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Zhuang H, Yang K, Zhao S, Wu J, Xu N, Zhang L, Qi X, Zhang M, Song L, Pang K. Incremental value of myocardial global longitudinal strain in predicting major adverse cardiac events among patients with hypertrophic cardiomyopathy. Echocardiography 2024; 41:e15834. [PMID: 38784981 DOI: 10.1111/echo.15834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024] Open
Abstract
OBJECTIVES Endocardial global longitudinal strain (endo-GLS) measured with echocardiography (echo) has been demonstrated to be associated with myocardial fibrosis (MF) and is a prognostic predictor in patients with hypertrophic cardiomyopathy (HCM). Late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) imaging showed that MF is primarily located in the myocardial layer of the extremely hypertrophic septal or ventricular wall. We hypothesized that GLS of the myocardial layer (myo-GLS) is more strongly correlated with the extent of LGE (%LGE) and is a more powerful prognostic factor than endo-GLS. METHODS A total of 177 inpatients (54.0 [IQR: 43.0, 64.0] years, female 37.3%) with HCM were retrospectively included from May 2019 to April 2021. Among them, 162 patients underwent echocardiographic examination and contrast-enhanced CMR within 7 days. Myo-GLS and %LGE were blindly assessed in a core laboratory. All the patients were followed after they were discharged. RESULTS During a mean follow-up of 33.77 [IQR 30.05, 35.40] months, 14 participants (7.91%) experienced major adverse cardiac events (MACE). The MACE (+) group showed lower absolute endo-GLS and myo-GLS than the MACE (-) group. Myo-GLS was more associated with %LGE (r = -.68, P < .001) than endo-GLS (r = -.64, P < .001). Cox multivariable analysis indicated that absolute myo-GLS was independently associated with MACE (adjusted hazard ratio = .75, P < .05). Myo-GLS was better than endo-GLS at detecting MACE (+) patients (-8.64%, AUC .939 vs. - 16.375%, AUC .898, P < .05). CONCLUSIONS Myo-GLS is a stronger predictor of MACE than endo-GLS in patients with HCM and is highly correlated with %LGE.
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Affiliation(s)
- Haiming Zhuang
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Kai Yang
- Department of Magnetic Resonance Imaging, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shihua Zhao
- Department of Magnetic Resonance Imaging, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jinlin Wu
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong, China
| | - Nan Xu
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Li Zhang
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Xiaoling Qi
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Mo Zhang
- Department of Cardiovascular Internal Medicine, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Lei Song
- Department of Cardiovascular Internal Medicine, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
| | - Kunjing Pang
- Department of Echocardiography, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishilu, Beijing, China
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Ong LT, Fan SWD. Prevalence and clinical significance of late gadolinium enhancement in children and adolescents with hypertrophic cardiomyopathy: a systematic review and meta-analysis. Cardiol Young 2024:1-10. [PMID: 38433549 DOI: 10.1017/s1047951124000337] [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] [Indexed: 03/05/2024]
Abstract
OBJECTIVES Hypertrophic cardiomyopathy is the leading cause of sudden cardiac death among the paediatric population. The aim of this study is to investigate the prevalence and clinical significance of late gadolinium enhancement, as assessed by cardiac MRI, in paediatric hypertrophic cardiomyopathy. METHODS A systematic literature search was conducted in PubMed, SCOPUS, and Ovid SP to identify relevant studies. Pooled estimates with a 95% confidence interval were calculated using the random-effects generic inverse variance model. Statistical analysis was performed using Review Manager v5.4 and R programming. RESULTS Seventeen studies were included in this meta-analysis, encompassing a total of 778 patients. Late gadolinium enhancement was highly prevalent in paediatric hypertrophic cardiomyopathy, with a pooled prevalence of 51% (95% confidence interval, 40-62%). The estimated extent of focal fibrosis expressed as a percentage of left ventricular mass was 4.70% (95% confidence interval, 2.11-7.30%). The presence of late gadolinium enhancement was associated with an increased risk of adverse cardiac events (pooled odds ratio 3.49, 95% confidence interval 1.10-11.09). The left ventricular mass index of late gadolinium enhancement-positive group was higher than the negative group, with a standardised mean difference of 0.91 (95% confidence interval, 0.42-1.41). CONCLUSION This meta-analysis demonstrates that prevalence of late gadolinium enhancement in paediatric hypertrophic cardiomyopathy is similar to that in the adult population. The presence and extent of late gadolinium enhancement are independent predictors of adverse cardiac events, underscoring their prognostic significance among the paediatric population.
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Affiliation(s)
- Leong Tung Ong
- Faculty of Medicine, University of Malaya, Kuala Lumpur, WP, Malaysia
| | - Si Wei David Fan
- Faculty of Medicine, University of Malaya, Kuala Lumpur, WP, Malaysia
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Abraham MR, Abraham TP. Role of Imaging in the Diagnosis, Evaluation, and Management of Hypertrophic Cardiomyopathy. Am J Cardiol 2024; 212S:S14-S32. [PMID: 38368033 DOI: 10.1016/j.amjcard.2023.10.081] [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: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 02/19/2024]
Abstract
Hypertrophic cardiomyopathy (HCM) is increasingly recognized and may benefit from the recent approval of new, targeted medical therapy. Successful management of HCM is dependent on early and accurate diagnosis. The lack of a definitive diagnostic test, the wide variation in phenotype and the commonness of phenocopy conditions, and the presence of normal or hyperdynamic left ventricular function in most patients makes HCM a condition that is highly dependent on imaging for all aspects of management including, diagnosis, classification, predicting risk of complications, detecting complications, identifying risk for ventricular arrhythmias, evaluating choice of therapy and monitoring therapy, intraprocedural guidance, and screening family members. Although echocardiographic imaging remains the mainstay in the diagnosis and subsequent management of HCM, this disease clearly requires multimethod imaging for various aspects of optimal patient care. Advances in echocardiography hardware and techniques, development and refinement of imaging with computed tomography, magnetic resonance, and nuclear scanning, and the emergence of very focused assessments such as diastology and fibrosis imaging have all advanced the diagnosis and management of HCM. In this review, we discuss the relative utility and evidence support for these imaging approaches to contribute to improve patient outcomes.
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Affiliation(s)
- Maria Roselle Abraham
- UCSF Hypertrophic Cardiomyopathy Center of Excellence, Division of Cardiology, University of California San Francisco, San Francisco, California
| | - Theodore P Abraham
- UCSF Hypertrophic Cardiomyopathy Center of Excellence, Division of Cardiology, University of California San Francisco, San Francisco, California.
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4
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Gherbesi E, Gianstefani S, Angeli F, Ryabenko K, Bergamaschi L, Armillotta M, Guerra E, Tuttolomondo D, Gaibazzi N, Squeri A, Spaziani C, Pizzi C, Carugo S. Myocardial strain of the left ventricle by speckle tracking echocardiography: From physics to clinical practice. Echocardiography 2024; 41:e15753. [PMID: 38284665 DOI: 10.1111/echo.15753] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/21/2023] [Accepted: 01/02/2024] [Indexed: 01/30/2024] Open
Abstract
Speckle tracking echocardiography (STE) is a reliable imaging technique of recognized clinical value in several settings. This method uses the motion of ultrasound backscatter speckles within echocardiographic images to derive myocardial velocities and deformation parameters, providing crucial insights on several cardiac pathological and physiological processes. Its feasibility, reproducibility, and accuracy have been widely demonstrated, being myocardial strain of the various chambers inserted in diagnostic algorithms and guidelines for various pathologies. The most important parameters are Global longitudinal strain (GLS), Left atrium (LA) reservoir strain, and Global Work Index (GWI): based on large studies the average of the lower limit of normality are -16%, 23%, and 1442 mmHg%, respectively. For GWI, it should be pointed out that myocardial work relies primarily on non-invasive measurements of blood pressure and segmental strain, both of which exhibit high variability, and thus, this variability constitutes a significant limitation of this parameter. In this review, we describe the principal aspects of the theory behind the use of myocardial strain, from cardiac mechanics to image acquisition techniques, outlining its limitation, and its principal clinical applications: in particular, GLS have a role in determine subclinical myocardial dysfunction (in cardiomyopathies, cardiotoxicity, target organ damage in ambulatory patients with arterial hypertension) and LA strain in determine the risk of AF, specifically in ambulatory patients with arterial hypertension.
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Affiliation(s)
- Elisa Gherbesi
- Department of Cardio-Thoracic-Vascular Diseases, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Silvia Gianstefani
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences - DIMEC - Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Francesco Angeli
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences - DIMEC - Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Khrystyna Ryabenko
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences - DIMEC - Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Luca Bergamaschi
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences - DIMEC - Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Matteo Armillotta
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences - DIMEC - Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Emiliano Guerra
- Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Policlinico Di Modena, Modena, Italy
| | - Domenico Tuttolomondo
- Cardiology Division, Parma University Hospital, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Nicola Gaibazzi
- Cardiology Division, Parma University Hospital, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Angelo Squeri
- Maria Cecilia Hospital, GVM Care and Research, Cotignola, Ravenna, Italy
| | - Cristina Spaziani
- Department of Cardio-Thoracic-Vascular Diseases, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Carmine Pizzi
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences - DIMEC - Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Stefano Carugo
- Department of Cardio-Thoracic-Vascular Diseases, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
- Department of Clinical Sciences and Community Health, University of Milano, Milano, Italy
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5
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Choi YJ, Lee HJ, Park JS, Park CS, Rhee TM, Choi JY, Choi HM, Park JB, Yoon YE, Lee SP, Na JO, Cho GY, Kim YJ, Hwang IC, Kim HK. Left ventricular global longitudinal strain as a prognosticator in hypertrophic cardiomyopathy with a low-normal left ventricular ejection fraction. Eur Heart J Cardiovasc Imaging 2023; 24:1374-1383. [PMID: 37467475 DOI: 10.1093/ehjci/jead177] [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: 04/18/2023] [Revised: 06/15/2023] [Accepted: 07/12/2023] [Indexed: 07/21/2023] Open
Abstract
AIMS The aim of this study was to investigate the prognostic utility of left ventricular (LV) global longitudinal strain (LV-GLS) in patients with hypertrophic cardiomyopathy (HCM) and an LV ejection fraction (LVEF) of 50-60%. METHODS AND RESULTS This retrospective cohort study included 349 patients with HCM and an LVEF of 50-60%. The primary outcome was a composite of cardiovascular death, including sudden cardiac death (SCD) and SCD-equivalent events. The secondary outcomes were SCD/SCD-equivalent events, cardiovascular death (including SCD), and all-cause death. The final analysis included 349 patients (mean age 59.2 ± 14.2 years, men 75.6%). During a median follow-up of 4.1 years, the primary outcome occurred in 26 (7.4%), while the secondary outcomes of SCD/SCD-equivalent events, cardiovascular death, and all-cause death occurred in 15 (4.2%), 20 (5.7%), and 34 (9.7%), respectively. After adjusting for age, atrial fibrillation, ischaemic stroke, LVEF, and left atrial volume index, absolute LV-GLS (%) was independently associated with the primary outcome [adjusted hazard ratio (HR) 0.88, 95% confidence interval (CI) 0.788-0.988, P = 0.029]. According to receiver operating characteristic analysis, 10.5% is an optimal cut-off value for absolute LV-GLS in predicting the primary outcome. Patients with an absolute LV-GLS ≤ 10.5% had a higher risk of the primary outcome than those with an absolute LV-GLS > 10.5% (adjusted HR 2.54, 95% CI 1.117-5.787, P = 0.026). Absolute LV-GLS ≤ 10.5% was an independent predictor for each secondary outcome (P < 0.05). CONCLUSIONS LV-GLS was an independent predictor of a composite of cardiovascular death, including SCD/SCD-equivalent events, in patients with HCM and an LVEF of 50-60%. Therefore, LV-GLS can help in risk stratification in these patients.
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Affiliation(s)
- You-Jung Choi
- Division of Cardiology, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Hyun-Jung Lee
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ji-Suck Park
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82 Gumi-ro 173 beon-gil, Bundang-gu, Seongnam, Gyeonggi-do 13620, Republic of Korea
| | - Chan Soon Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Tae-Min Rhee
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jah Yeon Choi
- Division of Cardiology, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Hong-Mi Choi
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82 Gumi-ro 173 beon-gil, Bundang-gu, Seongnam, Gyeonggi-do 13620, Republic of Korea
| | - Jun-Bean Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yeonyee E Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82 Gumi-ro 173 beon-gil, Bundang-gu, Seongnam, Gyeonggi-do 13620, Republic of Korea
| | - Seung-Pyo Lee
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jin Oh Na
- Division of Cardiology, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Goo-Yeong Cho
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82 Gumi-ro 173 beon-gil, Bundang-gu, Seongnam, Gyeonggi-do 13620, Republic of Korea
| | - Yong-Jin Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - In-Chang Hwang
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82 Gumi-ro 173 beon-gil, Bundang-gu, Seongnam, Gyeonggi-do 13620, Republic of Korea
| | - Hyung-Kwan Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
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Tunthong R, Salama AA, Lane CM, Fine NM, Anand V, Padang R, Thaden JJ, Pislaru SV, Kane GC. Right ventricular systolic strain in patients with pulmonary hypertension: clinical feasibility, reproducibility, and correlation with ejection fraction. J Echocardiogr 2023; 21:105-112. [PMID: 36451073 DOI: 10.1007/s12574-022-00593-6] [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: 03/17/2022] [Revised: 10/22/2022] [Accepted: 11/11/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Right ventricular (RV) systolic function is the major determinant of prognosis in patients with pulmonary hypertension (PH) with quantitative assessment by speckle-tracking strain echocardiography emerging as a viable candidate measure. METHOD We evaluated a prospective cohort of 231 patients with known or suspected PH referred for clinical echocardiography. All underwent measurement of RV free-wall systolic strain by sonographer staff. Digital images were recorded for blinded offline assessment by an expert echocardiographer. Reproducibility was assessed using the analysis methods of Bland-Altman and the Cohen's-Kappa coefficient. RESULTS RV strain was feasible in 213 (92%). The average RV systolic pressure was 59 ± 22 mmHg. RV systolic strain correlated with functional class, NT-proBNP, and the degree of RV enlargement. The average free-wall systolic strain was - 20 ± 7% (range - 2 to - 37%). The RV strain measures (clinical practice versus blinded expert) had an excellent correlation with a normal distribution (R2 0.87, p < 0.0001). By Bland-Altman analysis, the mean difference in measurement was - 1.7% (95% CI - 1.4 to - 2.1) with a correlation of 0.93, p value of < 0.0001. The reproducibility of RV strain for clinically relevant thresholds was also excellent (Kappa coefficients 0.68-0.83). There was no effect on the variability of strain measures across body mass, pulmonary pressures, or rhythm. RV strain correlated with RV diastolic volumes and ejection fraction with RV free wall strain being the best echo predictor for a reduction in ejection fraction. CONCLUSION Here RV systolic strain was found to be highly feasible and reproducible in clinical practice with excellent levels of agreement for clinically relevant thresholds.
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Affiliation(s)
- Ramaimon Tunthong
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
- Non-Invasive Cardiology Department, Bangkok Hospital Headquarters, BDMS, Bangkok, Thailand
| | - Abdalla A Salama
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
- Department of Cardiovascular Diseases, Suez Canal University, Ismailia, Egypt
| | - Conor M Lane
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
| | - Nowell M Fine
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
- Department of Cardiac Sciences, Libin Cardiovascular Institute, University of Calgary, Calgary, AB, Canada
| | - Vidhu Anand
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
| | - Ratnasari Padang
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
| | - Jeremy J Thaden
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
| | - Sorin V Pislaru
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA
| | - Garvan C Kane
- Division of Cardiovascular Ultrasound, Department of Cardiovascular Diseases, Mayo Clinic, Gonda 6, 200 First Street SW, Rochester, MN, 55905, USA.
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7
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Sakellaropoulos SG, Steinberg BS. Hypertrophic Cardiomyopathy: A Cardiovascular Challenge Becoming a Contemporary Treatable Disease. Cardiol Res 2023; 14:243-249. [PMID: 37559708 PMCID: PMC10409543 DOI: 10.14740/cr1514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/30/2023] [Indexed: 08/11/2023] Open
Abstract
Hypertrophic cardiomyopathy is one of the most common genetic inherited diseases of myocardium, which is caused by mutation in genes encoding proteins for the cardiac sarcomere. It is the most frequent cause of sudden death in young people and trained athletes. All diagnostic methods, including heart catheterization, transthoracic and transesophageal echocardiography, magnetic resonance imaging, genetic counseling and tissue biopsy are required for risk and therapy stratification and should be individualized depending on phenotype and genotype. Current therapy has not been tested adequately. Beta-blockers and verapamil can cause hypotension which can make hypertrophic cardiomyopathy worse. Disopyramide has been inadequately studied, and mavacamten was only studied in small trials. More definitive trials are currently ongoing. Novel invasive and noninvasive diagnostics, medical therapies, interventional and surgical approaches tend to influence the natural history of the disease, favoring a better future for this patient population.
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8
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Park J, Yoon YE, Chun EJ, Choi HM, Hwang IC, Lee HJ, Park JB, Lee SP, Kim HK, Kim YJ, Cho GY. Endocardial versus whole-myocardial tracking global longitudinal strain analysis in patients with hypertrophic cardiomyopathy: A preliminary comparative study. PLoS One 2023; 18:e0288421. [PMID: 37432934 DOI: 10.1371/journal.pone.0288421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 06/26/2023] [Indexed: 07/13/2023] Open
Abstract
BACKGROUND AND OBJECTIVES We investigated whether the feasibility of left ventricular (LV) global longitudinal strain (GLS) in hypertrophic cardiomyopathy (HCM) varies according to the methodology (e.g. endocardial vs. whole myocardial tracking techniques). METHODS We retrospectively analyzed 111 consecutive patients with HCM (median age, 58 years; male, 68.5%) who underwent both transthoracic echocardiography (TTE) and cardiac magnetic resonance imaging (apical 29.7%, septal 33.3%, and diffuse or mixed 37.0%). TTE-whole myocardial and TTE-endocardial GLS were measured and compared in terms of association with late gadolinium enhancement (LGE) extent and discrimination performance for extensive LGE (>15% of the LV myocardium). RESULTS Although TTE-whole myocardial and TTE-endocardial GLS were significantly correlated, absolute TTE-endocardial GLS values (19.3 [16.2-21.9] %) were higher than TTE-whole myocardial GLS values (13.3[10.9-15.6] %, p<0.001). Both TTE-derived GLS parameters were significantly correlated with the LGE extent and independently associated with extensive LGE (odds ratio [OR] 1.30, p = 0.022; and OR 1.24, p = 0.013, respectively). Discrimination performance for extensive LGE was comparable between TTE-whole myocardial and TTE-endocardial GLS (area under the curve [AUC], 0.747 and 0.754, respectively, pdifference = 0.610). However, among patients with higher LV mass index (>70 g/m2), only TTE-whole myocardial GLS correlated with LGE extent and was independently associated with extensive LGE (OR 1.35, p = 0.042), while TTE-endocardial GLS did not. Additionally, TTE-whole myocardial GLS had better discrimination performance for extensive LGE than TTE-endocardial GLS (AUC, 0.705 and 0.668, respectively, pdifference = 0.006). CONCLUSION TTE-derived GLS using either the endocardial or whole myocardial tracking technique is feasible in patients with HCM. However, in those with severe hypertrophy, TTE-whole myocardial GLS is better than TTE-endocardial GLS.
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Affiliation(s)
- Jiesuck Park
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yeonyee E Yoon
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Ju Chun
- Department of Radiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hong-Mi Choi
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - In-Chang Hwang
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyun Jung Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jun Bean Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Seung Pyo Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hyung Kwan Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yong Jin Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Goo-Yeong Cho
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
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9
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Saito T, Suzuki R, Yuchi Y, Fukuoka H, Satomi S, Teshima T, Matsumoto H. Comparative study of myocardial function in cases of feline hypertrophic cardiomyopathy with and without dynamic left-ventricular outflow-tract obstruction. Front Vet Sci 2023; 10:1191211. [PMID: 37426078 PMCID: PMC10324663 DOI: 10.3389/fvets.2023.1191211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/25/2023] [Indexed: 07/11/2023] Open
Abstract
In recent years, hypertrophic cardiomyopathy (HCM) in cats has become much more common in clinical practice due to improvements in diagnostic techniques and equipment performance. One phenotype is obstructive HCM with left ventricular (LV) outflow tract obstruction (DLVOTO). It has been reported that the presence or absence of DLVOTO does not affect long-term prognosis in cats with HCM. In this study, we evaluated and compared myocardial function in HCM-affected cats with and without DLVOTO using the two-dimensional speckle-tracking echocardiography. LV longitudinal strain of the endocardial, epicardial, and whole layer and LV circumferential strain of the epicardium were significantly decreased in all HCM-affected cats compared to healthy cats. However, these values were not significantly different between those with and without DLVOTO. In contrast, the endocardial and whole layers of LV circumferential strain were only significantly decreased in HCM-affected cats with DLVOTO compared to healthy cats. This could be attributed to the fact that the LV pressure load associated with DLVOTO affected the endocardial myocardium more in the LV endocardial layer, and that lower values of LV endocardial strain lowered the values of LV strain in the whole layer. In conclusion, our results suggest that LV myocardial function may have been more compromised in the HCM-affected cats with DLVOTO.
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10
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Kaski JP, Kammeraad JAE, Blom NA, Happonen JM, Janousek J, Klaassen S, Limongelli G, Östman-Smith I, Sarquella Brugada G, Ziolkowska L. Indications and management of implantable cardioverter-defibrillator therapy in childhood hypertrophic cardiomyopathy. Cardiol Young 2023; 33:681-698. [PMID: 37102324 DOI: 10.1017/s1047951123000872] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Sudden cardiac death is the most common mode of death during childhood and adolescence in hypertrophic cardiomyopathy, and identifying those individuals at highest risk is a major aspect of clinical care. The mainstay of preventative therapy is the implantable cardioverter-defibrillator, which has been shown to be effective at terminating malignant ventricular arrhythmias in children with hypertrophic cardiomyopathy but can be associated with substantial morbidity. Accurate identification of those children at highest risk who would benefit most from implantable cardioverter-defibrillator implantation while minimising the risk of complications is, therefore, essential. This position statement, on behalf of the Association for European Paediatric and Congenital Cardiology (AEPC), reviews the currently available data on established and proposed risk factors for sudden cardiac death in childhood-onset hypertrophic cardiomyopathy and current approaches for risk stratification in this population. It also provides guidance on identification of individuals at risk of sudden cardiac death and optimal management of implantable cardioverter-defibrillators in children and adolescents with hypertrophic cardiomyopathy.
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Affiliation(s)
- Juan Pablo Kaski
- Centre for Paediatric Inherited and Rare Cardiovascular Disease, University College London Institute of Cardiovascular Science, London, UK
- Centre for Inherited Cardiovascular Diseases, Great Ormond Street Hospital, London, UK
| | - Janneke A E Kammeraad
- Erasmus MC - Sophia Children's Hospital, Department of Paediatric Cardiology, Rotterdam, the Netherlands
| | - Nico A Blom
- Department of Pediatric Cardiology, University of Leiden, Leiden, the Netherlands
- Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Juha-Matti Happonen
- Department of Paediatric Cardiology, Helsinki University Children's Hospital, Helsinki, Finland
| | - Jan Janousek
- Children's Heart Center, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Sabine Klaassen
- Department of Pediatric Cardiology, Charite-Universitatsmedizin Berlin, Berlin, Germany
| | - Giuseppe Limongelli
- Inherited and Rare Cardiovascular Disease Unit, AO dei Colli Monaldi Hospital, Universita della Campania "Luigi Vanvitelli", Naples, Italy
| | - Ingegerd Östman-Smith
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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11
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Hu X, Bao Y, Zhu Y, Zheng K, Zhang J, Zhou W, Deng Y, Liu Y. Predicting Left Ventricular Myocardial Fibrosis in Patients with Hypertrophic Cardiomyopathy by Speckle Tracking Automated Functional Imaging. ULTRASOUND IN MEDICINE & BIOLOGY 2023; 49:1309-1317. [PMID: 36863952 DOI: 10.1016/j.ultrasmedbio.2023.01.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 12/25/2022] [Accepted: 01/24/2023] [Indexed: 05/11/2023]
Abstract
OBJECTIVE The study was performed to explore the predictive value of multiple strain parameters for myocardial fibrosis in patients with hypertrophic cardiomyopathy (HCM) by using speckle tracking automated functional imaging (AFI). METHODS A total of 61 patients diagnosed with HCM were finally enrolled in this study. All patients completed transthoracic echocardiography and cardiac magnetic resonance late gadolinium enhancement (LGE) within 1 month. Twenty age- and sex-matched healthy participants were included as the control group. Multiple parameters, including segmental longitudinal strain (LS), global longitudinal strain (GLS), post-systolic index and peak strain dispersion, were automatically analyzed by AFI. RESULTS A total of 1458 myocardial segments were analyzed according to the left ventricular 18-segment model. Among the 1098 segments from HCM patients, segments with LGE had a lower absolute value of segmental LS than those without LGE (p < 0.05). The cutoff values of segmental LS for predicting positive LGE in the basal, intermediate and apical regions were -12.5%, -11.5% and -14.5%, respectively. GLS could predict significant myocardial fibrosis (≥2 positive LGE segments) at a cutoff value of -16.5% with a sensitivity of 80.9% and specificity of 76.5%. As an independent predictor of significant myocardial fibrosis, GLS was substantially associated with the severity of myocardial fibrosis and 5 years sudden cardiac death risk score in HCM patients. CONCLUSION Speckle tracking AFI could efficiently identify left ventricular myocardial fibrosis in patients with HCM by multiple parameters. GLS predicted significant myocardial fibrosis at a cutoff value of -16.5%, which may indicate the adverse clinical outcomes in HCM patients.
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Affiliation(s)
- Xin Hu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuwei Bao
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Zhu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kangchao Zheng
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Zhang
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Zhou
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Youbin Deng
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yani Liu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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12
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Machine Learning Approaches in Diagnosis, Prognosis and Treatment Selection of Cardiac Amyloidosis. Int J Mol Sci 2023; 24:ijms24065680. [PMID: 36982754 PMCID: PMC10051237 DOI: 10.3390/ijms24065680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023] Open
Abstract
Cardiac amyloidosis is an uncommon restrictive cardiomyopathy featuring an unregulated amyloid protein deposition that impairs organic function. Early cardiac amyloidosis diagnosis is generally delayed by indistinguishable clinical findings of more frequent hypertrophic diseases. Furthermore, amyloidosis is divided into various groups, according to a generally accepted taxonomy, based on the proteins that make up the amyloid deposits; a careful differentiation between the various forms of amyloidosis is necessary to undertake an adequate therapeutic treatment. Thus, cardiac amyloidosis is thought to be underdiagnosed, which delays necessary therapeutic procedures, diminishing quality of life and impairing clinical prognosis. The diagnostic work-up for cardiac amyloidosis begins with the identification of clinical features, electrocardiographic and imaging findings suggestive or compatible with cardiac amyloidosis, and often requires the histological demonstration of amyloid deposition. One approach to overcome the difficulty of an early diagnosis is the use of automated diagnostic algorithms. Machine learning enables the automatic extraction of salient information from “raw data” without the need for pre-processing methods based on the a priori knowledge of the human operator. This review attempts to assess the various diagnostic approaches and artificial intelligence computational techniques in the detection of cardiac amyloidosis.
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13
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Desai MY, Mehra N, Hajj Ali A. On Its Journey From a Novelty to a Workhorse: Is Left Ventricular Strain Assessment in Hypertrophic Cardiomyopathy There Yet? J Am Soc Echocardiogr 2023; 36:205-207. [PMID: 36522239 DOI: 10.1016/j.echo.2022.11.012] [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: 11/25/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Milind Y Desai
- Hypertrophic Cardiomyopathy Center, Heart Vascular Thoracic Institute, Cleveland Clinic, Cleveland, Ohio.
| | - Nandini Mehra
- Hypertrophic Cardiomyopathy Center, Heart Vascular Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Adel Hajj Ali
- Hypertrophic Cardiomyopathy Center, Heart Vascular Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
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14
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Clinical Utility of Strain Imaging in Assessment of Myocardial Fibrosis. J Clin Med 2023; 12:jcm12030743. [PMID: 36769393 PMCID: PMC9917743 DOI: 10.3390/jcm12030743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/26/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Myocardial fibrosis (MF) is a non-reversible process that occurs following acute or chronic myocardial damage. MF worsens myocardial deformation, remodels the heart and raises myocardial stiffness, and is a crucial pathological manifestation in patients with end-stage cardiovascular diseases and closely related to cardiac adverse events. Therefore, early quantitative analysis of MF plays an important role in risk stratification, clinical decision, and improvement in prognosis. With the advent and development of strain imaging modalities in recent years, MF may be detected early in cardiovascular diseases. This review summarizes the clinical usefulness of strain imaging techniques in the non-invasive assessment of MF.
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15
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Impact of Short-Acting Disopyramide on Left Ventricular Mechanics Evaluated by Strain Analysis in Patients with Hypertrophic Obstructive Cardiomyopathy. J Clin Med 2022; 11:jcm11247325. [PMID: 36555940 PMCID: PMC9785974 DOI: 10.3390/jcm11247325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/19/2022] [Accepted: 12/03/2022] [Indexed: 12/14/2022] Open
Abstract
Background: Disopyramide is a class Ia antiarrhythmic drug that has been used for the second-line treatment of symptomatic hypertrophic obstructive cardiomyopathy (HOCM). The aim of the study was to assess the impact of short-acting disopyramide in patients with hypertrophic obstructive cardiomyopathy (HOCM) using two-dimensional speckle-tracking echocardiography. Methods: This prospective study included patients with HOCM on chronic treatment with short-acting disopyramide. Two sequential comprehensive echocardiographic examinations were performed: after temporary disopyramide suspension and 2.5 h after disopyramide intake. Results: 19 patients were included in the study. The effect of disopyramide on the left ventricle was not uniform. After the intake of disopyramide, the mean global strain peak was −17 ± 2% before disopyramide intake and −14 ± 2% after (p < 0.0001). There was a significant reduction in strain in the basal septal (p = 0.015), basal inferior (p = 0.019), basal posterior (p = 0.05), apical anterior (p = 0.0001), and apical lateral segments (p = 0.021). In all other segments, there was no significant change. Disopyramide also caused a significant accentuation of the base-apex strain gradients (p = 0.036). No change was noted in circumferential and left atrial strain. While the left ventricular ejection fraction and outflow gradients did not change, the significant reduction in global and segmental longitudinal strain demonstrated the acute negative inotropic effect of disopyramide on the myocardium in patients with HOCM. Conclusion: A strain analysis may be a useful tool to assess the negative inotropic effect of cardiovascular medication on the left ventricle in patients with HOCM.
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16
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Yang Y, Wu D, Wang H, Wang Y. Prognostic value of global longitudinal strain in hypertrophic cardiomyopathy: A systematic review and meta-analysis. Clin Cardiol 2022; 45:1184-1191. [PMID: 36177652 DOI: 10.1002/clc.23928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/06/2022] [Accepted: 09/15/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND As previously reported, impairment of left ventricular global longitudinal strain (LVGLS) is associated with myocardial fibrosis, arrhythmias, and heart failure in hypertrophic cardiomyopathy (HCM) patients. HYPOTHESIS This study aimed to estimate the association between LVGLS measured by echocardiography and major adverse cardiovascular events (MACE) in patients with HCM. METHODS Pubmed, Embase, Scopus, and Cochrane Library databases were systematically searched for evaluating the difference of LVGLS between MACE and non-MACE and the relevance of LVGLS and MACE in HCM patients, mean difference (MD), and pooled hazard ratios (HR) with 95% confidence interval (CI) were calculated. Publication bias was detected by funnel plots and Egger's test, and trim-and-fill analysis was employed when publication bias existed. RESULTS A total of 13 studies reporting 2441 HCM patients were included in this meta-analysis. Absolute value of LVGLS was lower in the group of HCM with MACE (MD = 2.74, 95% CI: 2.50-2.99, p < .001; I2 = 0, p = .48). In the pooled unadjusted model, LVGLS was related to MACE (HR = 1.14, 95% CI: 1.06-1.22, p < .05, I2 = 58.4%, p < .01) and there is a mild heterogeneity, and sensitivity analysis showed stable results. In the pooled adjusted model, LVGLS was related to MACE (HR = 1.12, 95% CI: 1.08-1.16, p < .05; I2 = 0%, p = .442). Egger's tests showed publication bias, and trim-and-fill analysis was applied, with final results similar to the previous and still statistically significant. CONCLUSION The meta-analysis suggested that impaired LVGLS was associated with poor prognosis in HCM patients.
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Affiliation(s)
- Ying Yang
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Dong Wu
- Department of Radiology, The First Bethune Hospital of Jilin University, Changchun, Jilin, China
| | - Hui Wang
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Yanting Wang
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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17
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Gao L, Lin Y, Ji M, Wu W, Li H, Qian M, Zhang L, Xie M, Li Y. Clinical Utility of Three-Dimensional Speckle-Tracking Echocardiography in Heart Failure. J Clin Med 2022; 11:6307. [DOI: 10.3390/jcm11216307] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Heart failure (HF) is an extremely major health problem with gradually increasing incidence in developed and developing countries. HF may lead to cardiac remodeling; thus, advanced imaging techniques are required to comprehensively evaluate cardiac mechanics. Recently, three-dimensional speckle-tracking echocardiography (3D-STE) has been developed as a novel imaging technology that is based on the three-dimensional speckle-tracking on the full volume three-dimensional datasets. Three-dimensional speckle-tracking echocardiography allows a more accurate evaluation of global and regional myocardial performance, assessment of cardiac mechanics, detection of subclinical cardiac dysfunction, and prediction of adverse clinical events in a variety of cardiovascular diseases. Therefore, this review summarizes the clinical usefulness of 3D-STE in patients with HF.
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18
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Cardiac fibrosis in oncologic therapies. CURRENT OPINION IN PHYSIOLOGY 2022; 29. [DOI: 10.1016/j.cophys.2022.100575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Zhu L, Wang Y, Zhao S, Lu M. Detection of myocardial fibrosis: Where we stand. Front Cardiovasc Med 2022; 9:926378. [PMID: 36247487 PMCID: PMC9557071 DOI: 10.3389/fcvm.2022.926378] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
Myocardial fibrosis, resulting from the disturbance of extracellular matrix homeostasis in response to different insults, is a common and important pathological remodeling process that is associated with adverse clinical outcomes, including arrhythmia, heart failure, or even sudden cardiac death. Over the past decades, multiple non-invasive detection methods have been developed. Laboratory biomarkers can aid in both detection and risk stratification by reflecting cellular and even molecular changes in fibrotic processes, yet more evidence that validates their detection accuracy is still warranted. Different non-invasive imaging techniques have been demonstrated to not only detect myocardial fibrosis but also provide information on prognosis and management. Cardiovascular magnetic resonance (CMR) is considered as the gold standard imaging technique to non-invasively identify and quantify myocardial fibrosis with its natural ability for tissue characterization. This review summarizes the current understanding of the non-invasive detection methods of myocardial fibrosis, with the focus on different techniques and clinical applications of CMR.
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Affiliation(s)
- Leyi Zhu
- State Key Laboratory of Cardiovascular Disease, Department of Magnetic Resonance Imaging, National Center for Cardiovascular Diseases, Fuwai Hospital, Beijing, China
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Yining Wang
- State Key Laboratory of Cardiovascular Disease, Department of Magnetic Resonance Imaging, National Center for Cardiovascular Diseases, Fuwai Hospital, Beijing, China
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shihua Zhao
- State Key Laboratory of Cardiovascular Disease, Department of Magnetic Resonance Imaging, National Center for Cardiovascular Diseases, Fuwai Hospital, Beijing, China
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Minjie Lu
- State Key Laboratory of Cardiovascular Disease, Department of Magnetic Resonance Imaging, National Center for Cardiovascular Diseases, Fuwai Hospital, Beijing, China
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Key Laboratory of Cardiovascular Imaging (Cultivation), Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Minjie Lu
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20
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Molecular Approaches and Echocardiographic Deformation Imaging in Detecting Myocardial Fibrosis. Int J Mol Sci 2022; 23:ijms231810944. [PMID: 36142856 PMCID: PMC9501415 DOI: 10.3390/ijms231810944] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/11/2022] [Accepted: 09/16/2022] [Indexed: 12/25/2022] Open
Abstract
The pathological remodeling of myocardial tissue is the main cause of heart diseases. Several processes are involved in the onset of heart failure, and the comprehension of the mechanisms underlying the pathological phenotype deserves special attention to find novel procedures to identify the site of injury and develop novel strategies, as well as molecular druggable pathways, to counteract the high degree of morbidity associated with it. Myocardial fibrosis (MF) is recognized as a critical trigger for disruption of heart functionality due to the excessive accumulation of extracellular matrix proteins, in response to an injury. Its diagnosis remains focalized on invasive techniques, such as endomyocardial biopsy (EMB), or may be noninvasively detected by cardiac magnetic resonance imaging (CMRI). The detection of MF by non-canonical markers remains a challenge in clinical practice. During the last two decades, two-dimensional (2D) speckle tracking echocardiography (STE) has emerged as a new non-invasive imaging modality, able to detect myocardial tissue abnormalities without specifying the causes of the underlying histopathological changes. In this review, we highlighted the clinical utility of 2D-STE deformation imaging for tissue characterization, and its main technical limitations and criticisms. Moreover, we focalized on the importance of coupling 2D-STE examination with the molecular approaches in the clinical decision-making processes, in particular when the 2D-STE does not reflect myocardial dysfunction directly. We also attempted to examine the roles of epigenetic markers of MF and hypothesized microRNA-based mechanisms aiming to understand how they match with the clinical utility of echocardiographic deformation imaging for tissue characterization and MF assessment.
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21
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Targeting Myocardial Fibrosis—A Magic Pill in Cardiovascular Medicine? Pharmaceutics 2022; 14:pharmaceutics14081599. [PMID: 36015225 PMCID: PMC9414721 DOI: 10.3390/pharmaceutics14081599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022] Open
Abstract
Fibrosis, characterized by an excessive accumulation of extracellular matrix, has long been seen as an adaptive process that contributes to tissue healing and regeneration. More recently, however, cardiac fibrosis has been shown to be a central element in many cardiovascular diseases (CVDs), contributing to the alteration of cardiac electrical and mechanical functions in a wide range of clinical settings. This paper aims to provide a comprehensive review of cardiac fibrosis, with a focus on the main pathophysiological pathways involved in its onset and progression, its role in various cardiovascular conditions, and on the potential of currently available and emerging therapeutic strategies to counteract the development and/or progression of fibrosis in CVDs. We also emphasize a number of questions that remain to be answered, and we identify hotspots for future research.
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22
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Garcia Brás P, Aguiar Rosa S, Thomas B, Fiarresga A, Cardoso I, Pereira R, Branco G, Cruz I, Baquero L, Cruz Ferreira R, Mota Carmo M, Rocha Lopes L. Associations between perfusion defects, tissue changes and myocardial deformation in hypertrophic cardiomyopathy, uncovered by a cardiac magnetic resonance segmental analysis. Rev Port Cardiol 2022; 41:559-568. [DOI: 10.1016/j.repc.2022.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 03/22/2022] [Indexed: 11/28/2022] Open
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23
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Klettas D, Georgiopoulos G, Rizvi Q, Oikonomou D, Magkas N, Bhuva AN, Manisty C, Captur G, Aimo A, Nihoyannopoulos P. Echocardiographic and Cardiac Magnetic Resonance Imaging-Derived Strains in Relation to Late Gadolinium Enhancement in Hypertrophic Cardiomyopathy. Am J Cardiol 2022; 171:132-139. [PMID: 35305784 DOI: 10.1016/j.amjcard.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 01/28/2022] [Accepted: 02/01/2022] [Indexed: 11/01/2022]
Abstract
We compared speckle tracking echocardiography (STE) and feature tracking cardiovascular magnetic resonance (FT-CMR) in patients with hypertrophic cardiomyopathy (HC) with a varying extent of fibrosis as defined by late gadolinium enhancement to look at the level of agreement between methods and their ability to relate those to myocardial fibrosis. At 2 reference centers, 79 patients with HC and 16 volunteers (the control group) underwent STE and CMR with late gadolinium enhancement and FT-CMR. Patients were classified into 3 categories: no detectable, limited, and extensive fibrosis. Global longitudinal strain (GLS) and global radial strain (GRS) were derived using FT-CMR and STE. STE-derived GRS was decreased in all HC categories compared with the control group (p <0.001), whereas FT-CMR GRS was reduced only in patients with HC with fibrosis (p <0.05). Reduced STE-derived GLS was associated with extensive fibrosis (p <0.05) and a value less than -15.2% identified those with extensive fibrosis (sensitivity 79%, specificity 92%, area under the curve 0.863, 95% confidence interval [CI] 0.76 to 0.97, p <0.001). Inter-modality agreement was moderate for STE versus CMR-GLS (overall population intra-class correlation coefficient = 0.615, 95% CI 0.42 to 0.75, p <0.001; patients with HC 0.63, 0.42 to 0.76, p <0.001) and GRS (overall population intra-class correlation coefficient = 0.601, 95% CI 0.397 to 0.735, p <0.001). A low level of agreement for GRS was seen between methods in patients with HC. In conclusion, strain indexes measured using echocardiography and CMR are reduced in patients with HC compared with the control group and correlate well with the burden of myocardial fibrosis. Reduced STE-GLS can identify patients with extensive fibrosis, but whether there is an added value for risk stratification for sudden cardiac death remains to be determined.
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Affiliation(s)
- Dimitrios Klettas
- Imperial College London, National Heart and Lung Institute, Hammersmith Hospital, London, United Kingdom; First Department of Cardiology, 'Hippokration' Hospital, University of Athens, Greece
| | - Georgios Georgiopoulos
- School of Biomedical Engineering and Imaging Sciences, King's College, London, United Kingdom
| | - Qaima Rizvi
- Imperial College London, National Heart and Lung Institute, Hammersmith Hospital, London, United Kingdom
| | | | - Nikolaos Magkas
- First Department of Cardiology, 'Hippokration' Hospital, University of Athens, Greece
| | - Anish N Bhuva
- Department of Cardiovascular Imaging, Barts Heart Center, London, United Kingdom; University College London Institute of Cardiovascular Science, University College London, London, United Kingdom
| | - Charlotte Manisty
- Department of Cardiovascular Imaging, Barts Heart Center, London, United Kingdom; University College London Institute of Cardiovascular Science, University College London, London, United Kingdom
| | - Gabriella Captur
- Royal Free London, National Health Service Foundation Trust, London, United Kingdom; University College London Medical Research Council Unit for Lifelong Health and Aging, University College London, London, United Kingdom; University College London Institute of Cardiovascular Science, University College London, London, United Kingdom
| | - Alberto Aimo
- Institute of Life Sciences, Sant'Anna School of Advanced Studies, Pisa, Italy; Cardiology Department, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Petros Nihoyannopoulos
- Imperial College London, National Heart and Lung Institute, Hammersmith Hospital, London, United Kingdom; First Department of Cardiology, 'Hippokration' Hospital, University of Athens, Greece.
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Song Y, Bi X, Chen L, Yang K, Chen X, Dong Z, Wang J, Kong X, Zhao K, Wang H, Duru F, Lu M, Ma L, Qiao S, Zhao S. Reduced myocardial septal function assessed by cardiac magnetic resonance feature tracking in patients with hypertrophic obstructive cardiomyopathy: associated with histological myocardial fibrosis and ventricular arrhythmias. Eur Heart J Cardiovasc Imaging 2022; 23:1006-1015. [PMID: 35167663 DOI: 10.1093/ehjci/jeac032] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Indexed: 01/10/2023] Open
Abstract
AIMS Echocardiographic studies suggest that strain is related to myocardial fibrosis (MF) and ventricular arrhythmias (VA) in hypertrophic cardiomyopathy (HCM) patients. Cardiac magnetic resonance feature tracking (CMR-FT) also allows strain analysis, but little is known whether it provides incremental value to late gadolinium enhancement imaging (LGE). This study aimed to explore the relationship between CMR-FT-derived strain parameters and histopathology MF and VA and its incremental value to LGE in obstructive HCM (HOCM) patients undergoing septal myectomy. METHODS AND RESULTS One hundred and twenty-three symptomatic HOCM patients underwent CMR examination, followed by septal myectomy. The abnormally increased histological MF was defined as higher than the mean + 2 standard deviation (SD) of nine control autopsy subjects who had no history of cardiovascular disease. Septal strain parameters and septal LGE were evaluated at the site of surgical myectomy. Among HOCM patients without LGE, septal circumferential (P = 0.003), longitudinal (P = 0.001), and radial (P = 0.02) strains were significantly impaired in patients with increased histological MF than those without. Histological MF was significantly associated with septal circumferential strain (r = 0.32, P < 0.001), septal longitudinal strain (r = 0.42, P < 0.001), and septal radial strain (r = -0.27, P = 0.003). On multivariate analysis, septal longitudinal strain was independently associated with histological MF [β, 0.19 (0.05-0.34); P = 0.01], and VA [odds ratio, 1.10 (1.01-1.19); P = 0.02]. Moreover, septal longitudinal strain was incremental to septal %LGE in detecting increased MF (P = 0.001) and VA (P = 0.048). CONCLUSIONS Septal longitudinal strain at CMR is independently related to histological MF and occurrence of VA in HOCM patients. Moreover, it provides incremental value over LGE in detecting increased MF and VA.
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Affiliation(s)
- Yanyan Song
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Xuanye Bi
- Department of Cardiovascular Disease, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Liang Chen
- Department of Cardiac Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kai Yang
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Xiuyu Chen
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Zhixiang Dong
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Jiaxin Wang
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Xiangyong Kong
- Department of Cardiology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, No. 1 Swan Lake Road, Hefei 230001, Anhui, China
| | - Kankan Zhao
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, SZ University Town, Shenzhen, China
| | - Hongyue Wang
- Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Firat Duru
- Department of Cardiology, University Heart Center, University Hospital Zurich, Rämistrasse 100, Zurich 8091, Switzerland
| | - Minjie Lu
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Likun Ma
- Department of Cardiology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, No. 1 Swan Lake Road, Hefei 230001, Anhui, China
| | - Shubin Qiao
- Department of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
| | - Shihua Zhao
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China
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25
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Lee HJ, Kim HK, Lee SC, Kim J, Park JB, Hwang IC, Choi YJ, Lee SP, Chang SA, Lee W, Park EA, Cho GY, Kim YJ. Supplementary role of left ventricular global longitudinal strain for predicting sudden cardiac death in hypertrophic cardiomyopathy. Eur Heart J Cardiovasc Imaging 2021; 23:1108-1116. [PMID: 34542591 DOI: 10.1093/ehjci/jeab187] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
AIMS We investigated the prognostic role of left ventricular global longitudinal strain (LV-GLS) and its incremental value to established risk models for predicting sudden cardiac death (SCD) in patients with hypertrophic cardiomyopathy (HCM). METHODS AND RESULTS LV-GLS was measured with vendor-independent software at a core laboratory in a cohort of 835 patients with HCM (aged 56.3 ± 12.2 years) followed-up for a median of 6.4 years. The primary endpoint was SCD events, including appropriate defibrillator therapy, within 5 years after the initial evaluation. The secondary endpoint was a composite of SCD events, heart failure admission, heart transplantation, and all-cause mortality. Twenty (2.4%) and 85 (10.2%) patients experienced the primary and secondary endpoints, respectively. Lower absolute LV-GLS quartiles, especially those worse than the median (-15.0%), were associated with progressively higher SCD event rates (P = 0.004). LV-GLS was associated with an increased risk for the primary endpoint, independent of the LV ejection fraction, apical aneurysm, and 2014 European Society of Cardiology (ESC) risk score [adjusted hazard ratio (aHR) 1.14, 95% confidence interval (CI) 1.02-1.28] or 2011 American College of Cardiology/American Heart Association (ACC/AHA) risk factors (aHR 1.18, 95% CI 1.05-1.32). LV-GLS was also associated with a higher risk for the composite secondary endpoint (aHR 1.06, 95% CI 1.01-1.12). The addition of LV-GLS enhanced the performance of the ESC risk score (C-statistic 0.756 vs. 0.842, P = 0.007) and the 2011 ACC/AHA risk factor strategy (C-statistic 0.743 vs. 0.814, P = 0.007) for predicting SCD. CONCLUSION LV-GLS is an important prognosticator in patients with HCM and provides additional information to established risk stratification strategies for predicting SCD.
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Affiliation(s)
- Hyun-Jung Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Hyung-Kwan Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Sang Chol Lee
- Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul 06351, Korea
| | - Jihoon Kim
- Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul 06351, Korea
| | - Jun-Bean Park
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - In-Chang Hwang
- Cardiovascular Center and Department of Internal Medicine, Seoul National University Bundang Hospital, Bundang-gu, Seongnam 13620, Korea
| | - You-Jung Choi
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Seung-Pyo Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Sung-A Chang
- Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul 06351, Korea
| | - Whal Lee
- Department of Radiology, Seoul National University Hospital, Jongno-gu, Seoul 03080, Korea
| | - Eun-Ah Park
- Department of Radiology, Seoul National University Hospital, Jongno-gu, Seoul 03080, Korea
| | - Goo-Yeong Cho
- Cardiovascular Center and Department of Internal Medicine, Seoul National University Bundang Hospital, Bundang-gu, Seongnam 13620, Korea
| | - Yong-Jin Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Korea
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26
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Saito T, Suzuki R, Yuchi Y, Teshima T, Matsumoto H, Koyama H. Early detection of myocardial dysfunction in a cat that gradually progressed to endomyocardial form of restrictive cardiomyopathy. BMC Vet Res 2021; 17:274. [PMID: 34391430 PMCID: PMC8364115 DOI: 10.1186/s12917-021-02987-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/04/2021] [Indexed: 11/17/2022] Open
Abstract
Background Restrictive cardiomyopathy (RCM) is a common myocardial disease in cats, characterized by diastolic dysfunction and atrial enlargement without myocardial hypertrophy. Especially, endomyocardial form of RCM, one of the subtypes in RCM, is characterized by endocardial fibrosis, endocardial scar bridging the interventricular septum and left ventricular (LV) free wall, and deformation and distortion of the LV. However, it is unclear how the myocardial dysfunction and the endocardial scar contribute to the pathophysiology of RCM disease progression. Case presentation A 3 years and 2 months old, intact male, Domestic shorthaired cat was presented for consultation of cardiac murmur. At the first visit (day 0), the notable abnormal finding was echocardiography-derived chordae tendineae-like structure bridging the interventricular septum and the LV free wall, resulting high-speed blood flow in the left ventricle. Electrocardiography, thoracic radiography and noninvasive blood pressure measurements were normal. No left atrial enlargement was observed, and LV inflow velocity showed an abnormal relaxation pattern. Although there was no abnormality in tissue Doppler imaging-derived myocardial velocity, two-dimensional speckle tracking echocardiography (2D-STE) revealed a decrease in the LV longitudinal strain and an increase in endocardial to epicardial ratio of the LV circumferential strain on day 0. On day 468, obvious left atrium enlargement and smoke like echo in the left atrium were observed. The LV inflow velocity was fused, and the tissue Doppler imaging-derived early-diastolic myocardial velocity of the septal mitral annulus decreased. Regarding 2D-STE, LV circumferential strain was further decreased, and right ventricular strain was additionally decreased. Although the general condition was good, we made a clinical diagnosis of endomyocardial RCM based on the above findings. On day 503, the cat showed the radiographic evidence of pulmonary edema and congestive heart failure signs. Conclusions Cats with abnormal LV structure and associated myocardial dysfunction like this case needs careful observation. Additionally, 2D-STE indices may be useful for early detection of myocardial dysfunction in feline RCM.
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Affiliation(s)
- Takahiro Saito
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, 180-8602, Musashino-shi, Tokyo, Japan.,Sagamihara Animal Medical Center, 10-17-2 Kobuchi, Minami-ku, 252-0344, Sagamihara-shi, Kanagawa, Japan
| | - Ryohei Suzuki
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, 180-8602, Musashino-shi, Tokyo, Japan.
| | - Yunosuke Yuchi
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, 180-8602, Musashino-shi, Tokyo, Japan
| | - Takahiro Teshima
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, 180-8602, Musashino-shi, Tokyo, Japan
| | - Hirotaka Matsumoto
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, 180-8602, Musashino-shi, Tokyo, Japan
| | - Hidekazu Koyama
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, 180-8602, Musashino-shi, Tokyo, Japan
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Role of Two-Dimensional Speckle-Tracking Echocardiography in Early Detection of Left Ventricular Dysfunction in Dogs. Animals (Basel) 2021; 11:ani11082361. [PMID: 34438818 PMCID: PMC8388726 DOI: 10.3390/ani11082361] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/24/2021] [Accepted: 08/07/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Two-dimensional speckle-tracking echocardiography represents an advanced imaging technique that allows the analysis of global and regional myocardial function, cardiac rotation and synchronicity using deformation imaging. It has gained growing importance over the last decade, especially in human medicine as a method of evaluating myocardial function. This review aims to give an overview of the current understanding of this technique and its clinical applicability in the field of veterinary medicine with a focus on early detection of left ventricular dysfunction in dogs. Abstract Two-dimensional speckle-tracking echocardiography (2D–STE) is an advanced echocardiographic technique based on deformation imaging that allows comprehensive evaluation of the myocardial function. Clinical application of 2D–STE holds great potential for its ability to provide valuable information on both global and regional myocardial function and to quantify cardiac rotation and synchronicity, which are not readily possible with the conventional echocardiography. It has gained growing importance over the past decade, especially in human medicine, and its application includes assessment of myocardial function, detection of subclinical myocardial dysfunction and serving as a prognostic indicator. This review illustrates the fundamental concepts of deformation analysis and gives an overview of the current understanding and its clinical application of this technique in veterinary medicine, with a focus on early detection of left ventricular (LV) dysfunction in dogs.
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28
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Sharifian M, Rezaeian N, Asadian S, Mohammadzadeh A, Nahardani A, Kasani K, Toloueitabar Y, Farahmand AM, Hosseini L. Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy. Cardiol Res Pract 2021; 2021:9931136. [PMID: 34123419 PMCID: PMC8169266 DOI: 10.1155/2021/9931136] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/19/2021] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE In hypertrophic cardiomyopathy (HCM), myocardial fibrosis is routinely shown by late gadolinium enhancement (LGE) in cardiac magnetic resonance (CMR) imaging. We evaluated the efficacy of 2 novel contrast-free CMR methods, namely, diffusion-weighted imaging (DWI) and feature-tracking (FT) method, in detecting myocardial fibrosis. METHODS This cross-sectional study was conducted on 26 patients with HCM. Visual and quantitative comparisons were made between DWI and LGE images. Regional longitudinal, circumferential, and radial strains were compared between LGE-positive and LGE-negative segments. Moreover, global strains were compared between LGE-positive and LGE-negative patients as well as between patients with mild and marked LGE. RESULTS All 3 strains showed significant differences between LGE-positive and LGE-negative segments (P < 0.001). The regional longitudinal and circumferential strain parameters showed significant associations with LGE (P < 0.001), while regional circumferential strain was the only independent predictor of LGE in logistic regression models (OR: 1.140, 95% CI: 1.073 to 1.207, P < 0.001). A comparison of global strains between patients with LGE percentages of below 15% and above 15% demonstrated that global circumferential strain was the only parameter to show impairment in the group with marked myocardial fibrosis, with borderline significance (P=0.09). A review of 212 segments demonstrated a qualitative visual agreement between DWI and LGE in 193 segments (91%). The mean apparent diffusion coefficient was comparable between LGE-positive and LGE-negative segments (P=0.51). CONCLUSIONS FT-CMR, especially regional circumferential strain, can reliably show fibrosis-containing segments in HCM. Further, DWI can function as an efficient qualitative method for the estimation of the fibrosis extent in HCM.
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Affiliation(s)
- Maedeh Sharifian
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Nahid Rezaeian
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Sanaz Asadian
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Mohammadzadeh
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Nahardani
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Kianosh Kasani
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Yaser Toloueitabar
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Leila Hosseini
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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Fibrosis in hypertrophic cardiomyopathy: role of novel echo techniques and multi-modality imaging assessment. Heart Fail Rev 2021; 26:1297-1310. [PMID: 33990907 DOI: 10.1007/s10741-020-10058-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/16/2020] [Indexed: 12/17/2022]
Abstract
Hypertrophic cardiomyopathy (HCM) represents one of the primary cardiomyopathies and may lead to heart failure and sudden cardiac death. Among various histologic features of the disease examined, assessment of myocardial fibrosis may offer valuable information, since it may be considered the common nominator for all HCM connected complications. Late gadolinium-enhanced cardiac magnetic resonance (LGE-CMR) has emerged as the reference noninvasive method for visualizing and quantifying myocardial fibrosis in patients with HCM. T1 mapping, a promising new CMR technique, may provide an advantage over conventional LGE-CMR, by permitting a more valid quantification of diffuse fibrosis. On the other hand, echocardiography offers a significantly more portable, affordable, and easily accessible solution for the study of fibrosis. Various echocardiographic techniques ranging from integrated backscatter and contrast-enhanced ultrasound to two- (2D) or three-dimensional (3D) deformation and shear wave imaging may offer new insights into substrate characterization in HCM. The aim of this review is to describe thoroughly all different modalities that may be used in everyday clinical practice for HCM fibrosis evaluation (with special focus on echocardiographic techniques), to concisely present available evidence and to argue in favor of multi-modality imaging application. It is essential to understand that the role of various imaging modalities is not competitive but complementary, since the information provided by each one is necessary to illuminate the complex pathophysiologic pathways of HCM, offering a personalized approach and treatment in every patient.
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Charfeddine S, Abid L, Hammami R, Bahloul A, Triki F, Kammoun S. Left ventricular myocardial function in hemodialysis patients: the effects of preload decrease in conventional, Doppler and speckle tracking echocardiography parameters. Pan Afr Med J 2021; 38:45. [PMID: 33854674 PMCID: PMC8017366 DOI: 10.11604/pamj.2021.38.45.9407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 09/08/2020] [Indexed: 11/29/2022] Open
Abstract
Introduction our aim was to investigate the value of conventional echocardiography, pulsed Doppler and speckle tracking imaging (STI) analysis in the assessment of the left ventricular (LV) myocardial function in hemodialysis (HD) patients with preserved LV ejection fraction and to evaluate the effect of a single HD session on the LV systolic and diastolic functions. Methods the study population consisted of 30 chronic HD patients. Echocardiography and Doppler studies were performed before and after HD. The LV global longitudinal, circumferential and radial strains were measured with two and three-dimensional STI. Results after HD, LV dimensions, left atrium (LA) area, systolic pulmonary arterial pressure and inferior vena cava diameter decreased significantly. The peak mitral E velocity, the E/A ratio of the mitral inflow and the lateral E/E´ ratio decreased also significantly. The LV and LA volumes index and LV mass index (LVMi) decreased remarkably after HD. The 3D- LV and LA ejection fractions were unchanged after HD. Although, 3D-estimated LVEF seemed to be preserved in the HD patients, the 2D and 3D- strain rates were decreased in all directions. The global strain values improved in all directions after a single HD session. Inverse correlations were found between the LVMi, serum BNP and LV global longitudinal strain. Conclusion in HD patients with preserved LV ejection fraction, the STI analysis may add important information concerning the subclinical LV dysfunction.
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Affiliation(s)
- Salma Charfeddine
- Department of Cardiology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Leila Abid
- Department of Cardiology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Rania Hammami
- Department of Cardiology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Amine Bahloul
- Department of Cardiology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Faten Triki
- Department of Cardiology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Samir Kammoun
- Department of Cardiology, Hedi Chaker University Hospital, Sfax, Tunisia
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Romano MMD, Moreira HT, Marin-Neto JA, Baccelli PE, Alenezi F, Klem I, Maciel BC, Kisslo J, Schmidt A, Velazquez EJ. Early impairment of myocardial deformation assessed by regional speckle-tracking echocardiography in the indeterminate form of Chagas disease without fibrosis detected by cardiac magnetic resonance. PLoS Negl Trop Dis 2020; 14:e0008795. [PMID: 33253242 PMCID: PMC7728209 DOI: 10.1371/journal.pntd.0008795] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 12/10/2020] [Accepted: 09/14/2020] [Indexed: 11/18/2022] Open
Abstract
Chagas disease (CD) will account for 200,000 cardiovascular deaths worldwide over the next 5 years. Early detection of chronic Chagas cardiomyopathy (CCC) is a challenge. We aimed to test if speckle-tracking echocardiography (STE) can detect incipient myocardial damage in CD. METHODS: Among 325 individuals with positive serological tests, 25 (age 55±12yrs) were selected to compose the group with indeterminate form of Chagas disease (IFCD), based on stringent criteria of being asymptomatic and with normal EKG/X-ray studies. This group was compared with a group of 20 patients with CCC (55±11yrs) and a group of 20 non-infected matched control (NC) subjects (48±10yrs). CD patients and NC were submitted to STE and CD patients were submitted to cardiac magnetic resonance (CMR) with late gadolinium administration to detect cardiac fibrosis by the late enhancement technique. Global longitudinal strain (GLS), circumferential (GCS) and radial strain (GRS) were defined as the average of segments measured from three apical view (GLS) and short axis views (GRS and GCS). Regional left ventricular (LV) longitudinal strain (Reg LS) was measured from each of the 17 segments. Twist was measured as systolic peak difference between basal and apical rotation and indexed to LV length to express torsion. RESULTS: STE global indices (GLS, GCS, twist and torsion) were reduced in CCC vs NC (GLS: -14±6.3% vs -19.3±1.6%, p = 0.001; GCS: -13.6±5.2% vs -17.3 ±2.8%; p = 0.008; twist: 8±7° vs 14±7°, p = 0.01 and torsion: 0.96±1°/cm vs 1.9±1°/cm, p = 0.005), but showed no differences in IFCD vs NC. RegLS was reduced in IFCD vs NC in four LV segments: basal-inferior (-16.3±3.3% vs -18.6±2.2%, p = 0.013), basal inferoseptal (-13.1±3.4 vs -15.2±2.7, p = 0.019), mid-inferoseptal (-17.7±3.2 vs -19.4±2, p = 0.032) and mid-inferolateral (-15.2±3.5 vs -17.8±2.8, p = 0.014). These abnormalities in RegLS occurred in the absence of myocardial fibrosis detectable with CMR in nearly 92% of subjects with IFCD, while myocardial fibrosis was present in 65% with CCC. CONCLUSION: RegLS detects early regional impairment of myocardial strain that is independent from fibrosis in IFCD subjects. Regional longitudinal strain is reduced in IFCD before significant fibrosis. As CD progresses to CF, global STE measurements of left ventricle (GLS, GCS, twist and torsion) and GLS of right ventricle are reduced. Early abnormal strain pattern of CD comprises inferior, septoinferior and inferolateral segments of LV. Recognizing the regional strain pattern of Chagas cardiomyopathy may help identifying the disease even at early stages.
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Affiliation(s)
- Minna Moreira Dias Romano
- Cardiology Center of the Medical School of Ribeirão Preto, Internal Medicine Department, University of São Paulo (USP), Brazil
- * E-mail:
| | - Henrique Turin Moreira
- Cardiology Center of the Medical School of Ribeirão Preto, Internal Medicine Department, University of São Paulo (USP), Brazil
| | - José Antônio Marin-Neto
- Cardiology Center of the Medical School of Ribeirão Preto, Internal Medicine Department, University of São Paulo (USP), Brazil
| | - Priscila Elias Baccelli
- Cardiology Center of the Medical School of Ribeirão Preto, Internal Medicine Department, University of São Paulo (USP), Brazil
| | - Fawaz Alenezi
- Cardiology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States of America
| | - Igor Klem
- Cardiology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States of America
| | - Benedito Carlos Maciel
- Cardiology Center of the Medical School of Ribeirão Preto, Internal Medicine Department, University of São Paulo (USP), Brazil
| | - Joseph Kisslo
- Cardiology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States of America
| | - André Schmidt
- Cardiology Center of the Medical School of Ribeirão Preto, Internal Medicine Department, University of São Paulo (USP), Brazil
| | - Eric J. Velazquez
- Cardiology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States of America
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Wabich E, Dorniak K, Zienciuk-Krajka A, Nowak R, Raczak G, Daniłowicz-Szymanowicz L. Segmental longitudinal strain as the most accurate predictor of the patchy pattern late gadolinium enhancement in hypertrophic cardiomyopathy. J Cardiol 2020; 77:475-481. [PMID: 33246844 DOI: 10.1016/j.jjcc.2020.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/28/2020] [Accepted: 10/15/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND The prognostic value of myocardial fibrosis in patients with hypertrophic cardiomyopathy (HCM) has been well-established. Although cardiac magnetic resonance (CMR) is the method of choice in its revealing as the presence of late gadolinium enhancement (LGE), this technique still has limited availability in daily clinical practice. Two-dimensional speckle tracking echocardiography (2D STE) seems to be helpful in verification which HCM patient has the highest probability of LGE presence and hence needs to be qualified to CMR. While the majority of HCM patients have a patchy pattern of myocardial fibrosis, the aim of this study was to evaluate whether segmental rather than global longitudinal strain is more accurate in the identification of the presence of LGE. METHODS Forty-six HCM patients had transthoracic echocardiography and CMR imaging performed. Each patient had global longitudinal strain and rotation parameters calculated, as well as segmental analyses for wall thickness, longitudinal strain, and LGE presence based on 736 segments of the left ventricle (LV). The presence of LGE in CMR was confirmed on a per-segment basis, which was similar to LV segments in the echocardiographic examination. All patients were divided into two groups according to the CMR result: LGE (+) and LGE (-). RESULTS Receiver-operating characteristic analyses identified peak global longitudinal strain and peak twisting velocity with the cut-off values -14.4% and 116°/s respectively as the accurate predictors of LGE presence in CMR, whereas segmental longitudinal strain of -12.5% cut-off value had the highest area under the curve value (87.4%, confidence interval 84.5-90.3%), with 93.7% sensitivity, 86.5% negative predictive value, and 55% specificity. CONCLUSIONS Segmental longitudinal strain with the cut-off value of -12.5% has the highest discriminatory power for LGE presence and seems to be more adequate than global speckle tracking parameters in identification of HCM patients with strong indications for CMR for more accurate risk stratification.
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Affiliation(s)
- Elżbieta Wabich
- Department of Cardiology and Electrotherapy, Medical University of Gdansk, Dębinki 7 St., 80-211 Gdansk, Poland
| | - Karolina Dorniak
- Department of Noninvasive Cardiac Diagnostics, Medical University of Gdansk, Gdansk, Poland
| | - Agnieszka Zienciuk-Krajka
- Department of Cardiology and Electrotherapy, Medical University of Gdansk, Dębinki 7 St., 80-211 Gdansk, Poland
| | - Radosław Nowak
- Department of Cardiology and Electrotherapy, Medical University of Gdansk, Dębinki 7 St., 80-211 Gdansk, Poland
| | - Grzegorz Raczak
- Department of Cardiology and Electrotherapy, Medical University of Gdansk, Dębinki 7 St., 80-211 Gdansk, Poland
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Satriano A, Afzal Y, Sarim Afzal M, Fatehi Hassanabad A, Wu C, Dykstra S, Flewitt J, Feuchter P, Sandonato R, Heydari B, Merchant N, Howarth AG, Lydell CP, Khan A, Fine NM, Greiner R, White JA. Neural-Network-Based Diagnosis Using 3-Dimensional Myocardial Architecture and Deformation: Demonstration for the Differentiation of Hypertrophic Cardiomyopathy. Front Cardiovasc Med 2020; 7:584727. [PMID: 33304928 PMCID: PMC7693650 DOI: 10.3389/fcvm.2020.584727] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/09/2020] [Indexed: 12/24/2022] Open
Abstract
The diagnosis of cardiomyopathy states may benefit from machine-learning (ML) based approaches, particularly to distinguish those states with similar phenotypic characteristics. Three-dimensional myocardial deformation analysis (3D-MDA) has been validated to provide standardized descriptors of myocardial architecture and deformation, and may therefore offer appropriate features for the training of ML-based diagnostic tools. We aimed to assess the feasibility of automated disease diagnosis using a neural network trained using 3D-MDA to discriminate hypertrophic cardiomyopathy (HCM) from its mimic states: cardiac amyloidosis (CA), Anderson–Fabry disease (AFD), and hypertensive cardiomyopathy (HTNcm). 3D-MDA data from 163 patients (mean age 53.1 ± 14.8 years; 68 females) with left ventricular hypertrophy (LVH) of known etiology was provided. Source imaging data was from cardiac magnetic resonance (CMR). Clinical diagnoses were as follows: 85 HCM, 30 HTNcm, 30 AFD, and 18 CA. A fully-connected-layer feed-forward neural was trained to distinguish HCM vs. other mimic states. Diagnostic performance was compared to threshold-based assessments of volumetric and strain-based CMR markers, in addition to baseline clinical patient characteristics. Threshold-based measures provided modest performance, the greatest area under the curve (AUC) being 0.70. Global strain parameters exhibited reduced performance, with AUC under 0.64. A neural network trained exclusively from 3D-MDA data achieved an AUC of 0.94 (sensitivity 0.92, specificity 0.90) when performing the same task. This study demonstrates that ML-based diagnosis of cardiomyopathy states performed exclusively from 3D-MDA is feasible and can distinguish HCM from mimic disease states. These findings suggest strong potential for computer-assisted diagnosis in clinical practice.
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Affiliation(s)
| | | | | | - Ali Fatehi Hassanabad
- Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Cody Wu
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada
| | - Steven Dykstra
- Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jacqueline Flewitt
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| | | | | | - Bobak Heydari
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada
| | - Naeem Merchant
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada.,Department of Diagnostic Imaging, University of Calgary, Calgary, AB, Canada
| | - Andrew G Howarth
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| | - Carmen P Lydell
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada.,Department of Diagnostic Imaging, University of Calgary, Calgary, AB, Canada
| | - Aneal Khan
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada
| | - Nowell M Fine
- Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
| | - Russell Greiner
- Department of Computing Science, University of Alberta, Edmonton, AB, Canada.,Alberta Machine Learning Institute, Edmonton, AB, Canada
| | - James A White
- Stephenson Cardiac Imaging Center, Calgary, AB, Canada.,Division of Cardiology, School of Medicine, University of Calgary, Calgary, AB, Canada.,Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada
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34
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Wiputra H, Chan WX, Foo YY, Ho S, Yap CH. Cardiac motion estimation from medical images: a regularisation framework applied on pairwise image registration displacement fields. Sci Rep 2020; 10:18510. [PMID: 33116206 PMCID: PMC7595231 DOI: 10.1038/s41598-020-75525-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 10/06/2020] [Indexed: 11/09/2022] Open
Abstract
Accurate cardiac motion estimation from medical images such as ultrasound is important for clinical evaluation. We present a novel regularisation layer for cardiac motion estimation that will be applied after image registration and demonstrate its effectiveness. The regularisation utilises a spatio-temporal model of motion, b-splines of Fourier, to fit to displacement fields from pairwise image registration. In the process, it enforces spatial and temporal smoothness and consistency, cyclic nature of cardiac motion, and better adherence to the stroke volume of the heart. Flexibility is further given for inclusion of any set of registration displacement fields. The approach gave high accuracy. When applied to human adult Ultrasound data from a Cardiac Motion Analysis Challenge (CMAC), the proposed method is found to have 10% lower tracking error over CMAC participants. Satisfactory cardiac motion estimation is also demonstrated on other data sets, including human fetal echocardiography, chick embryonic heart ultrasound images, and zebrafish embryonic microscope images, with the average Dice coefficient between estimation motion and manual segmentation at 0.82-0.87. The approach of performing regularisation as an add-on layer after the completion of image registration is thus a viable option for cardiac motion estimation that can still have good accuracy. Since motion estimation algorithms are complex, dividing up regularisation and registration can simplify the process and provide flexibility. Further, owing to a large variety of existing registration algorithms, such an approach that is usable on any algorithm may be useful.
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Affiliation(s)
- Hadi Wiputra
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Wei Xuan Chan
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Yoke Yin Foo
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Sheldon Ho
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Choon Hwai Yap
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK.
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35
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Pagourelias ED, Mirea O, Duchenne J, Unlu S, Van Cleemput J, Papadopoulos CE, Bogaert J, Vassilikos VP, Voigt JU. Speckle tracking deformation imaging to detect regional fibrosis in hypertrophic cardiomyopathy: a comparison between 2D and 3D echo modalities. Eur Heart J Cardiovasc Imaging 2020; 21:1262-1272. [PMID: 32294170 DOI: 10.1093/ehjci/jeaa057] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 03/07/2020] [Indexed: 11/12/2022] Open
Abstract
AIMS We aimed at directly comparing three-dimensional (3D) and two-dimensional (2D) deformation parameters in hypertrophic hearts and depict which may best reflect underlying fibrosis in hypertrophic cardiomyopathy (HCM), defined by late gadolinium enhancement (LGE) in cardiac magnetic resonance (CMR). METHODS AND RESULTS We included 40 HCM [54.1 ± 14.3 years, 82.5% male, maximum wall thickness (MWT) 19.3 ± 4.8 mm] and 15 hypertensive (HTN) patients showing myocardial hypertrophy (58.1 ± 15.6 years, 80% male, MWT 12.8 ± 1.4 mm) who have consecutively undergone 2D-, 3D-speckle tracking echocardiography and LGE CMR. Deformation parameters (2D and 3D) presented overall poor to moderate correlations, with 3D_longitudinal strain (LS) and 3D_circumferential strain (CS) values being constantly higher compared to 2D derivatives. By regression analysis, hypertrophy substrate (HCM vs. hypertension) and hypertrophy magnitude were the parameters to influence 2D-3D LS and CS strain correlations (R2 = 0.66, P < 0.001 and R2 = 0.5, P = 0.001 accordingly). Among segmental deformation indices, 2D_LS showed the best area under the curve [AUC = 0.78, 95% confidence intervals (CI) (0.75-0.81), P < 0.0005] to detect fibrosis, with 3D deformation parameters showing similar AUC (0.65) and 3D_LS presenting the highest specificity [93.1%, 95% CI (90.6-95.1)]. CONCLUSIONS In hypertrophic hearts, 2D and 3D deformation parameters are not interchangeable, showing modest correlations. Thickness, substrate, and tracking algorithm calculating assumptions seem to induce this variability. Nevertheless, among HCM patients 2D_peak segmental longitudinal strain remains the best strain parameter for tissue characterization and fibrosis detection.
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Affiliation(s)
- Efstathios D Pagourelias
- Department of Cardiovascular Diseases, University Hospital Leuven, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium.,Third Cardiology Department, Hippokrateion University Hospital, Aristotle University of Thessaloniki, Konstantinoupoleos 49, 54642 Thessaloniki, Greece
| | - Oana Mirea
- Department of Cardiovascular Diseases, University Hospital Leuven, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Jürgen Duchenne
- Department of Cardiovascular Diseases, University Hospital Leuven, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Serkan Unlu
- Department of Cardiovascular Diseases, University Hospital Leuven, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Johan Van Cleemput
- Department of Cardiovascular Diseases, University Hospital Leuven, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Christodoulos E Papadopoulos
- Third Cardiology Department, Hippokrateion University Hospital, Aristotle University of Thessaloniki, Konstantinoupoleos 49, 54642 Thessaloniki, Greece
| | - Jan Bogaert
- Department of Radiology, University Hospital Leuven, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Vasilios P Vassilikos
- Third Cardiology Department, Hippokrateion University Hospital, Aristotle University of Thessaloniki, Konstantinoupoleos 49, 54642 Thessaloniki, Greece
| | - Jens-Uwe Voigt
- Department of Cardiovascular Diseases, University Hospital Leuven, Catholic University Leuven, Herestraat 49, 3000 Leuven, Belgium
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36
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Chuah SH, Md Sari NA, Chew BT, Tan LK, Chiam YK, Chan BT, Lim E, Abdul Aziz YF, Liew YM. Phenotyping of hypertensive heart disease and hypertrophic cardiomyopathy using personalized 3D modelling and cardiac cine MRI. Phys Med 2020; 78:137-149. [PMID: 33007738 DOI: 10.1016/j.ejmp.2020.08.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/08/2020] [Accepted: 08/30/2020] [Indexed: 12/24/2022] Open
Abstract
Differential diagnosis of hypertensive heart disease (HHD) and hypertrophic cardiomyopathy (HCM) is clinically challenging but important for treatment management. This study aims to phenotype HHD and HCM in 3D + time domain by using a multiparametric motion-corrected personalized modeling algorithm and cardiac magnetic resonance (CMR). 44 CMR data, including 12 healthy, 16 HHD and 16 HCM cases, were examined. Multiple CMR phenotype data consisting of geometric and dynamic variables were extracted globally and regionally from the models over a full cardiac cycle for comparison against healthy models and clinical reports. Statistical classifications were used to identify the distinctive characteristics and disease subtypes with overlapping functional data, providing insights into the challenges for differential diagnosis of both types of disease. While HCM is characterized by localized extreme hypertrophy of the LV, wall thickening/contraction/strain was found to be normal and in sync, though it was occasionally exaggerated at normotrophic/less severely hypertrophic regions during systole to preserve the overall ejection fraction (EF) and systolic functionality. Additionally, we observed that hypertrophy in HHD could also be localized, although at less extreme conditions (i.e. more concentric). While fibrosis occurs mostly in those HCM cases with aortic obstruction, only minority of HHD patients were found affected by fibrosis. We demonstrate that subgroups of HHD (i.e. preserved and reduced EF: HHDpEF & HHDrEF) have different 3D + time CMR characteristics. While HHDpEF has cardiac functions in normal range, dilation and heart failure are indicated in HHDrEF as reflected by low LV wall thickening/contraction/strain and synchrony, as well as much reduced EF.
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Affiliation(s)
- Shoon Hui Chuah
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Nor Ashikin Md Sari
- Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Bee Teng Chew
- Department of Mechanical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Li Kuo Tan
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia; University Malaya Research Imaging Centre, Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Yin Kia Chiam
- Department of Software Engineering, Faculty of Computer Science and Information Technology, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Bee Ting Chan
- Department of Mechanical, Materials and Manufacturing Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Malaysia
| | - Einly Lim
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Yang Faridah Abdul Aziz
- University Malaya Research Imaging Centre, Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Yih Miin Liew
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia.
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37
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Anghel L, Stătescu C, Șerban IL, Mărănducă MA, Butcovan D, Clement A, Bostan M, Sascău R. The Advantages of New Multimodality Imaging in Choosing the Optimal Management Strategy for Patients with Hypertrophic Cardiomyopathy. Diagnostics (Basel) 2020; 10:diagnostics10090719. [PMID: 32961665 PMCID: PMC7554758 DOI: 10.3390/diagnostics10090719] [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] [Received: 08/30/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 11/16/2022] Open
Abstract
In recent years, significant advances have been made in the diagnosis and therapeutic management of hypertrophic cardiomyopathy (HCM) patients, which has led to an important improvement in their longevity and quality of life. The use of multimodality imaging has an essential role in the diagnosis, assessing the regional distribution and severity of the disease, with important prognostic implications. At the same time, imaging contributes to the identification of optimal treatment for patients with hypertrophic cardiomyopathy, whether it is pharmaceutical, interventional or surgical treatment. Novel pharmacotherapies (like myosin inhibitors), minimally invasive procedures (such as transcatheter mitral valve repair, high-intensity focused ultrasound or radiofrequency ablation) and gene-directed approaches, may soon become alternatives for HCM patients. However, there are only few data on the early diagnosis of patients with HCM, in order to initiate treatment as soon as possible, to reduce the risk of sudden cardiac death (SCD). The aim of our review is to highlight the advantages of contemporary imaging in choosing the optimal management strategies for HCM patients, considering the novel therapies which are currently applied or studied for these patients.
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Affiliation(s)
- Larisa Anghel
- Internal Medicine Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700503 Iași, Romania; (L.A.); (M.B.); (R.S.)
- Cardiology Department, Cardiovascular Diseases Institute “Prof. Dr. George I.M.Georgescu”, 700503 Iași, Romania; (D.B.); (A.C.)
| | - Cristian Stătescu
- Internal Medicine Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700503 Iași, Romania; (L.A.); (M.B.); (R.S.)
- Cardiology Department, Cardiovascular Diseases Institute “Prof. Dr. George I.M.Georgescu”, 700503 Iași, Romania; (D.B.); (A.C.)
- Correspondence: ; Tel.: +40-0232-211834
| | - Ionela-Lăcrămioara Șerban
- Physiology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700503 Iași, Romania; (I.-L.Ș.); (M.A.M.)
| | - Minela Aida Mărănducă
- Physiology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700503 Iași, Romania; (I.-L.Ș.); (M.A.M.)
| | - Doina Butcovan
- Cardiology Department, Cardiovascular Diseases Institute “Prof. Dr. George I.M.Georgescu”, 700503 Iași, Romania; (D.B.); (A.C.)
| | - Alexandra Clement
- Cardiology Department, Cardiovascular Diseases Institute “Prof. Dr. George I.M.Georgescu”, 700503 Iași, Romania; (D.B.); (A.C.)
| | - Mădălina Bostan
- Internal Medicine Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700503 Iași, Romania; (L.A.); (M.B.); (R.S.)
- Cardiology Department, Cardiovascular Diseases Institute “Prof. Dr. George I.M.Georgescu”, 700503 Iași, Romania; (D.B.); (A.C.)
| | - Radu Sascău
- Internal Medicine Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700503 Iași, Romania; (L.A.); (M.B.); (R.S.)
- Cardiology Department, Cardiovascular Diseases Institute “Prof. Dr. George I.M.Georgescu”, 700503 Iași, Romania; (D.B.); (A.C.)
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38
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Hassan S, Barrett CJ, Crossman DJ. Imaging tools for assessment of myocardial fibrosis in humans: the need for greater detail. Biophys Rev 2020; 12:969-987. [PMID: 32705483 PMCID: PMC7429810 DOI: 10.1007/s12551-020-00738-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 07/08/2020] [Indexed: 02/06/2023] Open
Abstract
Myocardial fibrosis is recognized as a key pathological process in the development of cardiac disease and a target for future therapeutics. Despite this recognition, the assessment of fibrosis is not a part of routine clinical practice. This is primarily due to the difficulties in obtaining an accurate assessment of fibrosis non-invasively. Moreover, there is a clear discrepancy between the understandings of myocardial fibrosis clinically where fibrosis is predominately studied with comparatively low-resolution medical imaging technologies like MRI compared with the basic science laboratories where fibrosis can be visualized invasively with high resolution using molecularly specific fluorescence microscopes at the microscopic and nanoscopic scales. In this article, we will first review current medical imaging technologies for assessing fibrosis including echo and MRI. We will then highlight the need for greater microscopic and nanoscopic analysis of human tissue and how this can be addressed through greater utilization of human tissue available through endomyocardial biopsies and cardiac surgeries. We will then describe the relatively new field of molecular imaging that promises to translate research findings to the clinical practice by non-invasively monitoring the molecular signature of fibrosis in patients.
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Affiliation(s)
- Summer Hassan
- Department of Physiology, University of Auckland, Auckland, New Zealand
- Auckland City Hospital, Auckland District Health Board, Auckland, New Zealand
| | - Carolyn J Barrett
- Department of Physiology, University of Auckland, Auckland, New Zealand
| | - David J Crossman
- Department of Physiology, University of Auckland, Auckland, New Zealand.
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39
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Zacchigna S, Paldino A, Falcão-Pires I, Daskalopoulos EP, Dal Ferro M, Vodret S, Lesizza P, Cannatà A, Miranda-Silva D, Lourenço AP, Pinamonti B, Sinagra G, Weinberger F, Eschenhagen T, Carrier L, Kehat I, Tocchetti CG, Russo M, Ghigo A, Cimino J, Hirsch E, Dawson D, Ciccarelli M, Oliveti M, Linke WA, Cuijpers I, Heymans S, Hamdani N, de Boer M, Duncker DJ, Kuster D, van der Velden J, Beauloye C, Bertrand L, Mayr M, Giacca M, Leuschner F, Backs J, Thum T. Towards standardization of echocardiography for the evaluation of left ventricular function in adult rodents: a position paper of the ESC Working Group on Myocardial Function. Cardiovasc Res 2020; 117:43-59. [PMID: 32365197 DOI: 10.1093/cvr/cvaa110] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/28/2020] [Accepted: 04/24/2020] [Indexed: 12/11/2022] Open
Abstract
Echocardiography is a reliable and reproducible method to assess non-invasively cardiac function in clinical and experimental research. Significant progress in the development of echocardiographic equipment and transducers has led to the successful translation of this methodology from humans to rodents, allowing for the scoring of disease severity and progression, testing of new drugs, and monitoring cardiac function in genetically modified or pharmacologically treated animals. However, as yet, there is no standardization in the procedure to acquire echocardiographic measurements in small animals. This position paper focuses on the appropriate acquisition and analysis of echocardiographic parameters in adult mice and rats, and provides reference values, representative images, and videos for the accurate and reproducible quantification of left ventricular function in healthy and pathological conditions.
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Affiliation(s)
- Serena Zacchigna
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy.,International Center for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Alessia Paldino
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy
| | - Inês Falcão-Pires
- Cardiovascular Research and Development Center, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Evangelos P Daskalopoulos
- Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), Belgium, Brussels
| | - Matteo Dal Ferro
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy
| | - Simone Vodret
- International Center for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Pierluigi Lesizza
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy
| | - Antonio Cannatà
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy
| | - Daniela Miranda-Silva
- Cardiovascular Research and Development Center, Faculty of Medicine, University of Porto, Porto, Portugal
| | - André P Lourenço
- Cardiovascular Research and Development Center, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Bruno Pinamonti
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy
| | - Gianfranco Sinagra
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy
| | - Florian Weinberger
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Germany
| | - Thomas Eschenhagen
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Germany
| | - Lucie Carrier
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Germany
| | - Izhak Kehat
- Department of Physiology, Biophysics and System Biology, The Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Carlo G Tocchetti
- Department of Translational Medical Sciences, Federico II University, Naples, Italy.,Interdepartmental Center of Clinical and Translational Research (CIRCET), Federico II University, Naples, Italy
| | - Michele Russo
- Department of Translational Medical Sciences, Federico II University, Naples, Italy.,Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Alessandra Ghigo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - James Cimino
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Emilio Hirsch
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Dana Dawson
- School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK
| | | | | | - Wolfgang A Linke
- Institute of Physiology 2, University of Muenster, Muenster, Germany
| | - Ilona Cuijpers
- Maastricht University Medical Centre, Maastricht University, Maastricht, The Netherlands.,Center of Molecular and Vascular Biology (CMVB), KU Leuven, Leuven, Belgium
| | - Stephane Heymans
- Maastricht University Medical Centre, Maastricht University, Maastricht, The Netherlands.,Center of Molecular and Vascular Biology (CMVB), KU Leuven, Leuven, Belgium
| | - Nazha Hamdani
- Department of Molecular and Experimental Cardiology, Division Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Institute of Physiology, Ruhr University Bochum, Bochum, Germany
| | - Martine de Boer
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Diederik Kuster
- Department of Physiology, Amsterdam UMC, Vrije Universiteit, Amsterdam Cardiovascular Sciences Institute, Amsterdam, The Netherlands
| | - Jolanda van der Velden
- Department of Physiology, Amsterdam UMC, Vrije Universiteit, Amsterdam Cardiovascular Sciences Institute, Amsterdam, The Netherlands
| | - Christophe Beauloye
- Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), Belgium, Brussels.,Division of Cardiology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Luc Bertrand
- Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), Belgium, Brussels
| | - Manuel Mayr
- King's College London, British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Mauro Giacca
- Department of Medicine, Surgery and Health Sciences and Cardiovascular Department, Centre for Translational Cardiology, Azienda Sanitaria Universitaria Giuliano Isontina, strada di Fiume 447, 34149 Trieste (TS), Italy.,International Center for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy.,King's College London, British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Florian Leuschner
- Institute of Experimental Cardiology, Department of Cardiology, Angiology & Pulmology, Heidelberg University Hospital, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | - Johannes Backs
- Institute of Experimental Cardiology, Department of Cardiology, Angiology & Pulmology, Heidelberg University Hospital, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | - Thomas Thum
- Institute for Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.,REBIRTH Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
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40
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Suzuki R, Mochizuki Y, Yuchi Y, Yasumura Y, Saito T, Teshima T, Matsumoto H, Koyama H. Assessment of myocardial function in obstructive hypertrophic cardiomyopathy cats with and without response to medical treatment by carvedilol. BMC Vet Res 2019; 15:376. [PMID: 31660967 PMCID: PMC6819392 DOI: 10.1186/s12917-019-2141-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 10/14/2019] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Inconsistency of treatment response in cats with obstructive hypertrophic cardiomyopathy is well recognized. We hypothesized that the difference in response to beta-blockers may be caused by myocardial functional abnormalities. This study was designed to compare myocardial function in cats with obstructive hypertrophic cardiomyopathy with and without response to beta-blockers. Twenty-one, client-owned, hypertrophic cardiomyopathy cats treated with carvedilol were analyzed. After carvedilol treatment, cats with decreased left ventricular outflow tract velocity were categorized as responders (n = 10); those exhibiting no response (no decrease in the left ventricular outflow tract velocity) were categorized as non-responders (n = 11). The cats were examined using layer-specific assessment of the myocardial function (whole, endocardial, and epicardial layers) longitudinally and circumferentially by two-dimensional speckle-tracking echocardiography, before and after carvedilol treatment. RESULTS The non-responder cats had a significantly higher age, end-diastolic left ventricular posterior-wall thickness, peak velocity of left ventricular outflow tract, and dose of carvedilol than the responders (p = 0.04, p < 0.01, p < 0.01, and p < 0.01, respectively). The circumferential strain in the epicardial layer was lower and circumferential endocardial to epicardial strain ratio was higher in non-responders than responders (p < 0.001 and p = 0.006). According to the multivariate analysis, circumferential strain in the epicardial layer was the only independent correlate of treatment response with carvedilol. CONCLUSIONS Myocardial function, assessed by two-dimensional speckle-tracking echocardiography, differed in cats with hypertrophic cardiomyopathy with and without response to beta-blockers. The determination of layer-specific myocardial function may facilitate detailed pathophysiologic assessment and treatment response in cats with hypertrophic cardiomyopathy.
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Affiliation(s)
- Ryohei Suzuki
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan.
| | - Yohei Mochizuki
- Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoinooka, Imabari-shi, Ehime, 794-8555, Japan
| | - Yunosuke Yuchi
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Yuyo Yasumura
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Takahiro Saito
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Takahiro Teshima
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Hirotaka Matsumoto
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Hidekazu Koyama
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
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41
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Maron MS, Wells S. Myocardial Strain in Hypertrophic Cardiomyopathy. JACC Cardiovasc Imaging 2019; 12:1943-1945. [DOI: 10.1016/j.jcmg.2018.09.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/13/2018] [Accepted: 09/18/2018] [Indexed: 11/28/2022]
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Iwashima S, Hayano S, Murakami Y, Tanaka A, Joko Y, Morikawa S, Ifuku M, Iso T, Takahashi K. Cardiac Function in Infants Born to Mothers With Gestational Diabetes - Estimation of Early Diastolic Intraventricular Pressure Differences. Circ Rep 2019; 1:378-388. [PMID: 33693166 PMCID: PMC7892812 DOI: 10.1253/circrep.cr-19-0062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background:
This study compared the myocardial performance of infants born to mothers with gestational diabetes mellitus (IGDM) and without GDM (controls) under the new GDM definitions. Methods and Results:
The subjects consisted of 36 IGDM and 39 control infants. GDM diagnosis was based on oral glucose tolerance test during pregnancy or the presence of diabetes prior to the current pregnancy. Between-group infant cardiac function was determined and compared using 2-D speckle tracking analysis, intraventricular pressure difference (IVPD) and IVP gradient (IVPG), using color M-mode Doppler imaging. IVPD and IVPG were higher in IGDM than in the controls, particularly the mid–apical IVPG. The global circumferential strain (GCS) and endocardial GCS were higher in IGDM than in controls. Increased maternal glycated hemoglobin was correlated with reduced transmural and epicardial GCS in the IGDM. Maternal maximum fasting blood sugar had a mild, positive correlation with IVPD and IVPG. Conclusions:
Ventricular sucking force, measured as the IVPD, IVPG, and endocardial GCS, were higher in IGDM than in the controls. A hyperglycemic environment during pregnancy leads to impaired cardiac performance in IGDM, compared with control infants. IGDM might have favorable systolic and diastolic cardiac performance due to cardiac metabolic adaptations occurring before poor glucose control causes impaired cardiac performance.
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Affiliation(s)
- Satoru Iwashima
- Department of Pediatric Cardiology, Chutoen General Medical Center Kakegawa Japan
| | - Satoshi Hayano
- Department of Pediatric Cardiology, Chutoen General Medical Center Kakegawa Japan
| | - Yusuke Murakami
- Department of Obstetrics and Gynecology, Chutoen General Medical Center Kakegawa Japan
| | - Aki Tanaka
- Department of Obstetrics and Gynecology, Chutoen General Medical Center Kakegawa Japan
| | - Yumiko Joko
- Department of Cardiology, Chutoen General Medical Center Kakegawa Japan
| | - Shuji Morikawa
- Department of Cardiology, Chutoen General Medical Center Kakegawa Japan
| | - Mayumi Ifuku
- Department of Pediatrics, Juntendo University Faculty of Medicine Tokyo Japan
| | - Takeshi Iso
- Department of Pediatrics, Juntendo University Faculty of Medicine Tokyo Japan
| | - Ken Takahashi
- Department of Pediatrics, Juntendo University Faculty of Medicine Tokyo Japan
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43
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Cowling RT, Kupsky D, Kahn AM, Daniels LB, Greenberg BH. Mechanisms of cardiac collagen deposition in experimental models and human disease. Transl Res 2019; 209:138-155. [PMID: 30986384 PMCID: PMC6996650 DOI: 10.1016/j.trsl.2019.03.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/12/2019] [Accepted: 03/14/2019] [Indexed: 12/19/2022]
Abstract
The inappropriate deposition of extracellular matrix within the heart (termed cardiac fibrosis) is associated with nearly all types of heart disease, including ischemic, hypertensive, diabetic, and valvular. This alteration in the composition of the myocardium can physically limit cardiomyocyte contractility and relaxation, impede electrical conductivity, and hamper regional nutrient diffusion. Fibrosis can be grossly divided into 2 types, namely reparative (where collagen deposition replaces damaged myocardium) and reactive (where typically diffuse collagen deposition occurs without myocardial damage). Despite the widespread association of fibrosis with heart disease and general understanding of its negative impact on heart physiology, it is still not clear when collagen deposition becomes pathologic and translates into disease symptoms. In this review, we have summarized the current knowledge of cardiac fibrosis in human patients and experimental animal models, discussing the mechanisms that have been deduced from the latter in relation to the former. Because assessment of the extent of fibrosis is paramount both as a research tool to further understanding and as a clinical tool to assess patients, we have also summarized the current state of noninvasive/minimally invasive detection systems for cardiac fibrosis. Albeit not exhaustive, our aim is to provide an overview of the current understanding of cardiac fibrosis, both clinically and experimentally.
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Affiliation(s)
- Randy T Cowling
- Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, California.
| | - Daniel Kupsky
- Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, California
| | - Andrew M Kahn
- Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, California
| | - Lori B Daniels
- Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, California
| | - Barry H Greenberg
- Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, California
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Abstract
PURPOSE OF REVIEW This review discusses the basic and evolving echocardiographic and cardiac magnetic resonance (CMR) approaches in the diagnosis and management of patients with hypertrophic cardiomyopathy (HCM). RECENT FINDINGS Newer imaging technologies and techniques in both echocardiography and CMR have proved to add incremental value to our understanding of HCM. 3D reconstruction in echocardiography and CMR allows for more accurate morphological and volumetric assessment of the left ventricle. Echocardiographic and CMR-based left atrial assessment, including for its mechanical properties, has been shown to be correlated to outcomes and development of atrial fibrillation. Tissue characterization and scar burden quantification by late gadolinium enhancement on CMR has revolutionized our understanding of fibrotic processes in HCM and their contribution to disease severity and clinical outcomes. Cardiac imaging plays a crucial role in HCM patients. Using echocardiography and CMR as complementary modalities allows for improved diagnostics, optimization of treatment, and better prognostication.
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46
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Singh A, Voss WB, Lentz RW, Thomas JD, Akhter N. The Diagnostic and Prognostic Value of Echocardiographic Strain. JAMA Cardiol 2019; 4:580-588. [DOI: 10.1001/jamacardio.2019.1152] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Arushi Singh
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | - Robert W. Lentz
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - James D. Thomas
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Nausheen Akhter
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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47
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Latif SR, Nguyen VQ, Peters DC, Soufer A, Henry ML, Grunseich K, Testani J, Hur DJ, Huber S, Mojibian H, Dicks D, Sinusas AJ, Meadows JL, Papoutsidakis N, Jacoby D, Baldassarre LA. Left atrial fibrosis correlates with extent of left ventricular myocardial delayed enhancement and left ventricular strain in hypertrophic cardiomyopathy. Int J Cardiovasc Imaging 2019; 35:1309-1318. [PMID: 30790116 DOI: 10.1007/s10554-019-01551-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 02/02/2019] [Indexed: 12/18/2022]
Abstract
Hypertrophic cardiomyopathy (HCM) is associated with increased left ventricular (LV) mass, decreased myocardial strain, and the presence of LV fibrosis and scar. The relationship between LV scar and fibrosis with left atrial (LA) fibrosis in the setting of HCM has not been examined. The purpose of this study is to demonstrate a correlation between the degree of LA fibrosis and LV parameters in subjects with HCM. Twenty-eight subjects with HCM were imaged on a 1.5T MRI scanner with cine, LV and LA late gadolinium enhancement (LGE) sequences. LA LGE and LA measurements were correlated with LV measurements of volumes, mass, strain, and LGE. Other clinical conditions and medication usage were also examined and evaluated for correlation with LA and LV parameters. LV LGE was identified in 24 (86%) of the cases and LA LGE was identified in all of the cases. Extent of LA fibrosis significantly correlated with percent LV LGE (r = 0.64, p = 0.001), but not with indexed LV mass or maximum wall thickness. Extent of LA fibrosis also moderately correlated with decreased LV global strain (radial, r = - 0.50, p = 0.013; circumferential, r = 0.47, p = 0.02; longitudinal, r = 0.52, p = 0.013). Increased LA systolic volume correlated moderately with LV end diastolic volume (r = 0.50, p = 0.006). Patients on therapy with Renin-Angiotensin-Aldosterone System (RAAS) Inhibition had significantly less LA LGE compared to those without (18.6% vs 10.8%, p = 0.023). LA fibrosis, as measured by LGE, is prevalent in HCM and is correlated with LV LGE. The correlation between LA and LV LGE might suggest either that LA fibrosis is a consequence of LV remodeling, or that LA and LV fibrosis are both manifestations of the same cardiomyopathic process. Further study is warranted to determine the causality of LA scar in this population.
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Affiliation(s)
- Syed R Latif
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - Vinh Q Nguyen
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA.,Department of Cardiovascular Medicine, Allegheny General Hospital, 320 E North Ave, CVI 3, Pittsburgh, PA, 15212, USA
| | - Dana C Peters
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA.,Department of Radiology and Biomedical Imaging, Yale School of Medicine, PO Box 208042, New Haven, CT, 06520-8042, USA
| | - Aaron Soufer
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - Mariana L Henry
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - Karl Grunseich
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Avenue, M-391, San Francisco, CA, 94143-0628, USA
| | - Jeffrey Testani
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - David J Hur
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - Steffen Huber
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, PO Box 208042, New Haven, CT, 06520-8042, USA
| | - Hamid Mojibian
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, PO Box 208042, New Haven, CT, 06520-8042, USA
| | - Demetrius Dicks
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, PO Box 208042, New Haven, CT, 06520-8042, USA
| | - Albert J Sinusas
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA.,Department of Radiology and Biomedical Imaging, Yale School of Medicine, PO Box 208042, New Haven, CT, 06520-8042, USA
| | - Judith L Meadows
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - Nikolaos Papoutsidakis
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - Daniel Jacoby
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA
| | - Lauren A Baldassarre
- Department of Internal Medicine (Cardiology), Yale School of Medicine, 330 Cedar St, Boardman 110, P.O. Box 208056, New Haven, CT, 06520-8056, USA. .,Department of Radiology and Biomedical Imaging, Yale School of Medicine, PO Box 208042, New Haven, CT, 06520-8042, USA. .,, New Haven, CT, USA.
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Suzuki R, Mochizuki Y, Yoshimatsu H, Niina A, Teshima T, Matsumoto H, Koyama H. Layer-specific myocardial function in asymptomatic cats with obstructive hypertrophic cardiomyopathy assessed using 2-dimensional speckle-tracking echocardiography. J Vet Intern Med 2018; 33:37-45. [PMID: 30499128 PMCID: PMC6335538 DOI: 10.1111/jvim.15339] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 09/30/2018] [Accepted: 10/11/2018] [Indexed: 11/29/2022] Open
Abstract
Background Hypertrophic cardiomyopathy (HCM), a primary disorder of the myocardium, is the most common cardiac disease in cats. However, determination of layer‐specific myocardial function with 2D speckle‐tracking echocardiography in cats with asymptomatic HCM has not yet been reported. Objectives To quantitatively measure layer‐specific myocardial function of asymptomatic cats with HCM. Animals Ten client‐owned, asymptomatic cats with obstructive HCM and 13 healthy cats. Methods A retrospective, case‐control study. Cats underwent assessment of layer‐specific myocardial function (whole, endocardial, and epicardial) in the longitudinal and circumferential directions by using 2D speckle‐tracking echocardiography. Results Longitudinal strains were significantly lower in cats with HCM than controls in the whole (−15.5% vs −19.1%), endocardial (−18.3% vs −21.8%), and epicardial (−13.1% vs −16.8%) layers. Circumferential strains in whole and epicardial layers also were significantly lower in cats with HCM as compared with controls (−15.0% vs −20.2% and − 4.4% vs −9.4%, respectively). However, no significant difference was found between cats with HCM and controls in the global circumferential strain in the endocardial layer (−31.2% vs −34.2%). The circumferential endocardial‐to‐epicardial strain ratio was significantly higher in cats with HCM than in controls (6.1 vs 3.5). Conclusions and Clinical Importance Layer‐specific myocardial function assessed by 2D speckle‐tracking echocardiography differed in asymptomatic cats with obstructive HCM compared to controls despite their apparently normal systolic function, as determined by conventional echocardiography. The maintained endocardial circumferential strain and higher circumferential endocardial‐to‐epicardial strain ratio may reflect compensation for occult systolic dysfunction in cats with obstructive HCM.
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Affiliation(s)
- Ryohei Suzuki
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yohei Mochizuki
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hiroki Yoshimatsu
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Ayaka Niina
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Takahiro Teshima
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hirotaka Matsumoto
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hidekazu Koyama
- Laboratory of Veterinary Internal Medicine, Division of Therapeutic Sciences 1, Department of Veterinary Clinical Medicine, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
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49
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Is Speckle Tracking Imaging Ready for Prime Time in Current Echo Clinical Practice? Prog Cardiovasc Dis 2018; 61:437-445. [DOI: 10.1016/j.pcad.2018.11.001] [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] [Received: 11/01/2018] [Accepted: 11/01/2018] [Indexed: 12/24/2022]
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50
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Çetin S, Vural M, Akdemir R, Fırat H. Left atrial remodelling may predict exercise capacity in obstructive sleep apnoea patients. Acta Cardiol 2018; 73:471-478. [PMID: 29235925 DOI: 10.1080/00015385.2017.1414730] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Left atrial volume (LAV) and LA deformation has been proposed as a good marker of exercise performance in patients with diastolic dysfunction (DD). As DD is more prevalent in obstructive sleep apnoea (OSA) we aimed to evaluate the influence of LAV and LA deformation parameters on exercise performance in varying severity of OSA. MATERIALS AND METHODS OSA was diagnosed after polysomnography. Fifty-five OSA patients were enrolled in the study. OSA patients were divided into two groups with apnoea-hypopna-index (AHI) > 30 and <30. LAV was calculated. LA strain and LA strain rates were assessed with speckle tracking echocardiography (STE). Exercise capacity was evaluated by treadmill exercise test. RESULTS MET values were lower in group II compared to group I (p < .05). Echocardiographic findings: Comparison within groups: In both groups E/E', LA stain, LA strain rate S and LA strain rate E were higher after exercise than before (p < .05). In group I LA strain rate A was higher after exercise than before (p < .05). Comparison between groups: LA strain, LA strain rate S, LA strain rate E and LA strain rate A were lower and E/E' and LAVI were higher in group II compared to group I before and after exercise (p < .05). Correlation with METs: AHI, LVEDV, E/E' and LAVI were negatively and LA strain was positively correlated with METs (p < .05). CONCLUSIONS Left ventricular diastolic dysfunction is more prevalent in severe OSA and is associated with impaired exercise performance. Additionally, LA remodelling may predict exercise capacity in this subgroup of patients.
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Affiliation(s)
- Süha Çetin
- Department of Cardiology, Okan University Hospital , Istanbul , Turkey
| | - Mustafa Vural
- Department of Cardiology, Sakarya University School of Medicine , Sakarya , Turkey
| | - Ramazan Akdemir
- Department of Cardiology, Sakarya University School of Medicine , Sakarya , Turkey
| | - Hikmet Fırat
- Pulmonology Clinic, Ministery of Health Dışkapı Yıldırım Beyazıt Research and Educational Hospital , Ankara , Turkey
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