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Takahashi T, Saiki H, Sato A, Kuwata S, Nakano S, Sato Y, Akasaka M, Koizumi J, Senzaki H, Oyama K. Significance of End-Diastolic Forward Flow in Patients With Repaired Tetralogy of Fallot - Its Interaction With the Left Ventricular Property and End Organ Damage. Circ J 2023; 88:73-80. [PMID: 37766556 DOI: 10.1253/circj.cj-23-0147] [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] [Indexed: 09/29/2023]
Abstract
BACKGROUND Although right ventricular (RV) enlargement may affect RV diastolic dysfunction assessed by end-diastolic forward flow (EDFF) in patients with repaired tetralogy of Fallot (TOF), EDFF may also be modified by left ventricular (LV) hemodynamics. We hypothesized that EDFF is affected by LV hemodynamics, not limited to RV diastolic stiffening.Methods and Results: Among 145 consecutive patients with repaired TOF who underwent catheterization, hemodynamic properties in 47 with consistent EDFF and 75 without EDFF were analyzed. Compared with patients without EDFF, those with EDFF had a large RV volume with a high regurgitant fraction. Although cardiac index and central venous pressure (CVP) were similar, contrast injection augmented CVP and LV end-diastolic pressure (EDP) in patients with vs. those without EDFF, suggesting compromised diastolic reserve. In patients with EDFF, the velocity-time integral (VTI) of EDFF was positively correlated with LVEDP and systemic vascular resistance, in addition to RV EDP. EDFF-VTI was correlated with hepatic venous wedge pressure and markers of hepatic dysfunction. Subanalysis of the older (≥6 years) half of the study cohort revealed that EDFF was associated with bi-atrial enlargement independent of RV volume, highlighting the pronounced role of EDFF on the diastolic property in the aged cohort. CONCLUSIONS EDFF-VTI in patients with repaired TOF reflects RV diastolic dysfunction, affected by the left heart system. EDFF-VTI indicates blood stagnation, which may be attributed to end-organ damage.
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Affiliation(s)
- Takuya Takahashi
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
| | - Hirofumi Saiki
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
| | - Akira Sato
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
| | - Seiko Kuwata
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
| | - Satoshi Nakano
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
| | - Yumi Sato
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
| | - Manami Akasaka
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
| | | | - Hideaki Senzaki
- Pediatric Community Medicine, Nihon Institute of Medical Science
| | - Kotaro Oyama
- Division of Pediatric Cardiology, Department of Pediatrics, Iwate Medical University
- Pediatrics, Michinoku Medical Center on Disability and Health
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Vitarelli A, Miraldi F, Capotosto L, Galea N, Francone M, Marchitelli L, Viceconte N, Smaldone C, Mangieri E, Nguyen BL, Tanzilli G, Mancone M, Al-Kindy S. Comprehensive echocardiographic assessment of right ventricular function, pulmonary arterial elastic properties and ventricular-vascular coupling in adult patients with repaired tetralogy of fallot: clinical significance of 3D derived indices. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2023; 39:1631-1641. [PMID: 37405609 DOI: 10.1007/s10554-023-02857-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/21/2023] [Indexed: 07/06/2023]
Abstract
We aimed to comprehensively analyze by three-dimensional speckle-tracking echocardiography (3DSTE) and Doppler echocardiography right ventricular (RV) performance, pulmonary arterial (PA) elastic properties and right ventricular-pulmonary artery coupling (RVPAC) in patients with repaired tetralogy of Fallot (rTOF) and assess the feasibility and clinical utility of related echocardiographic indices. Twenty-four adult patients with rTOF and twenty-four controls were studied. RV end-diastolic volume(3D-RVEDV), RV end-systolic volume(3D-RVESV), RV ejection fraction(3D-RVEF), RV longitudinal strain(3D-RVLS) and RV area strain(3D-RVAS) were calculated by 3DSTE. RV end-systolic area (RVESA) was obtained by planimetry. Pulmonary regurgitation (PR) was assessed as trivial/mild or significant by cardiac magnetic resonance (CMR) and color-Doppler. Pulmonary artery (PA) elastic properties were determined using two-dimensional/Doppler echocardiography. RV systolic pressure (RVSP) was measured using standard Doppler methods. RVPAC was assessed using various 3DSTE-derived parameters (3DRVAS/RVSP, 3DRVLS/RVESA, 3DRVAS/RVESV). Overall, 3DRVEF and 3DRVAS were impaired in rTOF patients compared with controls. PA pulsatility and capacitance were reduced (p = 0.003) and PA elastance was higher (p = 0.0007) compared to controls. PA elastance had a positive correlation with 3DRVEDV (r = 0.64, p = 0.002) and 3DRVAS (r = 0.51, p = 0.02). By ROC (receiver operating characteristics) analysis, 3DRVAS/RVESV, 3DRVAS/RVSP and 3DRVLS/RVESA cutoff values of 0.31%/mmHg, 0.57%/mmHg and 0.86%/mmHg, respectively, had 91%, 88% and 88% sensitivity and 81%, 81% and 79% specificity in identifying exercise capacity impairment. In rTOF patients increased 3DSTE-derived RV volumes and impaired RV ejection fraction and strain are associated with reduced PA pulsatility and capacitance and increased PA elastance. 3DSTE-derived RVPAC parameters using different afterload-markers are accurate indices of exercise capacity.
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Affiliation(s)
- Antonio Vitarelli
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy.
- Cardiodiagnostica, via Lima 35, Rome, 00198, Italy.
| | - Fabio Miraldi
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Lidia Capotosto
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
- Cardiodiagnostica, via Lima 35, Rome, 00198, Italy
| | - Nicola Galea
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Marco Francone
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Livia Marchitelli
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Nicola Viceconte
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | | | - Enrico Mangieri
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Bich Lien Nguyen
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Gaetano Tanzilli
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Massimo Mancone
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
| | - Sulaiman Al-Kindy
- Depts of Cardiology, Cardiac Surgery and Radiology, Sapienza University, Rome, Italy
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Kim SJ, Li MH, Noh CI, Kim SH, Lee CH, Yoon JK. Impact of Pulmonary Arterial Elastance on Right Ventricular Mechanics and Exercise Capacity in Repaired Tetralogy of Fallot. Korean Circ J 2023; 53:406-417. [PMID: 37271746 DOI: 10.4070/kcj.2022.0228] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/25/2023] [Accepted: 03/01/2023] [Indexed: 06/06/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Pathophysiological changes of right ventricle (RV) after repair of tetralogy of Fallot (TOF) are coupled with a highly compliant low-pressure pulmonary artery (PA) system. This study aimed to determine whether pulmonary vascular function was associated with RV parameters and exercise capacity, and its impact on RV remodeling after pulmonary valve replacement. METHODS In a total of 48 patients over 18 years of age with repaired TOF, pulmonary arterial elastance (Ea), RV volume data, and RV-PA coupling ratio were calculated and analyzed in relation to exercise capacity. RESULTS Patients with a low Ea showed a more severe pulmonary regurgitation volume index, greater RV end-diastolic volume index, and greater effective RV stroke volume (p=0.039, p=0.013, and p=0.011, respectively). Patients with a high Ea had lower exercise capacity than those with a low Ea (peak oxygen consumption [peak VO2] rate: 25.8±7.7 vs. 34.3±5.5 mL/kg/min, respectively, p=0.003), while peak VO2 was inversely correlated with Ea and mean PA pressure (p=0.004 and p=0.004, respectively). In the univariate analysis, a higher preoperative RV end-diastolic volume index and RV end-systolic volume index, left ventricular end-systolic volume index, and higher RV-PA coupling ratio were risk factors for suboptimal outcomes. Preoperative RV volume and RV-PA coupling ratio reflecting the adaptive PA system response are important factors in optimal postoperative results. CONCLUSIONS We found that PA vascular dysfunction, presenting as elevated Ea in TOF, may contribute to exercise intolerance. However, Ea was inversely correlated with pulmonary regurgitation (PR) severity, which may prevent PR, RV dilatation, and left ventricular dilatation in the absence of significant pulmonary stenosis.
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Affiliation(s)
- Soo-Jin Kim
- Department of Pediatrics, Sejong General Hospital, Bucheon, Korea
| | - Mei Hua Li
- Department of Pediatrics, Sejong General Hospital, Bucheon, Korea
- The Sixth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chung Il Noh
- Department of Pediatrics, Sejong General Hospital, Bucheon, Korea.
| | - Seong-Ho Kim
- Department of Pediatrics, Sejong General Hospital, Bucheon, Korea
| | - Chang-Ha Lee
- Department of Thoracic and Cardiovascular Surgery, Sejong General Hospital, Bucheon, Korea
| | - Ja-Kyoung Yoon
- Department of Pediatrics, Sejong General Hospital, Bucheon, Korea
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Kim SH. Pulmonary Arterial Elastance and Right Ventricle-Pulmonary Artery Coupling in Postoperative Tetralogy of Fallot Patients. Korean Circ J 2023; 53:418-420. [PMID: 37271747 DOI: 10.4070/kcj.2023.0091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 04/26/2023] [Indexed: 06/06/2023] Open
Affiliation(s)
- Sung Hye Kim
- Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
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Cheng S, Li VWY, So EKF, Cheung YF. Right Ventricular-Pulmonary Arterial Coupling in Repaired Tetralogy of Fallot. Pediatr Cardiol 2022; 43:207-217. [PMID: 34463803 DOI: 10.1007/s00246-021-02719-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/25/2021] [Indexed: 10/20/2022]
Abstract
We assessed right ventricular (RV)-pulmonary arterial (PA) coupling in patients with repaired tetralogy of Fallot (TOF). Sixty patients (34 males) aged 18.6 ± 8.3 years at 14.8 ± 7.4 years after repair and 60 controls were studied. Two-dimensional, tissue Doppler and speckle tracking echocardiography and colour flow mapping were performed to assess RV end-systolic (ESA) and -diastolic areas, tricuspid valve Doppler and myocardial velocities, left ventricular (LV) and RV deformation and pulmonary (PR), tricuspid regurgitation (TR), respectively. The ratios of RV area change to ESA and peak tricuspid annular systolic (s) velocity to RV ESA indexed to body surface area reflected RV-PA coupling. Patients had greater RV areas and reduced tricuspid annular and myocardial velocities, LV and RV myocardial mechanics compared to controls (all p < 0.05). Both RV area change/ESA ratio and peak tricuspid annular s velocity/indexed RV ESA ratio were reduced in patients (all p < 0.001). Sixty-one and 100% of patients had, respectively, RV area change/ESA ratio and peak tricuspid annular s velocity/indexed RV ESA ratio < -2SD of controls. Indices of RV-PA coupling correlated positively with tricuspid myocardial velocities, LV and RV deformation and inversely with PR and TR (all p < 0.05). Multivariate analysis showed RV systolic strain rate, PR and TR as independent predictors of both RV-PA coupling indices, whilst age, gender and LV systolic strain were also predictors of peak tricuspid annular s velocity/indexed RV ESA ratio (all p < 0.05). In conclusion, RV-PA coupling is impaired and is associated with RV and LV mechanics and severity of PR and TR in patients with repaired TOF.
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Affiliation(s)
- Sabine Cheng
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, People's Republic of China
| | - Vivian Wing-Yi Li
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, People's Republic of China
| | - Edwina Kam-Fung So
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, People's Republic of China
| | - Yiu-Fai Cheung
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, People's Republic of China.
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Muneuchi J, Ezaki H, Sugitani Y, Watanabe M. Comprehensive assessments of pulmonary circulation in children with pulmonary hypertension associated with congenital heart disease. Front Pediatr 2022; 10:1011631. [PMID: 36313863 PMCID: PMC9614099 DOI: 10.3389/fped.2022.1011631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Pulmonary hypertension associated with congenital heart disease (CHD-PH) encompasses different conditions confounded by the left-to-right shunt, left heart obstruction, ventricular dysfunction, hypoxia due to airway obstruction, dysplasia/hypoplasia of the pulmonary vasculature, pulmonary vascular obstructive disease, and genetic variations of vasoactive mediators. Pulmonary input impedance consists of the pulmonary vascular resistance (Rp) and capacitance (Cp). Rp is calculated as the transpulmonary pressure divided by the pulmonary cardiac output, whereas Cp is calculated as the pulmonary stroke volume divided by the pulmonary arterial pulse pressure. The plots of Rp and Cp demonstrate a unique hyperbolic relationship, namely, the resistor-capacitor coupling curve, which represents the pulmonary vascular condition. The product of Rp and Cp is the exponential pressure decay, which refers to the time constant. Alterations in Cp are more considerable in CHD patients at an early stage of developing pulmonary hypertension or with excessive pulmonary blood flow due to a left-to-right shunt. The importance of Cp has gained attention because recent reports have shown that low Cp potentially reflects poor prognosis in patients with CHD-PH and idiopathic pulmonary hypertension. It is also known that Cp levels decrease in specific populations, such as preterm infants and trisomy 21. Therefore, both Rp and Cp should be individually evaluated in the management of children with CHD-PH who have different disease conditions.
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Affiliation(s)
- Jun Muneuchi
- Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization
| | - Hiroki Ezaki
- Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization
| | - Yuichiro Sugitani
- Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization
| | - Mamie Watanabe
- Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization
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Buddhe S, Jani V, Sarikouch S, Gaur L, Schuster A, Beerbaum P, Lewin M, Kutty S. Differences in right ventricular-pulmonary vascular coupling and clinical indices between repaired standard tetralogy of Fallot and repaired tetralogy of Fallot with pulmonary atresia. Diagn Interv Imaging 2020; 102:85-91. [PMID: 32513548 DOI: 10.1016/j.diii.2020.05.008] [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: 02/20/2020] [Revised: 05/20/2020] [Accepted: 05/23/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The purpose of this study was to compare ventricular vascular coupling ratio (VVCR) between patients with repaired standard tetralogy of Fallot (TOF) and those with repaired TOF-pulmonary atresia (TOF-PA) using cardiovascular magnetic resonance (CMR). MATERIALS AND METHODS Patients with repaired TOF aged>6 years were prospectively enrolled for same day CMR, echocardiography, and exercise stress test following a standardized protocol. Sanz's method was used to calculate VVCR as right ventricle (RV) end-systolic volume/pulmonary artery stroke volume. Regression analysis was used to examine associations with exercise test parameters, New York Heart Association (NYHA) class, RV size and biventricular systolic function. RESULTS A total of 248 subjects were included; of these 222 had repaired TOF (group I, 129 males; mean age, 15.9±4.7 [SD] years [range: 8-29 years]) and 26 had repaired TOF-PA (group II, 14 males; mean age, 17.0±6.3 [SD] years [range: 8-29 years]). Mean VVCR for all subjects was 1.54±0.64 [SD] (range: 0.43-3.80). Mean VVCR was significantly greater in the TOF-PA group (1.81±0.75 [SD]; range: 0.78-3.20) than in the standard TOF group (1.51±0.72 [SD]; range: 0.43-3.80) (P=0.03). VVCR was greater in the 68 NYHA class II subjects (1.79±0.66 [SD]; range: 0.75-3.26) compared to the 179 NYHA class I subjects (1.46±0.61 [SD]; range: 0.43-3.80) (P<0.001). CONCLUSION Non-invasive determination of VVCR using CMR is feasible in children and adolescents. VVCR showed association with NYHA class, and was worse in subjects with repaired TOF-PA compared to those with repaired standard TOF. VVCR shows promise as an indicator of pulmonary artery compliance and cardiovascular performance in this cohort.
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Affiliation(s)
- S Buddhe
- Division of Pediatric Cardiology, Department of Pediatrics, Seattle Children's Hospital, 91805 Seattle, WA, USA
| | - V Jani
- Blalock Taussig Thomas Heart Center, The Johns Hopkins Hospital and School of Medicine, 1800 Orleans St, 21287 Baltimore, MD, USA
| | - S Sarikouch
- Department of Heart- Thoracic- Transplantation- and Vascular Surgery, Hannover Medical School, 30625 Hannover, Germany
| | - L Gaur
- Blalock Taussig Thomas Heart Center, The Johns Hopkins Hospital and School of Medicine, 1800 Orleans St, 21287 Baltimore, MD, USA
| | - A Schuster
- Department of Cardiology and Pneumology, University of Goettingen School of Medicine, 37075 Göttingen, Germany
| | - P Beerbaum
- Department of Pediatric Cardiology and Pediatric Intensive Care, Hannover Medical School, Hannover Medical School, Hannover, Germany
| | - M Lewin
- Division of Pediatric Cardiology, Department of Pediatrics, Seattle Children's Hospital, 91805 Seattle, WA, USA
| | - S Kutty
- Blalock Taussig Thomas Heart Center, The Johns Hopkins Hospital and School of Medicine, 1800 Orleans St, 21287 Baltimore, MD, USA.
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Hock J, Häcker AL, Reiner B, Oberhoffer R, Hager A, Ewert P, Müller J. Functional outcome in contemporary children and young adults with tetralogy of Fallot after repair. Arch Dis Child 2019; 104:129-133. [PMID: 29970581 DOI: 10.1136/archdischild-2017-314733] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 05/30/2018] [Accepted: 06/11/2018] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Functional outcome measures are of growing importance in the aftercare of patients with congenital heart disease. This study addresses the functional status with regard to exercise capacity, health-related physical fitness (HRPF) and arterial stiffness in a recent cohort of children, adolescents and young adults with tetralogy of Fallot (ToF) after repair. DESIGN Single-centre, uncontrolled and prospective cohort study. SETTING Outpatient department of the German Heart Centre Munich; July 2014-January 2018. PATIENTS One hundred and six patients with ToF after repair (13.5±3.7 years, 40 females) were included. Data were compared with a recent cohort of healthy controls (HCs) (n=1700, 12.8±2.6 years, 833 females). MAIN OUTCOME MEASURES Patients underwent a symptom-limited cardiopulmonary exercise test, performed an HRPF test (FitnessGram) and had an assessment of their arterial stiffness (Mobil-O-Graph). RESULTS Compared with HC, patients with ToF showed lower predicted [Formula: see text]O2 peak (ToF: 80.4% ± 16.8% vs HC: 102.6% ± 18.1%, p<0.001), impaired ventilatory efficiency (ToF: 29.6 ± 3.6 vs HC: 27.4 ± 2.9, p<0.001), chronotropic incompetence (ToF: 167 ± 17 bpm vs HC: 190 ± 17 bpm, p<0.001) and reduced HRPF (ToF z-score: -0.65 ± 0.87 vs HC z-score: 0.03 ± 0.65, p<0.001). Surrogates of arterial stiffness, central and peripheral systolic blood pressure, did not differ between the two groups. CONCLUSIONS Contemporary children, adolescents and young adults with ToF still have functional limitations. How impaired HRPF and limited exercise capacity interact and how they can be modified needs to be evaluated in further intervention studies.
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Affiliation(s)
- Julia Hock
- Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München, Munchen, Germany
| | - Anna-Luisa Häcker
- Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München, Munchen, Germany.,Institute of Preventive Pediatrics, Technische Universität München, Munich, Germany
| | - Barbara Reiner
- Institute of Preventive Pediatrics, Technische Universität München, Munich, Germany
| | - Renate Oberhoffer
- Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München, Munchen, Germany.,Institute of Preventive Pediatrics, Technische Universität München, Munich, Germany
| | - Alfred Hager
- Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München, Munchen, Germany
| | - Peter Ewert
- Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München, Munchen, Germany
| | - Jan Müller
- Institute of Preventive Pediatrics, Technische Universität München, Munich, Germany
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Silva Vieira M, Arthurs CJ, Hussain T, Razavi R, Figueroa CA. Patient-specific modeling of right coronary circulation vulnerability post-liver transplant in Alagille's syndrome. PLoS One 2018; 13:e0205829. [PMID: 30408044 PMCID: PMC6224049 DOI: 10.1371/journal.pone.0205829] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 10/02/2018] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVES Cardiac output (CO) response to dobutamine can identify Alagille's syndrome (ALGS) patients at higher risk of cardiovascular complications during liver transplantation. We propose a novel patient-specific computational methodology to estimate the coronary autoregulatory responses during different hemodynamic conditions, including those experienced in a post-reperfusion syndrome (PRS), to aid cardiac risk-assessment. MATERIAL AND METHODS Data (pressure, flow, strain and ventricular volumes) from a 6-year-old ALGS patient undergoing catheter/dobutamine stress MRI (DSMRI) were used to parameterize a closed-loop coupled-multidomain (3D-0D) approach consisting of image-derived vascular models of pulmonary and systemic circulations and a series of 0D-lumped parameter networks (LPN) of the heart chambers and the distal arterial and venous circulations. A coronary microcirculation control model (CMCM) was designed to adjust the coronary resistance to match coronary blood flow (and thus oxygen delivery) with MVO2 requirements during Rest, Stress and a virtual PRS condition. RESULTS In all three simulated conditions, diastolic dominated right coronary artery (RCA) flow was observed, due to high right ventricle (RV) afterload. Despite a measured 45% increase in CO, impaired coronary flow reserve (CFR) (~1.4) at Stress was estimated by the CMCM. During modeled PRS, a marked vasodilatory response was insufficient to match RV myocardial oxygen requirements. Such exhaustion of the RCA autoregulatory response was not anticipated by the DSMRI study. CONCLUSION Impaired CFR undetected by DSMRI resulted in predicted myocardial ischemia in a computational model of PRS. This computational framework may identify ALGS patients at higher risk of complications during liver transplantation due to impaired coronary microvascular responses.
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Affiliation(s)
- Miguel Silva Vieira
- Division of Imaging Sciences & Biomedical Engineering, King's College London, London, United Kingdom
- * E-mail:
| | - Christopher J. Arthurs
- Division of Imaging Sciences & Biomedical Engineering, King's College London, London, United Kingdom
| | - Tarique Hussain
- Department of Pediatrics, University of Texas Southwestern Medical Center at Dallas, United States of America
- Pediatric Cardiology Department, Evelina Children’s Hospital London, Guy’s and St. Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Reza Razavi
- Division of Imaging Sciences & Biomedical Engineering, King's College London, London, United Kingdom
- Pediatric Cardiology Department, Evelina Children’s Hospital London, Guy’s and St. Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Carlos Alberto Figueroa
- Division of Imaging Sciences & Biomedical Engineering, King's College London, London, United Kingdom
- Departments of Surgery and Biomedical Engineering, University of Michigan, Michigan, United States of America
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D'Souza GA, Taylor MD, Banerjee RK. Evaluation of pulmonary artery wall properties in congenital heart disease patients using cardiac magnetic resonance. PROGRESS IN PEDIATRIC CARDIOLOGY 2017. [DOI: 10.1016/j.ppedcard.2017.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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11
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Medrek SK, Kloefkorn C, Nguyen DTM, Graviss EA, Frost AE, Safdar Z. Longitudinal change in pulmonary arterial capacitance as an indicator of prognosis and response to therapy and in pulmonary arterial hypertension. Pulm Circ 2017; 7:399-408. [PMID: 28597758 PMCID: PMC5467926 DOI: 10.1177/2045893217698715] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a chronic progressive disease that leads to right heart failure and death. Pulmonary arterial capacitance (PAC), defined as stroke volume divided by the pulmonary pulse pressure, has been identified as a prognostic factor in PAH. The impact of changes in PAC over time, however, is unclear. We evaluated changes in PAC over time to determine if such changes predicted transplant-free survival. A single-center retrospective study of consecutive group 1 PAH patients who had two or more right heart catheterizations (RHC) between January 2007 and June 2016 was undertaken. Hemodynamic data, clinical data, and outcomes were collected. Univariate and multivariate Cox proportional-hazards modelling to identify the contribution of risk factors for a composite outcome of death or lung transplantation was done. Mixed-effects logistic regression was performed to investigate the association between the change in PAC value over time and the composite outcome. A P value < 0.05 was considered significant. In total, 109 consecutive patients with a total of 300 RHC data were identified. PAC correlated inversely with functional status ( P < 0.001) and inversely with pulmonary vascular resistance ( P < 0.001). PAC values increased with the addition of new PAH-specific medications. Mixed effects logistic regression modeling using longitudinal data showed that a decrease in PAC over the study period was associated with increased mortality and transplantation (adjusted P = 0.039) over the study period. Change in PAC was a better predictor of outcome over the study period than baseline PAC or changes in other hemodynamic or clinical parameters. Decreases in PAC were predictive of increased mortality or transplantation in patients with group 1 PAH. There was a trend towards increased PAC in response to the addition of a PAH-specific medication. Our data support the use of PAC as a therapeutic target in PAH.
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Affiliation(s)
- Sarah K Medrek
- 1 Department of Pulmonary, Sleep, and Critical Care Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Chad Kloefkorn
- 1 Department of Pulmonary, Sleep, and Critical Care Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Duc T M Nguyen
- 2 Institute for Academic Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Edward A Graviss
- 2 Institute for Academic Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Adaani E Frost
- 2 Institute for Academic Medicine, Houston Methodist Hospital, Houston, TX, USA.,3 Weill Cornell College of Medicine, New York, NY, USA
| | - Zeenat Safdar
- 2 Institute for Academic Medicine, Houston Methodist Hospital, Houston, TX, USA.,3 Weill Cornell College of Medicine, New York, NY, USA
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Comparison of pulmonary arterial wall properties between a congenital heart disease patient and a normal subject using in vivo pressure–diameter measurements: A feasibility study. PROGRESS IN PEDIATRIC CARDIOLOGY 2016. [DOI: 10.1016/j.ppedcard.2015.12.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Seki M, Kuwata S, Kurishima C, Nakagawa R, Inuzuka R, Sugimoto M, Saiki H, Iwamoto Y, Ishido H, Masutani S, Senzaki H. Mechanism of aortic root dilation and cardiovascular function in tetralogy of Fallot. Pediatr Int 2016; 58:323-30. [PMID: 26809655 DOI: 10.1111/ped.12932] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 01/05/2016] [Accepted: 01/20/2016] [Indexed: 01/19/2023]
Abstract
The aortic root dilation in tetralogy of Fallot (TOF) is a long-term clinical problem, because a severely dilated aorta can lead to aortic regurgitation, dissection, or rupture, which can be fatal, necessitating surgical intervention. The details of the mechanism of aortic root dilation, however, are unclear. We have shown that aortic stiffness is increased in patients with repaired TOF, and may mirror the histological abnormality of elastic fiber disruption and matrix expansion. This aortic stiffness is related closely to the aortic dilation, indicating that aortic stiffness may be a predictor of outcome of aortic dilation. Furthermore, the aortic volume overload is a very important determinant of aortic diameter in TOF patients before corrective surgery. In addition, a chromosomal abnormality and the transforming growth factor-β signaling pathway, a major contributor to aortic dilation in Marfan syndrome, also affect this mechanism. In this way, aortic dilation in TOF patients is suggested to be a multifactorial disorder. The aim of this review was therefore to clarify the mechanism of aortic dilation in TOF, focusing on recent research findings. Studies linking histopathology, mechanical properties, molecular/cellular physiology, and clinical manifestations of aortic dilation facilitate appropriate treatment intervention and improvement of long-term prognosis of TOF.
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Affiliation(s)
- Mitsuru Seki
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan.,Department of Pediatrics, Gunma University School of Medicine, Maebashi, Gunma, Japan
| | - Seiko Kuwata
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan
| | - Clara Kurishima
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan.,Department of Pediatric Cardiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Ryo Nakagawa
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan.,Johns Hopkins Medical Institute, Baltimore, Maryland, USA
| | - Ryo Inuzuka
- Department of Pediatrics, University of Tokyo Hospital, Bunkyo, Tokyo, Japan
| | - Masaya Sugimoto
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Hirofumi Saiki
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan.,Mayo Clinic, Rochester, Minnesota, USA
| | - Yoichi Iwamoto
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan
| | - Hirotaka Ishido
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan
| | - Satoshi Masutani
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan
| | - Hideaki Senzaki
- Division of Pediatric Cardiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan
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Cakir H, Kestelli M, Yurekli I, Donmez K. Pulmonary arterial stiffness, compliance, and impedance. Ann Thorac Surg 2014; 97:1854. [PMID: 24792294 DOI: 10.1016/j.athoracsur.2013.10.101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 10/07/2013] [Accepted: 10/18/2013] [Indexed: 11/18/2022]
Affiliation(s)
- Habib Cakir
- Department of Cardiovascular Surgery, Katip Celebi University Izmir Atatürk Training and Research Hospital, Karabaglar 35360, Izmir, Turkey.
| | - Mert Kestelli
- Department of Cardiovascular Surgery, Katip Celebi University Izmir Atatürk Training and Research Hospital, Karabaglar 35360, Izmir, Turkey
| | - Ismail Yurekli
- Department of Cardiovascular Surgery, Katip Celebi University Izmir Atatürk Training and Research Hospital, Karabaglar 35360, Izmir, Turkey
| | - Koksal Donmez
- Department of Cardiovascular Surgery, Katip Celebi University Izmir Atatürk Training and Research Hospital, Karabaglar 35360, Izmir, Turkey
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15
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Reply: To PMID 23972390. Ann Thorac Surg 2014; 97:1854-5. [PMID: 24792293 DOI: 10.1016/j.athoracsur.2014.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 01/19/2014] [Accepted: 02/11/2014] [Indexed: 11/20/2022]
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16
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Invited commentary. Ann Thorac Surg 2013; 96:1441. [PMID: 24088455 DOI: 10.1016/j.athoracsur.2013.06.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 06/10/2013] [Accepted: 06/14/2013] [Indexed: 11/22/2022]
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