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Stanek Sörner A, Enelund M, Cider Å, Ashman Kröönström L. Health-related quality of life in adults with Marfan syndrome. Cardiol Young 2024:1-7. [PMID: 39354855 DOI: 10.1017/s1047951124025770] [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: 10/03/2024]
Abstract
BACKGROUND AND AIM Marfan syndrome is a rare genetic connective tissue disorder. Research on health-related quality of life in Swedish patients is lacking. We aimed to examine health-related quality of life in patients with Marfan syndrome with respect to reference values, sex, and age. METHODS Using the registry for adult CHD, Sahlgrenska University Hospital/Östra Hospital, between 1 April 2009 and 31 January 2023, we identified 1916 patients. Of these, we included 33 patients aged ≥18 years who were diagnosed with Marfan syndrome and had completed the 36-item Short-Form Health Survey. RESULTS The median age was 32 years (interquartile range 25.5-47.0) and 22 (66.7%) were men. Patients with Marfan syndrome had significantly lower values than reference values for all scales in the Short-Form Health Survey except bodily pain, role-emotional, and the physical component summary score. For both men and women with Marfan syndrome, vitality was the subscale with the greatest percentage difference in comparison with healthy reference values (82% in women and 73% in men). Furthermore, men reported significantly higher vitality levels than women (62.5 points, interquartile range 43.8-75.0 vs. 35 points, interquartile range 10.0-65.0, p = 0.026). CONCLUSION Adults with Marfan syndrome in Sweden showed lower health-related quality of life levels in comparison with reference values for most Short-Form Health Survey scales, and there were differences between patients with Marfan syndrome in terms of sex and age.
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Affiliation(s)
- Anna Stanek Sörner
- Institute of Neuroscience and Physiology/Physiotherapy, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maja Enelund
- Institute of Neuroscience and Physiology/Physiotherapy, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Åsa Cider
- Institute of Neuroscience and Physiology/Physiotherapy, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Occupational and Physical Therapy Department, Sahlgrenska University Hospital, Östra Hospital, Gothenburg, Sweden
- Adult Congenital Heart Unit, Sahlgrenska University Hospital, Östra Hospital, Gothenburg, Sweden
| | - Linda Ashman Kröönström
- Institute of Neuroscience and Physiology/Physiotherapy, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Occupational and Physical Therapy Department, Sahlgrenska University Hospital, Östra Hospital, Gothenburg, Sweden
- Adult Congenital Heart Unit, Sahlgrenska University Hospital, Östra Hospital, Gothenburg, Sweden
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Jouini S, Milleron O, Eliahou L, Jondeau G, Vitiello D. Online Personal Training in Patients With Marfan Syndrome: A Randomized Controlled Study of Its Impact on Quality of Life and Physical Capacity. J Am Heart Assoc 2024; 13:e033024. [PMID: 39291498 DOI: 10.1161/jaha.123.033024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 07/10/2024] [Indexed: 09/19/2024]
Abstract
BACKGROUND Marfan syndrome (MFS) is a genetic disorder affecting the vascular and musculoskeletal systems. Limited knowledge exists regarding the exercise benefits for this population. This study aimed to explore the impact of a structured exercise program on the quality of life (QoL) and physical capabilities of patients with MFS. METHODS AND RESULTS This was a randomized, controlled, parallel-group trial. Patients with MFS were randomized in a 1:1 ratio to either a training group or a control group. The trial included a 3-month online supervised training program. Seventy patients with MFS were compared with healthy subjects. They were randomized into a training group (MFS-T) and a control group (MFS-C). The training consisted of 2 supervised online sessions weekly for 3 months. The primary outcome was QoL, assessed using the Medical Outcomes Study Short-Form 36 questionnaire. Baseline QoL in all dimensions was lower in patients with MFS. Their peak oxygen uptake was 25% lower, and muscle elasticity was diminished compared with healthy subjects. Postintervention, significant improvements were observed in the MFS-T group relative to the MFS-C group: QoL (+20.2±14.3 versus +0.7±0.5), peak oxygen uptake (+34% versus +14%), muscle elasticity index (11.5±8.2 versus +1.2±1.7), reduced blood pressures during isometric squats (systolic -19±30 versus 0±6; diastolic -27±39 versus +2±15), and reduced pulse wave velocity at rest (-1.20±1.89 versus -0.40±1.61) and postexercise (-0.42±0.45 versus +0.08±0.48). The aortic diameter remained stable in both groups (MFS-T-0.19±1.1 versus MFS-C+0.11±0.78). After training, QoL remained lower in MFS-T than in healthy subjects, but peak oxygen uptake, pulse wave velocity at rest, and postexercise were similar to those of healthy subjects. CONCLUSIONS The 3-month online training program significantly enhanced QoL and cardiovascular/muscular metrics in patients with MFS without affecting aortic root diameter, suggesting its potential as part of a management strategy for MFS. REGISTRATION URL: https://www.clinicaltrials.gov; Unique identifier: NCT04553094.
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Affiliation(s)
- Steeve Jouini
- Université Paris Cité, URP 3625-Institut des Sciences du Sport Santé de Paris (I3SP) Paris France
| | - Olivier Milleron
- Centre national de référence pour le syndrome de Marfan et pathologies apparentés Assistance Publique-Hôpitaux de Paris, Hôpital Bichat Paris France
- Service de Cardiologie, Centre National de Référence Pour le Syndrome de Marfan et Apparentés AP-HP, Hôpital Bichat Paris France
| | - Ludivine Eliahou
- Centre national de référence pour le syndrome de Marfan et pathologies apparentés Assistance Publique-Hôpitaux de Paris, Hôpital Bichat Paris France
- Service de Cardiologie, Centre National de Référence Pour le Syndrome de Marfan et Apparentés AP-HP, Hôpital Bichat Paris France
| | - Guillaume Jondeau
- Centre national de référence pour le syndrome de Marfan et pathologies apparentés Assistance Publique-Hôpitaux de Paris, Hôpital Bichat Paris France
- Service de Cardiologie, Centre National de Référence Pour le Syndrome de Marfan et Apparentés AP-HP, Hôpital Bichat Paris France
- Laboratory for Vascular Translational Science Université Paris Cité, INSERM U1148, Hôpital Bichat-Claude-Bernard Paris France
| | - Damien Vitiello
- Université Paris Cité, URP 3625-Institut des Sciences du Sport Santé de Paris (I3SP) Paris France
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Mazzolai L, Teixido-Tura G, Lanzi S, Boc V, Bossone E, Brodmann M, Bura-Rivière A, De Backer J, Deglise S, Della Corte A, Heiss C, Kałużna-Oleksy M, Kurpas D, McEniery CM, Mirault T, Pasquet AA, Pitcher A, Schaubroeck HAI, Schlager O, Sirnes PA, Sprynger MG, Stabile E, Steinbach F, Thielmann M, van Kimmenade RRJ, Venermo M, Rodriguez-Palomares JF. 2024 ESC Guidelines for the management of peripheral arterial and aortic diseases. Eur Heart J 2024; 45:3538-3700. [PMID: 39210722 DOI: 10.1093/eurheartj/ehae179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
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Baylow HE, Esfandiarei M, Ratiu I. Voice Symptoms and Quality of Life in Individuals With Marfan Syndrome: A Cross-Sectional Study. J Voice 2024; 38:1254.e1-1254.e10. [PMID: 35525628 DOI: 10.1016/j.jvoice.2022.04.003] [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: 02/22/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Marfan Syndrome (MFS) is a connective tissue disorder that affects skeletal, ocular, pulmonary, cardiovascular, and central nervous systems. Symptoms may lead to diminished quality of life (QoL) in individuals with MFS compared with healthy individuals. Currently, there is little evidence regarding the impact of MFS on voicing and QoL. This study examined perceptions of voicing difficulties and QoL among persons with MFS. METHOD A total of 356 participants with a self-reported diagnosis of MFS completed the Quality-of-Life Index (QLI) and voice handicap index-10 (VHI-10) and provided medication regime. RESULTS Some degree of voice handicap was reported by a majority of participants. Analyses assessing correlations between responses to the VHI-10, QLI scores, and reported medications were conducted. Specific medications and responses on the VHI-10 were significantly associated with QLI scores. Multiple regression analyses revealed that a summed VHI-10 score was the strongest predictor of QLI satisfaction, QLI importance, and overall QLI. CONCLUSIONS The findings of the current study suggest that individuals with MFS may experience self-perceived phonatory dysfunction which impact QoL. Specific classes of drugs may also be associated with reported voice handicap and QoL satisfaction in MFS. These findings have implications for physicians and clinicians who work with individuals with MFS.
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Affiliation(s)
- Hope E Baylow
- University of Scranton, Health and Human Performance, Scranton, Pennsylvania.
| | | | - Ileana Ratiu
- Midwestern University, Speech-Language Pathology, Glendale, Arizona
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Udugampolage N, Caruso R, Magon A, Conte G, Callus E, Dellafiore F, Pittella F, Arrigoni C, Taurino J, Pini A. Self-care behaviors and their individual-level determinants in Italian adults with Marfan syndrome: A single-center cross-sectional study. Appl Nurs Res 2024; 78:151821. [PMID: 39053986 DOI: 10.1016/j.apnr.2024.151821] [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: 11/03/2022] [Accepted: 06/25/2024] [Indexed: 07/27/2024]
Abstract
AIM This study aimed to describe the levels of self-care behaviors and self-care self-efficacy in patients with Marfan syndrome and to identify the individual-level determinants of self-care behaviors. BACKGROUND The behaviors aimed at maintaining health stability (self-care maintenance), monitoring signs and symptoms (self-care monitoring), and taking action when signs and symptoms occur (self-care management) are key aspects of the care for addressing the complexity of care of patients with Marfan syndrome. However, the description of self-care behaviors and their determinants in patients with Marfan syndrome are highly under-described. METHODS The adopted design was descriptive observational with a cross-sectional data collection on 111 patients with MFS in a single Italian specialized and reference center for this disease between 2020 and 2021. RESULTS Performing healthy activities and managing illness, therapies, and follow-ups to maintain health over time (self-care maintenance) was almost adequate (mean score = 67.87 ± 13.17), as well as the ability to recognize signs and symptoms promptly (self-care monitoring, mean score = 67.95 ± 26.70). The ability to respond to symptoms when they occur (self-care management, mean score = 54.17 ± 19.94) was sub-optimal. The stronger positive predictor of each self-care behavior was self-care self-efficacy. CONCLUSIONS This study suggested prioritizing educational activities focused on enhancing self-care management in patients with Marfan syndrome and strengthening their self-care self-efficacy. Researchers should develop and validate evidence-based educational approaches to enhance self-care in patients with Marfan syndrome, and clinical nurses should strengthen their focused educational activities to improve the self-care management of these patients.
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Affiliation(s)
- Nathasha Udugampolage
- Cardiovascular-Genetic Center, IRCCS Policlinico San Donato, San Donato Milanese, Italy; Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Rosario Caruso
- Health Professions Research and Development Unit, IRCCS Policlinico San Donato, San Donato Milanese, Italy; Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
| | - Arianna Magon
- Health Professions Research and Development Unit, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Gianluca Conte
- Health Professions Research and Development Unit, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Edward Callus
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Clinical Psychology Service, IRCCS Policlinico San Donato, Milan, Italy
| | - Federica Dellafiore
- Department of Public Health, Experimental and Forensic Medicine, Section of Hygiene, University of Pavia, Pavia, Italy
| | - Francesco Pittella
- Health Professions Research and Development Unit, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Cristina Arrigoni
- Department of Public Health, Experimental and Forensic Medicine, Section of Hygiene, University of Pavia, Pavia, Italy
| | - Jacopo Taurino
- Cardiovascular-Genetic Center, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Alessandro Pini
- Cardiovascular-Genetic Center, IRCCS Policlinico San Donato, San Donato Milanese, Italy
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Curry T, Barrameda ME, Thomas TC, Esfandiarei M. In vivo phenotypic vascular dysfunction extends beyond the aorta in a mouse model for fibrillin-1 (Fbn1) mutation. Sci Rep 2024; 14:5779. [PMID: 38461168 PMCID: PMC10924961 DOI: 10.1038/s41598-024-56438-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 03/06/2024] [Indexed: 03/11/2024] Open
Abstract
In individuals with Marfan Syndrome (MFS), fibrillin-1 gene (FBN1) mutations can lead to vascular wall weakening and dysfunction. The experimental mouse model of MFS (Fbn1C1041G/+) has been advantageous in investigating MFS-associated life-threatening aortic aneurysms. It is well established that the MFS mouse model exhibits an accelerated-aging phenotype in elastic organs like the aorta, lung, and skin. However, the impact of Fbn1 mutations on the in vivo function and structure of various artery types with the consideration of sex and age, has not been adequately explored in real-time and a clinically relevant context. In this study, we investigate if Fbn1 mutation contributes to sex-dependent alterations in central and cerebral vascular function similar to phenotypic changes associated with normal aging in healthy control mice. In vivo ultrasound imaging of central and cerebral vasculature was performed in 6-month-old male and female MFS and C57BL/6 mice and sex-matched 12-month-old (middle-aged) healthy control mice. Our findings confirm aortic enlargement (aneurysm) and wall stiffness in MFS mice, but with exacerbation in male diameters. Coronary artery blood flow velocity (BFV) in diastole was not different but left pulmonary artery BFV was decreased in MFS and 12-month-old control mice regardless of sex. At 6 months of age, MFS male mice show decreased posterior cerebral artery BFV as compared to age-matched control males, with no difference observed between female cohorts. Reduced mitral valve early-filling velocities were indicated in MFS mice regardless of sex. Male MFS mice also demonstrated left ventricular hypertrophy. Overall, these results underscore the significance of biological sex in vascular function and structure in MFS mice, while highlighting a trend of pre-mature vascular aging phenotype in MFS mice that is comparable to phenotypes observed in older healthy controls. Furthermore, this research is a vital step in understanding MFS's broader implications and sets the stage for more in-depth future analyses, while providing data-driven preclinical justification for re-evaluating diagnostic approaches and therapeutic efficacy.
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Affiliation(s)
- T Curry
- College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA
- Barrow Neurological Institute at Phoenix Children's Hospital, Phoenix, AZ, USA
| | - M E Barrameda
- Biomedical Sciences Program, College of Graduate Studies, Midwestern University, 19555 N 59th Ave., Glendale, AZ, 85308, USA
| | - T Currier Thomas
- College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA.
- Barrow Neurological Institute at Phoenix Children's Hospital, Phoenix, AZ, USA.
- Biomedical Sciences Program, College of Graduate Studies, Midwestern University, 19555 N 59th Ave., Glendale, AZ, 85308, USA.
- Arizona State University, Tempe, AZ, USA.
- Phoenix VA Health Care System, Phoenix, AZ, USA.
| | - M Esfandiarei
- College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA.
- Biomedical Sciences Program, College of Graduate Studies, Midwestern University, 19555 N 59th Ave., Glendale, AZ, 85308, USA.
- Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
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Curry T, Barrameda ME, Currier Thomas T, Esfandiarei M. In Vivo Phenotypic Vascular Dysfunction Extends Beyond the Aorta in a Mouse Model for Fibrillin-1 ( FBN1 ) Mutation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.18.567641. [PMID: 38014144 PMCID: PMC10680800 DOI: 10.1101/2023.11.18.567641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
In individuals with Marfan Syndrome (MFS), fibrillin-1 gene ( FBN1 ) mutations can lead to vascular wall weakening and dysfunction. The experimental mouse model of MFS ( FBN1 C1041G/+ ) has been advantageous in investigating MFS-associated life-threatening aortic aneurysms. Although the MFS mouse model presents an accelerated-aging phenotype in elastic organs (e.g., lung, skin), the impact of FBN1 mutations on other central and peripheral arteries function and structure with the consideration of the impact of sex remains underexplored. In this study, we investigate if FBN1 mutation contributes to sex-dependent alterations in central and cerebral vascular function similar to phenotypic changes associated with normal aging in healthy control mice. In vivo ultrasound imaging of central and cerebral vasculature was performed in 6-month-old male and female MFS and C57BL/6 mice and sex-matched 12-month-old (middle-aged) healthy control mice. Our findings confirm aortic enlargement (aneurysm) and wall stiffness in MFS mice, but with exacerbation in male diameters. Coronary artery blood flow velocity (BFV) in diastole was not different but left pulmonary artery BFV was decreased in MFS and 12-month-old control mice regardless of sex. At 6 months of age, MFS male mice show decreased posterior cerebral artery BFV as compared to age-matched control males, with no difference observed between female cohorts. Reduced mitral valve early-filling velocities were indicated in MFS mice regardless of sex. Male MFS mice also demonstrated left ventricular hypertrophy. Overall, these results underscore the significance of biological sex in vascular function and structure in MFS mice, while highlighting a trend of pre-mature vascular aging phenotype in MFS mice that is comparable to phenotypes observed in older healthy controls.
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Velvin G, Johansen H, Østertun-Geirdal A, Bathen T. Fatigue in patients with syndromic heritable thoracic aortic disease: a systematic review of the literature and a qualitative study of patients' experiences and perceptions. Orphanet J Rare Dis 2023; 18:119. [PMID: 37208760 DOI: 10.1186/s13023-023-02709-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 04/30/2023] [Indexed: 05/21/2023] Open
Abstract
INTRODUCTION The purpose of this study was to explore the literature on fatigue in patients with syndromic heritable thoracic aortic disease (sHTAD), including Marfan syndrome (MFS), Loeys-Dietz syndrome (LDS), vascular Ehlers Danlos syndrome (vEDS) and other sHTADs, critically appraise and synthesize the relevant literature. We also aimed to investigate how adults with sHTAD experience and perceive fatigue, and to discuss clinical implications and direction for further research. METHODS First, a systematic review was performed by searching the published literature in all relevant databases and other sources until 20th October 2022. Second, a qualitative focus group interview study was conducted of 36 adults with sHTADs (LDS n = 11, MFS n = 14, vEDS n = 11). RESULTS In the systematic review, 33 articles satisfied the eligibility criteria (3 reviews and 30 primary studies). Of the primary studies: 25 dealt with adults (MFS n = 17, MFS/EDS n = 1, EDS n = 2, LDS/vEDS n = 3, different sHTADs n = 2), 5 with children (MFS n = 4, different sHTADs n = 1). Twenty-two were cross-sectional quantitative studies, 4 prospective and 4 qualitative studies. The quality of the included studies was mostly good, but many had small sample sizes, low response rates and/or participants without verified diagnosis. Despite these limitations, studies indicated high prevalence of fatigue (ranging from 37 to 89%), and fatigue was associated with both health and psychosocial aspects. Few studies found that fatigue was associated with disease-related symptoms. In the qualitative focus groups most of the participants reported that they had experienced fatigue which influenced several aspects of life. Four themes related to fatigue were elucidated: (1) different diagnoses-different fatigue?, (2) the nature of fatigue, (3) searches for causes of fatigue, (4) dealing with fatigue in daily life. The four themes seemed mutually interrelated in terms of barriers, strategies and facilitators for dealing with fatigue. The participants experienced fatigue as a consistent dilemma between self-assertion and inadequacy. Fatigue seems to influence several aspects of daily life and may be one of the most debilitating symptoms of having a sHTAD. CONCLUSION Fatigue seems to negatively impact the lives of people with sHTADs and should be recognized as an important aspect in the lifelong follow-up of these patients. The life-threatening complications of sHTADs may result in emotional stress, including fatigue and the risk of developing a sedentary lifestyle. Research and clinical initiatives should consider rehabilitation interventions aiming at postponing the onset or reducing symptoms of fatigue.
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Affiliation(s)
- Gry Velvin
- TRS National Resource Centre for Rare Disorders, Sunnaas Rehabilitation Hospital, 1450, Nesoddtangen, Norway.
| | - Heidi Johansen
- TRS National Resource Centre for Rare Disorders, Sunnaas Rehabilitation Hospital, 1450, Nesoddtangen, Norway
| | - Amy Østertun-Geirdal
- Department of Social Work, Child Welfare and Social Policy, Faculty of Social Science, Oslo Metropolitan University, Oslo, Norway
| | - Trine Bathen
- TRS National Resource Centre for Rare Disorders, Sunnaas Rehabilitation Hospital, 1450, Nesoddtangen, Norway
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Identification of a Novel 15q21.1 Microdeletion in a Family with Marfan Syndrome. Genet Res (Camb) 2022; 2022:3556302. [PMID: 35440892 PMCID: PMC9005307 DOI: 10.1155/2022/3556302] [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: 04/08/2021] [Revised: 01/25/2022] [Accepted: 02/24/2022] [Indexed: 11/18/2022] Open
Abstract
Background Marfan syndrome (MFS) is a connective tissue disease involving multiple systems, with thoracic aortic aneurysm (TAA) as the most common life-threatening manifestation. Method A pedigree with TAA was investigated, and peripheral venous blood was extracted from six family members. After whole exome sequencing (WES) and chromosomal microarray analysis (CMA) in these individuals, bioinformatics and inheritance analyses were performed. Result WES revealed a novel, small, 0.76 Mb microdeletion in 15q21.1, which cosegregated with the disease phenotype in the family and led to the haploinsufficiency of the fibrillin 1 (FBN1) gene, which is associated with MFS. This small copy number variant (CNV) was confirmed by CMA. Conclusion Our study expands the phenotypic spectrum of the pathogenic CNV associated with MFS, thereby facilitating clinical genetic diagnosis and future genetic counseling for this family.
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Abstract
Marfan syndrome (MFS) is an autosomal dominant, age-related but highly penetrant condition with substantial intrafamilial and interfamilial variability. MFS is caused by pathogenetic variants in FBN1, which encodes fibrillin-1, a major structural component of the extracellular matrix that provides support to connective tissues, particularly in arteries, the pericondrium and structures in the eye. Up to 25% of individuals with MFS have de novo variants. The most prominent manifestations of MFS are asymptomatic aortic root aneurysms, aortic dissections, dislocation of the ocular lens (ectopia lentis) and skeletal abnormalities that are characterized by overgrowth of the long bones. MFS is diagnosed based on the Ghent II nosology; genetic testing confirming the presence of a FBN1 pathogenetic variant is not always required for diagnosis but can help distinguish MFS from other heritable thoracic aortic disease syndromes that can present with skeletal features similar to those in MFS. Untreated aortic root aneurysms can progress to life-threatening acute aortic dissections. Management of MFS requires medical therapy to slow the rate of growth of aneurysms and decrease the risk of dissection. Routine surveillance with imaging techniques such as transthoracic echocardiography, CT or MRI is necessary to monitor aneurysm growth and determine when to perform prophylactic repair surgery to prevent an acute aortic dissection.
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