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Markousis-Mavrogenis G, Belegrinos A, Giannakopoulou A, Papavasiliou A, Koulouri V, Marketos N, Patsilinakou E, Lazarioti F, Bacopoulou F, Mavragani CP, Chrousos GP, Mavrogeni SI. Cardiovascular Magnetic Resonance Demonstrates Myocardial Inflammation of Differing Etiologies and Acuities in Patients with Genetic and Inflammatory Myopathies. J Clin Med 2023; 12:jcm12041575. [PMID: 36836108 PMCID: PMC9961874 DOI: 10.3390/jcm12041575] [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: 12/10/2022] [Revised: 01/03/2023] [Accepted: 02/09/2023] [Indexed: 02/18/2023] Open
Abstract
INTRODUCTION Myopathies are heterogeneous neuromuscular diseases of genetic and/or inflammatory etiology that affect both cardiac and skeletal muscle. We investigated the prevalence of cardiac inflammation in patients with myopathies, cardiovascular symptoms, and normal echocardiography using cardiovascular magnetic resonance (CMR). METHODS We prospectively evaluated 51 patients with various genetic (n = 23) and inflammatory (n = 28) myopathies (median age, IQR: 12 (11-15) years, 22% girls; 61 (55-65) years, 46% women, respectively) and compared their CMR findings to corresponding age- and sex-matched controls (n = 21 and 20, respectively) and to each other. RESULTS Patients with genetic myopathy had similar biventricular morphology and function to healthy controls but showed higher late gadolinium enhancement (LGE), native T1 mapping, extracellular volume fraction (ECV), and T2 mapping values. Collectively, 22 (95.7%) patients with genetic myopathy had a positive T1-criterion and 3 (13.0%) had a positive T2-criterion according to the updated Lake Louise criteria. Compared with healthy controls, patients with inflammatory myopathy showed preserved left ventricular (LV) function and reduced LV mass, while all CMR-derived tissue characterization indices were significantly higher (p < 0.001 for all). All patients had a positive T1-criterion, and 27 (96.4%) had a positive T2-criterion. A positive T2-criterion or T2-mapping > 50 ms could discriminate between patients with genetic and inflammatory myopathies with a sensitivity of 96.4% and a specificity of 91.3% (AUC = 0.9557). CONCLUSIONS The vast majority of symptomatic patients with inflammatory myopathies and normal echocardiography show evidence of acute myocardial inflammation. In contrast, acute inflammation is rare in patients with genetic myopathies, who show evidence of chronic low-grade inflammation.
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Affiliation(s)
- George Markousis-Mavrogenis
- Olympic Diagnostic/Research Center, 17674 Athens, Greece
- Onassis Cardiac Surgery Center, 17674 Athens, Greece
| | - Antonios Belegrinos
- Faculty of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece
| | | | | | - Vasiliki Koulouri
- Department of Physiology “Molecular Physiology and Clinical Applications Unit”, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Nikolaos Marketos
- Department of Physiology “Molecular Physiology and Clinical Applications Unit”, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | | | | | - Flora Bacopoulou
- University Research Institute for Maternal and Child Health and Precision Medicine, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children’s Hospital, 11527 Athens, Greece
| | - Clio P. Mavragani
- Department of Physiology “Molecular Physiology and Clinical Applications Unit”, Faculty of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Attikon Hospital, 12462 Athens, Greece
| | - George P. Chrousos
- University Research Institute for Maternal and Child Health and Precision Medicine, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children’s Hospital, 11527 Athens, Greece
| | - Sophie I. Mavrogeni
- Olympic Diagnostic/Research Center, 17674 Athens, Greece
- Onassis Cardiac Surgery Center, 17674 Athens, Greece
- University Research Institute for Maternal and Child Health and Precision Medicine, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children’s Hospital, 11527 Athens, Greece
- Correspondence:
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Yousef HA, Hamdan AES, Elminshawy A, Mohammed NAA, Ibrahim AS. Corrected calculation of the overestimated ejection fraction in valvular heart disease by phase-contrast cardiac magnetic resonance imaging for better prediction of patient morbidity. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2020. [DOI: 10.1186/s43055-019-0130-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
To establish a more accurate technique for the assessment of the left ventricular function correlated with patients’ clinical condition avoiding the miscalculation of the ejection fraction in valvular regurgitation. A prospective study carried out between July 2018 and June 2019. The studied group included 35 subjects, 25 patients with valvular regurgitation, and 10 healthy control subjects. All subjects underwent cardiovascular magnetic resonance examination to evaluate the ejection fraction by two methods: the volumetric method which assesses stroke volume via subtraction of the end-systolic volume from the end-diastolic volume, and phase-contrast method which assesses the aortic stroke volume via a through-plane phase contrast across the aortic valve. The sensitivity, specificity, P value and the area under the curve of both methods were calculated.
Results
In the healthy group, using the volumetric method, the calculated mean ejection fraction was 62.44 ± 6.61, while that calculated by the phase-contrast method was 64.34 ± 5.33, with a non-significant difference (P = 0.62) showing the validity of the phase-contrast method. In the patients’ group, by using the volumetric method, the calculated mean ejection fraction was 47.17 ± 14.31%, which was significantly higher than that calculated by the phase-contrast method (29.39 ± 7.98%) (P = 0.02). According to the results of the calculation of the ejection fraction by the volumetric method, there were 18 patients (72%) having impaired cardiac function and 7 (28%) patients of normal function; while according to the phase-contrast method, all the 25 patients had impaired cardiac function. The current study shows that the phase-contrast cardiac magnetic resonance had 89.29% sensitivity and 85.7% specificity in diagnosing impaired cardiac function with the area under the curve of 0.87 (P = 0.00).
Conclusion
The phase-contrast cardiac magnetic resonance can provide a better assessment of the ejection fraction in valvular regurgitation.
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Coupez E, Merlin C, Tuyisenge V, Sarry L, Pereira B, Lusson JR, Boyer L, Cassagnes L. Validation of cadmium-zinc-telluride camera for measurement of left ventricular systolic performance. J Nucl Cardiol 2018; 25:1029-1036. [PMID: 28194726 DOI: 10.1007/s12350-017-0816-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 01/18/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND There are paucity of data comparing measurements of left ventricular systolic performance using cadmium-zinc-telluride (CZT) semiconductor cameras with other imaging modalities. This study compared the new system with echocardiography (echo) and cardiac magnetic resonance (CMR) imaging. METHODS 60 Patients presenting with ST-elevated myocardial infarction (MI) were included. Each patient underwent echo, myocardial perfusion imaging using Spectrum Dynamics D-SPECT(r) (CZT-SPECT), and CMR 6 weeks after MI. The primary endpoint was the agreement between CZT-SPECT and CMR for left ventricular ejection fraction (LVEF) measurement. RESULTS 48 of the 60 patients underwent all 3 studies (echo, CMR, and CZT-SPECT) 40 days after admission. CZT-SPECT and CMR LVEF were well correlated (r = .79, P < .0001), as well as CZT-SPECT vs echo and CMR vs echo (r = .79 and .84, respectively, P < .0001). The segmental LV wall thickening and wall motion also showed good concordance between three techniques. CONCLUSIONS CZT-SPECT is reliable for LVEF measurement.
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Affiliation(s)
- Elisabeth Coupez
- Department of Cardiology, CHU Gabriel Montpied, Clermont-Ferrand, France.
| | - Charles Merlin
- Nuclear Medicine Department, Jean Perrin Cancer Center, Clermont-Ferrand, France
| | - Viateur Tuyisenge
- ISIT, UMR CNRS 6284, Université d'Auvergne Clermont1, Clermont-Ferrand, France
| | - Laurent Sarry
- ISIT, UMR CNRS 6284, Université d'Auvergne Clermont1, Clermont-Ferrand, France
| | - Bruno Pereira
- DRCI, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Jean René Lusson
- Department of Cardiology, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Louis Boyer
- Department of Radiology, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Lucie Cassagnes
- Department of Radiology, CHU Gabriel Montpied, Clermont-Ferrand, France
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Zweerink A, Allaart CP, Kuijer JPA, Wu L, Beek AM, van de Ven PM, Meine M, Croisille P, Clarysse P, van Rossum AC, Nijveldt R. Strain analysis in CRT candidates using the novel segment length in cine (SLICE) post-processing technique on standard CMR cine images. Eur Radiol 2017; 27:5158-5168. [PMID: 28656465 PMCID: PMC5674110 DOI: 10.1007/s00330-017-4890-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/14/2017] [Accepted: 05/11/2017] [Indexed: 01/14/2023]
Abstract
Objectives Although myocardial strain analysis is a potential tool to improve patient selection for cardiac resynchronization therapy (CRT), there is currently no validated clinical approach to derive segmental strains. We evaluated the novel segment length in cine (SLICE) technique to derive segmental strains from standard cardiovascular MR (CMR) cine images in CRT candidates. Methods Twenty-seven patients with left bundle branch block underwent CMR examination including cine imaging and myocardial tagging (CMR-TAG). SLICE was performed by measuring segment length between anatomical landmarks throughout all phases on short-axis cines. This measure of frame-to-frame segment length change was compared to CMR-TAG circumferential strain measurements. Subsequently, conventional markers of CRT response were calculated. Results Segmental strains showed good to excellent agreement between SLICE and CMR-TAG (septum strain, intraclass correlation coefficient (ICC) 0.76; lateral wall strain, ICC 0.66). Conventional markers of CRT response also showed close agreement between both methods (ICC 0.61–0.78). Reproducibility of SLICE was excellent for intra-observer testing (all ICC ≥0.76) and good for interobserver testing (all ICC ≥0.61). Conclusions The novel SLICE post-processing technique on standard CMR cine images offers both accurate and robust segmental strain measures compared to the ‘gold standard’ CMR-TAG technique, and has the advantage of being widely available. Key Points • Myocardial strain analysis could potentially improve patient selection for CRT. • Currently a well validated clinical approach to derive segmental strains is lacking. • The novel SLICE technique derives segmental strains from standard CMR cine images. • SLICE-derived strain markers of CRT response showed close agreement with CMR-TAG. • Future studies will focus on the prognostic value of SLICE in CRT candidates. Electronic supplementary material The online version of this article (doi:10.1007/s00330-017-4890-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alwin Zweerink
- Department of Cardiology, and Institute for Cardiovascular Research (ICaR-VU), VU University Medical Center, Amsterdam, The Netherlands
| | - Cornelis P Allaart
- Department of Cardiology, and Institute for Cardiovascular Research (ICaR-VU), VU University Medical Center, Amsterdam, The Netherlands
| | - Joost P A Kuijer
- Department of Physics and Medical Technology, VU University Medical Center, Amsterdam, The Netherlands
| | - LiNa Wu
- Department of Cardiology, and Institute for Cardiovascular Research (ICaR-VU), VU University Medical Center, Amsterdam, The Netherlands
| | - Aernout M Beek
- Department of Cardiology, and Institute for Cardiovascular Research (ICaR-VU), VU University Medical Center, Amsterdam, The Netherlands
| | - Peter M van de Ven
- Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
| | - Mathias Meine
- Department of Cardiology, University Medical Center, Utrecht, The Netherlands
| | - Pierre Croisille
- Univ Lyon, UJM-Saint-Etienne, INSA, CNRS UMR 5520, INSERM U1206, CREATIS, F-42023, Saint-Etienne, France
| | - Patrick Clarysse
- Univ Lyon, UJM-Saint-Etienne, INSA, CNRS UMR 5520, INSERM U1206, CREATIS, F-42023, Saint-Etienne, France
| | - Albert C van Rossum
- Department of Cardiology, and Institute for Cardiovascular Research (ICaR-VU), VU University Medical Center, Amsterdam, The Netherlands
| | - Robin Nijveldt
- Department of Cardiology, and Institute for Cardiovascular Research (ICaR-VU), VU University Medical Center, Amsterdam, The Netherlands.
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Interpretation of cardiac wall motion from cine-MRI combined with parametric imaging based on the Hilbert transform. MAGMA (NEW YORK, N.Y.) 2017; 30:347-357. [PMID: 28220266 DOI: 10.1007/s10334-017-0609-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/29/2017] [Accepted: 02/02/2017] [Indexed: 12/19/2022]
Abstract
OBJECT The aim of this study was to test and validate the clinical impact of parametric amplitude images obtained using the Hilbert transform on the regional interpretation of cardiac wall motion abnormalities from cine-MR images by non-expert radiologists compared with expert consensus. MATERIALS AND METHODS Cine-MRI short-axis images obtained in 20 patients (10 with myocardial infarction, 5 with myocarditis and 5 with normal function) were processed to compute a parametric amplitude image for each using the Hilbert transform. Two expert radiologists blindly reviewed the cine-MR images to define a gold standard for wall motion interpretation for each left ventricular sector. Two non-expert radiologists reviewed and graded the same images without and in combination with parametric images. Grades assigned to each segment in the two separate sessions were compared with the gold standard. RESULTS According to expert interpretation, 264/320 (82.5%) segments were classified as normal and 56/320 (17.5%) were considered abnormal. The accuracy of the non-expert radiologists' grades compared to the gold standard was significantly improved by adding parametric images (from 87.2 to 94.6%) together with sensitivity (from 64.29 to 84.4%) and specificity (from 92 to 96.9%), also resulting in reduced interobserver variability (from 12.8 to 5.6%). CONCLUSION The use of parametric amplitude images based on the Hilbert transform in conjunction with cine-MRI was shown to be a promising technique for improvement of the detection of left ventricular wall motion abnormalities in less expert radiologists.
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Tuyisenge V, Sarry L, Corpetti T, Innorta-Coupez E, Ouchchane L, Cassagnes L. Estimation of Myocardial Strain and Contraction Phase From Cine MRI Using Variational Data Assimilation. IEEE TRANSACTIONS ON MEDICAL IMAGING 2016; 35:442-455. [PMID: 26372228 DOI: 10.1109/tmi.2015.2478117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper presents a new method to estimate left ventricle deformations using variational data assimilation that combines image observations from cine MRI and a dynamic evolution model of the heart. The main contribution of the model is that it embeds parameters modeling the contraction / relaxation process. It estimates myocardial motion and contraction parameters simultaneously, providing accurate complementary information for diagnosis. The method was applied to synthetic datasets with known ground truth motion and to 47 patients MRI datasets acquired at three slice locations (base, mid-ventricle and apex). Radial and circumferential strain components were compared to those obtained with a reference tag tracking software, exhibiting good agreement with intraclass correlation coefficients (ICC) above 0.8. Results were also evaluated against wall motion score indices used to assess cardiac kinetics in clinical practice. The assimilation process overcame issues caused by temporal artifacts as a result of the dynamic model, compared to using the observation term alone. Moreover we found that the new dynamic model, consisting of a piecewise transport model acting independently on systole and diastole performed better than the standard continuous transport model, which oversmooths temporal variations. Estimated strain and contraction parameters significantly correlated to clinical scores, making them promising features for diagnosing not only hypokinesia but also dyskinesia.
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Garbi M, McDonagh T, Cosyns B, Bucciarelli-Ducci C, Edvardsen T, Kitsiou A, Nieman K, Lancellotti P. Appropriateness criteria for cardiovascular imaging use in heart failure: report of literature review. Eur Heart J Cardiovasc Imaging 2014; 16:147-53. [PMID: 25550363 DOI: 10.1093/ehjci/jeu299] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The Imaging Task Force appointed by the European Society of Cardiology (ESC) and the European Association of Cardiovascular Imaging (EACVI) identified the need to develop appropriateness criteria for the use of cardiovascular imaging in heart failure as a result of continuously increasing demand for imaging in diagnosis, definition of aetiology, follow-up, and treatment planning. This article presents the report of literature review performed in order to inform the process of definition of clinical indications and to aid the decisions of the appropriateness criteria voting panel. The report is structured according to identified common heart failure clinical scenarios.
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Affiliation(s)
- Madalina Garbi
- King's Health Partners, King's College Hospital NHS Foundation Trust, London, UK
| | - Theresa McDonagh
- King's Health Partners, King's College Hospital NHS Foundation Trust, London, UK
| | - Bernard Cosyns
- Universitair Ziekenhuis van Brussel, CHVZ and ICMI Laboratory, CHIREC, Brussels, Belgium
| | - Chiara Bucciarelli-Ducci
- Bristol NIHR Cardiovascular Biomedical Research Unit (BRU), Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust, University of Bristol, Bristol, UK
| | - Thor Edvardsen
- Department of Cardiology, Oslo University Hospital, Rikshospitalet and University of Oslo, Norway
| | | | - Koen Nieman
- Department of Cardiology and Radiology, Erasmus MC, Rotterdam, The Netherlands
| | - Patrizio Lancellotti
- Department of GIGA Cardiovascular Sciences, Heart Valve Clinic, Department of Cardiology, University of Liège Hospital, University Hospital SartTilman, Liège, Belgium Department of GVM Care and Research, Bologna, Italy
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Grupo de Trabajo Conjunto sobre cirugía no cardiaca: Evaluación y manejo cardiovascular de la Sociedad Europea de Cardiología (ESC) y la European Society of Anesthesiology (ESA). Rev Esp Cardiol 2014. [DOI: 10.1016/j.recesp.2014.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kristensen SD, Knuuti J, Saraste A, Anker S, Bøtker HE, De Hert S, Ford I, Juanatey JRG, Gorenek B, Heyndrickx GR, Hoeft A, Huber K, Iung B, Kjeldsen KP, Longrois D, Luescher TF, Pierard L, Pocock S, Price S, Roffi M, Sirnes PA, Uva MS, Voudris V, Funck-Brentano C. 2014 ESC/ESA Guidelines on non-cardiac surgery. Eur J Anaesthesiol 2014; 31:517-73. [DOI: 10.1097/eja.0000000000000150] [Citation(s) in RCA: 286] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Kristensen SD, Knuuti J, Saraste A, Anker S, Bøtker HE, Hert SD, Ford I, Gonzalez-Juanatey JR, Gorenek B, Heyndrickx GR, Hoeft A, Huber K, Iung B, Kjeldsen KP, Longrois D, Lüscher TF, Pierard L, Pocock S, Price S, Roffi M, Sirnes PA, Sousa-Uva M, Voudris V, Funck-Brentano C. 2014 ESC/ESA Guidelines on non-cardiac surgery: cardiovascular assessment and management: The Joint Task Force on non-cardiac surgery: cardiovascular assessment and management of the European Society of Cardiology (ESC) and the European Society of Anaesthesiology (ESA). Eur Heart J 2014; 35:2383-431. [PMID: 25086026 DOI: 10.1093/eurheartj/ehu282] [Citation(s) in RCA: 820] [Impact Index Per Article: 82.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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McMurray JJ, Adamopoulos S, Anker SD, Auricchio A, Böhm M, Dickstein K, Falk V, Filippatos G, Fonseca C, Gomez Sanchez MA, Jaarsma T, Køber L, Lip GY, Maggioni AP, Parkhomenko A, Pieske BM, Popescu BA, Rønnevik PK, Rutten FH, Schwitter J, Seferovic P, Stepinska J, Trindade PT, Voors AA, Zannad F, Zeiher A, Bax JJ, Baumgartner H, Ceconi C, Dean V, Deaton C, Fagard R, Funck-Brentano C, Hasdai D, Hoes A, Kirchhof P, Knuuti J, Kolh P, h T, Moulin C, Popescu BA, Reiner Z, Sechtem U, Sirnes PA, Tendera M, Torbicki A, Vahanian A, Windecker S, McDonagh T, Sechtem U, Almenar Bonet L, Avraamides P, Ben Lamin HA, Brignole M, Coca A, Cowburn P, Dargie H, Elliott P, Arnold Flachskampf F, Francesco Guida G, Hardman S, Iung B, Merkely B, Mueller C, Nanas JN, Nielsen OW, Ørn S, Parissis JT, Ponikowski P. Guía de práctica clínica de la ESC sobre diagnóstico y tratamiento de la insuficiencia cardiaca aguda y crónica 2012. Rev Esp Cardiol 2012. [DOI: 10.1016/j.recesp.2012.08.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Rosales XQ, Moser SJ, Tran T, McCarthy B, Dunn N, Habib P, Simonetti OP, Mendell JR, Raman SV. Cardiovascular magnetic resonance of cardiomyopathy in limb girdle muscular dystrophy 2B and 2I. J Cardiovasc Magn Reson 2011; 13:39. [PMID: 21816046 PMCID: PMC3170213 DOI: 10.1186/1532-429x-13-39] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 08/04/2011] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Limb girdle muscular dystrophies (LGMD) are inclusive of 7 autosomal dominant and 14 autosomal recessive disorders featuring progressive muscle weakness and atrophy. Studies of cardiac function have not yet been well-defined in deficiencies of dysferlin (LGMD2B) and fukutin related protein (LGMD2I). In this study of patients with these two forms of limb girdle muscular dystrophy, cardiovascular magnetic resonance (CMR) was used to more specifically define markers of cardiomyopathy including systolic dysfunction, myocardial fibrosis, and diastolic dysfunction. METHODS Consecutive patients with genetically-proven LGMD types 2I (n = 7) and 2B (n = 9) and 8 control subjects were enrolled. All subjects underwent cardiac magnetic resonance (CMR) on a standard 1.5 Tesla clinical scanner with cine imaging for left ventricular (LV) volume and ejection fraction (EF) measurement, vector velocity analysis of cine data to calculate myocardial strain, and late post-gadolinium enhancement imaging (LGE) to assess for myocardial fibrosis. RESULTS Sixteen LGMD patients (7 LGMD2I, 9 LGMD2B), and 8 control subjects completed CMR. All but one patient had normal LV size and systolic function; one (type 2I) had severe dilated cardiomyopathy. Of 15 LGMD patients with normal systolic function, LGE imaging revealed focal myocardial fibrosis in 7 (47%). Peak systolic circumferential strain rates were similar in patients vs. controls: εendo was -23.8 ± 8.5vs. -23.9 ± 4.2%, εepi was -11.5 ± 1.7% vs. -10.1 ± 4.2% (p = NS for all). Five of 7 LGE-positive patients had grade I diastolic dysfunction [2I (n = 2), 2B (n = 3)]. that was not present in any LGE-negative patients or controls. CONCLUSIONS LGMD2I and LGMD2B generally result in mild structural and functional cardiac abnormalities, though severe dilated cardiomyopathy may occur. Long-term studies are warranted to evaluate the prognostic significance of subclinical fibrosis detected by CMR in these patients.
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Affiliation(s)
- Xiomara Q Rosales
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio 43205, USA
- The Ohio State University, Department of Pediatrics and Neurology, Columbus, Ohio 43210, USA
| | - Sean J Moser
- The Ohio State University, Davis Heart and Lung Research Institute, Columbus, Ohio 43210, USA
| | - Tam Tran
- The Ohio State University, Davis Heart and Lung Research Institute, Columbus, Ohio 43210, USA
| | - Beth McCarthy
- The Ohio State University, Davis Heart and Lung Research Institute, Columbus, Ohio 43210, USA
| | - Nicholas Dunn
- The Ohio State University, Davis Heart and Lung Research Institute, Columbus, Ohio 43210, USA
| | - Philip Habib
- The Ohio State University, Davis Heart and Lung Research Institute, Columbus, Ohio 43210, USA
| | - Orlando P Simonetti
- The Ohio State University, Davis Heart and Lung Research Institute, Columbus, Ohio 43210, USA
| | - Jerry R Mendell
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio 43205, USA
- The Ohio State University, Department of Pediatrics and Neurology, Columbus, Ohio 43210, USA
| | - Subha V Raman
- The Ohio State University, Davis Heart and Lung Research Institute, Columbus, Ohio 43210, USA
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