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Alhourani N, Wolfes J, Könemann H, Ellermann C, Frommeyer G, Güner F, Lange PS, Reinke F, Köbe J, Eckardt L. Relevance of mexiletine in the era of evolving antiarrhythmic therapy of ventricular arrhythmias. Clin Res Cardiol 2024; 113:791-800. [PMID: 38353682 PMCID: PMC11108884 DOI: 10.1007/s00392-024-02383-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/19/2024] [Indexed: 05/22/2024]
Abstract
Despite impressive developments in the field of ventricular arrhythmias, there is still a relevant number of patients with ventricular arrhythmias who require antiarrhythmic drug therapy and may, e.g., in otherwise drug and/or ablation refractory situations, benefit from agents known for decades, such as mexiletine. Through its capability of blocking fast sodium channels in cardiomyocytes, it has played a minor to moderate antiarrhythmic role throughout the recent decades. Nevertheless, certain patients with structural heart disease suffering from drug-refractory, i.e., mainly amiodarone refractory ventricular arrhythmias, as well as those with selected forms of congenital long QT syndrome (LQTS) may nowadays still benefit from mexiletine. Here, we outline mexiletine's cellular and clinical electrophysiological properties. In addition, the application of mexiletine may be accompanied by various potential side effects, e.g., nausea and tremor, and is limited by several drug-drug interactions. Thus, we shed light on the current therapeutic role of mexiletine for therapy of ventricular arrhythmias and discuss clinically relevant aspects of its indications based on current evidence.
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Affiliation(s)
- Nawar Alhourani
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany.
| | - Julian Wolfes
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Hilke Könemann
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Christian Ellermann
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Gerrit Frommeyer
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Fatih Güner
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Philipp Sebastian Lange
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Florian Reinke
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Julia Köbe
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
| | - Lars Eckardt
- Department of Cardiology II: Electrophysiology, University Hospital Münster, Münster, Germany
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Stolz L, Doldi PM, Sannino A, Hausleiter J, Grayburn PA. The Evolving Concept of Secondary Mitral Regurgitation Phenotypes: Lessons From the M-TEER Trials. JACC Cardiovasc Imaging 2024; 17:659-668. [PMID: 38551534 DOI: 10.1016/j.jcmg.2024.01.012] [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: 09/11/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 06/07/2024]
Abstract
Conflicting results from 2 randomized clinical trials of transcatheter mitral valve edge-to-edge repair in secondary mitral regurgitation (SMR) have led to the recognition that SMR is a heterogeneous disease entity presenting with different functional and morphological phenotypes. This review summarizes the current knowledge on SMR caused primarily by atrial secondary mitral regurgitation (aSMR) and ventricular SMR pathology. Although aSMR is generally characterized by severe left atrial enlargement in the setting of preserved left ventricular anatomy and function, different patterns of mitral annular distortion cause different phenotypes of aSMR. In ventricular SMR, the relation of SMR severity to left ventricular dilation as well as the degree of pulmonary hypertension and right ventricular dysfunction are important phenotypic characteristics, which are key for a better understanding of prognosis and treatment response.
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Affiliation(s)
- Lukas Stolz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.
| | - Philipp M Doldi
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany. https://twitter.com/DoldiP
| | - Anna Sannino
- Division of Cardiology, Department of Internal Medicine, Baylor Scott and White The Heart Hospital, Plano, Texas, USA; Department of Advanced Biomedical Sciences, Division of Cardiology, Federico II University, Naples, Italy. https://twitter.com/AnnaSannino1985
| | - Jörg Hausleiter
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany. https://twitter.com/j_hausleiter
| | - Paul A Grayburn
- Division of Cardiology, Department of Internal Medicine, Baylor Scott and White The Heart Hospital, Plano, Texas, USA.
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3
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Stolz L, Braun D, Higuchi S, Orban M, Doldi PM, Stocker TJ, Weckbach LT, Wild MG, Hagl C, Massberg S, Näbauer M, Hausleiter J, Orban M. Transcatheter edge-to-edge mitral valve repair in mitral regurgitation: current status and future prospects. Expert Rev Med Devices 2023; 20:99-108. [PMID: 35791872 DOI: 10.1080/17434440.2022.2098013] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Mitral regurgitation (MR) is associated with substantial morbidity and mortality. Within the past 15 years, mitral valve edge-to-edge repair (M-TEER) has developed from an experimental approach to a guideline-recommended, safe, and effective treatment option for patients with severe primary or secondary mitral regurgitation. AREAS COVERED This review covered relevant publications of M-TEER and summarizes the development of M-TEER devices within the last 15 years. It outlines anatomical challenges which drove the evolution of M-TEER devices, provides an overview about the current state of clinical application and research, and offers an outlook into the future of transcatheter mitral valve treatment. EXPERT OPINION The development and refinement of new M-TEER device generations offer the possibility to treat a wide range of mitral valve anatomies. Choosing the best device for the individual anatomic properties of the patients and considering comorbidities is the key to maximized MR reduction, minimalized complication rates, and thus optimized postinterventional prognosis. Independent from prognostic implications, quality of life has become an important patient-centered outcome that can be improved by M-TEER in virtually all patients treated.
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Affiliation(s)
- Lukas Stolz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany
| | - Daniel Braun
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany
| | - Satoshi Higuchi
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany
| | - Martin Orban
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Philipp M Doldi
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Thomas J Stocker
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Ludwig T Weckbach
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany
| | - Mirjam G Wild
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany
| | - Christian Hagl
- German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany.,Herzchirurgische Klinik und Poliklinik, Klinikum der Universität München, Munich, Germany
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Michael Näbauer
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Jörg Hausleiter
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Mathias Orban
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
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Hausleiter J, Stocker TJ, Adamo M, Karam N, Swaans MJ, Praz F. Mitral valve transcatheter edge-to-edge repair. EUROINTERVENTION 2023; 18:957-976. [PMID: 36688459 PMCID: PMC9869401 DOI: 10.4244/eij-d-22-00725] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/04/2022] [Indexed: 01/21/2023]
Abstract
Mitral regurgitation (MR) is the most prevalent valvular heart disease and, when left untreated, results in reduced quality of life, heart failure, and increased mortality. Mitral valve transcatheter edge-to-edge repair (M-TEER) has matured considerably as a non-surgical treatment option since its commercial introduction in Europe in 2008. As a result of major device and interventional improvements, as well as the accumulation of experience by the interventional cardiologists, M-TEER has emerged as an important therapeutic strategy for patients with severe and symptomatic MR in the current European and American guidelines. Herein, we provide a comprehensive up-do-date overview of M-TEER. We define preprocedural patient evaluation and highlight key aspects for decision-making. We describe the currently available M-TEER systems and summarise the evidence for M-TEER in both primary mitral regurgitation (PMR) and secondary mitral regurgitation (SMR). In addition, we provide recommendations for device selection, intraprocedural imaging and guiding, M-TEER optimisation and management of recurrent MR. Finally, we provide information on major unsolved questions and "grey areas" in M-TEER.
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Affiliation(s)
- Jörg Hausleiter
- Department of Cardiology, LMU Klinikum, Ludwig Maximilian University of Munich, Munich, Germany and DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Thomas J Stocker
- Department of Cardiology, LMU Klinikum, Ludwig Maximilian University of Munich, Munich, Germany and DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Marianna Adamo
- Cardiology and Cardiac Catheterization Laboratory, ASST Spedali Civili di Brescia and Department of Medical and Surgical Specialties, University of Brescia, Brescia, Italy
| | - Nicole Karam
- Paris Cardiovascular Research Center, INSERM and Cardiology Department, European Hospital Georges Pompidou, University of Paris, Paris, France
| | - Martin J Swaans
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, the Netherlands
| | - Fabien Praz
- Bern University Hospital, University of Bern, Bern, Switzerland
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