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Khodabakhshian N, Howell AJ, Lopez PP, Hui W, Mertens LL, Guerra VC. Impact of Genotype-Phenotype Interactions on Cardiovascular Function in Paediatric Loeys-Dietz Syndrome. CJC Pediatr Congenit Heart Dis 2024; 3:47-54. [PMID: 38774681 PMCID: PMC11103043 DOI: 10.1016/j.cjcpc.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 12/22/2023] [Indexed: 05/24/2024]
Abstract
Background The relationship between genotype and phenotypical vascular and cardiac properties in paediatric Loeys-Dietz syndrome (LDS) patients are not well characterized. This study explores the phenotypical differences in aortic properties and cardiac structural and functional parameters between paediatric LDS patients with TGFBR1 and TGFBR2 mutations. Methods We included 32 LDS patients with either TGFBR1 (n = 17) or TGFBR2 (n = 15) mutations. Echocardiographic data included aortic dimensions, distensibility, strain, and stiffness at the level of the annulus, sinuses of Valsalva, sinotubular junction, ascending aorta, and descending aorta. Parameters for left ventricular size and function were also recorded. Results Demographics were similar between the groups. Patients with TGFBR2 were more likely to have undergone aortic surgery (47% vs 12%, P = 0.057) and use angiotensin receptor blockers (93% vs 47%, P = 0.015). Aortic z scores were significantly larger in the TGFBR2 group at the level of the aortic valve annulus (P = 0.007), sinuses of Valsalva (P = 0.001), sinotubular junction (P = 0.001), and ascending aorta (P = 0.054). Patients with TGFBR2 also had significantly lower aortic distensibility and strain coupled with higher stiffness index at the level of the annulus, sinotubular junction, and ascending aorta. Parameters for the descending aorta, cardiac morphology, and cardiac function were similar between the groups. Conclusions Paediatric LDS patients with TGFBR2 present with more severe cardiovascular phenotypes than patients with TGFBR1 with larger aortic dimensions and increased aortic stiffness. Our findings suggest that genotypes should be taken into consideration in the clinical management of paediatric LDS patients.
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Affiliation(s)
- Nairy Khodabakhshian
- Department of Pediatrics, Labatt Family Heart Centre, the Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Alison J. Howell
- Department of Pediatrics, Labatt Family Heart Centre, the Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Pablo Perez Lopez
- Department of Pediatrics, Labatt Family Heart Centre, the Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
- Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda, Madrid, Spain
- Faculty of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Wei Hui
- Department of Pediatrics, Labatt Family Heart Centre, the Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Luc L. Mertens
- Department of Pediatrics, Labatt Family Heart Centre, the Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Vitor C. Guerra
- Department of Pediatrics, Labatt Family Heart Centre, the Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
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Sanchez Tijmes F, Chan VSH, Murphy J, Hashem DAL, Hanneman K, Wald RM, Thavendiranathan P, Ouzounian M, Oechslin E, Karur GR. Mitral annular disjunction on cardiac MRI: Prevalence and association with disease severity in Loeys-Dietz syndrome. Int J Cardiol 2023; 392:131276. [PMID: 37598908 DOI: 10.1016/j.ijcard.2023.131276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 08/04/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
BACKGROUND The purpose of this study was to evaluate mitral annular disjunction (MAD) on cardiac magnetic resonance imaging (MRI) in Loeys-Dietz Syndrome (LDS) and to explore its association with adverse outcomes. METHODS In this retrospective cohort study, adult patients with LDS who underwent cardiac MRI were evaluated for MAD, aortic dimensions, and ventricular volumetry. Aortic events were defined as aortic surgery and/or dissection and severe arrhythmic events as cardiac arrest or sustained ventricular tachycardia (VT). RESULTS Among 46 LDS patients (52% female, 37.2 ± 14.3 years), 17 had MAD (37%). MAD and no MAD groups were similar in age, sex, aortic dimensions and left ventricular parameters. After a clinical follow-up of 4.3 years (IQR 1.5-8.4), 3 in MAD and 4 in no MAD groups required aortic valve sparing root replacement (VSRR) and 1 in MAD developed type A dissection. Over a similar imaging follow-up period [4.1 years (IQR 2.7-9.1) vs. 3.2 years (IQR 1.0-9.0), p = 0.65], compared to baseline, increase in native aortic root size was significant only in MAD (39.4 ± 4.6 mm vs. 38.1 ± 5.3 mm, p = 0.02, 19.3 ± 2.4 mm/m2 vs. 18.7 ± 2.4 mm/m2, p = 0.01) compared to those without MAD. Patients with MAD were younger at first aortic event compared to those without (26.7 ± 11.5 years vs. 45.0 ± 14.9 years, p = 0.03). MAD distance correlated with need for VSRR, r = 0.57, p = 0.02. Two patients in the MAD group developed sustained VT. No cardiac arrest or death was observed. CONCLUSION MAD is highly prevalent in LDS, associated with progressive aortic dilatation, and aortic events at younger age. MAD may be a marker of disease severity necessitating close surveillance.
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Affiliation(s)
- Felipe Sanchez Tijmes
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, 585 University Avenue, 1 PMB-298, Toronto, Ontario M5G 2N2, Canada
| | - Victor Siang Hua Chan
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, 585 University Avenue, 1 PMB-298, Toronto, Ontario M5G 2N2, Canada
| | - Jillian Murphy
- Department of Molecular Genetics, Fred A. Litwin Family Centre for Genomic Medicine, University Health Network, University of Toronto, Ontario, Canada
| | - Dalia Abdulmonem L Hashem
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, 585 University Avenue, 1 PMB-298, Toronto, Ontario M5G 2N2, Canada
| | - Kate Hanneman
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, 585 University Avenue, 1 PMB-298, Toronto, Ontario M5G 2N2, Canada
| | - Rachel M Wald
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, 585 University Avenue, 1 PMB-298, Toronto, Ontario M5G 2N2, Canada; Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Paaladinesh Thavendiranathan
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, 585 University Avenue, 1 PMB-298, Toronto, Ontario M5G 2N2, Canada; Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Maral Ouzounian
- Division of Cardiac Surgery, Department of Surgery, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Erwin Oechslin
- Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Gauri R Karur
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, 585 University Avenue, 1 PMB-298, Toronto, Ontario M5G 2N2, Canada.
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Connell PS, Morris SA, Doan TT, Weigand J. Abnormal Left Ventricular Strain Correlates with Left Ventricular Dysfunction but not Aortic Pathology in Marfan Syndrome in Children. Pediatr Cardiol 2023; 44:1536-1545. [PMID: 37505267 DOI: 10.1007/s00246-023-03232-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023]
Abstract
Cardiomyopathy is a complication in adults with Marfan syndrome (MFS). Early recognition of MFS patients at high risk of cardiomyopathy could impact monitoring and treatment. Abnormal ventricular strain has been associated with impaired ventricular function among adults with MFS but remains understudied in children. We retrospectively analyzed a cohort of patients with MFS undergoing cardiac magnetic resonance imaging (CMR) performed in 2003-2018 at age < 19 years. Correlations were evaluated between initial global circumferential strain (GCS) and global longitudinal strain (GLS) and the outcomes of left ventricular ejection fraction (LVEF), aortic root z-score, and vertebral artery tortuosity index corrected for height (VTI-h), all measured from CMR, using Spearman correlation. In those with serial CMR, the ability of ventricular strain to predict development of abnormal LVEF within a 5-year period was assessed. A total of 31 subjects were included (median age at initial CMR 13.5 years, Q1Q3 10.7-16.2 years), with 48% (n = 15) having LVEF < 55%. Worse GCS and worse GLS were associated with lower LVEF (ρ = - 0.629, p < 0.001 and ρ = - 0.411, p = 0.030, respectively). A clinical cutoff of GCS = - 34% predicted LVEF < 55% with sensitivity = 80% and specificity = 50%. Neither GCS nor GLS was associated with aortic root z-score (GCS: p = 0.524; GLS: p = 0.624) nor VTI-h (GCS: p = 0.949; GLS: p = 0.593). Of those with LVEF ≥ 55%, initial GCS and GLS did not differ between those with later normal versus abnormal LVEF (GCS: p = 0.505; GLS: p = 0.232). In this cohort, abnormal LV strain was associated with abnormal LVEF, but not with aortic dilation or low LVEF within the 5 years post-CMR.
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Affiliation(s)
- Patrick S Connell
- Section of Pediatric Cardiology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, One Baylor Plaza, 6651 Main St., MC E2060.14, Houston, TX, 77030, USA
| | - Shaine A Morris
- Section of Pediatric Cardiology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, One Baylor Plaza, 6651 Main St., MC E2060.14, Houston, TX, 77030, USA
| | - Tam T Doan
- Section of Pediatric Cardiology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, One Baylor Plaza, 6651 Main St., MC E2060.14, Houston, TX, 77030, USA
| | - Justin Weigand
- Section of Pediatric Cardiology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, One Baylor Plaza, 6651 Main St., MC E2060.14, Houston, TX, 77030, USA.
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DiLorenzo MP, Grosse-Wortmann L. Myocardial Fibrosis in Congenital Heart Disease and the Role of MRI. Radiol Cardiothorac Imaging 2023; 5:e220255. [PMID: 37404787 PMCID: PMC10316299 DOI: 10.1148/ryct.220255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 04/10/2023] [Accepted: 04/17/2023] [Indexed: 07/06/2023]
Abstract
Progress in the field of congenital heart surgery over the last century can only be described as revolutionary. Recent improvements in patient outcomes have been achieved through refinements in perioperative care. In the current and future eras, the preservation and restoration of myocardial health, beginning with the monitoring of tissue remodeling, will be central to improving cardiac outcomes. Visualization and quantification of fibrotic myocardial remodeling is one of the greatest assets that cardiac MRI brings to the field of cardiology, and its clinical use within the field of congenital heart disease (CHD) has been an area of particular interest in the last few decades. This review summarizes the physical underpinnings of myocardial tissue characterization in CHD, with an emphasis on T1 parametric mapping and late gadolinium enhancement. It describes methods and suggestions for obtaining images, extracting quantitative and qualitative data, and interpreting the results for children and adults with CHD. The tissue characterization observed in different lesions is used to examine the causes and pathomechanisms of fibrotic remodeling in this population. Similarly, the clinical consequences of elevated imaging biomarkers of fibrosis on patient health and outcomes are explored. Keywords: Pediatrics, MR Imaging, Cardiac, Heart, Congenital, Tissue Characterization, Congenital Heart Disease, Cardiac MRI, Parametric Mapping, Fibrosis, Late Gadolinium Enhancement © RSNA, 2023.
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Al Ghamdi A, Parramón MM, Cavallé-Garrido T. Unexplained Cardiovascular Collapse After Scoliosis Surgery in a Patient With Loeys-Dietz Syndrome. CJC Pediatr Congenit Heart Dis 2023; 2:82-85. [PMID: 37970529 PMCID: PMC10642104 DOI: 10.1016/j.cjcpc.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/18/2022] [Indexed: 11/17/2023]
Affiliation(s)
- Abdulrahman Al Ghamdi
- Division of General Pediatrics, Department of Pediatrics, Montreal Children’s Hospital, McGill University Health Centre, Montréal, Québec, Canada
| | - Marina Mir Parramón
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Montreal Children Hospital, McGill University Health Centre, Montréal, Québec, Canada
| | - Tíscar Cavallé-Garrido
- Division of Cardiology, Department of Pediatrics, Montreal Children’s Hospital, McGill University Health Centre, Montréal, Québec, Canada
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Abdulmonem L Hashem D, Chan VSH, Hanneman K, Wald RM, Thavendiranathan P, Ouzounian M, Oechslin E, Karur GR. Association of Pectus Excavatum With Ventricular Remodelling and Mitral Valve Abnormalities in Marfan Syndrome. Can Assoc Radiol J 2022; 74:446-454. [PMID: 36164999 DOI: 10.1177/08465371221127236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: Marfan syndrome (MFS) is an inherited connective tissue disorder. Pectus excavatum (PEX) is common in MFS. The purpose was to evaluate the association of PEX with cardiovascular manifestations of MFS, biventricular size and function. Methods: MFS adults undergoing cardiac MRI were retrospectively evaluated. Exclusion criteria were incomplete cardiac MRI, significant artifacts, co-existent ischaemic or congenital heart disease. Haller Index (HI) ≥3.25 classified patients as PEX positive (PEX+) and PEX negative (PEX-). Cardiac MRI analysis included assessment of mitral valve prolapse (MVP), mitral annular disjunction (MAD), biventricular volumetry and aortic dimensions. Results: 212 MFS patients were included, 76 PEX+ and 136 PEX- (HI 8.3 ± 15.2 vs 2.3 ± 0.5, P < .001). PEX+ were younger (33.4 ± 12.0 vs 38.1 ± 14.3 years, P = .02) and similar in sex distribution (55% vs 63% male, P = .26) compared to PEX-. MVP and MAD were more frequent in PEX+ vs PEX- (43/76 [57%] vs 37/136 [27%], P < .001; 44/76 [58%] vs 50/136[37%], P = .003, respectively). PEX+ had higher right ventricular end-diastolic and end-systolic volumes (RVEDVi 92 ± 17mL/m2 vs 84 ± 22mL/m2, P = .04; RVESVi 44 ± 10 mL/m2 vs 39 ± 14 mL/m2, P = .02), lower RV ejection fraction (RVEF 52 ± 5% vs 55 ± 6%, P = .01) compared to PEX-. Left ventricular (LV) volumes, LVEF and aortic dimensions were similar. Conclusion: MFS adults with PEX have higher frequency of cardiac manifestations including MV abnormalities, increased RV volumes and lower RVEF compared to those without PEX. Awareness of this association is important for all radiologists who interpret aortic CT or MRI, where HI can be easily measured. PEX in MFS may suggest more severe disease expression necessitating careful screening for MV abnormalities and outcomes surveillance.
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Affiliation(s)
- Dalia Abdulmonem L Hashem
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Victor Siang Hua Chan
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Kate Hanneman
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Rachel M Wald
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, ON, Canada,Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Paaladinesh Thavendiranathan
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, ON, Canada,Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Maral Ouzounian
- Division of Cardiac Surgery, Department of Surgery, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Erwin Oechslin
- Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Gauri R Karur
- Joint Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
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Tijmes FS, Karur GR. Imaging of Heritable Thoracic Aortic Disease. Semin Roentgenol 2022; 57:364-379. [DOI: 10.1053/j.ro.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 11/11/2022]
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Lodato V, Parlapiano G, Calì F, Silvetti MS, Adorisio R, Armando M, El Hachem M, Romanzo A, Dionisi-Vici C, Digilio MC, Novelli A, Drago F, Raponi M, Baban A. Cardiomyopathies in Children and Systemic Disorders When Is It Useful to Look beyond the Heart? J Cardiovasc Dev Dis 2022; 9:47. [PMID: 35200700 PMCID: PMC8877723 DOI: 10.3390/jcdd9020047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Cardiomyopathy (CMP) is a rare disease in the pediatric population, with a high risk of morbidity and mortality. The genetic etiology of CMPs in children is extremely heterogenous. These two factors play a major role in the difficulties of establishing standard diagnostic and therapeutic protocols. Isolated CMP in children is a frequent finding, mainly caused by sarcomeric gene variants with a detection rate that can reach up to 50% of analyzed cohorts. Complex multisystemic forms of pediatric CMP are even more heterogenous. Few studies in literature take into consideration this topic as the main core since it represents a rarity (systemic CMP) within a rarity (pediatric population CMP). Identifying etiology in this cohort is essential for understanding prognosis, risk stratification, eligibility to heart transplantation and/or mechanical-assisted procedures, preventing multiorgan complications, and relatives' recurrence risk calculation. The previous points represent a cornerstone in patients' empowerment and personalized medical care approach. The aim of this work is to propose a new approach for an algorithm in the setting of the diagnostic framework of systemic pediatric CMP. On the other hand, during the literature review, we noticed a relatively common etiologic pattern in some forms of complex/multisystem CMP. In other words, certain syndromes such as Danon, Vici, Alström, Barth, and Myhre syndrome share a common pathway of directly or indirectly defective "autophagy" process, which appears to be a possible initiating/triggering factor for CMPs. This conjoint aspect could be important for possible prognostic/therapeutic implications in this category of patients. However, multicentric studies detailed functional and experimental models are needed prior to deriving conclusions.
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Affiliation(s)
- Valentina Lodato
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Giovanni Parlapiano
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
- Laboratory of Medical Genetics, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Federica Calì
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Massimo Stefano Silvetti
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Rachele Adorisio
- Heart Failure Clinic-Heart Failure, Heart Transplant, Mechanical Circulatory Support Unit, Department of Pediatric Cardiology and Cardiac Surgery, Heart and Lung Transplant, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Michela Armando
- Department of Neuroscience and Neurorehabilitation, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - May El Hachem
- Dermatology and Genodermatosis Units, Genetics and Rare Disease Research Division, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Antonino Romanzo
- Ophtalmology Unit, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Carlo Dionisi-Vici
- Division of Metabolism, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Maria Cristina Digilio
- Genetics and Rare Diseases Research Division, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Antonio Novelli
- Laboratory of Medical Genetics, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Fabrizio Drago
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Massimiliano Raponi
- Medical Direction, Bambino Gesù Children Hospital, IRCCS, 00165 Rome, Italy;
| | - Anwar Baban
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
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Parikh M, Seidman M, Oudit GY. Critical Role of Extracellular Matrix Remodeling in Dilated Cardiomyopathy: Lessons from Connective Tissue Disorders. Can J Cardiol 2022; 38:309-310. [DOI: 10.1016/j.cjca.2022.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 12/24/2022] Open
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Bartenbach L, Karall T, Koch J, Keller MA, Oberacher H, Scholl-Bürgi S, Karall D, Oemer G, Baumgartner D, Meinel K, Aly S, Odri-Komazec I, Geiger R, Michel M. Amino Acid and Phospholipid Metabolism as an Indicator of Inflammation and Subtle Cardiomyopathy in Patients with Marfan Syndrome. Metabolites 2021; 11:805. [PMID: 34940564 DOI: 10.3390/metabo11120805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/19/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022] Open
Abstract
Patients with Marfan syndrome (MFS) have an increased risk of aortic aneurysm formation, dissection and development of a subtle cardiomyopathy. We analyzed amino acid and lipid metabolic pathways in MFS patients, seeking biomarker patterns as potential monitoring tools of cardiovascular risk with deterioration of myocardial function. We assessed myocardial function in 24 adult MFS patients and compared traditional laboratory values and mass spectrometry-based amino acid, phospholipid and acylcarnitine metabolomes in patients with those in healthy controls. Analytes for which values differed between patients and controls were subjected to regression analysis. A high proportion of patients had signs of impaired diastolic function and elevated serum levels of NT-proBNP. Patients had lower serum levels of taurine, histidine and PCaeC42:3 than controls. The evidence of diastolic dysfunction, aortic root dimensions and history of aortic root surgery correlated with NT-proBNP and taurine levels. Alterations in serum levels of metabolism derived analytes link MFS pathophysiology with inflammation, oxidative stress and incipient cardiomyopathy.
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Yokota T, Koiwa H, Matsushima S, Tsujinaga S, Naya M, Morisaki H, Morisaki T. Loeys-Dietz Cardiomyopathy? Long-Term Follow-Up After Onset of Acute Decompensated Heart Failure. Can J Cardiol 2021; 38:389-391. [PMID: 34843907 DOI: 10.1016/j.cjca.2021.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 11/25/2022] Open
Abstract
Loeys-Dietz syndrome (LDS) is an inherited connective tissue disorder the phenotype of which resembles Marfan syndrome (MFS). LDS frequently affects the cardiovascular system leading to aortic aneurysm or dissection, but unlike MFS, primary cardiomyopathy is very rare in LDS, and thus the detailed clinical course of LDS-associated cardiomyopathy is unknown. We report the first case of a patient with LDS-associated cardiomyopathy whose left ventricular systolic function was reduced at the onset of acute heart failure (HF) but markedly improved by pharmacological therapy including an angiotensin-receptor blocker with no recurrence of worsening HF during 7 years of follow-up.
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Affiliation(s)
- Takashi Yokota
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - Hiroaki Koiwa
- Department of Cardiovascular Medicine, Chitose City Hospital, Chitose, Japan
| | - Shouji Matsushima
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shingo Tsujinaga
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masanao Naya
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroko Morisaki
- Department of Medical Genetics, Sakakibara Heart Institute, Tokyo, Japan
| | - Takayuki Morisaki
- Department of Internal Medicine, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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Abstract
Marfan syndrome (MFS) is a systemic connective tissue disorder that is inherited in an autosomal dominant pattern with variable penetrance. While clinically this disease manifests in many different ways, the most life-threatening manifestations are related to cardiovascular complications including mitral valve prolapse, aortic insufficiency, dilatation of the aortic root, and aortic dissection. In the past 30 years, research efforts have not only identified the genetic locus responsible but have begun to elucidate the molecular pathogenesis underlying this disorder, allowing for the development of seemingly rational therapeutic strategies for treating affected individuals. In spite of these advancements, the cardiovascular complications still remain as the most life-threatening clinical manifestations. The present chapter will focus on the pathophysiology and clinical treatment of Marfan syndrome, providing an updated overview of the recent advancements in molecular genetics research and clinical trials, with an emphasis on how this information can focus future efforts toward finding betters ways to detect, diagnose, and treat this devastating condition.
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Affiliation(s)
- Sanford M Zeigler
- Division of Cardiothoracic Surgery, Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Brandon Sloan
- Division of Cardiothoracic Surgery, Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Jeffrey A Jones
- Division of Cardiothoracic Surgery, Medical University of South Carolina and Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC, USA.
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Abstract
Genetic aortic diseases are a group of illnesses characterized by aortic aneurysms or dissection in the presence of an underlying genetic defect. They are part of the broader spectrum of heritable thoracic aortic disease, which also includes those cases of aortic aneurysm or dissection with a positive family history but in whom no genetic cause is identified. Aortic disease in these conditions is a major cause of mortality, justifying clinical and scientific emphasis on the aorta. Aortic valve disease and atrioventricular valve abnormalities are known as important additional manifestations that require careful follow-up and management. The archetype of genetic aortic disease is Marfan syndrome, caused by pathogenic variants in the Fibrillin-1 gene. Given the presence of fibrillin-1 microfibers in the myocardium, myocardial dysfunction and associated arrhythmia are conceivable and have been shown to contribute to morbidity and mortality in patients with Marfan syndrome. In this review, we will discuss data on myocardial disease from human studies as well as insights obtained from the study of mouse models of Marfan syndrome. We will elaborate on the various phenotypic presentations in childhood and in adults and on the topic of arrhythmia. We will also briefly discuss the limited data available on other genetic forms of aortic disease.
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Affiliation(s)
- Laura Muiño-Mosquera
- Department of Pediatrics, Division of Pediatric Cardiology, Ghent University Hospital, Ghent, Belgium.,Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Julie De Backer
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.,Department of Cardiology, Ghent University Hospital, Ghent, Belgium
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Muiño-Mosquera L, De Wilde H, Devos D, Babin D, Jordaens L, Demolder A, De Groote K, De Wolf D, De Backer J. Myocardial disease and ventricular arrhythmia in Marfan syndrome: a prospective study. Orphanet J Rare Dis 2020; 15:300. [PMID: 33097072 DOI: 10.1186/s13023-020-01581-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 10/13/2020] [Indexed: 01/04/2023] Open
Abstract
Background Aortic root dilatation and—dissection and mitral valve prolapse are established cardiovascular manifestations in Marfan syndrome (MFS). Heart failure and arrhythmic sudden cardiac death have emerged as additional causes of morbidity and mortality. Methods To characterize myocardial dysfunction and arrhythmia in MFS we conducted a prospective longitudinal case–control study including 86 patients with MFS (55.8% women, mean age 36.3 yr—range 13–70 yr–) and 40 age—and sex-matched healthy controls. Cardiac ultrasound, resting and ambulatory ECG (AECG) and NT-proBNP measurements were performed in all subjects at baseline. Additionally, patients with MFS underwent 2 extra evaluations during 30 ± 7 months follow-up. To study primary versus secondary myocardial involvement, patients with MFS were divided in 2 groups: without previous surgery and normal/mild valvular function (MFS-1; N = 55) and with previous surgery or valvular dysfunction (MFS-2; N = 31). Results Compared to controls, patients in MFS-1 showed mild myocardial disease reflected in a larger left ventricular end-diastolic diameter (LVEDD), lower TAPSE and higher amount of (supra) ventricular extrasystoles [(S)VES]. Patients in MFS-2 were more severely affected. Seven patients (five in MFS-2) presented decreased LV ejection fraction. Twenty patients (twelve in MFS-2) had non-sustained ventricular tachycardia (NSVT) in at least one AECG. Larger LVEDD and higher amount of VES were independently associated with NSVT. Conclusion Our study shows mild but significant myocardial involvement in patients with MFS. Patients with previous surgery or valvular dysfunction are more severely affected. Evaluation of myocardial function with echocardiography and AECG should be considered in all patients with MFS, especially in those with valvular disease and a history of cardiac surgery.
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15
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Mühlstädt K, De Backer J, von Kodolitsch Y, Kutsche K, Muiño Mosquera L, Brickwedel J, Girdauskas E, Mir TS, Mahlmann A, Tsilimparis N, Staebler A, Schoof L, Seidel H, Berger J, Bernhardt AM, Blankenberg S, Kölbel T, Detter C, Szöcs K, Kaemmerer H. Case-matched Comparison of Cardiovascular Outcome in Loeys-Dietz Syndrome versus Marfan Syndrome. J Clin Med 2019; 8:E2079. [PMID: 31795342 DOI: 10.3390/jcm8122079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 02/07/2023] Open
Abstract
Background: Pathogenic variants in TGFBR1, TGFBR2 and SMAD3 genes cause Loeys-Dietz syndrome, and pathogenic variants in FBN1 cause Marfan syndrome. Despite their similar phenotypes, both syndromes may have different cardiovascular outcomes. Methods: Three expert centers performed a case-matched comparison of cardiovascular outcomes. The Loeys-Dietz group comprised 43 men and 40 women with a mean age of 34 ± 18 years. Twenty-six individuals had pathogenic variants in TGFBR1, 40 in TGFBR2, and 17 in SMAD3. For case-matched comparison we used 83 age and sex-frequency matched individuals with Marfan syndrome. Results: In Loeys-Dietz compared to Marfan syndrome, a patent ductus arteriosus (p = 0.014) was more prevalent, the craniofacial score was higher (p < 0.001), the systemic score lower (p < 0.001), and mitral valve prolapse less frequent (p = 0.003). Mean survival for Loeys-Dietz and Marfan syndrome was similar (75 ± 3 versus 73 ± 2 years; p = 0.811). Cardiovascular outcome was comparable between Loeys-Dietz and Marfan syndrome, including mean freedom from proximal aortic surgery (53 ± 4 versus 48 ± 3 years; p = 0.589), distal aortic repair (72 ± 3 versus 67 ± 2 years; p = 0.777), mitral valve surgery (75 ± 4 versus 65 ± 3 years; p = 0.108), and reintervention (20 ± 3 versus 14 ± 2 years; p = 0.112). In Loeys-Dietz syndrome, lower age at initial presentation predicted proximal aortic surgery (HR = 0.748; p < 0.001), where receiver operating characteristic analysis identified ≤33.5 years with increased risk. In addition, increased aortic sinus diameters (HR = 6.502; p = 0.001), and higher systemic score points at least marginally (HR = 1.175; p = 0.065) related to proximal aortic surgery in Loeys-Dietz syndrome. Conclusions: Cardiovascular outcome of Loeys-Dietz syndrome was comparable to Marfan syndrome, but the severity of systemic manifestations was a predictor of proximal aortic surgery.
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