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Green N, Chen Y, O'Mahony C, Elliott PM, Barriales-Villa R, Monserrat L, Anastasakis A, Biagini E, Gimeno JR, Limongelli G, Pavlou M, Omar RZ. A cost-effectiveness analysis of hypertrophic cardiomyopathy sudden cardiac death risk algorithms for implantable cardioverter defibrillator decision-making. EUROPEAN HEART JOURNAL. QUALITY OF CARE & CLINICAL OUTCOMES 2024; 10:285-293. [PMID: 37660245 PMCID: PMC11238638 DOI: 10.1093/ehjqcco/qcad050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/04/2023]
Abstract
AIMS To conduct a contemporary cost-effectiveness analysis examining the use of implantable cardioverter defibrillators (ICDs) for primary prevention in patients with hypertrophic cardiomyopathy (HCM). METHODS A discrete-time Markov model was used to determine the cost-effectiveness of different ICD decision-making rules for implantation. Several scenarios were investigated, including the reference scenario of implantation rates according to observed real-world practice. A 12-year time horizon with an annual cycle length was used. Transition probabilities used in the model were obtained using Bayesian analysis. The study has been reported according to the Consolidated Health Economic Evaluation Reporting Standards checklist. RESULTS Using a 5-year SCD risk threshold of 6% was cheaper than current practice and has marginally better total quality adjusted life years (QALYs). This is the most cost-effective of the options considered, with an incremental cost-effectiveness ratio of £834 per QALY. Sensitivity analyses highlighted that this decision is largely driven by what health-related quality of life (HRQL) is attributed to ICD patients and time horizon. CONCLUSION We present a timely new perspective on HCM-ICD cost-effectiveness, using methods reflecting real-world practice. While we have shown that a 6% 5-year SCD risk cut-off provides the best cohort stratification to aid ICD decision-making, this will also be influenced by the particular values of costs and HRQL for subgroups or at a local level. The process of explicitly demonstrating the main factors, which drive conclusions from such an analysis will help to inform shared decision-making in this complex area for all stakeholders concerned.
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Affiliation(s)
- Nathan Green
- Department of Statistical Science, University College London, 1-19 Torrington Place, London WC1E 6BT, UK
| | - Yang Chen
- Institute of Health Informatics, Faculty of Population Health Sciences, University College London, London WC1E 6BT, UK
| | - Constantinos O'Mahony
- Institute of Cardiovascular Science, University College London, Gower St, London WC1E 6BT, UK
- St Bartholomew's Hospital, London EC1A 7BE, UK
| | - Perry M Elliott
- Institute of Cardiovascular Science, University College London, Gower St, London WC1E 6BT, UK
- St Bartholomew's Hospital, London EC1A 7BE, UK
| | - Roberto Barriales-Villa
- Unidad de Cardiopatías Familiares, Cardiology Service, Complexo Hospitalario Universitario A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC, CIBERCV), A Coruña 15006, Spain
| | - Lorenzo Monserrat
- Unidad de Cardiopatías Familiares, Cardiology Service, Complexo Hospitalario Universitario A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC, CIBERCV), A Coruña 15006, Spain
| | - Aristides Anastasakis
- Unit of Inherited and Rare Cardiovascular Diseases, Onassis Cardiac Surgery Centre, Leof. Andrea Siggrou 356, Kallithea 176 74, Greece
| | - Elena Biagini
- Cardiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, Bologna 40138, Italy
| | - Juan Ramon Gimeno
- Cardiac Department, University Hospital Virgen Arrixaca, Murcia-Cartagenas, El Palmar, Murcia 30120, Spain
| | - Giuseppe Limongelli
- Monaldi Hospital, Second University of Naples, Via Leonardo Bianchi 1, Naples 80131, Italy
| | - Menelaos Pavlou
- Clinical Research Informatics Unit, University College London Hospitals, London NW1 2DA, UK
| | - Rumana Z Omar
- Clinical Research Informatics Unit, University College London Hospitals, London NW1 2DA, UK
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Chen QF, Hu J, Hu J, Nijjar PS, Xu J, Shi S, Liang D, Liao H, Gao J, Lin WH, You S, Zhou XD. Clinical characteristics and prognosis of patients with hypertrophic cardiomyopathy and heart failure with preserved ejection fraction. Clin Res Cardiol 2024; 113:761-769. [PMID: 38197895 PMCID: PMC11026190 DOI: 10.1007/s00392-023-02371-5] [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: 09/10/2023] [Accepted: 12/30/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND Whether heart failure with preserved ejection fraction (HFpEF) is associated with an increased risk of developing systolic dysfunction and a poor prognosis in hypertrophic cardiomyopathy (HCM) patients is unknown. OBJECTIVE We aimed to assess risk factors for the development of end-stage (ES) heart failure (HF) (ejection fraction < 50%) and compare the prognosis of different HF phenotypes. METHODS This retrospective study was conducted on patients with HCM in China between January 2009 and February 2023. Patients were stratified into three different groups: HCM-non-HF, HCM-HFpEF and HCM-heart failure with reduced ejection fraction (HCM-HFrEF). The primary outcome was a composite of major adverse cardiac events (MACEs), including all-cause deaths, HF hospitalization, sudden cardiac death and ventricular tachycardia. RESULTS Of 3,620 HCM patients enrolled, 1,553 (42.9%) had non-HF, 1,666 (46.0%) had HFpEF, and 579 patients (11.1%) had HFrEF at baseline. During the median follow-up period of 4.0 years (IQR 1.4-9.4 years), patients with HCM-HFpEF exhibited a higher incidence of ES-HF than those with HCM-non-HF (12.4% vs. 2.7%, P < 0.001). HFpEF was an independent risk factor for ES-HF development (HR 3.84, 2.54-5.80, P < 0.001). MACEs occurred in 26.9% with a higher incidence in HCM-HFpEF than HCM-non-HF (36.6% vs 12.2%, P < 0.001). HFpEF was an independent predictor of MACEs (HR 2.13, 1.75-2.59, P < 0.001). CONCLUSIONS HFpEF is common in HCM. Compared to non-HF, it increases the risk of LVEF decline and poor prognosis. It may aid in risk stratification and need close echocardiography follow-up.
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Affiliation(s)
- Qin-Fen Chen
- Medical Care Center, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou, 325100, China
- Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325000, China
| | - Jiandong Hu
- Department of Information, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jie Hu
- Department of Cardiovascular Medicine, The Heart Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Prabhjot S Nijjar
- Division of Cardiovascular Medicine, Department of Medicine, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Jiahui Xu
- Department of Cardiovascular Medicine, The Heart Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Shanzhen Shi
- Department of Cardiovascular Medicine, The Heart Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Dongjie Liang
- Department of Cardiovascular Medicine, The Heart Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Hetong Liao
- Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325000, China
| | - Jiaqi Gao
- Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325000, China
| | - Wei-Hong Lin
- Medical Care Center, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou, 325100, China
| | - Shenban You
- Department of Cardiovascular Medicine, The Heart Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiao-Dong Zhou
- Department of Cardiovascular Medicine, The Heart Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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3
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Maron BJ, Rowin EJ, Maron MS. Advances in the Management of Hypertrophic Cardiomyopathy Leading to Low Disease-Related Mortality in 2023. Am J Cardiol 2024; 212S:S77-S82. [PMID: 38368039 DOI: 10.1016/j.amjcard.2023.10.073] [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: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 02/19/2024]
Abstract
Hypertrophic cardiomyopathy (HCM) is a relatively common often inherited heart disease encumbered throughout much of its almost 60-year history by the expectation of an unfavorable outcome with shortened longevity. However, it is notable that in 2023, most patients affected with HCM can now achieve normal or extended life expectancy without major disability because of a comprehensive constellation of management strategies that have evolved largely over the last 20 years. Distinct adverse disease pathways dictate high-benefit low-risk personalized treatments, without reliance on genomics and sarcomere mutations, including: primary prevention implantable defibrillators for sudden cardiac death prevention, surgical myectomy and percutaneous alcohol septal ablation to reverse heart failure symptoms, anticoagulation to prevent embolic stroke associated with concomitant atrial fibrillation, external defibrillation and hypothermia for out-of-hospital cardiac arrest, and heart transplant in a small patient subgroup with end-stage disease. Large cohort studies using these contemporary management strategies achieved remarkably low HCM-related mortality (0.5%/year) across all age groups, which is lower than in the other cardiac or noncardiac risks of living, and largely confined to nonobstructive patients with progressive heart failure, including those awaiting heart transplant.
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Affiliation(s)
- Barry J Maron
- HCM Center, Lahey Hospital and Medical Center, Burlington, Massachusetts.
| | - Ethan J Rowin
- HCM Center, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Martin S Maron
- HCM Center, Lahey Hospital and Medical Center, Burlington, Massachusetts
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4
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Maron MS, Rowin EJ, Maron BJ. The Paradigm of Sudden Death Prevention in Hypertrophic Cardiomyopathy. Am J Cardiol 2024; 212S:S64-S76. [PMID: 38368038 DOI: 10.1016/j.amjcard.2023.10.076] [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: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 02/19/2024]
Abstract
Hypertrophic cardiomyopathy (HCM) is a relatively common and, often, inherited cardiac disease, once regarded as largely untreatable with ominous prognosis and, perhaps, most visibly as a common cause of sudden cardiac death (SCD) in the young. However, HCM is now more accurately considered a treatable disease with management options that significantly alter its clinical course. This is particularly true for SCD because the penetration of implantable cardioverter-defibrillators into HCM practice enables primary prevention device therapy that reliably terminates potentially lethal ventricular tachyarrhythmias (3% to 4%/year). This therapeutic advance is largely responsible for >10-fold decrease in the overall disease-related mortality to 0.5%/year, independent of patient age. A guideline-based clinical risk stratification algorithm has evolved, which included variables identifiable with cardiac magnetic resonance: ≥1 risk markers judged major within the clinical profile of an individual patient, associated with a measure of physician judgment and shared decision-making, can be sufficient to consider the recommendation of a prophylactic defibrillator implant. Implantable cardioverter-defibrillator decisions using the American College of Cardiology and the American Heart Association traditional major risk marker strategy are associated with a 95% sensitivity for identifying those patients who subsequently experience appropriate therapy, albeit often 5 to 10+ years after implant but without heart failure deterioration or death after a device intervention. A mathematical SCD risk score proposed by European Society of Cardiology is associated with a relatively low sensitivity (33%) for predicting and preventing SCD events but with potential for less device overtreatment.
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Affiliation(s)
- Martin S Maron
- Lahey Hospital and Medical Center, HCM Center, Burlington, Massachusetts.
| | - Ethan J Rowin
- Lahey Hospital and Medical Center, HCM Center, Burlington, Massachusetts
| | - Barry J Maron
- Lahey Hospital and Medical Center, HCM Center, Burlington, Massachusetts
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5
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Hen Y, Otaki Y, Iguchi N, Takara A, Takada K, Kanisawa M, Machida H, Inoue K, Takamisawa I, Takayama M. High-risk imaging characteristics in left ventricular apex for the life-threatening arrhythmic events in Japanese hypertrophic cardiomyopathy patients. Heart Vessels 2023; 38:1442-1450. [PMID: 37587371 DOI: 10.1007/s00380-023-02295-0] [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: 03/31/2023] [Accepted: 07/19/2023] [Indexed: 08/18/2023]
Abstract
Left ventricular (LV) apical aneurysm is known to be associated with the life-threatening arrhythmic events in hypertrophic cardiomyopathy (HCM). However, the current 2014 ESC guideline has not included apical aneurysm as a major risk factor for sudden cardiac death and 2018 JCS guideline includes it only as a modulator, while it has been included as a new major risk marker in 2020 AHA/ACC guideline. Therefore, we sought to identify high-risk imaging characteristics in LV apex which is associated with a higher occurrence of ventricular tachycardia/fibrillation (VT/VF). In 99 consecutive Japanese HCM patients (median age, 65 years; 59 males) undergoing implantable cardioverter-defibrillator (ICD) implantation for primary prevention following cardiac magnetic resonance including late gadolinium enhancement (LGE), the occurrence of appropriate ICD interventions for VT/VF was evaluated for 6.2 (median) years after ICD implantation. Overall, appropriate ICD interventions occurred in 43% with annual rates of 7.0% for appropriate interventions. Kaplan-Meier analysis demonstrated that the presence of LV apical aneurysm was significantly associated with a higher occurrence of appropriate interventions (annual rates 18.9% vs. 6.4%, P = 0.013). Similarly, patients with high LV mid-to-apex pressure gradient (annual rates 14.9% vs. 6.2%, P = 0.022) and presence of apical LGE (annual rates 10.9% vs. 4.0%, P = 0.001) experienced appropriate interventions more frequently. An aneurysm, high-pressure gradient, and LGE in an apex are associated with VT/VF. These characteristics in apex should be kept in mind when implanting ICD in Japanese HCM patients as a primary prevention.
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MESH Headings
- Aged
- Humans
- Male
- Aneurysm
- Cardiomyopathy, Hypertrophic/complications
- Cardiomyopathy, Hypertrophic/diagnosis
- Cardiomyopathy, Hypertrophic/diagnostic imaging
- Contrast Media
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Defibrillators, Implantable
- East Asian People
- Gadolinium
- Risk Factors
- Tachycardia, Ventricular/diagnosis
- Tachycardia, Ventricular/etiology
- Tachycardia, Ventricular/therapy
- Ventricular Fibrillation/etiology
- Ventricular Fibrillation/prevention & control
- Female
- Heart Aneurysm/diagnostic imaging
- Heart Aneurysm/etiology
- Heart Ventricles/diagnostic imaging
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Affiliation(s)
- Yasuki Hen
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan.
| | - Yuka Otaki
- Department of Radiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Nobuo Iguchi
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Ayako Takara
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Kaori Takada
- Department of Radiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Mitsuru Kanisawa
- Department of Radiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Haruhiko Machida
- Department of Radiology, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
| | - Kanki Inoue
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Itaru Takamisawa
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Morimasa Takayama
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-Cho, Fuchu-City, Tokyo, 183-0003, Japan
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Arbelo E, Protonotarios A, Gimeno JR, Arbustini E, Barriales-Villa R, Basso C, Bezzina CR, Biagini E, Blom NA, de Boer RA, De Winter T, Elliott PM, Flather M, Garcia-Pavia P, Haugaa KH, Ingles J, Jurcut RO, Klaassen S, Limongelli G, Loeys B, Mogensen J, Olivotto I, Pantazis A, Sharma S, Van Tintelen JP, Ware JS, Kaski JP. 2023 ESC Guidelines for the management of cardiomyopathies. Eur Heart J 2023; 44:3503-3626. [PMID: 37622657 DOI: 10.1093/eurheartj/ehad194] [Citation(s) in RCA: 316] [Impact Index Per Article: 316.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/26/2023] Open
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7
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Francia P, Ziacchi M, Adduci C, Ammendola E, Pieragnoli P, De Filippo P, Rapacciuolo A, Rella V, Migliore F, Viani S, Musumeci MB, Biagini E, Lovecchio M, Baldini R, Falasconi G, Autore C, Biffi M, Cecchi F. Clinical course of hypertrophic cardiomyopathy patients implanted with a transvenous or subcutaneous defibrillator. Europace 2023; 25:euad270. [PMID: 37724686 PMCID: PMC10507661 DOI: 10.1093/europace/euad270] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/09/2023] [Indexed: 09/21/2023] Open
Abstract
AIMS The implantable cardioverter-defibrillator (ICD) is a life-saving therapy in patients with hypertrophic cardiomyopathy (HCM) at risk of sudden cardiac death. Implantable cardioverter-defibrillator complications are of concern. The subcutaneous ICD (S-ICD) does not use transvenous leads and is expected to reduce complications. However, it does not provide bradycardia and anti-tachycardia pacing (ATP). The aim of this study was to compare appropriate and inappropriate ICD interventions, complications, disease-related adverse events and mortality between HCM patients implanted with a S- or transvenous (TV)-ICD. METHODS AND RESULTS Consecutive HCM patients implanted with a S- (n = 216) or TV-ICD (n = 211) were enrolled. Propensity-adjusted cumulative Kaplan-Meier curves and multivariate Cox proportional hazard ratios were used to compare 5-year event-free survival and the risk of events. The S-ICD patients had lower 5-year risk of appropriate (HR: 0.32; 95%CI: 0.15-0.65; P = 0.002) and inappropriate (HR: 0.44; 95%CI: 0.20-0.95; P = 0.038) ICD interventions, driven by a high incidence of ATP therapy in the TV-ICD group. The S- and TV-ICD patients experienced similar 5-year rate of device-related complications, albeit the risk of major lead-related complications was lower in S-ICD patients (HR: 0.17; 95%CI: 0.038-0.79; P = 0.023). The TV- and S-ICD patients displayed similar risk of disease-related complications (HR: 0.64; 95%CI: 0.27-1.52; P = 0.309) and mortality (HR: 0.74; 95%CI: 0.29-1.87; P = 0.521). CONCLUSION Hypertrophic cardiomyopathy patients implanted with a S-ICD had lower 5-year risk of appropriate and inappropriate ICD therapies as well as of major lead-related complications as compared to those implanted with a TV-ICD. Long-term comparative follow-up studies will clarify whether the lower incidence of major lead-related complications will translate into a morbidity or survival benefit.
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Affiliation(s)
- Pietro Francia
- Cardiology, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, University Sapienza, Rome, Italy
| | - Matteo Ziacchi
- Institute of Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Policlinico S.Orsola-Malpighi, Bologna, Italy
| | - Carmen Adduci
- Cardiology, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, University Sapienza, Rome, Italy
| | - Ernesto Ammendola
- Department of Translational Medical Sciences, University of Campania ‘Luigi Vanvitelli’, Monaldi Hospital, Naples, Italy
| | - Paolo Pieragnoli
- Careggi University Hospital, University of Florence, Florence, Italy
| | | | - Antonio Rapacciuolo
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Valeria Rella
- Department of Cardiovascular, Neural and Metabolic Sciences, IRCCS, Istituto Auxologico Italiano, San Luca Hospital, Milan, Italy
| | - Federico Migliore
- Department of Cardiac, Thoracic Vascular Sciences and Public Health University of Padova, Padova, Italy
| | - Stefano Viani
- Second Cardiology Division, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | - Maria Beatrice Musumeci
- Cardiology, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, University Sapienza, Rome, Italy
| | - Elena Biagini
- Institute of Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Policlinico S.Orsola-Malpighi, Bologna, Italy
| | | | - Rossella Baldini
- Cardiology, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, University Sapienza, Rome, Italy
| | - Giulio Falasconi
- Campus Clínic, University of Barcelona, Barcelona, Spain
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - Camillo Autore
- Cardiology, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, University Sapienza, Rome, Italy
| | - Mauro Biffi
- Institute of Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Policlinico S.Orsola-Malpighi, Bologna, Italy
| | - Franco Cecchi
- Careggi University Hospital, University of Florence, Florence, Italy
- Department of Cardiovascular, Neural and Metabolic Sciences, IRCCS, Istituto Auxologico Italiano, San Luca Hospital, Milan, Italy
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Bonaventura J, Maron BJ, Berul CI, Rowin EJ, Maron MS. Analysis of risk stratification and prevention of sudden death in pediatric patients with hypertrophic cardiomyopathy: Dilemmas and clarity. Heart Rhythm O2 2023; 4:506-516. [PMID: 37645261 PMCID: PMC10461211 DOI: 10.1016/j.hroo.2023.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023] Open
Abstract
Hypertrophic cardiomyopathy (HCM) has been considered the most common cause of sudden death (SD) in the young. However, introduction of implantable cardioverter-defibrillators (ICDs) in HCM has proved highly effective and the mainstay of preventing SD in children, adolescents, and adults by terminating malignant ventricular tachyarrhythmias. Nevertheless, ICD decision making is generally regarded as more difficult in pediatrics, and the strategy for selecting ICD patients from this population remains without consensus. Prospective studies in HCM children and adolescents have shown the American Heart Association/American College of Cardiology traditional major risk marker strategy to be reliable with >90% sensitivity in selecting patients for SD prevention. International data in >2000 young HCM patients assembled over 20 years who were stratified by major risk markers showed ICDs effectively prevented SD in 20%. Alternatively, novel quantitative risk scoring initiatives provide 5-year risk estimates that are potentially useful as adjunctive tools to facilitate discussion of prophylactic ICD risks vs benefit but are as yet unsupported by prospective outcome studies. Risk scoring strategies are characterized by reasonable discriminatory statistical power (C-statistic 0.69-0.76) for identifying patients with SD events but with relatively low sensitivity, albeit with specificity comparable with the risk marker strategy. While some reticence for obligating healthy-appearing young patients to lifelong device implants is understandable, underutilization of the ICD in high-risk children and adolescents can represent a lost opportunity for fulfilling the long-standing aspiration of SD prevention. This review provides a critical assessment of the current strengths and weaknesses of SD risk stratification strategies in young HCM patients in an effort to clarify clinical decision making in this challenging subpopulation.
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Affiliation(s)
- Jiri Bonaventura
- Department of Cardiology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic
- Hypertrophic Cardiomyopathy Center, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Barry J. Maron
- Hypertrophic Cardiomyopathy Center, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Charles I. Berul
- Division of Cardiology, Children’s National Hospital, Department of Pediatrics, George Washington University School of Medicine, Washington, DC
| | - Ethan J. Rowin
- Hypertrophic Cardiomyopathy Center, Lahey Hospital and Medical Center, Burlington, Massachusetts
| | - Martin S. Maron
- Hypertrophic Cardiomyopathy Center, Lahey Hospital and Medical Center, Burlington, Massachusetts
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9
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Maron BJ, Estes NAM, Rowin EJ, Maron MS, Reynolds MR. Development of the Implantable Cardioverter-Defibrillator: JACC Historical Breakthroughs in Perspective. J Am Coll Cardiol 2023; 82:353-373. [PMID: 37468191 DOI: 10.1016/j.jacc.2023.04.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/13/2023] [Accepted: 04/28/2023] [Indexed: 07/21/2023]
Abstract
Implantable cardioverter-defibrillators (ICDs) represent transformational technology, arguably the most significant advance in cardiovascular medicine in 50 years. The vision and determination of pioneers Mirowski and Mower was fundamental to this monumental achievement, working with limited resources and confronted by skepticism/criticism from medical establishment. The inventors were followed >35 years in which a multitude of innovative clinical scientists and engineers introduced technological advances leading to the sophisticated devices in practice today. A pivotal patient experiment with automated termination of ventricular fibrillation (1980) led to U.S. Food and Drug Administration approval. Transvenous lead systems converted ICDs from thoracotomy-based secondary prevention to primary prevention of sudden death devices in countless patients worldwide. ICD acceptance was solidified by prospective randomized controlled trials showing reduced mortality superior to antiarrhythmic drugs. ICDs eventually expanded from coronary disease to inherited arrhythmia conditions (eg, hypertrophic cardiomyopathy). The ICD breakthrough story demonstrates how significant progress is possible in medicine against all odds, given fearless imagination to pursue novel ideas that conflict with accepted wisdom.
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Affiliation(s)
- Barry J Maron
- Lahey Hospital and Medical Center, Burlington, Massachusetts, USA.
| | - N A Mark Estes
- Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Ethan J Rowin
- Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
| | - Martin S Maron
- Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
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10
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Maron MS, Rowin E, Spirito P, Maron BJ. Differing strategies for sudden death prevention in hypertrophic cardiomyopathy. Heart 2023; 109:589-594. [PMID: 36270782 PMCID: PMC10086464 DOI: 10.1136/heartjnl-2020-316693] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/01/2022] [Indexed: 11/04/2022] Open
Abstract
Sudden death (SD) has traditionally been the most visible and feared complication of hypertrophic cardiomyopathy (HCM). Substantial progress in reducing the occurrence of these catastrophic events represents a new paradigm in disease management. Prevention of SD in HCM has resulted from introduction of primary prevention ICDs that reliably terminate life-threatening ventricular tachyarrhythmias, as well as a matured risk stratification algorithm capable of reliably identifying those patients at highest risk. This initiative has been a major determinant of reducing HCM-related mortality to a low rate of 0.5%/year. In such a heterogeneous heart disease as HCM, no perfect risk stratification strategy is possible, and available approaches differ in terms of sensitivity and specificity for identifying patients with SD risk. Major cardiovascular societies, American Heart Association/American College of Cardiology in the USA and European Society of Cardiology in Europe have promoted different risk stratification guidelines creating the potential for judging SD risk in a given HCM patient differently based on commitment to a particular societal guideline or country of residence. In this review, we provide a critical but balanced assessment of these two divergent SD prevention strategies with regard to their respective strengths and weaknesses, as a guide to clinicians directly engaged in this important management issue.
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MESH Headings
- Humans
- Risk Assessment
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Death, Sudden, Cardiac/epidemiology
- Defibrillators, Implantable/adverse effects
- Tachycardia, Ventricular/etiology
- Cardiomyopathy, Hypertrophic/complications
- Cardiomyopathy, Hypertrophic/diagnosis
- Cardiomyopathy, Hypertrophic/therapy
- Risk Factors
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Affiliation(s)
- Martin S Maron
- Hypertrophic Cardiomyopathy Center, Lahey Medical Center, Burlington, Massachusetts, USA
| | - Ethan Rowin
- Hypertrophic Cardiomyopathy Center, Lahey Medical Center, Burlington, Massachusetts, USA
| | - Paolo Spirito
- Divisione di Cardiologia, Ospedali Galliera, Genoa, Italy
| | - Barry J Maron
- Hypertrophic Cardiomyopathy Center, Lahey Medical Center, Burlington, Massachusetts, USA
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Russo V, Ciabatti M, Brunacci M, Dendramis G, Santobuono V, Tola G, Picciolo G, Teresa LM, D'Andrea A, Nesti M. Opportunities and drawbacks of the subcutaneous defibrillator across different clinical settings. Expert Rev Cardiovasc Ther 2023; 21:151-164. [PMID: 36847583 DOI: 10.1080/14779072.2023.2184350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
INTRODUCTION The subcutaneous implantable cardioverter-defibrillator (S-ICD) is an established therapy for the prevention of sudden cardiac death (SCD) and an alternative to a transvenous implantable cardioverter-defibrillator system in selected patients. Beyond randomized clinical trials, many observational studies have described the clinical performance of S-ICD across different subgroups of patients. AREAS COVERED Our review aimed to describe the opportunities and drawbacks of the S-ICD, focusing on their use in special populations and across different clinical settings. EXPERT OPINION The choice to implant S-ICD should be based on the patient's tailored approach, which takes into account the adequate S-ICD screening at rest or during stress, the infective risk, the ventricular arrhythmia susceptibility, the progressive nature of the underlying disease, the work or sports activity, and the risk of lead-related complications.
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Affiliation(s)
- Vincenzo Russo
- Cardiology Unit, University of Campania 'Luigi Vanvitelli' - Monaldi Hospital, Naples, Italy
| | | | | | | | | | | | | | | | | | - Martina Nesti
- Cardiology Unit, San Donato Hospital, Arezzo (FI), Italy
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12
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Shi K, Huang S, Li X, Xu HY, Yang MX, Li Y, Guo YK, Yang ZG. Effect of Obesity on Left Ventricular Remodeling and Clinical Outcome in Chinese Patients With Hypertrophic Cardiomyopathy: Assessed by Cardiac MRI. J Magn Reson Imaging 2023; 57:800-809. [PMID: 35715897 DOI: 10.1002/jmri.28306] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Obesity is highly prevalent in patients with hypertrophic cardiomyopathy (HCM) and believed to influence its phenotype. PURPOSE To explore the effects of obesity on left ventricular (LV) remodeling and long-term clinical course in Chinese patients with HCM. STUDY TYPE Longitudinal. POPULATION A total of 247 patients with HCM classified according to body mass index (BMI) (normal weight: BMI = 18.0-22.9 kg/m2 [N = 90]; overweight: BMI = 23.0-24.9 kg/m2 [N = 58]; and obese: BMI ≥ 25 kg/m2 [N = 99]). FIELD STRENGTH/SEQUENCE 3.0 T/Balanced steady-state free precession sequence and phase-sensitive inversion recovery late gadolinium enhancement (LGE) sequence. ASSESSMENT LV function and geometry were measured. LV peak strain analysis was performed. The presence and percentage of LGE in the LV were recorded. The endpoints including heart failure, sudden cardiac death, and overall composite outcome were assessed during a median follow-up of 4.1 years (interquartile range, 3.0-6.2 years). STATISTICAL TESTS One-way analysis of variance, Kruskal-Wallis test, or chi-square test; Pearson correlation coefficient (r); multivariable linear regression analysis; Kaplan-Meier survival analysis; and Cox proportional hazards model analysis were conducted. A two-tailed P-value < 0.05 was considered statistically significant. RESULTS Obese patients exhibited a significant progressive increase in LV mass compared with normal-weight patients. The magnitude of all LV strain indices gradually and significantly decreased as BMI increased, whereas LV ejection fraction was not significantly different among BMI groups (P = 0.364). Multivariable linear regression analysis showed that obesity had a significant association with impaired strain indices as well as with indexed LV mass. Multivariable Cox model analysis retained obesity as an independent marker for future endpoints, and conveyed a > 3-fold increase in risk compared with patients with normal weight (hazard ratio, 3.04; 95% confidence interval, 1.07-6.57). DATA CONCLUSION Obesity is an important environmental modifier that is associated with adverse LV remodeling and is independently associated with future clinical outcomes in Chinese patients with HCM. LEVEL OF EVIDENCE 3 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Ke Shi
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shan Huang
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiang Li
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hua-Yan Xu
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Meng-Xi Yang
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Department of Radiology, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yuan Li
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ying-Kun Guo
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhi-Gang Yang
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Jin K. Using electronic health record data to improve understanding of the risk of mental disorders in patients diagnosed with hypertrophic cardiomyopathy. Eur J Prev Cardiol 2023; 30:82-84. [PMID: 36529915 DOI: 10.1093/eurjpc/zwac303] [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: 12/11/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Kai Jin
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, UK
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Arabadjian M, Yu G, Vorderstrasse A, Sherrid MV, Dickson VV. Quality of life and physical functioning in black and white adults with hypertrophic cardiomyopathy. Heart Lung 2022; 56:142-147. [PMID: 35901604 DOI: 10.1016/j.hrtlng.2022.07.001] [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: 12/28/2021] [Revised: 06/24/2022] [Accepted: 07/01/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Hypertrophic cardiomyopathy (HCM) is a common and clinically heterogeneous inherited cardiac disease. Quality of life (QOL) and physical functioning are important clinically but are underexplored in diverse populations with HCM. OBJECTIVES To examine predictors for and compare QOL and physical functioning in Black and White adults with HCM. METHODS We analyzed a sub-sample from a longitudinal prospective study on HCM. Eligibility criteria included self-identified Black and White adults (≥18 years) with clinical HCM. QOL was measured with the Minnesota Living with Heart Failure Questionnaire (MLWHF);physical functioning included age-adjusted exercise capacity and NYHA class. Covariates included HCM structural characteristics and common comorbidities. We analyzed data from 434 individuals, 57 (13.1%) of whom self-identified as Black/African American. RESULTS In this sample, the Black cohort had higher MLWHF scores, 31.2 (27.2) v. 23.9 (22.1), p=0.042, signifying worse QOL, but there were no intergroup differences when QOL was dichotomized. Mean metabolic equivalents (METs) on symptom-limited stress testing were similar, though the Black cohort was younger, 54.6 (13.4) v.62.5 (14.8) years, p=0.001. No one from the Black cohort achieved an "excellent-for-age" exercise capacity, and 64.1% had a "below-average-for-age" exercise capacity vs 47% in the White cohort, though this was not statistically significant, p=0.058. There was no difference between groups in advanced NYHA class. Female gender was associated with worse QOL and physical functioning irrespective of covariates. CONCLUSIONS This study is a starting point that underscores the need for a more comprehensive examination of well-being and physical functioning in Black populations with HCM.
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Affiliation(s)
- Milla Arabadjian
- New York University Rory Meyers College of Nursing, New York, NY, United States.
| | - Gary Yu
- New York University Rory Meyers College of Nursing, New York, NY, United States
| | - Allison Vorderstrasse
- University of Massachusetts Elaine Marieb College of Nursing, Amherst, MA, United States
| | - Mark V Sherrid
- Hypertrophic Cardiomyopathy Program, NYU Langone Health, New York, NY, United States
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15
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Francia P, Silvetti G, Cosentino P, Cristiano E, Adduci C, Tini G, Musumeci MB, Volpe M, Autore C. Relation of delayed intrinsicoid deflection of the QRS complex to sudden cardiac death in patients with hypertrophic cardiomyopathy. Int J Cardiol 2022; 366:42-47. [PMID: 35780930 DOI: 10.1016/j.ijcard.2022.06.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/15/2022] [Accepted: 06/27/2022] [Indexed: 11/30/2022]
Abstract
AIMS Predictors of sudden cardiac death (SCD) in patients with hypertrophic cardiomyopathy (HCM) do not include ECG variables. Intrinsicoid deflection (ID) represents the early ventricular depolarization on surface ECG. Delayed ID (DID) has been associated with sudden cardiac arrest (SCA) in the community. In a cohort of consecutive patients with HCM, we assessed whether DID predicts SCA or its surrogates. METHODS We reviewed ECG, clinical and follow-up data of 344 consecutive HCM patients. DID (ID ≥50 ms) was classified as lateral (leads I or aVL), inferior (leads II, III or aVF), and precordial (leads V5 or V6). The endpoint was a combination of SCD, resuscitated SCA or appropriate ICD intervention. RESULTS The SCA group was composed by 2 secondary prevention ICD recipients and 23 patients that reached the endpoint during follow-up (108 ± 73 months). SCA patients had more frequently massive LV hypertrophy (LVH) or end-stage HCM. ECG indexes of LVH were comparable between SCA and controls. SCA patients were more likely to have DID on ECG lateral leads I/aVL (72% vs 44%; p = 0.008). A non significant trend was observed for inferior and V5/V6 leads. DID I/aVL was associated with SCA in multivariate analysis after correction for massive LVH and end-stage disease (HR: 2.86; 95%CI: 1.14-7.13; p = 0.02). CONCLUSIONS In HCM patients DID is associated with increased risk of SCA. Its prognostic value extends beyond that of LVH. If confirmed in prospective studies, the prognostic power of this ECG marker could be used to refine risk prediction.
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Affiliation(s)
- Pietro Francia
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Giacomo Silvetti
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Pietro Cosentino
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Ernesto Cristiano
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Carmen Adduci
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Giacomo Tini
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Maria Beatrice Musumeci
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Massimo Volpe
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Camillo Autore
- Division Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy.
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16
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Patlolla SH, Schaff HV, Nishimura RA, Geske JB, Dunlay SM, Ommen SR. Sex and Race Disparities in Hypertrophic Cardiomyopathy: Unequal Implantable Cardioverter-Defibrillator Use During Hospitalization. Mayo Clin Proc 2022; 97:507-518. [PMID: 34893323 DOI: 10.1016/j.mayocp.2021.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 07/16/2021] [Accepted: 07/26/2021] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To evaluate if there are sex and race disparities in use of implantable cardioverter-defibrillator (ICD) devices for prevention of sudden cardiac death in patients with hypertrophic cardiomyopathy (HCM). PATIENTS AND METHODS Using the National Inpatient Sample from January 2003 through December 2014, we identified all adult admissions with a diagnosis of HCM and an ICD implantation. Race was classified as White versus non-White. Trends in ICD use, predictors of ICD implantation, device-related complications, hospitalization costs, and lengths of stay were evaluated. RESULTS Among a total of 23,535 adult hospitalizations for HCM, ICD implantation was performed in 3954 (16.8%) admissions. Over the study period, there was an overall increasing trend in ICD use (11.6% in 2003 to 17.0% in 2014, P<.001). Compared with admissions not receiving an ICD, those receiving an ICD had shorter median lengths of in-hospital stay but higher hospitalization costs (P<.001). Compared with men and White race, female sex (odds ratio, 0.72; 95% CI, 0.66 to 0.78; P<.001) and non-White race (odds ratio, 0.87; 95% CI, 0.79 to 0.96; P<.001) were associated with lower adjusted odds of receiving an ICD. Women and non-White hospitalizations had higher rates of device related complications, longer lengths of in-hospital stay, and higher hospitalization costs compared with men and White race, respectively (all P<.01). CONCLUSION Among HCM hospitalizations, ICD devices are underused in women and racial minorities independent of demographics, hospital characteristics, and comorbidities. Women and racial minorities also had higher rates of complications and greater resource use compared with men and those belonging to the White race, respectively.
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Affiliation(s)
- Sri Harsha Patlolla
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, MN; Center for Clinical and Translational Science, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN
| | | | - Rick A Nishimura
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Jeffrey B Geske
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Shannon M Dunlay
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Steve R Ommen
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
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Barlocco F. The friend within? The implantable cardioverter defibrillator between saving lives and chronically impairing them. Anthropol Med 2022; 29:61-75. [PMID: 35410540 DOI: 10.1080/13648470.2022.2041548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This article considers the way in which a medical technology, the implantable cardioverter defibrillator (ICD), by preventing fatal outcomes, in this case sudden death, deriving from cardiac diseases, and specifically hypertrophic cardiomyopathy, contributes to the development of a particular type of chronicity. While biomedicine celebrates technological advances in treatments and naturalises chronicity, focussing on life expectancy as a victory over the 'acute' aspects of the disease, the way in which patients live with the disease is left unquestioned. The article follows Smith-Morris's (2010) perspective in seeing chronicity as the never-ending process of identifying with one's disease, adding a focus on the role played by an embodied technology in relation to it. Based on participant observation in a clinical setting and interviews with clinicians, the article interrogates three key themes in the chronicity of cardiac patients implanted with an ICD: risk, quality of life and choice. The data shows a constant tension between managing a one-off potentially fatal 'acute' risk and life with serious disruptions due to the limitations imposed by the implanted device. The article argues that patients' resources for facing the life and identity disrupted by the disease are limited by ideas of what living a diseased body is, which acritically follow discourses of 'patient choice' and a 'technological imperative' to avoid risk.
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Affiliation(s)
- Fausto Barlocco
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy
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18
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van den Heuvel LM, Sarina T, Sweeting J, Yeates L, Bates K, Spinks C, O’Donnell C, Sears SF, McGeechan K, Semsarian C, Ingles J. A Prospective Longitudinal Study of Health-Related Quality of Life and Psychological Wellbeing after an Implantable Cardioverter Defibrillator in Patients with Genetic Heart Diseases. Heart Rhythm O2 2022; 3:143-151. [PMID: 35496461 PMCID: PMC9043389 DOI: 10.1016/j.hroo.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Genetic heart diseases (GHDs) can be clinically heterogeneous and pose an increased risk of sudden cardiac death (SCD). The implantable cardioverter-defibrillator (ICD) is a lifesaving therapy. Impacts on prospective and long-term psychological and health-related quality of life (HR-QoL) after ICD implant in patients with GHDs are unknown. Objectives Investigate the psychological functioning and HR-QoL over time in patients with GHDs who receive an ICD, and identify risk factors for poor psychological functioning and HR-QoL. Methods A longitudinal, prospective study design was used. Patients attending a specialized clinic, diagnosed with a GHD for which they received an ICD between May 2012 and January 2015, were eligible. Baseline surveys were completed prior to ICD implantation with 5-year follow-up after ICD implant. We measured psychological functioning (Hospital Anxiety Depression Scale, Florida Shock Anxiety Scale), HR-QoL (Short-Form 36v2), and device acceptance (Florida Patient Acceptance Scale). Results Forty patients were included (mean age 46.3 ± 14.2 years; 65.0% male). Mean psychological and HR-QoL measures were within normative ranges during follow-up. After 12 months, 33.3% and 19.4% of participants showed clinically elevated levels of anxiety and depression, respectively. Longitudinal mixed-effect analysis showed significant improvements from baseline to first follow-up for the overall cohort, with variability increasing after 36 months. Nontertiary education and female sex predicted worse mental HR-QoL and anxiety over time, while comorbidities predicted depression and worse physical HR-QoL. Conclusion While the majority of patients with a GHD adjust well to their ICD implant, a subset of patients experience poor psychological and HR-QoL outcomes.
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Maron BJ, Desai MY, Nishimura RA, Spirito P, Rakowski H, Towbin JA, Dearani JA, Rowin EJ, Maron MS, Sherrid MV. Management of Hypertrophic Cardiomyopathy. J Am Coll Cardiol 2022; 79:390-414. [DOI: 10.1016/j.jacc.2021.11.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 01/14/2023]
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Abstract
Hypertrophic cardiomyopathy (HCM), a relatively common, globally distributed, and often inherited myocardial disorder, transformed over the last several years into a treatable condition with the emergence of effective management options that alter natural history at all ages. Now available are a matured risk stratification algorithm selecting patients for prophylactic implantable defibrillators that prevent arrhythmic sudden death; low-risk, high-benefit surgical myectomy to reverse progressive heart failure symptoms due to left ventricular outflow obstruction; anticoagulation prophylaxis to prevent atrial fibrillation-mediated embolic stroke; and heart transplant for refractory end-stage disease in the absence of obstruction. Those strategies have resulted in reduction of HCM-related morbidity and reduction of mortality to 0.5% per year.
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Affiliation(s)
- Barry J Maron
- Division of Cardiology, Hypertrophic Cardiomyopathy Institute, Tufts Medical Center, Boston, Massachusetts 02111;
| | - Ethan J Rowin
- Division of Cardiology, Hypertrophic Cardiomyopathy Institute, Tufts Medical Center, Boston, Massachusetts 02111;
| | - Martin S Maron
- Division of Cardiology, Hypertrophic Cardiomyopathy Institute, Tufts Medical Center, Boston, Massachusetts 02111;
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21
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Del Rio-Pertuz G, Sethi P, Swaminath D, Argueta-Sosa E. Hypertrophic Cardiomyopathy in the Elderly: A Case Identified With Genetic Screening. J Investig Med High Impact Case Rep 2022; 10:23247096221109204. [PMID: 35778879 PMCID: PMC9251991 DOI: 10.1177/23247096221109204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is a hereditary disease with an autosomal dominant pattern of inheritance, that is caused by a mutation in one of several sarcomere genes that encodes components of the contractile system of the heart. Hypertrophic cardiomyopathy has been described as a disease that is more heavily diagnosed in the second decade of life, that may present with abnormal syncopal episodes or sudden cardiac death. However, with a better understanding of the genetic changes that occur in HCM and with improved imaging techniques, there has now been an increased recognition of a late-onset disease that can occur in the elderly population. We report a case of a 73-year-old woman who was found to have HCM after various clinical events took place.
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Affiliation(s)
- Gaspar Del Rio-Pertuz
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Pooja Sethi
- Division of Cardiology, Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Deephak Swaminath
- Division of Cardiology, Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Erwin Argueta-Sosa
- Division of Cardiology, Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
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22
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Merlo M, Grilli G, Cappelletto C, Masé M, Porcari A, Ferro MD, Gigli M, Stolfo D, Zecchin M, De Luca A, Mestroni L, Sinagra G. The Arrhythmic Phenotype in Cardiomyopathy. Heart Fail Clin 2022; 18:101-113. [PMID: 34776072 DOI: 10.1016/j.hfc.2021.07.011] [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] [Indexed: 11/23/2022]
Abstract
In the wide phenotypic spectrum of cardiomyopathies, sudden cardiac death (SCD) has always been the most visible and devastating disease complication. The introduction of implantable cardioverter-defibrillators for SCD prevention by the late 1980s has moved the question from how to whom we should protect from SCD, leaving clinicians with a measure of uncertainty regarding the most reliable option to guide identification of the highest-risk patients. In this review, we will go through all the available evidence in the field of arrhythmic expression and arrhythmic risk stratification in the different phenotypes of cardiomyopathies to provide practical suggestions in daily clinical management.
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Affiliation(s)
- Marco Merlo
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy.
| | - Giulia Grilli
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Chiara Cappelletto
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Marco Masé
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Aldostefano Porcari
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Matteo Dal Ferro
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Marta Gigli
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Davide Stolfo
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Massimo Zecchin
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Antonio De Luca
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
| | - Luisa Mestroni
- Cardiovascular Institute and Adult Medical Genetics Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Gianfranco Sinagra
- Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), University of Trieste, Italy
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23
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Francia P, Olivotto I, Lambiase PD, Autore C. Implantable cardioverter-defibrillators for hypertrophic cardiomyopathy: The Times They Are a-Changin'. Europace 2021; 24:1384-1394. [PMID: 34966939 DOI: 10.1093/europace/euab309] [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: 09/18/2021] [Accepted: 12/01/2021] [Indexed: 11/14/2022] Open
Abstract
The implantable cardioverter-defibrillator (ICD) is a life-saving therapy in patients with hypertrophic cardiomyopathy (HCM) at high risk of sudden cardiac death. The heterogeneity of clinical scenarios in HCM and the availability of ICDs with distinct characteristics emphasizes the need for selecting the right device for the right patient. There is growing awareness that unnecessarily complex devices can lead to short- and long-term complications without adding significant clinical benefits. Young patients have the greatest potential years of life gained from the ICD but are also most exposed to device-related complications. This increases the complexity of decision-making of ICD prescription in these often otherwise well patients in whom device selection should be tailored to preserve survival benefit without introducing morbidity. In the light of the multiple clinical phenotypes characterizing HCM, the present article offers evidence-based perspectives helpful in predicting the individual impact of the ICD and choosing the most appropriate device.
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Affiliation(s)
- Pietro Francia
- Division of Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
| | - Iacopo Olivotto
- Cardiomyopathy Unit, Careggi University Hospital. Dept of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Pier D Lambiase
- Institute of Cardiovascular Science, UCL Department of Cardiology, Barts Heart Centre, London, UK
| | - Camillo Autore
- Division of Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, Italy
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24
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Russo D, Sclafani M, Tini G, Musumeci MB, Arcari L, Limite LR, Francia P, Autore C. Prognostic implications of different clinical profiles in hypertrophic cardiomyopathy. Minerva Cardiol Angiol 2021; 70:189-206. [PMID: 34713676 DOI: 10.23736/s2724-5683.21.05752-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hypertrophic cardiomyopathy (HCM) is a myocardial genetic disease relatively common in the general population with heterogenous clinical presentation, natural history and prognosis. About 60% of HCM patients have a stable clinical course, while others may experience a variety of HCMrelated complications which follows relatively independent pathways, and that can be distinguished in different subgroups. These subgroups are represented by patients with left ventricular outflow tract obstruction; patients with end-stage disease and reduced or preserved systolic function; patients with apical hypertrophy; patients with apical aneurysm; patients with atrial fibrillation, patients at high risk of sudden death and patients with pre-clinical HCM. The purpose of this review is to describe each of these clinical profiles with its prognostic implications.
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Affiliation(s)
- Domitilla Russo
- Cardiology, Clinical and Molecular Medicine Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Matteo Sclafani
- Cardiology, Clinical and Molecular Medicine Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Giacomo Tini
- Cardiology, Clinical and Molecular Medicine Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Maria B Musumeci
- Cardiology, Clinical and Molecular Medicine Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Luca Arcari
- Cardiology Unit, Madre Giuseppina Vannini Hospital, Rome, Italy
| | - Luca R Limite
- Arrhythmia Unit and Electrophysiology Laboratories, Department of Cardiology and Cardiothoracic Surgery, San Raffaele Hospital, Milan, Italy
| | - Pietro Francia
- Cardiology, Clinical and Molecular Medicine Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Camillo Autore
- Cardiology, Clinical and Molecular Medicine Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy -
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25
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Abstract
It is important for both the patient and physician communities to have timely access to information recognizing rapid progress in the diagnosis and treatment of familiar but relatively uncommon cardiovascular diseases. Patients with 3 cardiovascular diseases (ie, hypertrophic cardiomyopathy, pulmonary arterial hypertension, and transthyretin (TTR) cardiac amyloidosis (ATTR)]), once considered rare without effective management options and associated with malignant prognosis, have now benefited substantially from the development of a variety of innovative therapeutic strategies. In addition, in each case, enhanced diagnostic testing has expanded the patient population and allowed for more widespread administration of contemporary treatments. In hypertrophic cardiomyopathy, introduction of implantable defibrillators to prevent sudden death as well as high-benefit:low-risk septal reduction therapies to reverse heart failure have substantially reduced morbidity and disease-related mortality (to 0.5% per year). For pulmonary arterial hypertension, a disease once characterized by a particularly grim prognosis, prospective randomized drug trials with aggressive single (or combined) pharmacotherapy have measurably improved survival and quality of life for many patients. In cardiac amyloidosis, development of disease-specific drugs can for the first time reduce morbidity and mortality, prominently with breakthrough ATTR-protein-stabilizing tafamidis. In conclusion, in less common and visible cardiovascular diseases, it is crucial to recognize substantial progress and achievement, given that penetration of such information into clinical practice and the patient community can be inconsistent. Diseases such as hypertrophic cardiomyopathy, pulmonary arterial hypertension, and ATTR cardiac amyloidosis, once linked to a uniformly adverse prognosis, are now associated with the opportunity for patients to experience satisfactory quality of life and extended longevity.
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Affiliation(s)
- Barry J. Maron
- Division of CardiologyHCM InstituteTufts Medical CenterBostonMA
| | - Martin S. Maron
- Division of CardiologyHCM InstituteTufts Medical CenterBostonMA
| | - Mathew S. Maurer
- Cardiac Amyloidosis CenterColumbia University Irving Medical CenterNew York–Presbyterian HospitalNew YorkNY
| | - Ethan J. Rowin
- Division of CardiologyHCM InstituteTufts Medical CenterBostonMA
| | - Bradley A. Maron
- Division of Cardiovascular MedicineBrigham & Women's Hospital and Harvard Medical SchoolBostonMA
| | - Nazzareno Galiè
- Alma Mater Studiorum University of BolognaBolognaItaly
- S. Orsola University HospitalBolognaItaly
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26
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Hourqueig M, Bouzille G, Mirabel M, Huttin O, Damy T, Labombarda F, Eicher JC, Charron P, Habib G, Réant P, Hagège A, Donal E. Hypertrophic cardiomyopathies requiring more monitoring for less atrial fibrillation-related complications: a clustering analysis based on the French registry on hypertrophic cardiomyopathy (REMY). Clin Res Cardiol 2021; 111:163-174. [PMID: 34043053 DOI: 10.1007/s00392-020-01797-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 12/16/2020] [Indexed: 11/25/2022]
Abstract
AIMS Defining the risk of atrial fibrillation (AF) in hypertrophic cardiomyopathy (HCM) patients is an important clinical and prognostic challenge. The aim of this study is to determine HCM phenogroups with different risk of AF occurrence at 5 years. METHODS AND RESULTS We applied retrospectively the Bayesian method, which can analyze a large number of variables, to differentiate phenogroups of patients with different risks of AF and prognoses across a French prospective on-going hospital-based registry of adult HCM patients (REMY). Clinical and imaging data were prospectively recorded, and patients were followed for 5 years. A total of 1431 HCM patients were recruited, including 1275 analyzed in the present study after exclusion criteria. The population included 412 women, 369 patients with obstructive HCM, and 252 implanted with an ICD. AF occurred in 167 (11.6%) patients during the 5 year follow-up. Three phenogroups were defined according to their common clinical and echocardiographic characteristics. Patients at the highest risk were oldest, more often female, with more frequent comorbidities, anteroposterior diameter of the left atrium was significantly greater, with diastolic dysfunction, outflow-tract obstruction, and mitral valve abnormality, and presented higher pulmonary artery pressure and/or right-ventricular dysfunction. These also had a higher risk of all-cause hospitalizations and death. CONCLUSION Based on a clustering analysis, three phenogroups of HCM according to the risk of AF occurrence can be identified. It can indicate which patients should be more monitored and/or treated, particular to prevent the risk of stroke.
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Affiliation(s)
- Marion Hourqueig
- Service de Cardiologie-Hôpital Pontchaillou, Univ Rennes, CHU Rennes, Inserm, LTSI-UMR 1099, F-35000, Rennes, France
| | - Guillaume Bouzille
- Service de Cardiologie-Hôpital Pontchaillou, Univ Rennes, CHU Rennes, Inserm, LTSI-UMR 1099, F-35000, Rennes, France
| | - Mariana Mirabel
- Cardio-Oncology, Assistance Publique-Hôpitaux de Paris-Centre Université de Paris, University of Paris, Paris, France
| | - Olivier Huttin
- Cardiology Department, CHU de Nancy, Hopitaux de Brabois, Nancy, France
| | - Thibaud Damy
- IMRB and Cardiology Department, Assistance Publique-Hopitaux de Paris, Hopital Henri-Mondor, GRC Amyloid Research Institute, 94000, Creteil, France
| | - Fabien Labombarda
- Cardiology Department, CHU de Caen, Hopital Cote de Nacre, Caen, France
| | | | - Philippe Charron
- Cardiology Department, Assistance Publique-Hôpitaux de Paris, APHP; Hôpital Pitié-Salpêtrière, Paris, France.,Sorbonne Université, INSERM, UMR_S 1166 and ICAN Institute for Cardiometabolism and Nutrition, Paris, France
| | - Gilbert Habib
- Cardiology Department, Assistance Publique-Hopitaux de Marseille, Hopital La Timone, Marseille, France
| | - Patricia Réant
- Cardiology Department, CHU de Bordeaux, Hopital du Haut Leveque, University de Bordeaux, INSERM 1045, IHU Lyric, CIC 1401, Pessac, France
| | - Albert Hagège
- Cardiology Department, CHU de Nancy, Hopitaux de Brabois, Nancy, France
| | - Erwan Donal
- Service de Cardiologie-Hôpital Pontchaillou, Univ Rennes, CHU Rennes, Inserm, LTSI-UMR 1099, F-35000, Rennes, France.
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27
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Evolution of risk stratification and sudden death prevention in hypertrophic cardiomyopathy: Twenty years with the implantable cardioverter-defibrillator. Heart Rhythm 2021; 18:1012-1023. [PMID: 33508516 DOI: 10.1016/j.hrthm.2021.01.019] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 01/14/2021] [Accepted: 01/20/2021] [Indexed: 11/21/2022]
Abstract
Hypertrophic cardiomyopathy (HCM) is a relatively common inherited myocardial disorder, once regarded as largely untreatable with ominous prognosis and most visibly as a common cause of sudden death (SD) in the young. Over the last several years, HCM has been transformed into a contemporary treatable disease with management options that significantly alter clinical course. With the use of implantable cardioverter-defibrillators (ICDs) in the HCM patient population, a new paradigm has emerged, with primary prevention device therapy reliably terminating potentially lethal ventricular tachyarrhythmias (3%-4% per year) and being largely responsible for a >10-fold decrease in disease-related mortality (to 0.5% per year), independent of age. An evidenced-based and guideline directed clinical risk stratification algorithm has evolved, including variables identified with cardiac magnetic resonance. One or more risk markers judged major and relevant within a patient's clinical profile can be considered sufficient to recommend a primary prevention implant (associated with a measure of physician judgment and shared decision-making). ICD decisions using the prospective individual risk marker strategy have been associated with 95% sensitivity for identifying patients who subsequently experienced appropriate ICD therapy, (albeit often delayed substantially for >5 or >10 years after implant), but without heart failure deterioration or HCM death following device intervention. A rigid mathematically derived statistical risk model proposed by the European Society of Cardiology is associated with low sensitivity (ie, 33%) for predicting SD events. Introduction of prophylactically inserted ICDs to HCM 20 years ago has significantly altered the clinical course and landscape of this disease. SD prevention has reduced HCM mortality significantly, making preservation of life and the potential for normal longevity a reality for most patients.
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28
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Capota R, Militaru S, Ionescu AA, Rosca M, Baicus C, Popescu BA, Jurcut R. Quality of life status determinants in hypertrophic cardiomyopathy as evaluated by the Kansas City Cardiomyopathy Questionnaire. Health Qual Life Outcomes 2020; 18:351. [PMID: 33126893 PMCID: PMC7602300 DOI: 10.1186/s12955-020-01604-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 10/20/2020] [Indexed: 01/17/2023] Open
Abstract
Purpose The present study evaluated how heart failure (HF) negatively impacts health-related quality of life (HRQoL) in hypertrophic cardiomyopathy (HCM) patients and explored the major clinical determinants associated with HRQoL impairment in this population. Methods This was a cross-sectional single-center study of health-related HRQoL that included 91 consecutive patients with HCM. Evaluation was performed based on a comprehensive protocol that included the recommended diagnostic studies, as well as administration of the translated validated version of the Kansas City Cardiomyopathy Questionnaire (KCCQ) (CV Outcomes Inc) as a health status measure. Results The cohort included 52 (57%) males, median age 58 (20–85) years. The median global KCCQ score was 67 (12.5–100) corresponding to a moderate impairment in HRQoL. There was an inverse correlation between the median global KCCQ score and NYHA class (Kendall’s tau b coefficient r − 0.33, p = 0.001). Patients with pulmonary hypertension (PHT), defined as resting pulmonary artery systolic pressure of ≥ 45 mmHg, presented a significantly worse HRQoL as compared to those without PHT (median KCCQ score 56.2 vs 77.5, p = 0.013). The KCCQ score mildly correlated with age (r − 0.18, p = 0.014), history of syncope (r − 0.18, p = 0.045), estimated glomerular filtration rate (eGFR) (r 0.31, p < 0.001), plasmatic creatinine (r − 0.18, p = 0.017) and urea levels (r − 0.27, p < 0.001), left ventricular (LV) end-systolic dimensions (r − 0.18, p = 0.014), maximal provoked intraventricular gradient (r 0.20, p = 0.039), LV ejection fraction (r 0.15, p = 0.04), average E/e′ (r − 0.16, p = 0.039), pulmonary acceleration time (r 0.21, p = 0.007), pulmonary artery systolic pressure (r − 0.20, p = 0.016). In ordinal regression, the independent predictors of HRQoL were NYHA class and eGFR. Conclusions Patients with HCM and HF present a moderate degree of alteration in HRQoL. This is especially true for patients with PHT and more severe functional impairment. Renal failure and NYHA class are potential markers of HRQoL in clinical practice.
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Affiliation(s)
- Razvan Capota
- Expert Center for Rare Genetic Cardiovascular Diseases, Emergency Institute for Cardiovascular Diseases "Prof.Dr.C.C.Iliescu", Sos. Fundeni 258, 022322, Bucharest, Romania
| | - Sebastian Militaru
- Expert Center for Rare Genetic Cardiovascular Diseases, Emergency Institute for Cardiovascular Diseases "Prof.Dr.C.C.Iliescu", Sos. Fundeni 258, 022322, Bucharest, Romania
| | - Alin Alexandru Ionescu
- Expert Center for Rare Genetic Cardiovascular Diseases, Emergency Institute for Cardiovascular Diseases "Prof.Dr.C.C.Iliescu", Sos. Fundeni 258, 022322, Bucharest, Romania
| | - Monica Rosca
- Expert Center for Rare Genetic Cardiovascular Diseases, Emergency Institute for Cardiovascular Diseases "Prof.Dr.C.C.Iliescu", Sos. Fundeni 258, 022322, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Bucharest, Romania
| | - Cristian Baicus
- Colentina Clinical Hospital, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Bucharest, Romania
| | - Bogdan Alexandru Popescu
- Expert Center for Rare Genetic Cardiovascular Diseases, Emergency Institute for Cardiovascular Diseases "Prof.Dr.C.C.Iliescu", Sos. Fundeni 258, 022322, Bucharest, Romania.,University of Medicine and Pharmacy "Carol Davila", Bucharest, Romania
| | - Ruxandra Jurcut
- Expert Center for Rare Genetic Cardiovascular Diseases, Emergency Institute for Cardiovascular Diseases "Prof.Dr.C.C.Iliescu", Sos. Fundeni 258, 022322, Bucharest, Romania. .,University of Medicine and Pharmacy "Carol Davila", Bucharest, Romania.
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29
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Rowin EJ, Burrows A, Madias C, Estes NM, Link MS, Maron MS, Maron BJ. Long-Term Outcome in High-Risk Patients With Hypertrophic Cardiomyopathy After Primary Prevention Defibrillator Implants. Circ Arrhythm Electrophysiol 2020; 13:e008123. [DOI: 10.1161/circep.119.008123] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
The implantable cardioverter-defibrillator (ICD) is effective for preventing sudden death in patients with hypertrophic cardiomyopathy. However, data on performance and complications of implanted ICDs over particularly long time periods to inform clinical practice is presently incomplete.
Methods:
The study cohort comprises 217 consecutive hypertrophic cardiomyopathy patients with primary prevention ICDs implanted before 2008 and followed for ≥10 years (mean 12±4; range to 31).
Results:
Patients were 38±17 years at implant and 45 (21%) experienced appropriate interventions terminating ventricular tachycardia/ventricular fibrillation. The majority of ICD discharges occurred ≥5 years after implant (29 patients; 64%), including ≥10 years in 16 patients (36%). Initial device therapy increased in frequency from 2.3% of patients at <1 year to 8.5% of patients at ≥10-years after implant (
P
=0.005). Inappropriate ICD shocks in 39 patients occurred most commonly <5 years after implant (54%) and decreased in frequency with increasing time from implant (from 9.7% of patients at <5 years to 3.8% at ≥10 years,
P
=0.02). Other major device complications including infection and lead fractures and dislodgement occurred in 27 patients (12%) but did not increase in frequency over follow-up after implant (
P
=0.47). There were no arrhythmic sudden death events among the 217 patients with ICD.
Conclusions:
In hypertrophic cardiomyopathy, after a primary prevention implant, ICD therapy often followed prolonged periods of device dormancy and increased progressively in frequency over time, including one-third of patients with initial therapy after 5 to 9 years, and an additional one-third of patients at ≥10 years. Frequency of inappropriate shocks decreased over follow-up, likely reflecting standard changes in device programming, while occurrence of device complications, such as lead fractures/infection, did not increase during follow-up.
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Affiliation(s)
- Ethan J. Rowin
- Hypertrophic Cardiomyopathy Institute (E.J.R., M.S.M., B.J.M.), Tufts Medical Center, Boston, MA
| | - Austin Burrows
- Cardiac Arrhythmia Center (A.B., C.M.), Tufts Medical Center, Boston, MA
| | - Christopher Madias
- Cardiac Arrhythmia Center (A.B., C.M.), Tufts Medical Center, Boston, MA
| | - N.A. Mark Estes
- Heart and Vascular Institute, University of Pittsburgh Medical Center, PA (N.A.M.E.)
| | - Mark S. Link
- Division of Cardiology, Department of Medicine, UT Southwestern Medical Center, Dallas TX (M.S.L.)
| | - Martin S. Maron
- Hypertrophic Cardiomyopathy Institute (E.J.R., M.S.M., B.J.M.), Tufts Medical Center, Boston, MA
| | - Barry J. Maron
- Hypertrophic Cardiomyopathy Institute (E.J.R., M.S.M., B.J.M.), Tufts Medical Center, Boston, MA
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30
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Ingles J. Psychological Issues in Managing Families with Inherited Cardiovascular Diseases. Cold Spring Harb Perspect Med 2020; 10:cshperspect.a036558. [PMID: 31548222 DOI: 10.1101/cshperspect.a036558] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The field of cardiovascular genetic counseling has evolved dramatically in recent years largely to manage the unique psychological needs of the inherited cardiovascular disease patient population. For many, there can be difficulty in coming to terms with a diagnosis, whether it be adjusting to lifestyle recommendations such as exclusion from competitive sports or living with a small but remarkable risk of sudden cardiac death. For those considered at risk of life-threatening ventricular arrhythmias, the decision to have an implantable cardioverter defibrillator can be difficult. Living with the device, especially for those who are young and those who receive multiple shocks, can precipitate psychological distress and poor adaptation to the device. Family members who experience a sudden cardiac death of a young relative have a significant risk of poor psychological outcomes. The roles of the cardiac genetic counselor in facilitating patients' adaptation to their diagnoses and management and recognizing when additional support from a clinical psychologist is needed are key to ensuring families receive the best possible care.
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Affiliation(s)
- Jodie Ingles
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Newtown, New South Wales NSW 2042, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales NSW 2000, Australia.,Department of Cardiology, Royal Prince Alfred Hospital, Camperdown, New South Wales NSW 2050, Australia
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31
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Prevention of Sudden Cardiac Death: Focus on the Subcutaneous Implantable Cardioverter-Defibrillator. High Blood Press Cardiovasc Prev 2020; 27:291-297. [DOI: 10.1007/s40292-020-00394-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 06/02/2020] [Indexed: 11/26/2022] Open
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32
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Recommendations of the current guidelines for implantable cardioverter-defibrillator implantation in patients with hypertrophic cardiomyopathy: Debate still exists. J Interv Card Electrophysiol 2020; 60:1-7. [DOI: 10.1007/s10840-020-00837-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/21/2020] [Indexed: 10/23/2022]
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33
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Miron A, Lafreniere-Roula M, Steve Fan CP, Armstrong KR, Dragulescu A, Papaz T, Manlhiot C, Kaufman B, Butts RJ, Gardin L, Stephenson EA, Howard TS, Aziz PF, Balaji S, Ladouceur VB, Benson LN, Colan SD, Godown J, Henderson HT, Ingles J, Jeewa A, Jefferies JL, Lal AK, Mathew J, Jean-St-Michel E, Michels M, Nakano SJ, Olivotto I, Parent JJ, Pereira AC, Semsarian C, Whitehill RD, Wittekind SG, Russell MW, Conway J, Richmond ME, Villa C, Weintraub RG, Rossano JW, Kantor PF, Ho CY, Mital S. A Validated Model for Sudden Cardiac Death Risk Prediction in Pediatric Hypertrophic Cardiomyopathy. Circulation 2020; 142:217-229. [PMID: 32418493 PMCID: PMC7365676 DOI: 10.1161/circulationaha.120.047235] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/29/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hypertrophic cardiomyopathy is the leading cause of sudden cardiac death (SCD) in children and young adults. Our objective was to develop and validate a SCD risk prediction model in pediatric hypertrophic cardiomyopathy to guide SCD prevention strategies. METHODS In an international multicenter observational cohort study, phenotype-positive patients with isolated hypertrophic cardiomyopathy <18 years of age at diagnosis were eligible. The primary outcome variable was the time from diagnosis to a composite of SCD events at 5-year follow-up: SCD, resuscitated sudden cardiac arrest, and aborted SCD, that is, appropriate shock following primary prevention implantable cardioverter defibrillators. Competing risk models with cause-specific hazard regression were used to identify and quantify clinical and genetic factors associated with SCD. The cause-specific regression model was implemented using boosting, and tuned with 10 repeated 4-fold cross-validations. The final model was fitted using all data with the tuned hyperparameter value that maximizes the c-statistic, and its performance was characterized by using the c-statistic for competing risk models. The final model was validated in an independent external cohort (SHaRe [Sarcomeric Human Cardiomyopathy Registry], n=285). RESULTS Overall, 572 patients met eligibility criteria with 2855 patient-years of follow-up. The 5-year cumulative proportion of SCD events was 9.1% (14 SCD, 25 resuscitated sudden cardiac arrests, and 14 aborted SCD). Risk predictors included age at diagnosis, documented nonsustained ventricular tachycardia, unexplained syncope, septal diameter z-score, left ventricular posterior wall diameter z score, left atrial diameter z score, peak left ventricular outflow tract gradient, and presence of a pathogenic variant. Unlike in adults, left ventricular outflow tract gradient had an inverse association, and family history of SCD had no association with SCD. Clinical and clinical/genetic models were developed to predict 5-year freedom from SCD. Both models adequately discriminated between patients with and without SCD events with a c-statistic of 0.75 and 0.76, respectively, and demonstrated good agreement between predicted and observed events in the primary and validation cohorts (validation c-statistic 0.71 and 0.72, respectively). CONCLUSION Our study provides a validated SCD risk prediction model with >70% prediction accuracy and incorporates risk factors that are unique to pediatric hypertrophic cardiomyopathy. An individualized risk prediction model has the potential to improve the application of clinical practice guidelines and shared decision making for implantable cardioverter defibrillator insertion. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT0403679.
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Affiliation(s)
- Anastasia Miron
- Division of Cardiology (A.M., T.P., S.M.), Hospital for Sick Children, Toronto, Ontario, Canada
| | - Myriam Lafreniere-Roula
- Ted Rogers Computational Program, Ted Rogers Center for Heart Research, The Hospital for Sick Children, University Health Network, Toronto, Ontario, Canada (M.L.-R., C.-P, S.F.)
| | - Chun-Po Steve Fan
- Ted Rogers Computational Program, Ted Rogers Center for Heart Research, The Hospital for Sick Children, University Health Network, Toronto, Ontario, Canada (M.L.-R., C.-P, S.F.)
| | - Katey R. Armstrong
- Division of Pediatric Cardiology, Department of Pediatrics, British Columbia Children’s Hospital, Vancouver, Canada (K.R.A.)
| | - Andreea Dragulescu
- Department of Cardiology (A.D., V.B.L., L.N.B., A.J., E.J.-St-M.), Hospital for Sick Children, Toronto, Ontario, Canada
| | - Tanya Papaz
- Division of Cardiology (A.M., T.P., S.M.), Hospital for Sick Children, Toronto, Ontario, Canada
| | - Cedric Manlhiot
- Department of Pediatrics, Johns Hopkins Medical Center, Baltimore, MD (C.M.)
| | - Beth Kaufman
- Department of Pediatrics, Lucile Packard Children’s Hospital Stanford, Palo Alto, CA (B.K.)
| | - Ryan J. Butts
- Division of Pediatric Cardiology, Department of Pediatrics, Children’s Medical Center of Dallas, TX (R.J.B.)
| | - Letizia Gardin
- Department of Cardiology, Children’s Hospital of Eastern Ontario, Ottawa, Ontario, Canada (L.G.)
| | - Elizabeth A. Stephenson
- Department of Cardiology, Labatt Family Heart Center, Hospital for Sick Children, University of Toronto, Ontario, Canada (E.A.S., S.M.)
| | - Taylor S. Howard
- Department of Pediatrics, Section of Pediatric Cardiology, Baylor College of Medicine, Texas Children’s Hospital (T.S.H.)
| | - Pete F. Aziz
- Center for Pediatric and Congenital Heart Disease, Pediatric Electrophysiology and Pacing, Cleveland Clinic Children’s Hospital, OH (P.F.A.)
| | - Seshadri Balaji
- Department of Pediatrics, Division of Cardiology, Oregon Health & Science University, OHSU Doernbecher Children’s Hospital, Portland (S.B.)
| | - Virginie Beauséjour Ladouceur
- Department of Cardiology (A.D., V.B.L., L.N.B., A.J., E.J.-St-M.), Hospital for Sick Children, Toronto, Ontario, Canada
| | - Lee N. Benson
- Department of Cardiology (A.D., V.B.L., L.N.B., A.J., E.J.-St-M.), Hospital for Sick Children, Toronto, Ontario, Canada
| | - Steven D. Colan
- Department of Cardiology, Boston Children’s Hospital, MA (S.D.C.)
| | - Justin Godown
- Department of Pediatrics, Division of Pediatric Cardiology, Monroe Carrell Jr Children’s Hospital at Vanderbilt, Nashville, TN (J.G.)
| | | | - Jodie Ingles
- Agnes Ginges Center for Molecular Cardiology at Centenary Institute, The University of Sydney, New South Wales, Australia (J.I., C.S.)
| | - Aamir Jeewa
- Department of Cardiology (A.D., V.B.L., L.N.B., A.J., E.J.-St-M.), Hospital for Sick Children, Toronto, Ontario, Canada
| | - John L. Jefferies
- Division of Adult Cardiovascular Diseases, University of Tennessee Health Science Center, Memphis (J.L.J.)
| | - Ashwin K. Lal
- Division of Pediatric Cardiology, University of Utah Primary Children’s Hospital, Salt Lake City (A.K.L.)
| | - Jacob Mathew
- Department of Cardiology, The Royal Children’s Hospital, Melbourne, Victoria, Australia (J.M., R.G.W.)
| | - Emilie Jean-St-Michel
- Department of Cardiology (A.D., V.B.L., L.N.B., A.J., E.J.-St-M.), Hospital for Sick Children, Toronto, Ontario, Canada
| | - Michelle Michels
- Department of Cardiology, Thoraxcenter, Erasmus MC Rotterdam, South Holland, Netherlands (M.M.)
| | - Stephanie J. Nakano
- Department of Pediatrics, Division of Cardiology, Children’s Hospital Colorado, Aurora (S.J.N.)
| | - Iacopo Olivotto
- Referral Center for Cardiomyopathies, Careggi University Hospital, Florence, Italy (I.O.)
| | - John J. Parent
- Department of Pediatrics, Riley Children’s Hospital, Indianapolis, IN (J.J.P.)
| | - Alexandre C. Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (A.C.P.)
| | - Christopher Semsarian
- Agnes Ginges Center for Molecular Cardiology at Centenary Institute, The University of Sydney, New South Wales, Australia (J.I., C.S.)
| | | | | | - Mark W. Russell
- Pediatrics, C.S. Mott Children’s Hospital, Ann Arbor, MI (M.W.R.)
| | - Jennifer Conway
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children’s Hospital, Edmonton, AB, Canada (J.C.)
| | - Marc E. Richmond
- Division of Pediatric Cardiology, Department of Pediatrics, Columbia University College of Physicians and Surgeons/Morgan Stanley Children’s Hospital, New York, NY (M.E.R.)
| | - Chet Villa
- The Heart Institute, Cincinnati Children’s Hospital, OH (S.G.W., C.V.)
| | - Robert G. Weintraub
- Department of Cardiology, The Royal Children’s Hospital, Melbourne, Victoria, Australia (J.M., R.G.W.)
- Murdoch Children’s Research Institute, University of Melbourne, Victoria, Australia (R.G.W.)
| | - Joseph W. Rossano
- Division of Cardiology, Children’s Hospital of Philadelphia, PA (J.W.R.)
| | - Paul F. Kantor
- Division of Cardiology, Children’s Hospital of Los Angeles, CA (P.F.K.)
| | - Carolyn Y. Ho
- Cardiovascular Division, Brigham and Women’s Hospital, Boston, MA (C.Y.H.)
| | - Seema Mital
- Division of Cardiology (A.M., T.P., S.M.), Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Cardiology, Labatt Family Heart Center, Hospital for Sick Children, University of Toronto, Ontario, Canada (E.A.S., S.M.)
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Maron MS, Rowin EJ, Wessler BS, Mooney PJ, Fatima A, Patel P, Koethe BC, Romashko M, Link MS, Maron BJ. Enhanced American College of Cardiology/American Heart Association Strategy for Prevention of Sudden Cardiac Death in High-Risk Patients With Hypertrophic Cardiomyopathy. JAMA Cardiol 2020; 4:644-657. [PMID: 31116360 DOI: 10.1001/jamacardio.2019.1391] [Citation(s) in RCA: 215] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Importance Strategies for reliable selection of high-risk patients with hypertrophic cardiomyopathy (HCM) for prevention of sudden cardiac death (SCD) with implantable cardioverter/defibrillators (ICDs) are incompletely resolved. Objective To assess the reliability of SCD prediction methods leading to prophylactic ICD recommendations to reduce the number of SCDs occurring in patients with HCM. Design, Setting, and Participants In this observational longitudinal study, 2094 predominantly adult patients with HCM consecutively evaluated over 17 years in a large HCM clinical center were studied. All patients underwent prospective ICD decision making relying on individual major risk markers derived from the HCM literature and an enhanced American College of Cardiology/American Heart Association (ACC/AHA) guidelines-based risk factor algorithm with complete clinical outcome follow-up. Data were collected from June 2017 to February 2018, and data were analyzed from February to July 2018. Main Outcomes and Measures Arrhythmic SCD or appropriate ICD intervention for ventricular tachycardia or ventricular fibrillation. Results Of the 2094 study patients, 1313 (62.7%) were male, and the mean (SD) age was 51 (17) years. Of 527 patients with primary prevention ICDs implanted based on 1 or more major risk markers, 82 (15.6%) experienced device therapy-terminated ventricular tachycardia or ventricular fibrillation episodes, which exceeded the 5 HCM-related SCDs occurring among 1567 patients without ICDs (0.3%), including 2 who declined device therapy, by 49-fold (95% CI, 20-119; P = .001). Cumulative 5-year probability of an appropriate ICD intervention was 10.5% (95% CI, 8.0-13.5). The enhanced ACC/AHA clinical risk factor strategy was highly sensitive for predicting SCD events (range, 87%-95%) but less specific for identifying patients without SCD events (78%). The C statistic calculated for enhanced ACC/AHA guidelines was 0.81 (95% CI, 0.77-0.85), demonstrating good discrimination between patients who did or did not experience an SCD event. Compared with enhanced ACC/AHA risk factors, the European Society of Cardiology risk score retrospectively applied to the study patients was much less sensitive than the ACC/AHA criteria (34% [95% CI, 22-44] vs 95% [95% CI, 89-99]), consistent with recognizing fewer high-risk patients. Conclusions and Relevance A systematic enhanced ACC/AHA guideline and practice-based risk factor strategy prospectively predicted SCD events in nearly all at-risk patients with HCM, resulting in prophylactically implanted ICDs that prevented many catastrophic arrhythmic events in this at-risk population.
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Affiliation(s)
- Martin S Maron
- Hypertrophic Cardiomyopathy Center and Research Institute, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Ethan J Rowin
- Hypertrophic Cardiomyopathy Center and Research Institute, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Benjamin S Wessler
- Predictive Analytics and Comparative Effectiveness Center, Institute for Clinical Research and Health Policy Studies, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Paula J Mooney
- Hypertrophic Cardiomyopathy Center and Research Institute, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Amber Fatima
- Hypertrophic Cardiomyopathy Center and Research Institute, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Parth Patel
- Hypertrophic Cardiomyopathy Center and Research Institute, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Benjamin C Koethe
- Predictive Analytics and Comparative Effectiveness Center, Institute for Clinical Research and Health Policy Studies, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Mikhail Romashko
- Hypertrophic Cardiomyopathy Center and Research Institute, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Mark S Link
- Division of Cardiology, Department of Internal Medicine, University of Texas, Dallas.,Southwestern Medical Center, Dallas, Texas
| | - Barry J Maron
- Hypertrophic Cardiomyopathy Center and Research Institute, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
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Tao L, Shi J, Huang X, Hua F, Yang L. Identification of a lncRNA-miRNA-mRNA network based on competitive endogenous RNA theory reveals functional lncRNAs in hypertrophic cardiomyopathy. Exp Ther Med 2020; 20:1176-1190. [PMID: 32742356 DOI: 10.3892/etm.2020.8748] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
Hypertrophic cardiomyopathy (HCM) is an autosomal dominant disease that affects 1 in every 200 people in the general population, leading to cardiac ischemia, heart failure and increased risk of sudden death. Recently, accumulating evidence has suggested that long noncoding RNAs (lncRNAs) may serve specific roles in various biological processes and participate in the pathology of various diseases, including HCM. Although a large number of lncRNAs have been detected, the functions of lncRNAs in HCM are still unknown. In the present study, a global triple network based on competitive endogenous RNA (ceRNA) theory was constructed using data from the National Center for Biotechnology Information Gene Expression Omnibus. Furthermore, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses of mRNAs in the lncRNA-microRNA (miRNA)-mRNA network were performed using the Cytoscape plugins, BiNGO and Database. The lncRNA-miRNA-mRNA network was composed of 30 lncRNA nodes, 94 mRNA nodes and 8 miRNA nodes. Subsequently, hub nodes and the number of relationship pairs were analyzed and showed that 5 lncRNAs (ENST00000597346.1, ENST00000458178.1, ENST00000544461.1, ENST00000567093.1 and ENST00000571219.1) were closely related to HCM. Cluster module analysis and Random Walk with Restart of the ceRNA network further confirmed the potential role of two lncRNAs (ENST00000458178.1 and ENST00000567093.1) in HCM. The present study provides a new strategy for identifying potential pathways associated with HCM or other diseases. Furthermore, lncRNA-miRNA pairs may be regarded as candidate diagnostic biomarkers or potential therapeutic targets for HCM.
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Affiliation(s)
- Lichan Tao
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Jia Shi
- Department of Neurosurgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Xiaoli Huang
- Department of Endocrinology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Fei Hua
- Department of Endocrinology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
| | - Ling Yang
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
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Liu J, Wu G, Zhang C, Ruan J, Wang D, Zhang M, Wang L, Yang Y, Li X, Wang Y, Hui R, Zou Y, Kang L, Wang J, Song L. Improvement in sudden cardiac death risk prediction by the enhanced American College of Cardiology/American Heart Association strategy in Chinese patients with hypertrophic cardiomyopathy. Heart Rhythm 2020; 17:1658-1663. [PMID: 32311532 DOI: 10.1016/j.hrthm.2020.04.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/21/2020] [Accepted: 04/02/2020] [Indexed: 01/29/2023]
Abstract
BACKGROUND The lack of validated and effective sudden cardiac death (SCD) risk prediction methods is the biggest barrier to perform the lifesaving treatment with a prophylactic implantable cardioverter-defibrillator in Chinese patients with hypertrophic cardiomyopathy (HCM). OBJECTIVE This study aimed to evaluate the efficacy of 3 existing SCD risk prediction methods recommended by the 2011 American College of Cardiology Foundation and American Heart Association (ACCF/AHA) guideline, the 2014 European Society of Cardiology (ESC) guideline, and the 2019 enhanced American College of Cardiology (ACC)/AHA strategy in Chinese patients with HCM. METHODS The present study consisted of 1369 consecutive adult patients with HCM without a history of SCD events. The primary end point was a composite of SCD and equivalent events, namely, resuscitation from cardiac arrest and appropriate implantable cardioverter-defibrillator shock therapy for ventricular tachycardia or fibrillation. RESULTS During follow-up of 3.2 ± 2.4 years, 39 patients reached SCD end points, of whom 26 (66.7%) were correctly predicted as those at a high risk of SCD by using methods recommended by the 2019 enhanced ACC/AHA strategy, 20 (51.3%) by the 2011 ACCF/AHA guideline, but only 5 (12.8%) by the 2014 ESC guideline. The 2019 enhanced ACC/AHA strategy showed a higher C-statistic (0.647) for SCD prediction than did the 2011 ACCF/AHA guideline (0.598) and 2014 ESC guideline (0.605) and resulted in the correct reclassification of SCD risk when compared with the 2011 ACCF/AHA guideline (net reclassification index 0.113; P = .074) and 2014 ESC guideline (net reclassification index 0.245; P = .038). CONCLUSION The 2019 enhanced ACC/AHA strategy showed better predictive performance for SCD risk stratification in Chinese patients with HCM, with a notably high sensitivity.
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Affiliation(s)
- Jie Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guixin Wu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ce Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jieyun Ruan
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dong Wang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Mo Zhang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Limei Wang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yaoyao Yang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xinrong Li
- The National Engineering Research Centre for Miniaturized Detection Systems, Shaanxi Lifegen Co. Ltd, Shaanxi, China
| | - Yilu Wang
- Intensive Care Unit, Emergency General Hospital, Beijing, China
| | - Rutai Hui
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yubao Zou
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Lianming Kang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
| | - Jizheng Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Lei Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
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Hen Y, Iguchi N, Kanisawa M, Takada K, Machida H, Takara A, Teraoka K, Takamisawa I, Takayama M, Yoshikawa T. Additive prognostic significance of ejection fraction for ESC risk model in hypertrophic cardiomyopathy patients. Heart Vessels 2020; 35:391-398. [PMID: 31482217 DOI: 10.1007/s00380-019-01496-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/23/2019] [Indexed: 12/14/2022]
Abstract
The European Society of Cardiology (ESC) clinical risk model is reported in predicting sudden death of hypertrophic cardiomyopathy (HCM). We examined the validity of this model and investigated the significance of ejection fraction (EF) in predicting the prognosis using ESC risk model in HCM patients. 305 HCM patients (198 males) were followed (median follow-up 4.8 years) for life-threatening arrhythmic events (sudden death, aborted sudden death, sustained VT/VF, appropriate ICD intervention for VT/VF) and were divided using ESC risk model into low- (Group L), intermediate- (Group I) and high- (Group H) risk groups. There was a significant difference in the events rate among the 3 groups (L, 0.9%/year; I, 3.9%/year; H, 6.8%/year; log-rank p < 0.001) in all study patients. Reduced EF (<50%) was identified in 27 (8.9%) cases. There was a significant difference in the events rate among the 3 groups in patients with reduced EF (L, 2.4%/year; I, 4.9%/year; H, 16.1%/year; log-rank p = 0.025). There was a significant difference in the events rate among 2 groups in patients stratified as Group H (preserved EF, 3.1%/year vs. reduced EF, 16.1%/year; log-rank p = 0.041). ESC risk model precisely predicts life-threatening events in patients with HCM. Adding EF to ESC risk model are useful for further risk stratification of life-threatening arrhythmic events.
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MESH Headings
- Aged
- Cardiomyopathy, Hypertrophic/complications
- Cardiomyopathy, Hypertrophic/diagnosis
- Cardiomyopathy, Hypertrophic/mortality
- Cardiomyopathy, Hypertrophic/physiopathology
- Databases, Factual
- Death, Sudden, Cardiac/etiology
- Decision Support Techniques
- Female
- Heart Rate
- Humans
- Magnetic Resonance Imaging
- Male
- Middle Aged
- Predictive Value of Tests
- Prognosis
- Reproducibility of Results
- Retrospective Studies
- Risk Assessment
- Risk Factors
- Stroke Volume
- Tachycardia, Ventricular/diagnosis
- Tachycardia, Ventricular/etiology
- Tachycardia, Ventricular/mortality
- Tachycardia, Ventricular/physiopathology
- Time Factors
- Ventricular Fibrillation/diagnosis
- Ventricular Fibrillation/etiology
- Ventricular Fibrillation/mortality
- Ventricular Fibrillation/physiopathology
- Ventricular Function, Left
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Affiliation(s)
- Yasuki Hen
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-City, Tokyo, 183-0003, Japan.
| | - Nobuo Iguchi
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Mitsuru Kanisawa
- Department of Radiology, Sakakibara Heart Institute, Fuchu-City, Japan
| | - Kaori Takada
- Department of Radiology, Sakakibara Heart Institute, Fuchu-City, Japan
| | - Haruhiko Machida
- Department of Radiology, Kyorin University School of Medicine, Mitaka, Japan
| | - Ayako Takara
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Kunihiko Teraoka
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Itaru Takamisawa
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Morimasa Takayama
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-City, Tokyo, 183-0003, Japan
| | - Tsutomu Yoshikawa
- Department of Cardiology, Sakakibara Heart Institute, 3-16-1 Asahi-cho, Fuchu-City, Tokyo, 183-0003, Japan
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38
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Finocchiaro G, Sheikh N, Biagini E, Papadakis M, Maurizi N, Sinagra G, Pelliccia A, Rapezzi C, Sharma S, Olivotto I. The electrocardiogram in the diagnosis and management of patients with hypertrophic cardiomyopathy. Heart Rhythm 2019; 17:142-151. [PMID: 31349064 DOI: 10.1016/j.hrthm.2019.07.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Indexed: 12/20/2022]
Abstract
In an era of rapid technological development and evolving diagnostic possibilities, the electrocardiogram (ECG) is living an authentic "renaissance" in myocardial diseases. To date, the ECG remains an irreplaceable first step when evaluating patients with hypertrophic cardiomyopathy (HCM) and an abnormal ECG may be the only manifestation of disease at an early stage. In some instances, specific electrical anomalies may differentiate HCM from phenocopies such as cardiac amyloidosis and glycogen storage diseases. The exponential growth in knowledge of the complexity of HCM has led to new challenges in terms of early identification of the disease, differential diagnosis, risk stratification, and development of targeted therapies. In this scenario, the apparently "old fashioned" ECG and the array of ECG-based techniques, ranging from Holter monitoring and loop recorders to exercise testing, are as contemporary as ever. In the present review, we discuss the current role of the ECG in the diagnosis and management of HCM, focusing on various clinical settings where its appropriate use and interpretation can make a difference.
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Affiliation(s)
| | - Nabeel Sheikh
- Cardiothoracic Centre, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Elena Biagini
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Michael Papadakis
- Cardiology Clinical and Academic Group, St George's, University of London, and St George's University Hospitals NHS Foundation Trust, London, United Kingdom
| | - Nicolo' Maurizi
- Cardiomyopathy Unit, Careggi University Hospital, Florence, Italy
| | | | | | - Claudio Rapezzi
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Sanjay Sharma
- Cardiology Clinical and Academic Group, St George's, University of London, and St George's University Hospitals NHS Foundation Trust, London, United Kingdom
| | - Iacopo Olivotto
- Cardiomyopathy Unit, Careggi University Hospital, Florence, Italy
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Abstract
Hypertrophic cardiomyopathy (HCM) is a worldwide genetic heart disease and a common cause of sudden death in the young. Penetration of the implantable cardioverter-defibrillator (ICD) into this patient population over the past 20 years has made accurate selection of patients for primary prevention ICDs a priority. Consequently, a new paradigm has emerged in the management of this complex disease with ICD therapy responsible for a substantial decrease in overall HCM-related mortality (to 0.5%/y) and independent of patient age. Selection of candidates for ICDs has matured substantially with the formulation of an enhanced risk stratification algorithm. One or more contemporary risk markers judged major within a given patient’s clinical profile, in association with physician judgment and shared decision-making, is sufficient to consider a primary prevention ICD implant. An enhanced American College of Cardiology/American Heart Association risk factor model (including new contrast-magnetic resonance–based markers, such as left ventricular apical aneurysm) used prospectively to make ICD decisions proved to be 95% sensitive for identifying patients who would experience ≥1 appropriate device therapies terminating ventricular tachycardia/fibrillation. The number of HCM patients required to treat with ICDs to save 1 patient with abolition of lethal ventricular tachyarrhythmias was 6:1, similar to randomized defibrillator trials in other cardiomyopathies. In contrast to patients with ischemic heart disease, after ICD shock HCM patients rarely experience transformation to heart failure deterioration or sudden arrhythmic death. The mathematically derived risk score model proposed by the European Society of Cardiology was inferior for identifying high-risk patients susceptible to arrhythmic sudden death with a sensitivity of only 33%, leaving many patients exposed to the possibility of sudden death without ICDs. In conclusion, introduction of the ICD associated with a matured risk stratification algorithm has altered management strategy and clinical course of many HCM patients, making the likelihood of sudden death prevention a reality and fulfilling the aspiration of preservation of life and reduced mortality for this vulnerable patient population.
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Affiliation(s)
- Barry J. Maron
- From the HCM Institute, Division of Cardiology, Tufts Medical Center, Boston, MA
| | - Ethan J. Rowin
- From the HCM Institute, Division of Cardiology, Tufts Medical Center, Boston, MA
| | - Martin S. Maron
- From the HCM Institute, Division of Cardiology, Tufts Medical Center, Boston, MA
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40
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Rowin EJ, Maron MS, Maron BJ. Response by Rowin et al to Letter Regarding Article, "Clinical Profile and Consequences of Atrial Fibrillation in Hypertrophic Cardiomyopathy". Circulation 2019; 137:2541-2542. [PMID: 29866781 DOI: 10.1161/circulationaha.118.034857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Ethan J Rowin
- Hypertrophic Cardiomyopathy Center, Division of Cardiology, Tufts Medical Center, Boston, MA
| | - Martin S Maron
- Hypertrophic Cardiomyopathy Center, Division of Cardiology, Tufts Medical Center, Boston, MA
| | - Barry J Maron
- Hypertrophic Cardiomyopathy Center, Division of Cardiology, Tufts Medical Center, Boston, MA
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41
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Kay GN. Can positron emission tomography help stratify the risk of sudden cardiac death in patients with hypertrophic cardiomyopathy? J Nucl Cardiol 2019; 26:1135-1137. [PMID: 29761308 DOI: 10.1007/s12350-018-1299-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/04/2018] [Indexed: 12/23/2022]
Affiliation(s)
- G Neal Kay
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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Adduci C, Ali H, Francia P, Mantovani R, Palano F, Lupo P, Foresti S, De Ambroggi G, Cappato R. The subcutaneous implantable cardioverter-defibrillator: Current trends in clinical practice between guidelines and technology progress. Eur J Intern Med 2019; 65:6-11. [PMID: 31005441 DOI: 10.1016/j.ejim.2019.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/23/2019] [Accepted: 04/09/2019] [Indexed: 01/21/2023]
Abstract
The subcutaneous implantable cardioverter defibrillator (S-ICD) is a valuable alternative to the conventional trans-venous ICD (TV-ICD) for the prevention of sudden cardiac death (SCD). Prospective registries showed that the S-ICD is safe and effective in treating ventricular tachyarrhythmias in high-risk patients without pacing indications. While in earlier studies patients implanted with S-ICDs were young and mostly affected by channelopathies, contemporary S-ICD cohorts include patients with severely impaired left ventricular function and significant comorbidities. This review focuses on S-ICD evidence-based use and highlights current gaps between guidelines recommendations and real-world clinical practice.
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Affiliation(s)
- Carmen Adduci
- Department of Clinical and Molecular Medicine, Sapienza University, St Andrea Hospital, Rome, Italy.
| | - Hussam Ali
- Arrhythmia & EP Research Center, IRCCS Humanitas Research & University Hospital, Rozzano, Milan, Italy
| | - Pietro Francia
- Department of Clinical and Molecular Medicine, Sapienza University, St Andrea Hospital, Rome, Italy
| | - Riccardo Mantovani
- Arrhythmia & EP Research Center, IRCCS Humanitas Research & University Hospital, Rozzano, Milan, Italy
| | - Francesca Palano
- Department of Clinical and Molecular Medicine, Sapienza University, St Andrea Hospital, Rome, Italy
| | - Pierpaolo Lupo
- Arrhythmia & EP Research Center, IRCCS Humanitas Research & University Hospital, Rozzano, Milan, Italy
| | - Sara Foresti
- Arrhythmia & EP Research Center, IRCCS Humanitas Research & University Hospital, Rozzano, Milan, Italy
| | - Guido De Ambroggi
- Arrhythmia & EP Research Center, IRCCS Humanitas Research & University Hospital, Rozzano, Milan, Italy
| | - Riccardo Cappato
- Arrhythmia & EP Research Center, IRCCS Humanitas Research & University Hospital, Rozzano, Milan, Italy
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43
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Tzou WS, Hussein AA, Madhavan M, Viswanathan MN, Steinberg BA, Ceresnak SR, Davis DR, Park DS, Wang PJ, Kapa S. Year in Review in Cardiac Electrophysiology. Circ Arrhythm Electrophysiol 2019; 12:e007142. [PMID: 30744401 DOI: 10.1161/circep.118.007142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Wendy S Tzou
- Department of Medicine, University of Colorado, Aurora (W.S.T.)
| | - Ayman A Hussein
- Department of Cardiovascular Medicine, Cleveland Clinic, OH (A.A.H.)
| | - Malini Madhavan
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN (M.M., S.K.)
| | - Mohan N Viswanathan
- Department of Medicine, Stanford University Medical Center, Palo Alto, CA (M.N.V., P.J.W.)
| | | | - Scott R Ceresnak
- Department of Medicine, Stanford Children's Health, Palo Alto, CA (S.R.C.)
| | - Darryl R Davis
- Division of Cardiology, University of Ottawa Heart Institute, Ontario, Canada (D.R.D.)
| | - David S Park
- Department of Medicine, New York University Langone Health, NY (D.S.P.)
| | - Paul J Wang
- Department of Medicine, Stanford University Medical Center, Palo Alto, CA (M.N.V., P.J.W.)
| | - Suraj Kapa
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN (M.M., S.K.)
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Olivotto I, Marchionni N. No heart is an island: hypertrophic cardiomyopathy, diabetes, and the test of time. Eur Heart J 2018; 40:1678-1680. [DOI: 10.1093/eurheartj/ehy732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Iacopo Olivotto
- Cardiothoracovascular Department, Careggi University Hospital, Florence, Italy
| | - Niccolò Marchionni
- Cardiothoracovascular Department, Careggi University Hospital, Florence, Italy
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Affiliation(s)
- Barry J Maron
- From the Hypertrophic Cardiomyopathy Center and Research Institute, Tufts Medical Center, Boston
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Schaff HV, Nguyen A. Does septal myectomy reduce risk of sudden cardiac death in patients with hypertrophic cardiomyopathy? J Thorac Cardiovasc Surg 2018; 156:748-749. [PMID: 29764684 DOI: 10.1016/j.jtcvs.2018.04.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 10/17/2022]
Affiliation(s)
| | - Anita Nguyen
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minn
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