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Huang K, Ma Z, Khoo BL. Advancements in Bio-Integrated Flexible Electronics for Hemodynamic Monitoring in Cardiovascular Healthcare. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2025:e2415215. [PMID: 40278795 DOI: 10.1002/advs.202415215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2024] [Revised: 03/19/2025] [Indexed: 04/26/2025]
Abstract
Cardiovascular diseases (CVDs) remain the leading cause of global mortality, highlighting the urgent need for effective monitoring and prevention strategies. The rapid advancement of flexible sensing technology and the development of conformal sensors have attracted significant attention due to their potential for continuous, real-time assessment of cardiovascular health over extended periods. This review outlines recent advancements in bio-integrated flexible electronics designed for hemodynamic monitoring and broader CVD healthcare applications. It introduces key physiological indicators relevant to hemodynamics, including heart rate, blood pressure, blood flow velocity, and cardiac output. Next, it discusses flexible bio-integrated electronics engineering strategies, such as working principles and configuration designs. Various non-invasive and invasive bio-integrated devices for monitoring these hemodynamic indicators are then presented. Additionally, the review highlights the role of artificial intelligence algorithms and their practical applications in bio-integrated electronics for hemodynamic detection. Finally, it proposes future directions and addresses potential challenges in the field.
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Affiliation(s)
- Ke Huang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Hong Kong, 999077, China
| | - Zhiqiang Ma
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Hong Kong, 999077, China
| | - Bee Luan Khoo
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Hong Kong, 999077, China
- Department of Precision Diagnostic and Therapeutic Technology, City University of Hong Kong Shenzhen-Futian Research Institute, Shenzhen, 518057, China
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Diab SG, Rösner A, Døhlen G, Brun H, Grindheim G, Vithessonthi K, Friedberg MK, Holmstrøm H, Möller T. Systolic Function in the Fontan Circulation Is Exercise, but Not Preload, Recruitable. J Am Soc Echocardiogr 2025; 38:342-352. [PMID: 39549962 DOI: 10.1016/j.echo.2024.11.005] [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: 07/30/2024] [Revised: 11/04/2024] [Accepted: 11/06/2024] [Indexed: 11/18/2024]
Abstract
BACKGROUND Fontan circulatory failure with impaired systolic function is well documented; however, its mechanisms are not fully understood. The aim of this study was to explore myocardial functional reserve in adolescent patients with Fontan circulation in response to exercise or acute preload increase. METHODS The study included 32 patients (median age, 16.7 years; range, 15.4-17.9 years; 12 female patients) with Fontan circulation. Echocardiographic imaging was performed during exercise using a recumbent cycle ergometer and during heart catheterization with a rapid infusion of 0.9% saline infusion at 5 mL/kg body weight. Myocardial peak longitudinal strain (LS) was measured in a four-chamber view during specific time intervals before, during, and after exercise (LSstress) and volume load (LScath). During catheterization, central venous pressure and ventricular end-diastolic pressure were simultaneously recorded. A control group of 16 healthy individuals participated in the exercise test. RESULTS Mean LSstress was less negative for patients than for control subjects (P ≤ .001 at all stages); however, it significantly improved from -18.4 ± 5.5% at baseline to -22.0 ± 6.5% (P = .004) at maximal loading. LSstress at maximal loading did not correlate with changes in heart rate. During catheterization, mean LScath was -19.6 ± 6.0% at baseline and did not improve significantly at 1.00 to 2.00 minutes and at 4.00 to 6.00 minutes after saline infusion. In more than half of the patients, LScath worsened or improved by less than -2% after saline infusion. Worsening of LScath correlated with central venous pressure and ventricular end-diastolic pressure in all conditions (P ≤ .017). There was no difference in LSstress or LScath between the morphologic right ventricle and the morphologic left ventricle. CONCLUSIONS Patients with Fontan circulation demonstrate systolic myocardial functional reserve that can be recruited with exercise stress but not with an acute increase in preload.
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Affiliation(s)
- Simone Goa Diab
- Department of Paediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Assami Rösner
- Department of Cardiology, University Hospital of North Norway, Tromsø, Norway; Department of Clinical Medicine, UiT, The Arctic University of Norway, Tromsø, Norway
| | - Gaute Døhlen
- Department of Paediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Henrik Brun
- Department of Paediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Guro Grindheim
- Division of Emergencies and Critical Care, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Kanyalak Vithessonthi
- Department of Paediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway; Division of Pediatric Cardiology, Department of Pediatrics, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Mark K Friedberg
- The Labatt Family Heart Centre, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Henrik Holmstrøm
- Department of Paediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Thomas Möller
- Department of Paediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
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Maisat W, Yuki K. The Fontan Circulation in Pregnancy: Hemodynamic Challenges and Anesthetic Considerations. J Cardiothorac Vasc Anesth 2024; 38:2770-2782. [PMID: 39097487 PMCID: PMC11486577 DOI: 10.1053/j.jvca.2024.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/14/2024] [Accepted: 07/08/2024] [Indexed: 08/05/2024]
Abstract
Pregnancy in patients with Fontan physiology presents unique challenges due to altered cardiovascular dynamics inherent to both conditions. The Fontan procedure reroutes venous blood directly to the pulmonary arteries, bypassing the heart, and necessitating precise regulation of pulmonary venous resistance and systemic venous pressure to maintain effective cardiac output. The significant cardiovascular adaptations required during pregnancy to meet the metabolic demands of the mother and fetus can overburden the limited preload capacity and venous compliance in Fontan patients, predisposing them to a spectrum of potential complications, including arrhythmias, heart failure, thromboembolism, and obstetric and fetal risks. This review delineates the essential physiological adaptations during pregnancy and the challenges faced by Fontan patients, advocating for a comprehensive care approach involving multidisciplinary collaboration, vigilant monitoring, tailored anesthetic management, and postpartum care. Understanding the complex dynamics between Fontan physiology and pregnancy is crucial for anesthesiologists to develop and execute individualized management strategies to minimize risks and optimize outcomes for this high-risk population.
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Affiliation(s)
- Wiriya Maisat
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Koichi Yuki
- Cardiac Anesthesia Division, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Boston, USA
- Department of Anaesthesia, Harvard Medical School, Boston, USA
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Aramburu J, Ruijsink B, Chabiniok R, Pushparajah K, Alastruey J. Patient-specific closed-loop model of the fontan circulation: Calibration and validation. Heliyon 2024; 10:e30404. [PMID: 38742066 PMCID: PMC11089314 DOI: 10.1016/j.heliyon.2024.e30404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/16/2024] Open
Abstract
The Fontan circulation, designed for managing patients with a single functional ventricle, presents challenges in long-term outcomes. Computational methods offer potential solutions, yet their application in cardiology practice remains largely unexplored. Our aim was to assess the ability of a patient-specific, closed-loop, reduced-order blood flow model to simulate pulsatile blood flow in the Fontan circulation. Using one-dimensional models, we simulated the aorta, superior and inferior venae cavae, and right and left pulmonary arteries, while lumping heart chambers and remaining vessels into zero-dimensional models. The model was calibrated with patient-specific haemodynamic data from combined cardiac catheterisation and magnetic resonance exams, using a novel physics-based stepwise methodology involving simpler open-loop models. Testing on a 10-year-old, anesthetised patient, demonstrated the model's capability to replicate pulsatile pressure and flow in the larger vessels and ventricular pressure. Average relative errors in mean pressure and flow were 2.9 % and 3.6 %, with average relative point-to-point errors (RPPE) in pressure and flow at 5.2 % and 16.0 %. Comparing simulation results to measurements, mean aortic pressure and flow values were 50.7 vs. 50.4 mmHg and 41.6 vs. 41.9 ml/s, respectively, while ventricular pressure values were 28.7 vs. 27.4 mmHg. The model accurately described time-varying ventricular volume with a RPPE of 2.9 %, with mean, minimum, and maximum ventricular volume values for simulation results vs. measurements at 59.2 vs. 58.2 ml, 38.0 vs. 37.6 ml, and 76.0 vs. 74.4 ml, respectively. It provided physiologically realistic predictions of haemodynamic changes from pulmonary vasodilation and atrial fenestration opening. The new model and calibration methodology are freely available, offering a platform to virtually investigate the Fontan circulation's response to clinical interventions and explore potential mechanisms of Fontan failure. Future efforts will concentrate on broadening the model's applicability to a wider range of patient populations and clinical scenarios, as well as testing its effectiveness.
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Affiliation(s)
- Jorge Aramburu
- Universidad de Navarra, TECNUN Escuela de Ingeniería, P° Manuel Lardizabal 13, 20018, Donostia/San Sebastián, Spain
| | - Bram Ruijsink
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, SE1 7EH, London, UK
| | - Radomir Chabiniok
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, SE1 7EH, London, UK
- Division of Pediatric Cardiology, Department of Pediatrics, UT Southwestern Medical Center, Dallas, TX, USA
| | - Kuberan Pushparajah
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, SE1 7EH, London, UK
- Department of Congenital Heart Disease, Evelina Children's Hospital, SE1 7EH, London, UK
| | - Jordi Alastruey
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, SE1 7EH, London, UK
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Opotowsky AR. The Pathophysiology(ies) of Heart Failure in Adults with Congenital Heart Disease. Heart Fail Clin 2024; 20:129-136. [PMID: 38462317 DOI: 10.1016/j.hfc.2024.01.001] [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] [Indexed: 03/12/2024]
Abstract
There is a growing, aging population of adults with congenital heart disease (CHD) with an increasing incidence of heart failure. Unquestioning extrapolation of widely applicable definitions of heart failure and guidelines for managing heart failure in adults with acquired heart failure to adults with CHD can be problematic. A nuanced and flexible application of clinical judgment founded on a deep understanding of underlying pathophysiology is needed to most effectively apply the many recent advances in managing acquired heart failure to the care of adults with CHD.
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Affiliation(s)
- Alexander R Opotowsky
- Cincinnati Adult Congenital Heart Disease Program, Department of Pediatrics, Heart Institute, Cincinnati Children's Hospital, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 2003, Cincinnati, OH 45229, USA.
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The cardioprotective and anti-inflammatory effect of inhaled nitric oxide during Fontan surgery in patients with single ventricle congenital heart defects: a prospective randomized study. J Intensive Care 2022; 10:48. [PMID: 36229863 PMCID: PMC9558421 DOI: 10.1186/s40560-022-00639-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 09/24/2022] [Indexed: 11/10/2022] Open
Abstract
Background Fontan surgery with cardiopulmonary bypass (CPB) causes tremendous systemic stress and inflammatory responses, affecting postoperative organ function, morbidity, and mortality. Although this reaction triggers partially protective anti-inflammatory responses, it is harmful in patients with single ventricle congenital heart defects. Despite decades of research, an effective anti-inflammatory and stress defense strategy is lacking. This study investigated the influence of inhaled nitric oxide (NO) during CPB on early clinical results, including the duration of postoperative respiratory support as a primary outcome and a panel of laboratory analytes. Methods In this study, 115 patients were randomized to the Fontan-NO group (n = 48) and the Fontan group (n = 49). Eighteen patients were excluded from the study. The Fontan-NO group received NO inhaled directly into the oxygenator during CPB. Clinical data were collected, and blood samples were drawn for analysis at repeated intervals. Multiplex assays were used to analyze a proteome profile of molecules involved in stress response, inflammation, metabolic reactions, as well as heart and lung protection. Results Fontan-NO patients had significantly shorter respiratory support time with a median of 9.3 h (7.0; 13,2) vs 13.9 h (3.7; 18.5) by the absolute difference of 4.6 h [95% confidence interval, − 30.9 to 12.3; (p = 0.03)]. In addition, they have a shorter time in intensive care (p = 0.04) and lower pulmonary artery pressure after CPB discontinuation (p = 0.04), 4 h (p = 0.03) and 8 h (p = 0.03) after surgery. Fontan-NO patients also had a lower concentration of lactates (p = 0.04) and glucose after separation from CPB (p = 0.02) and lower catecholamine index (p = 0.042). Plasma factors analysis has shown a significantly higher concentration of interleukin-10, and a lower concentration of interleukin-6, interleukin-8, interleukin-1β, pentraxin, matrix metalloproteinase-8, troponin-I, creatine kinase myocardial band (CK-MB), and insulin in Fontan-NO group. Conclusions NO inhaled into the oxygenator during CPB can improve short-term clinical outcomes. It shortens intubation time and intensive care time. It reduces inflammatory response, improves myocardial and lung protection, and diminishes metabolic stress in patients with a single ventricle undergoing Fontan surgery. Trial registration number: The trial was preregistered, supervised, and supported by The Polish National Science Center (NCN/01/B/NZ5/04246). Supplementary Information The online version contains supplementary material available at 10.1186/s40560-022-00639-y.
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Schleiger A, Kramer P, Sallmon H, Jentsch N, Pileckaite M, Danne F, Schafstedde M, Müller HP, Müller T, Tacke F, Jara M, Stockmann M, Berger F, Ovroutski S. Functional hepatic deterioration determined by 13C-methacetin breath test is associated with impaired hemodynamics and late Fontan failure in adults. Front Cardiovasc Med 2022; 9:952080. [PMID: 36158803 PMCID: PMC9489932 DOI: 10.3389/fcvm.2022.952080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022] Open
Abstract
Background Despite improved survival a substantial number of Fontan patients eventually develop late failure. Fontan-associated liver disease (FALD) is the most frequent end-organ dysfunction. Although impaired hemodynamics and Fontan failure correlate with FALD severity, no association between hepatic functional metabolic impairment and Fontan hemodynamics has been established. Hypothesis Metabolic liver function measured by liver maximum function capacity test (LiMAx®) correlates with Fontan hemodynamics and Fontan failure. Methods From 2020 to 2022, 58 adult Fontan patients [median age: 29.3 years, IQR (12.7), median follow-up time after Fontan operation: 23.2 years, IQR (8.7)] were analyzed in a cross-sectional study. Hemodynamic assessment included echocardiography, cardiopulmonary exercise testing and invasive hemodynamic evaluation. Fontan failure was defined based on commonly applied clinical criteria and our recently composed multimodal Fontan failure score. Results LiMAx® test revealed normal maximum liver function capacity in 40 patients (>315 μg/h*kg). In 18 patients a mild to moderate impairment was detected (140–314 μg/h*kg), no patient suffered from severe hepatic deterioration (≤ 139 μg/kg*h). Fontan failure was present in 15 patients. Metabolic liver function was significantly reduced in patients with increased pulmonary artery pressure (p = 0.041. r = −0.269) and ventricular end-diastolic pressure (p = 0.033, r = −0.325), respectively. In addition, maximum liver function capacity was significantly impaired in patients with late Fontan failure (289.0 ± 99.6 μg/kg*h vs. 384.5 ± 128.6 μg/kg*h, p = 0.007). Conclusion Maximum liver function capacity as determined by LiMAx® was significantly reduced in patients with late Fontan failure. In addition, elevated pulmonary artery pressure and end-diastolic ventricular pressure were associated with hepatic functional metabolic impairment.
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Affiliation(s)
- Anastasia Schleiger
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- *Correspondence: Anastasia Schleiger
| | - Peter Kramer
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Hannes Sallmon
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Niklas Jentsch
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Marta Pileckaite
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Friederike Danne
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Marie Schafstedde
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- Institute for Cardiovascular Computer-Assisted Medicine, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Hans-Peter Müller
- Charité Centre for Internal Medicine and Dermatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Tobias Müller
- Department of Gastroenterology and Hepatology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Frank Tacke
- Department of Gastroenterology and Hepatology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Maximilian Jara
- Department of General, Visceral and Vascular Surgery, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Martin Stockmann
- Department of General, Visceral and Vascular Surgery, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Felix Berger
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- Department of Pediatric Cardiology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Stanislav Ovroutski
- Department of Congenital Heart Disease/Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
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Chubb H, Bulic A, Mah D, Moore JP, Janousek J, Fumanelli J, Asaki SY, Pflaumer A, Hill AC, Escudero C, Kwok SY, Mangat J, Ochoa Nunez LA, Balaji S, Rosenthal E, Regan W, Horndasch M, Asakai H, Tanel R, Czosek RJ, Young ML, Bradley DJ, Paul T, Fischbach P, Malloy-Walton L, McElhinney DB, Dubin AM. Impact and Modifiers of Ventricular Pacing in Patients With Single Ventricle Circulation. J Am Coll Cardiol 2022; 80:902-914. [PMID: 36007989 DOI: 10.1016/j.jacc.2022.05.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/04/2022] [Accepted: 05/23/2022] [Indexed: 10/15/2022]
Abstract
BACKGROUND Palliation of the single ventricle (SV) circulation is associated with a burden of lifelong complications. Previous studies have identified that the need for a permanent ventricular pacing system (PPMv) may be associated with additional adverse long-term outcomes. OBJECTIVES The goal of this study was to quantify the attributable risk of PPMv in patients with SV, and to identify modifiable risk factors. METHODS This international study was sponsored by the Pediatric and Congenital Electrophysiology Society. Centers contributed baseline and longitudinal data for functionally SV patients with PPMv. Enrollment was at implantation. Controls were matched 1:1 to PPMv subjects by ventricular morphology and sex, identified within center, and enrolled at matched age. Primary outcome was transplantation or death. RESULTS In total, 236 PPMv subjects and 213 matched controls were identified (22 centers, 9 countries). Median age at enrollment was 5.3 years (quartiles: 1.5-13.2 years), follow-up 6.9 years (3.4-11.6 years). Median percent ventricular pacing (Vp) was 90.8% (25th-75th percentile: 4.3%-100%) in the PPMv cohort. Across 213 matched pairs, multivariable HR for death/transplant associated with PPMv was 3.8 (95% CI 1.9-7.6; P < 0.001). Within the PPMv population, higher Vp (HR: 1.009 per %; P = 0.009), higher QRS z-score (HR: 1.19; P = 0.009) and nonapical lead position (HR: 2.17; P = 0.042) were all associated with death/transplantation. CONCLUSIONS PPMv in patients with SV is associated with increased risk of heart transplantation and death, despite controlling for increased associated morbidity of the PPMv cohort. Increased Vp, higher QRS z-score, and nonapical ventricular lead position are all associated with higher risk of adverse outcome and may be modifiable risk factors.
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Affiliation(s)
- Henry Chubb
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University, Stanford, California, USA; Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Stanford University, Stanford, California, USA.
| | - Anica Bulic
- Labatt Family Heart Centre, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Douglas Mah
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Jeremy P Moore
- Division of Cardiology, Department of Pediatrics, UCLA Health System, Los Angeles, California, USA; Division of Cardiology, Department of Medicine, Ahmanson/UCLA Adult Congenital Heart Disease Center, Los Angeles, California, USA; UCLA Cardiac Arrhythmia Center, UCLA Health System, Los Angeles, California, USA
| | - Jan Janousek
- Children's Heart Centre, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Jennifer Fumanelli
- Children's Heart Centre, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic; Pediatric Cardiology Unit, Department of Women's and Child's Health, University of Padova, Padova, Italy
| | - S Yukiko Asaki
- Primary Children's Hospital, University of Utah, Salt Lake City, Utah, USA
| | - Andreas Pflaumer
- The Royal Children's Hospital, MCRI and University of Melbourne, Melbourne, Victoria, Australia
| | - Allison C Hill
- Division of Cardiology, Children's Hospital Los Angeles, Los Angeles, California, USA; Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Carolina Escudero
- Department of Pediatrics, Division of Pediatric Cardiology, University of Alberta, Stollery Children's Hospital, Edmonton, Alberta, Canada
| | - Sit Yee Kwok
- Cardiology Centre, Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Hong Kong SAR, China
| | - Jasveer Mangat
- Paediatric Cardiology, Great Ormond Street, London, United Kingdom
| | | | - Seshadri Balaji
- Department of Pediatrics, Division of Cardiology, Oregon Health & Science University, Portland, Oregon, USA
| | - Eric Rosenthal
- Paediatric Cardiology, Evelina London Children's Hospital, London, United Kingdom
| | - William Regan
- Paediatric Cardiology, Evelina London Children's Hospital, London, United Kingdom
| | - Michaela Horndasch
- Department of Congenital Heart Diseases and Pediatric Cardiology, German Heart Center Munich, Munich, Germany
| | - Hiroko Asakai
- Department of Paediatrics, University of Tokyo Hospital, Tokyo, Japan
| | - Ronn Tanel
- Division of Pediatric Cardiology, Department of Pediatrics, UCSF School of Medicine, San Francisco, California, USA
| | - Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Ohio, USA
| | - Ming-Lon Young
- Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - David J Bradley
- University of Michigan, CS Mott Children's Hospital, Ann Arbor, Michigan, USA
| | - Thomas Paul
- Department of Pediatric Cardiology, Georg-August-University Medical Center, Göttingen, Germany
| | | | | | - Doff B McElhinney
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University, Stanford, California, USA; Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Stanford University, Stanford, California, USA
| | - Anne M Dubin
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University, Stanford, California, USA
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Kramer P, Schleiger A, Schafstedde M, Danne F, Nordmeyer J, Berger F, Ovroutski S. A Multimodal Score Accurately Classifies Fontan Failure and Late Mortality in Adult Fontan Patients. Front Cardiovasc Med 2022; 9:767503. [PMID: 35360016 PMCID: PMC8960137 DOI: 10.3389/fcvm.2022.767503] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 02/02/2022] [Indexed: 11/23/2022] Open
Abstract
Objectives Despite the outstanding success of the Fontan operation, it is a palliative procedure and a substantial number of patients experience late failure of the Fontan circulation. Clinical presentation and hemodynamic phenotypes of Fontan failure are considerably variable. While various parameters have been identified as risk factors for late Fontan failure, a feasible score to classify Fontan failure and possibly allow timely risk stratification is lacking. Here, we explored the possibility of developing a score based on hemodynamic, clinical and laboratory parameters to classify Fontan failure and mortality. Methods We performed a retrospective study in our cohort of adult Fontan patients from two institutions [n = 198, median follow-up after Fontan 20.3 (IQR 15.6–24.3) years], identifying those patients with clinical Fontan failure (n = 52, 26.3%). Various hemodynamic, echocardiographic, laboratory and clinical data were recorded and differences between patients with and without Fontan failure were analyzed. We composed a Fontan Failure Score containing 15 parameters associated with Fontan failure and/or mortality and assessed its accuracy to discriminate between patients with and without late Fontan failure as well as late mortality and survival. Results Late failure occurred at a median of 18.2 (IQR 9.1–21.1) years after Fontan completion. Mortality associated with Fontan failure was substantial (25/52, 48.1%) with freedom of death/transplantation/take-down of 64% at 5 years and 36% at 10 years after onset of Fontan failure, respectively. Patients with Fontan failure had a significantly higher median Fontan Failure Score compared to non-failing Fontan patients [8 points (IQR 5–10) vs. 2 points (IQR 1-5), p < 0.001]. The score accurately classifies Fontan failure as well as mortality as assessed with receiver operating characteristic analysis. Area under the curve of the Fontan Failure Score was 0.963 (95% CI 0.921; 0.985, p < 0.001) to discriminate failure and 0.916 (95% CI 0.873; 0.959, p < 0.001) to classify mortality. Conclusion We have developed an uncomplex yet remarkably accurate score to classify Fontan failure and late mortality in adult Fontan patients. Prospective validation and most likely refinement and calibration of the score in larger and preferably multi-institutional cohorts is required to assess its potential to predict the risk of Fontan failure and late mortality.
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Affiliation(s)
- Peter Kramer
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Centre Berlin, Berlin, Germany
- *Correspondence: Peter Kramer
| | - Anastasia Schleiger
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Centre Berlin, Berlin, Germany
| | - Marie Schafstedde
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Centre Berlin, Berlin, Germany
- Institute for Cardiovascular Computer-Assisted Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
| | - Friederike Danne
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Centre Berlin, Berlin, Germany
| | - Johannes Nordmeyer
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Centre Berlin, Berlin, Germany
| | - Felix Berger
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Centre Berlin, Berlin, Germany
- Department of Pediatric Cardiology, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Stanislav Ovroutski
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Centre Berlin, Berlin, Germany
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10
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Alsaied T, Lubert AM, Goldberg DJ, Schumacher K, Rathod R, Katz DA, Opotowsky AR, Jenkins M, Smith C, Rychik J, Amdani S, Lanford L, Cetta F, Kreutzer C, Feingold B, Goldstein BH. Protein losing enteropathy after the Fontan operation. INTERNATIONAL JOURNAL OF CARDIOLOGY CONGENITAL HEART DISEASE 2022; 7:100338. [PMID: 39712273 PMCID: PMC11657892 DOI: 10.1016/j.ijcchd.2022.100338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/24/2021] [Accepted: 01/20/2022] [Indexed: 11/24/2022] Open
Abstract
The Fontan or Fontan Kreutzer procedure is the culmination of staged, surgical palliation of functional single ventricle congenital heart disease, offering the potential for survival and good quality of life well into adulthood. As more patients with Fontan circulation age, a variety of complications involving almost every organ system may occur. Protein-losing enteropathy is a major cause of morbidity and mortality after the Fontan operation, occurring more often in patients with adverse hemodynamics and presenting weeks to years after Fontan surgery. The causes are not well understood, but likely include a combination of lymphatic insufficiency, high central venous pressure, loss of heparan sulfate from intestinal epithelial cells, abnormal mesenteric circulation, and intestinal inflammation. A comprehensive evaluation including multimodality imaging and cardiac catheterization is necessary to diagnose and treat any reversible causes. In advanced cases, early referral for heart transplantation evaluation or lymphatic decompression procedures (if the single ventricle function remains adequate) is indicated. Despite the improvement in detection and management options, the mortality remains high. Standardization of protein-losing enteropathy definition and management strategies will help facilitate interpretation of research and clinical experience, potentially fostering the identification of new therapies. Based on the published data, this review suggests a standardized approach to diagnosis and treatment.
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Affiliation(s)
- Tarek Alsaied
- Heart Institute, UPMC Children's Hospital of Pittsburgh, Division of Pediatric Cardiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Adam M. Lubert
- Heart Institute, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - David J. Goldberg
- The Children's Hospital of Philadelphia, Division of Pediatric Cardiology, Perelman School of Medicine, Philadelphia, PA, USA
| | - Kurt Schumacher
- Congenital Heart Center, C.S. Mott Children's Hospital, University of Michigan, Ann Arbor, MI, USA
| | - Rahul Rathod
- Department of Cardiology, Boston Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - David A. Katz
- Heart Institute, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Alexander R. Opotowsky
- Heart Institute, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Meredith Jenkins
- Division of Pharmacy, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Christopher Smith
- The Children's Hospital of Philadelphia, Division of Pediatric Cardiology, Perelman School of Medicine, Philadelphia, PA, USA
| | - Jack Rychik
- The Children's Hospital of Philadelphia, Division of Pediatric Cardiology, Perelman School of Medicine, Philadelphia, PA, USA
| | - Shahnawaz Amdani
- Department of Pediatric Cardiology, Cleveland Clinic Children's Hospital, Cleveland, OH, USA
| | - Lizabeth Lanford
- Heart Institute, UPMC Children's Hospital of Pittsburgh, Division of Pediatric Cardiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Frank Cetta
- Division of Pediatric Cardiology, Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Christian Kreutzer
- Division of Pediatric Cardiovascular Surgery, Hospital Universitario Austral, Pilar, Buenos Aires, Argentina
| | - Brian Feingold
- Heart Institute, UPMC Children's Hospital of Pittsburgh, Division of Pediatric Cardiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Bryan H. Goldstein
- Heart Institute, UPMC Children's Hospital of Pittsburgh, Division of Pediatric Cardiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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11
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Dirks S, Kramer P, Schleiger A, Speck HM, Wolfarth B, Thouet T, Berger F, Sallmon H, Ovroutski S. Home-Based Long-Term Physical Endurance and Inspiratory Muscle Training for Children and Adults With Fontan Circulation—Initial Results From a Prospective Study. Front Cardiovasc Med 2022; 8:784648. [PMID: 35198605 PMCID: PMC8858796 DOI: 10.3389/fcvm.2021.784648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/28/2021] [Indexed: 11/13/2022] Open
Abstract
BackgroundPatients with congenital heart disease (CHD)—including those after Fontan operation—are encouraged to be physically active.AimTo prospectively determine the effects of an individually adapted, home-based cycle ergometer endurance training in combination with inspiratory muscle training (IMT) in pediatric and adult Fontan patients. We, herein, report the results of the initial 10-months follow-up (phase 1).Methods18 patients (median age 16.5 years; range 10-43 years) completed baseline check-ups, and 4 and 10 months follow-up visits, which each included cardiopulmonary exercise testing (CPET), bodyplethysmography (including measurement of respiratory muscle strength), and a quality of life questionnaire (PedsQL™). The training program consisted of a home-based cycle ergometer endurance training on a “Magbike® AM-5i/3i” (DKN Technology®, Clermont-Ferrand, France) and IMT with a handheld “POWERbreathe® Medic plus” device. Patients performed 90 min of endurance training per week in addition to IMT (30 breaths per day, 6-7 times per week). After the first 4 months, patients underwent additional interval training.ResultsAfter 10 months of training, we observed significant increases in maximum relative workload (W/kg, p = 0.003) and in maximum inspiratory (MIP, p = 0.002) and expiratory (MEP, p = 0.008) pressures. Peak VO2 values did not increase significantly as compared to baseline (p = 0.12) in the entire cohort (n = 18), but reached statistical significance in a subgroup analysis of teenage/adult patients (n = 14; p = 0.03). Patients' subjective quality of life did not show any significant changes after 10 months of training.DiscussionIn Fontan patients, an individually adapted home-based training is safe and associated with improvements in some CPET variables. However, these improvements did not translate into an improved QoL after 10 months. With an unclear, but most likely negative, impact of the COVID-19 pandemic, improvements in QoL may become evident during further follow-up (phase 2 of the study).
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Affiliation(s)
- Stefan Dirks
- Department of Congenital Heart Disease—Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Peter Kramer
- Department of Congenital Heart Disease—Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Anastasia Schleiger
- Department of Congenital Heart Disease—Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Hans-Martin Speck
- Department of Congenital Heart Disease—Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Bernd Wolfarth
- Department of Sports Medicine, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Thomas Thouet
- Department of Sports Medicine, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Felix Berger
- Department of Congenital Heart Disease—Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- Department of Pediatric Cardiology, Charité—Universitätsmedizin Berlin, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK), Berlin, Germany
| | - Hannes Sallmon
- Department of Congenital Heart Disease—Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- Department of Pediatric Cardiology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Stanislav Ovroutski
- Department of Congenital Heart Disease—Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
- *Correspondence: Stanislav Ovroutski
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12
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Quante H, Müller N, Härtel JA, Jung T, Manunzio U, Breuer J, Herberg U. Systemic ventricular function in Fontan patients at rest and after exercise at altitude. Front Pediatr 2022; 10:1084468. [PMID: 36683788 PMCID: PMC9853047 DOI: 10.3389/fped.2022.1084468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/13/2022] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE Physical activity at high altitude is expected to pose risks for patients with Fontan circulation and to impair systemic ventricular function. This study aims to determine the effect of high-altitude hypoxia on ventricular function in Fontan patients at rest and after exercise. We hypothesize that systemic ventricular function deteriorates under hypoxic conditions in Fontan patients. METHODS In this prospective study, 21 Fontan patients (NYHA class I-II) and 21 age-, gender- and body mass index-matched healthy controls were enrolled (median age 17.9 and 16.9 years). Transthoracic echocardiography was performed at rest, after peak (PE) and after continuous exercise (CE) in normoxia and hypoxia at simulated altitude (2,500 m above sea level). The effect of hypoxia on echocardiographic parameters was quantified by linear mixed-effects models and the difference between normoxia and hypoxia (Δ= hypoxia-normoxia). RESULTS At rest, cardiac output (CO) estimated by outflow tract velocity time integral × heart rate and annular plane systolic excursion (APSE) were lower in hypoxia compared to normoxia in Fontan patients (CO: Δ = -12.0%, n.s.; APSE: Δ = -9.6%, p < 0.001), an increase was observed in controls (CO: Δ = 8.5%, n.s.; APSE: Δ = 2.5%, n.s.). Other parameters of systolic and diastolic function did not show relevant changes. After exercise under hypoxic conditions, Fontan patients did not show relevant deterioration of systolic function compared to normoxia. Late, active diastolic filling reflected by A-wave velocity remained unchanged in Fontan patients, but increased in controls. Under hypoxic conditions, CO and workload were higher after CE than PE in Fontan patients (CO: PE Δ = 1,530 vs. CE 1630), whereas controls showed higher work load and CO estimates after PE than CE as expected (CO: PE Δ = 2,302 vs. CE 2149). CONCLUSION Fontan patients clinically tolerated short-term altitude exposure up to two hours and exercise and showed no consistent deterioration of systolic systemic ventricular function, but parameters of myocardial contractility, heart rate and cardiac output did not increase as observed in controls. This is likely to be multifactorial and may include intrinsic cardiac dysfunction as well as preload inadequacy and the lack of augmented atrial contraction. CE may be better tolerated than PE.
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Affiliation(s)
- Hannah Quante
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Nicole Müller
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | | | - Thomas Jung
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Ursula Manunzio
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Johannes Breuer
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Ulrike Herberg
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
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13
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Zartner PA, Mini N, Momcilovic D, Schneider MB, Dittrich S. Telemonitoring with Electronic Devices in Patients with a Single Ventricle Anatomy. Thorac Cardiovasc Surg 2021; 69:e53-e60. [PMID: 34891178 PMCID: PMC8672881 DOI: 10.1055/s-0041-1735479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background A growing number of patients with a single ventricle anatomy, who had a
Fontan palliation as a child, are now reaching adulthood. Many need an epimyocardial
pacemaker system with an optional telemonitoring (TM) unit, which evaluates the collected
data and sends it via Internet to the patient's physician. There are no data on the
reliability and clinical relevance of these systems in this patient group. Methods We analyzed data in 48 consecutive patients (mean age 18 years, standard
deviation 9 years) with a Fontan or Fontan-like palliation who received a cardiac
implantable electronic device with a TM unit from Biotronik (Home Monitoring) or Medtronic
(CareLink) between 2005 and 2020 with regard to the reliability and clinical relevance of
the downloaded data. Results The observation period was from 4 months to 14 years (mean 7 years,
standard deviation 3.9 years). A total of 2.9 event messages (EMs)/patient/month and 1.3
intracardiac electrogram recordings/patient/month were received. Two patients died during
follow-up. The combination of regularly arriving statistical data and 313 clinically
relevant EMs led to the modification of antiarrhythmic or diuretic medication,
hospitalization with cardioversion or ablation, and cortisone therapy to avoid exit block
in 21 (44%) patients. Conclusion TM is an instrument to receive functional and physiologic parameters of
our Fontan patients. It provides the ability to respond early for signs of system failure,
or arrhythmia, even if the patient is not experiencing any problems. It is a useful tool
to manage this difficult patient population without frequent hospital visits.
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Affiliation(s)
- Peter A Zartner
- Department of Cardiology, German Paediatric Heart Centre, University of Bonn, Bonn, Germany
| | - Nathalie Mini
- Department of Cardiology, German Paediatric Heart Centre, University of Bonn, Bonn, Germany
| | - Diana Momcilovic
- Department of Cardiology and Pulmonology, University of Bonn, Bonn, Germany
| | - Martin B Schneider
- Department of Cardiology, German Paediatric Heart Centre, University of Bonn, Bonn, Germany
| | - Sven Dittrich
- Department of Paediatric Cardiology, University of Erlangen-Nuremberg, Erlangen, Germany
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14
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Sallmon H, Ovroutski S, Schleiger A, Photiadis J, Weber SC, Nordmeyer J, Berger F, Kramer P. Late Fontan failure in adult patients is predominantly associated with deteriorating ventricular function. Int J Cardiol 2021; 344:87-94. [PMID: 34563595 DOI: 10.1016/j.ijcard.2021.09.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/19/2021] [Accepted: 09/20/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND The Fontan operation is a palliative procedure and a substantial number of patients eventually experiences late Fontan circulation failure. Previous concepts of Fontan failure implicate increasing pulmonary vascular resistance (PVR) as a key contributor to late circulatory failure. However, data to support this assumption are sparse. We sought to characterize longitudinal hemodynamic and echocardiographic findings in adult failing Fontan patients. METHODS We performed a retrospective cohort study in adult Fontan patients, identifying patients with Fontan failure. Hemodynamic, echocardiographic and clinical data were recorded. RESULTS Of 173 adult patients (median follow-up after Fontan 20.2 years [IQR 15.7-24.3]), 48 (28%) showed signs of clinical Fontan failure. Thirty-seven patients (77.1%) exhibited ventricular dysfunction (systolic dysfunction defined by ejection fraction ≤45%, n = 22, or diastolic dysfunction defined by systemic ventricular end-diastolic pressure (SVEDP) ≥12 mmHg, n = 15). Elevated indexed PVR (≥2.5 WU*m2) was only observed in 9 (18.8%) patients. Ejection fraction declined from 60% [IQR 55-65] to 47% [IQR 35-55] during follow-up (p < 0.001). Mean pulmonary artery pressure and SVEDP increased from 11 mmHg [IQR 9-15] to 15 mmHg [IQR 12-18] and from 7 mmHg [IQR 4-10] to 11 mmHg [IQR 8-15] (both p < 0.001), respectively, while indexed PVR did not change significantly (2.1 [IQR 1.1-2.4] vs. 1.7 [IQR 1.1-2.5] WU*m2, p = 0.949). Fontan failure-associated mortality during follow-up was substantial (23/48; 48%). CONCLUSIONS Systolic and diastolic ventricular dysfunction are frequent features in late Fontan failure in adults, while increases in PVR were rarely observed. The intricate interplay between hemodynamic compromises in Fontan failure deserves further research to optimize treatment strategies and outcome.
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Affiliation(s)
- Hannes Sallmon
- Department of Pediatric Cardiology, Charité - Universitätsmedizin Berlin, Germany; Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Center Berlin, Germany
| | - Stanislav Ovroutski
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Center Berlin, Germany
| | - Anastasia Schleiger
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Center Berlin, Germany
| | - Joachim Photiadis
- Department of Congenital Heart Surgery, German Heart Center Berlin, Germany
| | - Sven C Weber
- Department of Pediatric Cardiology, Charité - Universitätsmedizin Berlin, Germany
| | - Johannes Nordmeyer
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Center Berlin, Germany
| | - Felix Berger
- Department of Pediatric Cardiology, Charité - Universitätsmedizin Berlin, Germany; Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Center Berlin, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Germany
| | - Peter Kramer
- Department of Congenital Heart Disease/Pediatric Cardiology, German Heart Center Berlin, Germany.
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15
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Herberg U, Knies R, Müller N, Breuer J. Altitude exposure in pediatric pulmonary hypertension-are we ready for (flight) recommendations? Cardiovasc Diagn Ther 2021; 11:1122-1136. [PMID: 34527538 DOI: 10.21037/cdt-20-494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/27/2020] [Indexed: 11/06/2022]
Abstract
Patients with congenital heart disease are surviving further into adulthood and want to participate in multiple activities. This includes exposure to high altitude by air travel or recreational activities, such as hiking and skiing. However, at an altitude of about 2,500 m, the barometric environmental pressure is reduced and the partial pressure of inspired oxygen drops from 21% to 15% (hypobaric hypoxia). In physiologic response to high-altitude-related hypoxia, pulmonary vasoconstriction is induced within minutes of exposure followed by compensatory hyperventilation and increased cardiac output. Even in healthy children and adults, desaturation can be profound and lead to a significant rise in pulmonary pressure and resistance. Individuals with already increased pulmonary pressure may be placed at risk during high-altitude exposure, as compensatory mechanisms may be limited. Little is known about the physiological response and risk of developing clinically relevant events on altitude exposure in pediatric pulmonary hypertension (PAH). Current guidelines are, in the absence of clinical studies, mainly based on expert opinion. Today, healthcare professionals are increasingly faced with the question, how best to assess and advise on the safety of individuals with PAH planning air travel or an excursion to mountain areas. To fill the gap, this article summarises the current clinical knowledge on moderate to high altitude exposure in patients with different forms of pediatric PAH.
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Affiliation(s)
- Ulrike Herberg
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Ralf Knies
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Nicole Müller
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Johannes Breuer
- Department of Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
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16
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Saef JM, Ghobrial J. Valvular heart disease in congenital heart disease: a narrative review. Cardiovasc Diagn Ther 2021; 11:818-839. [PMID: 34295708 DOI: 10.21037/cdt-19-693-b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 01/29/2021] [Indexed: 12/29/2022]
Abstract
Patients with congenital heart disease (CHD) are one of the fastest growing populations in cardiology, and valvular pathology is at the center of many congenital lesions. Derangements in valvular embryology lead to several anomalies prone to dysfunction, each with hemodynamic effects that require appropriate surveillance and management. Surgical innovation has provided new treatments that have improved survival in this population, though has also contributed to esotericism in patients who already have unique anatomic and physiologic considerations. Conduit and prosthesis durability are often monitored collaboratively with general and specialized congenital-focused cardiologists. As such, general cardiologists must become familiar with valvular disease with CHD for appropriate care and referral practices. In this review, we summarize the embryology of the semilunar and atrioventricular (AV) valves as a foundation for understanding the origins of valvular CHD and describe the mechanisms that account for heterogeneity in disease. We then highlight the categories of pathology from the simple (e.g., bicuspid aortic valve, isolated pulmonic stenosis) to the more complex (e.g., Ebstein's anomaly, AV valvular disease in single ventricle circulations) with details on natural history, diagnosis, and contemporary therapeutic approaches. Care for CHD patients requires collaborative effort between providers, both CHD-specialized and not, to achieve optimal patient outcomes.
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Affiliation(s)
- Joshua M Saef
- Division of Cardiology, Heart and Vascular Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Joanna Ghobrial
- Division of Cardiology, Heart and Vascular Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
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17
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Mohanakumar S, Kelly B, Turquetto ALR, Alstrup M, Amato LP, Barnabe MSR, Silveira JBD, Amaral F, Manso PH, Jatene MB, Hjortdal VE. Functional lymphatic reserve capacity is depressed in patients with a Fontan circulation. Physiol Rep 2021; 9:e14862. [PMID: 34057301 PMCID: PMC8165731 DOI: 10.14814/phy2.14862] [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] [Accepted: 04/13/2021] [Indexed: 12/17/2022] Open
Abstract
Background Lymphatic abnormalities play a role in effusions in individuals with a Fontan circulation. Recent results using near‐infrared fluorescence imaging disclosed an increased contraction frequency of lymphatic vessels in Fontan patients compared to healthy controls. It is proposed that the elevated lymphatic pumping seen in the Fontan patients is necessary to maintain habitual interstitial fluid balance. Hyperthermia has previously been used as a tool for lymphatic stress test. By increasing fluid filtration in the capillary bed, the lymphatic workload and contraction frequency are increased accordingly. Using near‐infrared fluorescence imaging, the lymphatic functional reserve capacity in Fontan patients were explored with a lymphatic stress test. Methods Fontan patients (n = 33) were compared to a group of 15 healthy individuals of equal age, weight, and gender. The function of the superficial lymphatic vessels in the lower leg during rest and after inducing hyperthermia was investigated, using near‐infrared fluorescence imaging. Results Baseline values in the Fontan patients showed a 57% higher contraction frequency compared to the healthy controls (0.4 ± 0.3 min−1 vs. 0.3 ± 0.2 min−1, p = 0.0445). After inducing stress on the lymphatic vessels with hyperthermia the ability to increase contraction frequency was decreased in the Fontan patients compared to the controls (0.6 ± 0.5 min−1 vs. 1.2 ± 0.8 min−1, p = 0.0102). Conclusions Fontan patients had a higher lymphatic contraction frequency during normal circumstances. In the Fontan patients, the hyperthermia response is dampened indicating that the functional lymphatic reserve capacity is depressed. This diminished reserve capacity could be part of the explanation as to why some Fontan patients develop late‐onset lymphatic complications.
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Affiliation(s)
- Sheyanth Mohanakumar
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Aarhus, Denmark.,Department of Radiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen, Denmark
| | - Benjamin Kelly
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | | | - Mathias Alstrup
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | | | | | | | - Fernando Amaral
- Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, Brazil.,Pediatric and Adult Congenital Heart Disease Unit, Hospital das Clínicas, Ribeirão Preto, Brazil
| | - Paulo Henrique Manso
- Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, Brazil.,Pediatric and Adult Congenital Heart Disease Unit, Hospital das Clínicas, Ribeirão Preto, Brazil
| | | | - Vibeke Elisabeth Hjortdal
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen, Denmark
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18
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Colman K, Alsaied T, Lubert A, Rossiter HB, Mays WA, Powell AW, Knecht S, Poe D, Ollberding N, Gao Z, Chin C, Veldtman GR. Peripheral venous pressure changes during exercise are associated with adverse Fontan outcomes. Heart 2021; 107:983-988. [PMID: 33127650 DOI: 10.1136/heartjnl-2020-317179] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/22/2020] [Accepted: 09/30/2020] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE Elevated central venous pressure (CVP) plays an important role in the development of adverse Fontan outcomes. Peripheral venous pressure (PVP) has been validated as a surrogate for CVP in Fontan patients. We hypothesised that PVP in response to exercise will be associated with a greater prevalence of Fontan morbidity. METHODS Adult Fontan patients had cardiopulmonary exercise testing (CPET) with PVP monitoring in the upper extremity between 2015 and 2018. PVP at rest, during unloaded cycling and at peak exercise was compared between those with and without adverse Fontan outcomes including arrhythmia, unscheduled hospital admissions, heart failure requiring diuretics, need for reintervention and a composite outcome of the above morbidities, heart transplantation and death. RESULTS Forty-six patients with a mean age at CPET of 26.9±9.5 years. During exercise, PVP increased from 13.6±3.5 mm Hg at rest, to 16.5±3.9 mm Hg during unloaded cycling, to 23.0±5.5 mm Hg at peak exercise. Unloaded and peak PVP were more strongly associated than resting PVP with all adverse outcomes, except reintervention (composite outcome: resting PVP: OR 2.8, p=0.023; unloaded PVP: OR 6.1, p=0.001; peak PVP: OR 4.0, p<0.001). Cut-offs determined using ROC curve analysis had high specificity for the composite outcome (88% unloaded PVP ≥18 mm Hg; 89% peak PVP ≥25 mm Hg). CONCLUSION Higher PVP at unloaded and peak exercise was strongly associated with a higher prevalence of adverse Fontan outcomes. Minimally invasive PVP monitoring during CPET may serve as a useful tool for risk stratifying individuals with a Fontan.
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Affiliation(s)
- Kathleen Colman
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Tarek Alsaied
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Adam Lubert
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Harry B Rossiter
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Wayne A Mays
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Adam W Powell
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sandra Knecht
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Danielle Poe
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Nicholas Ollberding
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Zhiqian Gao
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Clifford Chin
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Gruschen R Veldtman
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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19
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Tran DL, Gibson H, Maiorana AJ, Verrall CE, Baker DW, Clode M, Lubans DR, Zannino D, Bullock A, Ferrie S, Briody J, Simm P, Wijesekera V, D'Almeida M, Gosbell SE, Davis GM, Weintraub R, Keech AC, Puranik R, Ugander M, Justo R, Zentner D, Majumdar A, Grigg L, Coombes JS, d'Udekem Y, Morris NR, Ayer J, Celermajer DS, Cordina R. Exercise Intolerance, Benefits, and Prescription for People Living With a Fontan Circulation: The Fontan Fitness Intervention Trial (F-FIT)-Rationale and Design. Front Pediatr 2021; 9:799125. [PMID: 35071139 PMCID: PMC8771702 DOI: 10.3389/fped.2021.799125] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/07/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Despite developments in surgical techniques and medical care, people with a Fontan circulation still experience long-term complications; non-invasive therapies to optimize the circulation have not been established. Exercise intolerance affects the majority of the population and is associated with worse prognosis. Historically, people living with a Fontan circulation were advised to avoid physical activity, but a small number of heterogenous, predominantly uncontrolled studies have shown that exercise training is safe-and for unique reasons, may even be of heightened importance in the setting of Fontan physiology. The mechanisms underlying improvements in aerobic exercise capacity and the effects of exercise training on circulatory and end-organ function remain incompletely understood. Furthermore, the optimal methods of exercise prescription are poorly characterized. This highlights the need for large, well-designed, multi-center, randomized, controlled trials. Aims and Methods: The Fontan Fitness Intervention Trial (F-FIT)-a phase III clinical trial-aims to optimize exercise prescription and delivery in people with a Fontan circulation. In this multi-center, randomized, controlled study, eligible Fontan participants will be randomized to either a 4-month supervised aerobic and resistance exercise training program of moderate-to-vigorous intensity followed by an 8-month maintenance phase; or usual care (control group). Adolescent and adult (≥16 years) Fontan participants will be randomized to either traditional face-to-face exercise training, telehealth exercise training, or usual care in a three-arm trial with an allocation of 2:2:1 (traditional:telehealth:control). Children (<16 years) will be randomized to either a physical activity and exercise program of moderate-to-vigorous intensity or usual care in a two-arm trial with a 1:1 allocation. The primary outcome is a change in aerobic exercise capacity (peak oxygen uptake) at 4-months. Secondary outcomes include safety, and changes in cardiopulmonary exercise testing measures, peripheral venous pressure, respiratory muscle and lung function, body composition, liver stiffness, neuropsychological and neurocognitive function, physical activity levels, dietary and nutritional status, vascular function, neurohormonal activation, metabolites, cardiac function, quality of life, musculoskeletal fitness, and health care utilization. Outcome measures will be assessed at baseline, 4-months, and 12-months. This manuscript will describe the pathophysiology of exercise intolerance in the Fontan circulation and the rationale and protocol for the F-FIT.
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Affiliation(s)
- Derek L Tran
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.,Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia.,Charles Perkins Centre, Heart Research Institute, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Hannah Gibson
- Charles Perkins Centre, Heart Research Institute, Sydney, NSW, Australia
| | - Andrew J Maiorana
- School of Allied Health, Curtin University, Perth, WA, Australia.,Allied Health Department, Fiona Stanley Hospital, Perth, WA, Australia
| | - Charlotte E Verrall
- The University of Sydney Westmead Clinical School, Sydney, NSW, Australia.,Heart Centre for Children, The Children's Hospital at Westmead, Sydney, NSW, Australia
| | - David W Baker
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.,Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia
| | - Melanie Clode
- Heart Research Group, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - David R Lubans
- School of Education, Priority Research Centre for Physical Activity and Nutrition, The University of Newcastle, Newcastle, NSW, Australia
| | - Diana Zannino
- Heart Research Group, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Andrew Bullock
- Paediatric and Adult Congenital Cardiology, Perth Children's Hospital, Perth, WA, Australia
| | - Suzie Ferrie
- Department of Nutrition and Dietetics, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Julie Briody
- Department of Nuclear Medicine, The Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Peter Simm
- Heart Research Group, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Vishva Wijesekera
- Department of Cardiology, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Michelle D'Almeida
- Charles Perkins Centre, Heart Research Institute, Sydney, NSW, Australia
| | - Sally E Gosbell
- Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia.,Charles Perkins Centre, Heart Research Institute, Sydney, NSW, Australia.,Heart Centre for Children, The Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Glen M Davis
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Robert Weintraub
- Heart Research Group, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Cardiology, The Royal Children's Hospital, Melbourne, VIC, Australia
| | - Anthony C Keech
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.,Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia.,NHMRC Clinical Trials Centre, The University of Sydney, Sydney, NSW, Australia
| | - Rajesh Puranik
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.,Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia
| | - Martin Ugander
- Royal North Shore Hospital, The Kolling Institute, Sydney, NSW, Australia
| | - Robert Justo
- Paediatric Cardiac Service, Queensland Children's Hospital, Brisbane, QLD, Australia
| | - Dominica Zentner
- The University of Melbourne Medical School, Melbourne, VIC, Australia.,Department of Cardiology, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Avik Majumdar
- Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia.,Australian National Liver Transplant Unit, AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Leeanne Grigg
- The University of Melbourne Medical School, Melbourne, VIC, Australia.,Department of Cardiology, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Jeff S Coombes
- School of Human Movement and Nutrition Sciences, Centre for Research on Exercise, Physical Activity, and Health, The University of Queensland, Brisbane, QLD, Australia
| | - Yves d'Udekem
- Division of Cardiac Surgery, Children's National Hospital, Washington, DC, United States
| | - Norman R Morris
- Allied Health Collaborative and Queensland Lung Transplant Service, The Prince Charles Hospital, Brisbane, QLD, Australia.,School of Health Sciences and Social Work, Griffith University, Gold Coast, QLD, Australia
| | - Julian Ayer
- The University of Sydney Westmead Clinical School, Sydney, NSW, Australia.,Heart Centre for Children, The Children's Hospital at Westmead, Sydney, NSW, Australia
| | - David S Celermajer
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.,Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia.,Charles Perkins Centre, Heart Research Institute, Sydney, NSW, Australia
| | - Rachael Cordina
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.,Central Clinical School, The University of Sydney School of Medicine, Sydney, NSW, Australia.,Charles Perkins Centre, Heart Research Institute, Sydney, NSW, Australia.,Heart Research Group, Murdoch Children's Research Institute, Melbourne, VIC, Australia
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20
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Moosmann J, Schroeder C, Cesnjevar R, Rottermann K, Weigelt A, Dittrich S. Neutrophil-to-Lymphocyte and Platelet-to-Lymphocyte Ratio in Univentricular Patients From Birth to Follow-Up After Fontan-Predicting Lymphatic Abnormalities. Front Pediatr 2021; 9:740951. [PMID: 34956972 PMCID: PMC8692875 DOI: 10.3389/fped.2021.740951] [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: 07/14/2021] [Accepted: 11/17/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Reliable laboratory parameters identifying complications after Fontan surgery including the lymphatic abnormalities and the development of protein-losing enteropathy (PLE) are rare. Neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocte ratio (PLR) are inflammatory markers and have been studied to predict outcome and prognosis in various diseases. The aim of this study was to investigate NLR and PLR from birth to follow-up after Fontan and evaluate their use as prognostic parameters for single ventricle patients regarding the development of lymphatic malformations during follow-up. Materials and Methods: Sixty-six univentricular patients who underwent Fontan surgery and had 6-month follow-up magnetic resonance imaging (MRI) with T2 weighted lymphatic imaging after total cavopulmonary connection (TCPC) surgery were included in the study. NLR and PLR were determined at specific time points, from neonatal age to follow-up after Fontan operation and correlated to data from the MRI 6 months after Fontan. Results: NLR and PLR increase significantly over time from the first surgery during infancy to the follow-up after Fontan (both p < 0.0001), with a significant increase after the Glenn surgery for both ratios (each p < 0.0001). Higher NLR (p = 0.002) and higher PLR (p = 0.004) correlated with higher-grade classification of lymphatic abnormalities in T2-weighted imaging 6 months after Fontan surgery and higher NLR correlated with higher transpulmonary gradient prior to Fontan surgery (p = 0.035) Both ratios showed a significant correlation to total protein at follow-up (NLR p = 0.0038; PLR<0.0001). Conclusion: Increased NLR and PLR correlate with higher degree lymphatic malformations after TCPC and therefore might contribute as valuable additional biomarker during follow-up after TCPC. NLR and PLR are simple, inexpensive and easily available parameters to complement diagnostics after TCPC.
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Affiliation(s)
- Julia Moosmann
- Department of Pediatric Cardiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Christian Schroeder
- Department of Pediatric Cardiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Robert Cesnjevar
- Department of Pediatric Cardiac Surgery, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Kathrin Rottermann
- Department of Pediatric Cardiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Annika Weigelt
- Department of Pediatric Cardiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Sven Dittrich
- Department of Pediatric Cardiology, University of Erlangen-Nürnberg, Erlangen, Germany
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21
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Ing RJ, Mclennan D, Twite MD, DiMaria M. Anesthetic Considerations for Fontan-Associated Liver Disease and the Failing Fontan Circuit. J Cardiothorac Vasc Anesth 2020; 34:2224-2233. [PMID: 32249074 DOI: 10.1053/j.jvca.2020.02.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 02/19/2020] [Accepted: 02/23/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Richard J Ing
- Department of Anesthesiology, Children's Hospital Colorado, Anschutz Medical Campus, Aurora, CO; School of Medicine, University of Colorado, Aurora, CO.
| | - Daniel Mclennan
- Stead Family Children's Hospital, University of Iowa, Iowa City, IA
| | - Mark D Twite
- Department of Anesthesiology, Children's Hospital Colorado, Anschutz Medical Campus, Aurora, CO; School of Medicine, University of Colorado, Aurora, CO
| | - Michael DiMaria
- Department of Anesthesiology, Children's Hospital Colorado, Anschutz Medical Campus, Aurora, CO; School of Medicine, University of Colorado, Aurora, CO
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22
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Serial cardiovascular magnetic resonance feature tracking indicates early worsening of cardiac function in Fontan patients. Int J Cardiol 2020; 303:23-29. [DOI: 10.1016/j.ijcard.2019.12.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/18/2019] [Accepted: 12/19/2019] [Indexed: 12/18/2022]
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23
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Dobutamine stress testing in patients with Fontan circulation augmented by biomechanical modeling. PLoS One 2020; 15:e0229015. [PMID: 32084180 PMCID: PMC7034893 DOI: 10.1371/journal.pone.0229015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 01/28/2020] [Indexed: 02/02/2023] Open
Abstract
Understanding (patho)physiological phenomena and mechanisms of failure in patients with Fontan circulation-a surgically established circulation for patients born with a functionally single ventricle-remains challenging due to the complex hemodynamics and high inter-patient variations in anatomy and function. In this work, we present a biomechanical model of the heart and circulation to augment the diagnostic evaluation of Fontan patients with early-stage heart failure. The proposed framework employs a reduced-order model of heart coupled with a simplified circulation including venous return, creating a closed-loop system. We deploy this framework to augment the information from data obtained during combined cardiac catheterization and magnetic resonance exams (XMR), performed at rest and during dobutamine stress in 9 children with Fontan circulation and 2 biventricular controls. We demonstrate that our modeling framework enables patient-specific investigation of myocardial stiffness, contractility at rest, contractile reserve during stress and changes in vascular resistance. Hereby, the model allows to identify key factors underlying the pathophysiological response to stress in these patients. In addition, the rapid personalization of the model to patient data and fast simulation of cardiac cycles make our framework directly applicable in a clinical workflow. We conclude that the proposed modeling framework is a valuable addition to the current clinical diagnostic XMR exam that helps to explain patient-specific stress hemodynamics and can identify potential mechanisms of failure in patients with Fontan circulation.
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24
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Afshar Y, Tan W, Jones WM, Canobbio M, Lin J, Reardon L, Lluri G, Aboulhosn J, Koos BJ. Maternal Fontan procedure is a predictor of a small-for-gestational-age neonate: a 10-year retrospective study. Am J Obstet Gynecol MFM 2019; 1:100036. [PMID: 33345800 DOI: 10.1016/j.ajogmf.2019.100036] [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: 03/31/2019] [Revised: 06/02/2019] [Accepted: 08/07/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Women with single ventricle cardiac physiologic condition who have undergone Fontan procedures are surviving well into reproductive age and historically have been discouraged from pregnancy, despite the paucity of data regarding maternal and neonatal outcomes. OBJECTIVE Our primary objective was to investigate, in a large cohort, the maternal and neonatal outcomes of pregnant women who have undergone the Fontan procedure and to understand maternal and neonatal sequelae of their pregnancies. STUDY DESIGN This single-center retrospective cohort study involves pregnant women with a Fontan palliation who delivered at UCLA Medical Center over a 10-year period (2007-2017). All pregnancies were evaluated for differences in maternal and neonatal characteristics. RESULTS We identified 37 distinct pregnancies in 24 women with a Fontan procedure. The physiologic pregnancy-related increase in cardiac output is blunted substantially in Fontan circulation. Third-trimester cardiac index positively correlated to birthweight z-score (R2=0.48; P=.038) but not to small for gestational age (R2=0.13; P=.339). The most common cardiac complications in pregnancies of >24 weeks gestation were sustained arrhythmia (37.5%) and decompensated heart failure (21%). The 37 pregnancies comprised 25 live births (67.6%), 1 fetal death (2.7%), 9 spontaneous abortions (24%), and 2 pregnancy terminations (5.4%). Of the live births, 60% were preterm at an average gestational age of 34.9±3.7 weeks. Newborn infants were delivered via cesarean in 53%, operative vaginal delivery in 28%, and spontaneous vaginal delivery in 20%. Forty percent of neonates were born small (<10th percentile) for gestational age; 44.0% of all neonates were admitted to the neonatal intensive care unit. CONCLUSION Women with a single ventricle and Fontan circulation can have a successful pregnancy, although they are at increased risk for arrhythmias and heart failure. The decreased cardiac reserve in these pregnancies blunts the normal increase in maternal cardiac output, which is associated with preterm delivery and small-for-gestational-age neonates. Further studies are needed to determine to what extent the impaired rise in maternal cardiac output reduces uteroplacental perfusion, placental exchange, fetal growth, and onset of parturition.
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Affiliation(s)
- Yalda Afshar
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, CA.
| | - Weiyi Tan
- Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA
| | - William M Jones
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Mary Canobbio
- Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Jeannette Lin
- Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Leigh Reardon
- Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Gentian Lluri
- Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Jamil Aboulhosn
- Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Brian J Koos
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, CA
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25
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Rodefeld MD, Marsden A, Figliola R, Jonas T, Neary M, Giridharan GA. Cavopulmonary assist: Long-term reversal of the Fontan paradox. J Thorac Cardiovasc Surg 2019; 158:1627-1636. [PMID: 31564543 DOI: 10.1016/j.jtcvs.2019.06.112] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 01/16/2023]
Abstract
OBJECTIVE Fontan circulatory inefficiency can be addressed by replacing the missing subpulmonary power source to reverse the Fontan paradox. An implantable cavopulmonary assist device is described that will simultaneously reduce systemic venous pressure and increase pulmonary arterial pressure, improving preload and cardiac output, in a univentricular Fontan circulation on a long-term basis. METHODS A rotary blood pump that was based on the von Karman viscous pump was designed for implantation into the total cavopulmonary connection (TCPC). It will impart modest pressure energy to augment Fontan flow without risk of obstruction. In the event of rotational failure, it is designed to default to a passive flow diverter. Pressure-flow performance was characterized in vitro in a Fontan mock circulatory loop with blood analog. RESULTS The pump performed through the fully specified operating range, augmenting flow in all 4 directions of the TCPC. Pressure rise of 6 to 8 mm Hg was readily achieved, ranging to 14 mm Hg at highest speed (5600 rpm). Performance was consistent across a wide range of cardiac outputs. In stalled condition (0 rpm), there was no discernible pressure loss across the TCPC. CONCLUSIONS A blood pump technology is described that can reverse the Fontan paradox and may permit a surgical strategy of long-term biventricular maintenance of a univentricular Fontan circulation. The technology is intended for Fontan failure in which right-sided circulatory inefficiencies predominate and ventricular systolic function is preserved. It may also apply before clinical Fontan failure as health maintenance to preempt the progression of Fontan disease.
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Affiliation(s)
- Mark D Rodefeld
- Section of Cardiothoracic Surgery, Department of Surgery, Indiana University School of Medicine and James Whitcomb Riley Hospital for Children, Indianapolis, Ind.
| | - Alison Marsden
- Department of Bioengineering and Pediatrics, Stanford University, Stanford, Calif
| | - Richard Figliola
- Department of Mechanical Engineering, Clemson University, Clemson, SC
| | | | - Michael Neary
- Rotor Bearing Technology and Software Inc, Phoenixville, Pa
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26
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Rychik J, Atz AM, Celermajer DS, Deal BJ, Gatzoulis MA, Gewillig MH, Hsia TY, Hsu DT, Kovacs AH, McCrindle BW, Newburger JW, Pike NA, Rodefeld M, Rosenthal DN, Schumacher KR, Marino BS, Stout K, Veldtman G, Younoszai AK, d'Udekem Y. Evaluation and Management of the Child and Adult With Fontan Circulation: A Scientific Statement From the American Heart Association. Circulation 2019; 140:e234-e284. [PMID: 31256636 DOI: 10.1161/cir.0000000000000696] [Citation(s) in RCA: 530] [Impact Index Per Article: 88.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
It has been 50 years since Francis Fontan pioneered the operation that today bears his name. Initially designed for patients with tricuspid atresia, this procedure is now offered for a vast array of congenital cardiac lesions when a circulation with 2 ventricles cannot be achieved. As a result of technical advances and improvements in patient selection and perioperative management, survival has steadily increased, and it is estimated that patients operated on today may hope for a 30-year survival of >80%. Up to 70 000 patients may be alive worldwide today with Fontan circulation, and this population is expected to double in the next 20 years. In the absence of a subpulmonary ventricle, Fontan circulation is characterized by chronically elevated systemic venous pressures and decreased cardiac output. The addition of this acquired abnormal circulation to innate abnormalities associated with single-ventricle congenital heart disease exposes these patients to a variety of complications. Circulatory failure, ventricular dysfunction, atrioventricular valve regurgitation, arrhythmia, protein-losing enteropathy, and plastic bronchitis are potential complications of the Fontan circulation. Abnormalities in body composition, bone structure, and growth have been detected. Liver fibrosis and renal dysfunction are common and may progress over time. Cognitive, neuropsychological, and behavioral deficits are highly prevalent. As a testimony to the success of the current strategy of care, the proportion of adults with Fontan circulation is increasing. Healthcare providers are ill-prepared to tackle these challenges, as well as specific needs such as contraception and pregnancy in female patients. The role of therapies such as cardiovascular drugs to prevent and treat complications, heart transplantation, and mechanical circulatory support remains undetermined. There is a clear need for consensus on how best to follow up patients with Fontan circulation and to treat their complications. This American Heart Association statement summarizes the current state of knowledge on the Fontan circulation and its consequences. A proposed surveillance testing toolkit provides recommendations for a range of acceptable approaches to follow-up care for the patient with Fontan circulation. Gaps in knowledge and areas for future focus of investigation are highlighted, with the objective of laying the groundwork for creating a normal quality and duration of life for these unique individuals.
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27
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Rajpal S, Wu F, Opotowsky AR. Reply to: Deeper Insights Into the Fontan Circulation. World J Pediatr Congenit Heart Surg 2019; 10:521. [PMID: 31307297 DOI: 10.1177/2150135119849686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | - Fred Wu
- Brigham and Women's Hospital, and Boston Children's Hospital, Boston, MA, USA
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28
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Holbein CE, Veldtman GR, Moons P, Kovacs AH, Luyckx K, Apers S, Chidambarathanu S, Soufi A, Eriksen K, Jackson JL, Enomoto J, Fernandes SM, Johansson B, Alday L, Dellborg M, Berghammer M, Menahem S, Caruana M, Kutty S, Mackie AS, Thomet C, Budts W, White K, Sluman MA, Callus E, Cook SC, Khairy P, Cedars A. Perceived Health Mediates Effects of Physical Activity on Quality of Life in Patients With a Fontan Circulation. Am J Cardiol 2019; 124:144-150. [PMID: 31030969 DOI: 10.1016/j.amjcard.2019.03.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 03/13/2019] [Accepted: 03/15/2019] [Indexed: 01/07/2023]
Abstract
Patients with a Fontan circulation are at risk of a sedentary lifestyle. Given the direct relationship between physical activity and health, promotion of physical activity has the potential to improve outcomes, including quality of life (QOL). This study aimed to describe self-reported physical activity levels in adult Fontan patients and examine associations between physical activity, perceived health status and QOL. The sample consisted of 177 Fontan patients (Mage = 27.5 ± 7.6 years, 52% male) who reported their physical activity, perceived health status, and QOL as part of the cross-sectional Assessment of Patterns of Patient-Reported Outcomes in Adults with Congenital Heart disease - International Study. Descriptive statistics and univariate analyses of variance with planned contrasts were computed to describe physical activity characteristics. Mediation analyses tested whether perceived health status variables mediated the association between physical activity and QOL. Forty-six percent of patients were sedentary while only 40% met international physical activity guidelines. Higher physical activity was associated with younger age, lower NYHA class, higher perceived general health, and greater QOL. Patients who commuted by walking and engaged in sports reported better perceived health and QOL. Mediation analyses revealed that perceived general health but not NYHA functional class mediated the association between physical activity and QOL (αβ = 0.22, 95% confidence interval = 0.04 to 0.49). In conclusion, Fontan patients likely benefit from regular physical activity, having both higher perceived general health and functional capacity; greater perceived health status may contribute to enhanced QOL. In conclusion, these data support the pivotal role of regular physical activity for Fontan patients.
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Affiliation(s)
- Christina E Holbein
- Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | | | - Philip Moons
- KU Leuven Department of Public Health and Primary Care, KU Leuven - University of Leuven, Leuven, Belgium; Institute of Health and Care Sciences, University of Gothenburg, Gothenburg, Sweden; Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
| | - Adrienne H Kovacs
- Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Canada; Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
| | - Koen Luyckx
- School Psychology and Development in Context, KU Leuven - University of Leuven, Leuven, Belgium; UNIBS, University of the Free State Bloemfontein, Bloemfontein, South Africa
| | - Silke Apers
- KU Leuven Department of Public Health and Primary Care, KU Leuven - University of Leuven, Leuven, Belgium
| | - Shanti Chidambarathanu
- Pediatric Cardiology, Frontier Lifeline Hospital (Dr. K. M. Cherian Heart Foundation), Chennai, India
| | - Alexandra Soufi
- Department of Congenital Heart Disease, Louis Pradel Hospital, Hospices civils de Lyon, Lyon, France
| | - Katrine Eriksen
- Adult Congenital Heart Disease Center, Oslo University Hospital - Rikshospitalet, Oslo, Norway
| | - Jamie L Jackson
- Center for Biobehavioral Health, Nationwide Children's Hospital, Columbus, Ohio
| | - Junko Enomoto
- Department of Adult Congenital Heart Disease, Chiba Cardiovascular Center, Chiba, Japan
| | - Susan M Fernandes
- Stanford University School of Medicine, Department of Pediatrics and Medicine, Division of Pediatric Cardiology and Cardiovascular Medicine, Palo Alto, California
| | - Bengt Johansson
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Luis Alday
- Division of Cardiology, Hospital de Niños, Córdoba, Argentina
| | - Mikael Dellborg
- Adult Congenital Heart Unit, Sahlgrenska University Hospital/Östra, Gothenburg, Sweden; Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Malin Berghammer
- Institute of Health and Care Sciences, University of Gothenburg, Gothenburg, Sweden; Department of Health Sciences, University West, Trollhättan, Sweden
| | - Samuel Menahem
- Monash Heart, Monash Medical Centre, Monash University, Melbourne, Australia
| | | | - Shelby Kutty
- Adult Congenital Heart Disease Center, University of Nebraska Medical Center/ Children's Hospital and Medical Center, Omaha, Nebraska
| | - Andrew S Mackie
- Division of Cardiology, Stollery Children's Hospital, University of Alberta, Edmonton, Canada
| | - Corina Thomet
- Center for Congenital Heart Disease, Department of Cardiology, Inselspital - Bern University Hospital, University of Bern, Bern, Switzerland
| | - Werner Budts
- Division of Congenital and Structural Cardiology, University Hospitals Leuven, Leuven, Belgium; KU Leuven Department of Cardiovascular Sciences, KU Leuven - University of Leuven, Leuven, Belgium
| | - Kamila White
- Adult Congenital Heart Disease Center, Washington University and Barnes Jewish Heart & Vascular Center, University of Missouri, Saint Louis, Missouri
| | - Maayke A Sluman
- Department of Cardiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Edward Callus
- Clinical Psychology Service, IRCCS Policlinico San Donato, Milan, Italy
| | - Stephen C Cook
- Adult Congenital Heart Disease Center, Helen DeVos Children's Hospital, Grand Rapids, Michigan
| | - Paul Khairy
- Adult Congenital Heart Center, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Ari Cedars
- The University of Texas Southwestern Medical Center, Dallas, Texas.
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29
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Ing RJ, Twite MD. Noteworthy Literature published in 2017 for Congenital Cardiac Anesthesiologists. Semin Cardiothorac Vasc Anesth 2018; 22:35-48. [DOI: 10.1177/1089253217753398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review focuses on the literature published during the 13 months from December 2016 to December 2017 that is of interest to anesthesiologists taking care of children and adults with congenital heart disease. Five themes are addressed during this time period and 100 peer-reviewed articles are discussed.
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Affiliation(s)
- Richard J. Ing
- Children’s Hospital Colorado, Anschutz Medical Campus, Aurora, CO, USA
- University of Colorado, Aurora, CO, USA
| | - Mark D. Twite
- Children’s Hospital Colorado, Anschutz Medical Campus, Aurora, CO, USA
- University of Colorado, Aurora, CO, USA
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30
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Sano T, Ousaka D, Goto T, Ishigami S, Hirai K, Kasahara S, Ohtsuki S, Sano S, Oh H. Impact of Cardiac Progenitor Cells on Heart Failure and Survival in Single Ventricle Congenital Heart Disease. Circ Res 2018; 122:994-1005. [PMID: 29367212 DOI: 10.1161/circresaha.117.312311] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/09/2018] [Accepted: 01/23/2018] [Indexed: 01/14/2023]
Abstract
RATIONALE Intracoronary administration of cardiosphere-derived cells (CDCs) in patients with single ventricles resulted in a short-term improvement in cardiac function. OBJECTIVE To test the hypothesis that CDC infusion is associated with improved cardiac function and reduced mortality in patients with heart failure. METHODS AND RESULTS We evaluated the effectiveness of CDCs using an integrated cohort study in 101 patients with single ventricles, including 41 patients who received CDC infusion and 60 controls treated with staged palliation alone. Heart failure with preserved ejection fraction (EF) or reduced EF was stratified by the cardiac function after surgical reconstruction. The main outcome measure was to evaluate the magnitude of improvement in cardiac function and all-cause mortality at 2 years. Animal studies were conducted to clarify the underlying mechanisms of heart failure with preserved EF and heart failure with reduced EF phenotypes. At 2 years, CDC infusion increased ventricular function (stage 2: +8.4±10.0% versus +1.6±6.4%, P=0.03; stage 3: +7.9±7.5% versus -1.1±5.5%, P<0.001) compared with controls. In all available follow-up data, survival did not differ between the 2 groups (log-rank P=0.225), whereas overall patients treated by CDCs had lower incidences of late failure (P=0.022), adverse events (P=0.013), and catheter intervention (P=0.005) compared with controls. CDC infusion was associated with a lower risk of adverse events (hazard ratio, 0.411; 95% CI, 0.179-0.942; P=0.036). Notably, CDC infusion reduced mortality (P=0.038) and late complications (P<0.05) in patients with heart failure with reduced EF but not with heart failure with preserved EF. CDC-treated rats significantly reversed myocardial fibrosis with differential collagen deposition and inflammatory responses between the heart failure phenotypes. CONCLUSIONS CDC administration in patients with single ventricles showed favorable effects on ventricular function and was associated with reduced late complications except for all-cause mortality after staged procedures. Patients with heart failure with reduced EF but not heart failure with preserved EF treated by CDCs resulted in significant improvement in clinical outcome. CLINICAL TRIAL REGISTRATION URL: http://www.clinicaltrials.gov. Unique identifiers: NCT01273857 and NCT01829750.
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Affiliation(s)
- Toshikazu Sano
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Daiki Ousaka
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Takuya Goto
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Shuta Ishigami
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Kenta Hirai
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Shingo Kasahara
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Shinichi Ohtsuki
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Shunji Sano
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.)
| | - Hidemasa Oh
- From the Department of Cardiovascular Surgery (T.S., D.O., T.G., S.I., S.K.) and Department of Pediatrics (K.H., S.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan; Department of Regenerative Medicine, Center for Innovative Clinical Medicine, Okayama University Hospital, Japan, (H.O.); and Department of Pediatric Cardiothoracic Surgery, University of California, San Francisco (S.I., S.S.).
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