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Han SI, Sunwoo SH, Park CS, Lee SP, Hyeon T, Kim DH. Next-Generation Cardiac Interfacing Technologies Using Nanomaterial-Based Soft Bioelectronics. ACS NANO 2024; 18:12025-12048. [PMID: 38706306 DOI: 10.1021/acsnano.4c02171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Cardiac interfacing devices are essential components for the management of cardiovascular diseases, particularly in terms of electrophysiological monitoring and implementation of therapies. However, conventional cardiac devices are typically composed of rigid and bulky materials and thus pose significant challenges for effective long-term interfacing with the curvilinear surface of a dynamically beating heart. In this regard, the recent development of intrinsically soft bioelectronic devices using nanocomposites, which are fabricated by blending conductive nanofillers in polymeric and elastomeric matrices, has shown great promise. The intrinsically soft bioelectronics not only endure the dynamic beating motion of the heart and maintain stable performance but also enable conformal, reliable, and large-area interfacing with the target cardiac tissue, allowing for high-quality electrophysiological mapping, feedback electrical stimulations, and even mechanical assistance. Here, we explore next-generation cardiac interfacing strategies based on soft bioelectronic devices that utilize elastic conductive nanocomposites. We first discuss the conventional cardiac devices used to manage cardiovascular diseases and explain their undesired limitations. Then, we introduce intrinsically soft polymeric materials and mechanical restraint devices utilizing soft polymeric materials. After the discussion of the fabrication and functionalization of conductive nanomaterials, the introduction of intrinsically soft bioelectronics using nanocomposites and their application to cardiac monitoring and feedback therapy follow. Finally, comments on the future prospects of soft bioelectronics for cardiac interfacing technologies are discussed.
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Affiliation(s)
- Sang Ihn Han
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung-Hyuk Sunwoo
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
- Department of Chemical Engineering, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Chan Soon Park
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Seung-Pyo Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Dae-Hyeong Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
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2
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Praz F, Beyersdorf F, Haugaa K, Prendergast B. Valvular heart disease: from mechanisms to management. Lancet 2024; 403:1576-1589. [PMID: 38554728 DOI: 10.1016/s0140-6736(23)02755-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/16/2023] [Accepted: 12/06/2023] [Indexed: 04/02/2024]
Abstract
Valvular heart disease is common and its prevalence is rapidly increasing worldwide. Effective medical therapies are insufficient and treatment was historically limited to the surgical techniques of valve repair or replacement, resulting in systematic underprovision of care to older patients and those with substantial comorbidities, frailty, or left ventricular dysfunction. Advances in imaging and surgical techniques over the past 20 years have transformed the management of valvular heart disease. Better understanding of the mechanisms and causes of disease and an increasingly extensive and robust evidence base provide a platform for the delivery of individualised treatment by multidisciplinary heart teams working within networks of diagnostic facilities and specialist heart valve centres. In this Series paper, we aim to provide an overview of the current and future management of valvular heart disease and propose treatment approaches based on an understanding of the underlying pathophysiology and the application of multidisciplinary treatment strategies to individual patients.
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Affiliation(s)
- Fabien Praz
- University Hospital Bern Inselspital, University of Bern, Bern, Switzerland.
| | - Friedhelm Beyersdorf
- Department of Cardiovascular Surgery, Heart Center, University of Freiburg, Freiburg, Germany; Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Kristina Haugaa
- Department of Cardiology, Oslo University Hospital, Rikshospitalet and University of Oslo, Oslo, Norway
| | - Bernard Prendergast
- Heart Vascular and Thoracic Institute, Cleveland Clinic London, London, UK; Department of Cardiology, St Thomas' Hospital, London, UK
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3
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Dutta A, Alqabbani RRM, Hagendorff A, Tayal B. Understanding the Application of Mechanical Dyssynchrony in Patients with Heart Failure Considered for CRT. J Cardiovasc Dev Dis 2024; 11:64. [PMID: 38392278 PMCID: PMC10888548 DOI: 10.3390/jcdd11020064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024] Open
Abstract
Over the past two decades of CRT use, the failure rate has remained around 30-35%, despite several updates in the guidelines based on the understanding from multiple trials. This review article summarizes the role of mechanical dyssynchrony in the selection of heart failure patients for cardiac resynchronization therapy. Understanding the application of mechanical dyssynchrony has also evolved during these past two decades. There is no role of lone mechanical dyssynchrony in the patient selection for CRT. However, mechanical dyssynchrony can complement the electrocardiogram and clinical criteria and improve patient selection by reducing the failure rate. An oversimplified approach to mechanical dyssynchrony assessment, such as just estimating time-to-peak delays between segments, should not be used. Instead, methods that can identify the underlying pathophysiology of HF and are representative of a substrate to CRT should be applied.
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Affiliation(s)
- Abhishek Dutta
- Department of Cardiology, Nazareth Hospital, Philadelphia, PA 19020, USA
| | - Rakan Radwan M Alqabbani
- Department of Internal Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Andreas Hagendorff
- Department of Cardiology, Leipzig University Hospital, 04103 Leipzig, Germany
| | - Bhupendar Tayal
- Harrington and Heart and Vascular Center, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
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4
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Yuyun MF, Joseph J, Erqou SA, Kinlay S, Echouffo-Tcheugui JB, Peralta AO, Hoffmeister PS, Boden WE, Yarmohammadi H, Martin DT, Singh JP. Persistence of significant secondary mitral regurgitation post-cardiac resynchronization therapy and survival: a systematic review and meta-analysis : Mitral regurgitation and mortality post-CRT. Heart Fail Rev 2024; 29:165-178. [PMID: 37855988 DOI: 10.1007/s10741-023-10359-6] [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: 10/05/2023] [Indexed: 10/20/2023]
Abstract
Cardiac resynchronization therapy (CRT) significantly reduces secondary mitral regurgitation (MR) in patients with severe left ventricular systolic dysfunction. However, uncertainty remains as to whether improvement in secondary MR correlates with improvement with mortality seen in CRT. We conducted a meta-analysis to determine the association of persistent unimproved significant secondary MR (defined as moderate or moderate-to-severe or severe MR) compared to improved MR (no MR or mild MR) post-CRT with all-cause mortality, cardiovascular mortality, and heart failure hospitalization. A systematic search of PubMed, EMBASE, and Cochrane Library databases till July 31, 2022 identified studies reporting clinical outcomes by post-CRT secondary MR status. In 12 prospective studies of 4954 patients (weighted mean age 66.8 years, men 77.8%), the median duration of follow-up post-CRT at which patients were re-evaluated for significant secondary MR was 6 months and showed significant relative risk reduction of 30% compared to pre-CRT. The median duration of follow-up post-CRT for ascertainment of main clinical outcomes was 38 months. The random effects pooled hazard ratio (95% confidence interval) of all-cause mortality in patients with unimproved secondary MR compared to improved secondary MR was 2.00 (1.57-2.55); p < 0.001). There was insufficient data to evaluate secondary outcomes in a meta-analysis, but limited data that examined the relationship showed significant association of unimproved secondary MR with increased cardiovascular mortality and heart failure hospitalization. The findings of this meta-analysis suggest that lack of improvement in secondary MR post-CRT is associated with significantly elevated risk of all-cause mortality and possibly cardiovascular mortality and heart failure hospitalization. Future studies may investigate approaches to address persistent secondary MR post-CRT to help improved outcome in this population.
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Affiliation(s)
- Matthew F Yuyun
- Cardiology and Vascular Medicine Service, VA , Boston Healthcare System, 1400 VFW Parkway, West Roxbury, Boston, MA 02132, USA.
- Harvard Medical School, Boston, USA.
- Boston University School of Medicine, Boston, USA.
| | - Jacob Joseph
- Cardiology and Vascular Medicine Service, VA , Boston Healthcare System, 1400 VFW Parkway, West Roxbury, Boston, MA 02132, USA
- VA Providence Healthcare System, Providence, RI, USA
- Brown University, Providence, RI, USA
| | - Sebhat A Erqou
- VA Providence Healthcare System, Providence, RI, USA
- Brown University, Providence, RI, USA
| | - Scott Kinlay
- Cardiology and Vascular Medicine Service, VA , Boston Healthcare System, 1400 VFW Parkway, West Roxbury, Boston, MA 02132, USA
- Harvard Medical School, Boston, USA
- Boston University School of Medicine, Boston, USA
- Brigham and Women's Hospital, Boston, USA
| | - Justin B Echouffo-Tcheugui
- Division of Endocrinology, Diabetes & Metabolism, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Adelqui O Peralta
- Cardiology and Vascular Medicine Service, VA , Boston Healthcare System, 1400 VFW Parkway, West Roxbury, Boston, MA 02132, USA
- Harvard Medical School, Boston, USA
- Boston University School of Medicine, Boston, USA
| | - Peter S Hoffmeister
- Cardiology and Vascular Medicine Service, VA , Boston Healthcare System, 1400 VFW Parkway, West Roxbury, Boston, MA 02132, USA
- Harvard Medical School, Boston, USA
- Boston University School of Medicine, Boston, USA
| | - William E Boden
- Cardiology and Vascular Medicine Service, VA , Boston Healthcare System, 1400 VFW Parkway, West Roxbury, Boston, MA 02132, USA
- Harvard Medical School, Boston, USA
- Boston University School of Medicine, Boston, USA
| | | | - David T Martin
- Harvard Medical School, Boston, USA
- Brigham and Women's Hospital, Boston, USA
| | - Jagmeet P Singh
- Harvard Medical School, Boston, USA
- Massachusetts General Hospital, Boston, USA
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5
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Stankovic I, Voigt JU, Burri H, Muraru D, Sade LE, Haugaa KH, Lumens J, Biffi M, Dacher JN, Marsan NA, Bakelants E, Manisty C, Dweck MR, Smiseth OA, Donal E. Imaging in patients with cardiovascular implantable electronic devices: part 1-imaging before and during device implantation. A clinical consensus statement of the European Association of Cardiovascular Imaging (EACVI) and the European Heart Rhythm Association (EHRA) of the ESC. Eur Heart J Cardiovasc Imaging 2023; 25:e1-e32. [PMID: 37861372 DOI: 10.1093/ehjci/jead272] [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: 10/14/2023] [Revised: 10/15/2023] [Accepted: 10/15/2023] [Indexed: 10/21/2023] Open
Abstract
More than 500 000 cardiovascular implantable electronic devices (CIEDs) are implanted in the European Society of Cardiology countries each year. The role of cardiovascular imaging in patients being considered for CIED is distinctly different from imaging in CIED recipients. In the former group, imaging can help identify specific or potentially reversible causes of heart block, the underlying tissue characteristics associated with malignant arrhythmias, and the mechanical consequences of conduction delays and can also aid challenging lead placements. On the other hand, cardiovascular imaging is required in CIED recipients for standard indications and to assess the response to device implantation, to diagnose immediate and delayed complications after implantation, and to guide device optimization. The present clinical consensus statement (Part 1) from the European Association of Cardiovascular Imaging, in collaboration with the European Heart Rhythm Association, provides comprehensive, up-to-date, and evidence-based guidance to cardiologists, cardiac imagers, and pacing specialists regarding the use of imaging in patients undergoing implantation of conventional pacemakers, cardioverter defibrillators, and resynchronization therapy devices. The document summarizes the existing evidence regarding the use of imaging in patient selection and during the implantation procedure and also underlines gaps in evidence in the field. The role of imaging after CIED implantation is discussed in the second document (Part 2).
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Affiliation(s)
- Ivan Stankovic
- Clinical Hospital Centre Zemun, Department of Cardiology, Faculty of Medicine, University of Belgrade, Vukova 9, 11080 Belgrade, Serbia
| | - Jens-Uwe Voigt
- Department of Cardiovascular Diseases, University Hospitals Leuven/Department of Cardiovascular Sciences, Catholic University of Leuven, Herestraat 49, Leuven 3000, Belgium
| | - Haran Burri
- Cardiac Pacing Unit, Cardiology Department, University Hospital of Geneva, Geneva, Switzerland
| | - Denisa Muraru
- Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
- Department of Cardiology, Istituto Auxologico Italiano, IRCCS, Milan, Italy
| | - Leyla Elif Sade
- University of Pittsburgh Medical Center, Heart and Vascular Institute, Pittsburgh, PA, USA
- Department of Cardiology, University of Baskent, Ankara, Turkey
| | - Kristina Hermann Haugaa
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine Karolinska Institutet AND Cardiovascular Division, Karolinska University Hospital, StockholmSweden
| | - Joost Lumens
- Cardiovascular Research Center Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - Mauro Biffi
- Department of Cardiology, IRCCS, Azienda Ospedaliero Universitaria Di Bologna, Policlinico Di S.Orsola, Bologna, Italy
| | - Jean-Nicolas Dacher
- Department of Radiology, Normandie University, UNIROUEN, INSERM U1096 - Rouen University Hospital, F 76000 Rouen, France
| | - Nina Ajmone Marsan
- Department of Cardiology, Heart and Lung Center, Leiden University Medical Center, Leiden, The Netherlands
| | - Elise Bakelants
- Cardiac Pacing Unit, Cardiology Department, University Hospital of Geneva, Geneva, Switzerland
| | - Charlotte Manisty
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, UK
- Institute of Cardiovascular Science, University College London, London, UK
| | - Marc R Dweck
- Centre for Cardiovascular Science, University of Edinburgh, Little France Crescent, Edinburgh EH16 4SB, United Kingdom
| | - Otto A Smiseth
- Institute for Surgical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Erwan Donal
- University of Rennes, CHU Rennes, Inserm, LTSI-UMR 1099, Rennes, France
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6
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Meyer TE, Chen K, Parker MW, Shih J, Rahban Y. Perspectives on Secondary Mitral Regurgitation in Heart Failure. Curr Heart Fail Rep 2023; 20:417-428. [PMID: 37695505 DOI: 10.1007/s11897-023-00627-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 09/12/2023]
Abstract
PURPOSE OF THE REVIEW This review focuses on broader perspectives of mitral regurgitation (MR) in patients with heart failure. RECENT FINDINGS The ratio of regurgitant volume to end-diastolic volume appears to help identify patients who may benefit from valve interventions. Secondary MR is not only attributed to geometric changes of the LV but also related to the structural changes in the mitral valve that include fibrosis of the mitral leaflets and changes in the extracellular matrix. The transition from mild to severe secondary MR can occur at different rates, from a slow LV remodeling process to a more abrupt process precipitated by an inciting event such as atrial fibrillation. Septal flash and apical rocking, two new visual markers of LV mechanical dyssynchrony, appear to be predictive of MR reduction following cardiac resynchronization therapy. Optimal guideline-directed medical therapy has been shown to decrease the severity of secondary MR effectively. A theoretical framework to characterize secondary MR as it relates to the onset of MR is proposed. Type A: Early onset of MR contemporaneous with myocardial injury. The maladaptive LV remodeling occurs in parallel with MR. Type B: LV remodeling proceeds without significant MR until the LV is moderately dilated, which coincides with or without inciting factors such as atrial fibrillation. Type C: LV remodeling proceeds after myocardial injury without significant MR until the LV is severely dilated. MR is a late manifestation of LV remodeling.
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Affiliation(s)
- Theo E Meyer
- Division of Cardiology, University of Massachusetts Chan Medical School, UMassMemorial Medical Center, Worcester, MA, USA.
| | - Kai Chen
- Division of Cardiology, University of Massachusetts Chan Medical School, UMassMemorial Medical Center, Worcester, MA, USA
| | - Matthew W Parker
- Division of Cardiology, University of Massachusetts Chan Medical School, UMassMemorial Medical Center, Worcester, MA, USA
| | - Jeff Shih
- Division of Cardiology, University of Massachusetts Chan Medical School, UMassMemorial Medical Center, Worcester, MA, USA
| | - Youssef Rahban
- Division of Cardiology, University of Massachusetts Chan Medical School, UMassMemorial Medical Center, Worcester, MA, USA
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7
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Abstract
PURPOSE OF THE REVIEW Dyssynchrony occurs when portions of the cardiac chambers contract in an uncoordinated fashion. Ventricular dyssynchrony primarily impacts the left ventricle and may result in heart failure. This entity is recognized as a major contributor to the development and progression of heart failure. A hallmark of dyssynchronous heart failure (HFd) is left ventricular recovery after dyssynchrony is corrected. This review discusses the current understanding of pathophysiology of HFd and provides clinical examples and current techniques for treatment. RECENT FINDINGS Data show that HFd responds poorly to medical therapy. Cardiac resynchronization therapy (CRT) in the form of conventional biventricular pacing (BVP) is of proven benefit in HFd, but is limited by a significant non-responder rate. Recently, conduction system pacing (His bundle or left bundle branch area pacing) has also shown promise in correcting HFd. HFd should be recognized as a distinct etiology of heart failure; HFd responds best to CRT.
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Affiliation(s)
- Sean J Dikdan
- Thomas Jefferson University Hospital, Philadelphia, PA, 19107, USA
| | | | - Behzad B Pavri
- Thomas Jefferson University Hospital, Philadelphia, PA, 19107, USA.
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8
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Clinical Updates in Cardiac Pacing—The Future Is Bright. J Clin Med 2022; 11:jcm11216376. [DOI: 10.3390/jcm11216376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022] Open
Abstract
The history of cardiac pacing has been defined by many innovation milestones starting in the early 1960s [...]
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9
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Gillette K, Gsell MAF, Strocchi M, Grandits T, Neic A, Manninger M, Scherr D, Roney CH, Prassl AJ, Augustin CM, Vigmond EJ, Plank G. A personalized real-time virtual model of whole heart electrophysiology. Front Physiol 2022; 13:907190. [PMID: 36213235 PMCID: PMC9539798 DOI: 10.3389/fphys.2022.907190] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 08/15/2022] [Indexed: 01/12/2023] Open
Abstract
Computer models capable of representing the intrinsic personal electrophysiology (EP) of the heart in silico are termed virtual heart technologies. When anatomy and EP are tailored to individual patients within the model, such technologies are promising clinical and industrial tools. Regardless of their vast potential, few virtual technologies simulating the entire organ-scale EP of all four-chambers of the heart have been reported and widespread clinical use is limited due to high computational costs and difficulty in validation. We thus report on the development of a novel virtual technology representing the electrophysiology of all four-chambers of the heart aiming to overcome these limitations. In our previous work, a model of ventricular EP embedded in a torso was constructed from clinical magnetic resonance image (MRI) data and personalized according to the measured 12 lead electrocardiogram (ECG) of a single subject under normal sinus rhythm. This model is then expanded upon to include whole heart EP and a detailed representation of the His-Purkinje system (HPS). To test the capacities of the personalized virtual heart technology to replicate standard clinical morphological ECG features under such conditions, bundle branch blocks within both the right and the left ventricles under two different conduction velocity settings are modeled alongside sinus rhythm. To ensure clinical viability, model generation was completely automated and simulations were performed using an efficient real-time cardiac EP simulator. Close correspondence between the measured and simulated 12 lead ECG was observed under normal sinus conditions and all simulated bundle branch blocks manifested relevant clinical morphological features.
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Affiliation(s)
- Karli Gillette
- Gottfried Schatz Research Center—Biophysics, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Matthias A. F. Gsell
- Gottfried Schatz Research Center—Biophysics, Medical University of Graz, Graz, Austria
- NAWI Graz, Institute of Mathematics and Scientific Computing, University of Graz, Graz, Austria
| | | | - Thomas Grandits
- Gottfried Schatz Research Center—Biophysics, Medical University of Graz, Graz, Austria
- NAWI Graz, Institute of Mathematics and Scientific Computing, University of Graz, Graz, Austria
| | | | - Martin Manninger
- Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Daniel Scherr
- Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | | | - Anton J. Prassl
- Gottfried Schatz Research Center—Biophysics, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Christoph M. Augustin
- Gottfried Schatz Research Center—Biophysics, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | | | - Gernot Plank
- Gottfried Schatz Research Center—Biophysics, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
- *Correspondence: Gernot Plank,
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Russo E, Russo G, Cassese M, Braccio M, Carella M, Compagnucci P, Dello Russo A, Casella M. The Role of Cardiac Resynchronization Therapy for the Management of Functional Mitral Regurgitation. Cells 2022; 11:cells11152407. [PMID: 35954250 PMCID: PMC9367730 DOI: 10.3390/cells11152407] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 02/04/2023] Open
Abstract
Valve leaflets and chordae structurally normal characterize functional mitral regurgitation (FMR), which in heart failure (HF) setting results from an imbalance between closing and tethering forces secondary to alterations in the left ventricle (LV) and left atrium geometry. In this context, FMR impacts the quality of life and increases mortality. Despite multiple medical and surgical attempts to treat FMR, to date, there is no univocal treatment for many patients. The pathophysiology of FMR is highly complex and involves several underlying mechanisms. Left ventricle dyssynchrony may contribute to FMR onset and worsening and represents an important target for FMR management. In this article, we discuss the mechanisms of FMR and review the potential therapeutic role of CRT, providing a comprehensive review of the available data coming from clinical studies and trials.
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Affiliation(s)
- Eleonora Russo
- Department of Cardiovascular Disease, IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
- Correspondence:
| | - Giulio Russo
- Department of Biomedicine and Prevention, Policlinico Tor Vergata, University of Rome, 00133 Rome, Italy
| | - Mauro Cassese
- Department of Cardiac Surgery, Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
| | - Maurizio Braccio
- Department of Cardiac Surgery, Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
| | - Massimo Carella
- Scientific Research Department, IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
| | - Paolo Compagnucci
- Cardiology and Arrhythmology Clinic, University Hospital “Ospedali Riuniti Umberto I-Lancisi-Salesi”, 60126 Ancona, Italy
- Department of Biomedical Sciences and Public Health, University Hospital ”Umberto I-Lancisi-Salesi”, Marche Polytechnic University, 60126 Ancona, Italy
| | - Antonio Dello Russo
- Cardiology and Arrhythmology Clinic, University Hospital “Ospedali Riuniti Umberto I-Lancisi-Salesi”, 60126 Ancona, Italy
- Department of Biomedical Sciences and Public Health, University Hospital ”Umberto I-Lancisi-Salesi”, Marche Polytechnic University, 60126 Ancona, Italy
| | - Michela Casella
- Cardiology and Arrhythmology Clinic, University Hospital “Ospedali Riuniti Umberto I-Lancisi-Salesi”, 60126 Ancona, Italy
- Department of Clinical, Special and Dental Sciences, University Hospital “Umberto I-Lancisi-Salesi”, Marche Polytechnic University, 60126 Ancona, Italy
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11
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Kitsou V, Blomberg B, Lunde T, Saeed S. Intermittent left bundle branch block with septal flash and postural orthostatic tachycardia syndrome in a young woman with long COVID-19. BMJ Case Rep 2022; 15:15/6/e249608. [PMID: 35672052 PMCID: PMC9174810 DOI: 10.1136/bcr-2022-249608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The emerging entity, long COVID -19 is characterised by long-lasting dyspnoea, fatigue, cognitive dysfunction and other symptoms. Cardiac involvement manifested as conduction abnormalities, left ventricle mechanical dyssynchrony, dyspnoea, palpitation and postural orthostatic tachycardia syndrome (POTS) are common in long COVID-19. The direct viral damage to the myocardium or immune-mediated inflammation are postulated mechanisms. A woman in her forties presented with a 2-month history of chest pain, functional dyspnoea, palpitation and an episode of syncope after having been home-isolated for mild COVID infection. During clinical workup, a clustering of ECG and echocardiographic abnormalities including left bundle branch block, septal flash, and presystolic wave on spectral Doppler echocardiography, and POTS were detected. The echocardiographic findings together with POTS and persistent dyspnoea indicated the presence of a long COVID-19 state. The prevalence and clinical significance of these finding, as well as the impact on long-term prognosis, should be investigated in future studies.
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Affiliation(s)
- Vasiliki Kitsou
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
- Emergency Care Clinic, Haukeland University Hospital, Bergen, Norway
| | - Bjørn Blomberg
- Department of Clinical Science, University of Bergen, Bergen, Norway
- National Advisory Unit for Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Torbjørn Lunde
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Sahrai Saeed
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
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12
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Bax JJ, van der Bijl P. Apical Rocking and Septal Flash: Predictors of Secondary Mitral Regurgitation Improvement After Cardiac Resynchronization Therapy. JACC Cardiovasc Imaging 2022; 15:221-223. [PMID: 35144764 DOI: 10.1016/j.jcmg.2021.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 10/06/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Jeroen J Bax
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Leiden, the Netherlands; Heart Centre, University of Turku and Turku University Hospital, Turku, Finland.
| | - Pieter van der Bijl
- Department of Cardiology, Heart Lung Center, Leiden University Medical Centre, Leiden, the Netherlands
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