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Hagendorff A, Helfen A, Brandt R, Knebel F, Altiok E, Ewers A, Haghi D, Knierim J, Merke N, Romero-Dorta E, Ruf T, Sinning C, Stöbe S, Ewen S. Expert proposal to analyze the combination of aortic and mitral regurgitation in multiple valvular heart disease by comprehensive echocardiography. Clin Res Cardiol 2024; 113:393-411. [PMID: 37212864 PMCID: PMC10881739 DOI: 10.1007/s00392-023-02227-y] [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: 03/23/2023] [Accepted: 05/08/2023] [Indexed: 05/23/2023]
Abstract
The assessment of valvular pathologies in multiple valvular heart disease by echocardiography remains challenging. Data on echocardiographic assessment-especially in patients with combined aortic and mitral regurgitation-are rare in the literature. The proposed integrative approach using semi-quantitative parameters to grade the severity of regurgitation often yields inconsistent findings and results in misinterpretation. Therefore, this proposal aims to focus on a practical systematic echocardiographic analysis to understand the pathophysiology and hemodynamics in patients with combined aortic and mitral regurgitation. The quantitative approach of grading the regurgitant severity of each compound might be helpful in elucidating the scenario in combined aortic and mitral regurgitation. To this end, both the individual regurgitant fraction of each valve and the total regurgitant fraction of both valves must be determined. This work also outlines the methodological issues and limitations of the quantitative approach by echocardiography. Finally, we present a proposal that enables verifiable assessment of regurgitant fractions. The overall interpretation of echocardiographic results includes the symptomatology of patients with combined aortic and mitral regurgitation and the individual treatment options with respect to their individual risk. In summary, a reproducible, verifiable, and transparent in-depth echocardiographic investigation might ensure consistent hemodynamic plausibility of the quantitative results in patients with combined aortic and mitral regurgitation.
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Affiliation(s)
- Andreas Hagendorff
- Department of Cardiology, University of Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany.
| | - A Helfen
- Department of Cardiology, Kath. St. Paulus Gesellschaft, St-Marien-Hospital Lunen, Altstadtstrasse 23, 44534, Lünen, Germany
| | - R Brandt
- Department of Cardiology, Kerckhoff Heart Center, Benekestr. 2‑8, 61231, Bad Nauheim, Germany
| | - F Knebel
- Klinik Für Innere Medizin II, Kardiologie, Sana Klinikum Lichtenberg, Fanningerstrasse 32, 10365, Berlin, Germany
- Department of Cardiology, Angiology and Intensive Care Medicine, University of Berlin, German Heart Center Charité Berlin, Campus Mitte, Chariteplatz 1, 10117, Berlin, Germany
| | - E Altiok
- Department of Cardiology, University of Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - A Ewers
- Department of Cardiology and Angiology, BG University Hospital Bergmannsheil, de La Camp-Platz 1, 44789, Bochum, Germany
| | - D Haghi
- Kardiologische Praxisklinik Ludwigshafen-Akademische Lehrpraxis der Universitat Mannheim-Ludwig-Guttmann, Strasse 11, 67071, Ludwigshafen, Germany
| | - J Knierim
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Charité Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Paulinenkrankenhaus Berlin, Klinik Für Innere Medizin Und Kardiologie, Dickensweg 25‑39, 14055, Berlin, Germany
| | - N Merke
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Charité Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - E Romero-Dorta
- Department of Cardiology, Angiology and Intensive Care Medicine, University of Berlin, German Heart Center Charité Berlin, Campus Mitte, Chariteplatz 1, 10117, Berlin, Germany
| | - T Ruf
- Department of Cardiology, Center of Cardiology, Heart Valve Center, University Medical Center Mainz, University of Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - C Sinning
- Department of Cardiology, University Heart and Vascular Center Hamburg, German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lubeck, Martinistrasse 52, 20251, Hamburg, Germany
| | - S Stöbe
- Department of Cardiology, University of Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany
| | - S Ewen
- Zentrale Notaufnahme and Klinik Für Innere Medizin III, Kardiologie, Angiologie Und Internistische Intensivmedizin, Universitätsklinikum Des Saarlandes, Homburg, Germany
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2
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Altes A, Vermes E, Levy F, Vancraeynest D, Pasquet A, Vincentelli A, Gerber BL, Tribouilloy C, Maréchaux S. Quantification of primary mitral regurgitation by echocardiography: A practical appraisal. Front Cardiovasc Med 2023; 10:1107724. [PMID: 36970355 PMCID: PMC10036770 DOI: 10.3389/fcvm.2023.1107724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/20/2023] [Indexed: 03/12/2023] Open
Abstract
The accurate quantification of primary mitral regurgitation (MR) and its consequences on cardiac remodeling is of paramount importance to determine the best timing for surgery in these patients. The recommended echocardiographic grading of primary MR severity relies on an integrated multiparametric approach. It is expected that the large number of echocardiographic parameters collected would offer the possibility to check the measured values regarding their congruence in order to conclude reliably on MR severity. However, the use of multiple parameters to grade MR can result in potential discrepancies between one or more of them. Importantly, many factors beyond MR severity impact the values obtained for these parameters including technical settings, anatomic and hemodynamic considerations, patient's characteristics and echocardiographer' skills. Hence, clinicians involved in valvular diseases should be well aware of the respective strengths and pitfalls of each of MR grading methods by echocardiography. Recent literature highlighted the need for a reappraisal of the severity of primary MR from a hemodynamic perspective. The estimation of MR regurgitation fraction by indirect quantitative methods, whenever possible, should be central when grading the severity of these patients. The assessment of the MR effective regurgitant orifice area by the proximal flow convergence method should be used in a semi-quantitative manner. Furthermore, it is crucial to acknowledge specific clinical situations in MR at risk of misevaluation when grading severity such as late-systolic MR, bi-leaflet prolapse with multiple jets or extensive leak, wall-constrained eccentric jet or in older patients with complex MR mechanism. Finally, it is debatable whether the 4-grades classification of MR severity would be still relevant nowadays, since the indication for mitral valve (MV) surgery is discussed in clinical practice for patients with 3+ and 4+ primary MR based on symptoms, specific markers of adverse outcome and MV repair probability. Primary MR grading should be seen as a continuum integrating both quantification of MR and its consequences, even for patients with presumed “moderate” MR.
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Affiliation(s)
- Alexandre Altes
- GCS-Groupement des Hôpitaux de l’Institut Catholique de Lille/Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
- Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Pôle de Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | | | - Franck Levy
- Department of Cardiology, Center Cardio-Thoracique de Monaco, Monaco, Monaco
| | - David Vancraeynest
- Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Pôle de Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - Agnès Pasquet
- Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Pôle de Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - André Vincentelli
- Cardiac Surgery Department, Centre Hospitalier Régional et Universitaire de Lille, Lille, France
| | - Bernhard L. Gerber
- Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Pôle de Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | | | - Sylvestre Maréchaux
- GCS-Groupement des Hôpitaux de l’Institut Catholique de Lille/Lille Catholic Hospitals, Heart Valve Center, Cardiology Department, ETHICS EA 7446, Lille Catholic University, Lille, France
- Correspondence: Sylvestre Maréchaux
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3
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Lavall D, Bruns J, Stegmann T, Hagendorff A, Stöbe S, Laufs U. Long-term clinical and haemodynamic results after transcatheter annuloplasty for secondary mitral regurgitation. ESC Heart Fail 2021; 8:2448-2457. [PMID: 33939295 PMCID: PMC8318490 DOI: 10.1002/ehf2.13383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/25/2021] [Accepted: 04/12/2021] [Indexed: 01/15/2023] Open
Abstract
AIMS The study sought to investigate the long-term outcome after transcatheter mitral valve annuloplasty for secondary mitral regurgitation (MR). METHODS AND RESULTS Consecutive patients with symptomatic secondary MR undergoing transcatheter mitral valve annuloplasty with the Carillon device at Leipzig University Hospital between 2012 and 2018 were studied prospectively. Left ventricular (LV) function and MR severity were quantified by standardized echocardiography. 33 patients were included. Mean age was 75 ± 10 years, and 20 patients were women. A Society of Thoracic Surgeons score of 8.1 ± 7.2% indicated high-risk status. In 24 patients, MR resulted from LV remodelling and dysfunction, eight suffered from left atrial dilatation, and one patient had MR due to combined primary and secondary aetiology. LV ejection fraction at baseline was (median) 38% [inter-quartile range (IQR) 30-49%]. During the mean follow-up time of 45 ± 20 months, 17 patients died, two patients withdraw consent, and four patients were lost. Of the remaining patients, four were hospitalized for decompensated heart failure. Two of these patients underwent additional transcatheter edge-to-edge mitral valve repair. At follow-up, New York Heart Association (NYHA) functional class improved from 95% in Class III/IV at baseline to 70% in Class I/II with no patients in NYHA Class IV (P < 0.0001). Mitral regurgitant volume was reduced from 27 mL (IQR 25-42 mL) to 8 mL (IQR 3-17 mL) (P = 0.018) and regurgitant fraction from 42% (IQR 34-54%) to 11% (IQR 8-24%) (P = 0.014). LV end-diastolic volume index [92 mL/m2 (IQR 74-107 mL/m2 ) vs. 67 mL/m2 (IQR 46-101 mL/m2 ), P = 0.065] and end-systolic volume index [50 mL/m2 (IQR 44-69 mL/m2 ) vs. 32 mL/m2 (IQR 20-53 mL/m2 ), P = 0.037] decreased. Total stroke volume remained unchanged [38 mL/m2 (IQR 33-43 mL/m2 ) vs. 33 mL/m2 (IQR 26-44 mL/m2 ), P = 0.695], while LV ejection fraction increased [43% (IQR 35-49%) vs. 54% (IQR 46-57%), P = 0.014]. Forward stroke volume, heart rate, and forward cardiac output were not significantly altered. CONCLUSIONS Among high-risk patients undergoing transcatheter mitral valve annuloplasty for symptomatic secondary MR, mortality was ~50% at 4 years. In the surviving patients, reduced MR severity was associated with reduced NYHA functional class, reverse LV remodelling, and improved LV function.
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Affiliation(s)
- Daniel Lavall
- Klinik und Poliklinik für KardiologieUniversitätsklinikum LeipzigLiebigstraße 20Leipzig04103Germany
| | - Julius Bruns
- Klinik und Poliklinik für KardiologieUniversitätsklinikum LeipzigLiebigstraße 20Leipzig04103Germany
| | - Tina Stegmann
- Klinik und Poliklinik für KardiologieUniversitätsklinikum LeipzigLiebigstraße 20Leipzig04103Germany
| | - Andreas Hagendorff
- Klinik und Poliklinik für KardiologieUniversitätsklinikum LeipzigLiebigstraße 20Leipzig04103Germany
| | - Stephan Stöbe
- Klinik und Poliklinik für KardiologieUniversitätsklinikum LeipzigLiebigstraße 20Leipzig04103Germany
| | - Ulrich Laufs
- Klinik und Poliklinik für KardiologieUniversitätsklinikum LeipzigLiebigstraße 20Leipzig04103Germany
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Hagendorff A, Knebel F, Helfen A, Stöbe S, Haghi D, Ruf T, Lavall D, Knierim J, Altiok E, Brandt R, Merke N, Ewen S. Echocardiographic assessment of mitral regurgitation: discussion of practical and methodologic aspects of severity quantification to improve diagnostic conclusiveness. Clin Res Cardiol 2021; 110:1704-1733. [PMID: 33839933 PMCID: PMC8563569 DOI: 10.1007/s00392-021-01841-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 03/08/2021] [Indexed: 12/28/2022]
Abstract
The echocardiographic assessment of mitral valve regurgitation (MR) by characterizing specific morphological features and grading its severity is still challenging. Analysis of MR etiology is necessary to clarify the underlying pathological mechanism of the valvular defect. Severity of mitral regurgitation is often quantified based on semi-quantitative parameters. However, incongruent findings and/or interpretations of regurgitation severity are frequently observed. This proposal seeks to offer practical support to overcome these obstacles by offering a standardized workflow, an easy means to identify non-severe mitral regurgitation, and by focusing on the quantitative approach with calculation of the individual regurgitant fraction. This work also indicates main methodological problems of semi-quantitative parameters when evaluating MR severity and offers appropriateness criteria for their use. It addresses the diagnostic importance of left-ventricular wall thickness, left-ventricular and left atrial volumes in relation to disease progression, and disease-related complaints to improve interpretation of echocardiographic findings. Finally, it highlights the conditions influencing the MR dynamics during echocardiographic examination. These considerations allow a reproducible, verifiable, and transparent in-depth echocardiographic evaluation of MR patients ensuring consistent haemodynamic plausibility of echocardiographic results.
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Affiliation(s)
- Andreas Hagendorff
- Department of Cardiology, Klinik und Poliklinik für Kardiologie, University of Leipzig, Liebigstraße 20, 04103, Leipzig, Germany.
| | - Fabian Knebel
- Department of Cardiology, University of Berlin, Charité Universitätsmedizin Berlin, Campus Mitte, Medizinische Klinik mit Schwerpunkt Kardiologie und Angiologie, Charitéplatz 1, 10117, Berlin, Germany
| | - Andreas Helfen
- Department of Cardiology, Katholisches Klinikum Lünen Werne GmbH, St-Marien-Hospital Lünen, Altstadtstrasse 23, 44534, Lünen, Germany
| | - Stephan Stöbe
- Department of Cardiology, Klinik und Poliklinik für Kardiologie, University of Leipzig, Liebigstraße 20, 04103, Leipzig, Germany
| | - Dariush Haghi
- Kardiologische Praxisklinik Ludwigshafen, Akademische Lehrpraxis der Universität Mannheim, Ludwig-Guttmann-Strasse 11, 67071, Ludwigshafen, Germany
| | - Tobias Ruf
- Department of Cardiology, Center of Cardiology, Heart Valve Center, University Medical Center Mainz, University of Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Daniel Lavall
- Department of Cardiology, Klinik und Poliklinik für Kardiologie, University of Leipzig, Liebigstraße 20, 04103, Leipzig, Germany
| | - Jan Knierim
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Augustenburger Platz 1, Berlin, 13353, Germany
| | - Ertunc Altiok
- Department of Cardiology, University of Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Roland Brandt
- Department of Cardiology, Kerckhoff Heart Center, Benekestr. 2-8, 61231, Bad Nauheim, Germany
| | - Nicolas Merke
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Augustenburger Platz 1, Berlin, 13353, Germany
| | - Sebastian Ewen
- Klinik für Innere Medizin III - Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Kirrberger Str, IMED, 66421, Homburg, Germany
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5
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Straw S, Schlosshan D, Witte KK. Secondary mitral regurgitation: reducing the leak, expanding the science. ESC Heart Fail 2020; 7:3281-3284. [PMID: 33016650 PMCID: PMC7754747 DOI: 10.1002/ehf2.13051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/22/2020] [Indexed: 11/16/2022] Open
Affiliation(s)
- Sam Straw
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Dominik Schlosshan
- Leeds Valve Service, Department of Cardiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Klaus K Witte
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
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Hagendorff A, Knebel F, Helfen A, Stöbe S, Doenst T, Falk V. Disproportionate mitral regurgitation: another myth? A critical appraisal of echocardiographic assessment of functional mitral regurgitation. Int J Cardiovasc Imaging 2020; 37:183-196. [PMID: 32851501 PMCID: PMC7878255 DOI: 10.1007/s10554-020-01975-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/17/2020] [Indexed: 12/12/2022]
Abstract
The contradictory findings of recent prospective randomized controlled trials assessing the impact of percutaneous edge-to-edge repair in patients with functional or secondary mitral regurgitation have triggered a lively discussion about an “integrated” echocardiographic approach for grading severity of mitral regurgitation. In the MITRA-FR trial, the COAPT trial and the REDUCE-FMR trial echocardiographic assessment of the severity of mitral regurgitation was consistent with principles set forth by the current echocardiographic guidelines and analysed in its best settings by expert international leaders in the field of echocardiography. However, serious inconsistencies appeared in the presented echocardiographic assessments regarding cardiac output and regurgitant fraction. A new term “disproportionate functional mitral regurgitation” was introduced describing a situation where the increase of effective regurgitant orifice area exceeds the enlargement of the left ventricular end-diastolic volumes. Further discussion resulted in the idea of a “new conceptional framework” for distinguishing “proportionate” and “disproportionate” functional mitral regurgitation. The aim of this viewpoint is to dispute conclusions based on the term “disproportionate” mitral regurgitation. A “disproportionate” FMR is highly questionable because disproportionateness of flow in communication vessels cannot exist. In addition, a proposal of echocardiographic assessment based on a conventional comprehensive transthoracic echocardiography is given to avoid obvious hemodynamic contradictions.
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Affiliation(s)
- Andreas Hagendorff
- Department of Cardiology, University of Leipzig, Leipzig, Germany.
- Department of Cardiology, University Hospital Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany.
| | - Fabian Knebel
- Department of Cardiology, University of Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Speaker of the Working Group "Cardiovascular Ultrasound" of the German Society of Cardiology, Düsseldorf, Germany
| | - Andreas Helfen
- Department of Cardiology, St. Marien Hospital Lünen, Lünen, Germany
- Co-Speaker of the Working Group "Cardiovascular Ultrasound" of the German Society of Cardiology, Düsseldorf, Germany
| | - Stephan Stöbe
- Department of Cardiology, University of Leipzig, Leipzig, Germany
| | - Torsten Doenst
- Department of Cardiothoracic Surgery, Jena University Hospital, Friedrich Schiller University of Jena, Jena, Germany
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, University of Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
- Department of Health Science and Technology, Swiss Federal Institute of Technology, Zurich, Switzerland
- German Center of Cardiovascular Research, Partner Site Berlin, Berlin, Germany
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7
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Stöbe S, Kreyer K, Jurisch D, Pfeiffer D, Lavall D, Farese G, Laufs U, Hagendorff A. Echocardiographic analysis of acute effects of percutaneous mitral annuloplasty on severity of secondary mitral regurgitation. ESC Heart Fail 2020; 7:1645-1652. [PMID: 32358886 PMCID: PMC7373905 DOI: 10.1002/ehf2.12719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 02/27/2020] [Accepted: 03/31/2020] [Indexed: 12/28/2022] Open
Abstract
AIMS Percutaneous mitral annuloplasty (PMA) represents a new treatment option for secondary mitral regurgitation (SMR) being associated with higher morbidity and mortality. The present study was aimed to evaluate whether or not acute effects on SMR severity can quantitatively be assessed after PMA. METHODS AND RESULTS PMA was performed in 30 patients (mean age 76 ± 9; 37% males) with moderate (n = 14) or severe (n = 16) SMR. Vena contracta (VC), left ventricular (LV) velocity-time-integral ratio (VTIMV/LVOT ), effective regurgitant orifice area (EROA) by two-dimensional proximal isovelocity surface area (PISA), regurgitant volume (RVolPISA ) and regurgitant fraction (RFPISA ) by PISA, RVolvolume and RFvolume by LV volume analyses, and parameters describing LV morphology, function, and cardiac performance were assessed by transthoracic echocardiography prior to and after PMA. According to RFPISA /RFvolume , 14 patients showed mild, 15 moderate, and 1 severe SMR after PMA. Mean RF, RVol, EROA, VC, and VTIMV/LVOT were lower directly after PMA (RFPISA : 49% ± 11 vs. 34% ± 13, P < 0.001; RFvolume : 46% ± 10 vs. 34% ± 13, P < 0.001; RVolPISA : 33 mL ± 13 vs. 25 mL ± 12, P < 0.001; RVolvolume : 28 mL ± 17 vs. 20 mL ± 14, P < 0.05; EROAPISA : 0.24 cm2 ± 0.1 vs. 0.19 cm2 ± 0.1, P < 0.05; VC: 5.2 ± 0.1 vs. 4.1 ± 0.2, P < 0.001; VTIMV/LVOT : 1.9 ± 0.4 vs. 1.6 ± 0.5, P < 0.05). Parameters of LV morphology, function, and cardiac performance did not change directly after PMA. CONCLUSIONS PMA leads to a reduction of MR severity in >80% of SMR patients. Acute effects of PMA can quantitatively be assessed by transthoracic echocardiography.
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Affiliation(s)
- Stephan Stöbe
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
| | - Kristin Kreyer
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
| | - Daniel Jurisch
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
| | - Dietrich Pfeiffer
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
| | - Daniel Lavall
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
| | - Gerardo Farese
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
| | - Ulrich Laufs
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
| | - Andreas Hagendorff
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzsig, Liebigstr. 20, Leipzig, 04103, Germany
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