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Kim GB, Park KH, Kim SJ. Hemodynamics and Wall Shear Stress of Blood Vessels in Aortic Coarctation with Computational Fluid Dynamics Simulation. Molecules 2022; 27:molecules27041403. [PMID: 35209192 PMCID: PMC8878702 DOI: 10.3390/molecules27041403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/31/2022] [Accepted: 02/14/2022] [Indexed: 02/01/2023] Open
Abstract
The purpose of this study was to identify the characteristics of blood flow in aortic coarctation based on stenotic shape structure, stenosis rate, and the distribution of the wall load delivered into the blood vessels and to predict the impact on aneurysm formation and rupture of blood vessels by using a computational fluid dynamics modeling method. It was applied on the blood flow in abdominal aortic blood vessels in which stenosis occurred by using the commercial finite element software ADINA on fluid-solid interactions. The results of modeling, with an increasing stenosis rate and Reynolds number, showed the pressure drop was increased and the velocity was greatly changed. When the stenosis rate was the same, the pressure drop and the velocity change were larger in the stenosis with a symmetric structure than in the stenosis with an asymmetric one. Maximal changes in wall shear stress were observed in the area before stenosis and minimal changes were shown in stenosis areas. The minimal shear stress occurred at different locations depending on the stenosis shape models. With an increasing stenosis rate and Reynolds number, the maximal wall shear stress was increased and the minimal wall shear stress was decreased. Through such studies, it is thought that the characteristics of blood flow in the abdominal aorta where a stenosis is formed will be helpful in understanding the mechanism of growth of atherosclerosis and the occurrence and rupture of the abdominal aortic flow.
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Affiliation(s)
- Gi-Beum Kim
- Eouidang Agricultural Company, 4086-4 Chunhang-ro, Sanggwan-myeon, Wanju-gun 55360, Korea
- Correspondence: (G.-B.K.); (S.-J.K.); Tel.: +82-063-287-6699 (G.-B.K.); +82-063-270-4795 (S.-J.K.)
| | - Kwang-Hyun Park
- Department of Emergency Medicine and BioMedical Science Graduate Program (BMSGP), Chonnam National University, Gwangju 61469, Korea;
| | - Seong-Jong Kim
- School of Chemical Engineering, College of Engineering, Jeonbuk National University, Jeonju 54896, Korea
- Correspondence: (G.-B.K.); (S.-J.K.); Tel.: +82-063-287-6699 (G.-B.K.); +82-063-270-4795 (S.-J.K.)
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2
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Piacentini G, Mastromoro G, Bottoni A, Romano V, Riccardi R, Orfeo L. Pathophysiology of coarctation of the aorta in dichorionic twins with growth discordance. Ultrasound Obstet Gynecol 2022; 59:124-125. [PMID: 34159669 DOI: 10.1002/uog.23717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/05/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Affiliation(s)
- G Piacentini
- Fetal and Pediatric Cardiology Unit, 'San Giovanni Calibita' Fatebenefratelli Isola Tiberina Hospital, Rome, Italy
- Neonatology and Neonatal Intensive Care Unit, 'San Giovanni Calibita' Fatebenefratelli Isola Tiberina Hospital, Rome, Italy
| | - G Mastromoro
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - A Bottoni
- Division of Neonatology, Department of Woman and Child Health, Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - V Romano
- Fetal and Pediatric Cardiology Unit, 'San Giovanni Calibita' Fatebenefratelli Isola Tiberina Hospital, Rome, Italy
- Neonatology and Neonatal Intensive Care Unit, 'San Giovanni Calibita' Fatebenefratelli Isola Tiberina Hospital, Rome, Italy
| | - R Riccardi
- Fetal and Pediatric Cardiology Unit, 'San Giovanni Calibita' Fatebenefratelli Isola Tiberina Hospital, Rome, Italy
- Neonatology and Neonatal Intensive Care Unit, 'San Giovanni Calibita' Fatebenefratelli Isola Tiberina Hospital, Rome, Italy
| | - L Orfeo
- Neonatology and Neonatal Intensive Care Unit, 'San Giovanni Calibita' Fatebenefratelli Isola Tiberina Hospital, Rome, Italy
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3
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Rodriguez-Padilla J, Carrascosa T, Izquierdo L, Escobar JM. Asymptomatic thoracoabdominal aortic coarctation. J Vasc Surg 2021; 74:1375-1376. [PMID: 34598758 DOI: 10.1016/j.jvs.2020.10.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/23/2020] [Indexed: 11/19/2022]
Affiliation(s)
- Javier Rodriguez-Padilla
- Department of Vascular and Endovascular Surgery, Hospital Universitario HM Montepríncipe and HM Puerta del Sur, Madrid, Spain; Department of Vascular and Endovascular Surgery, Hospital Universitario Severo Ochoa, Madrid, Spain.
| | - Teresa Carrascosa
- Department of Surgery, Hospital Universitario de Getafe, Madrid, Spain
| | - Luis Izquierdo
- Department of Vascular and Endovascular Surgery, Hospital Universitario HM Montepríncipe and HM Puerta del Sur, Madrid, Spain
| | - Jose M Escobar
- Department of Vascular and Endovascular Surgery, Hospital Universitario HM Montepríncipe and HM Puerta del Sur, Madrid, Spain
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Egbe AC, Miranda WR, Warnes CA, Bonnichsen C, Crestanello J, Anderson JH, Connolly HM. Persistent Hypertension and Left Ventricular Hypertrophy After Repair of Native Coarctation of Aorta in Adults. Hypertension 2021; 78:672-680. [PMID: 34247510 PMCID: PMC8363521 DOI: 10.1161/hypertensionaha.121.17515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
[Figure: see text].
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Affiliation(s)
- Alexander C Egbe
- Department of Cardiovascular Medicine (A.C.E., W.R.M., C.A.W., C.B., H.M.C.), Mayo Clinic Rochester, MN
| | - William R Miranda
- Department of Cardiovascular Medicine (A.C.E., W.R.M., C.A.W., C.B., H.M.C.), Mayo Clinic Rochester, MN
| | - Carole A Warnes
- Department of Cardiovascular Medicine (A.C.E., W.R.M., C.A.W., C.B., H.M.C.), Mayo Clinic Rochester, MN
| | - Crystal Bonnichsen
- Department of Cardiovascular Medicine (A.C.E., W.R.M., C.A.W., C.B., H.M.C.), Mayo Clinic Rochester, MN
| | - Juan Crestanello
- Department of Cardiovascular Surgery (J.C.), Mayo Clinic Rochester, MN
| | - Jason H Anderson
- Division of Pediatric Cardiology (J.H.A.), Mayo Clinic Rochester, MN
| | - Heidi M Connolly
- Department of Cardiovascular Medicine (A.C.E., W.R.M., C.A.W., C.B., H.M.C.), Mayo Clinic Rochester, MN
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5
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Antonuccio MN, Mariotti A, Fanni BM, Capellini K, Capelli C, Sauvage E, Celi S. Effects of Uncertainty of Outlet Boundary Conditions in a Patient-Specific Case of Aortic Coarctation. Ann Biomed Eng 2021; 49:3494-3507. [PMID: 34431017 PMCID: PMC8671284 DOI: 10.1007/s10439-021-02841-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 07/20/2021] [Indexed: 12/22/2022]
Abstract
Computational Fluid Dynamics (CFD) simulations of blood flow are widely used to compute a variety of hemodynamic indicators such as velocity, time-varying wall shear stress, pressure drop, and energy losses. One of the major advances of this approach is that it is non-invasive. The accuracy of the cardiovascular simulations depends directly on the level of certainty on input parameters due to the modelling assumptions or computational settings. Physiologically suitable boundary conditions at the inlet and outlet of the computational domain are needed to perform a patient-specific CFD analysis. These conditions are often affected by uncertainties, whose impact can be quantified through a stochastic approach. A methodology based on a full propagation of the uncertainty from clinical data to model results is proposed here. It was possible to estimate the confidence associated with model predictions, differently than by deterministic simulations. We evaluated the effect of using three-element Windkessel models as the outflow boundary conditions of a patient-specific aortic coarctation model. A parameter was introduced to calibrate the resistances of the Windkessel model at the outlets. The generalized Polynomial Chaos method was adopted to perform the stochastic analysis, starting from a few deterministic simulations. Our results show that the uncertainty of the input parameter gave a remarkable variability on the volume flow rate waveform at the systolic peak simulating the conditions before the treatment. The same uncertain parameter had a slighter effect on other quantities of interest, such as the pressure gradient. Furthermore, the results highlight that the fine-tuning of Windkessel resistances is not necessary to simulate the post-stenting scenario.
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Affiliation(s)
- Maria Nicole Antonuccio
- BioCardioLab, Bioengineering Unit - Heart Hospital, Fondazione Toscana "G. Monasterio", Massa, Italy
| | - Alessandro Mariotti
- Civil and Industrial Engineering Department, University of Pisa, Pisa, Italy
| | - Benigno Marco Fanni
- BioCardioLab, Bioengineering Unit - Heart Hospital, Fondazione Toscana "G. Monasterio", Massa, Italy
- Information Engineering Department, University of Pisa, Pisa, Italy
| | - Katia Capellini
- BioCardioLab, Bioengineering Unit - Heart Hospital, Fondazione Toscana "G. Monasterio", Massa, Italy
- Information Engineering Department, University of Pisa, Pisa, Italy
| | - Claudio Capelli
- Institute of Cardiovascular Science, University College of London, London, UK
| | - Emilie Sauvage
- Institute of Cardiovascular Science, University College of London, London, UK
| | - Simona Celi
- BioCardioLab, Bioengineering Unit - Heart Hospital, Fondazione Toscana "G. Monasterio", Massa, Italy.
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6
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Abstract
[Figure: see text].
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Affiliation(s)
- Hirofumi Watanabe
- Department of Pediatrics, Child Health Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Brian C. Belyea
- Department of Pediatrics, Child Health Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Robert L. Paxton
- Department of Pediatrics, Child Health Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Minghong Li
- Department of Pediatrics, Child Health Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Bette J. Dzamba
- Department of Cell Biology, University of Virginia, School of Medicine, Charlottesville, Virginia
| | - Douglas W. DeSimone
- Department of Cell Biology, University of Virginia, School of Medicine, Charlottesville, Virginia
| | - R. Ariel Gomez
- Department of Pediatrics, Child Health Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Maria Luisa S. Sequeira-Lopez
- Department of Pediatrics, Child Health Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
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Lloyd DF, van Poppel MP, Pushparajah K, Vigneswaran TV, Zidere V, Steinweg J, van Amerom JF, Roberts TA, Schulz A, Charakida M, Miller O, Sharland G, Rutherford M, Hajnal JV, Simpson JM, Razavi R. Analysis of 3-Dimensional Arch Anatomy, Vascular Flow, and Postnatal Outcome in Cases of Suspected Coarctation of the Aorta Using Fetal Cardiac Magnetic Resonance Imaging. Circ Cardiovasc Imaging 2021; 14:e012411. [PMID: 34187165 PMCID: PMC8300852 DOI: 10.1161/circimaging.121.012411] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/14/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Identifying fetuses at risk of severe neonatal coarctation of the aorta (CoA) can be lifesaving but is notoriously challenging in clinical practice with a high rate of false positives. Novel fetal 3-dimensional and phase-contrast magnetic resonance imaging (MRI) offers an unprecedented means of assessing the human fetal cardiovascular system before birth. We performed detailed MRI assessment of fetal vascular morphology and flows in a cohort of fetuses with suspected CoA, correlated with the need for postnatal intervention. METHODS Women carrying a fetus with suspected CoA on echocardiography were referred for MRI assessment between 26 and 36 weeks of gestation, including high-resolution motion-corrected 3-dimensional volumes of the fetal heart and phase-contrast flow sequences gated with metric optimized gating. The relationship between aortic geometry and vascular flows was then analyzed and compared with postnatal outcome. RESULTS Seventy-two patients (51 with suspected fetal CoA and 21 healthy controls) underwent fetal MRI with motion-corrected 3-dimensional vascular reconstructions. Vascular flow measurements from phase-contrast sequences were available in 53 patients. In the CoA group, 25 of 51 (49%) required surgical repair of coarctation after birth; the remaining 26 of 51 (51%) were discharged without neonatal intervention. Reduced blood flow in the fetal ascending aorta and at the aortic isthmus was associated with increasing angulation (P=0.005) and proximal displacement (P=0.006) of the isthmus and was seen in both true positive and false positive cases. A multivariate logistic regression model including aortic flow and isthmal displacement explained 78% of the variation in outcome and correctly predicted the need for intervention in 93% of cases. CONCLUSIONS Reduced blood flow though the left heart is associated with important configurational changes at the aortic isthmus in fetal life, predisposing to CoA when the arterial duct closes after birth. Novel fetal MRI techniques may have a role in both understanding and accurately predicting severe neonatal CoA.
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Affiliation(s)
- David F.A. Lloyd
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Milou P.M. van Poppel
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
| | - Kuberan Pushparajah
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Trisha V. Vigneswaran
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Vita Zidere
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Johannes Steinweg
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
| | - Joshua F.P. van Amerom
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
| | - Thomas A. Roberts
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
| | - Alexander Schulz
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
| | - Marietta Charakida
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Owen Miller
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Gurleen Sharland
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Mary Rutherford
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
| | - Joseph V. Hajnal
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
| | - John M. Simpson
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
| | - Reza Razavi
- School of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L., M.P.M.v.P., K.P., J.S., J.F.P.v.A., T.R., A.S., M.R., J.H., R.R.)
- Department of Congenital Heart Disease, Evelina London Children’s Hospital, United Kingdom (D.F.A.L., K.P., T.V.V., V.Z., M.C., O.M., G.S., J.M.S., R.R.)
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Mandell JG, Loke YH, Mass PN, Opfermann J, Cleveland V, Aslan S, Hibino N, Krieger A, Olivieri LJ. Aorta size mismatch predicts decreased exercise capacity in patients with successfully repaired coarctation of the aorta. J Thorac Cardiovasc Surg 2021; 162:183-192.e2. [PMID: 33131888 DOI: 10.1016/j.jtcvs.2020.09.103] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 09/09/2020] [Accepted: 09/18/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Coarctation of the aorta (CoA) is associated with decreased exercise capacity despite successful repair with no residual stenosis; however, the hemodynamic mechanism remains unknown. This study aims to correlate aortic arch geometry with exercise capacity in patients with successfully repaired CoA and explain hemodynamic changes using 3-dimensional-printed aorta models in a mock circulatory flow loop. METHODS A retrospective chart review identified patients with CoA repair who had cardiac magnetic resonance imaging and an exercise stress test. Measurements included aorta diameters, arch height to diameter ratio, left ventricular function, and percent descending aorta (%DAo) flow. Each aorta was printed 3-dimensionally for the flow loop. Flow and pressure were measured at the ascending aorta (AAo) and DAo during simulated rest and exercise. Measurements were correlated with percent predicted peak oxygen consumption (VO2 max). RESULTS Fifteen patients (mean age 26.8 ± 8.6 years) had a VO2 max between 47% and 126% predicted (mean 92 ± 20%) with normal left ventricular function. DAo diameter and %DAo flow positively correlated with VO2 (P = .007 and P = .04, respectively). AAo to DAo diameter ratio (DAAo/DDAo) negatively correlated with VO2 (P < .001). From flow loop simulations, the ratio of %DAo flow in exercise to rest negatively correlated with VO2 (P = .02) and positively correlated with DAAo/DDAo (P < .01). CONCLUSIONS This study suggests aorta size mismatch (DAAo/DDAo) is a novel, clinically important measurement predicting exercise capacity in patients with successful CoA repair, likely due to increased resistance and altered flow distribution. Aorta size mismatch and %DAo flow are targets for further clinical evaluation in repaired CoA.
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Affiliation(s)
- Jason G Mandell
- Division of Cardiology, Children's National Hospital, Washington, DC.
| | - Yue-Hin Loke
- Division of Cardiology, Children's National Hospital, Washington, DC
| | - Paige N Mass
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, DC
| | - Justin Opfermann
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, DC
| | - Vincent Cleveland
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, DC
| | - Seda Aslan
- Department of Mechanical Engineering, University of Maryland, College Park, Md
| | - Narutoshi Hibino
- Section of Cardiac Surgery, Department of Surgery, University of Chicago/Advocate Children's Hospital Chicago, Ill
| | - Axel Krieger
- Department of Mechanical Engineering, University of Maryland, College Park, Md
| | - Laura J Olivieri
- Division of Cardiology, Children's National Hospital, Washington, DC; Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, DC
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9
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Abstract
Coarctation of the aorta (CoA) is a congenital tightening of the proximal descending aorta. Flow quantification can be immensely valuable for an early and accurate diagnosis. However, there is a lack of appropriate diagnostic approaches for a variety of cardiovascular diseases, such as CoA. An accurate understanding of the disease depends on measurements of the global haemodynamics (criteria for heart function) and also the local haemodynamics (detailed data on the dynamics of blood flow). Playing a significant role in clinical processes, wall shear stress (WSS) cannot be measured clinically; thus, computation tools are needed to give an insight into this crucial haemodynamic parameter. In the present study, in order to enable the progress of non-invasive approaches that quantify global and local haemodynamics for different CoA severities, innovative computational blueprint simulations that include fluid-solid interaction models are developed. Since there is no clear approach for managing the CoA regarding its severity, this study proposes the use of WSS indices and pressure gradient to better establish a framework for treatment procedures in CoA patients with different severities. This provides a platform for improving CoA therapy on a patient-specific level, in which physicians can perform treatment methods based on WSS indices on top of using a mere experience. Results show how severe CoA affects the aorta in comparison to the milder cases, which can give the medical community valuable information before and after any intervention.
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Affiliation(s)
- Deniz Rafiei
- Department of Mechanical Engineering, K. N. Toosi Univeristy of Technology, Tehran, Iran
| | - Mohammad Amin Abazari
- Department of Mechanical Engineering, K. N. Toosi Univeristy of Technology, Tehran, Iran
| | - M Soltani
- Department of Mechanical Engineering, K. N. Toosi Univeristy of Technology, Tehran, Iran
- Department of Electrical and Computer Engineering, Faculty of Engineering, School of Optometry and Vision Science, Faculty of Science, University of Waterloo, Waterloo, Canada
- Advanced Bioengineering Initiative Center, Multidisciplinary International Complex, K. N. Toosi University of Technology, Tehran, Iran
- Centre for Biotechnology and Bioengineering (CBB), University of Waterloo, Waterloo, ON, Canada
- Cancer Biology Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Alimohammadi
- Department of Mechanical Engineering, K. N. Toosi Univeristy of Technology, Tehran, Iran.
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10
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van Ooij P, Farag ES, Blanken CPS, Nederveen AJ, Groenink M, Planken RN, Boekholdt SM. Fully quantitative mapping of abnormal aortic velocity and wall shear stress direction in patients with bicuspid aortic valves and repaired coarctation using 4D flow cardiovascular magnetic resonance. J Cardiovasc Magn Reson 2021; 23:9. [PMID: 33588887 PMCID: PMC7885343 DOI: 10.1186/s12968-020-00703-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 12/20/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Helices and vortices in thoracic aortic blood flow measured with 4D flow cardiovascular magnetic resonance (CMR) have been associated with aortic dilation and aneurysms. Current approaches are semi-quantitative or when fully quantitative based on 2D plane placement. In this study, we present a fully quantitative and three-dimensional approach to map and quantify abnormal velocity and wall shear stress (WSS) at peak systole in patients with a bicuspid aortic valve (BAV) of which 52% had a repaired coarctation. METHODS 4D flow CMR was performed in 48 patients with BAV and in 25 healthy subjects at a spatiotemporal resolution of 2.5 × 2.5 × 2.5mm3/ ~ 42 ms and TE/TR/FA of 2.1 ms/3.4 ms/8° with k-t Principal Component Analysis factor R = 8. A 3D average of velocity and WSS direction was created for the normal subjects. Comparing BAV patient data with the 3D average map and selecting voxels deviating between 60° and 120° and > 120° yielded 3D maps and volume (in cm3) and surface (in cm2) quantification of abnormally directed velocity and WSS, respectively. Linear regression with Bonferroni corrected significance of P < 0.0125 was used to compare abnormally directed velocity volume and WSS surface in the ascending aorta with qualitative helicity and vorticity scores, with local normalized helicity (LNH) and quantitative vorticity and with patient characteristics. RESULTS The velocity volumes > 120° correlated moderately with the vorticity scores (R ~ 0.50, P < 0.001 for both observers). For WSS surface these results were similar. The velocity volumes between 60° and 120° correlated moderately with LNH (R = 0.66) but the velocity volumes > 120° did not correlate with quantitative vorticity. For abnormal velocity and WSS deviating between 60° and 120°, moderate correlations were found with aortic diameters (R = 0.50-0.70). For abnormal velocity and WSS deviating > 120°, additional moderate correlations were found with age and with peak velocity (stenosis severity) and a weak correlation with gender. Ensemble maps showed that more than 60% of the patients had abnormally directed velocity and WSS. Additionally, abnormally directed velocity and WSS was higher in the proximal descending aorta in the patients with repaired coarctation than in the patients where coarctation was never present. CONCLUSION The possibility to reveal directional abnormalities of velocity and WSS in 3D provides a new tool for hemodynamic characterization in BAV disease.
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Affiliation(s)
- Pim van Ooij
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Emile S. Farag
- Department of Cardiothoracic Surgery, Amsterdam University Medical Center, location AMC, Amsterdam, The Netherlands
| | - Carmen P. S. Blanken
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Aart J. Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Maarten Groenink
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
- Department of Cardiology, Amsterdam University Medical Center, location AMC, Amsterdam, The Netherlands
| | - R. Nils Planken
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - S. Matthijs Boekholdt
- Department of Cardiology, Amsterdam University Medical Center, location AMC, Amsterdam, The Netherlands
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11
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McFarland CA, Truong DT, Pinto NM, Minich LL, Burch PT, Eckhauser AW, Lal AK, Molina KM, Ou Z, Presson AP, May LJ. Implications of Left Ventricular Dysfunction at Presentation for Infants with Coarctation of the Aorta. Pediatr Cardiol 2021; 42:72-77. [PMID: 33005984 PMCID: PMC7529086 DOI: 10.1007/s00246-020-02455-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 09/16/2020] [Indexed: 11/26/2022]
Abstract
Infants with aortic coarctation may present with left ventricular (LV) dysfunction which may complicate the postoperative course and lead to increased healthcare costs. We aimed to define the prevalence of moderate to severe left ventricular (LV) systolic dysfunction, evaluate time to recovery, and compare health care costs. Single-center retrospective cohort study at a tertiary care hospital was conducted. Infants < 6 months old at diagnosis with aortic coarctation were identified using surgical codes for coarctation repair between January 2010 and May 2018. Moderate to severe dysfunction was defined as ejection fraction (EF) < 40%. Of 160 infants studied, 18 (11%) had moderate to severe LV dysfunction at presentation. Compared to those with better LV function, infants with moderate to severe LV dysfunction were older at presentation (12 vs. 6 days, p = 0.004), had more postoperative cardiac intensive care unit (ICU) days (5 vs. 3, p < 0.001), and more ventilator days (3.5 vs. 1, p < 0.001). The median time to normal LV EF (≥ 55%) was 6 days postoperatively (range 1-230 days). Infants presenting with moderate to severe LV dysfunction had higher index hospitalization costs ($90,560 vs. $59,968, p = 0.02), but no difference in cost of medical follow-up for the first year following discharge ($3,078 vs. $2,568, p = 0.46). In the current era, > 10% of infants with coarctation present with moderate to severe LV dysfunction that typically recovers. Those with moderate to severe dysfunction had longer duration of mechanical ventilation and postoperative cardiac ICU stays, likely driving higher costs of index hospitalization.
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Affiliation(s)
- Carol A McFarland
- Department of Pediatrics, Division of Pediatric Cardiology, University of Utah, Salt Lake City, UT, 84113, USA.
| | - Dongngan T Truong
- Department of Pediatrics, Division of Pediatric Cardiology, University of Utah, Salt Lake City, UT, 84113, USA
| | - Nelangi M Pinto
- Department of Pediatrics, Division of Pediatric Cardiology, University of Utah, Salt Lake City, UT, 84113, USA
| | - L LuAnn Minich
- Department of Pediatrics, Division of Pediatric Cardiology, University of Utah, Salt Lake City, UT, 84113, USA
| | - Phillip T Burch
- Department of Surgery, Pediatric Cardiothoracic Surgery, Cook Children's Hospital, Fort Worth, USA
| | - Aaron W Eckhauser
- Department of Surgery, Division of Pediatric Cardiothoracic Surgery, University of Utah, Salt Lake City, UT, USA
| | - Ashwin K Lal
- Department of Pediatrics, Division of Pediatric Cardiology, University of Utah, Salt Lake City, UT, 84113, USA
| | - Kimberly M Molina
- Department of Pediatrics, Division of Pediatric Cardiology, University of Utah, Salt Lake City, UT, 84113, USA
| | - Zhining Ou
- Division of Epidemiology, Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Angela P Presson
- Division of Epidemiology, Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Lindsay J May
- Department of Pediatrics, Division of Pediatric Cardiology, University of Utah, Salt Lake City, UT, 84113, USA
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12
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Soveral I, Crispi F, Walter C, Guirado L, García-Cañadilla P, Cook A, Bonnin A, Dejea H, Rovira-Zurriaga C, Sánchez de Toledo J, Gratacós E, Martínez JM, Bijnens B, Gómez O. Early cardiac remodeling in aortic coarctation: insights from fetal and neonatal functional and structural assessment. Ultrasound Obstet Gynecol 2020; 56:837-849. [PMID: 31909552 DOI: 10.1002/uog.21970] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 12/12/2019] [Accepted: 12/23/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Coarctation of the aorta (CoA) is associated with left ventricular (LV) dysfunction in neonates and adults. Cardiac structure and function in fetal CoA and cardiac adaptation to early neonatal life have not been described. We aimed to investigate the presence of cardiovascular structural remodeling and dysfunction in fetuses with CoA and their early postnatal cardiac adaptation. METHODS This was a prospective observational case-control study, conducted between 2011 and 2018 in a single tertiary referral center, of fetuses with CoA and gestational age-matched normal controls. All fetuses/neonates underwent comprehensive echocardiographic evaluation in the third trimester of pregnancy and after birth. Additionally, myocardial microstructure was assessed in one fetal and one neonatal CoA-affected heart specimen, using synchrotron radiation-based X-ray phase-contrast microcomputed tomography and histology, respectively. RESULTS We included 30 fetuses with CoA and 60 gestational age-matched controls. Of these, 20 CoA neonates and 44 controls were also evaluated postnatally. Fetuses with CoA showed significant left-to-right volume redistribution, with right ventricular (RV) size and output dominance and significant geometry alterations with an abnormally elongated LV, compared with controls (LV midventricular sphericity index (median (interquartile range; IQR), 2.4 (2.0-2.7) vs 1.8 (1.7-2.0); P < 0.001). Biventricular function was preserved and no ventricular hypertrophy was observed. Synchrotron tomography and histological assessment revealed normal myocyte organization in the fetal and neonatal specimens, respectively. Postnatally, the LV in CoA cases showed prompt remodeling, becoming more globular (LV midventricular sphericity index (mean ± SD), 1.5 ± 0.3 in CoA vs 1.8 ± 0.2 in controls; P < 0.001) with preserved systolic and normalized output, but altered diastolic, parameters compared with controls (LV inflow peak velocity in early diastole (mean ± SD), 97.8 ± 14.5 vs 56.5 ± 12.9 cm/s; LV inflow peak velocity in atrial contraction (median (IQR), 70.5 (60.1-84.9) vs 47.0 (43.0-55.0) cm/s; LV peak myocardial velocity in atrial contraction (mean ± SD), 5.1 ± 2.6 vs 6.3 ± 2.2 cm/s; P < 0.05). The neonatal RV showed increased longitudinal function in the presence of a patent arterial duct. CONCLUSIONS Our results suggest unique fetal cardiac remodeling in CoA, in which the LV stays smaller from the decreased growth stimulus of reduced volume load. Postnatally, the LV is acutely volume-loaded, resulting in an overall geometry change with higher filling velocities and preserved systolic function. These findings improve our understanding of the evolution of CoA from fetal to neonatal life. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- I Soveral
- BCNatal-Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), Barcelona, Spain
| | - F Crispi
- BCNatal-Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
- Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - C Walter
- Pediatric Cardiology, Hospital Sant Joan de Déu, Barcelona, Spain
| | - L Guirado
- BCNatal-Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), Barcelona, Spain
| | - P García-Cañadilla
- PhySense, DTIC, Universitat Pompeu Fabra, Barcelona, Spain
- Institute of Cardiovascular Science, University College London, London, UK
| | - A Cook
- Institute of Cardiovascular Science, University College London, London, UK
| | - A Bonnin
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
| | - H Dejea
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
- Institute for Biomedical Engineering, ETH Zürich, Zürich, Switzerland
| | - C Rovira-Zurriaga
- Department of Pathology, Hospital Sant Joan de Déu, Barcelona, Spain
| | | | - E Gratacós
- BCNatal-Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
- Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - J M Martínez
- BCNatal-Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
- Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - B Bijnens
- PhySense, DTIC, Universitat Pompeu Fabra, Barcelona, Spain
- ICREA, Barcelona, Spain
| | - O Gómez
- BCNatal-Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Déu), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
- Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
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13
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Jain CC, Warnes CA, Egbe AC, Cetta F, DuBrock HM, Connolly HM, Miranda WR. Hemodynamics in Adults With the Shone Complex. Am J Cardiol 2020; 130:137-142. [PMID: 32703525 DOI: 10.1016/j.amjcard.2020.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/31/2020] [Accepted: 06/05/2020] [Indexed: 12/11/2022]
Abstract
Patients with Shone complex (SC) have multiple left-sided obstructive lesions and thus are at risk for left ventricular (LV) remodeling, LV diastolic dysfunction and pulmonary hypertension. Yet, to date, there has been no description of hemodynamics in adults with SC. Retrospective chart review of 25 patients with SC who underwent cardiac catheterization at Mayo Clinic, MN between 2002 and 2019 was performed. SC was defined as multiple left-sided obstructive lesions in the presence of an anatomically abnormal mitral valve. Median age was 32 years (22.5, 42) and 15 patients (60%) were female. The majority of patients (84%) had history of coarctation of the aorta, 10 (40%) had subaortic stenosis, 11 (44%) had prior aortic valve replacement, and 10 (40%) had prior mitral valve replacement. Structural disease at the time of catheterization which warranted intervention within the next year was present in 13 patients (52%). The mean LV end-diastolic pressure was 21.3 ± 9.0 mm Hg (>15 mm Hg in 71%), pulmonary artery peak systolic pressure was 55.4 ± 13.4 mm Hg, and the pulmonary artery mean pressure was 37.0 ± 9.4 mm Hg (>20 mm Hg in 96%). During a mean follow-up of 8.3 ± 4.4 years, there were 7 deaths (28%) and 3 additional patients (12%) underwent cardiac transplantation. In conclusion, adults with SC who underwent catheterization showed significant left-sided heart and pulmonary vascular remodeling. Elevated LV end-diastolic pressure and pulmonary artery pressures were highly prevalent. There were high mortality and cardiac transplant rates in our cohort.
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Affiliation(s)
- C Charles Jain
- Department of Cardiovascular Medicine, Mayo Clinic, Minnesota
| | - Carole A Warnes
- Department of Cardiovascular Medicine, Mayo Clinic, Minnesota
| | | | - Frank Cetta
- Department of Cardiovascular Medicine, Mayo Clinic, Minnesota; Department of Pediatric and Adolescent Medicine/Division of Pediatric Cardiology, Mayo Clinic, Minnesota
| | - Hilary M DuBrock
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota
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14
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Cluver CA, Herbst P, Griffith-Richards S, Hassan M, Allwood B. Coarctation of the aorta: a rare cause of severe hypertension in pregnancy. Lancet 2020; 396:62. [PMID: 32622398 DOI: 10.1016/s0140-6736(20)31312-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 05/21/2020] [Indexed: 11/17/2022]
Affiliation(s)
- Catherine Anne Cluver
- Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, Western Cape, South Africa; Translational Obstetrics Group, Department of Obstetrics and Gynaecology, University of Melbourne, VIC, Australia; Mercy Perinatal, Mercy Hospital for Women, Heidelberg, VIC, Australia.
| | - Philip Herbst
- Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, Western Cape, South Africa
| | | | - Muhammed Hassan
- Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, Western Cape, South Africa
| | - Brian Allwood
- Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, Western Cape, South Africa
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15
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Farjat Pasos JI, Ontiveros Mercado H, Marroquín Donday LA, Jiménez Rodríguez GM, Jiménez Santos M, Arias Sánchez EA, Damas de Los Santos F. Electro-Cut Assisted Crossing Technique for Noncrossable Extreme Aortic Coarctation: First-in-Man. JACC Cardiovasc Interv 2020; 13:e111-e115. [PMID: 32305396 DOI: 10.1016/j.jcin.2020.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 11/19/2022]
Affiliation(s)
- Julio I Farjat Pasos
- Department of Interventional Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico. https://twitter.com/Julio_Farjat
| | - Heriberto Ontiveros Mercado
- Department of Interventional Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Luis A Marroquín Donday
- Department of Interventional Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Gian M Jiménez Rodríguez
- Department of Interventional Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Moises Jiménez Santos
- Tomography Department, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Eduardo A Arias Sánchez
- Department of Interventional Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Felix Damas de Los Santos
- Department of Interventional Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.
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16
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Abstract
Aortic coarctation is a discrete narrowing of the thoracic aorta. In addition to anatomic obstruction, it can be considered an aortopathy with abnormal vascular properties characterized by stiffness and impaired relaxation. There are surgical and transcatheter techniques to address the obstruction but, despite relief, patients with aortic coarctation are at risk for hypertension, aortic complications, and abnormalities with left ventricular performance. This review covers the etiology, pathophysiology, diagnosis, and management of adults with aortic coarctation, with emphasis on multimodality imaging characteristics and lifelong surveillance to identify long-term complications.
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Affiliation(s)
- Yuli Y Kim
- Philadelphia Adult Congenital Heart Center, Perelman School of Medicine at the University of Pennsylvania, Penn Medicine and Children's Hospital of Philadelphia, Perelman Center for Advanced Medicine, 3400 Civic Center Boulevard, Philadelphia, PA 19104, USA.
| | - Lauren Andrade
- Philadelphia Adult Congenital Heart Center, Perelman School of Medicine at the University of Pennsylvania, Penn Medicine and Children's Hospital of Philadelphia, Perelman Center for Advanced Medicine, 3400 Civic Center Boulevard, Philadelphia, PA 19104, USA
| | - Stephen C Cook
- Adult Congenital Heart Disease Program, Congenital Heart Center, Helen DeVos Children's Hospital, Frederik Meijer Heart & Vascular Institute, Pediatrics and Human Development, Michigan State University, 25 Michigan Street NE Suite 4200, Grand Rapids, MI 49503, USA
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17
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Abstract
BACKGROUND Coarctation of aorta (COA) results in chronic left ventricular (LV) pressure overload and subsequently leads to LV diastolic dysfunction and heart failure over time. The goal of COA intervention is to prevent these complications. The timing of COA interventions is based on the presence of these COA severity indices: doppler mean COA gradient, systolic blood pressure, upper-to-lower-extremity SBP gradient, aortic isthmus ratio, presence of collaterals, and exercise-induced hypertension. Although these indices are physiologically intuitive, the relationship between these indices and LV diastolic dysfunction and exertional symptoms has not been studied. The purpose of this study was to evaluate the association between the indices of COA severity and LV diastolic function and symptoms. METHODS In this cross-sectional study, multivariate linear and logistic regression analyses were used to assess the correlation between indices of COA severity, LV diastolic function (average e' and E/e'), and exertional symptoms (NYHA II-IV and peak oxygen consumption). RESULTS Of all the COA indices analyzed in 546 adult COA patients, aortic isthmus ratio had the strongest correlation with e' (β [95% CI]: 3.11 [2.02-4.31]; P=0.014) per 1 cm/second; E/e' (-13.4 [-22.3 to -4.81]; P=0.009) per 1 unit; peak oxygen consumption (4.05 [1.97-6.59] per 1% change, P=0.019), and NYHA II to IV symptoms (odds ratio, 2.16 [1.65-3.18]; P=0.006). CONCLUSIONS Of all the COA severity indices stipulated in the guidelines, aortic isthmus ratio had the strongest correlation with LV diastolic function and exertional symptoms. As LV diastolic dysfunction typically precede heart failure symptoms, we anticipate that the results of this study will improve and simplify patient selection for COA intervention and potentially improve long-term outcomes.
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Affiliation(s)
- Alexander C Egbe
- Department of Cardiovascular Medicine (A.C.E., H.M.C.), Mayo Clinic, Rochester, MN
| | | | - Heidi M Connolly
- Department of Cardiovascular Medicine (A.C.E., H.M.C.), Mayo Clinic, Rochester, MN
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18
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Egbe AC, Reddy YNV, Obokata M, Borlaug BA. Doppler-Derived Arterial Load Indices Better Reflect Left Ventricular Afterload Than Systolic Blood Pressure in Coarctation of Aorta. Circ Cardiovasc Imaging 2020; 13:e009672. [PMID: 32069118 PMCID: PMC7034620 DOI: 10.1161/circimaging.119.009672] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Patients with vascular stiffening may display increased arterial afterload that is out of proportion to systolic blood pressure (SBP). Since vascular and endothelial dysfunction develop in patients with coarctation of aorta (COA), we hypothesized that for any SBP, patients with mild COA (COA peak velocity <2 m/s) will have a higher arterial afterload and increased left ventricular mass index (LVMI) compared with controls, and that Doppler-derived arterial load indices would be a better predictor of LVMI compared with SBP alone. METHODS We studied 204 COA patients (age 35±12 y) and 204 matched controls. Doppler-derived arterial afterload was assessed using effective arterial elastance index and total arterial compliance index. RESULTS Despite similar SBP, the mild COA group displayed higher arterial afterload as evidenced by a higher elastance index (3.3±0.9 versus 2.9±0.7 mm Hg/mL·m2; P<0.001) and lower total arterial compliance index (0.8±0.3 versus 1.2±0.5 mL/mm Hg·m2; P<0.001). This was associated with higher LVMI in COA (109±35 versus 93±32, g/m2; P<0.001). Compared with SBP (β=0.24 [95% CI, 0.02-0.45]), elastance index (β=20.2 [95% CI, 15.8-44.1]) and total arterial compliance index (β=-32.5 [95% CI, -43.8 to -123.6]) were better predictors of LVMI. Elastance index (but not SBP) was predictive of longitudinal increases in LVMI (r=0.43, P<0.001). CONCLUSIONS COA patients had higher arterial afterload compared with controls with similar SBP. In comparison to SBP, Doppler-derived arterial load indices correlate more strongly with LV hypertrophy. These data suggest that SBP may underestimate LV afterload in this population. This has important clinical implications since titration of antihypertensive therapy is currently based on SBP.
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Affiliation(s)
- Alexander C Egbe
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, MN
| | - Yogesh N V Reddy
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, MN
| | - Masaru Obokata
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, MN
| | - Barry A Borlaug
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, MN
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19
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Tossas-Betancourt C, van Bakel TMJ, Arthurs CJ, Coleman DM, Eliason JL, Figueroa CA, Stanley JC. Computational analysis of renal artery flow characteristics by modeling aortoplasty and aortic bypass interventions for abdominal aortic coarctation. J Vasc Surg 2020; 71:505-516.e4. [PMID: 31153701 PMCID: PMC8409007 DOI: 10.1016/j.jvs.2019.02.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/20/2019] [Indexed: 01/23/2023]
Abstract
OBJECTIVE Suprarenal abdominal aortic coarctation (SAAC) alters flow and pressure patterns to the kidneys and is often associated with severe angiotensin-mediated hypertension refractory to drug therapy. SAAC is most often treated by a thoracoabdominal bypass (TAB) or patch aortoplasty (PA). It is currently unclear what effect these interventions have on renal flow and pressure waveforms. This study, using retrospective data from a patient with SAAC subjected to a TAB, undertook computational modeling to analyze aortorenal blood flow preoperatively as well as postoperatively after a variety of TAB and PA interventions. METHODS Patient-specific anatomic models were constructed from preoperative computed tomography angiograms of a 9-year-old child with an isolated SAAC. Fluid-structure interaction (FSI) simulations of hemodynamics were performed to analyze preoperative renal flow and pressure waveforms. A parametric study was then performed to examine the hemodynamic impact of different bypass diameters and patch oversizing. RESULTS Preoperative FSI results documented diastole-dominated renal perfusion with considerable high-frequency disturbances in blood flow and pressure. The postoperative TAB right and left kidney volumes increased by 58% and 79%, respectively, reflecting the increased renal artery blood flows calculated by the FSI analysis. Postoperative increases in systolic flow accompanied decreases in high-frequency disturbances, aortic pressure, and collateral flow after all surgical interventions. In general, lesser degrees of high-frequency disturbances followed PA interventions. High-frequency disturbances were eliminated with the 0% PA in contrast to the 30% and 50% PA oversizing and TAB interventions, in which these flow disturbances remained. CONCLUSIONS Both TAB and PA dramatically improved renal artery flow and pressure waveforms, although disturbed renal waveforms remained in many of the surgical scenarios. Importantly, only the 0% PA oversizing scenario eliminated all high-frequency disturbances, resulting in nearly normal aortorenal blood flow. The study also establishes the relevance of patient-specific computational modeling in planning interventions for the midaortic syndrome.
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Affiliation(s)
| | | | - Christopher J Arthurs
- Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom
| | - Dawn M Coleman
- Department of Surgery, University of Michigan, Ann Arbor, Mich
| | | | - C Alberto Figueroa
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Mich; Department of Surgery, University of Michigan, Ann Arbor, Mich.
| | - James C Stanley
- Department of Surgery, University of Michigan, Ann Arbor, Mich
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20
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Abstract
To evaluate the utility of echocardiography (echo) in the diagnosis of persistent fifth aortic arch (PFAA), a very rare congenital aortic arch anomaly, and to compare echo and computed tomography angiography (CTA) imaging findings to improve our understanding of this anomaly.Data on the clinical diagnosis, imaging findings, and clinical management of PFAA were retrospectively analyzed in 10 suspected cases of PFAA admitted to our hospital between January 2012 and February 2017. We compared echo as a first line examination modality, and CTA and surgery results as the gold standard. Weinberg's classification was used to classify the type of PFAA.All patients (100%) received echo examination, eight patients (80%) received CTA examination, and four patients (40%) received sternotomy surgery; all recovered well after surgery. According to Weinberg's classification, 2, 6, and 2 cases (20%, 60%, and 20%) were classified as Type A, B, and C, respectively. Echo was able to diagnose 5 cases of PFAA (1 Type A case and 4 Type B cases) in the first instance. The diagnostic conformance rate of echo was 62.5% after comparisons with CTA and surgery results.The clinical manifestation of PFAA was atypical, and its diagnosis depended primarily on medical imaging. Echo has a relatively high diagnostic accuracy for PFAA, which is very valuable for its early detection.
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Affiliation(s)
- Haiyan Yang
- Department of Ultrasound, Children's Hospital of Chongqing
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Key Laboratory of Biomedical Engineering, Chongqing
- Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders; Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, P.R China
| | - Xu Zhu
- Department of Ultrasound, Children's Hospital of Chongqing
- Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders; Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, P.R China
| | - Chun Wu
- Department of Cardiothoracic Surgery
- Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders; Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, P.R China
| | - Xiaodong Zhao
- Department of Pediatric Research Institute
- Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders; Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, P.R China
| | - Xiaojuan Ji
- Department of Ultrasound, Children's Hospital of Chongqing
- Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders; Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, P.R China
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21
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Mercuri M, Wustmann K, von Tengg-Kobligk H, Göksu C, Hose DR, Narracott A. Subject-specific simulation for non-invasive assessment of aortic coarctation: Towards a translational approach. Med Eng Phys 2020; 77:69-79. [PMID: 31926831 DOI: 10.1016/j.medengphy.2019.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 11/27/2019] [Accepted: 12/13/2019] [Indexed: 12/19/2022]
Abstract
We present a multi-scale CFD-based study conducted in a cohort of 11 patients with coarctation of the aorta (CoA). The study explores the potential for implementation of a workflow using non-invasive routinely collected medical imaging data and clinical measurements to provide a more detailed insight into local aortic haemodynamics in order to support clinical decision making. Our approach is multi-scale, using a reduced-order model (1D/0D) and an optimization process for the personalization of patient-specific boundary conditions and aortic vessel wall parameters from non-invasive measurements, to inform a more complex model (3D/0D) representing 3D aortic patient-specific anatomy. The reliability of the modelling approach is investigated by comparing 3D/0D model pressure drop estimation with measured peak gradients recorded during diagnostic cardiac catheterization and 2D PC-MRI flow rate measurements in the descending aorta. The current study demonstrated that the proposed approach requires low levels of user interaction, making it suitable for the clinical setting. The agreement between computed blood pressure drop and catheter measurements is 10 ± 8 mmHg at the coarctation site. The comparison between CFD derived and catheter measured pressure gradients indicated that the model has to be improved, suggesting the use of time varying pressure waveforms to further optimize the tuning process and modelling assumptions.
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Affiliation(s)
- Massimiliano Mercuri
- Mathematical Modelling in Medicine Group, Department of Infection, Immunity and Cardiovascular Science, University of Sheffield, Sheffield, United Kingdom; Therenva, Rennes, France; INSIGNEO Institute for in Silico Medicine, The University of Sheffield, Sheffield, U.K..
| | - Kerstin Wustmann
- Center for Congenital Heart Disease, Cardiac Magnetic Resonance Imaging, Department of Cardiology, University Hospital Bern, Bern, Switzerland
| | - Hendrik von Tengg-Kobligk
- Department of Diagnostic, Interventional and Pediatric Radiology, University of Bern, Bern University Hospital, Bern, Switzerland
| | | | - D Rodney Hose
- Mathematical Modelling in Medicine Group, Department of Infection, Immunity and Cardiovascular Science, University of Sheffield, Sheffield, United Kingdom; Department of Diagnostic, Interventional and Pediatric Radiology, University of Bern, Bern University Hospital, Bern, Switzerland; Department of Circulation and Medical Imaging, NTNU, Trondheim, Norway
| | - Andrew Narracott
- Mathematical Modelling in Medicine Group, Department of Infection, Immunity and Cardiovascular Science, University of Sheffield, Sheffield, United Kingdom; INSIGNEO Institute for in Silico Medicine, The University of Sheffield, Sheffield, U.K
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22
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Rodrigues JCL, Jaring MFR, Werndle MC, Mitrousi K, Lyen SM, Nightingale AK, Hamilton MCK, Curtis SL, Manghat NE, Paton JFR, Hart EC. Repaired coarctation of the aorta, persistent arterial hypertension and the selfish brain. J Cardiovasc Magn Reson 2019; 21:68. [PMID: 31703697 PMCID: PMC6839237 DOI: 10.1186/s12968-019-0578-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/21/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND It has been estimated that 20-30% of repaired aortic coarctation (CoA) patients develop hypertension, with significant cardiovascular morbidity and mortality. Vertebral artery hypoplasia (VAH) with an incomplete posterior circle of Willis (ipCoW; VAH + ipCoW) is associated with increased cerebrovascular resistance before the onset of increased sympathetic nerve activity in borderline hypertensive humans, suggesting brainstem hypoperfusion may evoke hypertension to maintain cerebral blood flow: the "selfish brain" hypothesis. We now assess the "selfish brain" in hypertension post-CoA repair. METHODS Time-of-flight cardiovascular magnetic resonance angiography from 127 repaired CoA patients (34 ± 14 years, 61% male, systolic blood pressure (SBP) 138 ± 19 mmHg, diastolic blood pressure (DBP) 76 ± 11 mmHg) was compared with 33 normotensive controls (42 ± 14 years, 48% male, SBP 124 ± 10 mmHg, DBP 76 ± 8 mmHg). VAH was defined as < 2 mm and ipCoW as hypoplasia of one or both posterior communicating arteries. RESULTS VAH + ipCoW was more prevalent in repaired CoA than controls (odds ratio: 5.8 [1.6-20.8], p = 0.007), after controlling for age, sex and body mass index (BMI). VAH + ipCoW was an independent predictor of hypertension (odds ratio: 2.5 [1.2-5.2], p = 0.017), after controlling for age, gender and BMI. Repaired CoA subjects with VAH + ipCoW were more likely to have difficult to treat hypertension (odds ratio: 3.3 [1.01-10.7], p = 0.049). Neither age at time of CoA repair nor any specific repair type were significant predictors of VAH + ipCoW in univariate regression analysis. CONCLUSIONS VAH + ipCoW predicts arterial hypertension and difficult to treat hypertension in repaired CoA. It is unrelated to age at time of repair or repair type. CoA appears to be a marker of wider congenital cerebrovascular problems. Understanding the "selfish brain" in post-CoA repair may help guide management. JOURNAL SUBJECT CODES High Blood Pressure; Hypertension; Magnetic Resonance Imaging (MRI); Cardiovascular Surgery; Cerebrovascular Malformations.
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Affiliation(s)
- Jonathan C. L. Rodrigues
- Department of Cardiovascular Magnetic Resonance, Bristol Cardiovascular Biomedical Research Unit, Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
- School of Physiology, Pharmacology & Neuroscience, Faculty of Biomedical Science, University of Bristol, Bristol, UK
- Department of Radiology, Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - Matthew F. R. Jaring
- Department of Radiology, Bristol Royal Infirmary, University Bristol NHS Foundation Trust, Bristol, UK
| | - Melissa C. Werndle
- Department of Radiology, Bristol Royal Infirmary, University Bristol NHS Foundation Trust, Bristol, UK
| | - Konstantina Mitrousi
- School of Physiology, Pharmacology & Neuroscience, Faculty of Biomedical Science, University of Bristol, Bristol, UK
| | - Stephen M. Lyen
- Department of Radiology, Bristol Royal Infirmary, University Bristol NHS Foundation Trust, Bristol, UK
| | - Angus K. Nightingale
- BHI CardioNomics Research Group, Clinical Research and Imaging Centre-Bristol, University of Bristol, Bristol, UK
| | - Mark C. K. Hamilton
- Department of Radiology, Bristol Royal Infirmary, University Bristol NHS Foundation Trust, Bristol, UK
| | - Stephanie L. Curtis
- Adult Congenital Heart Disease Unit, Bristol Heart Institute, Bristol Royal Infirmary, University Hospitals Bristol NHS Foundation Trust, Upper Maudlin Street, Bristol, UK
| | - Nathan E. Manghat
- Department of Radiology, Bristol Royal Infirmary, University Bristol NHS Foundation Trust, Bristol, UK
| | - Julian F. R. Paton
- School of Physiology, Pharmacology & Neuroscience, Faculty of Biomedical Science, University of Bristol, Bristol, UK
- BHI CardioNomics Research Group, Clinical Research and Imaging Centre-Bristol, University of Bristol, Bristol, UK
- Department of Physiology, Faculty of Medical and Health Sciences, University of Auckland, Park Road, Grafton, Auckland, New Zealand
| | - Emma C. Hart
- School of Physiology, Pharmacology & Neuroscience, Faculty of Biomedical Science, University of Bristol, Bristol, UK
- BHI CardioNomics Research Group, Clinical Research and Imaging Centre-Bristol, University of Bristol, Bristol, UK
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23
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Quail MA, Segers P, Steeden JA, Muthurangu V. The aorta after coarctation repair - effects of calibre and curvature on arterial haemodynamics. J Cardiovasc Magn Reson 2019; 21:22. [PMID: 30975162 PMCID: PMC6458643 DOI: 10.1186/s12968-019-0534-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 03/19/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Aortic shape has been proposed as an important determinant of adverse haemodynamics following coarctation repair. However, previous studies have not demonstrated a consistent relationship between shape and vascular load. In this study, 3D aortic shape was evaluated using principal component analysis (PCA), allowing investigation of the relationship between 3D shape and haemodynamics. METHODS Sixty subjects (38 male, 25.0 ± 7.8 years) with repaired coarctation were recruited. Central aortic haemodynamics including wave intensity analysis were measured noninvasively using a combination of blood pressure and phase contrast cardiovascular magnetic resonance (CMR). 3D curvature and radius data were derived from CMR angiograms. PCA was separately performed on 3D radius and curvature data to assess the role of arch geometry on haemodynamics. Clinical findings were corroborated using 1D vascular models. RESULTS There were no independent associations between 3D curvature and any hemodynamic parameters. However, the magnitude of the backwards compression wave was related to the 1st (r = - 0.36, p = 0.005), 3rd (r = 0.27, p = 0.036) and 4th (r = - 0.31, p = 0.017) principle components of radius. The 4th principle componentof radius also correlated with central aortic systolic pressure. These aortas had larger aortic roots, more transverse arch hypoplasia and narrower aortic isthmuses. CONCLUSIONS There are major modes of variation in 3D aortic shape after coarctation repair witha modest association between variation in aortic radius and pathological wave reflections, but not with 3D curvature. Taken together, these data suggest that shape is not the major determinant of vascular load following coarctation repair, and calibre is more important than curvature.
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Affiliation(s)
- Michael A. Quail
- Centre for Translational Cardiovascular Imaging, Institute of Cardiovascular Science, University College London and Great Ormond Street Hospital for Children, London, WC1N 3JH UK
| | - Patrick Segers
- IBiTech-bioMMeda, iMinds Medical IT, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Jennifer A. Steeden
- Centre for Translational Cardiovascular Imaging, Institute of Cardiovascular Science, University College London and Great Ormond Street Hospital for Children, London, WC1N 3JH UK
| | - Vivek Muthurangu
- Centre for Translational Cardiovascular Imaging, Institute of Cardiovascular Science, University College London and Great Ormond Street Hospital for Children, London, WC1N 3JH UK
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24
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Martins JD, Zachariah J, Selamet Tierney ES, Truong U, Morris SA, Kutty S, de Ferranti SD, Guarino M, Thomas B, Oliveira D, Marinho A, António M, Gauvreau K, Jalles N, Geva T, Carmo MM, Prakash A. Impact of Treatment Modality on Vascular Function in Coarctation of the Aorta: The LOVE - COARCT Study. J Am Heart Assoc 2019; 8:e011536. [PMID: 30929556 PMCID: PMC6509735 DOI: 10.1161/jaha.118.011536] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 01/31/2019] [Indexed: 01/04/2023]
Abstract
Background Optimally treated patients with coarctation of the aorta remain at risk for late vascular dysfunction. The effect of treatment modality on vascular function is unknown. The LOVE-COARCT (Long-term Outcomes and Vascular Evaluation After Successful Coarctation of the Aorta Treatment) study was done to compare vascular function in patients with coarctation of the aorta treated with surgery, balloon dilation (BD), or stent implantation. Methods and Results In treated coarctation of the aorta patients without residual coarctation, we prospectively compared aortic stiffness by applanation tonometry and cardiac magnetic resonance; endothelial function by endothelial pulse amplitude testing; blood pressure ( BP ) phenotype by office BP , ambulatory BP monitoring, and BP response to exercise; left ventricular mass by cardiac magnetic resonance; and blood biomarkers of endothelial function, inflammation, vascular wall function, and extracellular matrix. Participants included 75 patients treated with surgery (n=28), BD (n=23), or stent (n=24). Groups had similar age at enrollment, coarctation of the aorta severity, residual gradient, and metabolic profile, but differed by age at treatment. Prevalence of systemic hypertension, aortic stiffness, endothelial function, and left ventricular mass were similar among treatment groups. However, BD patients had more-distensible ascending aortas, lower peak systolic BP during exercise, less impairment in diurnal BP variation, and lower inflammatory biomarkers. Results were unchanged after adjustment for potential confounders, including age at treatment. Conclusions In our cohort of patients without residual coarctation, treatment modality was not associated with major vascular outcomes, even though there were some favorable vascular characteristics in the BD patients. Although this suggests that choice of treatment modality should continue to be driven by likelihood of achieving a good anatomical result, more long-term studies are required to assess the clinical significance of the more-optimal results of secondary markers of vascular function in BD patients. Clinical Trial Registration URL : http://www.clinicaltrials.gov . Unique identifier: NCT 03262753.
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Affiliation(s)
- José D. Martins
- Department of Pediatric CardiologyHospital de Santa MartaCentro Hospitalar de Lisboa CentralLisbonPortugal
| | - Justin Zachariah
- Division of Pediatric CardiologyDepartment of PediatricsTexas Children's Hospital and Baylor College of MedicineHoustonTX
| | - Elif Seda Selamet Tierney
- Division of Pediatric CardiologyDepartment of PediatricsLucile Packard Children's Hospital and Stanford UniversityPalo AltoCA
| | - Uyen Truong
- Division of Pediatric CardiologyChildren's Hospital ColoradoDenverCO
| | - Shaine A. Morris
- Division of Pediatric CardiologyDepartment of PediatricsTexas Children's Hospital and Baylor College of MedicineHoustonTX
| | - Shelby Kutty
- Division of Pediatric CardiologyChildren's Hospital and Medical CenterOmahaNE
- University of Nebraska College of MedicineOmahaNE
| | - Sarah D. de Ferranti
- Department of CardiologyBoston Children's Hospital and Harvard Medical SchoolBostonMA
| | - Maria Guarino
- CEDOC Chronic DiseasesNova Medical SchoolLisbonPortugal
| | - Boban Thomas
- Ressonância Magnética CaselasS.A. LisbonPortugal
| | - Diana Oliveira
- Biomedical Engineering DepartmentInstituto Superior TécnicoLisbonPortugal
| | - António Marinho
- Pediatric Cardiology DepartmentHospital Pediátrico de CoimbraCoimbraPortugal
| | - Marta António
- Department of Pediatric CardiologyHospital de Santa MartaCentro Hospitalar de Lisboa CentralLisbonPortugal
| | - Kimberlee Gauvreau
- Department of CardiologyBoston Children's Hospital and Harvard Medical SchoolBostonMA
| | - Nuno Jalles
- Ressonância Magnética CaselasS.A. LisbonPortugal
| | - Tal Geva
- Department of CardiologyBoston Children's Hospital and Harvard Medical SchoolBostonMA
| | | | - Ashwin Prakash
- Department of CardiologyBoston Children's Hospital and Harvard Medical SchoolBostonMA
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25
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Kowalski R, Lee MGY, Doyle LW, Cheong JLY, Smolich JJ, d'Udekem Y, Mynard JP, Cheung MMH. Reduced Aortic Distensibility is Associated With Higher Aorto-Carotid Wave Transmission and Central Aortic Systolic Pressure in Young Adults After Coarctation Repair. J Am Heart Assoc 2019; 8:e011411. [PMID: 30929595 PMCID: PMC6509708 DOI: 10.1161/jaha.118.011411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/31/2019] [Indexed: 01/09/2023]
Abstract
Background The long-term prognosis of patients with repaired aortic coarctation is characterized by high rates of cardiovascular and cerebrovascular disease related to hypertension, the basis of which remains unclear. To define potential underlying mechanisms, we investigated aortic and carotid arterial biomechanics and wave dynamics, and determinants of aortic systolic blood pressure, in young adults after coarctation repair. Methods and Results Aortic arch and carotid biomechanics, wave intensity and wave power, and central aortic blood pressure, were derived from echocardiography and brachial blood pressure in 43 young adults after coarctation repair and 42 controls. Coarctation subjects had higher brachial and central systolic blood pressure ( P=0.04), while aortic compliance was lower and characteristic impedance (Zc) higher. Although carotid intima-media thickness was higher ( P<0.001), carotid biomechanics were no different. Carotid forward compression wave power was higher and was negatively correlated with aortic compliance ( R2=0.42, P<0.001) and distensibility ( R2=0.37, P=0.001) in coarctation subjects. Aortic wave power and wave reflection indices were no different in control and coarctation patients, but coarctation patients with elevated aortic Zc had greater aorto-carotid transmission of forward compression wave power ( P=0.006). Aortic distensibility was the only independent predictor of central aortic systolic blood pressure on multivariable analysis. Conclusions Young adults following coarctation repair had a less compliant aorta, but no change in carotid biomechanics. Reduced aortic distensibility was related to greater transmission of aortic forward wave energy into the carotid artery and higher central aortic systolic blood pressure. These findings suggest that reduced aortic distensibility may contribute to later cardiovascular and cerebrovascular disease after coarctation repair.
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Affiliation(s)
- Remi Kowalski
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
- Department of CardiologyRoyal Children's HospitalParkvilleVic.Australia
- Department of PaediatricsUniversity of MelbourneMelbourneAustralia
| | - Melissa G. Y. Lee
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
| | - Lex W. Doyle
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
- Department of Newborn ServicesRoyal Women's HospitalParkvilleVic.Australia
- Department of PaediatricsUniversity of MelbourneMelbourneAustralia
- Department of Obstetrics and GynaecologyUniversity of MelbourneMelbourneAustralia
| | - Jeanie L. Y. Cheong
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
- Department of Newborn ServicesRoyal Women's HospitalParkvilleVic.Australia
- Department of Obstetrics and GynaecologyUniversity of MelbourneMelbourneAustralia
| | - Joseph J. Smolich
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
- Department of PaediatricsUniversity of MelbourneMelbourneAustralia
| | - Yves d'Udekem
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
- Department of Cardiac SurgeryRoyal Children's HospitalParkvilleVic.Australia
- Department of PaediatricsUniversity of MelbourneMelbourneAustralia
| | - Jonathan P. Mynard
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
- Department of PaediatricsUniversity of MelbourneMelbourneAustralia
- Department of Biomedical EngineeringUniversity of MelbourneMelbourneAustralia
| | - Michael M. H. Cheung
- Heart Research GroupMurdoch Children's Research InstituteParkvilleVic.Australia
- Department of CardiologyRoyal Children's HospitalParkvilleVic.Australia
- Department of PaediatricsUniversity of MelbourneMelbourneAustralia
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Marlevi D, Ruijsink B, Balmus M, Dillon-Murphy D, Fovargue D, Pushparajah K, Bertoglio C, Colarieti-Tosti M, Larsson M, Lamata P, Figueroa CA, Razavi R, Nordsletten DA. Estimation of Cardiovascular Relative Pressure Using Virtual Work-Energy. Sci Rep 2019; 9:1375. [PMID: 30718699 PMCID: PMC6362021 DOI: 10.1038/s41598-018-37714-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 12/12/2018] [Indexed: 12/21/2022] Open
Abstract
Many cardiovascular diseases lead to local increases in relative pressure, reflecting the higher costs of driving blood flow. The utility of this biomarker for stratifying the severity of disease has thus driven the development of methods to measure these relative pressures. While intravascular catheterisation remains the most direct measure, its invasiveness limits clinical application in many instances. Non-invasive Doppler ultrasound estimates have partially addressed this gap; however only provide relative pressure estimates for a range of constricted cardiovascular conditions. Here we introduce a non-invasive method that enables arbitrary interrogation of relative pressures throughout an imaged vascular structure, leveraging modern phase contrast magnetic resonance imaging, the virtual work-energy equations, and a virtual field to provide robust and accurate estimates. The versatility and accuracy of the method is verified in a set of complex patient-specific cardiovascular models, where relative pressures into previously inaccessible flow regions are assessed. The method is further validated within a cohort of congenital heart disease patients, providing a novel tool for probing relative pressures in-vivo.
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Affiliation(s)
- David Marlevi
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden.
- Department of Clinical Sciences, Karolinska Institutet, Stockholm, Sweden.
| | - Bram Ruijsink
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
- Department of Congenital Heart Disease, Evelina Children's Hospital, London, United Kingdom
| | - Maximilian Balmus
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
| | - Desmond Dillon-Murphy
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
| | - Daniel Fovargue
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
| | - Kuberan Pushparajah
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
- Department of Congenital Heart Disease, Evelina Children's Hospital, London, United Kingdom
| | - Cristóbal Bertoglio
- Bernoulli Institute, University of Groningen, Groningen, The Netherlands
- Center for Mathematical Modeling, Universidad de Chile, Santiago, Chile
| | - Massimiliano Colarieti-Tosti
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - Matilda Larsson
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Pablo Lamata
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
| | - C Alberto Figueroa
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
- Departments of Surgery and Biomedical Engineering, University of Michigan, Ann Arbor, USA
| | - Reza Razavi
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom
- Department of Congenital Heart Disease, Evelina Children's Hospital, London, United Kingdom
| | - David A Nordsletten
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, United Kingdom.
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27
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Abstract
BACKGROUND Hypertension is common in patients with coarctation of the aorta (CoA), even after successful repair. Increased aortic stiffness has been implicated in the pathology of CoA-associated hypertension. This study aimed to investigate aortic vascular function and its relationship with hypertension in well-repaired CoA-patients at long-term follow-up. Furthermore, we assessed the additive effect of hypertension to adverse arterioventricular coupling associated with increased aortic stiffness. METHODS Twenty-two CoA-patients (age 30 ± 10.6 years) with successful surgical repair (n = 12) or balloon angioplasty (BA) (n = 10) between 3 months and 16 years of age with a follow-up of >10 years and 22 healthy controls underwent cardiac magnetic resonance imaging (CMR), at mean follow-up of 29.3 years, to study aortic pulse wave velocity (PWV), aortic distensibility, global left ventricular (LV) function, LV dimensions, and LV myocardial deformation. RESULTS CoA-patients had significantly increased aortic arch PWV (5.6 ± 1.9 m/s vs. 4.5 ± 1.0 m/s, P = .02) and decreased distensibility (4.5 ± 1.8 × 10-3 mmHg-1 vs. 5.8 ± 1.8 × 10-3 mmHg-1, P = .04) compared to controls. Significant differences in aortic arch PWV were found between hypertensive patients, normotensive patients and controls (6.1 ± 1.8 m/s vs. 4.9 ± 1.9 m/s and 4.5 ± 1.0 m/s, respectively, P = .03). Aortic arch PWV and distensibility were correlated with systolic blood pressure (R = 0.37 and R = -0.37, respectively, P = .03 for both). Global LV function, LV mass, LV dimensions and myocardial deformation were similar in CoA-patients when compared to controls. CONCLUSIONS Central aortic stiffness is significantly increased in well-repaired CoA-patients long-term after repair, and is associated with hypertension. Global LV function, myocardial deformation indices and LV dimensions are however preserved.
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Affiliation(s)
- Elles J Dijkema
- Department of Pediatric Cardiology, Wilhelmina Children's Hospital, The University of Utrecht, Utrecht, The Netherlands
| | - Martijn G Slieker
- Department of Pediatric Cardiology, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Tim Leiner
- Department of Radiology, University Hospital Utrecht, Utrecht, The Netherlands
| | - Heynric B Grotenhuis
- Department of Pediatric Cardiology, Wilhelmina Children's Hospital, The University of Utrecht, Utrecht, The Netherlands.
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28
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Fernandes JF, Alves R, Ferreira da Silva T, Nordmeyer S, Hellmeier F, Goubergrits L, Hennemuth A, Berger F, Schubert S, Kuehne T, Kelm M. CMR-Based and Time-Shift Corrected Pressure Gradients Provide Good Agreement to Invasive Measurements in Aortic Coarctation. JACC Cardiovasc Imaging 2018; 11:1725-1727. [PMID: 29778860 DOI: 10.1016/j.jcmg.2018.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 11/30/2022]
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29
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Foulds HJA, Giacomantonio NB, Bredin SSD, Warburton DER. A systematic review and meta-analysis of exercise and exercise hypertension in patients with aortic coarctation. J Hum Hypertens 2017; 31:768-775. [PMID: 28770819 DOI: 10.1038/jhh.2017.55] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 05/11/2017] [Accepted: 06/14/2017] [Indexed: 11/09/2022]
Abstract
Exercise hypertension is a common occurrence among individuals with aortic coarctation. Although exercise is known to be beneficial among the general population, the risks and benefits of exercise among those with aortic coarctation are less clear. This systematic review evaluates the benefits and risks of exercise for persons with aortic coarctation. Electronic databases were systematically searched (that is, MEDLINE and EMBASE) and key reviews cross-referenced to identify articles for inclusion. Original research articles reporting exercise among individuals with aortic coarctation were included. From 2608 individual citations, 68 eligible articles were identified. Aerobic exercise stress tests were found to be useful for determining exercise hypertension experiences post-surgical repair (N=5), and other long-term secondary findings (N=3). Experiences of exercise hypertension were associated with abnormal cardiac and/or aortic geometry and cardiac function (N=7). Exercise capacity was generally found to be similar to non-aortic coarctation controls post surgery (N=6). Exercise hypertension was experienced by 27% of participants, including 10% of adults and 43% of children/youth. Individuals who experience exercise hypertension experience greater increases in systolic blood pressure with exercise. No investigations identified evaluated forms of exercise other than aerobic stress tests and no exercise training programs have been conducted to date. Exercise stress tests can be valuable in this population for determining exercise hypertension, especially in the year post-surgical repair. Additional research is urgently needed to accurately assess the benefits and risks of exercise and exercise hypertension, and applicability of exercise restrictions for this population.
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Affiliation(s)
- H J A Foulds
- College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - N B Giacomantonio
- Division of Cardiology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Cardiology, QEII Health Sciences Centre, Halifax, Nova Scotia, Canada
| | - S S D Bredin
- Physical Activity Promotion and Chronic Disease Prevention Unit, Vancouver, British Columbia, Canada
- Systematic Reviews Unit, University of British Columbia, Vancouver, British Columbia, Canada
| | - D E R Warburton
- Physical Activity Promotion and Chronic Disease Prevention Unit, Vancouver, British Columbia, Canada
- Cardiovascular Physiology and Rehabilitation Laboratory, University of British Columbia, Vancouver, British Columbia, Canada
- Experimental Medicine Program, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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30
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Gounley J, Chaudhury R, Vardhan M, Driscoll M, Pathangey G, Winarta K, Ryan J, Frakes D, Randles A. Does the degree of coarctation of the aorta influence wall shear stress focal heterogeneity? Annu Int Conf IEEE Eng Med Biol Soc 2017; 2016:3429-3432. [PMID: 28269039 DOI: 10.1109/embc.2016.7591465] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The development of atherosclerosis in the aorta is associated with low and oscillatory wall shear stress for normal patients. Moreover, localized differences in wall shear stress heterogeneity have been correlated with the presence of complex plaques in the descending aorta. While it is known that coarctation of the aorta can influence indices of wall shear stress, it is unclear how the degree of narrowing influences resulting patterns. We hypothesized that the degree of coarctation would have a strong influence on focal heterogeneity of wall shear stress. To test this hypothesis, we modeled the fluid dynamics in a patient-specific aorta with varied degrees of coarctation. We first validated a massively parallel computational model against experimental results for the patient geometry and then evaluated local shear stress patterns for a range of degrees of coarctation. Wall shear stress patterns at two cross sectional slices prone to develop atherosclerotic plaques were evaluated. Levels at different focal regions were compared to the conventional measure of average circumferential shear stress to enable localized quantification of coarctation-induced shear stress alteration. We find that the coarctation degree causes highly heterogeneous changes in wall shear stress.
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31
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Mizutani Y, Tada N, Masuda T, Hata M. Simultaneous Transcatheter Intervention for Coarctation of the Aorta and Bicuspid Aortic Valve. J Heart Valve Dis 2017; 26:481-484. [PMID: 29302949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Coarctation of the aorta (CoA) is a relatively common congenital heart anomaly, and bicuspid aortic valve (BAV) is a common congenital heart disease that coexists with CoA. In larger children and adults with CoA, transcatheter intervention has gained acceptance, but for surgical high-risk patients with aortic stenosis, the use of transcatheter aortic valve implantation (TAVI) has been established. Recently, although favorable data have been reported for TAVI when treating BAV, simultaneous transcatheter intervention for CoA and BAV will prove to be a challenge because of the unique anatomy involved requires multiple procedural steps and also has problems of site access. Herein is reported a successful case of simultaneous thoracic endovascular repair (TEVAR) for CoA and transfemoral TAVI for congenital BAV dysfunction. A 62-year-old male with CoA and congenital BAV with severe aortic stenosis and aortic regurgitation had NYHA class IV heart failure symptoms. Because of the patient's extremely poor left ventricular function, the authors' heart team decided to perform simultaneous TEVAR for CoA and transfemoral TAVI. After deployment of a 32 mm stent graft, a 29 mm SAPIEN 3 valve (Edwards Lifesciences, Irvine, CA, USA) was successfully deployed through the stent graft. This resulted in no significant pressure gradient within the aorta, and no aortic regurgitation. Video 1: Cineradiography showing delivery of the Edwards Commander delivery system through the stent graft. Video 2: Final aortography showing no residual aortic regurgitation.
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Affiliation(s)
- Yukiko Mizutani
- Department of Cardiology, Sendai Konsei Hospital, Sendai, Japan. Electronic correspondence:
| | - Norio Tada
- Department of Cardiology, Sendai Konsei Hospital, Sendai, Japan
| | - Takahiko Masuda
- Department of Cardiac Surgery, Sendai Konsei Hospital, Sendai, Japan
| | - Masaki Hata
- Department of Cardiac Surgery, Sendai Konsei Hospital, Sendai, Japan
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Lee MGY, Hemmes RA, Mynard J, Lambert E, Head GA, Cheung MMH, Konstantinov IE, Brizard CP, Lambert G, d'Udekem Y. Elevated sympathetic activity, endothelial dysfunction, and late hypertension after repair of coarctation of the aorta. Int J Cardiol 2017; 243:185-190. [PMID: 28545853 DOI: 10.1016/j.ijcard.2017.05.075] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/16/2017] [Accepted: 05/17/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is a high prevalence of late hypertension after coarctation repair. The relative contribution of elevated sympathetic tone and endothelial dysfunction to its development is unknown. This study aims to investigate the neural profile of coarctation patients including muscle sympathetic nerve activity testing to directly measure sympathetic nervous activity. METHODS Twenty-three patients aged ≥18years with a coarctation repair underwent measurements of clinic and 24-h blood pressures, muscle sympathetic nerve activity, sympathetic and cardiac baroreflex functions, digital endothelial function, and ambulatory arterial stiffness index. Median age at repair was 1.2months (interquartile range: 0-9months). Patients were compared to 17 healthy matched controls. RESULTS After 26±5years, 6% (1/18) and 44% (8/18) suffered clinic hypertension and prehypertension, respectively. On 24-h blood pressure monitoring, 15% (3/20) and 20% (4/20) had hypertension and prehypertension, respectively. Coarctation patients had elevated muscle sympathetic nerve activity compared with controls (49.6±24.9 vs. 29.9±14.0 bursts/100 heartbeats, p=0.02), dampened sympathetic baroreflex function (-2.2±2.1 vs. -7.0±5.6 bursts/100heartbeats·mm·Hg-1, p=0.007), normal cardiac baroreflex function (41.9±30.4 vs. 35.7±21.1ms·mm·Hg-1, p=0.6), endothelial dysfunction (pulse amplitude tonometry ratio: 0.39±0.32 vs. 0.81±0.50, p=0.004), and increased ambulatory arterial stiffness index (0.46±0.15 vs. 0.29±0.17, p=0.008). CONCLUSION After coarctation repair patients have increased muscle sympathetic nerve activity, dampened sympathetic baroreflex response, endothelial dysfunction, and increased ambulatory arterial stiffness index, all of which may contribute to the development of late hypertension.
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Affiliation(s)
- Melissa G Y Lee
- Department of Cardiac Surgery, The Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Heart Research, Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia.
| | - Robyn A Hemmes
- Human Neurotransmitters Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Australia.
| | - Jonathan Mynard
- Heart Research, Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia.
| | - Elisabeth Lambert
- Human Neurotransmitters Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Australia; Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Australia.
| | - Geoffrey A Head
- Neuropharmacology Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Australia.
| | - Michael M H Cheung
- Department of Paediatrics, University of Melbourne, Melbourne, Australia; Heart Research, Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia; Department of Cardiology, The Royal Children's Hospital, Melbourne, Australia.
| | - Igor E Konstantinov
- Department of Cardiac Surgery, The Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Heart Research, Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia.
| | - Christian P Brizard
- Department of Cardiac Surgery, The Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Heart Research, Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia.
| | - Gavin Lambert
- Human Neurotransmitters Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Australia; Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Australia.
| | - Yves d'Udekem
- Department of Cardiac Surgery, The Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Heart Research, Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia.
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Rahman MN, Gul I, Nabi A. A Multiparous Woman with Lately Diagnosed Multilevel Left Ventricular Obstruction. J Coll Physicians Surg Pak 2017; 27:305-307. [PMID: 28599694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 01/21/2017] [Indexed: 06/07/2023]
Abstract
A 56-year hypertensive, multiparous woman presented to the cardiology unit with Canadian Cardiovascular Society (CCS) class-III angina and worsening dyspnea for the past few weeks. Her clinical examination showed high blood pressure and mid-systolic crescendo-decrescendo murmur radiating to carotids. However, there was no radio-femoral delay or significant blood pressure difference between her arms. Her transthoracic echocardiography (TTE) revealed moderate aortic stenosis (AS) and mid cavity left ventricular outflow (LVO) obstruction. Left heart catheterization (LHC) showed coarctation of aorta with extensive collaterals, mid cavity LVO obstruction, and moderate AS. Thus, she was diagnosed as a case of multi-level LVO obstruction including mid cavity LVO obstruction AS and coarctation of aorta. She underwent stenting of aortic coarctation as the initial step of graded approach to her disease, and is doing well.
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Affiliation(s)
- Muhammad Nasir Rahman
- Department of Medicine, Section of Cardiology, The Aga Khan University Hospital, Karachi
| | - Ibrahim Gul
- Department of Medicine, Section of Cardiology, The Aga Khan University Hospital, Karachi
| | - Amjad Nabi
- Department of Medicine, Section of Cardiology, The Aga Khan University Hospital, Karachi
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Wagner JB, Knowlton JQ, Pastuszko P, Shah SS. A Rare Case of Vascular Ring and Coarctation of the Aorta in Association with CHARGE Syndrome. Tex Heart Inst J 2017; 44:138-140. [PMID: 28461801 DOI: 10.14503/thij-16-5819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A male neonate presented with CHARGE syndrome, a multiorgan genetic disorder involving the Coloboma of the eyes, congenital Heart defects, nasal choanal Atresia, growth and development Retardation, Genitourinary disorders, and Ear anomalies and deafness. Moreover, he had a rare case of vascular ring-consisting of a right aortic arch with retroesophageal brachiocephalic artery-combined with coarctation of the mid-aortic arch. He underwent both vascular ring and aortic arch repair at our institution. To our knowledge, this is the 4th documented case of this exceedingly rare type of aortic arch anomaly combined with aortic arch obstruction. Moreover, it is the first confirmed case of these combined disorders occurring in CHARGE syndrome. This report describes a truly rare case and reveals the limitations of echocardiography in detecting complex aortic arch anomalies while illustrating the benefits of advanced imaging prior to surgical intervention.
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35
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van Engelen A, Silva Vieira M, Rafiq I, Cecelja M, Schneider T, de Bliek H, Figueroa CA, Hussain T, Botnar RM, Alastruey J. Aortic length measurements for pulse wave velocity calculation: manual 2D vs automated 3D centreline extraction. J Cardiovasc Magn Reson 2017; 19:32. [PMID: 28270208 PMCID: PMC5341448 DOI: 10.1186/s12968-017-0341-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 02/16/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Pulse wave velocity (PWV) is a biomarker for the intrinsic stiffness of the aortic wall, and has been shown to be predictive for cardiovascular events. It can be assessed using cardiovascular magnetic resonance (CMR) from the delay between phase-contrast flow waveforms at two or more locations in the aorta, and the distance on CMR images between those locations. This study aimed to investigate the impact of different distance measurement methods on PWV. We present and evaluate an algorithm for automated centreline tracking in 3D images, and compare PWV calculations using distances derived from 3D images to those obtained from a conventional 2D oblique-sagittal image of the aorta. METHODS We included 35 patients from a twin cohort, and 20 post-coarctation repair patients. Phase-contrast flow was acquired in the ascending, descending and diaphragmatic aorta. A 3D centreline tracking algorithm is presented and evaluated on a subset of 30 subjects, on three CMR sequences: balanced steady-state free precession (SSFP), black-blood double inversion recovery turbo spin echo, and contrast-enhanced CMR angiography. Aortic lengths are subsequently compared between measurements from a 2D oblique-sagittal plane, and a 3D geometry. RESULTS The error in length of automated 3D centreline tracking compared with manual annotations ranged from 2.4 [1.8-4.3] mm (mean [IQR], black-blood) to 6.4 [4.7-8.9] mm (SSFP). The impact on PWV was below 0.5m/s (<5%). Differences between 2D and 3D centreline length were significant for the majority of our experiments (p < 0.05). Individual differences in PWV were larger than 0.5m/s in 15% of all cases (thoracic aorta) and 37% when studying the aortic arch only. Finally, the difference between end-diastolic and end-systolic 2D centreline lengths was statistically significant (p < 0.01), but resulted in small differences in PWV (0.08 [0.04 - 0.10]m/s). CONCLUSIONS Automatic aortic centreline tracking in three commonly used CMR sequences is possible with good accuracy. The 3D length obtained from such sequences can differ considerably from lengths obtained from a 2D oblique-sagittal plane, depending on aortic curvature, adequate planning of the oblique-sagittal plane, and patient motion between acquisitions. For accurate PWV measurements we recommend using 3D centrelines.
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Affiliation(s)
- Arna van Engelen
- Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King’s College London, St Thomas’ Hospital, 4th floor Lambeth Wing, Westminster Bridge Road, London, SE17EH UK
| | - Miguel Silva Vieira
- Department of Cardiovascular Imaging, Division of Imaging Sciences and Biomedical Engineering, King’s College London, St Thomas’ Hospital, 4th floor Lambeth Wing, Westminster Bridge Road, London, SE17EH UK
| | - Isma Rafiq
- Department of Cardiovascular Imaging, Division of Imaging Sciences and Biomedical Engineering, King’s College London, St Thomas’ Hospital, 4th floor Lambeth Wing, Westminster Bridge Road, London, SE17EH UK
| | - Marina Cecelja
- Department of Clinical Pharmacology, St Thomas’ Hospital, Westminster Bridge Road, London, SE17EH UK
| | | | | | - C. Alberto Figueroa
- Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King’s College London, St Thomas’ Hospital, 4th floor Lambeth Wing, Westminster Bridge Road, London, SE17EH UK
- Department of Bioengineering and Surgery, University of Michigan, Ann Arbor, MI USA
| | - Tarique Hussain
- Department of Cardiovascular Imaging, Division of Imaging Sciences and Biomedical Engineering, King’s College London, St Thomas’ Hospital, 4th floor Lambeth Wing, Westminster Bridge Road, London, SE17EH UK
- Department of Pediatrics, Pediatric Cardiology, UT Southwestern Medical Center, Dallas, USA
| | - Rene M. Botnar
- Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King’s College London, St Thomas’ Hospital, 4th floor Lambeth Wing, Westminster Bridge Road, London, SE17EH UK
- Pontificia Universidad Católica de Chile, Escuela de Ingeniería, Santiago, Chile
| | - Jordi Alastruey
- Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King’s College London, St Thomas’ Hospital, 4th floor Lambeth Wing, Westminster Bridge Road, London, SE17EH UK
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Carlisle AJ, Shah AD, Appel D, Kogon BE. Unusual Repair of Aortic Coarctation: Transcatheter Intervention Implications. J Invasive Cardiol 2017; 29:E41-E42. [PMID: 28255109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A 56-year old male was evaluated for exertional dyspnea. He had previously undergone mechanical aortic valve replacement and aortic coarctation repair. Following uncomplicated coronary angiography using Judkins left and right catheters, aortography revealed that the loud murmur was related to an unusual, extra-anatomic surgical repair: transverse aorta to descending aorta bypass. Recognition of an extra-anatomic surgical bypass of coarctation is important, as this repair would leave a continuous murmur on exam.
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Affiliation(s)
| | - Anand D Shah
- Emory Heart and Vascular Center at St Joseph's, 5671 Peachtree-Dunwoody Rd, St 300B, Atlanta, GA 30342 USA.
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37
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Charchyan ER, Belov YV, Skvortsov AA, Salagaev GI. [Simultaneous Bentall-de-Bono procedure and descending thoracic aortic bypass through median sternotomy]. Khirurgiia (Mosk) 2017:69-71. [PMID: 29186100 DOI: 10.17116/hirurgia20171169-71] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- E R Charchyan
- Department of Aortic surgery, Petrovsky Russian Research Center of Surgery, Moscow, Russia
| | - Yu V Belov
- Department of Aortic surgery, Petrovsky Russian Research Center of Surgery, Moscow, Russia
| | - A A Skvortsov
- Department of Aortic surgery, Petrovsky Russian Research Center of Surgery, Moscow, Russia
| | - G I Salagaev
- Department of Aortic surgery, Petrovsky Russian Research Center of Surgery, Moscow, Russia
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38
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Voges I, Kees J, Jerosch-Herold M, Gottschalk H, Trentmann J, Hart C, Gabbert DD, Pardun E, Pham M, Andrade AC, Wegner P, Kristo I, Jansen O, Kramer HH, Rickers C. Aortic stiffening and its impact on left atrial volumes and function in patients after successful coarctation repair: a multiparametric cardiovascular magnetic resonance study. J Cardiovasc Magn Reson 2016; 18:56. [PMID: 27618813 PMCID: PMC5020476 DOI: 10.1186/s12968-016-0278-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 08/26/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The increased cardiovascular morbidity of adults with late repair of aortic coarctation (CoA) has been well documented. In contrast, successful CoA repair in early childhood has a generally good prognosis, though adverse vascular and ventricular characteristics may be abnormal, which could increase long-term risk. This study sought to perform a comprehensive analysis of aortic elasticity and left ventricular (LV) function in patients with aortic coarctation (CoA) using cardiovascular magnetic resonance (CMR). In a subgroup of patients, we assessed structure and function of the common carotid arteries to probe for signs of systemic vascular remodeling. METHODS Fifty-one patients (median age 17.3 years), 13.9 ± 7.5 years after CoA repair, and 54 controls (median age 19.8 years) underwent CMR. We determined distensibility and pulse wave velocity (PWV) at different aortic locations. In a subgroup, common carotid artery distensibility, PWV, wall thickness and wall area were measured. LV ejection fraction (EF), volumes, and mass were measured from short axis views. Left atrial (LA) volumes and functional parameters (LAEFPassive, LAEFContractile, LAEFReservoir) were assessed from axial cine images. RESULTS In patients distensibility of the whole thoracic aorta was reduced (p < 0.05) while PWV was only significantly higher in the aortic arch (p < 0.01). Distensibility of the descending aorta at the level of the pulmonary arteries and PWV in the descending aorta, both correlated negatively with age at CoA repair. LA volume before atrial contraction and minimal LA volume were higher in patients (p < 0.05). LAEFPassive and LAEFReservoir were reduced (p < 0.05), and LAEFReservoir correlated negatively with aortic arch PWV (p < 0.05). LVEF, volumes and mass were not different from controls. Carotid wall thickness and PWV were higher in patients compared to controls (p < 0.05). CONCLUSIONS Patients after CoA repair have impaired bioelastic properties of the thoracic aorta with impact on LV diastolic function. Reduced descending aortic elasticity is associated with older age at time of CoA repair. The remodeling of the common carotid artery in our sub-study suggests systemic vessel wall changes.
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Affiliation(s)
- Inga Voges
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Julian Kees
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Michael Jerosch-Herold
- Department of Radiology, Brigham & Women’s Hospital and Harvard Medical School, 75 Francis Street, Boston, MA 02115 USA
| | - Hannes Gottschalk
- Department of Diagnostic Radiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - Jens Trentmann
- Department of Diagnostic Radiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - Christopher Hart
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Dominik D. Gabbert
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Eileen Pardun
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Minh Pham
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Ana C. Andrade
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Philip Wegner
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Ines Kristo
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Olav Jansen
- Department of Diagnostic Radiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - Hans-Heiner Kramer
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
| | - Carsten Rickers
- Department of Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, Haus 9, 24105 Kiel, Germany
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Wendell DC, Samyn MM, Cava JR, Krolikowski MM, LaDisa JF. The Impact of Cardiac Motion on Aortic Valve Flow Used in Computational Simulations of the Thoracic Aorta. J Biomech Eng 2016; 138:2531718. [PMID: 27367143 DOI: 10.1115/1.4033964] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Indexed: 02/04/2023]
Abstract
Advancements in image-based computational modeling are producing increasingly more realistic representations of vasculature and hemodynamics, but so far have not compensated for cardiac motion when imposing inflow boundary conditions. The effect of cardiac motion on aortic flow is important when assessing sequelae in this region including coarctation of the aorta (CoA) or regurgitant fraction. The objective of this investigation was to develop a method to assess and correct for the influence of cardiac motion on blood flow measurements through the aortic valve (AoV) and to determine its impact on patient-specific local hemodynamics quantified by computational fluid dynamics (CFD). A motion-compensated inflow waveform was imposed into the CFD model of a patient with repaired CoA that accounted for the distance traveled by the basal plane during the cardiac cycle. Time-averaged wall shear stress (TAWSS) and turbulent kinetic energy (TKE) values were compared with CFD results of the same patient using the original waveform. Cardiac motion resulted in underestimation of flow during systole and overestimation during diastole. Influences of inflow waveforms on TAWSS were greatest along the outer wall of the ascending aorta (AscAo) (∼30 dyn/cm2). Differences in TAWSS were more pronounced than those from the model creation or mesh dependence aspects of CFD. TKE was slightly higher for the motion-compensated waveform throughout the aortic arch. These results suggest that accounting for cardiac motion when quantifying blood flow through the AoV can lead to different conclusions for hemodynamic indices, which may be important if these results are ultimately used to predict patient outcomes.
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Shikata F, Okamura T, Higaki T, Okura M, Kojima A, Uchita S, Izutani H. Aortic Coarctation 28 Days after an Arterial Switch Operation in a Neonate. Tex Heart Inst J 2016; 43:354-6. [PMID: 27547151 DOI: 10.14503/thij-15-5380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Aortic coarctation rarely occurs after an arterial switch operation for D-transposition of the great arteries with intact ventricular septum. We report the case of a neonate patient in whom aortic coarctation developed 28 days after an uncomplicated arterial switch operation. Preoperatively, the aorta was noted to have an irregular shape, but there was no pressure gradient across the lesion. The patient underwent successful reoperation to correct the coarctation. We hope that our report raises awareness of a rare early complication after arterial switch operation with intact ventricular septum, and the need to carefully monitor the aortic isthmus in patients who have aortic irregularities, even in the absence of a pressure gradient.
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Mivelaz Y, Leung MT, Zadorsky MT, De Souza AM, Potts JE, Sandor GGS. Noninvasive Assessment of Vascular Function in Postoperative Cardiovascular Disease (Coarctation of the Aorta, Tetralogy of Fallot, and Transposition of the Great Arteries). Am J Cardiol 2016; 118:597-602. [PMID: 27401272 DOI: 10.1016/j.amjcard.2016.05.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/23/2016] [Accepted: 05/23/2016] [Indexed: 11/19/2022]
Abstract
Using noninvasive techniques, we sought to assess arterial stiffness, impedance, hydraulic power, and efficiency in children with postoperative tetralogy of Fallot (TOF), coarctation of the aorta (COA), and transposition of the great arteries (TGAs). Results were compared with those of healthy peers. Fifty-five children with repaired congenital heart disease (24 TOFs, 20 COAs, and 11 TGAs) were compared with 55 age-matched control subjects (CTRL). Echocardiographic Doppler imaging and carotid artery applanation tonometry were preformed to measure aortic flow, dimensions, and calculate pulse wave velocity, vascular impedance and arterial stiffness indexes, hydraulic power (mean and total), and hydraulic efficiency (HE) which were calculated using standard fluid dynamics equations. All congenital heart disease subgroups had higher pulse wave velocity than CTRL. Only the COA group had higher characteristic impedance. Mean power was higher in TGA than in CTRL and TOF, and total power was higher in TGA than in CTRL and TOF. Hydraulic efficiency was higher in TOF than in COA and TGA. In conclusion, children with TOF, COA, and TGA have stiffer aortas than CTRL. These changes may be related to intrinsic aortic abnormalities, altered integrity of the aorta due to surgical repair, and/or acquired postsurgery. These patients may be at increased long-term cardiovascular risk, and long-term follow-up is important for monitoring and assessment of efforts to reduce risk.
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Affiliation(s)
- Yvan Mivelaz
- Division of Cardiology, Department of Pediatrics, British Columbia Children's Hospital, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Mande T Leung
- Division of Cardiology, Department of Pediatrics, British Columbia Children's Hospital, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Mary Terri Zadorsky
- Division of Cardiology, Department of Pediatrics, British Columbia Children's Hospital, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Astrid M De Souza
- Division of Cardiology, Department of Pediatrics, British Columbia Children's Hospital, The University of British Columbia, Vancouver, British Columbia, Canada
| | - James E Potts
- Division of Cardiology, Department of Pediatrics, British Columbia Children's Hospital, The University of British Columbia, Vancouver, British Columbia, Canada
| | - George G S Sandor
- Division of Cardiology, Department of Pediatrics, British Columbia Children's Hospital, The University of British Columbia, Vancouver, British Columbia, Canada.
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Suárez de Lezo J, Romero M, Pan M, Suárez de Lezo J, Segura J, Ojeda S, Pavlovic D, Mazuelos F, López Aguilera J, Espejo Perez S. Stent Repair for Complex Coarctation of Aorta. JACC Cardiovasc Interv 2016; 8:1368-1379. [PMID: 26315741 DOI: 10.1016/j.jcin.2015.05.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/13/2015] [Accepted: 05/07/2015] [Indexed: 11/19/2022]
Abstract
OBJECTIVES This study sought to determine whether several anatomic or evolving characteristics of the coarctation may create challenging conditions for treatment. BACKGROUND Stent repair of coarctation of aorta is an alternative to surgical correction. METHODS We analyzed our 21-year experience in the percutaneous treatment of complex coarctation of aorta. Adverse conditions for treatment were as follow: 1) complete interruption of the aortic arch (n = 11); 2) associated aneurysm (n = 18); 3) complex stenosis (n = 30); and 4) the need for re-expansion and/or restenting (n = 21). Twenty patients (33%) belonged to more than 1 group. Ten interruptions were type A and 1 was type B. The mean length of the interrupted aorta was 9 ± 11 mm. The associated aneurysms were native in 8 patients and after previous intervention in 10 patients. Aneurysm shapes were fusiform in 8 patients and saccular in 10. The following characteristics defined complex stenosis as long diffuse stenosis, very tortuous coarctation, or stenosis involving a main branch or an unusual location. Patients previously stented at an early age, required re-expansion and/or restenting after reaching 16 ± 5 years of age. RESULTS Two patients had died by 1-month follow-up. The remaining 58 patients did well and were followed-up for a mean period of 10 ± 6 years. Late adverse events occurred in 3 patients (5%). All remaining patients are symptom-free, with normal baseline blood pressure. Imaging techniques revealed good patency at follow-up without associated aneurysm or restenosis. The actuarial survival free probability of all complex patients at 15 years was 92%. CONCLUSIONS Stent repair of complex coarctation of aorta is feasible and safe. Initial results are maintained at later follow-up.
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Affiliation(s)
- José Suárez de Lezo
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain.
| | - Miguel Romero
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - Manuel Pan
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - Javier Suárez de Lezo
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - José Segura
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - Soledad Ojeda
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - Djordje Pavlovic
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - Francisco Mazuelos
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - José López Aguilera
- Department of Cardiology, Reina Sofia University Hospital, University of Córdoba and Instituto Maimónides para la Investigación Biomédica en Córdoba, Córdoba, Spain
| | - Simona Espejo Perez
- Department of Radiology, Reina Sofia University Hospital, University of Córdoba and IMIBIC, Córdoba, Spain
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Bruse JL, McLeod K, Biglino G, Ntsinjana HN, Capelli C, Hsia TY, Sermesant M, Pennec X, Taylor AM, Schievano S. A statistical shape modelling framework to extract 3D shape biomarkers from medical imaging data: assessing arch morphology of repaired coarctation of the aorta. BMC Med Imaging 2016; 16:40. [PMID: 27245048 PMCID: PMC4894556 DOI: 10.1186/s12880-016-0142-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 05/19/2016] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Medical image analysis in clinical practice is commonly carried out on 2D image data, without fully exploiting the detailed 3D anatomical information that is provided by modern non-invasive medical imaging techniques. In this paper, a statistical shape analysis method is presented, which enables the extraction of 3D anatomical shape features from cardiovascular magnetic resonance (CMR) image data, with no need for manual landmarking. The method was applied to repaired aortic coarctation arches that present complex shapes, with the aim of capturing shape features as biomarkers of potential functional relevance. The method is presented from the user-perspective and is evaluated by comparing results with traditional morphometric measurements. METHODS Steps required to set up the statistical shape modelling analyses, from pre-processing of the CMR images to parameter setting and strategies to account for size differences and outliers, are described in detail. The anatomical mean shape of 20 aortic arches post-aortic coarctation repair (CoA) was computed based on surface models reconstructed from CMR data. By analysing transformations that deform the mean shape towards each of the individual patient's anatomy, shape patterns related to differences in body surface area (BSA) and ejection fraction (EF) were extracted. The resulting shape vectors, describing shape features in 3D, were compared with traditionally measured 2D and 3D morphometric parameters. RESULTS The computed 3D mean shape was close to population mean values of geometric shape descriptors and visually integrated characteristic shape features associated with our population of CoA shapes. After removing size effects due to differences in body surface area (BSA) between patients, distinct 3D shape features of the aortic arch correlated significantly with EF (r = 0.521, p = .022) and were well in agreement with trends as shown by traditional shape descriptors. CONCLUSIONS The suggested method has the potential to discover previously unknown 3D shape biomarkers from medical imaging data. Thus, it could contribute to improving diagnosis and risk stratification in complex cardiac disease.
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Affiliation(s)
- Jan L Bruse
- Centre for Cardiovascular Imaging, University College London, Institute of Cardiovascular Science & Cardiorespiratory Unit, Great Ormond Street Hospital for Children, London, UK.
| | - Kristin McLeod
- Cardiac Modelling Department, Simula Research Laboratory, Oslo, Norway
- Inria Sophia Antipolis-Méditeranée, ASCLEPIOS Project, Sophia Antipolis, France
| | - Giovanni Biglino
- Centre for Cardiovascular Imaging, University College London, Institute of Cardiovascular Science & Cardiorespiratory Unit, Great Ormond Street Hospital for Children, London, UK
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Hopewell N Ntsinjana
- Centre for Cardiovascular Imaging, University College London, Institute of Cardiovascular Science & Cardiorespiratory Unit, Great Ormond Street Hospital for Children, London, UK
| | - Claudio Capelli
- Centre for Cardiovascular Imaging, University College London, Institute of Cardiovascular Science & Cardiorespiratory Unit, Great Ormond Street Hospital for Children, London, UK
| | - Tain-Yen Hsia
- Centre for Cardiovascular Imaging, University College London, Institute of Cardiovascular Science & Cardiorespiratory Unit, Great Ormond Street Hospital for Children, London, UK
| | - Maxime Sermesant
- Inria Sophia Antipolis-Méditeranée, ASCLEPIOS Project, Sophia Antipolis, France
| | - Xavier Pennec
- Inria Sophia Antipolis-Méditeranée, ASCLEPIOS Project, Sophia Antipolis, France
| | - Andrew M Taylor
- Centre for Cardiovascular Imaging, University College London, Institute of Cardiovascular Science & Cardiorespiratory Unit, Great Ormond Street Hospital for Children, London, UK
| | - Silvia Schievano
- Centre for Cardiovascular Imaging, University College London, Institute of Cardiovascular Science & Cardiorespiratory Unit, Great Ormond Street Hospital for Children, London, UK
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Zhang HY. Upper-to-lower-limb Collateral Circulation in a Patient with Aortic Coarctation. Eur J Vasc Endovasc Surg 2016; 51:749. [PMID: 27010661 DOI: 10.1016/j.ejvs.2016.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 02/13/2016] [Indexed: 11/16/2022]
Affiliation(s)
- H Y Zhang
- Department of Vascular Surgery, The Second Affiliated Hospital of Jiaxing Medical College, Zhejiang, China.
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Phillips AR, Eliason JL, Stanley JC, Coleman DM. Infantile Renovascular Hypertension with Failure to Thrive. Ann Vasc Surg 2016; 33:227.e5-8. [PMID: 26965798 DOI: 10.1016/j.avsg.2015.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 10/08/2015] [Accepted: 12/02/2015] [Indexed: 11/18/2022]
Abstract
Severe hypertension in infancy is a rare cause of failure to thrive. The successful surgical management of this disease in an infant having refractory renovascular hypertension and growth failure is reported.
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Affiliation(s)
- Amanda R Phillips
- Section of Vascular Surgery, University of Michigan Frankel Cardiovascular Center, Ann Arbor, MI
| | - Jonathan L Eliason
- Section of Vascular Surgery, University of Michigan Frankel Cardiovascular Center, Ann Arbor, MI
| | - James C Stanley
- Section of Vascular Surgery, University of Michigan Frankel Cardiovascular Center, Ann Arbor, MI
| | - Dawn M Coleman
- Section of Vascular Surgery, University of Michigan Frankel Cardiovascular Center, Ann Arbor, MI.
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Kowalik E, Kowalski M, Klisiewicz A, Hoffman P. Global area strain is a sensitive marker of subendocardial damage in adults after optimal repair of aortic coarctation: three-dimensional speckle-tracking echocardiography data. Heart Vessels 2016; 31:1790-1797. [PMID: 26843196 PMCID: PMC5085995 DOI: 10.1007/s00380-016-0803-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 01/22/2016] [Indexed: 01/20/2023]
Abstract
Aortic coarctation (CoA) in adults is associated with reduced survival. Despite successful repair, some unfavorable changes in the left ventricular (LV) myocardial function are reported. Three-dimensional speckle-tracking imaging (3D-STE) is a novel method that allows to assess regional myocardial function in all directions simultaneously and to calculate global area strain which integrates longitudinal and circumferential deformation. The aim of our study was to assess whether 3-D STE provides any new characteristics of LV deformation in patients with optimal CoA repair. Adults after CoA correction underwent transthoracic echocardiographic examinations. Patients with significant concomitant lesions were ruled out. Global longitudinal strain (GLS), global circumferential strain (GCS), global area strain (GAS), and global radial strain (GRS) were assessed using 3D-STE (Echopac Software, GE). The data were compared with those obtained from healthy subjects. 26 adults (9F/17M; mean age 24.4 years) with repaired CoA were studied. Despite preserved LVEFs, patients with repaired CoA had decreased GAS compared with controls (−28.8 vs. −31.7 %; p = 0.007). No differences between patients and healthy subjects in terms of GLS, GCS and GRS were observed. We found a significant correlation between mean blood pressure and GAS (R = 0.39; p < 0.05). No significant influence of age at repair, CoA correction method or LV mass on three-dimensional deformation was observed. Summarizing, global area strain derived from 3D-STE may be a sensitive indicator of subclinical LV dysfunction in patients after optimal repair of CoA. Mean blood pressure, but not age at correction seems to determine LV deformation.
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Affiliation(s)
- Ewa Kowalik
- Department of Congenital Heart Disease, Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland.
| | - Mirosław Kowalski
- Department of Congenital Heart Disease, Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland
| | - Anna Klisiewicz
- Department of Congenital Heart Disease, Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland
| | - Piotr Hoffman
- Department of Congenital Heart Disease, Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland
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Perry PA, Young N. Aortic Root Enlargement with Ascending-to-Descending Aortic Bypass in Repair of Coarctation. J Heart Valve Dis 2015; 24:516-518. [PMID: 26897826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ascending-to-descending aortic bypass is a valuable technique for addressing coarctation of the aorta when additional cardiac procedures are indicated in adults. Among these, aortic valve replacement is one of the most commonly performed concomitant procedures, and there are instances in which aortic root enlargement is required. Herein, a novel technique is described for performing simultaneous ascending-to-descending aortic bypass in conjunction with aortic root enlargement which incorporates the bypass graft as part of the aortic root enlargement.
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Jashari H, Rydberg A, Ibrahimi P, Bajraktari G, Henein MY. Left ventricular response to pressure afterload in children: aortic stenosis and coarctation: a systematic review of the current evidence. Int J Cardiol 2015; 178:203-9. [PMID: 25464254 DOI: 10.1016/j.ijcard.2014.10.089] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Revised: 10/10/2014] [Accepted: 10/18/2014] [Indexed: 02/05/2023]
Abstract
Congenital aortic stenosis (CAS) and Coarctation of Aorta (CoA) represent two forms of pressure afterload that affect the left ventricle (LV), hence require regular echocardiographic monitoring. Subclinical dysfunction of the LV exists even in asymptomatic patients with preserved left ventricular ejection fraction (EF), implying low sensitivity of EF in predicting optimum time for intervention. In this article we review patterns of LV myocardial deformation before and after correction of CAS and CoA in infants, children and adolescents, showing their important role in monitoring the course of LV dysfunction. A systematic search using PubMed was performed and suitable studies are presented on a narrative form. Normal EF and/or fractional shortening (FS), with subclinical myocardial dysfunction are reported in all studies before intervention. The short-term results, after intervention, were related to the type of procedure, with no improvement or further deterioration related to surgery but immediate improvement after balloon intervention. Long term follow-up showed further improvement but still subnormal function. Thus correction of CAS and CoA before irreversible LV dysfunction is vital, and requires longitudinal studies in order to identify the most accurate parameter for function prognostication. Until then, conventional echocardiographic parameters together with myocardial velocities and deformation parameters should continue to provide follow-up reproducible measures of ventricular function.
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Affiliation(s)
- Haki Jashari
- Department of Public Health and Clinical Medicine, Umeå University, Sweden
| | - Annika Rydberg
- Department of Clinical Sciences, Umeå University, Sweden
| | - Pranvera Ibrahimi
- Department of Public Health and Clinical Medicine, Umeå University, Sweden
| | - Gani Bajraktari
- Department of Public Health and Clinical Medicine, Umeå University, Sweden
| | - Michael Y Henein
- Department of Public Health and Clinical Medicine, Umeå University, Sweden.
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Bargiotas I, Redheuil A, Evin M, De Cesare A, Bollache E, Soulat G, Mousseaux E, Kachenoura N. Pixel-wise absolute pressures in the aortic arch from 3D MRI velocity data and carotid artery applanation tonometry. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:5105-8. [PMID: 25571141 DOI: 10.1109/embc.2014.6944773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A pixel-wise method for absolute and local aortic pressures estimation using 3D velocities in MRI and carotid pressure curves to set-up reference pressure values is presented. This method is based on the Navier-Stokes equation and a fast iterative algorithm. Its reliability was demonstrated: 1) in a synthetic phantom by comparison against simplified Bernoulli equation applied at peak velocities, and 2) in a healthy subject and a patient with aortic coarctation, in which absolute pressure distribution within the aortic arch was consistent with established physiopathological knowledge. Such local absolute aortic pressures may be useful in the understanding of hemodynamic changes secondary to cardiovascular alterations. Also, their addition to the already available indices of risk of aortic complications such as dilatation and dissection definition may prove of major clinical usefulness.
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