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Quintao R, Kwon JH, Bishara K, Rajab TK. Donor supply for partial heart transplantation in the United States. Clin Transplant 2023; 37:e15060. [PMID: 37354124 DOI: 10.1111/ctr.15060] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/24/2023] [Accepted: 06/13/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND Congenital heart disease (CHD) is the most common cause of birth defects worldwide. Valvular defects are a common form of CHDs, and, at this time, treatment options for children with unrepairable valve disease are limited. Issues with anticoagulation, sizing, and lack of growth in valve replacement options can lead to high mortality rates and incidence of reoperations. Partial heart transplantation, or transplantation of fresh valve allografts, has recently been described as a strategy to provide a durable and non-thrombogenic alternative to conventional prostheses and provide growth potential in pediatric patients. METHODS The United Network for Organ Sharing (UNOS) database was queried to analyze the number of pediatric donor hearts that were not recovered but had viable valves (n = 3565) between January 2010 and September 2021. Recoverable valves were grouped by donor age: infants (age < 1 year), toddlers (age ≥1 and <3 years), and children (age ≥3 and <18 years). Demographic characteristics of donors were analyzed between age groups. RESULTS Infants, toddlers, and children had a total of 344, 465, and 2756 hearts with recoverable valves, respectively, over the study period, representing an average of 29, 39, and 230 hearts with recoverable valves per year. CONCLUSION The results of our study identify the minimum donor supply for partial heart transplantation. The actual number is likely higher because it includes hearts not entered in the UNOS database and domino transplants from orthotopic heart transplant recipients. Partial heart transplantation is logistically feasible as there are recoverable valves available for all age groups, fulfilling a clinical need in pediatric patients with unrepairable valve disease.
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Affiliation(s)
- Ritchelli Quintao
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Jennie H Kwon
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Katherine Bishara
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Taufiek Konrad Rajab
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
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Hanse LC, Tjørnild MJ, Karunanithi Z, Høgfeldt Jedrzejczyk J, Islamagič L, Hummelshøj NE, Enevoldsen M, Lugones G, Høj Lauridsen M, Hjortdal VE, Lugones I. Trileaflet Semilunar Valve Reconstruction: Acute Porcine in Vivo Evaluation. World J Pediatr Congenit Heart Surg 2023; 14:509-515. [PMID: 37039366 DOI: 10.1177/21501351231166662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Objective: The surgical treatment of malformed semilunar valves in congenital heart defects is challenging in terms of providing both longevity and the potential to grow with the recipient. We investigated a new surgical technique "Trileaflet Semilunar Valve Reconstruction" in an acute porcine model, a technique with geometrical properties that could remain sufficient and allow for some growth with the child. Methods: An acute 60-kg porcine model was used. With echocardiography, baseline pulmonary valvular geometry and hemodynamics were investigated. On cardiopulmonary bypass, the pulmonary leaflets were explanted, and the Trileaflet Semilunar Valve Reconstruction was performed with customized homograft-treated pericardial neo-leaflets. Off bypass, hemodynamics was reassessed. Results: Twelve animals were investigated. The neo-valves were found sufficient in ten animals and with minimal regurgitation in two animals. The neo-valve had a peak gradient of 3 ± 2 mm Hg with a peak velocity of 0.8 ± 0.2 m/s. The coaptation in the neo-valve had a mean increase of 4 ± 3 mm, P < .001. The neo-valve had a windmill shape in the echocardiographic short-axis view, and the neo-leaflets billowed at the annular plane in the long-axis view. Conclusions: In this acute porcine model, the neo-valve had no clinically significant regurgitation or stenosis. The neo-valve had an increased coaptation, a windmill shape, and leaflets that billowed at the annular plane. These geometric findings may allow for sustained sufficiency as the annular and pulmonary artery dimension increase with the child's growth. Further long-term studies should be performed to evaluate the efficacy and the growth potential.
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Affiliation(s)
- Lisa Carlson Hanse
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Marcell Juan Tjørnild
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | - Johannes Høgfeldt Jedrzejczyk
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Lejla Islamagič
- Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | - Malene Enevoldsen
- Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Germán Lugones
- Centro de Ciencias Naturais e Humanas, Universidade Federal do ABC, Santo André, Sao Paulo, Brazil
| | - Mette Høj Lauridsen
- Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | - Ignacio Lugones
- Department of Congenital Heart Surgery, Hospital General de Niños "Dr Pedro de Elizalde", Buenos Aires, Argentina
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Crago M, Winlaw DS, Farajikhah S, Dehghani F, Naficy S. Pediatric pulmonary valve replacements: Clinical challenges and emerging technologies. Bioeng Transl Med 2023; 8:e10501. [PMID: 37476058 PMCID: PMC10354783 DOI: 10.1002/btm2.10501] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/17/2023] [Accepted: 01/29/2023] [Indexed: 03/06/2023] Open
Abstract
Congenital heart diseases (CHDs) frequently impact the right ventricular outflow tract, resulting in a significant incidence of pulmonary valve replacement in the pediatric population. While contemporary pediatric pulmonary valve replacements (PPVRs) allow satisfactory patient survival, their biocompatibility and durability remain suboptimal and repeat operations are commonplace, especially for very young patients. This places enormous physical, financial, and psychological burdens on patients and their parents, highlighting an urgent clinical need for better PPVRs. An important reason for the clinical failure of PPVRs is biofouling, which instigates various adverse biological responses such as thrombosis and infection, promoting research into various antifouling chemistries that may find utility in PPVR materials. Another significant contributor is the inevitability of somatic growth in pediatric patients, causing structural discrepancies between the patient and PPVR, stimulating the development of various growth-accommodating heart valve prototypes. This review offers an interdisciplinary perspective on these challenges by exploring clinical experiences, physiological understandings, and bioengineering technologies that may contribute to device development. It thus aims to provide an insight into the design requirements of next-generation PPVRs to advance clinical outcomes and promote patient quality of life.
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Affiliation(s)
- Matthew Crago
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyAustralia
| | - David S. Winlaw
- Department of Cardiothoracic SurgeryHeart Institute, Cincinnati Children's HospitalCincinnatiOHUSA
| | - Syamak Farajikhah
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyAustralia
| | - Fariba Dehghani
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyAustralia
| | - Sina Naficy
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyAustralia
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Sengupta A, Gauvreau K, Marx GR, Colan SD, Newburger JW, Baird CW, Del Nido PJ, Nathan M. Residual Lesion Severity Predicts Midterm Outcomes After Congenital Aortic Valve Repair. Ann Thorac Surg 2023; 115:159-165. [PMID: 36075398 DOI: 10.1016/j.athoracsur.2022.08.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/27/2022] [Accepted: 08/08/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND We sought to validate the technical performance score (TPS) as a predictor of midterm outcomes after congenital aortic valve repair. METHODS This was a single-center, retrospective review of consecutive patients who underwent aortic valve repair between January 1, 2011, and December 31, 2019. Predischarge echocardiograms were used to assign a TPS for each index operation as class 1, no aortic valve residua; class 2, minor aortic valve residua; or class 3, major aortic valve residua or predischarge reintervention for major residua. The primary outcome was postdischarge (late) unplanned aortic valve reintervention. Secondary outcomes included late mortality and at least moderate aortic regurgitation or stenosis at the latest follow-up or before the earliest reintervention. Associations between TPS and outcomes were assessed using competing risk, Cox proportional hazards, or logistic regression models, adjusting for preoperative patient- and procedure-related covariates. RESULTS Of 507 patients, there were 110 (21.7%) reinterventions, 22 (4.3%) deaths, and 67 (13.2%) cases of at least moderate aortic regurgitation or stenosis at the latest follow-up or earliest reintervention. On multivariable analysis, class 3 patients had a greater risk of reintervention (subdistribution hazard ratio, 2.6; 95% CI, 1.3-5.1; P = .005) and mortality (hazard ratio, 5.3; 95% CI. 1.1-25.2; P = .038) compared with class 1 patients. Adjusting for duration of follow-up, class 3 patients also had a greater risk of at least moderate aortic regurgitation or stenosis at the latest follow-up or earliest reintervention (odds ratio, 7.7; 95% CI, 2.5-24.2; P < .001) vs class 1 patients. CONCLUSIONS Patients with major residua after congenital aortic valve repair have significantly worse midterm outcomes compared with those with no residua, warranting closer follow-up.
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Affiliation(s)
- Aditya Sengupta
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Kimberlee Gauvreau
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts; Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts
| | - Gerald R Marx
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Steven D Colan
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Jane W Newburger
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Christopher W Baird
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts; Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Pedro J Del Nido
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts; Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Meena Nathan
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts; Department of Surgery, Harvard Medical School, Boston, Massachusetts.
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Robertson DM, Boucek DM, Martin MH, Gray RG, Griffiths ER, Eckhauser AW, Ou Z, Lambert LM, Williams RV, Husain SA. Transcatheter and Surgical Aortic Valve Implantation in Children, Adolescents, and Young Adults With Congenital Heart Disease. Am J Cardiol 2022; 177:128-136. [PMID: 35691707 DOI: 10.1016/j.amjcard.2022.04.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/23/2022] [Accepted: 04/29/2022] [Indexed: 11/30/2022]
Abstract
Transcatheter aortic valve implantation (TAVI) is common in adults but rare in children and adolescents. Since 2014, our institution has incorporated a transcatheter approach as an option for aortic valve replacement in this population. The purpose of this study was to compare short-term outcomes of TAVI with surgical aortic valve replacement (SAVR). This single-center, retrospective study included patients aged 10 to 21 years who had a native SAVR or TAVI between January 2010 to April 2020. Comparative analysis of baseline characteristics and a composite outcome (stroke within 6 months, readmission within 30 days, death) between SAVR and TAVI were made using chi-square test or Wilcoxon rank sum test, as appropriate. Of the 77 patients who underwent native aortic valve implantation during the study period (60 SAVR, 17 TAVI), 46 were aged 10 to 21 years (30 SAVR, 16 TAVI). Median follow-up was 3.8 years (interquartile range 1.5 to 4.9) for the SAVR group and 1.5 years (interquartile range 1.1 to 1.2) for the TAVI group. There was no difference in the composite outcome between groups. Patients in the SAVR group were more likely to have undergone concomitant surgical intervention and have longer intensive care unit and hospital stays. In conclusion, our study suggests similar short-term outcomes between SAVR and TAVI in children and young adults aged 10 to 21 years. Longer-term studies are essential to understand the utility of TAVI and to better consider the option of a transcatheter approach as an alternative to SAVR in the pediatric population.
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Affiliation(s)
- Dwight M Robertson
- Department of Pediatrics - Pediatric Cardiology, Primary Children's Hospital, Salt Lake City, UT; Air Force Institute of Technology, United States Air Force, Wright-Patterson Air Force Base, Dayton, Ohio.
| | - Dana M Boucek
- Department of Pediatrics - Pediatric Cardiology, Primary Children's Hospital, Salt Lake City, UT
| | - Mary Hunt Martin
- Department of Pediatrics - Pediatric Cardiology, Primary Children's Hospital, Salt Lake City, UT
| | - Robert G Gray
- Department of Pediatrics - Pediatric Cardiology, Primary Children's Hospital, Salt Lake City, UT
| | - Eric R Griffiths
- Division of Cardiothoracic Surgery - Pediatric Cardiothoracic Surgery, Primary Children's Hospital
| | - Aaron W Eckhauser
- Division of Cardiothoracic Surgery - Pediatric Cardiothoracic Surgery, Primary Children's Hospital
| | - Zhining Ou
- Division of Epidemiology, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
| | - Linda M Lambert
- Department of Pediatrics - Pediatric Cardiology, Primary Children's Hospital, Salt Lake City, UT
| | - Richard V Williams
- Department of Pediatrics - Pediatric Cardiology, Primary Children's Hospital, Salt Lake City, UT
| | - S Adil Husain
- Division of Cardiothoracic Surgery - Pediatric Cardiothoracic Surgery, Primary Children's Hospital
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Hammadah M, Karam J, Han BK, Bapat V, Cavalcante JL, Lesser J, Garcia S. Pulmonary Artery Pseudoaneurysm After Transcatheter Pulmonary Valve Replacement, a Novel Approach for Complication Management. STRUCTURAL HEART : THE JOURNAL OF THE HEART TEAM 2022; 6:100015. [PMID: 37273746 PMCID: PMC10236866 DOI: 10.1016/j.shj.2022.100015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 12/03/2021] [Accepted: 02/02/2022] [Indexed: 06/06/2023]
Affiliation(s)
- Muhammad Hammadah
- Cardiology Department, Minneapolis Heart Institute, Minneapolis, Minnesota, USA
| | - Joseph Karam
- Vascular Surgery Department, Minneapolis Heart Institute, Minneapolis, Minnesota, USA
| | - B. Kelly Han
- Cardiology Department, Minneapolis Heart Institute, Minneapolis, Minnesota, USA
| | - Vinayak Bapat
- Cardiothoracic Surgery Department, Minneapolis Heart Institute, Minneapolis, Minnesota, USA
| | - Joao L. Cavalcante
- Cardiology Department, Minneapolis Heart Institute, Minneapolis, Minnesota, USA
| | - John Lesser
- Cardiology Department, Minneapolis Heart Institute, Minneapolis, Minnesota, USA
| | - Santiago Garcia
- Cardiology Department, Minneapolis Heart Institute, Minneapolis, Minnesota, USA
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Fuster V. Editor-in-Chief's Top Picks From 2021. J Am Coll Cardiol 2022; 79:695-753. [PMID: 35177199 DOI: 10.1016/j.jacc.2022.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Each week, I record audio summaries for every paper in JACC, as well as an issue summary. This process has become a true labor of love due to the time they require, but I am motivated by the sheer number of listeners (16M+), and it has allowed me to familiarize myself with every paper that we publish. Thus, I have selected the top 100 papers (both Original Investigations and Review Articles) from distinct specialties each year. In addition to my personal choices, I have included papers that have been the most accessed or downloaded on our websites, as well as those selected by the JACC Editorial Board members. In order to present the full breadth of this important research in a consumable fashion, we will present these abstracts in this issue of JACC, as well as their Central Illustrations and podcasts. The highlights comprise the following sections: Artificial Intelligence & Machine Learning (NEW section), Basic & Translational Research, Biomarkers (NEW section), Cardiac Failure & Myocarditis, Cardiomyopathies & Genetics, Cardio-Oncology, Cardiovascular Disease in Women, Coronary Disease & Interventions, Congenital Heart Disease, Coronavirus, Hypertension, Imaging, Metabolic & Lipid Disorders, Neurovascular Disease & Dementia, Promoting Health & Prevention, Rhythm Disorders & Thromboembolism, Vascular Medicine, and Valvular Heart Disease.1-100.
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8
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Clark JB. Commentary: Surgical aortic valve repair as the primary option for children with congenital aortic stenosis. J Thorac Cardiovasc Surg 2021; 164:1275-1276. [PMID: 34906398 DOI: 10.1016/j.jtcvs.2021.11.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 11/23/2021] [Accepted: 11/30/2021] [Indexed: 10/31/2022]
Affiliation(s)
- Joseph B Clark
- Division of Pediatric Cardiac Surgery, Department of Pediatrics, Penn State Health Children's Hospital, Hershey, Pa.
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Motta SE, Falk V, Hoerstrup SP, Emmert MY. Polymeric valves appearing on the transcatheter horizon. Eur J Cardiothorac Surg 2021; 59:1057-1058. [PMID: 33966073 DOI: 10.1093/ejcts/ezab089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 02/07/2021] [Indexed: 11/15/2022] Open
Affiliation(s)
- Sarah E Motta
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,Department of Health Sciences and Technology, Swiss Federal Institute of Technology, Zurich, Switzerland.,Clinic for Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Simon P Hoerstrup
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland
| | - Maximilian Y Emmert
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland.,Department of Health Sciences and Technology, Swiss Federal Institute of Technology, Zurich, Switzerland.,Clinic for Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
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