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Berthelot-Richer M, Vakulenko HV, Calleja A, Woo A, Thavendiranathan P, Poulin F. Two-dimensional transthoracic measure of mitral annulus in mitral valve prolapse and moderate to severe regurgitation: a method comparison analysis with three-dimensional transesophageal echocardiography. J Cardiovasc Imaging 2024; 32:2. [PMID: 38907302 PMCID: PMC11177645 DOI: 10.1186/s44348-024-00001-w] [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: 01/16/2023] [Accepted: 07/18/2023] [Indexed: 06/23/2024] Open
Abstract
BACKGROUND Mitral annulus (MA) area is derived during transthoracic echocardiography (TTE) assuming of a circular shape using the MA diameter from the apical 4 chamber (A4c) view. Since the MA is not a circular structure, we hypothesized that an elliptical model using parasternal long-axis (PLAX) and apical 2 chamber (A2c) view measured MA diameters would have better agreement with 3-dimensional transesophageal echocardiography (3D TEE) measured MA in degenerative mitral valve disease (DMVD). METHODS Seventy-six patients with moderate-to-severe DMVD had 2D TTE and 3D TEE performed. MA area was measured retrospectively using semi-automatic modeling of 3D data (3D TEEsa) and considered as the reference method. MA diameters were measured using different 2D TTE views. MA area was calculated using assumptions of a circular or an elliptical shape. 2D TTE derived and 3D TEEsa. MA areas were compared using linear regression and Bland-Altman analysis. RESULTS The median MA area measured at 3D TEEsa was 1,386 (1,293-1,673) mm2. With 2D TTE, the circular model using A4c view diameter resulted in a small systematic underestimation of MA area (6%), while the elliptical model using PLAX and A2c diameters resulted in 25% systematic underestimation. The standard deviations of the distributions of inter-method differences were wide for all 2D TTE methods (265-289 mm2) when compared to 3D TEEsa, indicating imprecision. CONCLUSIONS When compared with 3D TEEsa modeling of the MA as the reference, the assumption of a circular shape using A4c TTE view diameter was the method with the least systematic error to assess MA area in DMVD and moderate to severe regurgitation.
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Affiliation(s)
- Maxime Berthelot-Richer
- Department of Cardiology, Hôpital du Sacré-Cœur de Montréal, University of Montreal, 5400 Gouin W Blvd, Montréal, QC, H4J 1C5, Canada
| | - Halyna Viktorivna Vakulenko
- Department of Cardiology, Hôpital du Sacré-Cœur de Montréal, University of Montreal, 5400 Gouin W Blvd, Montréal, QC, H4J 1C5, Canada
| | - Anna Calleja
- Division of Cardiology, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Anna Woo
- Division of Cardiology, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | | | - Frédéric Poulin
- Department of Cardiology, Hôpital du Sacré-Cœur de Montréal, University of Montreal, 5400 Gouin W Blvd, Montréal, QC, H4J 1C5, Canada.
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2
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Kietrsunthorn PS, Ghrair F, Schelegle AR, Foerst JR. Transcatheter Mitral Valve Therapies in Patients with Mitral Annular Calcification. Interv Cardiol Clin 2024; 13:237-248. [PMID: 38432766 DOI: 10.1016/j.iccl.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Mitral annular calcification is a chronic process involving degeneration and calcium deposition within the fibrous skeleton of the mitral valve annulus, which can lead to mitral valve dysfunction. It can be asymptomatic, or it can have pathologic sequelae leading to cardiovascular morbidity and mortality. Mitral annular calcification is increasingly recognized with the advancement of diagnostic imaging modalities, especially in an era with a growing elderly population. Its presence poses considerable challenges in terms of surgical and transcatheter management. Multiple surgical and transcatheter techniques have been developed to overcome these challenges. New transcatheter technologies are under investigation to tackle this problem.
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Affiliation(s)
- Patrick S Kietrsunthorn
- Structural and Interventional Cardiology, Virginia Tech Carilion School of Medicine and Carilion Clinic, 2001 Crystal Spring Road, Suite 203, Roanoke, VA 24014, USA
| | - Fadi Ghrair
- Structural and Interventional Cardiology, Virginia Tech Carilion School of Medicine and Carilion Clinic, 2001 Crystal Spring Road, Suite 203, Roanoke, VA 24014, USA
| | - Aaron R Schelegle
- Structural and Interventional Cardiology, Virginia Tech Carilion School of Medicine and Carilion Clinic, 2001 Crystal Spring Road, Suite 203, Roanoke, VA 24014, USA
| | - Jason R Foerst
- Structural and Interventional Cardiology, Virginia Tech Carilion School of Medicine and Carilion Clinic, 2001 Crystal Spring Road, Suite 203, Roanoke, VA 24014, USA.
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3
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Patrascu A, Weinmann K, Ott I. A parachute-like mitral valve with a unique calcification pattern. Eur Heart J Case Rep 2024; 8:ytae155. [PMID: 38567270 PMCID: PMC10986393 DOI: 10.1093/ehjcr/ytae155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 02/23/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Affiliation(s)
- Alexandru Patrascu
- Department of Cardiology, Rhythmology, Electrophysiology and Angiology, Helios Hospital Pforzheim, Kanzlerstrasse 2-6, 75175 Pforzheim, Germany
| | - Kai Weinmann
- Department of Cardiology, Rhythmology, Electrophysiology and Angiology, Helios Hospital Pforzheim, Kanzlerstrasse 2-6, 75175 Pforzheim, Germany
| | - Ilka Ott
- Department of Cardiology, Rhythmology, Electrophysiology and Angiology, Helios Hospital Pforzheim, Kanzlerstrasse 2-6, 75175 Pforzheim, Germany
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4
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Nemes A. Cardiac Mechanics and Valvular and Vascular Abnormalities in Hypereosinophilic Syndrome. J Clin Med 2024; 13:1403. [PMID: 38592243 PMCID: PMC10932465 DOI: 10.3390/jcm13051403] [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: 01/04/2024] [Revised: 02/04/2024] [Accepted: 02/19/2024] [Indexed: 04/10/2024] Open
Abstract
Hypereosinophilic syndrome (HES) is considered to be a rare myeloproliferative disease that is characterized by persistent eosinophilia with associated multiple-organ damage. The heart is often involved in HES, representing a major cause of morbidity and mortality. HES is a heterogeneous group of disorders; the majority of the cases are idiopathic. Summarizing the findings regarding myocardial, valvular, and vascular abnormalities in a series of patients with HES, most studies found normal left ventricular (LV) volumes with reduced LV global longitudinal strain and LV apical rotation and twist in HES cases, accompanied by increased left atrial (LA) volumes and stroke volumes, reduced peak LA circumferential strain (representing systolic abnormalities), and mitral annular dilation and functional deterioration. Regarding the right heart, preserved right ventricular volumes and functional properties, increased right atrial volumes, mild RA functional abnormalities, and dilated tricuspid annular dimensions without functional impairment could be seen in these studies. Aortic and pulmonary valves showed no specific disease-related alterations. Vascular abnormalities included increased aortic stiffness without dilation of the aorta and pulmonary hypertension in some cases. These results suggest disease-specific but relatively mild myocardial, valvular, and vascular abnormalities in HES. The present review aimed to summarize the available clinical data about cardiac mechanics and valvular and vascular abnormalities in a series of patients with HES.
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Affiliation(s)
- Attila Nemes
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
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5
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Shrivastava S, Shrivastava S, Allu SVV, Schmidt P, Mohyeldin M, Qasim A. Advancements in MitraClip Intervention for Mitral Regurgitation: A Comprehensive Review and Comparative Analysis of Clinical Trials. Cureus 2024; 16:e54805. [PMID: 38529422 PMCID: PMC10961671 DOI: 10.7759/cureus.54805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2024] [Indexed: 03/27/2024] Open
Abstract
This comprehensive review explores the evolution and clinical impact of MitraClip intervention in the management of mitral regurgitation. Mitral regurgitation results from dysfunction in the mitral valve (MV) apparatus. The MitraClip Clip Delivery System was approved by the Food and Drug Administration (FDA) in 2013. The discussion delves into the procedural foundation of MitraClip intervention, primarily based on Alfieri's technique of edge-to-edge leaflet approximation. As highlighted by key clinical trials, including Endovascular Valve Edge-to-Edge Repair (EVEREST) II Trial, Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation (COAPT) Trial, and Percutaneous Repair with the MitraClip Device for Severe Functional/Secondary Mitral Regurgitation (MITRA-FR) trial, the efficacy and safety of MitraClip were evaluated in comparison to surgical interventions and guideline-directed medical therapy. Notably, the COAPT demonstrated significant benefits in reducing all-cause mortality and heart failure hospitalization, while the MITRA-FR presented contrasting results, emphasizing the importance of patient selection. An analysis of the EVEREST II trial underscores MitraClip's potential to achieve comparable outcomes to surgical intervention, emphasizing its role in reducing mitral regurgitation and improving clinical status. However, limitations and complications, such as device-related issues and the potential impact on future MV surgery, are discussed. The study also explores the evolving landscape of MV interventions, reflecting advancements and the growing acceptance of MitraClip. In conclusion, the MitraClip device represents a significant advancement in the treatment of mitral regurgitation. The data presented highlights its promising results in terms of reduced hospitalization rates, improved in-hospital mortality, and enhanced quality of life for patients. However, challenges remain, and careful consideration of patient selection and underlying pathology is crucial in determining the optimal treatment approach. Ongoing research and clinical experience will continue to refine our understanding of MitraClip's role in the evolving landscape of MV interventions.
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Affiliation(s)
| | | | | | - Patrik Schmidt
- Internal Medicine, BronxCare Health System, New York, USA
| | | | - Abeer Qasim
- Internal Medicine, BronxCare Health System, New York, USA
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6
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Toader DM. Echocardiographic quantification of mitral apparatus morphology and dynamics in patients with dilated cardiomyopathy. J Int Med Res 2024; 52:3000605231209830. [PMID: 38318649 PMCID: PMC10846232 DOI: 10.1177/03000605231209830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/09/2023] [Indexed: 02/07/2024] Open
Abstract
Mitral regurgitation is among the most common valvular heart diseases. Mitral regurgitation in patients with dilated cardiomyopathy is a complex pathology involving annular dilatation, papillary muscle displacement, systolic leaflet tethering, and left ventricular remodeling. Quantification of mitral apparatus damage in these patients is essential for successful interventional and surgical therapy. Mitral regurgitation in the presence of dilated cardiomyopathy is classified as Carpentier type IIIB, with restricted leaflet mobility as a standard feature. Echocardiography allows accurate evaluation of the complex anatomy and function of the mitral apparatus. Updated guidelines recommend two-dimensional followed by systematic three-dimensional echocardiographic evaluation in patients with mitral regurgitation. New three-dimensional echocardiographic software packages provide many parameters that help identify the precise morphology and function of the various components of the mitral apparatus, helping to determine the etiology of mitral regurgitation and evaluate disease severity. This review provides the first point-by-point approach to the assessment of all old and new echocardiographic methods, from the simplest to the most complex, used to examine the components of the mitral valve apparatus in patients with dilated cardiomyopathy. Although these parameters are still under research, this information will be helpful for establishing therapeutic procedures in a disease with a poor prognosis.
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Affiliation(s)
- Despina-Manuela Toader
- EuroEchoLab Craiova Cardiology Center, Emergency Hospital Craiova, Romania, Str Tabaci nr 1, Craiova, Romania
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7
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Park C, Singh M, Saeed MY, Nguyen CT, Roche ET. Biorobotic hybrid heart as a benchtop cardiac mitral valve simulator. DEVICE 2024; 2:100217. [PMID: 38312504 PMCID: PMC10836162 DOI: 10.1016/j.device.2023.100217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
In this work, we developed a high-fidelity beating heart simulator that provides accurate mitral valve pathophysiology. The benchtop platform is based on a biorobotic hybrid heart that combines preserved intracardiac tissue with soft robotic cardiac muscle providing dynamic left ventricular motion and precise anatomical features designed for testing intracardiac devices, particularly for mitral valve repair. The heart model is integrated into a mock circulatory loop, and the active myocardium drives fluid circulation producing physiological hemodynamics without an external pulsatile pump. Using biomimetic soft robotic technology, the heart can replicate both ventricular and septal wall motion, as well as intraventricular pressure-volume relationships. This enables the system to recreate the natural motion and function of the mitral valve, which allows us to demonstrate various surgical and interventional techniques. The biorobotic cardiovascular simulator allows for real-time hemodynamic data collection, direct visualization of the intracardiac procedure, and compatibility with clinical imaging modalities.
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Affiliation(s)
- Clara Park
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology; Cambridge, MA, USA 02139
- Department of Mechanical Engineering, Massachusetts Institute of Technology; Cambridge, MA, USA 02139
| | - Manisha Singh
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology; Cambridge, MA, USA 02139
| | - Mossab Y. Saeed
- Department of Cardiac Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA 02115
| | - Christopher T. Nguyen
- Cardiovascular Research Center, Massachusetts General Hospital; Charlestown, MA, USA 02114
- Cardiovascular Innovation Research Center, Heart Vascular Thoracic Institute, Cleveland Clinic; Cleveland, OH, USA 44195
- Imaging Sciences, Imaging Institute, Cleveland Clinic; Cleveland, OH, USA 44195
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic; Cleveland, OH, USA 44196
| | - Ellen T. Roche
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology; Cambridge, MA, USA 02139
- Department of Mechanical Engineering, Massachusetts Institute of Technology; Cambridge, MA, USA 02139
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8
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Zhou N, Liu A, Weng H, Liu W, Tian F, Zhao W, Ma J, Guo W, Chen H, Pan C, Shu X. Three-dimensional echocardiography reveals early mitral valve alterations in hypertrophic cardiomyopathy genetic mutation carriers. Int J Cardiol 2024; 395:131576. [PMID: 37949234 DOI: 10.1016/j.ijcard.2023.131576] [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: 04/18/2023] [Revised: 09/23/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND The mitral valve undergoes structural modifications in response to cardiac functional changes, often predating cardiac decompensation and overt clinical signs. Our study assessed the potential of mitral valve morphological changes as early indicators for detecting carriers of hypertrophic cardiomyopathy (HCM)-associated gene mutations. METHODS We studied 505 participants: 189 without the pathogenic gene mutations and left ventricular hypertrophy (G-/LVH-), 149 carriers without LV hypertrophy (G+/LVH-), and 167 manifest HCM patients (G+/LVH+). We juxtaposed the mitral valve morphology and associated metrics across these groups, emphasizing those carrying MYH7 and MYBPC3 mutations. RESULTS We discerned pronounced disparities in the mitral annulus and leaflet structures across the groups. The mitral valve apparatus in mutation carriers exhibited a tendency towards a flattened profile. Detailed analysis spotlighted MYBPC3 mutation carriers, whose mitral valves were notably flatter (with notably lower AHCWR values than non-carriers); this contrast was not evident in MYH7 mutation carriers. This mitral valve flattening, manifest in the mutation carriers, suggests it might be an adaptive response to incipient cardiac dysfunction in HCM's nascent stages. CONCLUSIONS Three-dimensional echocardiography illuminates the initial mitral valve structural changes in HCM patients bearing pathogenic gene mutations. These morphological signatures hold promise as sensitive imaging markers, especially for asymptomatic carriers of the MYBPC3 mutation.
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Affiliation(s)
- Nianwei Zhou
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Ao Liu
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Haobo Weng
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Wen Liu
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Fangyan Tian
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Weipeng Zhao
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Jing Ma
- Department of Echocardiography, Shanghai Xuhui District Central Hospital, Huaihai Middle Road 966, Xuhui District, Shanghai, China
| | - Wei Guo
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Haiyan Chen
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Cuizhen Pan
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China
| | - Xianhong Shu
- Department of Echocardiography, Zhongshan Hospital,Fudan University,Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai, China; Department of Echocardiography, Shanghai Xuhui District Central Hospital, Huaihai Middle Road 966, Xuhui District, Shanghai, China.
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9
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Nemes A. Myocardial Mechanics and Associated Valvular and Vascular Abnormalities in Left Ventricular Noncompaction Cardiomyopathy. J Clin Med 2023; 13:78. [PMID: 38202085 PMCID: PMC10779999 DOI: 10.3390/jcm13010078] [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: 11/09/2023] [Revised: 11/26/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
Left ventricular (LV) non-compaction (LVNC) is a rare genetic cardiomyopathy due to abnormal intra-uterine arrest of compaction of the myocardial fibers during endomyocardial embryogenesis. Due to the partial or complete absence of LV compaction, the structure of the LV wall shows characteristic abnormalities, including a thin compacted epicardium and a thick non-compacted endocardium with prominent trabeculations and deep intertrabecular recesses. LVNC is frequently associated with chronic heart failure, life-threatening ventricular arrhythmias, and systemic embolic events. According to recent findings, in the presence of LVNC, dysfunctional LV proved to be associated with left atrial volumetric and functional abnormalities and consequential dilated and functionally impaired mitral annulus, partly explaining the higher prevalence of regurgitation. Although the non-compaction process morphologically affects only the LV, signs of remodeling of the right heart were also detected. Moreover, dilation and stiffening of the aorta were present. The aim of the present detailed review was to summarize findings regarding changes in cardiac mechanics, valvular abnormalities, and vascular remodeling detected in patients with LVNC.
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Affiliation(s)
- Attila Nemes
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
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10
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Tidholm A, Menciotti G, Borgarelli M. Current use of real-time three-dimensional transthoracic echocardiography in animals. J Vet Cardiol 2023; 51:97-104. [PMID: 38118235 DOI: 10.1016/j.jvc.2023.11.009] [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: 11/10/2022] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 12/22/2023]
Abstract
This review includes 36 studies of transthoracic real-time three-dimensional echocardiography (RT3DE) in animals. Most of these studies concern cardiac chamber quantification of the left atrium and left ventricle, in dogs. Comparisons of RT3DE and different two-dimensional echocardiographic (2DE) methods have been reported in dogs with myxomatous mitral valve disease (MMVD), dilated cardiomyopathy, and in healthy control dogs. Comparisons of RT3DE and standard reference methods have been reported in healthy control dogs. In dogs with MMVD, volumetric RT3DE measurements of left atrium do not appear to provide superior prognostic value compared with 2DE methods using Simpson's method of discs in dogs with MMVD. The major advantages of RT3DE compared to 2DE include improvements in visualization of the complex morphology of the mitral valve, the estimation of mitral valve regurgitation, and improved visualization of complex congenital cardiac abnormalities.
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Affiliation(s)
- A Tidholm
- Anicura Albano Animal Hospital, Rinkebyvägen 21, Danderyd, Sweden; Department of Clinical Sciences Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
| | - G Menciotti
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - M Borgarelli
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
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11
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Nemes A, Kormányos Á, Ambrus N, Lengyel C, Valkusz Z. Myocardial, Valvular, and Vascular Structural and Functional Properties in Acromegaly. J Clin Med 2023; 12:6857. [PMID: 37959322 PMCID: PMC10648583 DOI: 10.3390/jcm12216857] [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: 09/11/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Acromegaly is an uncommon systematic endocrine disease caused by the hypersecretion of human growth hormone and, consequently, of insulin-like growth factor-1 during adulthood. Acromegaly could cause a typical cardiomyopathy characterized by left ventricular hypertrophy associated with diastolic dysfunction, which later could progress to systolic dysfunction. Moreover, some valvular and vascular abnormalities are also associated with acromegaly. This present review aims to summarize available information regarding acromegaly-associated abnormalities in myocardial, valvular, and vascular structural and functional properties and their relationship to disease activity and treatment options.
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Affiliation(s)
- Attila Nemes
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary; (Á.K.); (N.A.); (C.L.); (Z.V.)
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12
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Raja Shariff RE, Soesanto AM, Scalia GM, Ewe SH, Izumo M, Liu L, Li WCW, Kam KKH, Fan Y, Hong GR, Kinsara AJ, Tucay ES, Oh JK, Lee APW. Echocardiographic Imaging in Transcatheter Structural Intervention: An AAE Review Paper. JACC. ASIA 2023; 3:556-579. [PMID: 37614546 PMCID: PMC10442887 DOI: 10.1016/j.jacasi.2023.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/24/2023] [Accepted: 05/27/2023] [Indexed: 08/25/2023]
Abstract
Transcatheter structural heart intervention (TSHI) has gained popularity over the past decade as a means of cardiac intervention in patients with prohibitive surgical risks. Following the exponential rise in cases and devices developed over the period, there has been increased focus on developing the role of "structural imagers" amongst cardiologists. This review, as part of a growing initiative to develop the field of interventional echocardiography, aims to highlight the role of echocardiography in myriad TSHIs available within Asia. We first discuss the various echocardiography-based imaging modalities, including 3-dimensional echocardiography, fusion imaging, and intracardiac echocardiography. We then highlight a selected list of structural interventions available in the region-a combination of established interventions alongside novel approaches-describing key anatomic and pathologic characteristics related to the relevant structural heart diseases, before delving into various aspects of echocardiography imaging for each TSHI.
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Affiliation(s)
| | - Amiliana M. Soesanto
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia/National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | | | | | - Masaki Izumo
- Department of Cardiology, St Marianna University School of Medicine, Miyamae Ward, Kawasaki, Kanagawa, Japan
| | - Liwen Liu
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Williams Ching-Wei Li
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kevin Ka-Ho Kam
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong
| | - Yiting Fan
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Geu-Ru Hong
- Yonsei University College of Medicine, Sinchon-dong, Seodaemun-gu, Seoul, South Korea
| | - Abdulhalim Jamal Kinsara
- Ministry of National Guard—Health Affairs, King Saud Bin Abdulaziz University for Health Sciences, COM-WR, King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
| | - Edwin S. Tucay
- Philippine Heart Center, Diliman, Quezon City, Metro Manila, Philippines
| | - Jae K. Oh
- Mayo Clinic, Rochester, Minnesota, USA
| | - Alex Pui-Wai Lee
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong
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13
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Chen T, Chang L, Rong B, Zhang K, Fan G, Kong J, Ling M, Kong Q, Maduray K, Zhao C, Zhong J. Combination of Intracardiac Echocardiography and Contact Force Sensing for Left Ventricular Papillary Muscle Arrhythmias. J Clin Med 2023; 12:jcm12093154. [PMID: 37176594 PMCID: PMC10179325 DOI: 10.3390/jcm12093154] [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: 02/24/2023] [Revised: 04/04/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
OBJECTIVES The catheter ablation of ventricular arrhythmias (VAs) arising from the left ventricular (LV) papillary muscles (PMs) is challenging. This study sought to address whether the combination of intracardiac echocardiography (ICE) and contact force sensing (CFS) can improve the acute and long-term ablation outcomes of left ventricular papillary muscle arrhythmias. METHODS AND RESULTS From May 2015 to August 2022, a total of thirty-three patients underwent catheter ablation for LV PM arrhythmias: VAs were located in anterolateral PMs in 11 and posteromedial PMs in 22. A combination of intracardiac echocardiography (ICE) and contact force sensing (CFS) was used in 21 of the 33 procedures. A mean of 6.93 ± 4.91 for lesions was used per patient, comparable between the CFS/ICE and no ICE/CFS (4.90 ± 2.23 vs. 10.17 ± 5.89; p = 0.011). The mean CF achieved in the ICE/CFS group was 7.52 ± 3.31 g. Less X-ray time was used in the combination group (CFS/ICE: 165.67 ± 47.80 S vs. no ICE/CFS: 365.00 ± 183.73 S; p < 0.001). An acute success rate of 100% was achieved for the ICE/CFS group (n = 22) and 66.67% for the no ICE/CFS group (n = 8). VA recurrence at the 11.21 ± 7.21-month follow-up was 14.2% for the ICE/CFS group and 50% for the no ICE/CFS group (p = 0.04). No severe complications occurred in all patients. CONCLUSIONS The combination of intracardiac echocardiography (ICE) and contact force sensing (CFS) could provide precise geometries of cardiac endocavitary structures and accurate contact information for the catheter during ablation, which improved acute and long-term ablation outcomes. The routine adoption of this strategy should be considered to improve the outcomes of LV PM VA ablation.
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Affiliation(s)
- Tongshuai Chen
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Lujie Chang
- Department of Pediatric Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Bing Rong
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Kai Zhang
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Guanqi Fan
- Department of Radiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Jing Kong
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Mingying Ling
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Qingyu Kong
- Department of Pediatric Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Kellina Maduray
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Cuifen Zhao
- Department of Pediatric Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Jingquan Zhong
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China
- Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Jinan 250012, China
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14
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Nemes A, Kormányos Á. Right atrial volumes and strains in healthy adults: is the Frank-Starling mechanism working?-detailed analysis from the three-dimensional speckle-tracking echocardiographic MAGYAR-Healthy Study. Quant Imaging Med Surg 2023; 13:825-834. [PMID: 36819234 PMCID: PMC9929410 DOI: 10.21037/qims-22-307] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 11/08/2022] [Indexed: 12/13/2022]
Abstract
Background With larger blood volume flowing into a cardiac chamber, by stretching muscle fibers, increased contraction force could be detected. This phenomenon is called Frank-Starling mechanism, allowing the output of a cardiac chamber to be synchronized without external regulation. The purpose of the present study was to investigate the Frank-Starling mechanism in the right atrium (RA) represented by its volumes, volume-based functional properties and strains respecting the cardiac cycle in healthy adults by three-dimensional (3D) speckle-tracking echocardiography (3DSTE). Methods The present single center retrospective cohort study comprised 179 healthy adult volunteers (mean age: 33.2±12.0 years, 92 males), in whom complete two-dimensional Doppler echocardiography with 3DSTE was performed. Subjects were divided into 3 groups according to the mean value of maximum RA volume (Vmax) ± standard deviation: Vmax <30 mL, 30 mL ≤ Vmax <60 mL and Vmax ≥60 mL. Results All RA volumes respecting the cardiac cycle of all subjects and calculated separately for females and males and their indexed equivalents increased with Vmax. RA stroke volumes increased with Vmax regardless of the phase it was measured in. While total atrial emptying fraction representing the reservoir phase remained unchanged with the increase of Vmax, a significant increase in passive atrial emptying fraction representing the conduit phase could be detected, in case of Vmax >60 mL (28.9%±15.1% vs. 32.5%±12.6%, P<0.05). Active atrial emptying fraction representing the booster pump function did not change with the increase of Vmax. Most global and mean segmental peak RA strains did not show significant changes with increasing RA volumes except for the RA area strain, it was the largest when Vmax was larger than 60 mL (64.7%±44.9% vs. 83.3%±49.4%, P<0.05). RA circumferential, longitudinal and area strains at atrial contraction decreased with increasing Vmax, RA radial and 3D strains did not change significantly with increasing Vmax. Conclusions Increasing RA volumes do not cause significant increase in RA contractility represented by strains, but reduction in strains in longitudinal and circumferential directions could be detected in end-diastolic booster pump function. In contrast to the left atrium, obvious signs of Frank-Starling mechanism could not be detected in case of the RA.
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Affiliation(s)
- Attila Nemes
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Árpád Kormányos
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
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15
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Mantegazza V, Gripari P, Tamborini G, Muratori M, Fusini L, Ghulam Ali S, Garlaschè A, Pepi M. 3D echocardiography in mitral valve prolapse. Front Cardiovasc Med 2023; 9:1050476. [PMID: 36704460 PMCID: PMC9871497 DOI: 10.3389/fcvm.2022.1050476] [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: 09/21/2022] [Accepted: 12/20/2022] [Indexed: 01/11/2023] Open
Abstract
Mitral valve prolapse (MVP) is the leading cause of mitral valve surgery. Echocardiography is the principal imaging modality used to diagnose MVP, assess the mitral valve morphology and mitral annulus dynamics, and quantify mitral regurgitation. Three-dimensional (3D) echocardiographic (3DE) imaging represents a consistent innovation in cardiovascular ultrasound in the last decades, and it has been implemented in routine clinical practice for the evaluation of mitral valve diseases. The focus of this review is the role and the advantages of 3DE in the comprehensive evaluation of MVP, intraoperative and intraprocedural monitoring.
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Affiliation(s)
- Valentina Mantegazza
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy,Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, Milan, Italy,*Correspondence: Valentina Mantegazza ✉
| | - Paola Gripari
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy
| | - Gloria Tamborini
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy
| | - Manuela Muratori
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy
| | - Laura Fusini
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy,Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Sarah Ghulam Ali
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy
| | - Anna Garlaschè
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy
| | - Mauro Pepi
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy
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16
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Sheng J, Yang Z, Xu M, Meng J, Gong M, Miao Y. A prediction model based on functional mitral regurgitation for the recurrence of paroxysmal atrial fibrillation (PAF) after post-circular pulmonary vein radiofrequency ablation (CPVA). Echocardiography 2022; 39:1501-1511. [PMID: 36376256 PMCID: PMC10098807 DOI: 10.1111/echo.15479] [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: 04/20/2022] [Revised: 09/19/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
AIM To construct a prediction model based on functional mitral regurgitation (FMR) in patients with paroxysmal atrial fibrillation (PAF) to predict atrial fibrillation recurrence after the post-circular pulmonary vein radiofrequency ablation (CPVA). METHODS We retrospectively analyzed 289 patients with PAF who underwent CPVA for the first time. The patients were randomly divided into modeling group and verification group at the ratio of 75:25. In the modeling group, the multivariate logistic regression was used to analyze and construct a prediction model for post-CPVA recurrence in PAF patients, which was then validated in the verification group. RESULTS (1) After 3-6 months of follow-up, the patients were divided into sinus rhythm group (252 cases) and recurrence group (24 cases); (2) In the modeling group, the age, left atrial diameter (LAD), and the degree of MR (mild, moderate, severe) were higher in recurrence group than that of the sinus rhythm group, and the left atrial appendage emptying velocity (LAAV) was lower in recurrence group (all p < .05). (3) A model for predicting the recurrence of PAF after radiofrequency ablation was constructed in the modeling group. The equation was: Logit(P) = -3.253 + .092 × age + 1.263 × mild MR + 2.325 × moderate MR + 5.111 × severe MR -.113 × LAAV. The area under the curve (AUC) of the model was .889 in modeling group and .866 in verification group, and the difference was not statistically significant (p > .05). CONCLUSION The prediction model of atrial fibrillation (AF) recurrence after CPVA in PAF patients has good predictive efficacy, specificity, and accuracy.
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Affiliation(s)
- Jingyu Sheng
- Department of Electrocardiography, Wujin Hospital Affiliated with Jiangsu University, The Wujin Clinical college of Xuzhou Medical University, Changzhou, China.,Department of Cardiovascular Division, The Third Affiliated Hospital of Soochow University, Chang Zhou, China
| | - Zhenni Yang
- Department of Cardiovascular Division, The Third Affiliated Hospital of Soochow University, Chang Zhou, China
| | - Min Xu
- Department of Cardiovascular Division, The Third Affiliated Hospital of Soochow University, Chang Zhou, China
| | - Jun Meng
- Department of Cardiovascular Division, The Third Affiliated Hospital of Soochow University, Chang Zhou, China
| | - Mingxia Gong
- Department of Cardiovascular Division, The Third Affiliated Hospital of Soochow University, Chang Zhou, China
| | - Yuxia Miao
- Department of Cardiovascular Division, The Third Affiliated Hospital of Soochow University, Chang Zhou, China
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17
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Vratonjic J, Jovanovic I, Petrovic O, Paunovic I, Boricic-Kostic M, Tesic M, Nedeljkovic-Arsenovic O, Maksimovic R, Ivanovic B, Trifunovic-Zamaklar D. Multimodality imaging for the management of patients with primary mitral regurgitation. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:1051-1059. [PMID: 36218209 DOI: 10.1002/jcu.23335] [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: 08/05/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 06/16/2023]
Abstract
Advanced cardiac imaging (ACI), including myocardial deformation imaging, 3D echocardiography and cardiac magnetic resonance, overcomes the limitations of conventional echocardiography in the assessment of patients with primary mitral regurgitation (MR). They enable a more precise MR quantification and reveal early changes before advanced and irreversible remodeling with depressed heart function occurs. ACI permits a thorough analysis of mitral valvular anatomy and MR mechanisms (important for planning and guiding percutaneous and surgical procedures) and helps to identify structural and functional changes coupled with a high arrhythmogenic potential, especially the occurrence of atrial fibrillation and heart failure development. The key question is how the data provided by ACI can improve the current management of primary MR.
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Affiliation(s)
- Jelena Vratonjic
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Ivana Jovanovic
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Olga Petrovic
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivana Paunovic
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
| | | | - Milorad Tesic
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Olga Nedeljkovic-Arsenovic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Center for Radiology and Magnetic resonance, University Clinical Center of Serbia, Belgrade, Serbia
| | - Ruzica Maksimovic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Center for Radiology and Magnetic resonance, University Clinical Center of Serbia, Belgrade, Serbia
| | - Branislava Ivanovic
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Danijela Trifunovic-Zamaklar
- Clinic for Cardiology, University Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
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18
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Vriz O, Eltayeb A, Landi I, Anwar K, Alenazy A, Hiristova K, Kasprzak J, D'Andrea A, Amro B, Limongelli G, Bossone E, Imazio M. Transthoracic echocardiography for arrhythmic mitral valve prolapse: Phenotypic characterization as first step. Echocardiography 2022; 39:1158-1170. [PMID: 36029124 DOI: 10.1111/echo.15439] [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: 05/03/2022] [Revised: 07/09/2022] [Accepted: 08/09/2022] [Indexed: 11/30/2022] Open
Abstract
Mitral valve prolapse (MVP) is the most frequent valvulopathy with a prevalence of 1.2%-2.4% in general population and it is characterized by a benign course. Although it can be associated with some complications, ventricular arrhythmias (VA) and sudden cardiac death (SCD) as ultimate expressions, are the most worrying. The estimated risk of SCD in MVP is between 0.2% and 1.9% per year including both MVP patients with left ventricular (LV) dysfunction due to severe MR and MVP patients without significant MR. The latter ones constitute a particular phenotype called "malignant MVP" characterized by bileaflet myxomatous prolapse, ECG repolarization abnormalities and complex VAs (c-VAs) with polymorphic/right bundle branch block morphology (RBBB) and LV fibrosis of the papillary muscles (PMs) and inferobasal wall secondary to mechanical stretching visualized as late gadolinium enhancement (LGE) areas by cardiac magnetic resonance (CMR). In MVP, the first diagnostic approach is transthoracic echocardiography (TTE) that defines the presence of mitral annular disjunction (MAD) which seems to be associated with "arrhythmic MVP" (AMVP). From an ECG point of view, AMVP is characterized by frequent premature ventricular contractions (PVCs) arising from one or both PMs, fascicular tissue, and outflow tract, as well as by T-wave inversion in the inferolateral leads. The aim of the present paper is to describe TTE red flags that could identify MVP patients at high risk to develop complex arrhythmias as supported by the corresponding findings of LGE-CMR and anatomy studies. TTE could be a co-partner in phenotyping high-risk arrhythmic MVP patients.
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Affiliation(s)
- Olga Vriz
- Heart Centre, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Abdulla Eltayeb
- Heart Centre, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Irene Landi
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Kashif Anwar
- Heart Centre, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Ali Alenazy
- Heart Centre, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Krassimira Hiristova
- Department of Noninvasive Diagnostic Imaging, National Heart Hospital, Sofia, Bulgaria
| | - Jarek Kasprzak
- Cardiology, Bieganski Hospital, Medical University, Lodz, Poland
| | - Antonello D'Andrea
- Department of Cardiology, Umberto I Hospital, Luigi Vanvitelli University - Nocera Inferiore (ASL Salerno), Caserta, Italy
| | - Bandar Amro
- Heart Centre, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Giuseppe Limongelli
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Eduardo Bossone
- Azienda Ospedaliera di Rilevanza Nazionale "A. Cardarelli" Hospital, Naples, Italy
| | - Massimo Imazio
- Department of Cardiology, University Hospital Santa Maria della Misericordia, Udine, Italy
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19
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Xiling Z, Puehler T, Sondergaard L, Frank D, Seoudy H, Mohammad B, Müller OJ, Sellers S, Meier D, Sathananthan J, Lutter G. Transcatheter Mitral Valve Repair or Replacement: Competitive or Complementary? J Clin Med 2022; 11:jcm11123377. [PMID: 35743448 PMCID: PMC9225133 DOI: 10.3390/jcm11123377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/25/2022] [Accepted: 05/29/2022] [Indexed: 02/04/2023] Open
Abstract
Over the last two decades, transcatheter devices have been developed to repair or replace diseased mitral valves (MV). Transcatheter mitral valve repair (TMVr) devices have been proven to be efficient and safe, but many anatomical structures are not compatible with these technologies. The most significant advantage of transcatheter mitral valve replacement (TMVR) over transcatheter repair is the greater and more reliable reduction in mitral regurgitation. However, there are also potential disadvantages. This review introduces the newest TMVr and TMVR devices and presents clinical trial data to identify current challenges and directions for future research.
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Affiliation(s)
- Zhang Xiling
- Department of Cardiovascular Surgery, University Medical Center Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany; (Z.X.); (T.P.); (B.M.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, 24105 Kiel, Germany; (D.F.); (O.J.M.)
| | - Thomas Puehler
- Department of Cardiovascular Surgery, University Medical Center Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany; (Z.X.); (T.P.); (B.M.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, 24105 Kiel, Germany; (D.F.); (O.J.M.)
| | - Lars Sondergaard
- Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark;
| | - Derk Frank
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, 24105 Kiel, Germany; (D.F.); (O.J.M.)
- Department of Internal Medicine III (Cardiology, Angiology, and Critical Care), University Medical Center Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany;
| | - Hatim Seoudy
- Department of Internal Medicine III (Cardiology, Angiology, and Critical Care), University Medical Center Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany;
| | - Baland Mohammad
- Department of Cardiovascular Surgery, University Medical Center Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany; (Z.X.); (T.P.); (B.M.)
| | - Oliver J. Müller
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, 24105 Kiel, Germany; (D.F.); (O.J.M.)
- Department of Internal Medicine III (Cardiology, Angiology, and Critical Care), University Medical Center Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany;
| | - Stephanie Sellers
- Centre for Cardiovascular Innovation, St Paul’s and Vancouver General Hospital, Vancouver, BC V6Z 1Y6, Canada; (S.S.); (D.M.); (J.S.)
- Cardiovascular Translational Laboratory, St Paul’s Hospital & Centre for Heart Lung Innovation, Vancouver, BC V6Z 1Y6, Canada
- Centre for Heart Valve Innovation, St. Paul’s Hospital, University of British Columbia, Vancouver, BC V6Z 1Y6, Canada
| | - David Meier
- Centre for Cardiovascular Innovation, St Paul’s and Vancouver General Hospital, Vancouver, BC V6Z 1Y6, Canada; (S.S.); (D.M.); (J.S.)
- Cardiovascular Translational Laboratory, St Paul’s Hospital & Centre for Heart Lung Innovation, Vancouver, BC V6Z 1Y6, Canada
- Centre for Heart Valve Innovation, St. Paul’s Hospital, University of British Columbia, Vancouver, BC V6Z 1Y6, Canada
| | - Janarthanan Sathananthan
- Centre for Cardiovascular Innovation, St Paul’s and Vancouver General Hospital, Vancouver, BC V6Z 1Y6, Canada; (S.S.); (D.M.); (J.S.)
- Cardiovascular Translational Laboratory, St Paul’s Hospital & Centre for Heart Lung Innovation, Vancouver, BC V6Z 1Y6, Canada
- Centre for Heart Valve Innovation, St. Paul’s Hospital, University of British Columbia, Vancouver, BC V6Z 1Y6, Canada
| | - Georg Lutter
- Department of Cardiovascular Surgery, University Medical Center Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany; (Z.X.); (T.P.); (B.M.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, 24105 Kiel, Germany; (D.F.); (O.J.M.)
- Correspondence: ; Tel.: +49-(0)43150022031; Fax: +49-(0)043150022048
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20
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Guigui SA, Torres C, Escolar E, Mihos CG. Systolic anterior motion of the mitral valve in hypertrophic cardiomyopathy: a narrative review. J Thorac Dis 2022; 14:2309-2325. [PMID: 35813751 PMCID: PMC9264047 DOI: 10.21037/jtd-22-182] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/15/2022] [Indexed: 11/06/2022]
Abstract
Background and Objective The prevalence of hypertrophic cardiomyopathy (HCM) is estimated to be 1 in 200 to 500 individuals, with systolic anterior motion (SAM) of the mitral valve (MV) and left ventricular outflow tract (LVOT) obstruction present in 60% to 70%. In this narrative review, we aim to elucidate the pathophysiology of SAM-septal contact and LVOT obstruction in HCM by presenting a detailed review on the anatomy of the MV apparatus in HCM, examining the various existing theories pertaining to the SAM phenomenon as supported by cardiac imaging, and providing a critical assessment of management strategies for SAM in HCM. Methods A literature review was performed using PubMed, EMBASE, Ovid, and the Cochrane Library, of all scientific articles published through December 2021. A focus was placed on descriptive studies, reports correlating echocardiographic findings with pathologic diagnosis, and outcomes studies. Key Content and Findings The pathophysiology of SAM involves the complex interplay between HCM morphology, MV apparatus anatomic abnormalities, and labile hemodynamic derangements. Echocardiography and cardiac magnetic resonance (CMR) vector flow mapping have identified drag forces, as opposed to the "Venturi effect", as the main hydraulic forces responsible for SAM. The degree of mitral regurgitation with SAM is variable, and its severity is correlated with degree of LVOT obstruction and outcomes. First line therapy for the amelioration of SAM and LVOT obstruction is medical therapy with beta-blockers, non-dihydropyridine calcium-channel blockers, and disopyramide, in conjunction with lifestyle modifications. In refractory cases septal reduction therapy is performed, which may be combined with a 'resect-plicate-release' procedure, anterior mitral leaflet extension, surgical edge-to-edge MV repair, anterior mitral leaflet retention plasty, or secondary chordal cutting. Conclusions Recent scientific advances in the field of HCM have allowed for a maturation of our understanding of the SAM phenomenon. Cardiac imaging plays a critical role in its diagnosis, treatment, and surveillance, and in our ability to apply the appropriate therapeutic regimens. The increasing prevalence of HCM places an emphasis on continued basic and clinical research to further improve outcomes for this challenging population.
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Affiliation(s)
- Sarah A Guigui
- Echocardiography Laboratory, Columbia University Division of Cardiology, Mount Sinai Heart Institute, Miami Beach, FL, USA.,Columbia University Division of Cardiology, Mount Sinai Heart Institute, Miami Beach, FL, USA
| | - Christian Torres
- Columbia University Division of Cardiology, Mount Sinai Heart Institute, Miami Beach, FL, USA
| | - Esteban Escolar
- Columbia University Division of Cardiology, Mount Sinai Heart Institute, Miami Beach, FL, USA.,Coronary Care Unit, Columbia University Division of Cardiology, Mount Sinai Heart Institute, Miami Beach, FL, USA
| | - Christos G Mihos
- Echocardiography Laboratory, Columbia University Division of Cardiology, Mount Sinai Heart Institute, Miami Beach, FL, USA.,Columbia University Division of Cardiology, Mount Sinai Heart Institute, Miami Beach, FL, USA
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21
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Adabifirouzjaei F, Hsiao A, DeMaria AN. Mitral Valve Prolapse-The Role of Cardiac Imaging Modalities. STRUCTURAL HEART : THE JOURNAL OF THE HEART TEAM 2022; 6:100024. [PMID: 37273735 PMCID: PMC10236887 DOI: 10.1016/j.shj.2022.100024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/22/2021] [Accepted: 10/28/2021] [Indexed: 06/06/2023]
Abstract
Mitral valve prolapse (MVP) is the most common nonischemic mitral regurgitation etiology and mitral abnormality requiring surgery in the Western world. There is an increasing awareness that pathological findings in MVP are not confined to the valve tissue; rather, it is a complex disease, involving the mitral valve apparatus, cardiac hemodynamics, and cardiac structure. Imaging has played a fundamental role in the understanding of the diagnosis, prevalence, and consequences of MVP. The diagnosis of MVP by imaging is based upon demonstrating valve leaflets ascending into the left atrium through the saddle-shaped annulus. Transthoracic and transesophageal echocardiography are the primary modalities in the diagnosis and assessment of MVP patients and must include careful assessment of the leaflets, annulus, chords, and papillary muscles. High-spatial-resolution imaging modalities such as cardiac magnetic resonance images and cardiac computed tomography play a secondary role in this regard and can demonstrate the anatomical relation between the mitral valve annulus and leaflet excursion for appropriate diagnosis. Ongoing development of new methods of cardiac imaging can help us to accurately understand the mechanism, diagnose the disease, develop an appropriate treatment plan, and estimate the risk for sudden death. Recently, several new observations with respect to prolapse have been derived from cardiac imaging including three-dimensional echocardiography and tissue-Doppler imaging. The aim of this article is to present these new imaging-derived insights for the diagnosis, risk assessment, treatment, and follow-up of patients with MVP.
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Affiliation(s)
- Fatemeh Adabifirouzjaei
- Department of Cardiology, Sulpizio Cardiovascular Center, University of California San Diego, San Diego, California, USA
| | - Albert Hsiao
- Department of Radiology, University of California San Diego, San Diego, California, USA
| | - Anthony N. DeMaria
- Department of Cardiology, Sulpizio Cardiovascular Center, University of California San Diego, San Diego, California, USA
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22
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Passos LSA, Becker-Greene D, Braulio R, Le TD, Gelape CL, de Almeida LFR, Rocha DPA, Gomes CAP, Esteves WAM, Passaglia LG, Dal-Bianco JP, Levine RA, Aikawa M, Hung J, Dutra WO, Nunes MCP, Aikawa E. Proinflammatory Matrix Metalloproteinase-1 Associates With Mitral Valve Leaflet Disruption Following Percutaneous Mitral Valvuloplasty. Front Cardiovasc Med 2022; 8:804111. [PMID: 35127864 PMCID: PMC8811173 DOI: 10.3389/fcvm.2021.804111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/20/2021] [Indexed: 11/30/2022] Open
Abstract
Mitral regurgitation (MR) is a major complication of the percutaneous mitral valvuloplasty (PMV). Despite high technical expertise and cumulative experience with the procedure, the incidence rate of severe MR has not decreased. Although some of MR can be anticipated by echocardiographic analysis; leaflet tearing, which leads to the most dreaded type of MR, remains unpredictable. Irregular valvular collagen remodeling is likely to compromise tissue architecture and increase the tearing risk during PMV balloon inflation. In this study, we evaluated histological and molecular characteristics of excised mitral valves from patients with rheumatic mitral stenosis (MS) who underwent emergency surgery after PMV due to severe MR caused by leaflet tear. Those findings were compared with patients who underwent elective mitral valve replacement surgery owing to severe MS, in whom PMV was not indicated. In vitro assay using peripheral blood mononuclear cells was performed to better understand the impact of the cellular and molecular alterations identified in leaflet tear mitral valve specimens. Our analysis showed that focal infiltration of inflammatory cells contributes to accumulation of MMP-1 and IFN-γ in valve leaflets. Moreover, we showed that IFN-γ increase the expression of MMP-1 in CD14+ cells (monocytes) in vitro. Thus, inflammatory cells contribute to unevenly remodel collagen resulting in variable thickening causing abnormalities in leaflet architecture making them more susceptible to laceration.
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Affiliation(s)
- Livia S. A. Passos
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Dakota Becker-Greene
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Renato Braulio
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Thanh-Dat Le
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Cláudio L. Gelape
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Luís Felipe R. de Almeida
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Divino Pedro A. Rocha
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Carlos Augusto P. Gomes
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - William A. M. Esteves
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Luiz G. Passaglia
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Jacob P. Dal-Bianco
- Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Robert A. Levine
- Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Masanori Aikawa
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
- Department of Human Pathology, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Judy Hung
- Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Walderez O. Dutra
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, Belo Horizonte, Brazil
| | - Maria Carmo P. Nunes
- School of Medicine, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Elena Aikawa
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
- Department of Human Pathology, Sechenov First Moscow State Medical University, Moscow, Russia
- *Correspondence: Elena Aikawa
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Subramani S. Comparison between 2D and 3D echocardiography for quantitative assessment of mitral regurgitation: Current status. Ann Card Anaesth 2022; 25:198-199. [PMID: 35417968 PMCID: PMC9244269 DOI: 10.4103/aca.aca_238_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Narang H, Rego BV, Khalighi AH, Aly A, Pouch AM, Gorman RC, Gorman Iii JH, Sacks MS. Pre-surgical Prediction of Ischemic Mitral Regurgitation Recurrence Using In Vivo Mitral Valve Leaflet Strains. Ann Biomed Eng 2021; 49:3711-3723. [PMID: 33837494 PMCID: PMC9134826 DOI: 10.1007/s10439-021-02772-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/27/2021] [Indexed: 10/21/2022]
Abstract
Ischemic mitral regurgitation (IMR) is a prevalent cardiac disease associated with substantial morbidity and mortality. Contemporary surgical treatments continue to have limited long-term success, in part due to the complex and multi-factorial nature of IMR. There is thus a need to better understand IMR etiology to guide optimal patient specific treatments. Herein, we applied our finite element-based shape-matching technique to non-invasively estimate peak systolic leaflet strains in human mitral valves (MVs) from in-vivo 3D echocardiographic images taken immediately prior to and post-annuloplasty repair. From a total of 21 MVs, we found statistically significant differences in pre-surgical MV size, shape, and deformation patterns between the with and without IMR recurrence patient groups at 6 months post-surgery. Recurrent MVs had significantly less compressive circumferential strains in the anterior commissure region compared to the recurrent MVs (p = 0.0223) and were significantly larger. A logistic regression analysis revealed that average pre-surgical circumferential leaflet strain in the Carpentier A1 region independently predicted 6-month recurrence of IMR (optimal cutoff value - 18%, p = 0.0362). Collectively, these results suggest greater disease progression in the recurrent group and underscore the highly patient-specific nature of IMR. Importantly, the ability to identify such factors pre-surgically could be used to guide optimal treatment methods to reduce post-surgical IMR recurrence.
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Affiliation(s)
- Harshita Narang
- James T. Willerson Center for Cardiovascular Modeling and Simulation, Oden Institute for Computational Engineering and Sciences, Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Bruno V Rego
- James T. Willerson Center for Cardiovascular Modeling and Simulation, Oden Institute for Computational Engineering and Sciences, Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Amir H Khalighi
- James T. Willerson Center for Cardiovascular Modeling and Simulation, Oden Institute for Computational Engineering and Sciences, Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Ahmed Aly
- Gorman Cardiovascular Research Group, Smilow Center for Translational Research, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Alison M Pouch
- Gorman Cardiovascular Research Group, Smilow Center for Translational Research, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Robert C Gorman
- Gorman Cardiovascular Research Group, Smilow Center for Translational Research, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph H Gorman Iii
- Gorman Cardiovascular Research Group, Smilow Center for Translational Research, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael S Sacks
- James T. Willerson Center for Cardiovascular Modeling and Simulation, Oden Institute for Computational Engineering and Sciences, Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA.
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25
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Xu B, Kocyigit D, Wang TKM, Tan CD, Rodriguez ER, Pettersson GB, Unai S, Griffin BP. Mitral annular calcification and valvular dysfunction: multimodality imaging evaluation, grading, and management. Eur Heart J Cardiovasc Imaging 2021; 23:e111-e122. [PMID: 34591959 DOI: 10.1093/ehjci/jeab185] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/02/2021] [Indexed: 11/12/2022] Open
Abstract
Mitral annular calcification (MAC) refers to calcium deposition in the fibrous skeleton of the mitral valve. It has many cardiovascular associations, including mitral valve dysfunction, elevated cardiovascular risk, arrhythmias, and endocarditis. Echocardiography conventionally is the first-line imaging modality for anatomic assessment, and evaluation of mitral valve function. Cardiac computed tomography (CT) has demonstrated importance as an imaging modality for the evaluation and planning of related procedures. It also holds promise in quantitative grading of MAC. Currently, there is no universally accepted definition or classification system of MAC severity. We review the multimodality imaging evaluation of MAC and associated valvular dysfunction and propose a novel classification system based on qualitative and quantitative measurements derived from echocardiography and cardiac CT.
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Affiliation(s)
- Bo Xu
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk J1-5, Cleveland, OH 44195, USA
| | - Duygu Kocyigit
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk J1-5, Cleveland, OH 44195, USA
| | - Tom Kai Ming Wang
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk J1-5, Cleveland, OH 44195, USA
| | - Carmela D Tan
- Department of Cardiovascular Anatomical Pathology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - E Rene Rodriguez
- Department of Cardiovascular Anatomical Pathology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Gösta B Pettersson
- Department of Thoracic and Cardiovascular Surgery, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Shinya Unai
- Department of Thoracic and Cardiovascular Surgery, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Brian P Griffin
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk J1-5, Cleveland, OH 44195, USA
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Dejsupa C, Chotivatanapong T, Caputo M, Vohra HA. Current Perspectives on Contemporary Rheumatic Mitral Valve Repair. INNOVATIONS-TECHNOLOGY AND TECHNIQUES IN CARDIOTHORACIC AND VASCULAR SURGERY 2021; 16:510-516. [PMID: 34478343 PMCID: PMC8679173 DOI: 10.1177/15569845211032942] [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] [Indexed: 11/19/2022]
Abstract
The surgical management of rheumatic mitral valve disease remains a challenge for
cardiac surgeons. Durability of mitral valve repair (MVr) is likely compromised
not simply due to high technical demand, but surgeon reluctance, despite
boasting copious advantages over MV replacement. This comprehensive review aims
to evoke a deeper understanding of MVr concepts necessary to abate these
limitations and shift mindset towards a more holistic approach to repair.
Details of commonly utilized techniques in contemporary MVr for rheumatic heart
disease will be discussed. Of importance, the reparative procedures will be
mapped to an in-depth physiological exploration of the mitral complex-dynamism
and rheumatic interplay. This is further emphasized by outlining the current
“aggressive” resection strategy in contemporary rheumatic MVr.
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Affiliation(s)
- Chaninda Dejsupa
- 1980 Department of Cardiac Surgery/Cardiovascular Sciences, University of Bristol, UK
| | - Taweesak Chotivatanapong
- 59070 Department of Cardiothoracic Surgery, Central Chest Institute of Thailand, Nonthabhuri, Thailand
| | - Massimo Caputo
- 1980 Department of Cardiac Surgery/Cardiovascular Sciences, University of Bristol, UK
| | - Hunaid A Vohra
- 1980 Department of Cardiac Surgery/Cardiovascular Sciences, University of Bristol, UK
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Bui HT, Khair N, Yeats B, Gooden S, James SP, Dasi LP. Transcatheter Heart Valves: A Biomaterials Perspective. Adv Healthc Mater 2021; 10:e2100115. [PMID: 34038627 DOI: 10.1002/adhm.202100115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/23/2021] [Indexed: 11/11/2022]
Abstract
Heart valve disease is prevalent throughout the world, and the number of heart valve replacements is expected to increase rapidly in the coming years. Transcatheter heart valve replacement (THVR) provides a safe and minimally invasive means for heart valve replacement in high-risk patients. The latest clinical data demonstrates that THVR is a practical solution for low-risk patients. Despite these promising results, there is no long-term (>20 years) durability data on transcatheter heart valves (THVs), raising concerns about material degeneration and long-term performance. This review presents a detailed account of the materials development for THVRs. It provides a brief overview of THVR, the native valve properties, the criteria for an ideal THV, and how these devices are tested. A comprehensive review of materials and their applications in THVR, including how these materials are fabricated, prepared, and assembled into THVs is presented, followed by a discussion of current and future THVR biomaterial trends. The field of THVR is proliferating, and this review serves as a guide for understanding the development of THVs from a materials science and engineering perspective.
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Affiliation(s)
- Hieu T. Bui
- Department of Biomedical Engineering Georgia Institute of Technology 387 Technology Cir NW Atlanta GA 30313 USA
| | - Nipa Khair
- School of Advanced Materials Discovery Colorado State University 700 Meridian Ave Fort Collins CO 80523 USA
| | - Breandan Yeats
- Department of Biomedical Engineering Georgia Institute of Technology 387 Technology Cir NW Atlanta GA 30313 USA
| | - Shelley Gooden
- Department of Biomedical Engineering Georgia Institute of Technology 387 Technology Cir NW Atlanta GA 30313 USA
| | - Susan P. James
- School of Advanced Materials Discovery Colorado State University 700 Meridian Ave Fort Collins CO 80523 USA
| | - Lakshmi Prasad Dasi
- Department of Biomedical Engineering Georgia Institute of Technology 387 Technology Cir NW Atlanta GA 30313 USA
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Vieira MLC, Branco CEDB, Gazola ASL, Vieira PPAC, Benvenuti LA, Demarchi LMMF, Gutierrez PS, Aiello VD, Tarasoutchi F, Sampaio RO. 3D Echocardiography for Rheumatic Heart Disease Analysis: Ready for Prime Time. Front Cardiovasc Med 2021; 8:676938. [PMID: 34355026 PMCID: PMC8329529 DOI: 10.3389/fcvm.2021.676938] [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: 03/11/2021] [Accepted: 06/15/2021] [Indexed: 11/13/2022] Open
Abstract
Rheumatic heart disease (RHD) remains to be a very important health issue worldwide, mainly in underdeveloped countries. It continues to be a leading cause of morbidity and mortality throughout developing countries. RHD is a delayed non-suppurative immunologically mediated inflammatory response to the throat infection caused by a hemolytic streptococcus from the A group (Streptococcus pyogenes). RHD keeps position 1 as the most common cardiovascular disease in young people aged <25 years considering all the continents. The disease can lead to valvular cardiac lesions as well as to carditis. Rheumatic fever valvular injuries lead most commonly to the fusion and thickening of the edges of the cusps and to the fusion, thickening, and shortening of the chordae and ultimately to calcification of the valves. Valvular commissures can also be deeply compromised, leading to severe stenosis. Atrial and ventricular remodeling is also common following rheumatic infection. Mixed valvular lesions are more common than isolated valvular disorders. Echocardiography is the most relevant imaging technique not only to provide diagnostic information but also to enable prognostic data. Further, it presents a very important role for the correction of complications after surgical repair of rheumatic heart valvulopathies. Three-dimensional (3D) echocardiography provides additional anatomical and morphofunctional information of utmost importance for patients presenting rheumatic valvopathies. Accordingly, three-dimensional echocardiography is ready for routine use in patients with RHD presenting with valvular abnormalities.
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Affiliation(s)
- Marcelo Luiz Campos Vieira
- Hospital Israelita Albert Einstein, São Paulo, Brazil
- Heart Institute (InCor), São Paulo University Medical School, São Paulo, Brazil
| | | | | | | | | | | | | | | | - Flávio Tarasoutchi
- Hospital Israelita Albert Einstein, São Paulo, Brazil
- Heart Institute (InCor), São Paulo University Medical School, São Paulo, Brazil
| | - Roney Orismar Sampaio
- Hospital Israelita Albert Einstein, São Paulo, Brazil
- Heart Institute (InCor), São Paulo University Medical School, São Paulo, Brazil
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Joseph N, Craft M, Mill L, Erickson CC, Danford DA, Kutty S, Li L. Assessment of mitral valve function in children and young adults with hypertrophic cardiomyopathy using three-dimensional echocardiography. Int J Cardiol 2021; 332:182-188. [PMID: 33753187 DOI: 10.1016/j.ijcard.2021.03.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 03/09/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The objective of this study was to assess papillary muscle (PM) and mitral valve (MV) structure and function in children and young adults with mild and moderate hypertrophic cardiomyopathy (HCM) using real-time three-dimensional echocardiography (3DE) and to correlate them with HCM related adverse outcomes. METHODS Transthoracic research 3DE was performed in HCM patients and controls matched for age and gender. Anterolateral and posteromedial PM mass, apical displacement of anterolateral PM, and left ventricular (LV) mass were measured and indexed to body surface area. The MV annulus and leaflet structure and function were analyzed. Individual PMs were manually planimetered by tracing the endocardial borders on each mid systole frame, taking care to distinguish PMs as distinct from the LV wall. Apical PM displacement was expressed as ratio of the distance between the apex and the base of the anterolateral PM to the entire length of the LV lateral wall (APL index). All 3DE measurements were correlated to adverse outcomes. RESULTS Forty subjects were studied, including 20 HCM patients (age 18.1 ± 9.6 years, 16 male and 4 female), and 20 controls (18.2 ± 9.6 years, 16 male and 4 female). The indexed LV mass in HCM was 74.8 ± 25.8 g/m2 compared to 50.8 ± 12.4 g/m2 in controls (p = 0.001). The anterolateral, posteromedial and combined PM mass were 3.1 ± 2.2 g/m2, 1.7 ± 1.2 g/m2 and 4.9 ± 2.7 g/m2 in HCM, in contrast to respective measurements of 1.1 ± 0.6 g/m2, 1.2 ± 0.6 g/m2 and 2.3 ± 0.8 g/m2 in controls (p < 0.001, p = 0.062, and p < 0.001, respectively). The mitral valve annular parameters (annulus circumference, height and area) in HCM were not significantly different from controls. The APL index in HCM was less than in controls (0.44 ± 0.07 vs. 0.55 ± 0.04, p < 0.001). The LV lateral wall length and LV mass correlated with adverse HCM outcomes, while the APL index and PM total mass were not associated with adverse events. CONCLUSION It is feasible to evaluate PM muscles and MV annulus geometry in children and young adults with HCM using 3DE. The morphologic and functional changes of anterolateral PM may occur in the absence of MV annulus changes. Prospective validation will be required to determine if LV lateral wall length and LV mass may be used as predictors of adverse events.
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Affiliation(s)
- Navya Joseph
- University of Nebraska Medical Center, Omaha, NE, United States
| | - Mary Craft
- University of Nebraska Medical Center, Omaha, NE, United States; Children's Hospital and Medical Center, Omaha, NE, United States
| | - LuAnn Mill
- University of Nebraska Medical Center, Omaha, NE, United States
| | - Christopher C Erickson
- University of Nebraska Medical Center, Omaha, NE, United States; Children's Hospital and Medical Center, Omaha, NE, United States
| | - David A Danford
- University of Nebraska Medical Center, Omaha, NE, United States; Children's Hospital and Medical Center, Omaha, NE, United States
| | - Shelby Kutty
- Johns Hopkins Hospital and School of Medicine, Baltimore, MD, United States.
| | - Ling Li
- University of Nebraska Medical Center, Omaha, NE, United States; Children's Hospital and Medical Center, Omaha, NE, United States
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Fluid-Structure Interaction Analyses of Biological Systems Using Smoothed-Particle Hydrodynamics. BIOLOGY 2021; 10:biology10030185. [PMID: 33801566 PMCID: PMC8001855 DOI: 10.3390/biology10030185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/23/2021] [Accepted: 02/26/2021] [Indexed: 12/21/2022]
Abstract
Due to the inherent complexity of biological applications that more often than not include fluids and structures interacting together, the development of computational fluid-structure interaction models is necessary to achieve a quantitative understanding of their structure and function in both health and disease. The functions of biological structures usually include their interactions with the surrounding fluids. Hence, we contend that the use of fluid-structure interaction models in computational studies of biological systems is practical, if not necessary. The ultimate goal is to develop computational models to predict human biological processes. These models are meant to guide us through the multitude of possible diseases affecting our organs and lead to more effective methods for disease diagnosis, risk stratification, and therapy. This review paper summarizes computational models that use smoothed-particle hydrodynamics to simulate the fluid-structure interactions in complex biological systems.
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Nemes A, Kormányos Á, Domsik P, Kalapos A, Gyenes N, Lengyel C. Normal reference values of three-dimensional speckle-tracking echocardiography-derived mitral annular dimensions and functional properties in healthy adults: Insights from the MAGYAR-Healthy Study. JOURNAL OF CLINICAL ULTRASOUND : JCU 2021; 49:234-239. [PMID: 32808360 DOI: 10.1002/jcu.22875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION There is a limited number of echocardiographic studies determining mitral annular (MA) dimensions in healthy subjects. The present study aimed to establish normal reference values of three-dimensional speckle-tracking echocardiography-derived MA dimensions and functional properties in healthy adults in relation with age and gender. METHODS The present study comprised 298 healthy adult subjects. From this population, 94 subjects were excluded due to inadequate image quality. Therefore the remaining group consisted of 204 subjects with the mean age of 33.88 ± 12.97 years (107 males). The population sample was further divided into age categories: 18-29 years (n = 105; mean age: 24.11 ± 2.98 years, 51 males), 30-39 years (n = 44; mean age: 33.80 ± 2.39 years, 31 males), 40-49 years (n = 19; mean age: 43.47 ± 3.18 years, 11 males) and ≥50 years of age (n = 36, mean age: 57.42 ± 6.11 years, 14 males). RESULTS End-diastolic MA dimensions did not change significantly during the decades. End-systolic MA diameter, area, and perimeter were larger over the age of 50 years than in the 18-29 year-old group. MA fractional area change was found smaller over the age of 50 years than in 18-29-year-old group. While end-diastolic MA variables did not show gender-differences, end-systolic MA area and perimeter were lower in females in the 18-29-year-old group. CONCLUSIONS End-systolic MA dimensions change over decades, resulting in a special pattern of MA functional properties with significant reduction over the age of 50 years.
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Affiliation(s)
- Attila Nemes
- 2nd Department of Medicine and Cardiology Center, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Árpád Kormányos
- 2nd Department of Medicine and Cardiology Center, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Péter Domsik
- 2nd Department of Medicine and Cardiology Center, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Anita Kalapos
- 2nd Department of Medicine and Cardiology Center, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Nándor Gyenes
- 2nd Department of Medicine and Cardiology Center, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Csaba Lengyel
- 1st Department of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
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Identification of a High-risk Subgroup With Malignant Mitral Valve Prolapse Who Are Predisposed to Sudden Cardiac Death: A Review. Crit Pathw Cardiol 2021; 20:31-35. [PMID: 32947378 DOI: 10.1097/hpc.0000000000000242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Mitral valve prolapse (MVP) affects approximately 170 million people worldwide; however, phenotypically, there is a wide variety of heterogeneity. In particular subsets, the incidence of sudden cardiac death is calculated to be 998 per 100,000 person-years, which is significantly increased when compared with the general population of MVP patients. Individuals with high-risk features have been identified as young females with bileaflet MVP and electrocardiogram findings of frequent complex ectopy, ST-T wave changes, and inferior T wave inversions. Supplemental imaging modalities in this subgroup demonstrate redundant leaflets and chordae on 2-dimensional transthoracic echocardiography along with varying severity of mitral annular disjunction. Detailed morphologic assessment by 3-dimensional echocardiography provides a quantitative assessment of annular disjunction along with left ventricular longitudinal and basal circumferential strain patterns. Late gadolinium enhancement on cardiac magnetic resonance imaging identifies diffuse and isolated left ventricle fibrosis involving the fascicles and papillary muscles, which has been visualized in isolation during autopsy. Findings of this review propose that sudden cardiac death as a result of malignant arrhythmias arises from automaticity, complex ectopy, and reentry at the level of the fascicles and papillary muscles. The repetitive mechanical stress provides a nidus for the development of both micro- and macrofibrosis easily identified by late gadolinium enhancement on cardiac magnetic resonance imaging. Escalation to electrophysiology studies and early intervention could provide new targeted lifesaving therapies.
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Jafari-Fesharaki M, Alizadehasl A, Mohammadi K. Left ventricle assessment by three-dimensional HeartModel software in different types of mitral valve prolapse (Barlow's disease and fibroelastic deficiency) with severe mitral regurgitation. ARYA ATHEROSCLEROSIS 2021; 17:1-7. [PMID: 36338527 PMCID: PMC9635726 DOI: 10.22122/arya.v17i0.2089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 07/27/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Mitral valve prolapse (MVP) is the most common cause of isolated mitral regurgitation (MR) requiring surgical repair. Therapeutic interventions should be considered before irreversible left ventricular (LV) dysfunction in asymptomatic patients. Measurement of LV volume and function is very important. Because of two-dimensional (2D) echocardiography limitations, three-dimensional (3D) measurement is preferred on the strength of its speed, accuracy, and reproducibility, which are comparable with those of magnetic resonance imaging (MRI). METHODS This study was conducted between April 2018 and February 2019 on 50 patients with different MVP types and severe MR scheduled for valve surgery at Rajaie Cardiovascular Research Center, Tehran, Iran, with the aid of the HeartModelAnatomical intelligence (A.I.) (EPIQ 7: new 3D software) for measurement of LV volume indices and function. RESULTS Patients with the Barlow syndrome had a greater drop in LV ejection fraction (LVEF) than those with fibroelastic deficiency (FED) (57.05% ± 6.00% vs. 65.00% ± 4.08%; P = 0.001). LV volume was larger in patients with flail mitral valve (MV) than in those with non-flail MV (165 cc vs. 118 cc; P = 0.001). LVEF declined more in patients with the involvement of both leaflets than in those with the involvement of the anterior leaflet alone (56.00% ± 7.10% vs. 57.70% ± 4.30%; P = 0.021). CONCLUSION The LVEF drop was more remarkable in patients with the Barlow syndrome (both flail and non-flail MV) than in those with FED. It is, therefore, advisable that such patients be monitored more meticulously via the 3D HeartModelA.I. method in terms of LVEF and LV size to prevent irreversible effects on LV function and to reduce mortality.
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Affiliation(s)
- Mehrdad Jafari-Fesharaki
- Assistant Professor, Department of Cardiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azin Alizadehasl
- Professor, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Kamran Mohammadi
- Assistant Professor, Department of Cardiology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran,Address for correspondence: Kamran Mohammadi; Assistant Professor, Department of Cardiology, School of Medicine, Tabriz
University of Medical Sciences, Tabriz, Iran;
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Abstract
Severe mitral valve regurgitation (MR) carries a significant burden both in prognosis and quality of life of patients, as well as on healthcare systems, with high rates of hospitalization for heart failure. While mitral valve surgery constitutes the first-line treatment option for primary MR in suitable patients, surgical treatment for secondary severe MR remains controversial, with a substantial lack of evidence on a survival benefit. In recent decades, percutaneous mitral valve repair has emerged as an alternative treatment for patients deemed not suitable for surgery. Among several devices under development or evaluation, the MitraClip system is the most widespread and is supported by the strongest evidence. While the role of MitraClip in patients with chronic primary MR who are not deemed suitable for surgery is well established, with consistent data showing improvement in both prognosis and quality of life, MitraClip treatment in secondary MR is a rapidly evolving field. Two recent randomized clinical trials generated apparently controversial results but actually provided an interesting pathophysiologic frame that could help discerning patients who will benefit from the procedure versus patients who will not. In this review, we will discuss current treatment options for mitral regurgitation, focusing on percutaneous mitral valve repair with the MitraClip system.
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Dal-Bianco JP, Levine RA, Hung J. Mitral Regurgitation Postinfarction: The Mitral Valve Adapts to the Times. Circ Cardiovasc Imaging 2020; 13:e012130. [PMID: 33317331 DOI: 10.1161/circimaging.120.012130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jacob P Dal-Bianco
- Massachusetts General Hospital, Division of Cardiology, Cardiac Ultrasound Laboratory, Harvard Medical School, Boston, MA, USA (J.P.D-B., R.A.L., J.H.)
| | - Robert A Levine
- Massachusetts General Hospital, Division of Cardiology, Cardiac Ultrasound Laboratory, Harvard Medical School, Boston, MA, USA (J.P.D-B., R.A.L., J.H.)
| | - Judy Hung
- Massachusetts General Hospital, Division of Cardiology, Cardiac Ultrasound Laboratory, Harvard Medical School, Boston, MA, USA (J.P.D-B., R.A.L., J.H.)
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Late gadolinium enhancement location assessed by magnetic resonance and arrhythmogenic risk in hypertrophic cardiomyopathy. Rev Port Cardiol 2020; 39:615-621. [PMID: 33168362 DOI: 10.1016/j.repc.2019.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/03/2019] [Accepted: 12/16/2019] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION AND OBJECTIVES Late gadolinium enhancement (LGE) extent has emerged as a predictor of sudden cardiac death (SCD) in patients with hypertrophic cardiomyopathy (HCM), however little is known about the arrhythmogenic relevance of its specific location in the left ventricle. Our aim was to analyze the influence of LGE location on the occurrence of ventricular arrhythmias (VA) and SCD in patients with HCM. METHODS We performed a retrospective analysis of clinical and Holter records of HCM patients who underwent cardiac magnetic resonance at our center. LGE extent and distribution were assessed using the American Heart Association 17-segment model. VA was defined as non-sustained or sustained ventricular tachycardia, ventricular fibrillation or SCD. RESULTS Sixty-one patients (age 57.0±16.7 years) were included and VA occurred in 24.6% (n=15). Patients with VA showed greater LGE extent than those without (7.40±5.3 vs. 3.52±3.0 segments, p=0.007). Analyzing the distribution of LGE, a set of arrhythmogenic segments (apex/basal inferior/basal anterolateral/mid inferoseptal) was found. The extent of LGE involvement in these segments was also greater in patients with VA (2.07±1.03 vs. 0.65±0.71 segments, p<0.001; area under the curve 0.861 for VA) and this difference remained significant after adjustment for potentially confounding variables. CONCLUSIONS The extent of LGE involvement of a set of segments with an apparent relation to cardiac areas of increased mechanical stress was significantly and independently associated with the occurrence of VA, suggesting that not only the extent but also the location of LGE is important for the assessment of SCD risk in HCM patients.
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Anatomy of Mitral Valve Complex as Revealed by Non-Invasive Imaging: Pathological, Surgical and Interventional Implications. J Cardiovasc Dev Dis 2020; 7:jcdd7040049. [PMID: 33158082 PMCID: PMC7712333 DOI: 10.3390/jcdd7040049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 12/18/2022] Open
Abstract
Knowledge of mitral valve (MV) anatomy has been accrued from anatomic specimens derived by cadavers, or from direct inspection during open heart surgery. However, today two-dimensional and three-dimensional transthoracic (2D/3D TTE) and transesophageal echocardiography (2D/3D TEE), computed tomography (CT) and cardiac magnetic resonance (CMR) provide images of the beating heart of unprecedented quality in both two and three-dimensional format. Indeed, over the last few years these non-invasive imaging techniques have been used for describing dynamic cardiac anatomy. Differently from the “dead” anatomy of anatomic specimens and the “static” anatomy observed during surgery, they have the unique ability of showing “dynamic” images from beating hearts. The “dynamic” anatomy gives us a better awareness, as any single anatomic arrangement corresponds perfectly to a specific function. Understanding normal anatomical aspects of MV apparatus is of a paramount importance for a correct interpretation of the wide spectrum of patho-morphological MV diseases. This review illustrates the anatomy of MV as revealed by non-invasive imaging describing physiological, pathological, surgical and interventional implications related to specific anatomical features of the MV complex.
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Barbosa AR, Almeida J, Guerreiro C, Teixeira P, Ladeiras Lopes R, Dias Ferreira N, Sousa O, Braga P. Late gadolinium enhancement location assessed by magnetic resonance and arrhythmogenic risk in hypertrophic cardiomyopathy. REVISTA PORTUGUESA DE CARDIOLOGIA (ENGLISH EDITION) 2020. [DOI: 10.1016/j.repce.2020.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Nunes MCP, Levine RA, Braulio R, Pascoal-Xavier MA, Elmariah S, Gomes NFA, Soares JR, Esteves WAM, Zeng X, Dal-Bianco JP, Passos LSA, Passaglia LG, Ribeiro VT, Gelape CL, Costa PHN, Lodi-Junqueira L, Dutra W, Tan TC, Aikawa E, Hung J. Mitral Regurgitation After Percutaneous Mitral Valvuloplasty: Insights Into Mechanisms and Impact on Clinical Outcomes. JACC Cardiovasc Imaging 2020; 13:2513-2526. [PMID: 32950446 DOI: 10.1016/j.jcmg.2020.07.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/13/2020] [Accepted: 07/23/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES The aim of this study was to assess the incidence, mechanisms, and outcomes of mitral regurgitation (MR) after percutaneous mitral valvuloplasty (PMV). BACKGROUND Significant MR continues to be a major complication of PMV, with a wide range in clinical presentation and prognosis. METHODS Consecutive patients with mitral stenosis undergoing PMV were prospectively enrolled. MR severity was evaluated by using quantitative echocardiographic criteria, and its mechanism was characterized by 3-dimensional transesophageal echocardiography, divided broadly into 4 categories based on the features contributing to the valve damage. B-type natriuretic peptide levels were obtained before and 24 h after the procedure. Endpoints estimated cardiovascular death or mitral valve (MV) replacement due to predominant MR. RESULTS A total of 344 patients, ages 45.1 ± 12.1 years, of whom 293 (85%) were women, were enrolled. Significant MR after PMV was found in 64 patients (18.6%). The most frequent mechanism of MR was commissural, which occurred in 22 (34.4%) patients, followed by commissural with posterior leaflet in 16 (25.0%), leaflets at central scallop or subvalvular damage in 15 (23.4%), and central MR in 11 (17.2%). During the mean follow-up period of 3 years (range 1 day to 10.6 years), 60 patients reached the endpoint. The event-free survival rates were similar among patients with mild or commissural MR, whereas patients with damaged central leaflet scallop or subvalvular apparatus had the worst outcome, with an event-free survival rate at 1 year of only 7%. Long-term outcome was predicted by net atrioventricular compliance (Cn) at baseline and post-procedural variables, including valve area, mean gradient, and magnitude of decrease in B-type natriuretic peptide levels, adjusted for the mechanism of MR. CONCLUSIONS Significant MR following PMV is a frequent event, mainly related to commissural splitting, with favorable clinical outcome. Parameters that express the relief of valve obstruction and the mechanism by which MR develops were predictors of long-term outcomes.
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Affiliation(s)
- Maria Carmo P Nunes
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | - Robert A Levine
- Cardiac Ultrasound Lab, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Renato Braulio
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Marcelo A Pascoal-Xavier
- Laboratory of Molecular Pathology, Department of Pathological Anatomy and Legal Medicine, School of Medicine of the Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Sammy Elmariah
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nayana F A Gomes
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Laboratory of Molecular Pathology, Department of Pathological Anatomy and Legal Medicine, School of Medicine of the Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana R Soares
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - William A M Esteves
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Xin Zeng
- Cardiac Ultrasound Lab, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jacob P Dal-Bianco
- Cardiac Ultrasound Lab, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Livia S A Passos
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, and National Institutes for Science and Technology, Belo Horizonte, Minas Gerais, Brazil; The Center for Excellence in Vascular Biology, Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Luiz G Passaglia
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Victor T Ribeiro
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Cláudio L Gelape
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Paulo H N Costa
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lucas Lodi-Junqueira
- Hospital das Clinicas, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Walderez Dutra
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, and National Institutes for Science and Technology, Belo Horizonte, Minas Gerais, Brazil
| | - Timothy C Tan
- Department of Cardiology, Blacktown Hospital, University of Western Sydney, New South Wales, Australia
| | - Elena Aikawa
- The Center for Excellence in Vascular Biology, Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Judy Hung
- Cardiac Ultrasound Lab, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Namazi F, Vo NM, Delgado V. Imaging of the mitral valve: role of echocardiography, cardiac magnetic resonance, and cardiac computed tomography. Curr Opin Cardiol 2020; 35:435-444. [DOI: 10.1097/hco.0000000000000779] [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] [Indexed: 11/25/2022]
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Illmann CF, Ghadiry-Tavi R, Hosking M, Harris KC. Utility of 3D printed cardiac models in congenital heart disease: a scoping review. Heart 2020; 106:1631-1637. [PMID: 32727918 DOI: 10.1136/heartjnl-2020-316943] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/27/2020] [Accepted: 05/26/2020] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE Three-dimensional printing (3DP) is a novel technology with applications in healthcare, particularly for congenital heart disease (CHD). We sought to explore the spectrum of use of 3D printed CHD models (3D-CM) and identify knowledge gaps within the published body of literature to guide future research. METHODS We conducted a scoping review targeting published literature on the use of 3D-CMs. The databases of MEDLINE, EMBASE and Web of Science were searched from their inception until 19 July 2019. Inclusion criteria were primary research; studies reporting use of 3D-CMs; and human subjects. Exclusion criteria were studies where 3D-CMs were generated for proof of concept but not used; and studies focused on bioprinting or computational 3D-CMs. Studies were assessed for inclusion and data were extracted from eligible articles in duplicate. RESULTS The search returned 648 results. Following assessment, 79 articles were included in the final qualitative synthesis. The majority (66%) of studies are case reports or series. 15% reported use of a control group. Three main areas of utilisation are for (1) surgical and interventional cardiology procedural planning (n=62), (2) simulation (n=25), and (3) education for medical personnel or patients and their families (n=17). Multiple studies used 3D-CMs for more than one of these areas. CONCLUSIONS 3DP for CHD is a new technology with an evolving literature base. Most of the published literature are experiential reports as opposed to manuscripts on scientifically robust studies. Our study has identified gaps in the literature and addressed priority areas for future research.
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Affiliation(s)
- Caroline F Illmann
- Children's Heart Centre, BC Children's Hospital, Vancouver, British Columbia, Canada.,Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Martin Hosking
- Children's Heart Centre, BC Children's Hospital, Vancouver, British Columbia, Canada.,Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kevin C Harris
- Children's Heart Centre, BC Children's Hospital, Vancouver, British Columbia, Canada .,Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
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A fully automated software platform for structural mitral valve analysis. Eur Radiol 2020; 30:6528-6536. [PMID: 32617689 DOI: 10.1007/s00330-020-06983-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 04/10/2020] [Accepted: 05/26/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To evaluate a novel fully automated mitral valve analysis software platform for cardiac computer tomography angiography (CCTA)-based structural heart therapy procedure planning. METHODS The study included 52 patients (25 women; mean age, 66.9 ± 12.4 years) who had undergone CCTA prior to transcatheter mitral valve replacement (TMVR) or surgical mitral valve intervention (replacement or repair). Therapeutically relevant mitral valve annulus parameters (projected area, circumference, trigone-to-trigone (T-T) distance, anterior-posterior (AP) diameter, and anterolateral-posteromedial (AL-PM) diameter) were measured. Results of the fully automated mitral valve analysis software platform with and without manual adjustments were compared with the reference standard of a user-driven measurement program (3mensio, Pie Medical Imaging). Measurements were compared between the fully automated software, both with and without manual adjustment, and the user-driven program using intraclass correlation coefficients (ICC). A secondary analysis included the time to obtain all measurements. RESULTS Fully automated measurements showed a good to excellent agreement (circumference, ICC = 0.70; projected area, ICC = 0.81; T-T distance, ICC = 0.64; AP, ICC = 0.62; and AL-PM diameter, ICC = 0.78) compared with the user-driven analysis. There was an excellent agreement between fully automated measurement with manual adjustments and user-driven analysis regarding circumference (ICC = 0.91), projected area (ICC = 0.93), T-T distance (ICC = 0.80), AP (ICC = 0.78), and AL-PM diameter (ICC = 0.79). The time required for mitral valve analysis was significantly lower using the fully automated software with manual adjustments compared with the standard assessment (134.4 ± 36.4 s vs. 304.3 ± 77.7 s) (p < 0.01). CONCLUSION The fully automated mitral valve analysis software, when combined with manual adjustments, demonstrated a strong correlation compared with the user-driven software while reducing the total time required for measurement. KEY POINTS • The novel software platform allows for a fully automated analysis of mitral valve structures. • An excellent agreement was found between the fully automated measurement with manual adjustments and the user-driven analysis. • The software showed quicker measurement time compared with the standard analysis of the mitral valve.
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Mitral valve regurgitation: a disease with a wide spectrum of therapeutic options. Nat Rev Cardiol 2020; 17:807-827. [DOI: 10.1038/s41569-020-0395-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/12/2020] [Indexed: 12/30/2022]
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Ruf TF, Kreidel F, Tamm AR, Geyer M, Hahad O, Zirbs JC, Schwidtal BL, Beiras-Fernandez A, Witte KK, Münzel T, von Bardeleben RS. Transcatheter indirect mitral annuloplasty induces annular and left atrial remodelling in secondary mitral regurgitation. ESC Heart Fail 2020; 7:1400-1408. [PMID: 32501644 PMCID: PMC7373883 DOI: 10.1002/ehf2.12710] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/14/2022] Open
Abstract
Aims Mitral annuloplasty using the Carillon Mitral Contour System (CMCS) reduces secondary mitral regurgitation (SMR) and leads to reverse left ventricular remodelling. The aim of this study was to evaluate the effect of the CMCS on the mitral valve annulus (MA) and left atrial volume (LAV). Methods and results We retrospectively evaluated the data of all patients treated with the CMCS at our centre. Using transthoracic echocardiography, MA diameters were assessed by measuring the anterolateral to posteromedial extend (ALPM) and the anterior to posterior (AP) dimensions, respectively. Also, LAV and left ventricular end‐diastolic volume (LVEDV) were assessed. Patients were examined at three time points: baseline, at 20–60 days (30dFUP), and at 9–15 months (1yFUP), using paired analysis. From July 2014 until March 2019, 75 cases of severe SMR were treated using CMCS. Cases in which other devices were used in combination (COMBO therapy, n = 35) or in which the device could not be implanted (implant failure, n = 3) were excluded, leaving 37 patients in the present analysis. Analysis at 30dFUP showed a significant reduction of 16% in the mean ALPM diameter (7.27 ± 5.40 mm) and 15% in the AP diameter (6.57 ± 5.33 mm). Analysis of LAV also showed a significant reduction of 21% (36.61 ± 82.67 mL), with no significant change in LVEDV. At 1yFUP, the reduction of both the mean ALPM diameter of 14% (6.24 ± 5.70 mm) and the mean AP diameter of 12% (5.46 ± 4.99 mm) remained significant and stable. The reduction in LAV was also maintained at 23% (37.03 ± 56.91 mL). LAV index was significantly reduced by 17% at 30dFUP (15.44 ± 40.98 mL/m2) and by 13% at 1yFUP (11.56 ± 31.87 mL/m2), respectively. LVEDV index showed no significant change at 30dFUP and a non‐significant 10% reduction at 1yFUP (17.75 ± 58.79 mL/m2). Conclusions The CMCS successfully treats symptomatic SMR with a stable reduction of not only the AP diameter of the MA, but the current study also demonstrates an additional reduction of the ALPM dimension at both 30dFUP and 1yFUP. We have also shown for the first time that LAV and LAV index are significantly reduced at both 30dFUP and 1yFUP and a non‐significant positive remodelling of the LVEDV. This positive left atrial remodelling has not been looked for and demonstrated in earlier randomized studies of CMCS.
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Affiliation(s)
- Tobias Friedrich Ruf
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Felix Kreidel
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Alexander Robert Tamm
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Martin Geyer
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Omar Hahad
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Julia Claudia Zirbs
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Ben Luca Schwidtal
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Andres Beiras-Fernandez
- Heart Valve Center Mainz, Department of Heart and Vascular Surgery, University Medical Center Mainz, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Klaus K Witte
- Leeds Institute for Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Thomas Münzel
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Ralph Stephan von Bardeleben
- Heart Valve Center Mainz, Center for Cardiology I, University Medical Center Mainz, Johannes Gutenberg University Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
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Oliveira D, Srinivasan J, Espino D, Buchan K, Dawson D, Shepherd D. Geometric description for the anatomy of the mitral valve: A review. J Anat 2020; 237:209-224. [PMID: 32242929 DOI: 10.1111/joa.13196] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 12/16/2022] Open
Abstract
The mitral valve is a complex anatomical structure whose physiological functioning relies on the biomechanical properties and structural integrity of its components. Their compromise can lead to mitral valve dysfunction, associated with morbidity and mortality. Therefore, a review on the morphometry of the mitral valve is crucial, more specifically on the importance of valve dimensions and shape for its function. This review initially provides a brief background on the anatomy and physiology of the mitral valve, followed by an analysis of the morphological information available. A characterisation of mathematical descriptions of several parts of the valve is performed and the impact of different dimensions and shape changes in disease is then outlined. Finally, a section regarding future directions and recommendations for the use of morphometric information in clinical analysis of the mitral valve is presented.
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Affiliation(s)
- Diana Oliveira
- Department of Mechanical Engineering, University of Birmingham, Birmingham, UK
| | | | - Daniel Espino
- Department of Mechanical Engineering, University of Birmingham, Birmingham, UK
| | - Keith Buchan
- Department of Cardiothoracic Surgery, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Dana Dawson
- Cardiology Research Facility, University of Aberdeen and Aberdeen Royal Infirmary, Aberdeen, UK
| | - Duncan Shepherd
- Department of Mechanical Engineering, University of Birmingham, Birmingham, UK
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Kagiyama N, Mondillo S, Yoshida K, Mandoli GE, Cameli M. Subtypes of Atrial Functional Mitral Regurgitation. JACC Cardiovasc Imaging 2020; 13:820-835. [DOI: 10.1016/j.jcmg.2019.01.040] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 10/26/2022]
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Functional Regurgitation of Atrioventricular Valves and Atrial Fibrillation: An Elusive Pathophysiological Link Deserving Further Attention. J Am Soc Echocardiogr 2020; 33:42-53. [DOI: 10.1016/j.echo.2019.08.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 08/23/2019] [Accepted: 08/27/2019] [Indexed: 12/15/2022]
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Goyal G, Abbas SH, Diamond MA, Pulinthanathu R. Fatty Infiltration of Mitral Valve: A Rare Case Report and Review of Literature. Cureus 2019; 11:e6144. [PMID: 31840011 PMCID: PMC6910616 DOI: 10.7759/cureus.6144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Adipose tissue is a normal anatomical finding in the heart but fat infiltration in cardiac valves is extremely rare with very few cases reported in the literature. We report a case of fatty infiltration in a mitral valve replaced for mitral valve prolapse causing severe mitral regurgitation in a 65-year-old male who presented with shortness of breath and upper respiratory tract infection. The histopathological examination of the mitral valve revealed sheets of mature adipocytes in the spongiosa layer leading to replacement of collagen and elastic fibers. The presence of adipocytes in the prolapsed valve could be considered to arise from the proliferation of pluripotent valvular interstitial cells. Herein, we have reviewed the previously reported cases of fatty infiltration in the mitral valve and discussed the pathogenesis and effect on valvular function.
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Affiliation(s)
- Geetika Goyal
- Pathology, Saint Barnabas Medical Center, Robert Wood Johnson Barnabas Health, Livingston, USA
| | - Syed H Abbas
- Pathology, Monmouth Medical Center, Long Branch, USA
| | - Michael A Diamond
- Pathology, Saint Barnabas Medical Center, Robert Wood Johnson Barnabas Health, Livingston, USA
| | - Rajiv Pulinthanathu
- Pathology, Saint Barnabas Medical Center, Robert Wood Johnson Barnabas Health, Livingston, USA
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Jain CC, Newman DB, Geske JB. Mitral Valve Disease in Hypertrophic Cardiomyopathy:Evaluation and Management. Curr Cardiol Rep 2019; 21:136. [DOI: 10.1007/s11886-019-1231-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Abstract
Functional mitral regurgitation (FMR) in the setting of left ventricular (LV) dysfunction and heart failure portends a poor prognosis. Guideline-directed medical therapy remains the cornerstone of initial treatment, with emphasis placed on treatment of the underlying LV dysfunction, as FMR is a secondary phenomenon and a disease due to LV remodeling. Surgical correction of FMR is controversial because it typically does not address the underlying mechanism and etiology of the condition. However, new, minimally invasive transcatheter therapies, in particular the MitraClip system, have shown promise in the treatment of FMR in selected patients. This review will summarize the pathophysiology underlying FMR, the prognosis of patients with heart failure and FMR, and the various medical and procedural treatment options currently available and under investigation.
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