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Brian T Garibaldi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Garima Sharma
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Nicole Bavaro
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Susan Phillip
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Erin D Michos
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Allison G Hays
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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25
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Lustosa RP, Butcher SC, van der Bijl P, El Mahdiui M, Montero-Cabezas JM, Kostyukevich MV, Rocha De Lorenzo A, Knuuti J, Ajmone Marsan N, Bax JJ, Delgado V. Global Left Ventricular Myocardial Work Efficiency and Long-Term Prognosis in Patients After ST-Segment-Elevation Myocardial Infarction. Circ Cardiovasc Imaging 2021; 14:e012072. [PMID: 33653082 DOI: 10.1161/circimaging.120.012072] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Left ventricular (LV) global longitudinal strain has demonstrated incremental prognostic value over LV ejection fraction in patients with ST-segment-elevation myocardial infarction. However, LV global longitudinal strain does not take into consideration the effect of afterload. Novel speckle-tracking echocardiographic indices of myocardial work integrate blood pressure measurements (afterload) with LV global longitudinal strain. The present study aimed to investigate the prognostic value of global LV myocardial work efficiency (GLVMWE; reflecting LV performance) obtained from pressure-strain loops with echocardiography in patients with ST-segment-elevation myocardial infarction. METHODS A total of 507 ST-segment-elevation myocardial infarction patients (mean age, 61±11 years; 76% men) were retrospectively analyzed. LV ejection fraction and GLVMWE were measured by transthoracic echocardiography within 48 hours of admission. GLVMWE was defined as the ratio of constructive work divided by the sum of constructive and wasted work in all LV segments and expressed as a percentage. Spline curve analysis was used to define the association between reduced GLVMWE and all-cause death. RESULTS After a median follow-up of 80 months (interquartile range, 67-97 months), 40 (8%) patients died. Patients with reduced GLVMWE (<86%) showed higher cumulative rates of all-cause mortality (17.5% versus 4.7%; log-rank P<0.001) in comparison with patients with preserved GLVMWE (≥86%). Reduced GLVMWE (<86%) showed an independent association with all-cause mortality (hazard ratio, 3.167 [95% CI, 1.679-5.972]; P<0.001). CONCLUSIONS Reduced GLVMWE (<86%) measured by transthoracic echocardiography within 48 hours of admission in ST-segment-elevation myocardial infarction patients is associated with worse long-term survival.
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Affiliation(s)
- Rodolfo P Lustosa
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.).,National Institute of Cardiology, Rio de Janeiro, Brazil (R.P.L., A.R.D.L.)
| | - Steele C Butcher
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.).,Department of Cardiology, Royal Perth Hospital, Western Australia, Australia (S.C.B.)
| | - Pieter van der Bijl
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.)
| | - Mohammed El Mahdiui
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.)
| | - Jose M Montero-Cabezas
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.)
| | - Marina V Kostyukevich
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.)
| | | | - Juhani Knuuti
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.).,Heart Center, Turku University Hospital and University of Turku, Turku, Finland (J.K., J.J.B.)
| | - Nina Ajmone Marsan
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.)
| | - Jeroen J Bax
- Heart Center, Turku University Hospital and University of Turku, Turku, Finland (J.K., J.J.B.)
| | - Victoria Delgado
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands (R.P.L., S.C.B., P.v.d.B., M.E.M., J.M.M.-C., M.V.K., J.K., N.A.M., J.J.B., V.D.)
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26
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Qin Y, Wu X, Wang J, Li Y, Ding X, Guo D, Jiang Z, Zhu W, Cai Q, Lu X. Value of territorial work efficiency estimation in non-ST-segment-elevation acute coronary syndrome: a study with non-invasive left ventricular pressure-strain loops. Int J Cardiovasc Imaging 2020; 37:1255-1265. [PMID: 33226551 DOI: 10.1007/s10554-020-02110-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/12/2020] [Indexed: 11/30/2022]
Abstract
Non-ST-segment-elevation acute coronary syndrome (NSTE-ACS) patients with normal left ventricular (LV) ejection fraction (LVEF) and wall motion require a non-invasive tool to detect LV risk areas. This study utilized non-invasive LV pressure-strain loops to evaluate territorial myocardial work efficiency (WE) for identifying obstructive coronary artery stenosis, in patients with non-obstructive or obstructive coronary artery stenosis NSTE-ACS, the latter with or without occlusion. Global and territorial longitudinal strain (LS) analyses were performed via speckle-tracking imaging before coronary angiography. LV pressure-strain loops estimated global and territorial myocardial work index (MWI), constructive work (CW), wasted work (WW), and WE. Receiver operating characteristic curve analysis was used to determine the optimal cutoff value of independent parameters to detect obstructive coronary artery stenosis. Compared with non-obstructive, obstructive coronary artery stenosis showed significantly lower global and territorial LS, MWI, CW, and WE, and higher WW. Territorial LS, MWI, CW, and WE were significantly worse in territories of coronary occlusion. Territorial WE was the best parameter for predicting obstructive coronary artery stenosis (AUC 0.80, cutoff < 96%, sensitivity 73%, specificity 70%, P < 0.001). In patients with NSTE-ACS with normal wall motion and LVEF, territorial WE is more accurate than territorial LS or MWI to identify LV risk areas.
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Affiliation(s)
- YunYun Qin
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - XiaoPeng Wu
- Department of Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China
| | | | - YiDan Li
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - XueYan Ding
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - DiChen Guo
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Zhe Jiang
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - WeiWei Zhu
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - QiZhe Cai
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
| | - XiuZhang Lu
- Department of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
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27
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Flachskampf FA. Letter to the Editor Regarding the Recent Publication of Hiemstra et al., Myocardial Work in Nonobstructive Hypertrophic Cardiomyopathy: Implications for Outcome. J Am Soc Echocardiogr 2020; 34:201. [PMID: 33218717 DOI: 10.1016/j.echo.2020.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Frank A Flachskampf
- Department of Medical Sciences, Uppsala University, and Clinical Physiology and Cardiology, Uppsala University Hospital, Uppsala, Sweden
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28
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Heart failure and cardiac imaging: Choosing wisely in the era of multimodality imaging. Anatol J Cardiol 2020; 23:204-208. [PMID: 32235137 PMCID: PMC7163225 DOI: 10.14744/anatoljcardiol.2020.66745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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29
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Hwang IC. Myocardial Efficiency: A Reliable Load-independent Parameter of Cardiac Performance? J Cardiovasc Imaging 2020; 28:279-282. [PMID: 33086444 PMCID: PMC7572257 DOI: 10.4250/jcvi.2020.0118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 07/29/2020] [Indexed: 11/22/2022] Open
Affiliation(s)
- In Chang Hwang
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
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