1
|
Tian A, Zhang T, Jia Y, Liu J, Guo X, Fang P, Tang M, Chen K, Yao Y. Percutaneous endocardial septal radiofrequency ablation on syncope in patients with hypertrophic obstructive cardiomyopathy: a short-term safety and efficacy study. Ann Med Surg (Lond) 2024; 86:3880-3886. [PMID: 38989172 PMCID: PMC11230744 DOI: 10.1097/ms9.0000000000002243] [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: 01/30/2024] [Accepted: 05/27/2024] [Indexed: 07/12/2024] Open
Abstract
Background Syncope is a serious consequence in patients with hypertrophic obstructive cardiomyopathy (HOCM). Percutaneous endocardial septal radiofrequency ablation (PESA) has emerged as a promising intervention to alleviate symptoms and enhance the quality of life for HOCM patients. However, little is known about the effects of PESA on syncope in HOCM. The authors aimed to study the effects of PESA on syncope in patients with HOCM. Materials and methods Nineteen patients with HOCM and syncope were enrolled. The left ventricular outflow tract gradient (LVOTG) of the patients was more than 50 mmHg despite medication. The participants underwent PESA under the guidance of intracardiac echocardiography (ICE) combined with a three-dimensional electrophysiological mapping system. The patients were followed for 3 (3-5.5) months. Results The mean age of the patients was 54.8±13.7 years. Out of the 19 participants, 7 (37%) were females. During the follow-up, the syncope was completely alleviated in 14 patients (73.7%) or the syncope episodes were reduced greater than or equal to 80% in 16 patients (84.2%). The mean NYHA functional class significantly improved from 2.2±0.7 at baseline to 1.7±0.6 during follow-up (P=0.002). The LVOTG and septal thickness showed a decreasing trend from baseline to follow-up (LVOTG: P=0.083, septal thickness: P=0.086). Conclusion The authors' investigation provides evidence supporting the effectiveness of PESA in reducing syncope episodes in patients with HOCM.
Collapse
Affiliation(s)
- Aiju Tian
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Tianjing Zhang
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Yuhe Jia
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jun Liu
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Xiaogang Guo
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Pihua Fang
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Min Tang
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Keping Chen
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Yan Yao
- Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| |
Collapse
|
2
|
Shuvy M, Postell YY, Carasso S, Marmor D, Strauss BH, Maisano F, Lapenna E. Mitral Valve Interventions for Hypertrophic Obstructive Cardiomyopathy. Can J Cardiol 2024; 40:860-868. [PMID: 38110174 DOI: 10.1016/j.cjca.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/04/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023] Open
Abstract
The mitral valve (MV) plays an important role in the pathophysiology of hypertrophic obstructive cardiomyopathy (HOCM). Dynamic left ventricular outflow tract (LVOT) obstruction, caused by systolic anterior motion (SAM), is a common occurrence in most patients with hypertrophic cardiomyopathy and is directly associated with the MV apparatus. First line therapy for HOCM patients is pharmacological, and surgical intervention is often indicated for patients who do not respond to medical therapy. Emerging research on mitral disease in HOCM, specifically mitral regurgitation (MR), demonstrates that these patients frequently do not respond to standard therapeutic options, and can benefit from MV interventions. In this review, we describe the involvement of the MV in the pathogenesis of HOCM, discuss medical therapy, and explore available mitral procedures. Surgical myectomy, often combined with various modifications to the MV apparatus, is frequently necessary to achieve a durable resolution of LVOT obstruction and SAM-related MR. Alcohol septal ablation, an alternative to surgical myectomy, will be briefly mentioned. We also emphasize the role of transcatheter edge-to-edge repair (TEER) as a promising and novel therapeutic option for HOCM patients. Over time, TEER has established itself as an effective and safe procedure, demonstrating success across a spectrum of anatomical variations. The leaflet modification and movement restriction achieved through TEER help reduce SAM and, consequently, have the potential to alleviate LVOT obstruction and SAM-related MR. Furthermore, we propose a treatment algorithm for cases where TEER is a potential course of action for patients who are at high risk for other interventions.
Collapse
Affiliation(s)
- Mony Shuvy
- Jesselson Integrated Heart Centre, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel.
| | - Yael Yan Postell
- Jesselson Integrated Heart Centre, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Shemy Carasso
- Jesselson Integrated Heart Centre, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - David Marmor
- Jesselson Integrated Heart Centre, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Bradly H Strauss
- Schulich Heart Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Francesco Maisano
- Valve Center and Cardiac Surgery, IRCCS Ospedale San Raffaele and Faculty of Medicine, Università Vita Salute San Raffaele, Milan, Italy
| | - Elisabetta Lapenna
- Valve Center and Cardiac Surgery, IRCCS Ospedale San Raffaele and Faculty of Medicine, Università Vita Salute San Raffaele, Milan, Italy
| |
Collapse
|
3
|
Paratz ED, Mundisugih J, Rowe SJ, Kizana E, Semsarian C. Gene Therapy in Cardiology: Is a Cure for Hypertrophic Cardiomyopathy on the Horizon? Can J Cardiol 2024; 40:777-788. [PMID: 38013066 DOI: 10.1016/j.cjca.2023.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/07/2023] [Accepted: 11/22/2023] [Indexed: 11/29/2023] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is the most common genetic cardiomyopathy worldwide, affecting approximately 1 in 500 individuals. Current therapeutic interventions include lifestyle optimisation, medications, septal reduction therapies, and, rarely, cardiac transplantation. Advances in our understanding of disease-causing genetic variants in HCM and their associated molecular mechanisms have led to the potential for targeted therapeutics and implementation of precision and personalised medicine. Results from preclinical research are promising and raise the question of whether cure of some subtypes of HCM may be possible in the future. This review provides an overview of current genetic therapy platforms, including 1) genome editing, 2) gene replacement, 3) allelic-specific silencing, and 4) signalling pathway modulation. The current applicability of each of these platforms within the paradigm of HCM is examined, with updates on current and emerging trials in each domain. Barriers and limitations within the current landscape are also highlighted. Despite recent advances, translation of genetic therapy for HCM to clinical practice is still in early development. In realising the promises of genetic HCM therapies, ethical and equitable access to safe gene therapy must be prioritised.
Collapse
Affiliation(s)
- Elizabeth D Paratz
- Baker Heart and Diabetes Institute, Prahran, Victoria, Australia; St Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia; Faculty of Medicine, Dentistry and Health Sciences, Melbourne University, Parkville, Victoria, Australia.
| | - Juan Mundisugih
- Centre for Heart Research, Westmead Institute for Medical Research, Westmead Clinical School, University of Sydney, Westmead, New South Wales, Australia; Department of Cardiology, Westmead Hospital, Westmead, New South Wales, Australia
| | - Stephanie J Rowe
- Baker Heart and Diabetes Institute, Prahran, Victoria, Australia; St Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia; Faculty of Medicine, Dentistry and Health Sciences, Melbourne University, Parkville, Victoria, Australia
| | - Eddy Kizana
- Centre for Heart Research, Westmead Institute for Medical Research, Westmead Clinical School, University of Sydney, Westmead, New South Wales, Australia
| | - Christopher Semsarian
- Department of Cardiology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia; Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, University of Sydney, Camperdown, New South Wales, Australia
| |
Collapse
|
4
|
Erez Y, Ghantous E, Shetrit A, Zamanzadeh RS, Zahler D, Granot Y, Sapir OR, Laufer Perl M, Banai S, Topilsky Y, Havakuk O. Exercise limitation in hypertrophic cardiomyopathy: combined stress echocardiography and cardiopulmonary exercise test. ESC Heart Fail 2024. [PMID: 38638011 DOI: 10.1002/ehf2.14776] [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: 06/16/2023] [Revised: 02/16/2024] [Accepted: 03/15/2024] [Indexed: 04/20/2024] Open
Abstract
AIMS The study aims to investigate exercise-limiting factors in hypertrophic cardiomyopathy (HCM) using combined stress echocardiography and cardiopulmonary exercise test. METHODS AND RESULTS A symptom-limited ramp bicycle exercise test was performed in the semi-supine position on a tilting dedicated ergometer. Echocardiographic images were obtained concurrently with gas exchange measurements along predefined stages of exercise. Oxygen extraction was calculated using the Fick equation at each activity level. Thirty-six HCM patients (mean age 67 ± 6 years, 72% men, 18 obstructive HCM) were compared with age and sex-matched 29 controls. At rest, compared with controls, E/E' ratio (6.26 ± 2.3 vs. 14 ± 2.5, P < 0.001) and systolic pulmonary artery pressures (SPAP) (22.6 ± 3.4 vs. 34 ± 6.2 mmHg, P = 0.023) were increased. Along with the stages of exercise (unloaded; anaerobic threshold; peak), diastolic function worsened (E/e' 8.9 ± 2.6 vs. 13.8 ± 3.6 P = 0.011; 9.4 ± 2.3 vs. 18.6 ± 3.3 P = 0.001; 8.7 ± 1.9 vs. 21.5 ± 4, P < 0.001), SPAP increased (23 ± 2.7 vs. 33 ± 4.4, P = 0.013; 26 ± 3.2 vs. 40 ± 2.9, P < 0.001; 26 ± 3.5 vs. 45 ± 7 mmHg, P < 0.001), and oxygen consumption (6.6 ± 1.7 vs. 6.8 ± 1.6, P = 0.86; 18.1 ± 2.2 vs. 14.6 ± 1.5, P = 0.008; 20.3 ± 3 vs. 15.1 ± 2.1 mL/kg/min, P = 0.01) was reduced. Oxygen pulse was blunted (6.3 ± 1.8 vs. 6.2 ± 1.9, P = 0.79; 10 ± 2.1 vs. 8.8 ± 1.6, P = 0.063; 12.2 ± 2 vs. 8.2 ± 2.3 mL/beat, P = 0.002) due to an insufficient increase in both stroke volume (92.3 ± 17 vs. 77.3 ± 14.5 P = 0.021; 101 ± 19.1 vs. 87.3 ± 15.7 P = 0.06; 96.5 ± 12.2 vs. 83.6 ± 16.1 mL, P = 0.034) and oxygen extraction (0.07 ± 0.03 vs. 0.07 ± 0.02, P = 0.47; 0.13 ± 0.02 vs. 0.10 ± 0.03, P = 0.013; 0.13 ± 0.03 vs. 0.11 ± 0.03, P = 0.03). Diastolic dysfunction, elevated SPAP, and the presence of atrial fibrillation were associated with reduced exercise capacity. CONCLUSIONS Both central and peripheral cardiovascular limitations are involved in exercise intolerance in HCM. Diastolic dysfunction seems to be the main driver for this limitation.
Collapse
Affiliation(s)
- Yonatan Erez
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Eihab Ghantous
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Aviel Shetrit
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Ryan S Zamanzadeh
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - David Zahler
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Yoav Granot
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Orly Ran Sapir
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Michal Laufer Perl
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Shmuel Banai
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Yan Topilsky
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| | - Ofer Havakuk
- Cardiology Division, Tel Aviv Sourasky Medical Center affiliated to Tel Aviv University, 6 Weissman Street, Tel Aviv, 64239, Israel
| |
Collapse
|
5
|
Saleh D, Meng Z, Johnson N, Baldridge A, Zielinski AR, Choudhury L. The Clinical Impact of SARS-CoV-2 on Hypertrophic Cardiomyopathy. J Cardiovasc Dev Dis 2024; 11:104. [PMID: 38667722 PMCID: PMC11050677 DOI: 10.3390/jcdd11040104] [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: 02/12/2024] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND This study aims to understand and describe the clinical impact of SARS-CoV-2 (COVID-19) infection in patients with Hypertrophic Cardiomyopathy (HCM). METHODS A data repository of over 6.6 million patients in a large metropolitan (Chicago IL) healthcare system was queried to identify adults with a history of HCM and COVID-19 infection between 2019 and 2021. Propensity score-matched analysis was performed based on age, sex, BMI, and elements of the cardiovascular history, including tobacco use, hypertension, hyperlipidemia, myocardial injury, and heart failure. RESULTS Individuals with HCM and COVID-19 infection had more total hospitalizations (41.6 v 23 per 100 persons, p < 0.01), more heart-failure-related hospitalizations (24.2 v 8.7 per 100-persons, p < 0.01), more non-ST elevation myocardial injury (NSTEMI) hospitalizations (8.6 v 4.6 per 100-persons, p < 0.01), and increased mortality (10.8 v 5 per 100-persons, p < 0.01) compared to HCM patients without a history of COVID-19 infection. Patients with HCM and COVID-19 were also noted to have a higher peak CRP when compared to those without prior COVID-19 (Inter-quartile range of 9.0-106.9 v 1.8-21.3, p < 0.01). CONCLUSIONS In patients with HCM, COVID-19 infection is associated with increased incidence of myocardial injury, increased number of total and heart-failure specific hospitalizations, and increased mortality.
Collapse
Affiliation(s)
- Danish Saleh
- Division of Cardiology, Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Zhiying Meng
- Bluhm Cardiovascular Institute Clinical Trials Unit (BCVI-CTU), Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Nicholas Johnson
- Information Technology, Research Analytics, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Abigail Baldridge
- Bluhm Cardiovascular Institute Clinical Trials Unit (BCVI-CTU), Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Allison R. Zielinski
- Division of Cardiology, Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
- Bluhm Cardiovascular Institute, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Lubna Choudhury
- Division of Cardiology, Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
- Bluhm Cardiovascular Institute, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| |
Collapse
|
6
|
Oktay V, Arslan S, Gecit MH, Bulat Z, Gokce ME. Short- and Mid-Term Outcomes of Early Alcohol Septal Ablation Therapy for Patients with Mildly Symptomatic Hypertrophic Obstructive Cardiomyopathy: A Tertiary Center Experience. J Clin Med 2024; 13:1444. [PMID: 38592289 PMCID: PMC10932242 DOI: 10.3390/jcm13051444] [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: 01/15/2024] [Revised: 02/16/2024] [Accepted: 02/27/2024] [Indexed: 04/10/2024] Open
Abstract
Background: Left ventricular outflow tract obstruction (LVOTO) impairs survival and diminishes quality of life in patients with hypertrophic obstructive cardiomyopathy (HOCM). In this study, we aimed to investigate the safety and the efficacy of earlier alcohol septal ablation (ASA) in patients with HOCM. Methods: A total of 47 patients with mildly symptomatic HOCM (NYHA II) and having poor functional capacity despite maximal tolerated medical therapy were included. Results: The mean age of the patients was 55 ± 14, and 57% of the patients were male. All clinical endpoint targets including 30 d mortality (1% vs. 0% p < 0.01), 30 d adverse complications (10% vs. 0% p < 0.01), 30 d complete heart block resulting in need for permanent pacemaker (10% vs. 4.2% p < 0.01), more than moderate residual mitral regurgitation (5% vs. 2.1% p < 0.01), repeat procedure rate (10% vs. 4.2% p < 0.01), improvement of (NYHA) class (90% vs. 95.7% p < 0.01), rest and provoked (LVOT) gradient < 50 mmHg (90% vs. 97.8% p < 0.01) were significantly reached. Conclusions: In patients with mildly symptomatic HOCM (NYHA II), earlier ASA may be performed as an effective and safe procedure in experienced centers.
Collapse
Affiliation(s)
- Veysel Oktay
- Department of Cardiology, Institute of Cardiology, Istanbul University Cerrahpasa, 34000 Istanbul, Turkey; (S.A.); (M.H.G.); (Z.B.); (M.E.G.)
| | | | | | | | | |
Collapse
|
7
|
Shuvy M, Maisano F. Evolving indications for transcatheter mitral edge-to-edge repair. EUROINTERVENTION 2024; 20:e230-e238. [PMID: 38389473 PMCID: PMC10870010 DOI: 10.4244/eij-d-23-00700] [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: 08/20/2023] [Accepted: 11/22/2023] [Indexed: 02/24/2024]
Abstract
Transcatheter mitral edge-to-edge repair (TEER) is an established procedure for managing mitral regurgitation (MR) in high-risk patients. It is effective in treating both primary and secondary MR, as reported in the surgical and interventional literature. Over time, TEER has gained popularity and achieved procedural success in various anatomies. The less invasive nature of TEER, along with its high safety profile and immediate haemodynamic improvement suggest potential benefits in high-risk populations who are not normally included in major trials. These patients, often deemed unsuitable for surgical intervention, are typically managed conservatively, despite accumulating evidence suggesting the potential of clinical improvement by reducing MR through TEER. Examples include post-myocardial infarction MR, patients with hypertrophic obstructive cardiomyopathy and patients experiencing recurrent MR after surgical intervention. This review discusses the utilisation of TEER beyond recognised indications, examining outcomes and limitations in diverse patient populations. Further studies are warranted to evaluate the benefits of TEER in clinical scenarios beyond the current indications.
Collapse
Affiliation(s)
- Mony Shuvy
- Jesselson Integrated Heart Centre, Shaare Zedek Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Francesco Maisano
- Valve Center and Cardiac Surgery, IRCCS Ospedale San Raffaele and Faculty of Medicine, Università Vita Salute San Raffaele, Milan, Italy
| |
Collapse
|
8
|
Bali AD, Malik A, Naidu SS. Treatment Strategies for Hypertrophic Cardiomyopathy: Alcohol Septal Ablation and Procedural Step-by-Step Technique. Am J Cardiol 2024; 212S:S42-S52. [PMID: 38368036 DOI: 10.1016/j.amjcard.2023.10.064] [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: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 02/19/2024]
Abstract
Alcohol septal ablation (ASA) is a well-established procedure for septal reduction therapy in patients with obstructive hypertrophic cardiomyopathy, significant at rest or provocable outflow tract gradients, and medically refractory symptoms. This percutaneous approach to relief of obstruction and eventual cardiac remodeling involves the infusion of a small quantity of ethanol into an appropriately targeted septal artery that is feeding the basal septum to create an iatrogenic and controlled focal infarction. Early akinesia is followed by subsequent thinning and remodeling, which widens the outflow tract, reducing or eliminating the obstruction. Historically, the use of ASA was reserved primarily for high-risk surgical candidates; however, more contemporary data suggest similar outcomes in the short-term and long-term safety of the procedure and overall effectiveness in relieving obstructive symptoms when it is performed in broader populations at experienced centers. Therefore, the current guidelines published in 2020 support ASA as a class 1 indication, similar to its open-heart surgical counterpart, surgical myectomy, when no concomitant significant coronary or valve surgical indication exists. This article summarizes contemporary management of patients with hypertrophic cardiomyopathy who were selected for ASA and details procedural methods and outcomes.
Collapse
Affiliation(s)
- Atul D Bali
- Westchester Medical Center, New York Medical College, Valhalla, New York.
| | - Aaqib Malik
- Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Srihari S Naidu
- Westchester Medical Center, New York Medical College, Valhalla, New York
| |
Collapse
|
9
|
Goldie FC, Lee MMY, Coats CJ, Nordin S. Advances in Multi-Modality Imaging in Hypertrophic Cardiomyopathy. J Clin Med 2024; 13:842. [PMID: 38337535 PMCID: PMC10856479 DOI: 10.3390/jcm13030842] [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: 12/22/2023] [Revised: 01/27/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is characterized by abnormal growth of the myocardium with myofilament disarray and myocardial hyper-contractility, leading to left ventricular hypertrophy and fibrosis. Where culprit genes are identified, they typically relate to cardiomyocyte sarcomere structure and function. Multi-modality imaging plays a crucial role in the diagnosis, monitoring, and risk stratification of HCM, as well as in screening those at risk. Following the recent publication of the first European Society of Cardiology (ESC) cardiomyopathy guidelines, we build on previous reviews and explore the roles of electrocardiography, echocardiography, cardiac magnetic resonance (CMR), cardiac computed tomography (CT), and nuclear imaging. We examine each modality's strengths along with their limitations in turn, and discuss how they can be used in isolation, or in combination, to facilitate a personalized approach to patient care, as well as providing key information and robust safety and efficacy evidence within new areas of research.
Collapse
Affiliation(s)
- Fraser C. Goldie
- School of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow G12 8TA, UK; (F.C.G.); (M.M.Y.L.); (C.J.C.)
| | - Matthew M. Y. Lee
- School of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow G12 8TA, UK; (F.C.G.); (M.M.Y.L.); (C.J.C.)
| | - Caroline J. Coats
- School of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow G12 8TA, UK; (F.C.G.); (M.M.Y.L.); (C.J.C.)
- Department of Cardiology, Queen Elizabeth University Hospital, Glasgow G51 4TF, UK
| | - Sabrina Nordin
- School of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow G12 8TA, UK; (F.C.G.); (M.M.Y.L.); (C.J.C.)
- Department of Cardiology, Queen Elizabeth University Hospital, Glasgow G51 4TF, UK
| |
Collapse
|
10
|
Liu J, Tan T, Wei P, Ma J, Zhong L, Qiu H, Wang S, Zhuang J, Zhu W, Guo H, Chen J. Anomalous papillary muscle insertion into the mitral valve leaflet in hypertrophic obstructive cardiomyopathy: a lip nevus sign in echocardiography. Front Cardiovasc Med 2023; 10:1292142. [PMID: 38124897 PMCID: PMC10731039 DOI: 10.3389/fcvm.2023.1292142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Background Anomalous papillary muscle (APM) insertion into the mitral valve leaflet is rare but clinically important in hypertrophic obstructive cardiomyopathy (HOCM). In this study, we report the detection rate of APM insertion into the mitral valve using preoperative imaging modalities and the surgical outcomes of the patients. Methods By retrospectively reviewing the clinical records of patients with HOCM who underwent surgical treatment by a single operation group at our center from January 2020 to June 2023, patients with APM insertion into the mitral valve leaflet were identified. Baseline data, image characteristics, and surgical outcomes were analyzed. Results The incidence of APM insertion into the mitral valve leaflet was 5.1% (8/157). The insertion site was located at A3 in six cases, which was more common than at A2 (n = 2). Preoperative echocardiography was used to identify two patients (25%) with APM insertion. We observed a particular echocardiographic feature for APM in HOCM patients, which was noted as a "lip nevus sign", with a higher detection rate (62.5%). All patients successfully underwent septal myectomy with concomitant APM excision or mitral valve replacement via the transaortic (n = 5) or transmitral (n = 3) approach. The mean age was 49.0 ± 17.4 years and seven patients (87.5%) were female. Interventricular septum thickness (17.0 mm vs. 13.3 mm, P = 0.012) and left ventricular outflow gradient (117.5 mmHg vs. 7.5 mmHg, P = 0.012) were significantly decreased after surgery. Residual outflow obstruction, systolic anterior motion, and ≥3+ mitral regurgitation were negative. During the follow-up of 26.2 ± 12.2 months, there were no reported operations, adverse events, mitral regurgitation aggravations, recurrences of outflow obstruction, or instances of SAM. Conclusions Papillary muscles inserted into the mitral valve leaflet are a subtype of subvalvular malformation in HOCM that requires surgical correction. The lip nevus sign on echocardiography is a characteristic of APM insertion in HOCM and may improve the preoperative detection rate. Adequate myectomy with anomalous papillary muscle excision has achieved good results in reducing the outflow gradient and eliminating mitral regurgitation, with good outcomes at short-to-intermediate follow-up.
Collapse
Affiliation(s)
- Jian Liu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Tong Tan
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vascular Diseases, Beijing, China
| | - Peijian Wei
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Jianrui Ma
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Lishan Zhong
- Division of Adult Echocardiography, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, China
| | - Hailong Qiu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Shengwen Wang
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Jian Zhuang
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Wei Zhu
- Division of Adult Echocardiography, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, China
| | - Huiming Guo
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| | - Jimei Chen
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical
Sciences, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, Guangdong, China
| |
Collapse
|
11
|
Zhang R, Zhao F, Wang J, Qin Y, Wang T, Chu AA. Case Report: Integrated echocardiographic assessment guided Liwen procedure for treating obstructive hypertrophic cardiomyopathy with ventricular aneurysm. Front Cardiovasc Med 2023; 10:1278457. [PMID: 38028451 PMCID: PMC10646534 DOI: 10.3389/fcvm.2023.1278457] [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: 08/16/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is a genetic myocardial disease, with an estimated incidence of 0.2%-6%, and is the main cause of sudden cardiac death (SCD) in young athletes. Left ventricular apical aneurysm (LVAA) is a rare subtype of HCM, accounting for about 5% of HCM patients, and has a higher incidence of cardiovascular adverse events. In cases of hypertrophic obstructive cardiomyopathy with LVAA (HOCM-LVAA) that do not respond adequately to optimized medical therapy, the echocardiography-guided percutaneous intra-myocardial septal radiofrequency ablation (PIMSRA, Liwen procedure) emerges as a promising and effective novel therapeutic approach. In this case report, we present for the first time a comprehensive application of echocardiographic techniques, including TTE, 2-D STE, and contrast enhancement, in the diagnosis, treatment, surgical guidance, and assessment of therapeutic outcomes in a case of HOCM-LVAA.
Collapse
Affiliation(s)
| | | | | | | | | | - Ai-Ai Chu
- Department of Echocardiography, First Clinical Medicine School, Gansu Province Hospital, Gansu University of Chinese Medicine, Lanzhou, China
| |
Collapse
|
12
|
Musat D, Mittal S. Treatment With Microspheres in Patients With Obstructive Hypertrophic Cardiomyopathy: An Old Therapy Tries to Emerge With Long-Term Outcome Data. Am J Cardiol 2023; 204:419-420. [PMID: 37599181 DOI: 10.1016/j.amjcard.2023.07.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/22/2023]
Affiliation(s)
- Dan Musat
- Department of Cardiology, Valley Hospital, Ridgewood, New Jersey.
| | - Suneet Mittal
- Department of Cardiology, Valley Hospital, Ridgewood, New Jersey
| |
Collapse
|
13
|
Gragnano F, Pelliccia F, Guarnaccia N, Niccoli G, De Rosa S, Piccolo R, Moscarella E, Fabris E, Montone RA, Cesaro A, Porto I, Indolfi C, Sinagra G, Perrone Filardi P, Andò G, Calabrò P. Alcohol Septal Ablation in Patients with Hypertrophic Obstructive Cardiomyopathy: A Contemporary Perspective. J Clin Med 2023; 12:jcm12082810. [PMID: 37109147 PMCID: PMC10142866 DOI: 10.3390/jcm12082810] [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: 03/02/2023] [Revised: 04/02/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Alcohol septal ablation is a minimally invasive procedure for the treatment of left ventricular outflow tract (LVOT) obstruction in patients with hypertrophic obstructive cardiomyopathy (HOCM) who remain symptomatic despite optimal medical therapy. The procedure causes a controlled myocardial infarction of the basal portion of the interventricular septum by the injection of absolute alcohol with the aim of reducing LVOT obstruction and improving the patient's hemodynamics and symptoms. Numerous observations have demonstrated the efficacy and safety of the procedure, making it a valid alternative to surgical myectomy. In particular, the success of alcohol septal ablation depends on appropriate patient selection and the experience of the institution where the procedure is performed. In this review, we summarize the current evidence on alcohol septal ablation and highlight the importance of a multidisciplinary approach involving a team of clinical and interventional cardiologists and cardiac surgeons with high expertise in the management of HOCM patients-the Cardiomyopathy Team.
Collapse
Affiliation(s)
- Felice Gragnano
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", 83043 Naples, Italy
- Division of Clinical Cardiology, Azienda Ospedaliera di Rilievo Nazionale "Sant'Anna e San Sebastiano", 81100 Caserta, Italy
| | - Francesco Pelliccia
- Department of Cardiovascular Sciences, University Sapienza, 00185 Rome, Italy
| | - Natale Guarnaccia
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", 83043 Naples, Italy
- Division of Clinical Cardiology, Azienda Ospedaliera di Rilievo Nazionale "Sant'Anna e San Sebastiano", 81100 Caserta, Italy
| | - Giampaolo Niccoli
- Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
| | - Salvatore De Rosa
- Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
| | - Raffaele Piccolo
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80138 Naples, Italy
| | - Elisabetta Moscarella
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", 83043 Naples, Italy
- Division of Clinical Cardiology, Azienda Ospedaliera di Rilievo Nazionale "Sant'Anna e San Sebastiano", 81100 Caserta, Italy
| | - Enrico Fabris
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, 34127 Trieste, Italy
| | - Rocco Antonio Montone
- Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Arturo Cesaro
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", 83043 Naples, Italy
- Division of Clinical Cardiology, Azienda Ospedaliera di Rilievo Nazionale "Sant'Anna e San Sebastiano", 81100 Caserta, Italy
| | - Italo Porto
- Dipartimento CardioToracoVascolare, Ospedale Policlinico San Martino IRCCS, 16132 Genova, Italy
| | - Ciro Indolfi
- Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
- Mediterranea Cardiocentro, 80122 Naples, Italy
| | - Gianfranco Sinagra
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, 34127 Trieste, Italy
| | - Pasquale Perrone Filardi
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80138 Naples, Italy
| | - Giuseppe Andò
- Department of Clinical and Experimental Medicine, University of Messina, AOU Policlinic "G. Martino", 98122 Messina, Italy
| | - Paolo Calabrò
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", 83043 Naples, Italy
- Division of Clinical Cardiology, Azienda Ospedaliera di Rilievo Nazionale "Sant'Anna e San Sebastiano", 81100 Caserta, Italy
| |
Collapse
|