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L'Hoyes W, Robyns T, Moura-Fereira S, De Meester P, Dresselaers T, Herregods MC, Rega F, Masci PG, Willems R, Bogaert J, Vandenberk B. Effectiveness of the risk stratification proposed by the 2022 European Heart Rhythm Association Expert Consensus statement on arrhythmic mitral valve prolapse. Am Heart J 2023; 266:48-60. [PMID: 37595658 DOI: 10.1016/j.ahj.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/04/2023] [Accepted: 08/13/2023] [Indexed: 08/20/2023]
Abstract
BACKGROUND Recently, an expert consensus statement proposed indications where implantation of a primary prevention implantable cardioverter-defibrillator (ICD) may be reasonable in patients with mitral valve prolapse (MVP). The objective was to evaluate the proposed risk stratification by the expert consensus statement. METHODS Consecutive patients with MVP without alternative arrhythmic substrates with cardiac magnetic resonance imaging (CMR) were included in a single-center retrospective registry. Arrhythmic MVP (AMVP) was defined as a total premature ventricular complex burden ≥5%, non-sustained ventricular tachycardia (VT), VT, or ventricular fibrillation. The end point was a composite of SCD, VT, inducible VT, and appropriate ICD shocks. RESULTS In total, 169 patients (52.1% male, median age 51.4 years) were included and 99 (58.6%) were classified as AMVP. Multivariate logistic regression identified the presence of late gadolinium enhancement (OR 2.82, 95%CI 1.45-5.50) and mitral annular disjunction (OR 1.98, 95%CI 1.02-3.86) as only predictors of AMVP. According to the EHRA risk stratification, 5 patients with AMVP (5.1%) had a secondary prevention ICD indication, while in 69 patients (69.7%) the implantation of an ICD may be reasonable. During a median follow-up of 8.0 years (IQR 5.0-15.6), the incidence rate for the composite arrhythmic end point was 0.3%/year (95%CI 0.1-0.8). CONCLUSION More than half of MVP patients referred for CMR met the AMVP diagnostic criteria. Despite low long-term event rates, in 70% of patients with AMVP the implantation of an ICD may be reasonable. Risk stratification of SCD in MVP remains an important knowledge gap and requires urgent investigation.
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Affiliation(s)
- Wouter L'Hoyes
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium
| | - Tomas Robyns
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Sara Moura-Fereira
- Department of Cardiology, Hartcentrum, Jessa Hospital, Hasselt, Belgium; Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
| | - Pieter De Meester
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Tom Dresselaers
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium; Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
| | - Marie-Christine Herregods
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Filip Rega
- Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; Department of Cardiac Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Pier Giorgio Masci
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas Hospital, London, United Kingdom
| | - Rik Willems
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Jan Bogaert
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium; Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
| | - Bert Vandenberk
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium.
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Srivatsa UN. Special issue on electrophysiology and arrhythmia management around the globe: Challenges and opportunities explored. Heart Rhythm O2 2022; 3:720-722. [PMID: 36589012 PMCID: PMC9795310 DOI: 10.1016/j.hroo.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Uma N. Srivatsa
- Address reprint requests and correspondence: Dr Uma N. Srivatsa, Division of Cardiovascular Medicine, University of California Davis Medical Center, 4860 Y St, Ste 2820, Sacramento, CA 95817.
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