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Stephens EH, Egbe AC, Connolly HM, Vricella LA, Fuller S, Cameron D, Dearani JA. Aortic Dilation and Risk in Patients With Conotruncal Anomalies. Ann Thorac Surg 2024; 117:723-724. [PMID: 38043849 DOI: 10.1016/j.athoracsur.2023.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 11/05/2023] [Indexed: 12/05/2023]
Affiliation(s)
| | | | | | - Luca A Vricella
- Department of Pediatric Cardiac Surgery, Advocate Children's Hospital, Chicago, Illinois
| | - Stephanie Fuller
- Division of Cardiothoracic Surgery, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Duke Cameron
- Division of Cardiac Surgery, The Johns Hopkins Hospital, Baltimore, Maryland
| | - Joseph A Dearani
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minnesota.
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Saedi T, Siami R, Ghaffari AJ, Farmani D, Saedi S. Aortic dilation in adults with repaired tetralogy of Fallot: a single-centre study. Cardiol Young 2024:1-3. [PMID: 38410047 DOI: 10.1017/s1047951124000143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
BACKGROUND Tetralogy of Fallot is the most prevalent cyanotic CHD. With the advent of advanced surgical methods, the majority of tetralogy of Fallot patients reach adulthood. However, many need re-intervention for the residual anomalies including residual right ventricular outflow obstruction, pulmonary regurgitation, residual ventricular septal defects, and progressive aortic dilatation. Aortic dilation could lead to aortic regurgitation or dissection requiring surgical correction. In the current study, we aimed to determine the prevalence and outcomes of aortic root dilatation in adults with repaired tetralogy of Fallot in our tertiary care centre. METHODS In this retrospective study, 730 consecutive patients with history of repaired tetralogy of Fallot were included. Aortic diameter at the level of annulus, the sinus of Valsalva, sinotubular junction, and the ascending aorta as measured by echocardiography were evaluated. Prevalence of outcomes necessitating re-intervention including aortic regurgitation and dissection were recorded. RESULTS The mean size of annulus, sinus of Valsalva, sinotubular-junction, and ascending aorta in the latest available echocardiography of patients were 2.4+/-0.4 cm, 3.3+/-0.5 cm, 2.9+/-0.5cm, and 3.2+/-0.5cm, respectively. Prevalence of dilatation of sinus of Valsalva, dilation of Ascending aorta, sinotubular-junction, and aortic annulus was 28.7%, 21%, 8.3%, and 1 %, respectively. Five patients had severe aortic regurgitation (0.6%) and underwent surgical repair. One of these patients presented with acute aortic dissection. CONCLUSION Aortic dilation is common in tetralogy of Fallot but prevalence of redo surgery for aortic dilation, regurgitation, and adverse events including acute dissection is low.
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Affiliation(s)
| | - Rashide Siami
- Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Amir J Ghaffari
- Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Danial Farmani
- Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Sedigheh Saedi
- Congenital Heart Disease Research Center, Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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Miller S, Kozik D, Kurtz JD. Prevalence of Branch Pulmonary Artery Reintervention Following the Arterial Switch Operation. World J Pediatr Congenit Heart Surg 2024; 15:60-64. [PMID: 37609811 DOI: 10.1177/21501351231190921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
BACKGROUND The arterial switch operation (ASO) is the preferred surgical procedure used to correct dextro-transposition of the great arteries. A known complication of the ASO is branch pulmonary arteries (PAs) stenosis, which may require reintervention. Our goal is to determine the frequency of reintervention after the ASO and any factors associated with reintervention. METHODS This was a single center, retrospective study of infants who underwent the ASO from June 6, 2011 to February 21, 2021. The primary outcome was the prevalence of reintervention on the PAs following the ASO. RESULTS Sixty-eight infants were analyzed; 9 (13%) patients had 10 reinterventions. The mean age at time of the ASO was 6.52 ± 6.63 days; weight was 3.34 ± 0.57 kg. Those with a reintervention had a longer bypass time (P = .047). Mean age at reintervention was 0.80 ± 0.72 years; mean time from the ASO to reintervention was 0.799 ± 0.717 years. Six surgical procedures, two stent placements, and four balloon angioplasties were performed on a total of 13 branch PAs. There was no increased risk for reintervention on the right versus left PA. After reintervention, there was an improvement in the minimal PA diameter and echo gradient. There were no adverse events or mortality related to the reintervention. Mean follow-up was 6.17 ± 2.94 years. CONCLUSION The prevalence of branch PA reintervention following the ASO in our cohort was 13%. There is an association between longer cardiopulmonary bypass time and reintervention. After reintervention, there was an increase in PA diameter and a decrease in echo gradient.
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Affiliation(s)
- Samantha Miller
- School of Medicine, University of Louisville, Louisville, KY, USA
| | - Deborah Kozik
- Department of Cardiovascular and Thoracic Surgery, University of Louisville, Louisville, KY, USA
| | - Joshua D Kurtz
- Division of Pediatric Cardiology, Department of Pediatrics, University of Louisville, Louisville, KY, USA
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Avesani M, Jalal Z, Friedberg MK, Villemain O, Venet M, Di Salvo G, Thambo JB, Iriart X. Adverse remodelling in tetralogy of Fallot: From risk factors to imaging analysis and future perspectives. Hellenic J Cardiol 2024; 75:48-59. [PMID: 37495104 DOI: 10.1016/j.hjc.2023.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/29/2023] [Accepted: 07/21/2023] [Indexed: 07/28/2023] Open
Abstract
Although contemporary outcomes of initial surgical repair of tetralogy of Fallot (TOF) are excellent, the survival of adult patients remains significantly lower than that of the normal population due to the high incidence of heart failure, ventricular arrhythmias, and sudden cardiac death. The underlying mechanisms are only partially understood but involve an adverse biventricular response, so-called remodelling, to key stressors such as right ventricular (RV) pressure-and/or volume-overload, myocardial fibrosis, and electro-mechanical dyssynchrony. In this review, we explore risk factors and mechanisms of biventricular remodelling, from histological to electro-mechanical aspects, and the role of imaging in their assessment. We discuss unsolved challenges and future directions to better understand and treat the long-term sequelae of this complex congenital heart disease.
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Affiliation(s)
- Martina Avesani
- Paediatric and Congenital Cardiology Department, M3C National Reference Centre, Bordeaux University Hospital, Bordeaux, France; IHU Liryc, Electrophysiology and Heart Modelling Institute, Bordeaux University Foundation, Pessac, France; Paediatric Cardiology Unit, Department of Woman's and Child's Health, University-Hospital of Padova, University of Padua, Padua, Italy
| | - Zakaria Jalal
- Paediatric and Congenital Cardiology Department, M3C National Reference Centre, Bordeaux University Hospital, Bordeaux, France; IHU Liryc, Electrophysiology and Heart Modelling Institute, Bordeaux University Foundation, Pessac, France
| | - Mark K Friedberg
- Labatt Family Heart Center, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Olivier Villemain
- Labatt Family Heart Center, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Maeyls Venet
- Labatt Family Heart Center, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Giovanni Di Salvo
- Paediatric Cardiology Unit, Department of Woman's and Child's Health, University-Hospital of Padova, University of Padua, Padua, Italy
| | - Jean-Benoît Thambo
- Paediatric and Congenital Cardiology Department, M3C National Reference Centre, Bordeaux University Hospital, Bordeaux, France; IHU Liryc, Electrophysiology and Heart Modelling Institute, Bordeaux University Foundation, Pessac, France
| | - Xavier Iriart
- Paediatric and Congenital Cardiology Department, M3C National Reference Centre, Bordeaux University Hospital, Bordeaux, France; IHU Liryc, Electrophysiology and Heart Modelling Institute, Bordeaux University Foundation, Pessac, France.
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5
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Sengupta A, Lee JM, Gauvreau K, Colan SD, Del Nido PJ, Mayer JE, Nathan M. Natural history of aortic root dilatation and pathologic aortic regurgitation in tetralogy of Fallot and its morphological variants. J Thorac Cardiovasc Surg 2023; 166:1718-1728.e4. [PMID: 37164053 DOI: 10.1016/j.jtcvs.2023.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/28/2023] [Accepted: 04/12/2023] [Indexed: 05/12/2023]
Abstract
OBJECTIVE We sought to characterize the natural history of aortic root dilatation and aortic regurgitation in tetralogy of Fallot (TOF). METHODS A single-center review of patients who underwent TOF repair from January 1960 to December 2022 was performed. Morphology was categorized as TOF-pulmonary stenosis or TOF-variant (including TOF-pulmonary atresia and TOF-pulmonary atresia-major aortopulmonary collateral arteries). Echocardiographically determined diameters and derived z scores were measured at the annulus, sinus of Valsalva, and sinotubular junction immediately before TOF repair and throughout follow-up. Linear mixed-effects models assessed trends in dimensions over time. RESULTS Of 2205 patients who underwent primary repair of TOF at a median age of 4.9 months (interquartile range, 2.3-20.5 months) and survived to discharge, 1608 (72.9%) patients had TOF-pulmonary stenosis and 597 (27.1%) patients had TOF-variant. At a median postoperative follow-up of 14.4 years (interquartile range, 3.3-27.6 years; range, 0.1-62.6 years), 313 (14.2%) patients had mild or greater aortic regurgitation and 34 (1.5%) patients required an aortic valve or root intervention. The overall mean rates of annular, sinus of Valsalva, and sinotubular junction growth were 0.5 ± 0.2, 0.6 ± 0.3, and 0.7 ± 0.5 mm/year, respectively. Root z scores remained stable with time. At baseline, patients with TOF-variant had larger diameters and z scores at the annulus, sinus of Valsalva, and sinotubular junction, compared with patients with TOF-pulmonary stenosis (all P values < .05). Over time, patients with TOF-variant demonstrated relatively greater annular (P = .020), sinus of Valsalva (P < .001), and sinotubular junction (P < .001) dilatation. Patients with ≥75th percentile root growth rates had a higher incidence of mild or greater aortic regurgitation (P < .001), moderate or greater aortic regurgitation (P < .001), and aortic valve repair or replacement (P = .045). CONCLUSIONS Patients with TOF-variant are at comparatively greater risk of pathologic root dilatation over time, warranting closer longitudinal follow-up.
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Affiliation(s)
- Aditya Sengupta
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Mass
| | - Ji M Lee
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Mass
| | - Kimberlee Gauvreau
- Department of Cardiology, Boston Children's Hospital, Boston, Mass; Department of Biostatistics, Harvard School of Public Health, Boston, Mass
| | - Steven D Colan
- Department of Cardiology, Boston Children's Hospital, Boston, Mass; Department of Pediatrics, Harvard Medical School, Boston, Mass
| | - Pedro J Del Nido
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Mass; Department of Surgery, Harvard Medical School, Boston, Mass
| | - John E Mayer
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Mass; Department of Surgery, Harvard Medical School, Boston, Mass
| | - Meena Nathan
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Mass; Department of Surgery, Harvard Medical School, Boston, Mass.
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Schäfer M, Mawad W. Advanced Imaging Technologies for Assessing Tetralogy of Fallot: Insights Into Flow Dynamics. CJC PEDIATRIC AND CONGENITAL HEART DISEASE 2023; 2:380-392. [PMID: 38161669 PMCID: PMC10755841 DOI: 10.1016/j.cjcpc.2023.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/22/2023] [Indexed: 01/03/2024]
Abstract
Tetralogy of Fallot is the most common cyanotic congenital heart defect requiring surgical repair. Although surgical interventions have significantly reduced mortality, postrepair complications, such as pulmonary valve regurgitation and stenosis, may lead to adverse outcomes, including right ventricular dysfunction and increased risks of morbidity and mortality. This review explores the potential of advanced imaging technologies, including 4-dimensional-flow magnetic resonance imaging and high-frame-rate echocardiography, in providing valuable insights into blood flow dynamics and energy parameters. Quantitative measures, such as energy loss and vorticity, along with qualitative flow analysis, can provide additional insights into adverse haemodynamics at a potentially earlier and more reversible stage. Furthermore, personalized patient-specific information from these imaging modalities aids in guiding treatment decisions and monitoring postoperative interventions effectively. By characterizing flow patterns, these advanced imaging techniques hold great promise in improving the assessment and management of tetralogy of Fallot, providing tailored insights. However, further research and longitudinal studies are required to fully establish their clinical utility and potential impact on patient care.
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Affiliation(s)
- Michal Schäfer
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, Utah, USA
| | - Wadi Mawad
- Montreal Children’s Hospital, McGill University Health Centre, Montreal, Québec, Canada
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Dasgupta MN, Kaplinski MA, Reddy CD, Collins RT. Patterns of Aortic Dilation in Tetralogy of Fallot: An Analysis of 100 Fetal Echocardiograms Compared With Matched Controls. J Am Heart Assoc 2023; 12:e030083. [PMID: 37929767 PMCID: PMC10727408 DOI: 10.1161/jaha.123.030083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023]
Abstract
Background Although aortic dilation is common in tetralogy of Fallot (TOF), its progression and risk of dissection are not well understood. The mechanism of dilation is primarily attributed to increased flow in utero; an alternative is unequal septation of the truncus arteriosus resulting in a larger aorta and inherently hypoplastic pulmonary artery (PA). If the latter is true, we hypothesize the aorta to PA ratio in TOF is stable throughout gestation, and sums of great artery dimensions are similar to controls. Methods and Results We performed a single-center retrospective study of fetuses with TOF (2014-2020) and matched controls. We compared sums of diameters, circumferences, and cross-sectional areas of the aorta and PA and evaluated the aorta to PA ratio across gestation in 2 TOF subtypes: pulmonary stenosis and atresia (TOF-PA). There were 100 echocardiograms with TOF (36% TOF-PA) with median gestational age of 31 weeks (interquartile range 26.5-34.4) and median maternal age of 34 years (interquartile range 30-37). There were no differences in sums of great artery dimensions between TOF-pulmonary stenosis and controls. In TOF-PA, sums were significantly lower than controls (P values <0.01). The aorta to PA ratio was stable throughout gestation (Pearson's r=0.08 [95% CI, -0.12 to 0.27], -0.06 [95% CI, -0.25 to 0.14]). Conclusions The aorta in fetal TOF is large but grows proportionally throughout gestation, with sums of great artery dimensions similar to controls. TOF-PA appears distinct from TOF-pulmonary stenosis (with smaller sums), warranting further investigation. In conclusion, our findings suggest an intrinsic developmental mechanism contributes to aortic dilation in TOF.
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Affiliation(s)
- Minnie N. Dasgupta
- Department of Pediatrics (Division of Cardiology)Stanford University School of MedicinePalo AltoCAUSA
| | - Michelle A. Kaplinski
- Department of Pediatrics (Division of Cardiology)Stanford University School of MedicinePalo AltoCAUSA
| | - Charitha D. Reddy
- Department of Pediatrics (Division of Cardiology)Stanford University School of MedicinePalo AltoCAUSA
| | - R. Thomas Collins
- Department of Pediatrics (Division of Cardiology)University of Kentucky College of MedicineLexingtonKYUSA
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Lu L, Guo Q, Cui Z. Aorta Dilatation in Unrepaired Tetralogy of Fallot. Cureus 2023; 15:e49212. [PMID: 38143655 PMCID: PMC10739170 DOI: 10.7759/cureus.49212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2023] [Indexed: 12/26/2023] Open
Abstract
Background Aortic root dilation is an increasingly recognized feature in repaired tetralogy of Fallot (TOF) patients. However, the dilation at the aortic root and ascending aorta in unrepaired TOF is rarely studied. This study aims to confirm whether aortic dilation is a common feature in unrepaired TOF and investigate the factors attributed to aortic dilation. Methodology Patients with an echocardiographic diagnosis of TOF undergoing computed tomography angiography were retrospectively studied. Diameters and z scores of aortic annular (Ao1), aortic sinotubular junction (Ao2), ascending aorta (Ao3), and distal transverse aortic arch (Ao4) were measured. Preoperative body surface area (BSA), hemoglobin (Hb), hematocrit (HCT), arterial oxygen saturation (SaO2), and platelet (PLT) count were recorded. Results A total of 101 TOF patients aged 6.8 ± 9.5 years were included in this study, whose mean BSA (m2), Hb (g/L), HCT, SaO2 (%), and PLT (109/L) were 0.7 ± 0.4, 162.1 ± 3.8, 0.5 ± 0.1, 85.1 ± 9.3, and 238.1 ± 101.1, respectively. The mean z score of Ao1, Ao2, Ao3, and Ao4 were 10.3 ± 3.5, 4.7 ± 2.9, 4.0 ± 2.7, and 4.1 ± 2.4, respectively. Age and BSA were positively correlated with the z scores of Ao1 and Ao2. Preoperative Hb and HCT were positively correlated with the z scores of Ao1, Ao2, Ao3, and Ao4. Preoperative SaO2 and PLT were negatively correlated with the z scores of Ao1, Ao2, Ao3, and Ao4. Conclusions Aortic dilation is common in unrepaired TOF patients. The dilation of different levels of the aorta was correlated with age, BSA, preoperative Hb, HCT, SaO2, and PLT.
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Affiliation(s)
- Long Lu
- Department of Cardiovascular Surgery, Seventh Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, CHN
| | - Qingxu Guo
- Department of Cardiovascular Surgery, Seventh Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, CHN
| | - Zhentian Cui
- Department of Cardiovascular Surgery, Seventh Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, CHN
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Yumita Y, Niwa K. Beyond Aortic Diameter for the Management of Thoracic Aortic Aneurysm: Multidimensional Data for Multidisciplinary Discussion. JACC. ADVANCES 2023; 2:100636. [PMID: 38938344 PMCID: PMC11198487 DOI: 10.1016/j.jacadv.2023.100636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Affiliation(s)
- Yusuke Yumita
- Department of Cardiology, Cardiovascular Center, St Luke’s International Hospital, Chuo-ku, Tokyo, Japan
- Department of Cardiology, National Defence Medical College, Tokorozawa-shi, Saitama, Japan
| | - Koichiro Niwa
- Department of Cardiology, Cardiovascular Center, St Luke’s International Hospital, Chuo-ku, Tokyo, Japan
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Kim W, Kwak JG, Cho S, Kim WH. Ten-year follow-up of dilatation of aortic structures in Fallot-type anomalies. Pediatr Cardiol 2023; 44:1552-1559. [PMID: 37405457 DOI: 10.1007/s00246-023-03225-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/28/2023] [Indexed: 07/06/2023]
Abstract
OBJECTIVES Dilatation of the aortic root structures or ascending aorta is often observed in patients with Fallot-type anomalies. We aimed to determine the dilation rate of the aortic structures and investigate strategies for managing this phenomenon. METHODS In this retrospective study, we enrolled 66 out of 801 patients who underwent corrective surgery for Fallot-type anomalies (tetralogy of Fallot [TOF] and Fallot-type double outlet right ventricle [DORV]) between 2004 and 2020. These 66 patients had follow-up cardiac computed tomography (CT) angiography images taken at least 5 years after the initial CT study. We analyzed the diameters and aortic cross-sectional area/height ratio (AH) of the aortic annulus, sinus of Valsalva, sinotubular junction, and ascending aorta between the initial and follow-up CT scans. "Dilatation" was defined as a z-score over 2 for each aortic structure. RESULTS The median age at the initial and follow-up CT scans was 5.9 years (interquartile range [IQR]: 0.4 ~ 12.4) and 15.9 years (IQR 9.3 ~ 23.4), respectively. The median CT interval (from initial to latest CT) was 9.5 years (IQR 6.6 ~ 12.0). The sinus of Valsalva exhibited the most significant dilation (32.8 mm at follow-up CT) over the study period. The AH ratio increased significantly in all four aortic structures. The patient's age was significantly associated with higher AH in the follow-up CT. Aortic dilatation was present in 74.2% of patients at the initial CT and increased to 86.4% at the follow-up CT. CONCLUSION In Fallot-type anomalies, the AH ratio of aortic root structures significantly increased over an average period of approximately 9.5 years. The number of patients diagnosed with aortic dilatation also increased. Based on our observations in this study, these patients' group should be considered for more frequent follow-up examinations, as significant dilatation could occur in their mid-20 s.
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Affiliation(s)
- Woojung Kim
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Seoul National University Children's Hospital, Seoul National University, 101 Daehak-Ro, Chongno-Gu, Seoul, 03080, Republic of Korea
- Department of Thoracic and Cardiovascular Surgery, Korean Armed Forces Capital Hospital, Seongnam, Republic of Korea
| | - Jae Gun Kwak
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Seoul National University Children's Hospital, Seoul National University, 101 Daehak-Ro, Chongno-Gu, Seoul, 03080, Republic of Korea.
| | - Sungkyu Cho
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Seoul National University Children's Hospital, Seoul National University, 101 Daehak-Ro, Chongno-Gu, Seoul, 03080, Republic of Korea
| | - Woong-Han Kim
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Seoul National University Children's Hospital, Seoul National University, 101 Daehak-Ro, Chongno-Gu, Seoul, 03080, Republic of Korea
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Lyon SM, Ofner S, Cheng P, Powell S, Schloss D, Landis BJ, Cook S, Herrmann JL, Patel JK. Serial Magnetic Resonance Imaging for Aortic Dilation in Tetralogy of Fallot With Pulmonary Stenosis. Am J Cardiol 2023; 191:92-100. [PMID: 36669383 PMCID: PMC10337873 DOI: 10.1016/j.amjcard.2022.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/12/2022] [Accepted: 12/18/2022] [Indexed: 01/20/2023]
Abstract
Aortic dilation occurs in patients with repaired tetralogy of Fallot (TOF), but the rate of growth is incompletely characterized. The aim of this study was to assess the rates of growth of the aortic root and ascending aorta in a cohort of pediatric and adult patients with sequential magnetic resonance angiography Magnetic Resonance Imaging (MRI) data. Using serial MRI data from pediatric and adult patients with repaired TOF, we performed a retrospective analysis of the rates of growth and associations with growth of the aortic root and ascending aorta. Patients with pulmonary atresia or absent pulmonary valve were excluded. Between years 2005 to 2021, a total of 99 patients were enrolled. A follow-up MRI was performed an average of 5.9 ± 3.7 years from the initial study. For the cohort aged ≥16 years, the mean rate of change in diameter was 0.2 ± 0.5 mm/year at the ascending aorta and 0.2 ± 0.6 mm/year at the sinus of Valsalva. For the entire cohort, the mean change in cross-sectional area indexed to height at the ascending aorta was 7 ± 12 mm2/m/year and at the sinus of Valsalva was 10 ± 16 mm2/m/year. Younger age was associated with higher rates of growth of the sinus of Valsalva while the use of β blockers or angiotensin-converting enzyme inhibitors was associated with a slower rate of growth. There were no cases of aortic dissection in this cohort. We conclude that serial MRI demonstrates a slow rate of growth of the aorta in the TOF.
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Affiliation(s)
- Shannon M Lyon
- Division of Cardiology, Department of Pediatrics, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts; Department of Pediatrics, Harvard Medical School, Harvard University, Boston, Massachusetts.
| | - Susan Ofner
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine and Richard M. Fairbanks School of Public Health, Indianapolis, Indiana
| | - Phillip Cheng
- Department of Pediatrics, Nationwide Children's Hospital, Columbus, Ohio
| | - Shannon Powell
- Division of Cardiology, Department of Pediatrics, LSU Health Sciences Center, Children's Hospital New Orleans, New Orleans, Louisiana
| | - Daniel Schloss
- Department of Emergency Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Benjamin J Landis
- Division of Cardiology, Department of Pediatrics, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, Indiana
| | - Stephen Cook
- Krannert Institute of Cardiology and the IU Health Adult Congenital Heart Disease Program, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jeremy L Herrmann
- Division of Thoracic and Cardiovascular Surgery, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis Indiana
| | - Jyoti K Patel
- Division of Cardiology, Department of Pediatrics, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, Indiana
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12
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Vollbrecht TM, Luetkens JA. [Cardiac MRI of congenital heart disease : From fetus to adult]. RADIOLOGIE (HEIDELBERG, GERMANY) 2022; 62:933-940. [PMID: 35976404 DOI: 10.1007/s00117-022-01062-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Cardiac magnetic resonance imaging (MRI) is an important diagnostic tool for initial diagnostic workup and follow-up of patients with congenital heart disease (CHD) of different age groups. OBJECTIVES This review provides an overview of clinically applied MRI sequences for the assessment of CHD, highlights technical developments, and demonstrates key aspects of reporting in specific heart defects. MATERIALS AND METHODS Presentation of epidemiologic data, summary of studies on MRI sequences and their clinical application, and demonstration of clinical examples. RESULTS The broad spectrum of congenital heart defects requires the use of various sequences, which can be modified depending on patient age or treatment status. Cine imaging can be used to assess cardiac function and volumes, phase contrast flow measurements allow for the assessment of vessel hemodynamics, and various techniques of MR angiography allow visualization of the thoracic vessels with high spatiotemporal resolution. New developments allow high-resolution vascular imaging without the need for contrast agents, assessment of additional hemodynamic parameters, or fetal cardiac MRI. CONCLUSION Cardiac MRI can be employed in children as well as in adults with CHD. By using different sequences and considering the treatment status and surgery-related complications, the vast majority of clinical questions can be answered.
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Affiliation(s)
- Thomas M Vollbrecht
- Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
- Quantitative Imaging Lab Bonn (QILaB), Bonn, Deutschland
| | - Julian A Luetkens
- Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland.
- Quantitative Imaging Lab Bonn (QILaB), Bonn, Deutschland.
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Muneuchi J, Watanabe M, Sugitani Y, Doi H, Furuta T, Ezaki H, Kobayashi M, Ochiai Y. Being Overweight Is Related to Neoaortic Sinus Dilatation After Arterial Switch Operation. Tex Heart Inst J 2022; 49:487663. [DOI: 10.14503/thij-20-7508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Background
Neoaortic sinus dilatation is a late comorbidity after an arterial switch operation in patients with dextro-transposition of the great arteries. We aim to explore whether neoaortic sinus dilatation is related to overweight or obesity, as these affect aortic remodeling in such patients.
Methods
We measured neoaortic diameters including those for the annulus, sinus, sinotubular junction, and ascending aorta by echocardiography and studied the relationship between these diameters and body mass index in patients aged 15 years and older after an arterial switch operation.
Results
A total of 45 patients were studied. Median (interquartile range) age, body mass index, and systolic blood pressure at echocardiography were 20 (17–28) years, 21.2 (18.4–24.2) kg/m2, and 120 (112–127) mm Hg, respectively. Echocardiogram revealed the following median values (interquartile ranges): neoaortic annulus diameter, 22.2 (19.8–23.8) mm; sinus diameter, 34.6 (31.8–39.8) mm; sinotubular junction diameter, 27.5 (22.4–30.0) mm; and ascending aortic diameter, 20.4 (19.4–22.7) mm. The neoaortic sinus diameter was significantly correlated with body mass index (r = 0.41, P = .004) and was significantly larger in patients with concomitant ventricular septal defect (P < .001) and those who were over-weight (body mass index ≥25 kg/m2; P = .006).
Conclusion
Neoaortic sinus dilatation after an arterial switch operation is associated with being overweight during adolescence and young adulthood. It is important to prevent obesity in patients after an arterial switch operation and educate them on a healthy lifestyle.
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Affiliation(s)
- Jun Muneuchi
- 1 Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
| | - Mamie Watanabe
- 1 Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
| | - Yuichiro Sugitani
- 1 Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
| | - Hirohito Doi
- 1 Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
| | - Takashi Furuta
- 1 Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
| | - Hiroki Ezaki
- 1 Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
| | - Masaru Kobayashi
- 1 Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
| | - Yoshie Ochiai
- 2 Department of Cardiovascular Surgery, Kyushu Hospital, Japan Community Healthcare Organization, Kitakyushu, Japan
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14
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Ohuchi H, Kawata M, Uemura H, Akagi T, Yao A, Senzaki H, Kasahara S, Ichikawa H, Motoki H, Syoda M, Sugiyama H, Tsutsui H, Inai K, Suzuki T, Sakamoto K, Tatebe S, Ishizu T, Shiina Y, Tateno S, Miyazaki A, Toh N, Sakamoto I, Izumi C, Mizuno Y, Kato A, Sagawa K, Ochiai R, Ichida F, Kimura T, Matsuda H, Niwa K. JCS 2022 Guideline on Management and Re-Interventional Therapy in Patients With Congenital Heart Disease Long-Term After Initial Repair. Circ J 2022; 86:1591-1690. [DOI: 10.1253/circj.cj-22-0134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hideo Ohuchi
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center
| | - Masaaki Kawata
- Division of Pediatric and Congenital Cardiovascular Surgery, Jichi Children’s Medical Center Tochigi
| | - Hideki Uemura
- Congenital Heart Disease Center, Nara Medical University
| | - Teiji Akagi
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences
| | - Atsushi Yao
- Division for Health Service Promotion, University of Tokyo
| | - Hideaki Senzaki
- Department of Pediatrics, International University of Health and Welfare
| | - Shingo Kasahara
- Department of Cardiovascular Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences
| | - Hajime Ichikawa
- Department of Pediatric Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Hirohiko Motoki
- Department of Cardiovascular Medicine, Shinshu University School of Medicine
| | - Morio Syoda
- Department of Cardiology, Tokyo Women’s Medical University
| | - Hisashi Sugiyama
- Department of Pediatric Cardiology, Seirei Hamamatsu General Hospital
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences
| | - Kei Inai
- Department of Pediatric Cardiology and Adult Congenital Cardiology, Tokyo Women’s Medical University
| | - Takaaki Suzuki
- Department of Pediatric Cardiac Surgery, Saitama Medical University
| | | | - Syunsuke Tatebe
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Tomoko Ishizu
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba
| | - Yumi Shiina
- Cardiovascular Center, St. Luke’s International Hospital
| | - Shigeru Tateno
- Department of Pediatrics, Chiba Kaihin Municipal Hospital
| | - Aya Miyazaki
- Division of Congenital Heart Disease, Department of Transition Medicine, Shizuoka General Hospital
| | - Norihisa Toh
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences
| | - Ichiro Sakamoto
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences
| | - Chisato Izumi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Yoshiko Mizuno
- Faculty of Nursing, Tokyo University of Information Sciences
| | - Atsuko Kato
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center
| | - Koichi Sagawa
- Department of Pediatric Cardiology, Fukuoka Children’s Hospital
| | - Ryota Ochiai
- Department of Adult Nursing, Yokohama City University
| | - Fukiko Ichida
- Department of Pediatrics, International University of Health and Welfare
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
| | | | - Koichiro Niwa
- Department of Cardiology, St. Luke’s International Hospital
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15
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Zaidi AN. Tetralogy of Fallot: management of residual hemodynamic and electrophysiological abnormalities. Heart 2021; 108:1408-1414. [PMID: 34949687 DOI: 10.1136/heartjnl-2020-316668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Ali N Zaidi
- Mount Sinai Adult Congenital Heart Disease Center, Mount Sinai Heart, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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16
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Egbe AC, Miranda WR, Bonnichsen CR, Jain CC, Crestanello JA, Francois C, Katta RR, Iftikhar M, Goda AY, Andi K, Gandhi S, Connolly HM. Prevalence and risk of progressive aortic aneurysm and dissection in adults with conotruncal anomalies. Eur Heart J Cardiovasc Imaging 2021; 23:1663-1668. [PMID: 34939103 DOI: 10.1093/ehjci/jeab273] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/09/2021] [Indexed: 11/12/2022] Open
Abstract
AIMS Conotruncal anomalies share common embryogenic defects of the outflow tracts and great arteries, which result in a predisposition to aortic aneurysms. The purpose of this study was to describe the prevalence and risk of progressive aortic aneurysms in adults with conotruncal anomalies. METHODS AND RESULTS Retrospective study of adults with conotruncal anomalies that underwent cross-sectional imaging 2003-20. Aneurysm was defined as aortic root/mid-ascending aorta >2.1 mm/m2/>1.9 mm/m2, progressive aneurysm as increase by >2 mm, and severe aneurysm as dimension >50 mm. Of 2261 patients (38 ± 12 years; male 58%), 1167 (52%) had an aortic aneurysm, and 205 (14%) had a severe aortic aneurysm. Mean annual increase in aortic root/mid-ascending aorta was 0.3 ± 0.1 mm/0.2 ± 0.1 mm. The 3-, 5-, and 7-year cumulative incidence of the progressive aortic aneurysm was 4%, 7%, and 9%, respectively. The rate of aneurysm growth decreased with age, with no significant growth after age 40 years. There was an excellent correlation between aortic indices from cross-sectional imaging and echocardiography. Of 950 females, 184 had ≥1 pregnancy, and 81 (44%) of the 184 patients had aortic aneurysm prior to pregnancy. There was no aortic dissection or progression of the aortic aneurysm during pregnancy. Overall, there was no aortic dissection during 7984 patient-years of follow-up. CONCLUSIONS Aortic aneurysm was common in patients with conotruncal anomalies. However, the risk of progressive aneurysm or dissection was low. Collectively, these data suggest a benign natural history and perhaps a less frequent need for cross-sectional imaging. Further studies are required to determine the optimal timing for surgical intervention in this population.
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Affiliation(s)
- Alexander C Egbe
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - William R Miranda
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - Crystal R Bonnichsen
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - C Charles Jain
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - Juan A Crestanello
- Department of Cardiovascular Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905
| | - Christopher Francois
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Renuka R Katta
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - Momina Iftikhar
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - Ahmed Y Goda
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - Kartik Andi
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - Sangeetha Gandhi
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
| | - Heidi M Connolly
- Department of Cardiovascular MedicineMayo Clinic, Rochester, 200 First Street SW, MN, 55905, USA
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17
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Mohammed AFA, Frick M, Kerst G, Hatam N, Elgamal MAF, Essa KM, Hövels-Gürich HH, Vazquez-Jimenez JF, Zayat R. Proximal Aortic Dilatation and Pulmonary Valve Replacement in Patients with Repaired Tetralogy of Fallot: Is There a Relationship? A Cardiac Magnetic Resonance Imaging Study. J Clin Med 2021; 10:5296. [PMID: 34830578 PMCID: PMC8625773 DOI: 10.3390/jcm10225296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 11/17/2022] Open
Abstract
Aortopathy is a known complication whose incidence is growing within the population of tetralogy of Fallot (TOF) patients. Its pathology and relationship with other comorbidities remain unclear. This study was designed to determine the prevalence and predictors of proximal aortic dilatation after TOF repair. We retrospectively investigated all patients who underwent follow-up cardiac magnetic resonance imaging (CMR; at least 4 years after TOF repair) between March 2004 and December 2019. The dimensions at the ascending aorta (AAo) and sinus of Valsalva (SoV) levels were measured. Aortic dilatation was defined as an internal aortic diameter that was >2 standard deviation of the previously published normal values. We included 77 patients (mean age 28.9 ± 10.5 years, 41.5% female, mean follow-up of 24.5 ± 8.1 years). AAo and SoV were dilated in 19 (24.6%) and 43 (55.8%) patients, respectively. Patients with dilated AAo and SoV were older during the corrective surgery (p < 0.001 and p = 0.004, respectively) and during CMR (p = 0.002 and 0.024, respectively) than patients without AAo and SoV dilatation. Patients of the dilated AAo group were more likely to have prior palliative shunt (p = 0.008), longer shunt duration (p = 0.005), and a higher degree of aortic valve regurgitation (AR) fraction (p < 0.001) and to undergo pulmonary (PVR) and/or aortic valve replacement (p < 0.001 and p = 0.013, respectively). PVR (p = 0.048, odds ratio = 6.413, and 95% CI = 1.013-40.619) and higher AR fraction (p = 0.031, odds ratio = 1.194, and 95% CI = 1.017-1.403) were independent predictors for AAo dilatation. Aortopathy is a common progressive complication that may require reintervention and lifelong follow-up. Our study shows that proximal aortic dilatation may be attributed to factors that increase the volume overload across the proximal aorta, including late corrective surgery and palliative shunt. We also found that PVR and higher AR fraction are independent predictors of AAo dilatation.
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Affiliation(s)
- Ahmed Farghal A. Mohammed
- Department of Pediatric Cardiac Surgery, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52074 Aachen, Germany
- Department of Cardiothoracic Surgery, Qena University Hospitals, Faculty of Medicine, South Valley University, Qena 83511, Egypt;
- Department of Thoracic and Cardiovascular Surgery, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52074 Aachen, Germany; (N.H.); (R.Z.)
| | - Michael Frick
- Department of Cardiology, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52070 Aachen, Germany;
| | - Gunter Kerst
- Department of Pediatric Cardiology, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52074 Aachen, Germany; (G.K.); (H.H.H.-G.)
| | - Nima Hatam
- Department of Thoracic and Cardiovascular Surgery, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52074 Aachen, Germany; (N.H.); (R.Z.)
| | | | - Karam M. Essa
- Department of Cardiothoracic Surgery, Qena University Hospitals, Faculty of Medicine, South Valley University, Qena 83511, Egypt;
| | - Hedwig H. Hövels-Gürich
- Department of Pediatric Cardiology, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52074 Aachen, Germany; (G.K.); (H.H.H.-G.)
| | - Jaime F. Vazquez-Jimenez
- Department of Pediatric Cardiac Surgery, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52074 Aachen, Germany
| | - Rashad Zayat
- Department of Thoracic and Cardiovascular Surgery, RWTH University Hospital Aachen, Faculty of Medicine, Pauwelsstr. 30, 52074 Aachen, Germany; (N.H.); (R.Z.)
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18
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Mitova E, Wittnich C. Cardiac Structures in Marine Animals Provide Insight on Potential Directions for Interventions for Pediatric Congenital Heart Defects. Am J Physiol Heart Circ Physiol 2021; 322:H1-H7. [PMID: 34652986 DOI: 10.1152/ajpheart.00451.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Despite recent advances in pediatric diagnosis and surgical intervention, mortality and morbidity continue to be a prevalent issue in both Tetralogy of Fallot (ToF) and Hypoplastic Left Heart Syndrome (HLHS). Therefore, novel approaches to studying both of these conditions is warranted. Investigating cardiac anatomical features of different species in the animal kingdom similar to the defects and complications present in ToF and HLHS (as well as others) could serve as a new avenue for improving the management of congenital heart diseases (CHD). This review reveals that although structures found in HLHS and ToF are pathological, similar structures are found in diving mammals and reptiles that are adaptive. Pathologic aortic dilation in CHD resembles the aortic bulb present in diving mammals, but the latter is more elastic and distensible compared to the former. The unrepaired HLHS heart resembles the univentricular heart of non-crocodilian reptiles. Right ventricle hypertrophy is pathological in HLHS and ToF, but adaptive in crocodilians and diving mammals. Lastly, the increased pulmonary resistance due to pulmonary stenosis in ToF is comparable to increased pulmonary resistance in crocodilians due to the presence of an active valve proximal to the pulmonary valve. Some of these anatomical structures could potentially be adapted for palliative surgery in children with HLHS or ToF. Moreover, further investigating the underlying molecular signals responsible for the adaptive tissue responses seen in other species may also be useful for developing novel strategies for preventing some of the complications that occur after surgical repair in both of these CHDs.
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Affiliation(s)
- Emilia Mitova
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Carin Wittnich
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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19
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de Rinaldis CP, Butensky A, Patel S, Edman S, Wasserman M, McGinn DE, Bailey A, Zackai EH, Crowley TB, McDonald-McGinn DM, Min J, Goldmuntz E. Aortic Root Dilation in Patients with 22q11.2 Deletion Syndrome Without Intracardiac Anomalies. Pediatr Cardiol 2021; 42:1594-1600. [PMID: 34128123 DOI: 10.1007/s00246-021-02645-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 05/19/2021] [Indexed: 11/30/2022]
Abstract
Aortic root dilation (ARD) has been reported in patients with 22q11.2 deletion syndrome (22q11.2DS) with and without congenital heart defects (CHDs). However, the long-term implications of isolated ARD in 22q11.2DS remain undefined. In this study, we measured aortic root size and estimated the probability of changing between normal aortic root size and ARD during follow up to understand the prevalence, longitudinal course, and clinical risk factors for ARD in patients with 22q11.2DS without intracardiac CHDs. Aortic root size was measured in 251 patients with 432 studies. Forty-one patients (16.3%) had ARD on at least one echocardiogram and the cohort sinus Z-score was increased on the last echocardiogram [mean (1.09, SD 1.24) and median (1.20, min - 1.90 and max 5.40)]. Transition probability analysis showed that 8.1% of patients developed ARD and 45.4% of patients with ARD reverted to normal at the next echocardiogram. The risk of ARD over time was significantly associated with male sex (OR 3.06, 95% CI 1.41-6.65; p = 0.004), but not with age or presence of an aortic arch anomaly. Compared to a sinus Z-score ≥ 2, initial Z-score < 2 was associated with 14.3 times lower risk of developing sinus Z-score ≥ 3 at follow up. Sinus Z-score overall decreased by age, and males had a higher Z-score than females (ß = 0.72, SE = 0.14, p < 0.001). Though only a few patients had a Z-score > 4, and patients with initial Z-scores < 2 seem unlikely to develop clinically significant disease, screening practices remain incompletely defined such that periodic evaluation appears warranted.
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Affiliation(s)
| | - Adam Butensky
- Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Shrey Patel
- Drexel University College of Medicine, Philadelphia, PA, USA
| | - Sharon Edman
- Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | | | - Alice Bailey
- Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Elaine H Zackai
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.,Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Donna M McDonald-McGinn
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.,Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jungwon Min
- Data Science and Biostatistics Unit, Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Elizabeth Goldmuntz
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.,Children's Hospital of Philadelphia, Philadelphia, PA, USA
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20
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Ichikawa N, Shiina Y, Kijima Y, Kodama H, Abe K, Komiyama N, Niwa K. Characteristics of the aortic root morphology in conotruncal anomaly of the congenital heart disease. J Cardiol 2021; 79:277-282. [PMID: 34600781 DOI: 10.1016/j.jjcc.2021.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 08/17/2021] [Accepted: 09/04/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Aortopathy is a well-known feature of conotruncal anomalies, but it remains unknown whether valve-sparing aortic root replacement, such as the David procedure, is feasible in young patients with severe aortic regurgitation. We assessed the aortic valve complex and aortic root morphology in patients with conotruncal anomalies using echocardiography. Furthermore, we evaluated the relevant factors associated with aortopathy in this population. METHODS A total of 172 adult patients with conotruncal anomalies were enrolled in this study. Dimensions of the aortic valve complex were measured at the level of the sinus of Valsalva (SV) and sinotubular junction (STJ). The geometric height (GH), effective height (EH), and coaptation length (CL) were also assessed to analyze the aortic valve complex in detail. RESULTS Sixteen of 172 patients were excluded due to poor imaging; 105 patients with tetralogy of Fallot, 24 with double outlet right ventricle, and 27 with transposition of the great arteries totaling 156 patients (32+/-11 years old) were included in the analysis. The patients were divided into four groups: Group 1 (98 patients) had no dilatation of SV or STJ; Group 2 (32 patients) had dilated SV and STJ; Group 3 (14 patients) had dilated SV; and Group 4 (12 patients) had dilated STJ. GH and EH in Group 2 were also highest among the four, whereas CL was not significantly shortened. Multivariate analysis revealed that male sex, age, and conduit repair were risk factors for aortopathy in this population. CONCLUSIONS Patients with dilated SV and STJ (Group 2) were the most common among the patients with aortopathy (Groups 2, 3, and 4). The aortic valve leaflets themselves were enlarged, and the poor coaptation of the valve tips was compensated in spite of aortic root dilatation, which plays an important role in preventing severe aortic regurgitation in this population. Overall, valve-sparing aortic valve replacement is more feasible in the young populations than we expected.
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Affiliation(s)
- Naoko Ichikawa
- Clinical Laboratory, St. Luke's International Hospital, Tokyo, Japan
| | - Yumi Shiina
- Cardiovascular center, St. Luke's International Hospital, Tokyo, Japan.
| | - Yasufumi Kijima
- Cardiovascular center, St. Luke's International Hospital, Tokyo, Japan
| | - Hiroyuki Kodama
- Cardiovascular center, St. Luke's International Hospital, Tokyo, Japan
| | - Kohei Abe
- Department of Cardiovascular Surgery, St. Luke's International Hospital, Tokyo, Japan
| | - Nobuyuki Komiyama
- Cardiovascular center, St. Luke's International Hospital, Tokyo, Japan
| | - Koichiro Niwa
- Cardiovascular center, St. Luke's International Hospital, Tokyo, Japan
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21
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Chowdhury UK, Sankhyan LK, Avneesh S, Ray R, Kalaivani M, Hasija S, Chauhan A. Histologic Abnormalities of the Ascending Aorta: Effects on Aortic Remodeling after Intracardiac Repair of Tetralogy of Fallot. Tex Heart Inst J 2021; 47:86-95. [PMID: 32603461 DOI: 10.14503/thij-17-6279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We evaluated aortic tissue specimens from patients undergoing tetralogy of Fallot repair, to determine whether histologic abnormalities affect postsurgical aortic remodeling and other patient-related variables. Using light microscopy, we studied full-thickness aortic wall tissue operatively excised from 118 consecutive patients undergoing intracardiac repair of tetralogy of Fallot. We performed multiple linear regression analysis to identify independent predictors of change in aortic root dimensions, which we measured with echocardiography after repair and every 3 months thereafter. Thirty histologically normal specimens were used as controls. Elastic fiber fragmentation was found in 74.6% of the abnormal specimens, mucoid extracellular matrix accumulation in 49.2%, smooth muscle cell nuclei loss in 39%, smooth muscle cell disorganization in 28.8%, and medial fibrosis in 52.5%. At a mean follow-up time of 83.55 ± 42.08 months, mean aortic sinotubular diameter decreased from 28.79 ± 9.15 to 27.16 ± 8.52 mm/m2 (r =-0.43; P <0.001). Aortic sinotubular diameter decreased by 0.6 mm/m2 among females (β =0.6, SE=0.31; P =0.05) and by 0.88 mm/m2 in patients who had elastic fiber fragmentation or loss (β =0.88, SE=0.38; P =0.02). In bivariate and multiple linear regression analysis, duration of follow-up emerged as an independent predictor of aortic remodeling. The aortic histopathologic changes in our patients had an independent negative impact on the degree of aortic remodeling after surgery. We observed the most improved aortic sinotubular diameter in patients who had either histologically normal aortas or aortas with elastic fragmentation.
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Affiliation(s)
- Ujjwal Kumar Chowdhury
- Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Lakshmi Kumari Sankhyan
- Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Sheil Avneesh
- Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Ruma Ray
- Department of Cardiac Pathology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Mani Kalaivani
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Suruchi Hasija
- Department of Cardiac Anaesthesia, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Abhinavsingh Chauhan
- Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, New Delhi 110029, India
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22
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Siripornpitak S, Sriprachyakul A, Wongmetta S, Samankatiwat P, Mokarapong P, Wanitkun S. Follow-up aortic dilatation in patients with repaired tetralogy of Fallot using cardiovascular magnetic resonance. Eur J Radiol Open 2021; 8:100354. [PMID: 34026947 PMCID: PMC8134066 DOI: 10.1016/j.ejro.2021.100354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 05/01/2021] [Accepted: 05/08/2021] [Indexed: 11/17/2022] Open
Abstract
Purpose The study sought to determine the rate of aortic expansion and correlation with somatic growth in patients with repaired tetralogy of Fallot (rTOF), and predictors for determining the annual growth rate of the aorta (Ao-AGR). Methods Ninety-four rTOF patients (mean age 14.5 ± 4.4 years) with two cardiac magnetic resonance tests (CMR) (median duration 52 months, interquartile range, IQR 24-71) were analyzed for aortic diameter (AoD) at the annulus, the sinus of Valsalva (SoV), the sinotubular junction, and the ascending aorta (AAo), and compared with the normal limit AoD (NL-AoD) values. The median age-at-repair was 60 months (IQR 36-84). Ao-AGR and its index (Ao-AGRI) were derived from changes of the AoD and AoD-index, respectively, divided by the duration between the two studies. Three potential predictors (baseline AoD, sex, and age-at-repair) for the progression of Ao-AGR were analyzed. Results There was a significant larger AoD than NL-AoD (p < 0.001). Slow aortic growth was encountered in 78-85 % of patients. The Ao-AGR was slow, the median AGR ranged from 0.37 mm (IQR 0.13-0.72) at annulus to 0.56 mm (IQR 0.22-0.91) at AAo. There was a regression in Ao-AGRI, ranged from -1.41 mm (IQR -1.94, -0.87) at annulus to -2.36 mm (IQR -3.09, -1.63) at SoV. The three predictors were not correlated with severity of Ao-AGR. Conclusion Most adolescents with rTOF show significant aortic dilatation. There is a slow Ao-AGR with regression of Ao-AGRI, which may suggest that the rate of aortic growth is slower than the somatic growth. There are no significant predictors of the progression of Ao-AGR.
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Key Words
- AAo, ascending aorta
- AGR, annual growth rate
- Annual growth rate
- Annual growth rate index
- Ao-AGR, annual growth rate of the aorta
- AoD, aortic diameter
- AoR, aortic root
- Aortic diameter
- Aortic diameter index
- CMR, cardiac magnetic resonance
- Repaired tetralogy of Fallot
- STJ, sinotubular junction
- SoV, sinus of Valsalva
- Somatic growth
- TOF, tetralogy of Fallot
- cine bSSFP, cine balanced steady-state free precession
- rTOF, repaired tetralogy of Fallot
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Affiliation(s)
- Suvipaporn Siripornpitak
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
- Corresponding author.
| | - Apichaya Sriprachyakul
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
| | - Saruntorn Wongmetta
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
| | - Piya Samankatiwat
- Division of Thoracic Surgery, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
| | - Pirapat Mokarapong
- Cardiovascular and Thoracic Surgery Unit, Department of Surgery, Institute of Cardiovascular Diseases, Rajavithi Hospital, 2 Phayatai Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Suthep Wanitkun
- Division of Cardiology, Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
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Kim YY, Geisinger MT, Bhamare T, Wasserman M, Min J, Goldmuntz E. Natural history of the aortic root in Tetralogy of Fallot after repair. INTERNATIONAL JOURNAL OF CARDIOLOGY CONGENITAL HEART DISEASE 2021. [DOI: 10.1016/j.ijcchd.2021.100092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Niwa K. Aortopathy in patients with tetralogy of Fallot. INTERNATIONAL JOURNAL OF CARDIOLOGY CONGENITAL HEART DISEASE 2021. [DOI: 10.1016/j.ijcchd.2021.100111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Siripornpitak S, Sriprachyakul A, Wongmetta S, Samankatiwat P, Mokarapong P, Wanitkun S. Magnetic resonance imaging assessment of aortic dilatation and distensibility in 269 patients with repaired tetralogy of Fallot. Jpn J Radiol 2021; 39:774-782. [PMID: 33866518 DOI: 10.1007/s11604-021-01119-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/07/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE To determine the prevalence and degree of aortic dilatation (Adilatation), severity of aortic stiffness (Astiff), factors for Adilatation, and level of aortic root most sensitive to Astiff in patients with repaired tetralogy of Fallot (rTOF). MATERIALS AND METHODS 269 patients with rTOF (mean age 14.9 ± standard deviation 5.0 years) were analyzed for Adilatation at annulus, sinus, sinotubular junction, and ascending aorta (aAo). Aortic size index was graded as Z score < 2, 2-2.99, 3-4.99 and ≥ 5. Aortic distensibility (aAdis) was categorized according to 4 aortic levels and dilatation severity. Factors for Adilatation and level of aortic root most sensitive to Astiff were analyzed. RESULTS Sinus and aAo were the two most common sites of Adilatation, with a prevalence of 84% and 76%, respectively. A decreased aAdis was found (mean 5.38 ± 1.79 10-3 mmHg-1). aAdis only declined significantly at the sinus level (p = 0.009). Male sex, age-at-repair and aortic regurgitation were significant factors for Adilatation, with male sex as the strongest factor (odds ratio 2.94). There was a significant decline in aAdis at sinus level (p = 0.002) as Adilatation progressed. CONCLUSIONS We observed a high prevalence of Adilatation and Astiff in patients with rTOF. Male sex is the strongest factor for Adilatation. The sinus is the most sensitive area for determining a negative aAdis effect.
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Affiliation(s)
- Suvipaporn Siripornpitak
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand.
| | - Apichaya Sriprachyakul
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
| | - Saruntorn Wongmetta
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
| | - Piya Samankatiwat
- Division of Thoracic Surgery, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
| | - Pirapat Mokarapong
- Department of Surgery, Cardiovascular and Thoracic Surgery Unit, Institute of Cardiovascular Diseases, Rajvithi Hospital, 2 Phayatai Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Suthep Wanitkun
- Division of Cardiology, Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road, Phayatai, Ratchathewi, Bangkok, 10400, Thailand
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Abstract
The number of rTOF patients who survive into adulthood is steadily rising, with currently more than 90% reaching the third decade of life. However, rTOF patients are not cured, but rather have a lifelong increased risk for cardiac and non-cardiac complications. Heart failure is recognized as a significant complication. Its occurrence is strongly associated with adverse outcome. Unfortunately, conventional concepts of heart failure may not be directly applicable in this patient group. This article presents a review of the current knowledge on HF in rTOF patients, including incidence and prevalence, the most common mechanisms of heart failure, i.e., valvular pathologies, shunt lesions, left atrial hypertension, primary left heart and right heart failure, arrhythmias, and coronary artery disease. In addition, we will review information regarding extracardiac complications, risk factors for the development of heart failure, clinical impact and prognosis, and assessment possibilities, particularly of the right ventricle, as well as management strategies. We explore potential future concepts that may stimulate further research into this field.
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Aortic Vorticity, Helicity, and Aortopathy in Adult Patients with Tetralogy of Fallot: Pilot Study Using Four-Dimensional Flow Magnetic Resonance Images. Pediatr Cardiol 2021; 42:169-177. [PMID: 32978672 DOI: 10.1007/s00246-020-02466-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 09/16/2020] [Indexed: 10/23/2022]
Abstract
To employ quantitative analysis in the vorticity and helicity of the aortic root and the ascending aorta (AAo) in adults with tetralogy of Fallot (TOF), and to evaluate aortopathy and the relevant factors. Prospectively, 51 consecutive adults with TOF underwent 4 dimensional flow magnetic resonance imaging study for the assessment of vorticity and helicity of the aortic root and AAo, wall shear stress (WSS), viscous energy loss (EL), and the left ventricular outflow tract - aortic root (LVOT-Ao) angle. Patients were divided into the two groups: dilated aortic root and/or AAo (indexed diameter > 25 mm/cm2), Group A (15 patients); non-dilated aortic patients, Group B (36 patients). Ten age-matched controls were also enrolled. Group A showed more acute LVOT-Ao angle, higher incidence of aortic regurgitation, and initial anatomy of pulmonary atresia, compared to Group B (P < 0.0001, 0.02, 0.043). Group A showed greater clockwise vorticity at the level of Valsalva, AAo, and proximal arch, sagittal vorticity, AAo helicity, WSS, and EL than in Group B (P < 0.001, < 0.001, < 0.001, 0.045, 0.049, 0.02, 0.026). More acute LVOT-Ao angle correlated with the diameter of the aortic root and AAo, AAo vorticity, helicity, WSS, and EL (P = 0.004, 0.023, 0.045, 0.004, 0.0004, 0.017). On a univariate logistic analysis, more acute LVOT-Ao angle, AAo vorticity, AAo helicity, and maximum WSS were relevant factors of AAo dilatation (P = 0.02, 0.02, 0.045, 0.03, 0.046). On a multivariate logistic analysis, more acute LVOT-Ao angle was the most important factor of AAo dilatation (odds ratio 0.66, 95% CI 0.46-0.95, P < 0.024). TOF adults presenting dilated AAo have greater vorticity, helicity, and acute LVOT-Ao angle. Flow eccentricity and these flow hemodynamic parameters may be adjunctive predictions of aortopathy in this population.
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Stone ML, Schäfer M, von Alvensleben JC, Browne LP, Di Maria M, Campbell DN, Jaggers J, Mitchell MB. Increased Aortic Stiffness and Left Ventricular Dysfunction Exist After Truncus Arteriosus Repair. Ann Thorac Surg 2020; 112:809-815. [PMID: 33307069 DOI: 10.1016/j.athoracsur.2020.10.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND The purpose of this study was to determine whether aortic biomechanical properties are abnormal in children with repaired truncus arteriosus (TA) and to concurrently evaluate left ventricular (LV) function post-repair utilizing a novel platform for regional ventricular function. METHODS Cardiac magnetic resonance (CMR) studies from 26 children (mean age: 15.6 ± 7.2 years) post-TA repair were compared with 20 normal controls (mean age: 14.7 ± 2.6 years). Parameters of aortic stiffness (pulse wave velocity and relative area change) were measured. Flow hemodynamic metrics (aortic regurgitant fraction, peak systolic flow, and peak systolic velocity) and LV function (volumetric data, ejection fraction, regional wall strain) were also compared. RESULTS Ascending aortic pulse wave velocity was elevated and relative area change was decreased in TA patients compared with controls. Patients post-TA repair demonstrated elevated end diastolic and end systolic volumes in addition to decreased regional wall strain and increased mechanical dyssynchrony. LV functional changes were independent of aortic biomechanical properties. CONCLUSIONS Children with repaired TA have increased ascending aortic stiffness and altered LV function as measured by CMR imaging. Longitudinal studies and advanced CMR assessments are warranted to better determine the long-term potential for late aortic complications and to optimize both the medical and surgical management of these patients after TA repair.
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Affiliation(s)
- Matthew L Stone
- Division of Pediatric Cardiothoracic Surgery, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, Colorado.
| | - Michal Schäfer
- Department of Pediatric Cardiology, Children's Hospital Colorado, Aurora, Colorado
| | | | - Lorna P Browne
- Department of Pediatric Radiology, Children's Hospital Colorado, Aurora, Colorado
| | - Michael Di Maria
- Department of Pediatric Cardiology, Children's Hospital Colorado, Aurora, Colorado
| | - David N Campbell
- Division of Pediatric Cardiothoracic Surgery, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, Colorado
| | - James Jaggers
- Division of Pediatric Cardiothoracic Surgery, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, Colorado
| | - Max B Mitchell
- Division of Pediatric Cardiothoracic Surgery, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, Colorado
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Woudstra OI, Ghanam A, Vliegen HW, van Dijk APJ, van Melle JP, Groenink M, Meijboom FJ, Post MC, Mulder BJM, Bouma BJ, Bokma JP. The aortic root in repaired tetralogy of Fallot: Serial measurements and impact of losartan treatment. Int J Cardiol 2020; 326:88-91. [PMID: 33098953 DOI: 10.1016/j.ijcard.2020.10.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/01/2020] [Accepted: 10/07/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Aortic root dilatation is common in adults with repaired tetralogy of Fallot (rTOF) and might lead to aortic dissection. However, little is known on progression of aortic dilatation and the effect of pharmaceutical treatment. This study aims to determine factors associated with aortic growth and investigate effects of losartan. METHODS AND RESULTS We performed a prespecified analysis from the 1:1 randomized, double-blind REDEFINE trial. Aortic root diameters were measured at baseline and after 2.0 ± 0.3 years of follow-up using cardiovascular magnetic resonance (CMR) imaging. A total of 66 patients were included (68% men, age 40 ± 12 years, baseline aortic root 37 ± 6 mm, 32% aortic dilatation (>40 mm)). There was a trend towards slow aortic root growth (+0.6 ± 2.3 mm after two years, p = 0.06) (n = 60). LV stroke volume was the only factor associated with both a larger baseline aortic root (β: 0.09 mm/ml (95% C.I.:0.02, 0.15), p = 0.010) and with aortic growth during follow-up (β: 0.04 mm/ml (95% C.I.:0.005, 0.066), p = 0.024), after correction for age, sex, and body surface area using linear regression analysis. No treatment effect of losartan was found (p = 0.17). CONCLUSIONS Aortic root dilatation was present in about one-third of rTOF patients. A larger LV stroke volume was associated with both a larger baseline aortic root and ongoing growth. Our findings provide no arguments for lower aortic diameter thresholds for prophylactic surgery compared to the general population.
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Affiliation(s)
- O I Woudstra
- Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands; Department of Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - A Ghanam
- Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H W Vliegen
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
| | - A P J van Dijk
- Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - J P van Melle
- Department of Cardiology, Groningen University Medical Center, Groningen, the Netherlands
| | - M Groenink
- Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - F J Meijboom
- Department of Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - M C Post
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, the Netherlands
| | - B J M Mulder
- Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands; Netherlands Heart Institute, Utrecht, the Netherlands
| | - B J Bouma
- Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J P Bokma
- Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.
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30
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Sim HT, Kim JW, Kim SH, Park SJ, Jang SI, Lee CH. Correlation Between Total Repair Timing and Late Aortic Root Dilatation in Repaired Tetralogy of Fallot. Pediatr Cardiol 2020; 41:1501-1508. [PMID: 32642799 DOI: 10.1007/s00246-020-02394-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/11/2020] [Indexed: 11/30/2022]
Abstract
Aortic root dilatation is frequently encountered in adults with repaired Tetralogy of Fallot (TOF). The timing of total repair is known to have a significant correlation with late aortic root dilatation, but it is not well established. The objective of this study was to investigate the risk factors and correlation with timing of total repair for aortic root dilatation in adults with repaired TOF. An observational retrospective cohort study was conducted in 314 adults (≥ 18 years) with repaired TOF. Aortic root dilatation was defined when the absolute diameter of Sinus of Valsalva (SoV) was over 40 mm. SoV was measured by echocardiography in 110 patients, computed tomography angiography in 168 patients, and magnetic resonance image in 36 patients. Aortic root dilatation was observed in 65 patients (20.7%). Among them, 3 patients underwent Bentall operation due to acute aortic dissection or aortic root aneurysm. On multivariate logistic regression analysis, age at total repair was a significant risk factor for late aortic root dilatation (OR = 3.14; 95% CI 1.62-6.08; p = 0.001) and the cutoff value of age was 1.9 years. However, late aortic root dilatation was also observed in 10% of patients (10/91) who operated before 1 year of age. Late total repair was a significant risk factor for late aortic root dilatation in repaired TOF. However, early total repair did not always prevent late aortic root dilatation. These results suggest that congenital aortic pathology may also be a possible cause of aortic root dilatation along with longstanding hemodynamic stress.
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Affiliation(s)
- Hyung Tae Sim
- Department of Thoracic and Cardiovascular Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Republic of Korea
| | - Jeong-Won Kim
- Department of Thoracic and Cardiovascular Surgery, Sejong General Hospital, Sejong Heart Institute, 28, Hohyeon-ro 489 Beon-gil, Sosa-gu, Bucheon, Gyeonggi-do, 422-711, Republic of Korea
| | - Seong Ho Kim
- Department of Pediatric Cardiology, Sejong General Hospital, Bucheon, Republic of Korea
| | - Su-Jin Park
- Department of Pediatric Cardiology, Sejong General Hospital, Bucheon, Republic of Korea
| | - So-Ick Jang
- Department of Pediatric Cardiology, Sejong General Hospital, Bucheon, Republic of Korea
| | - Chang-Ha Lee
- Department of Thoracic and Cardiovascular Surgery, Sejong General Hospital, Sejong Heart Institute, 28, Hohyeon-ro 489 Beon-gil, Sosa-gu, Bucheon, Gyeonggi-do, 422-711, Republic of Korea.
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Progressive stiffening and relatively slow growth of the dilated ascending aorta in long-term Fontan survivors―Serial assessment for 15 years. Int J Cardiol 2020; 316:87-93. [DOI: 10.1016/j.ijcard.2020.04.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/11/2020] [Accepted: 04/24/2020] [Indexed: 11/20/2022]
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Effect of Stiffened and Dilated Ascending Aorta on Aerobic Exercise Capacity in Repaired Patients With Complex Congenital Heart Disease. Am J Cardiol 2020; 129:87-94. [PMID: 32593432 DOI: 10.1016/j.amjcard.2020.05.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 11/21/2022]
Abstract
Several studies have reported aortic dilation and increased stiffness of the ascending aorta in patients after repair of congenital heart disease (CHD), which may be a predominant cardiovascular risk. However, the clinical significance has not been described in detail. In this retrospective study, 175 repaired patients with complex CHD achieving biventricular circulation and age-matched 39 control subjects were reviewed (median age: 14.9 and 15.7 years, respectively). We measured the diameters of the ascending aorta and descending aorta from catheterization angiograms to yield Z-scores and stiffness indexes (β) using diameter fluctuations corresponding to pulsatile pressures. Clinical profile, peak oxygen uptake during the cardiopulmonary exercise test, and incidence of unscheduled hospitalization during follow-up was also reviewed. Compared with controls, patients with complex CHD, except for those with aortic coarctation, exhibited significant dilation and increased stiffness of the aortic root and ascending aorta, but not of the descending aorta. In this CHD population (n = 147, including 112 conotruncal anomalies), exercise capacities correlated independently with the diameter Z-score and stiffness index of the ascending aorta along with the history of repetitive thoracotomies, reduced forced vital capacity, and right ventricular hypertension. During a follow-up period (median 15.6 years), either dilation (Z-score >3.5) or increased stiffness (β >6.0) of the ascending aorta stratified morbidity, but no synergistic impact was detected. In conclusion, in repaired patients with complex CHD, a stiffened and dilated ascending aorta was frequently found, exerting significant adverse impacts on diminished exercise capacity and morbidity.
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Lee S, Kim YJ, Jung JW, Choi JY, Park HK, Shin YR, Choi BW. Evaluation of Flow Pattern in the Ascending Aorta in Patients with Repaired Tetralogy of Fallot Using Four-Dimensional Flow Magnetic Resonance Imaging. Korean J Radiol 2020; 20:1334-1341. [PMID: 31464112 PMCID: PMC6715567 DOI: 10.3348/kjr.2019.0096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 05/10/2019] [Indexed: 01/13/2023] Open
Abstract
Objective To evaluate flow pattern characteristics in the ascending aorta (AA) with four-dimensional (4D)-flow MRI and to determine predictors of aortic dilatation late after tetralogy of Fallot (TOF) repair. Materials and Methods This study included 44 patients with repaired TOF (25 males and 19 females; mean age, 28.9 ± 8.4 years) and 11 volunteers (10 males and 1 female, mean age, 33.7 ± 8.8 years) who had undergone 4D-flow MRI. The aortic diameters, velocity, wall shear stress (WSS), flow jet angle (FJA), and flow displacement (FD) at the level of the sinotubular junction (STJ) and mid-AA were compared between the repaired TOF and volunteer groups. The hemodynamic and clinical parameters were also compared between the aortic dilatation and non-dilatation subgroups in the repaired TOF group. Results The diameters of the sinus of Valsalva, STJ, and AA were significantly higher in the repaired TOF group than in the volunteer group (p = 0.002, p < 0.001, and p = 0.013, respectively). The FJAs at the STJ and AA were significantly greater in the repaired TOF group (p < 0.001 and p = 0.003, respectively), while velocities and WSS parameters were significantly lower. FD showed no statistically significant difference (p = 0.817). In subgroup analysis, age at TOF repair was significantly higher (p = 0.039) and FJA at the level of the AA significantly greater (p = 0.003) and mean WSS were significantly lower (p = 0.039) in the aortic dilatation group. FD were higher in the aortic dilatation group without statistical significance (p = 0.217). Conclusion Patients with repaired TOF have an increased FJA, dilated AA, and secondarily decreased WSS. In addition to known risk factors, flow eccentricity may affect aortic dilatation in patients with repaired TOF.
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Affiliation(s)
- Suji Lee
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Young Jin Kim
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
| | - Jo Won Jung
- Division of Pediatric Cardiology, Severance Hospital, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Young Choi
- Division of Pediatric Cardiology, Severance Hospital, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Han Ki Park
- Division of Cardiovascular Surgery, Severance Cardiovascular Hospital, Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Yu Rim Shin
- Division of Cardiovascular Surgery, Severance Cardiovascular Hospital, Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Byung Wook Choi
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Ganigara M, Sagiv E, Buddhe S, Bhat A, Chikkabyrappa SM. Tetralogy of Fallot With Pulmonary Atresia: Anatomy, Physiology, Imaging, and Perioperative Management. Semin Cardiothorac Vasc Anesth 2020; 25:208-217. [DOI: 10.1177/1089253220920480] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Tetralogy of Fallot (ToF) with pulmonary atresia (ToF-PA) is a complex congenital heart defect at the extreme end of the spectrum of ToF, with no antegrade flow into the pulmonary arteries. Patients differ with regard to the sources of pulmonary blood flow. In the milder spectrum of disease, there are confluent branch pulmonary arteries fed by ductus arteriosus. In more severe cases, however, the ductus arteriosus is absent, and the sole source of pulmonary blood flow is via major aortopulmonary collateral arteries (MAPCAs). The variability in the origin, size, number, and clinical course of these MAPCAs adds to the complexity of these patients. Currently, the goal of management is to establish pulmonary blood flow from the right ventricle (RV) with RV pressures that are ideally less than half of the systemic pressure to allow for closure of the ventricular septal defect. In the long term, patients with ToF-PA are at higher risk for reinterventions to address pulmonary arterial or RV-pulmonary artery conduit stenosis, progressive aortic root dilation and aortic insufficiency, and late mortality than those with less severe forms of ToF.
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Affiliation(s)
- Madhusudan Ganigara
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Eyal Sagiv
- Seattle Children’s Hospital, Seattle, WA, USA
- University of Washington, Seattle, WA, USA
| | - Sujatha Buddhe
- Seattle Children’s Hospital, Seattle, WA, USA
- University of Washington, Seattle, WA, USA
| | - Aarti Bhat
- Seattle Children’s Hospital, Seattle, WA, USA
- University of Washington, Seattle, WA, USA
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Abstract
Approximately 50 million adults worldwide have known congenital heart disease (CHD). Among the most common types of CHD defects in adults are atrial septal defects and ventricular septal defects followed by complex congenital heart lesions such as tetralogy of Fallot. Adults with CHDs are more likely to have hypertension, cerebral vascular disease, diabetes and chronic kidney disease than age-matched controls without CHD. Moreover, by the age of 50, adults with CHD are at a greater than 10% risk of experiencing cardiac dysrhythmias and approximately 4% experience sudden death. Consequently, adults with CHD require healthcare that is two- to four-times greater than adults without CHD. This paper discusses the diagnosis and treatment of adults with atrial septal defects, ventricular septal defects and tetralogy of Fallot.
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Affiliation(s)
- Robert J Henning
- School of Public Health, University of South Florida, Tampa, FL 33612, USA
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36
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Schäfer M, Barker AJ, Jaggers J, Morgan GJ, Stone ML, Truong U, Browne LP, Malone L, Ivy DD, Mitchell MB. Abnormal aortic flow conduction is associated with increased viscous energy loss in patients with repaired tetralogy of Fallot. Eur J Cardiothorac Surg 2020; 57:588-595. [PMID: 31535124 PMCID: PMC8204657 DOI: 10.1093/ejcts/ezz246] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/29/2019] [Accepted: 08/13/2019] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVES Aortopathy in tetralogy of Fallot (TOF) is characterized by increased aortic stiffness, dilation and reduced left ventricular (LV) function. Repair in infancy normalizes aortic dimensions in early childhood. Our prior work demonstrated that early TOF repair does not normalize aortic compliance and that abnormal ascending aortic flow patterns are prevalent. The objectives of this study were to: (i) determine whether proximal aortic flow-mediated viscous energy loss (EL') is elevated in patients with early TOF repair compared with healthy controls, and (ii) determine whether the degree of EL' is associated with LV function. METHODS Forty-one patients post TOF repair with normalized aortic size and 15 healthy controls underwent 4-dimenisonal-flow magnetic resonance imaging flow analysis and EL' assessment. Correlations between EL', aortic size, and LV function were assessed. RESULTS The TOF group had increased peak systolic thoracic aorta EL' (3.8 vs 1.5 mW, P = 0.004) and increased averaged EL' throughout the cardiac cycle (1.2 vs 0.5 mW, P = 0.003). Peak and mean systolic EL' in the ascending aorta was increased 2-fold in the TOF group compared with control (peak: 2.0 vs 0.9 mW, P = 0.007). Peak EL' measured along the entire thoracic aortic length correlated with LV ejection fraction (R = -0.45, P = 0.009), indexed LV end-systolic volume (R = -0.40, P = 0.010), and right ventricular end-systolic volume (R = -0.37, P = 0.034). CONCLUSIONS Patients with repaired TOF exhibit abnormal aortic flow associated with increased EL' in the thoracic aorta. The magnitude of EL' is associated with LV function and volumes. Increased aortic EL' in TOF is likely due to inherently abnormal LV outflow geometry and or right ventricular interaction. Reduced aortic flow efficiency in TOF increases cardiac work and may be an important factor in long-term cardiac performance.
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Affiliation(s)
- Michal Schäfer
- Division of Cardiology, Department of Pediatrics, Heart Institute, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Alex J Barker
- Department of Radiology, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
- Department of Bioengineering, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - James Jaggers
- Department of Bioengineering, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Gareth J Morgan
- Division of Cardiology, Department of Pediatrics, Heart Institute, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Matthew L Stone
- Department of Bioengineering, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Uyen Truong
- Division of Cardiology, Department of Pediatrics, Heart Institute, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Lorna P Browne
- Department of Radiology, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Ladonna Malone
- Department of Radiology, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - D Dunbar Ivy
- Division of Cardiology, Department of Pediatrics, Heart Institute, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Max B Mitchell
- Department of Surgery, Section of Congenital Heart Surgery, Heart Institute, Children’s Hospital Colorado, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
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Goldmuntz E. 22q11.2 deletion syndrome and congenital heart disease. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2020; 184:64-72. [PMID: 32049433 DOI: 10.1002/ajmg.c.31774] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/30/2020] [Accepted: 01/30/2020] [Indexed: 01/19/2023]
Abstract
The 22q11.2 deletion syndrome has an estimated prevalence of 1 in 4-6,000 livebirths. The phenotype varies widely; the most common features include: facial dysmorphia, hypocalcemia, palate and speech disorders, feeding and gastrointestinal disorders, immunodeficiency, recurrent infections, neurodevelopmental and psychiatric disorders, and congenital heart disease. Approximately 60-80% of patients have a cardiac malformation most commonly including a subset of conotruncal defects (tetralogy of Fallot, truncus arteriosus, interrupted aortic arch type B), conoventricular and/or atrial septal defects, and aortic arch anomalies. Cardiac patients with a 22q11.2 deletion do not generally experience higher mortality upon surgical intervention but suffer more peri-operative complications than their non-syndromic counterparts. New guidelines suggest screening for a 22q11.2 deletion in the patient with tetralogy of Fallot, truncus arteriosus, interrupted aortic arch type B, conoventricular septal defects as well as those with an isolated aortic arch anomaly. Early identification of a 22q11.2 deletion in the neonate or infant when other syndromic features may not be apparent allows for timely parental screening for reproductive counseling and anticipatory evaluation of cardiac and noncardiac features. Screening the at-risk child or adult allows for important age-specific clinical, neurodevelopmental, psychiatric, and reproductive issues to be addressed.
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Affiliation(s)
- Elizabeth Goldmuntz
- Division of Cardiology, Children's Hospital of Philadelphia, Department of Pediatrics, The Perelman School of Medicine, The University of Pennsylvania, Philadelphia, Pennsylvania
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Increased systolic vorticity in the left ventricular outflow tract is associated with abnormal aortic flow formations in Tetralogy of Fallot. Int J Cardiovasc Imaging 2020; 36:691-700. [DOI: 10.1007/s10554-019-01764-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/28/2019] [Indexed: 01/25/2023]
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Ordonez MV, Neumann S, Caputo M, Curtis S, Biglino G. Feasibility of Wave Intensity Analysis in Patients With Conotruncal Anomalies Before and After Pregnancy: New Physiological Insights? Front Pediatr 2020; 8:557407. [PMID: 33748034 PMCID: PMC7969497 DOI: 10.3389/fped.2020.557407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 12/16/2020] [Indexed: 11/30/2022] Open
Abstract
Background: Conotruncal anomalies (CTA) are associated with ongoing dilation of the aortic root, as well as increased aortic stiffness, which may relate to intrinsic properties of the aorta. Pregnancy hormones lead to hemodynamic changes and remodeling of the tunica media, resulting in the opposite effect, i.e., increasing distensibility. These changes normalize post-pregnancy in healthy women but have not been fully investigated in CTA patients. Methods: We examined aortic distensibility and ventriculo-arterial coupling before and after pregnancy using cardiovascular magnetic resonance (CMR)-derived wave intensity analysis (WIA). Pre- and post-pregnancy CMR data were retrospectively analyzed. Aortic diameters were measured before, during, and after pregnancy by cardiac ultrasound and before and after pregnancy by CMR. Phase contrast MR flow sequences were used for calculating wave speed (c) and intensity (WI). A matched analysis was performed comparing results before and after pregnancy. Results: Thirteen women (n = 5, transposition of the great arteries; n = 6, tetralogy of Fallot; n = 1, double outlet right ventricle, n = 1, truncus arteriosus) had 19 pregnancies. Median time between delivery and second CMR was 2.3 years (range: 1-6 years). The aortic diameter increased significantly after pregnancy in nine (n = 9) patients by a median of 4 ± 2.3 mm (range: 2-7.0 mm, p = 0.01). There was no difference in c pre-/post-pregnancy (p = 0.73), suggesting that increased compliance, typically observed during pregnancy, does not persist long term. A significant inverse relationship was observed between c and heart rate (HR) after pregnancy (p = 0.01, r = 0.73). There was no significant difference in cardiac output, aortic/pulmonary regurgitation, or WI peaks pre-/post-pregnancy. Conclusions: WIA is feasible in this population and could provide physiological insights in larger cohorts. Aortic distensibility and wave intensity did not change before and after pregnancy in CTA patients, despite an increase in diameter, suggesting that pregnancy did not adversely affect coupling in the long-term.
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Affiliation(s)
- Maria Victoria Ordonez
- Bristol Heart Institute, University Hospitals Bristol, Bristol, United Kingdom.,Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Sandra Neumann
- Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Massimo Caputo
- Bristol Heart Institute, University Hospitals Bristol, Bristol, United Kingdom.,Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Stephanie Curtis
- Bristol Heart Institute, University Hospitals Bristol, Bristol, United Kingdom
| | - Giovanni Biglino
- Bristol Heart Institute, University Hospitals Bristol, Bristol, United Kingdom.,Bristol Medical School, University of Bristol, Bristol, United Kingdom.,National Heart and Lung Institute, Imperial College London, London, United Kingdom
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40
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Eishi J, Miura T, Obase K, Eishi K. Total root remodelling by the Sleeve technique for aortic regurgitation in patients with repaired tetralogy of Fallot. Eur J Cardiothorac Surg 2019; 56:1196-1198. [PMID: 31056643 DOI: 10.1093/ejcts/ezz140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/26/2019] [Accepted: 04/09/2019] [Indexed: 11/14/2022] Open
Abstract
We report the case of a 15-year-old male patient who had developed aortic regurgitation primarily because of aortic annulus dilatation late after definitive repair of tetralogy of Fallot. Valsalva sinus dilatation was not remarkable enough for root replacement. For the purpose of total root remodelling, the Sleeve procedure was employed. This procedure not only reduced the root diameters but also augmented commissure heights. With concomitant non-coronary cusp plication, aortic regurgitation was effectively controlled. Thus, the Sleeve technique may be a preferable option for patients who develop aortic regurgitation, due to dilatation of the annulus or sinotubular junction without significant dilatation of the sinus of Valsalva, after congenital heart surgery.
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Affiliation(s)
- Junichiro Eishi
- Department of Cardiovascular Surgery, Nagasaki University Hospital, Nagasaki, Japan
| | - Takashi Miura
- Department of Cardiovascular Surgery, Nagasaki University Hospital, Nagasaki, Japan
| | - Kikuko Obase
- Department of Cardiovascular Surgery, Nagasaki University Hospital, Nagasaki, Japan
| | - Kiyoyuki Eishi
- Department of Cardiovascular Surgery, Nagasaki University Hospital, Nagasaki, Japan
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Vida VL, Triglia LT, Zanotto L, Zanotto L, Bertelli F, Padalino M, Sarris G, Protopapas E, Prospero C, Pizarro C, Cleuziou J, Myers PO, Prêtre R, Poncelet AJ, Meyns B, Van den Bossche K, Accord RE, Gil-Jaurena JM, Sakurai T, Stellin G. Late management of the aortic root after repair of tetralogy of Fallot: A European multicentre study. J Card Surg 2019; 35:40-47. [PMID: 31899837 DOI: 10.1111/jocs.14316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES We sought to determine the indications, type, and outcomes of reoperations on the aortic root after repair of tetralogy of Fallot (TOF). METHODS Eleven centers belonging to the European Congenital Heart Surgeons Association contributed to the data collection process. We included 36 patients who underwent surgical procedures on the aortic root, including surgery on the aortic valve and ascending aorta, between January 1975 and December 2017. Original diagnoses included TOF-pulmonary stenosis (n = 18) and TOF-pulmonary atresia (n = 18). The main indications for reoperation were aortic insufficiency (n = 19, 53%), aortic insufficiency and dilatation of the ascending aorta (n = 10, 28%), aortic root dilatation (n = 4, 11%), and ascending aorta dilatation (n = 3, 8%). RESULTS The median age at reoperation was 30.4 years (interquartile range 20.3-45.3 years), and mechanical aortic valve replacement was the most common procedure performed. Five patients died early after reoperation (14%), and larger ascending aorta diameters were associated with early mortality (P = .04). The median age at the last follow-up was 41.4 years (interquartile range 24.5-51.6 years). Late death occurred in five patients (5/31, 16%). Most survivors (15/26, 58%) were asymptomatic at the last clinical examination (New York Heart Association, NYHA class I). The remaining patients were NYHA class II (n = 7) and III (n = 3). The most common symptoms were fatigue (n = 5), dyspnea (n = 4), and exercise intolerance (n = 3). CONCLUSIONS Reoperations on the aortic root are infrequent but may become necessary late after TOF repair. The main indications for reoperation are aortic insufficiency, either isolated or associated with a dilatation of the ascending aorta. The surgical risk at reoperation was high and the presence of ascending aorta dilation is related to higher mortality.
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Affiliation(s)
- Vladimiro L Vida
- Paediatric and Congenital Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Laura Torlai Triglia
- Paediatric and Congenital Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Lorenza Zanotto
- Paediatric and Congenital Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Lucia Zanotto
- Department of Statistical Sciences, University of Padua, Padua, Italy
| | - Francesco Bertelli
- Paediatric and Congenital Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Massimo Padalino
- Paediatric and Congenital Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - George Sarris
- Athens Heart Surgery Institute and Department of Paediatric and Congenital Cardiac Surgery, Iaso Children's Hospital, Athens, Greece
| | - Eleftherios Protopapas
- Athens Heart Surgery Institute and Department of Paediatric and Congenital Cardiac Surgery, Iaso Children's Hospital, Athens, Greece
| | - Carol Prospero
- Nemours Cardiac Center, Alfred I. duPont Hospital for Children, Wilmington, Delaware
| | - Christian Pizarro
- Nemours Cardiac Center, Alfred I. duPont Hospital for Children, Wilmington, Delaware
| | - Julie Cleuziou
- Department of Congenital and Paediatric Cardiac Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
| | - Patrick O Myers
- Division of Cardiovascular Surgery, University of Geneva, Geneva, Switzerland
| | - René Prêtre
- Cardiac Surgery Department, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne University Hospital, Lausanne, Switzerland
| | - Alain J Poncelet
- Cardio-Vascular Department, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Bruxelles, Belgium
| | - Bart Meyns
- Cardiac Surgery - UZ Leuven, Leuven, Belgium
| | | | - Ryan E Accord
- Pediatric and Congenital Cardio-Thoracic Surgery Unit, University Medical Center Groningen, Groningen, Netherlands
| | | | - Takahisa Sakurai
- Department of Cardiovascular Surgery, Chukyo Hospital, Nagoya, Japan
| | - Giovanni Stellin
- Paediatric and Congenital Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
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van der Ven JP, van den Bosch E, Bogers AJ, Helbing WA. Current outcomes and treatment of tetralogy of Fallot. F1000Res 2019; 8:F1000 Faculty Rev-1530. [PMID: 31508203 PMCID: PMC6719677 DOI: 10.12688/f1000research.17174.1] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/21/2019] [Indexed: 01/08/2023] Open
Abstract
Tetralogy of Fallot (ToF) is the most common type of cyanotic congenital heart disease. Since the first surgical repair in 1954, treatment has continuously improved. The treatment strategies currently used in the treatment of ToF result in excellent long-term survival (30 year survival ranges from 68.5% to 90.5%). However, residual problems such as right ventricular outflow tract obstruction, pulmonary regurgitation, and (ventricular) arrhythmia are common and often require re-interventions. Right ventricular dysfunction can be seen following longstanding pulmonary regurgitation and/or stenosis. Performing pulmonary valve replacement or relief of pulmonary stenosis before irreversible right ventricular dysfunction occurs is important, but determining the optimal timing of pulmonary valve replacement is challenging for several reasons. The biological mechanisms underlying dysfunction of the right ventricle as seen in longstanding pulmonary regurgitation are poorly understood. Different methods of assessing the right ventricle are used to predict impending dysfunction. The atrioventricular, ventriculo-arterial and interventricular interactions of the right ventricle play an important role in right ventricle performance, but are not fully elucidated. In this review we present a brief overview of the history of ToF, describe the treatment strategies currently used, and outline the long-term survival, residual lesions, and re-interventions following repair. We discuss important remaining challenges and present the current state of the art regarding these challenges.
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Affiliation(s)
- Jelle P.G. van der Ven
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus MC-Sophia Children’s Hospital, Rotterdam, The Netherlands
- Netherlands Heart Institute, Utrecht, The Netherlands
- Department of Cardiothoracic Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Eva van den Bosch
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus MC-Sophia Children’s Hospital, Rotterdam, The Netherlands
- Netherlands Heart Institute, Utrecht, The Netherlands
| | - Ad J.C.C. Bogers
- Department of Cardiothoracic Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Willem A. Helbing
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus MC-Sophia Children’s Hospital, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Pediatric Cardiology, Radboud UMC - Amalia Children's Hospital, Nijmegen, The Netherlands
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Horiuchi C, Kamiya CA, Ohuchi H, Nakanishi A, Tsuritani M, Iwanaga N, Kurosaki K, Niwa K, Ikeda T, Yoshimatsu J. Impact of Pregnancy on Aortic Root in Women with Repaired Conotruncal Anomalies. Pediatr Cardiol 2019; 40:1134-1143. [PMID: 31087143 DOI: 10.1007/s00246-019-02112-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 04/27/2019] [Indexed: 10/26/2022]
Abstract
The effect of pregnancy on aortic root in women with repaired conotruncal anomalies (CTA) has not been clarified. This study examined aortic diameters during and after pregnancy in women with repaired CTA. A retrospective review of consecutive pregnant women with repaired CTA was performed for results of echocardiography from 1 year before pregnancy to 3 years after delivery and compared with findings from healthy pregnant volunteers. Participants comprised 42 subjects and 49 deliveries with repaired CTA (CTA group), and 47 healthy pregnant women (control group). Although no maternal aortic events were encountered, aortic diameters during pregnancy increased by 1.0 ± 2.2 mm (maximum, 7.0 mm) in the CTA group and 0.6 ± 1.3 mm (maximum, 3.4 mm) in the control group (p = 0.13). The CTA subgroup with increase in aortic diameter ≥ 3.5 mm during pregnancy showed no reversion to baseline diameter at follow-up > 6 months after delivery. Significant risk factors for increased aortic diameter and no reversal included pulmonary atresia, history of aortopulmonary shunt, older age at repair, and smaller left ventricular end-diastolic diameter pre-pregnancy. Women with repaired CTA tolerated pregnancy and delivery well. However, the aortic root progressively dilated during pregnancy and 1/4 of them, especially those with longstanding high aortic blood flow before repair, showed an increase of aortic root size of ≥ 3.5 mm during the peripartum period; this dilatation tended not to revert to the pre-pregnancy diameter. Therefore, serial measurement of the aortic root during pregnancy and after delivery is recommended in these women.
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Affiliation(s)
- Chinami Horiuchi
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, 565-8565, Osaka, Japan.
- Departments of Obstetrics and Gynecology, Mie University School of Medicine, Mie, Japan.
| | - Chizuko A Kamiya
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, 565-8565, Osaka, Japan
| | - Hideo Ohuchi
- Departments of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Atsushi Nakanishi
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, 565-8565, Osaka, Japan
| | - Mitsuhiro Tsuritani
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, 565-8565, Osaka, Japan
| | - Naoko Iwanaga
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, 565-8565, Osaka, Japan
| | - Kenichi Kurosaki
- Departments of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Koichiro Niwa
- Cardiovascular Center, St. Luke'S International Hospital, 9-1 Akashi, Chuo-ku, Tokyo, 104-8560, Japan
| | - Tomoaki Ikeda
- Departments of Obstetrics and Gynecology, Mie University School of Medicine, Mie, Japan
| | - Jun Yoshimatsu
- Departments of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, 565-8565, Osaka, Japan
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Agrawal H, Agarwal A, Eichler CM, Mahadevan VS. Percutaneous exclusion of a giant ascending aortic pseudoaneurysm. BMJ Case Rep 2019; 12:12/7/e231480. [PMID: 31302626 DOI: 10.1136/bcr-2019-231480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Harsh Agrawal
- Division of Cardiology, Department of Internal Medicine, UCSF, San Francisco, California, USA
| | - Anushree Agarwal
- Division of Cardiology, Department of Internal Medicine, UCSF, San Francisco, California, USA
| | | | - Vaikom S Mahadevan
- Division of Cardiology, Department of Internal Medicine, UCSF, San Francisco, California, USA
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45
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Tetralogy of Fallot, Bicuspid Valves and a Single Origin Coronary: Uncorrected and Asymptomatic. Heart Lung Circ 2019; 28:e26-e28. [DOI: 10.1016/j.hlc.2018.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 07/26/2018] [Indexed: 11/22/2022]
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46
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Ramaprabhu K, Idhrees M, Velayudhan B. Aortopathy in tetralogy of Fallot-a collective review. Indian J Thorac Cardiovasc Surg 2019; 35:575-578. [PMID: 33061054 DOI: 10.1007/s12055-019-00791-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 01/03/2019] [Accepted: 01/11/2019] [Indexed: 11/25/2022] Open
Abstract
The pathophysiology of aortic diseases in Tetralogy of Fallot has been analyzed in various studies, focusing on the histopathology of the aortic root, altered hemodynamics, and effect of early corrective repair on the incidence of aortic root dilatation. In this review article, we sought to integrate these studies for a better understanding of the natural history and practical implications of aortic root dilatation in Tetralogy of Fallot. This better equips us to appropriately implement potentially effective interventions.
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Affiliation(s)
- Krithika Ramaprabhu
- Department of Cardiothoracic Surgery, MIOT Hospitals, 4/112, Manapakkam, Chennai, Tamil Nadu 600089 India
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47
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Congenital Heart Disease Classification, Epidemiology, Diagnosis, Treatment, and Outcome. CONGENIT HEART DIS 2019. [DOI: 10.1007/978-3-319-78423-6_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Schäfer M, Browne LP, Morgan GJ, Barker AJ, Fonseca B, Ivy DD, Mitchell MB. Reduced proximal aortic compliance and elevated wall shear stress after early repair of tetralogy of Fallot. J Thorac Cardiovasc Surg 2018; 156:2239-2249. [DOI: 10.1016/j.jtcvs.2018.08.081] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/23/2018] [Accepted: 08/31/2018] [Indexed: 02/05/2023]
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49
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Grotenhuis HB, Dallaire F, Verpalen IM, van den Akker MJ, Mertens L, Friedberg MK. Aortic Root Dilatation and Aortic-Related Complications in Children After Tetralogy of Fallot Repair. Circ Cardiovasc Imaging 2018; 11:e007611. [DOI: 10.1161/circimaging.118.007611] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Heynric B. Grotenhuis
- Division of Cardiology, Department of Pediatrics, Wilhelmina Children’s Hospital, University of Utrecht, The Netherlands (H.B.G.)
| | - Frederic Dallaire
- Division of Cardiology, Department of Pediatrics, Centre Hospitalier de l’Université de Sherbrooke, University of Sherbrooke, QC, Canada (F.D.)
| | - Inez M. Verpalen
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, The Netherlands (I.M.V., M.J.E.v.d.A.)
| | - Michelle J.E. van den Akker
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, The Netherlands (I.M.V., M.J.E.v.d.A.)
| | - Luc Mertens
- The Labatt Family Heart Center, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, ON, Canada (L.M., M.K.F.)
| | - Mark K. Friedberg
- The Labatt Family Heart Center, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, ON, Canada (L.M., M.K.F.)
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50
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Abstract
A bicuspid aortic valve and/or coarctation of the aorta (COA) are often associated with dilatation of the ascending aorta and para-coarctation. Congenital heart diseases (CHD), such as truncus arteriosus, transposition of the great arteries (TGA), tetralogy of Fallot (TOF), hypoplastic left heart syndrome (HLHS), single ventricle with pulmonary stenosis/atresia and the Fontan procedure, are also associated with aortic root dilatation, aneurysm and rarely, dissection, which can be fatal and require aortic valve and root surgery. A significant subset of adults with complex CHD exhibit progressive dilatation of the aortic root even after repair due to aortic medial degeneration. Medial degeneration in the ascending aorta is prevalent among the above CHD. In Marfan syndrome, bicuspid aortic valve and COA, medial degeneration is more extensive and severe than in another complex CHD. Accordingly, the incidence of ascending aortic dilatation, dissection and rupture is higher in the former. This aortic medial degeneration in CHD may either be intrinsic or secondary to the increased volume overload of the aortic root due to right-to-left shunting, or a combination of both. The association of aortic pathophysiological abnormalities, aortic dilatation and aorto-ventricular interaction is clinically referred to as "aortopathy". The major purpose of medical treatment for aortopathy is to reduce the structural changes within the aortic wall and slow down the progression of aortic dilatation to reduce the risk of cardiovascular events. Several medications have been studied, including β-blockers, angiotensin II type I (AT1) receptor blockers (ARBs) and Ca-antagonists. However, the results, except for Marfan syndrome, are limited. In aortopathy, concomitant aortic valve and aortic root repair/replacement is required. The Bentall operation comprises root replacement with an aortic tube graft and mechanical valve, and has been widely applied. On the other hand, valve-sparing operations have been developed in order to preserve the aortic valve.
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Affiliation(s)
- Koichiro Niwa
- Department of Cardiology, Cardiovascular Center, St Luke's International Hospital, Tokyo, Japan
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