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Ivey LC, Ahmad A, Chen J, Rodriguez Iii FH, Raskind-Hood C, Book WM. Anatomic and physiologic classification of adults with congenital heart disease to predict adverse outcomes: Use of administrative codes compared to clinical staging. Am Heart J 2024; 271:12-19. [PMID: 38367894 DOI: 10.1016/j.ahj.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND The 2018 anatomic physiologic (AP) classification American Heart Association/American College of Cardiology (AHA/ACC) Guidelines for Adults with Congenital Heart Disease (ACHD) encompasses both native and post-operative anatomy and physiology to guide care management. As some physiologic conditions and post-operative states lack specific International Classification of Diseases (ICD) 9- Clinical Modification (CM) and 10-CM codes, an ICD code-based classification approximating the ACHD AP classification is needed for population-based studies. METHODS A total of 232 individuals, aged ≥ 18 years at the time of a health encounter between January 1, 2010 and December 31, 2019 and identified with at least one of 87 ICD codes for a congenital heart defect were validated through medical chart review. Individuals were assigned one of 4 mutually exclusive modified AP classification categories: (1) severe AB, (2) severe CD, (3) non-severe AB, or (4) non-severe CD, based on native anatomy "severe" or "non-severe" and physiology AB ("none" or "mild") or CD ("moderate" or "severe") by two methods: (1) medical record review, and (2) ICD and Current Procedural Terminology (CPT) code-based classification. The composite outcome was defined as a combination of a death, emergency department (ED) visits, or any hospitalizations that occurred at least 6 months after the index date and was assessed by each modified AP classification method. RESULTS Of 232 cases (52.2% male, 71.1% White), 28.4% experienced a composite outcome a median of 1.6 years after the index encounter. No difference in prediction of the composite outcome was seen based on modified AP classification between chart review and ICD code-based methodology. CONCLUSION Modified AP classification by chart review and ICD codes are comparable in predicting the composite outcome at least 6 months after classification. Modified AP classification using ICD code-based classification of CHD native anatomy and physiology is an important tool for population-based ACHD surveillance using administrative data.
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Affiliation(s)
- Lindsey C Ivey
- Emory University Rollins School of Public Health, Department of Epidemiology, Atlanta, GA
| | - Attila Ahmad
- Gill Heart & Vascular Institute, Pavilion-G UK Albert B. Chandler Hospital, Department of Medicine and department of Pediatrics, Lexington, KY
| | | | | | - Cheryl Raskind-Hood
- Emory University Rollins School of Public Health, Department of Epidemiology, Atlanta, GA
| | - Wendy M Book
- Emory University Rollins School of Public Health, Department of Epidemiology, Atlanta, GA; Emory University School of Medicine, Cardiology, Atlanta, GA.
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Cheong D, Alloah Q, Fishbein JS, Rajagopal HG. Comparison and Agreement between Cardiovascular Computed Tomography-Derived Mid-Diastolic and End-Diastolic Ventricular Volume in Patients with Congenital Heart Disease. Pediatr Cardiol 2024:10.1007/s00246-024-03504-x. [PMID: 38689021 DOI: 10.1007/s00246-024-03504-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 04/19/2024] [Indexed: 05/02/2024]
Abstract
Prospective electrocardiogram (ECG)-triggered cardiovascular computed tomography (CCT) is primarily utilized for anatomical information in congenital heart disease (CHD) and has not been utilized for calculation of the end-diastolic volume (EDV); however, the mid-diastolic volume (MDV) may be measured. The objective of this study was to evaluate the feasibility and agreement between ventricular EDV and MDV. 31 retrospectively ECG-gated CCT were analyzed for the study of the 450 consecutive CCT. CCT images were processed using syngo.via with automatic contouring followed by manual adjustment of the endocardial borders of the left ventricles (LV) and right ventricles (RV) at end-diastolic and mid-diastolic phase (measured at 70% of cardiac cycle). The correlation and agreements between EDV and MDV were demonstrated using Spearman rank coefficient and intraclass correlation coefficient (ICC), respectively. Mean age ± SD was 28.8 ± 12.5 years, 19 were male (61.3%) and tetralogy of Fallot (TOF) was the most common diagnosis (58.1%), 35% (11/31) patients with a pacemaker, ICD or other such contraindication for a CMRI, 23% (7/31) with claustrophobia, and 6.5% (2/31) with developmental delay with refusal for sedation did not have a previous CMRI. The mean ± SD indexed LV EDV and LV MDV were 91.1 ± 24.5 and 84.8 ± 22.3 ml/m2, respectively. The mean ± SD indexed RV EDV and RV MDV were 136.8 ± 41 and 130.2 ± 41.5 ml/m2, respectively. EDV and MDV had a strong positive correlation and good agreement (ICC 0.92 for LV and 0.95 for RV). This agreement was preserved in a subset of patients (21) with dilated RV (indexed RV EDV z-score > 2). Intra-observer reliability (0.97 and 0.98 for LV and RV MDV, respectively) and inter-observer reliability (0.96 and 0.90 for LV and RV MDV, respectively) were excellent. In a select group of patients with CHD, measuring MDV by CCT is feasible and these values have good agreements with EDV. This may be used to derive functional data from prospectively ECG-triggered CCT studies. Further large-scale analysis is needed to determine accuracy and clinical correlation.
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Affiliation(s)
- Daniel Cheong
- Pediatric Cardiology, Cohen Children's Medical Center, Northwell Health, 2000 Marcus Ave, Suite 300, New Hyde Park, NY, 11042-1069, USA.
| | - Qais Alloah
- Pediatric Cardiology, Cohen Children's Medical Center, Northwell Health, 2000 Marcus Ave, Suite 300, New Hyde Park, NY, 11042-1069, USA
| | - Joanna S Fishbein
- Biostatistics Unit, Office of Academic Affairs, Northwell Health, New Hyde Park, USA
| | - Hari G Rajagopal
- Pediatric Cardiology, Cohen Children's Medical Center, Northwell Health, 2000 Marcus Ave, Suite 300, New Hyde Park, NY, 11042-1069, USA
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3
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Grassow L, Gröschel J, Saad H, Krüger LD, Kuhnt J, Müller M, Hadler T, Blaszczyk E, Schulz-Menger J. Sex-specific structural and functional cardiac remodeling during healthy aging assessed by cardiovascular magnetic resonance. Clin Res Cardiol 2024:10.1007/s00392-024-02430-5. [PMID: 38466347 DOI: 10.1007/s00392-024-02430-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/28/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND Aging as a major non-modifiable cardiac risk factor challenges future cardiovascular medicine and economic demands, which requires further assessments addressing physiological age-associated cardiac changes. OBJECTIVES Using cardiovascular magnetic resonance (CMR), this study aims to characterize sex-specific ventricular adaptations during healthy aging. METHODS The population included healthy volunteers who underwent CMR at 1.5 or 3 Tesla scanners applying cine-imaging with a short-axis coverage of the left (LV) and right (RV) ventricle. The cohort was divided by sex (female and male) and age (subgroups in years): 1 (19-29), 2 (30-39), 3 (40-49), and 4 (≥50). Cardiac adaptations were quantitatively assessed by CMR indices. RESULTS After the exclusion of missing or poor-quality CMR datasets or diagnosed disease, 140 of 203 volunteers were part of the final analysis. Women generally had smaller ventricular dimensions and LV mass, but higher biventricular systolic function. There was a significant age-associated decrease in ventricular dimensions as well as a significant increase in LV mass-to-volume ratio (LV-MVR, concentricity) in both sexes (LV-MVR in g/ml: age group 1 vs. 4: females 0.50 vs. 0.57, p=0.016, males 0.56 vs. 0.67, p=0.024). LV stroke volume index decreased significantly with age in both sexes, but stronger for men than for women (in ml/m2: age group 1 vs. 4: females 51.76 vs. 41.94, p<0.001, males 55.31 vs. 40.78, p<0.001). Ventricular proportions (RV-to-LV-volume ratio) were constant between the age groups in both sexes. CONCLUSIONS In both sexes, healthy aging was associated with an increase in concentricity and a decline in ventricular dimensions. Furthermore, relevant age-related sex differences in systolic LV performance were observed.
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Affiliation(s)
- Leonhard Grassow
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
| | - Jan Gröschel
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
- Deutsches Herzzentrum der Charité - Department of Cardiology, Angiology and Intensive Care Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - Hadil Saad
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- HELIOS Hospital Berlin-Buch - Department of Cardiology and Nephrology, Schwanebecker Chaussee 50, 13125, Berlin, Germany
| | - Leo Dyke Krüger
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
| | - Johanna Kuhnt
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
| | - Maximilian Müller
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
| | - Thomas Hadler
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
| | - Edyta Blaszczyk
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
| | - Jeanette Schulz-Menger
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, ECRC Experimental and Clinical Research Center, Lindenberger Weg 80, 13125, Berlin, Germany.
- Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center, a joint cooperation between Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Charité Campus Buch, Lindenberger Weg 80, 13125, Berlin, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany.
- HELIOS Hospital Berlin-Buch - Department of Cardiology and Nephrology, Schwanebecker Chaussee 50, 13125, Berlin, Germany.
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Cotella JI, Kovacs A, Addetia K, Fabian A, Asch FM, Lang RM. Three-dimensional echocardiographic evaluation of longitudinal and non-longitudinal components of right ventricular contraction: results from the World Alliance of Societies of Echocardiography study. Eur Heart J Cardiovasc Imaging 2024; 25:152-160. [PMID: 37602694 DOI: 10.1093/ehjci/jead213] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/21/2023] [Accepted: 08/15/2023] [Indexed: 08/22/2023] Open
Abstract
AIMS Right ventricular (RV) functional assessment is mainly limited to its longitudinal contraction. Dedicated three-dimensional echocardiography (3DE) software enabled the separate assessment of the non-longitudinal components of RV ejection fraction (EF). The aims of this study were (i) to establish normal values for RV 3D-derived longitudinal, radial, and anteroposterior EF (LEF, REF, and AEF, respectively) and their relative contributions to global RVEF, (ii) to calculate 3D RV strain normal values, and (iii) to determine sex-, age-, and race-related differences in these parameters in a large group of normal subjects (WASE study). METHODS AND RESULTS 3DE RV wide-angle datasets from 1043 prospectively enrolled healthy adult subjects were analysed to generate a 3D mesh model of the RV cavity (TomTec). Dedicated software (ReVISION) was used to analyse RV motion along the three main anatomical planes. The EF values corresponding to each plane were identified as LEF, REF, and AEF. Relative contributions were determined by dividing each EF component by the global RVEF. RV strain analysis included longitudinal, circumferential, and global area strains (GLS, GCS, and GAS, respectively). Results were categorized by sex, age (18-40, 41-65, and >65 years), and race. Absolute REF, AEF, LEF, and global RVEF were higher in women than in men (P < 0.001). With aging, both sexes exhibited a decline in all components of longitudinal shortening (P < 0.001), which was partially compensated in elderly women by an increase in radial contraction. Black subjects showed lower RVEF and GAS values compared with white and Asian subjects of the same sex (P < 0.001), and black men showed significantly higher RV radial but lower longitudinal contributions to global RVEF compared with Asian and white men. CONCLUSION 3DE evaluation of the non-longitudinal components of RV contraction provides additional information regarding RV physiology, including sex-, age-, and race-related differences in RV contraction patterns that may prove useful in disease states involving the right ventricle.
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Affiliation(s)
| | - Attila Kovacs
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | | | - Alexandra Fabian
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
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5
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Zhao X, Leng S, Tan RS, Chai P, Yeo TJ, Bryant JA, Teo LLS, Fortier MV, Ruan W, Low TT, Ong CC, Zhang S, van der Geest RJ, Allen JC, Hughes M, Garg P, Tan TH, Yip JW, Tan JL, Zhong L. Right ventricular energetic biomarkers from 4D Flow CMR are associated with exertional capacity in pulmonary arterial hypertension. J Cardiovasc Magn Reson 2022; 24:61. [PMID: 36451198 PMCID: PMC9714144 DOI: 10.1186/s12968-022-00896-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Cardiovascular magnetic resonance (CMR) offers comprehensive right ventricular (RV) evaluation in pulmonary arterial hypertension (PAH). Emerging four-dimensional (4D) flow CMR allows visualization and quantification of intracardiac flow components and calculation of phasic blood kinetic energy (KE) parameters but it is unknown whether these parameters are associated with cardiopulmonary exercise test (CPET)-assessed exercise capacity, which is a surrogate measure of survival in PAH. We compared 4D flow CMR parameters in PAH with healthy controls, and investigated the association of these parameters with RV remodelling, RV functional and CPET outcomes. METHODS PAH patients and healthy controls from two centers were prospectively enrolled to undergo on-site cine and 4D flow CMR, and CPET within one week. RV remodelling index was calculated as the ratio of RV to left ventricular (LV) end-diastolic volumes (EDV). Phasic (peak systolic, average systolic, and peak E-wave) LV and RV blood flow KE indexed to EDV (KEIEDV) and ventricular LV and RV flow components (direct flow, retained inflow, delayed ejection flow, and residual volume) were calculated. Oxygen uptake (VO2), carbon dioxide production (VCO2) and minute ventilation (VE) were measured and recorded. RESULTS 45 PAH patients (46 ± 11 years; 7 M) and 51 healthy subjects (46 ± 14 years; 17 M) with no significant differences in age and gender were analyzed. Compared with healthy controls, PAH had significantly lower median RV direct flow, RV delayed ejection flow, RV peak E-wave KEIEDV, peak VO2, and percentage (%) predicted peak VO2, while significantly higher median RV residual volume and VE/VCO2 slope. RV direct flow and RV residual volume were significantly associated with RV remodelling, function, peak VO2, % predicted peak VO2 and VE/VCO2 slope (all P < 0.01). Multiple linear regression analyses showed RV direct flow to be an independent marker of RV function, remodelling and exercise capacity. CONCLUSION In this 4D flow CMR and CPET study, RV direct flow provided incremental value over RVEF for discriminating adverse RV remodelling, impaired exercise capacity, and PAH with intermediate and high risk based on risk score. These data suggest that CMR with 4D flow CMR can provide comprehensive assessment of PAH severity, and may be used to monitor disease progression and therapeutic response. TRIAL REGISTRATION NUMBER https://www. CLINICALTRIALS gov . Unique identifier: NCT03217240.
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Affiliation(s)
- Xiaodan Zhao
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Shuang Leng
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Ru-San Tan
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Ping Chai
- National University Hospital Singapore, Singapore, Singapore.
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
| | - Tee Joo Yeo
- National University Hospital Singapore, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jennifer Ann Bryant
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Lynette L S Teo
- National University Hospital Singapore, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Marielle V Fortier
- Duke-NUS Medical School, Singapore, Singapore
- KK Women's and Children's Hospital, Singapore, Singapore
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore
| | - Wen Ruan
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Ting Ting Low
- National University Hospital Singapore, Singapore, Singapore
| | - Ching Ching Ong
- National University Hospital Singapore, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Shuo Zhang
- Philips Healthcare Germany, Hamburg, Germany
| | - Rob J van der Geest
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Marina Hughes
- Department of Cardiovascular Medicine, University of East Anglia, Norwich, UK
| | - Pankaj Garg
- Department of Cardiovascular Medicine, University of East Anglia, Norwich, UK
| | - Teng Hong Tan
- Duke-NUS Medical School, Singapore, Singapore
- KK Women's and Children's Hospital, Singapore, Singapore
| | - James W Yip
- National University Hospital Singapore, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ju Le Tan
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Liang Zhong
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore.
- Duke-NUS Medical School, Singapore, Singapore.
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6
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Zhao X, Hu L, Leng S, Tan RS, Chai P, Bryant JA, Teo LLS, Fortier MV, Yeo TJ, Ouyang RZ, Allen JC, Hughes M, Garg P, Zhang S, van der Geest RJ, Yip JW, Tan TH, Tan JL, Zhong Y, Zhong L. Ventricular flow analysis and its association with exertional capacity in repaired tetralogy of Fallot: 4D flow cardiovascular magnetic resonance study. J Cardiovasc Magn Reson 2022; 24:4. [PMID: 34980199 PMCID: PMC8722058 DOI: 10.1186/s12968-021-00832-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/23/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Four-dimensional (4D) flow cardiovascular magnetic resonance (CMR) allows quantification of biventricular blood flow by flow components and kinetic energy (KE) analyses. However, it remains unclear whether 4D flow parameters can predict cardiopulmonary exercise testing (CPET) as a clinical outcome in repaired tetralogy of Fallot (rTOF). Current study aimed to (1) compare 4D flow CMR parameters in rTOF with age- and gender-matched healthy controls, (2) investigate associations of 4D flow parameters with functional and volumetric right ventricular (RV) remodelling markers, and CPET outcome. METHODS Sixty-three rTOF patients (14 paediatric, 49 adult; 30 ± 15 years; 29 M) and 63 age- and gender-matched healthy controls (14 paediatric, 49 adult; 31 ± 15 years) were prospectively recruited at four centers. All underwent cine and 4D flow CMR, and all adults performed standardized CPET same day or within one week of CMR. RV remodelling index was calculated as the ratio of RV to left ventricular (LV) end-diastolic volumes. Four flow components were analyzed: direct flow, retained inflow, delayed ejection flow and residual volume. Additionally, three phasic KE parameters normalized to end-diastolic volume (KEiEDV), were analyzed for both LV and RV: peak systolic, average systolic and peak E-wave. RESULTS In comparisons of rTOF vs. healthy controls, median LV retained inflow (18% vs. 16%, P = 0.005) and median peak E-wave KEiEDV (34.9 µJ/ml vs. 29.2 µJ/ml, P = 0.006) were higher in rTOF; median RV direct flow was lower in rTOF (25% vs. 35%, P < 0.001); median RV delayed ejection flow (21% vs. 17%, P < 0.001) and residual volume (39% vs. 31%, P < 0.001) were both greater in rTOF. RV KEiEDV parameters were all higher in rTOF than healthy controls (all P < 0.001). On multivariate analysis, RV direct flow was an independent predictor of RV function and CPET outcome. RV direct flow and RV peak E-wave KEiEDV were independent predictors of RV remodelling index. CONCLUSIONS In this multi-scanner multicenter 4D flow CMR study, reduced RV direct flow was independently associated with RV dysfunction, remodelling and, to a lesser extent, exercise intolerance in rTOF patients. This supports its utility as an imaging parameter for monitoring disease progression and therapeutic response in rTOF. Clinical Trial Registration https://www.clinicaltrials.gov . Unique identifier: NCT03217240.
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Affiliation(s)
- Xiaodan Zhao
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Liwei Hu
- Department of Radiology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shuang Leng
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Ru-San Tan
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Ping Chai
- National University Hospital Singapore, Singapore, Singapore
| | - Jennifer Ann Bryant
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Lynette L S Teo
- National University Hospital Singapore, Singapore, Singapore
| | - Marielle V Fortier
- Duke-NUS Medical School, Singapore, Singapore
- KK Women's and Children's Hospital, Singapore, Singapore
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore
| | - Tee Joo Yeo
- National University Hospital Singapore, Singapore, Singapore
| | - Rong Zhen Ouyang
- Department of Radiology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | | | - Marina Hughes
- Department of Cardiovascular Medicine, University of East Anglia, Norwich, UK
| | - Pankaj Garg
- Department of Cardiovascular Medicine, University of East Anglia, Norwich, UK
| | - Shuo Zhang
- Philips Healthcare Germany, Hamburg, Germany
| | - Rob J van der Geest
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - James W Yip
- National University Hospital Singapore, Singapore, Singapore
| | - Teng Hong Tan
- Duke-NUS Medical School, Singapore, Singapore
- KK Women's and Children's Hospital, Singapore, Singapore
| | - Ju Le Tan
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Yumin Zhong
- Department of Radiology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Liang Zhong
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore.
- Duke-NUS Medical School, Singapore, Singapore.
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7
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Comparison of mitral regurgitation severity assessments based on magnetic resonance imaging and echocardiography in patients with hypertrophic cardiomyopathy. Sci Rep 2021; 11:19902. [PMID: 34615936 PMCID: PMC8494871 DOI: 10.1038/s41598-021-99446-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 09/27/2021] [Indexed: 12/23/2022] Open
Abstract
Mitral regurgitation (MR), which is one of the factors responsible for heart failure symptoms and the development of atrial fibrillation, is an important feature of hypertrophic cardiomyopathy (HCM), and its presence affects which treatment options are chosen. Although cardiac magnetic resonance imaging (MRI) is considered the reference standard for assessing the regurgitant volume (RV) and fraction (RF), echocardiography is the most common method for assessing MR severity. Accordingly, the aim of this study was to compare the results of echocardiography and cardiac MRI for assessing MR severity in a cohort of patients with HCM. MR severity was assessed in 53 patients using cardiac MRI by determining the mitral RV (MRV) and mitral RF (MRF). The results were graded according to thresholds recommended in current guidelines. MR severity assessed by echocardiography was graded by integrating indices of severity. Greater than mild MR, as assessed using echocardiography, was present in 22 patients (41.5%) with HCM and in none of the control patients (p = 0.001). In all, 31 patients (58.5%) had no more than mild MR. When MR severity was assessed using different methods, either moderate (kappa = 0.44, 95% confidence interval = 0.21–0.67), poor or no agreement was found between MRI-derived and echocardiography-derived grades. HCM patients with echocardiography-derived moderate and severe MR had similar median MRVs and MRFs (p = 0.59 and p = 0.11, respectively). In HCM patients, cardiac MRI and echocardiography were at most in modest agreement in assessing MR severity. Importantly, echocardiography-derived moderate and severe MR were not distinguishable by either MRV or MRF.
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8
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Kim W, Kwak JG, Kwon HW, Cho S, Kim WH, Lee JR, Min J. Pulmonary valve replacement may not restore ventricular volume and functional status in patients with pulmonary regurgitation after late tetralogy of Fallot repair. Eur J Cardiothorac Surg 2021; 61:64-72. [PMID: 34254142 DOI: 10.1093/ejcts/ezab277] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 04/12/2021] [Accepted: 04/30/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Clinically, tetralogy of Fallot (TOF) patients who underwent repair late (older than 2 years) appears to have worse outcomes after pulmonary valve replacement than patients who underwent repair early. We proceeded to review the clinical features of late-repaired TOF patients who required pulmonary valve replacement. METHODS Fifty patients who underwent pulmonary valve replacement after TOF repair over the age of 2 years from 2000 to 2018 were retrospectively reviewed. Pre- and postoperative cardiac magnetic resonance imaging, cardiopulmonary exercise tests, and cardiac catheterization were analysed. RESULTS The median age of patients at the time of TOF repair and pulmonary valve replacement was 3.6 and 23.4 years, respectively. The median interval from TOF repair to pulmonary valve replacement was 20.5 years. Cardiac magnetic resonance imaging and cardiopulmonary exercise tests were performed at a median of 5.9 and 3.7 years after pulmonary valve replacement, respectively. Cardiac magnetic resonance revealed that there were significant changes in the indexed values of the right ventricle end-diastolic volume (164.7-106.9 ml/m2, P < 0.001), end-systolic volume (101.4-64.9 ml/m2, P < 0.001), stroke volume (66.8-48.0 ml/m2, P = 0.007) and cardiac output (5.1-3.6 l/m2, P = 0.040). Twenty-eight percentage of patients achieved normalization of the right ventricular volume after pulmonary valve replacement. In the exercise test, the maximum rate of oxygen consumption (72.5-69.5%) and oxygen pulse (95.0-83.0%) changed without statistical significance. CONCLUSIONS Although pulmonary valve replacement after late TOF correction improves right ventricular volume status, only a minority of patients achieve normalization of right ventricular end systolic volume and a normal functional status.
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Affiliation(s)
- Woojung Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University, College of Medicine, Seoul, Republic of Korea
| | - Jae Gun Kwak
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University, College of Medicine, Seoul, Republic of Korea
| | - Hye Won Kwon
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Sungkyu Cho
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University, College of Medicine, Seoul, Republic of Korea
| | - Woong-Han Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University, College of Medicine, Seoul, Republic of Korea
| | - Jeong Ryul Lee
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University, College of Medicine, Seoul, Republic of Korea
| | - Jooncheol Min
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul National University, College of Medicine, Seoul, Republic of Korea
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Predictors of right ventricular function and size in patients with hypertrophic cardiomyopathy. Sci Rep 2020; 10:21054. [PMID: 33273702 PMCID: PMC7713380 DOI: 10.1038/s41598-020-78245-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/17/2020] [Indexed: 11/09/2022] Open
Abstract
We investigated factors associated with right ventricular (RV) function and size in hypertrophic cardiomyopathy (HCM) patients. Two hundred fifty-three consecutive HCM patients and 20 healthy volunteers underwent cardiac magnetic resonance examination. In addition to measuring RV function (ejection fraction—RVEF) and size (end-diastolic volume—RVEDV), each image was inspected for the presence of RV and left ventricular (LV) hypertrophy, and the maximal wall thickness of the left and right ventricles was recorded. HCM patients had higher RVEF and lower RVEDV than healthy volunteers and similar RV mass. The mean RV wall thickness was higher in HCM patients than in controls. LV late gadolinium enhancement (LGE) was present in 89.7% of patients, and RV LGE was present in 3.1% of patients (p < 0.0001). Univariate and multivariable analyses revealed that LVEF, peak LV outflow tract gradient, LV LGE, maximal LV wall thickness, and tricuspid regurgitation (TR) volume by magnetic resonance imaging were positive predictors of RVEF. In addition to TR volume, the only independent predictor of RVEF < 45% was LVEF (odds ratio = 0.80, 95% confidence interval 0.67–0.95). Multivariable analysis revealed that LVEDV and TR volume were positive predictors of RVEDV, whereas negative predictors were RVEF, maximal RV wall thickness, LV LGE, and age. Neither estimated systolic pulmonary artery pressure nor TR grade by echocardiography proved to be predictors of RVEF. There were no differences in either the maximal RV wall thickness or the maximal left ventricular (LV) wall thickness in patients stratified according to NYHA functional class (p = 0.93 and p = 0.15, respectively). There were no differences in mean RV wall thickness in patients categorised based on the number of clinical risk factors for sudden cardiac death (SCD), i.e., non-sustained ventricular tachycardia, family history of SCD, or unexplained syncope (p = 0.79). On the other hand, there was a weak positive association between RV hypertrophy and the estimated probability of SCD at 5 years (rho = 0.16, p = 0.01). RV systolic dysfunction measured as decreased RVEF was uncommon in HCM and was associated with poor LV systolic function. LV also had a significant impact on RV size.
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10
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The impact of pulmonary regurgitation on right ventricular size and function in patients with repaired tetralogy of Fallot and additional haemodynamic abnormalities. Pol J Radiol 2020; 85:e607-e612. [PMID: 33376562 PMCID: PMC7757502 DOI: 10.5114/pjr.2020.101058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 05/25/2020] [Indexed: 12/04/2022] Open
Abstract
Purpose Right ventricular (RV) outflow tract obstruction (RVOTO) was demonstrated to be protective against RV dilatation in patients with repaired tetralogy of Fallot and chronic pulmonary regurgitation (PR). We hypothesised that the presence of additional haemodynamic abnormalities (more than mild tricuspid regurgitation, residual ventricular septal defect) reduces this protective association. Accordingly, we aimed to assess the impact of PR on RV size and function in this population. Material and methods Consecutive patients with additional haemodynamic abnormalities after tetralogy of Fallot (TOF) repair, who had undergone cardiovascular magnetic resonance, were included. Results Out of 90 patients studied, 18 individuals (mean age 32.5 ± 10.7 years, 72.2% males) met the inclusion criteria. There were no differences in RV volumes and ejection fraction between patients with and without RVOTO. Neither PR fraction (PRF) nor PR volume (PRV) correlated with RV end-diastolic volume (r = 0.36; p = 0.15 and r = 0.37; p = 0.14, respectively, for PRF and PRV) or RV end-systolic volume (r = 0.2; p = 0.42 and r = 0.19; p = 0.45, respectively, for PRF and PRV). Similarly, no significant correlations were observed between PRF or PRV and RV ejection fraction (r = –0.04; p = 0.87 and r = –0.03; p = 0.9, respectively). Conclusions Additional haemodynamic abnormalities are associated with the abolition of the protective effect of RVOTO on RV size. There was no significant relationship between measures of PR and RV volumes in patients after TOF repair with concomitant haemodynamic abnormalities. These abnormalities acted as confounding factors in the assessment of the impact of pulmonary regurgitation on RV size and function.
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11
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Lakatos BK, Nabeshima Y, Tokodi M, Nagata Y, Tősér Z, Otani K, Kitano T, Fábián A, Ujvári A, Boros AM, Merkely B, Kovács A, Takeuchi M. Importance of Nonlongitudinal Motion Components in Right Ventricular Function: Three-Dimensional Echocardiographic Study in Healthy Volunteers. J Am Soc Echocardiogr 2020; 33:995-1005.e1. [PMID: 32620323 DOI: 10.1016/j.echo.2020.04.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/29/2020] [Accepted: 04/01/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Global right ventricular (RV) function is determined by the interplay of different motion components related to the myofiber architecture, and the relative importance of these components is still not thoroughly characterized. The aims of this study were to quantify the relative contributions of longitudinal, radial, and anteroposterior motion components to global RV function and to examine their determining factors in a large cohort of healthy volunteers using three-dimensional echocardiography. METHODS Three hundred healthy adults with a balanced age range and an equal sex distribution were investigated at two centers. A three-dimensional mesh model of the right ventricle was generated, and its motion was decomposed along the three anatomically relevant axes. Multiplicative relative contributions were measured by dividing the ejection fraction (EF) values generated by shortening in the longitudinal, radial, and anteroposterior directions by global RV EF (longitudinal EF index [LEFi], radial EF index [REFi], and anteroposterior EF index, respectively). The circumferential contribution was defined as shortening in the radial and anteroposterior directions, omitting only longitudinal shortening. RESULTS Circumferential EF index was markedly higher compared with LEFi (79 ± 7% vs 47 ± 9%, P < .001). LEFi (47 ± 9%) and anteroposterior EF index (49 ± 7%) were found to be similar in the pooled population, whereas REFi (44 ± 10%) was lower (P < .001). In younger individuals (20-39 years of age), the relative contribution of longitudinal shortening was significantly higher compared with the radial component; however, in the older age groups, LEFi and REFi were comparable. Age, body surface area, heart rate, and RV end-diastolic volume were independent predictors of LEFi and REFi, but all with opposite effects on the two motion directions. CONCLUSIONS In contrast to the traditional viewpoint, the contributions of the radial and anteroposterior motion directions may be of comparable significance with that of longitudinal shortening in determining global RV function. Standard parameters referring only to longitudinal shortening of the right ventricle may be inadequate to characterize RV function thoroughly.
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Affiliation(s)
| | - Yosuke Nabeshima
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Márton Tokodi
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | - Yasufumi Nagata
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | | | - Kyoko Otani
- Department of Laboratory and Transfusion Medicine, Hospital of University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Tetsuji Kitano
- Department of Laboratory and Transfusion Medicine, Hospital of University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Alexandra Fábián
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | - Adrienn Ujvári
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | | | - Béla Merkely
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary
| | - Attila Kovács
- Semmelweis University, Heart and Vascular Center, Budapest, Hungary.
| | - Masaaki Takeuchi
- Department of Laboratory and Transfusion Medicine, Hospital of University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
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Reference values for mid-diastolic right ventricular volume in population referred for cardiac computed tomography: An additional diagnostic value to cardiac computed tomography. J Cardiovasc Comput Tomogr 2020; 14:226-232. [DOI: 10.1016/j.jcct.2019.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/19/2019] [Accepted: 11/20/2019] [Indexed: 11/17/2022]
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Right to Left Ventricular Diameter Ratio ≥0.42 is the Warning Flag for Suspecting Atrial Septal Defect in Preschool Children: Age- and Body Surface Area-Related Reference Values Determined by M-Mode Echocardiography. Pediatr Cardiol 2016; 37:704-13. [PMID: 26700967 DOI: 10.1007/s00246-015-1334-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/15/2015] [Indexed: 10/22/2022]
Abstract
It is not always easy to observe and screen atrial septal defects (ASD) using echocardiography. In addition, there are no established echocardiographic reference indices for screening patients with ASDs. We retrospectively reviewed our database and recruited 151 isolated ASD patients and 2769 healthy subjects. In total, 307 echocardiographic studies were performed for ASD patients. Surgical repairs were done in 75 of the ASD patients. The ratio of right to left ventricular end-diastolic dimensions (RVD/LVD), which was determined by M-mode echocardiography, was used as an index of RV dilatation. After obtaining age- and body surface area (BSA)-related RVD/LVD nomograms in healthy subjects, we calculated the z-scores of RVD/LVD for all subjects and obtained the optimal cut-off values to differentiate patients with ASD from healthy subjects. The optimal cut-off values were high in neonates and gradually decreased with an increase in the age and BSA, but were almost constant in children aged >4 years or whose BSA was >0.65 m(2). The cut-off values of RVD/LVD for suspected ASD were ≥0.42 in children aged >4 years or those whose BSA was >0.65 m(2). Those for an ASD operation were ≥0.46 in those whose BSA > 0.65 m(2). The RVD/LVD determined by M-mode echocardiography is a useful index to evaluate RV dilatation in patients with ASDs. The RVD/LVD ≥ 0.42 is the warning flag for suspecting ASD in preschool children and that ≥0.46 may be a clinical important sign to determine ASD operation.
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Hashimoto I, Watanabe K. Geometry-Related Right Ventricular Systolic Function Assessed by Longitudinal and Radial Right Ventricular Contractions. Echocardiography 2016; 33:299-306. [DOI: 10.1111/echo.13039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Ikuo Hashimoto
- Department of Pediatrics; Toyama City Hospital; Toyama City Japan
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15
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Yao Q, Hu XH, Shen QL, Qiao ZW, Pa ME, Qian B, Yan WL, Huang GY. Differential Effect of the Ratio of Right Ventricular Volume to Left Ventricular Volume in Children with Repaired Tetralogy of Fallot. Cardiology 2015; 133:135-40. [DOI: 10.1159/000441291] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 09/23/2015] [Indexed: 11/19/2022]
Abstract
We aimed to compare the diagnostic value of indexed right ventricular end-diastolic volume (RVEDVi) and the ratio of right ventricle volume to left ventricle volume (RV/LV ratio) in prediction of the severity of pulmonary regurgitation (PR) expressed as the PR fraction (PRF) after surgery of tetralogy of Fallot (TOF). Forty-one patients with repaired TOF were included in the study. RVEDVi, LVEDVi, RV/LV ratio, PRF and ejection fraction were measured with magnetic resonance imaging. A PRF of more than 20% was considered significant. The predictive capability of two markers (RVEDVi and RV/LV ratio) for significant PR was compared using multivariate linear regression analysis and receiver operating characteristic (ROC) analysis. Both the RV/LV ratio and RVEDVi showed a correlation with PRF (r = 0.526/0.321, p = 0.001/0.041) in the correlation analysis, but in multivariate regression analysis the only independent predictor of PRF was the RV/LV ratio (F = 14.890, p = 0.001). ROC analysis revealed that a better discrimination of significant PR (>20%) from slight types (=20%) PR can be reached with the RV/LV ratio than RVEDVi (AUC = 0.805/0.709, p = 0.01). The RV/LV ratio was better than RVEDVi at differentiating mild from moderate PR (p = 0.006 vs. p = 0.153), and proved superior over RVEDVi in predicting PR based on the PRF criterion.
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Fogel MA, Pawlowski T, Keller MS, Cohen MS, Goldmuntz E, Diaz L, Li C, Whitehead KK, Harris MA. The Cardiovascular Effects of Obesity on Ventricular Function and Mass in Patients after Tetralogy of Fallot Repair. J Pediatr 2015; 167:325-30.e1. [PMID: 26033368 DOI: 10.1016/j.jpeds.2015.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 02/27/2015] [Accepted: 04/08/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVES To determine the cardiovascular effects of obesity on patients with tetralogy of Fallot (TOF) repair. STUDY DESIGN Ventricular performance measures were compared between obese (body mass index [BMI] ≥95%), overweight (85% ≤BMI <95%), and normal weight subjects (BMI <85%) in a retrospective review of patients with TOF who underwent cardiac magnetic resonance from 2005-2010. Significance was P < .05. RESULTS Of 260 consecutive patients with TOF, 32 were obese (12.3%), 48 were overweight (18.5%), and 180 were normal weight (69.2%). Biventricular mass was increased in obese compared with normal weight patients with right ventricular mass more affected than left ventricular mass. Obese patients demonstrated decreased biventricular end-diastolic volume (EDV) and stroke volume (SV) when indexed to body surface area (BSA) with an increased heart rate when compared with normal weight patients; cardiac index, ejection fraction, and pulmonary regurgitation fraction were similar. When indexed to ideal BSA, biventricular EDV and SV were similar. EDV and SV for overweight patients were nearly identical to normal weight patients with ventricular mass in between the other 2 groups. CONCLUSIONS Approximately 12% of patients after TOF repair referred for cardiac magnetic resonance in a tertiary referral center are obese with increased biventricular mass. Obese patients and normal weight patients have similar cardiac indices, however, when indexed to actual BSA, obese patients demonstrate decreased EDV and SV with increased heart rate and similar cardiac indices. When indexed to ideal BSA, no differences in biventricular volumes were noted.
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Affiliation(s)
- Mark A Fogel
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA; Department of Radiology, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA.
| | - Thomas Pawlowski
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
| | - Marc S Keller
- Department of Radiology, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
| | - Meryl S Cohen
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
| | - Elizabeth Goldmuntz
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
| | - Laura Diaz
- Division of Cardiothoracic Anesthesiology, Department of Anesthesia and Critical Care Medicine, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
| | - Christine Li
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
| | - Kevin K Whitehead
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA; Department of Radiology, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
| | - Matthew A Harris
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA; Department of Radiology, The Children's Hospital of Philadelphia, The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA
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To uncover what is unknown or forgotten - cardiac magnetic resonance in the identification of vascular pathologies in patients after tetralogy of Fallot repair. ADVANCES IN INTERVENTIONAL CARDIOLOGY 2014; 10:104-9. [PMID: 25061456 PMCID: PMC4108734 DOI: 10.5114/pwki.2014.43516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 04/02/2014] [Accepted: 04/11/2014] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION In patients with repaired tetralogy of Fallot (TOF), various pathologies of the vascular system (both arterial and venous) may be present as a result of the previous therapeutic procedures or due to the congenital disease itself. Because of the limited diagnostic capabilities in the past, lacking surgical reports of patients operated on several decades ago and/or a long time since a corrective procedure, some of these pathologies/anomalies may remain unknown. AIM To identify selected vascular pathologies with the use of cardiac magnetic resonance in patients after TOF repair. MATERIAL AND METHODS We included 208 consecutive patients (median age 24.9 years, interquartile range 20.5-36.7; 126 (60.6%) males) with repaired TOF undergoing cardiac magnetic resonance (CMR) imaging. RESULTS Significant unexpected vascular pathologies/anomalies were found in 30 patients (14.4%) and included: uni- or bilateral occlusion of the subclavian artery (n = 20), persistent left superior vena cava (n = 7, in 1 case draining into the left atrium), occluded subclavian vein (n = 1), and interruption of the inferior vena cava (n = 2). Additionally, 1 patient with the left subclavian artery occluded had an occlusion of the brachiocephalic vein. In none of the patients was the information about the uncovered pathology/anomaly present either in the referral information or in the present medical history. CONCLUSIONS The CMR in patients with repaired TOF may uncover some pathologies/anomalies which were unknown or forgotten at the time of patients' referral for the study, and which may have a significant impact on patient management.
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Ye DH, Desjardins B, Hamm J, Litt H, Pohl KM. Regional manifold learning for disease classification. IEEE TRANSACTIONS ON MEDICAL IMAGING 2014; 33:1236-1247. [PMID: 24893254 PMCID: PMC5450500 DOI: 10.1109/tmi.2014.2305751] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
While manifold learning from images itself has become widely used in medical image analysis, the accuracy of existing implementations suffers from viewing each image as a single data point. To address this issue, we parcellate images into regions and then separately learn the manifold for each region. We use the regional manifolds as low-dimensional descriptors of high-dimensional morphological image features, which are then fed into a classifier to identify regions affected by disease. We produce a single ensemble decision for each scan by the weighted combination of these regional classification results. Each weight is determined by the regional accuracy of detecting the disease. When applied to cardiac magnetic resonance imaging of 50 normal controls and 50 patients with reconstructive surgery of Tetralogy of Fallot, our method achieves significantly better classification accuracy than approaches learning a single manifold across the entire image domain.
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Affiliation(s)
| | - Benoit Desjardins
- Department of Radiology, University of Pennsylvania, Philadelphia,
PA 19104 USA
| | - Jihun Hamm
- Department of Computer Science and Engineering, Ohio State
University, Columbus, OH 43210 USA
| | - Harold Litt
- Department of Radiology, University of Pennsylvania, Philadelphia,
PA 19104 USA
| | - Kilian M. Pohl
- Center for Health Sciences, SRI International, Menlo Park, CA 94025
USA, and also with the Department of Psychiatry and Behavioral Sciences,
Stanford University, Stanford, CA 94304 USA
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Nakamura A, Horigome H, Seo Y, Ishizu T, Sumazaki R. Right Ventricular Remodeling Due to Pulmonary Regurgitation Is Associated With Reduced Left Ventricular Free Wall Strain in Surgically Repaired Tetralogy of Fallot. Circ J 2014; 78:1960-6. [DOI: 10.1253/circj.cj-13-1588] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Akihiro Nakamura
- Department of Child Health, Graduate School of Comprehensive Human Sciences, University of Tsukuba
| | - Hitoshi Horigome
- Department of Child Health, Graduate School of Comprehensive Human Sciences, University of Tsukuba
| | | | | | - Ryo Sumazaki
- Department of Child Health, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Śpiewak M, Małek Ł, Petryka J, Biernacka E, Hoffman P, Demkow M, Miśko J, Rużyłło W. Stable right ventricular size and function during short-term follow-up in patients with pulmonary regurgitation after tetralogy of Fallot repair. Clin Radiol 2013; 68:1206-11. [DOI: 10.1016/j.crad.2013.06.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/12/2013] [Accepted: 06/14/2013] [Indexed: 10/26/2022]
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