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Lynch A, Jeewa A, Minn S, Arathoon K, Honjo O, Floh A, Hassan A, Jean-St-Michel E. Outcomes of Children With Hypoplastic Left Heart Syndrome and Heart Failure on Medical Therapy. JACC. ADVANCES 2024; 3:100811. [PMID: 38939382 PMCID: PMC11198231 DOI: 10.1016/j.jacadv.2023.100811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 09/05/2023] [Accepted: 11/09/2023] [Indexed: 06/29/2024]
Abstract
Background Systemic right ventricle (RV) dysfunction is associated with lower transplant-free survival (TFS) in hypoplastic left heart syndrome (HLHS), but the likelihood of functional improvement and utility of heart failure (HF) medications is not understood. Objectives The authors aimed to describe TFS, HF medication use, and surgical interventions in HLHS patients with RV dysfunction with and without subsequent improvement in function. Methods The SickKids HF Database is a retrospective cohort that includes all pediatric HLHS patients with RV dysfunction lasting >30 days. We compared TFS, HF medications, and surgical interventions in HLHS patients with and without functional normalization. Results Of 99 patients with HLHS and RV dysfunction, 52% had normalized function for ≥30 days. TFS at 2 years after dysfunction onset was lower in those without normalization (14% vs 78%, P < 0.001). Patients without normalization were less likely to reach target dosing (TD) of HF medications (27% vs 47% on 1 medication at TD, P < 0.001) and undergo Fontan completion (7% vs 53%, P < 0.001). Clinical factors associated with improved TFS were normalization of function for ≥30 days, onset of dysfunction after bidirectional Glenn, and exposure to ACE inhibition. Conclusions Our cohort of HLHS patients with systemic RV dysfunction demonstrated a novel finding of improved TFS in those with functional normalization for ≥30 days. Achieving TD of HF medications was associated with improved outcomes. This may reflect patient stability and tolerance for HF medication more than its therapeutic effect, but it can help inform decisions to proceed with surgical palliation or list for transplant.
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Affiliation(s)
- Aine Lynch
- Division of Cardiology, The Hospital for Sick Children, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Aamir Jeewa
- Division of Cardiology, The Hospital for Sick Children, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Sunghoon Minn
- Division of Cardiology, The Hospital for Sick Children, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Katelyn Arathoon
- Division of Cardiology, The Hospital for Sick Children, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Osami Honjo
- University of Toronto, Toronto, Ontario, Canada
- Division of Cardiovascular Surgery, The Labatt Family Heart Centre, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Alejandro Floh
- University of Toronto, Toronto, Ontario, Canada
- Division of Critical Care Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ahmed Hassan
- Division of Cardiology, The Hospital for Sick Children, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Emilie Jean-St-Michel
- Division of Cardiology, The Hospital for Sick Children, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
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van der Ven JPG, Kamphuis VP, van den Bosch E, Gnanam D, Terol C, Bogers AJJC, Breur JMPJ, Berger RMF, Blom NA, Ten Harkel ADJ, Koopman L, Helbing WA. Cardiac Function and Serum Biomarkers throughout Staged Fontan Palliation: A Prospective Observational Study. J Cardiovasc Dev Dis 2023; 10:289. [PMID: 37504546 PMCID: PMC10380373 DOI: 10.3390/jcdd10070289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/29/2023] Open
Abstract
Fontan patients undergo multiple cardiothoracic surgeries in childhood. Following these procedures, ventricular function is temporarily decreased, and recovers over months. This is presumably related to cardiopulmonary bypass, but this is incompletely understood. Throughout the Fontan palliation, cardiac function is also affected by volume unloading. We aimed to gain insight into the biological processes related to impaired ventricular function and recovery following Fontan palliations using a panel of biomarkers. Furthermore, we described changes in ventricular function across the Fontan palliation due to volume unloading. We performed a prospective multicenter observational study in patients undergoing partial (PCPC) or total cavo-pulmonary connection (TCPC). Patients underwent assessment-including echocardiography and blood sampling-before surgery (T1), at first follow-up (T2), and 1 year after their procedures (T3). Blood samples were analyzed using a biomarker panel (OLINK CVD-III). Ninety-two biomarkers were expressed as principal components (PC) to limit multiple statistical testing. We included 32 PCPC patients aged 7.2 [5.3-10.3] months, and 28 TCPC patients aged 2.7 [2.2-3.8] years. The single ventricular longitudinal strain (SV GLS) temporarily decreased for PCPC patients at T2 (-15.1 ± 5.6 (T1) to -13.5 ± 5.2 (T2) to -17.3 ± 4.5 (T3), p < 0.047 for all differences), but not following TCPC. The serum biomarkers were expressed as 4 PCs. PC1, including biomarkers of cell-cell adhesion, was not related to any patient characteristic. PC2, including biomarkers of superoxide anion regulation, increased at T2. PC3, including biomarkers of cardiovascular development, related to the stage of Fontan palliation. PC4 was of uncertain biological or clinical significance. No PC was found that related to ventricular performance. The SV GLS was temporarily diminished following PCPC, but not following TCPC. Several biomarkers were related to post-operative stress and adaptation to the PCPC or TCPC circulation, but none were related to the outcome.
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Affiliation(s)
- J P G van der Ven
- Division of Pediatric Cardiology, Department of Pediatrics, Erasmus MC Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
- Netherlands Heart Institute, 3501 DG Utrecht, The Netherlands
- Department of Cardiothoracic Surgery, Erasmus MC, 3015 CN Rotterdam, The Netherlands
| | - V P Kamphuis
- Netherlands Heart Institute, 3501 DG Utrecht, The Netherlands
- Division of Pediatric Cardiology, Department of Pediatrics, Leiden University Medical Center, 2300 RA Leiden, The Netherlands
| | - E van den Bosch
- Division of Pediatric Cardiology, Department of Pediatrics, Erasmus MC Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
- Netherlands Heart Institute, 3501 DG Utrecht, The Netherlands
| | - D Gnanam
- Division of Pediatric Cardiology, Department of Pediatrics, Erasmus MC Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
| | - C Terol
- Division of Pediatric Cardiology, Department of Pediatrics, Leiden University Medical Center, 2300 RA Leiden, The Netherlands
| | - A J J C Bogers
- Department of Cardiothoracic Surgery, Erasmus MC, 3015 CN Rotterdam, The Netherlands
| | - J M P J Breur
- Division of Pediatric Cardiology, Department of Pediatrics, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands
| | - R M F Berger
- Division of Pediatric Cardiology, Department of Pediatrics, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - N A Blom
- Division of Pediatric Cardiology, Department of Pediatrics, Leiden University Medical Center, 2300 RA Leiden, The Netherlands
- Division of Pediatric Cardiology, Department of Pediatrics, Amsterdam University Medical Center, 1007 MB Amsterdam, The Netherlands
| | - A D J Ten Harkel
- Division of Pediatric Cardiology, Department of Pediatrics, Leiden University Medical Center, 2300 RA Leiden, The Netherlands
| | - L Koopman
- Division of Pediatric Cardiology, Department of Pediatrics, Erasmus MC Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
| | - W A Helbing
- Division of Pediatric Cardiology, Department of Pediatrics, Erasmus MC Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
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Williams K, Khan A, Lee YS, Hare JM. Cell-based therapy to boost right ventricular function and cardiovascular performance in hypoplastic left heart syndrome: Current approaches and future directions. Semin Perinatol 2023; 47:151725. [PMID: 37031035 PMCID: PMC10193409 DOI: 10.1016/j.semperi.2023.151725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/10/2023]
Abstract
Congenital heart disease remains one of the most frequently diagnosed congenital diseases of the newborn, with hypoplastic left heart syndrome (HLHS) being considered one of the most severe. This univentricular defect was uniformly fatal until the introduction, 40 years ago, of a complex surgical palliation consisting of multiple staged procedures spanning the first 4 years of the child's life. While survival has improved substantially, particularly in experienced centers, ventricular failure requiring heart transplant and a number of associated morbidities remain ongoing clinical challenges for these patients. Cell-based therapies aimed at boosting ventricular performance are under clinical evaluation as a novel intervention to decrease morbidity associated with surgical palliation. In this review, we will examine the current burden of HLHS and current modalities for treatment, discuss various cells therapies as an intervention while delineating challenges and future directions for this therapy for HLHS and other congenital heart diseases.
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Affiliation(s)
- Kevin Williams
- Department of Pediatrics, University of Miami Miller School of Medicine. Miami FL, USA; Batchelor Children's Research Institute University of Miami Miller School of Medicine. Miami FL, USA
| | - Aisha Khan
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami FL, USA
| | - Yee-Shuan Lee
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami FL, USA
| | - Joshua M Hare
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami FL, USA; Division of Cardiology, Department of Medicine, University of Miami Miller School of Medicine. Miami FL, USA.
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Kaushal S, Hare JM, Hoffman JR, Boyd RM, Ramdas KN, Pietris N, Kutty S, Tweddell JS, Husain SA, Menon SC, Lambert LM, Danford DA, Kligerman SJ, Hibino N, Korutla L, Vallabhajosyula P, Campbell MJ, Khan A, Naioti E, Yousefi K, Mehranfard D, McClain-Moss L, Oliva AA, Davis ME. Intramyocardial cell-based therapy with Lomecel-B during bidirectional cavopulmonary anastomosis for hypoplastic left heart syndrome: the ELPIS phase I trial. EUROPEAN HEART JOURNAL OPEN 2023; 3:oead002. [PMID: 36950450 PMCID: PMC10026620 DOI: 10.1093/ehjopen/oead002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/19/2022] [Accepted: 01/06/2023] [Indexed: 01/13/2023]
Abstract
Aims Hypoplastic left heart syndrome (HLHS) survival relies on surgical reconstruction of the right ventricle (RV) to provide systemic circulation. This substantially increases the RV load, wall stress, maladaptive remodelling, and dysfunction, which in turn increases the risk of death or transplantation. Methods and results We conducted a phase 1 open-label multicentre trial to assess the safety and feasibility of Lomecel-B as an adjunct to second-stage HLHS surgical palliation. Lomecel-B, an investigational cell therapy consisting of allogeneic medicinal signalling cells (MSCs), was delivered via intramyocardial injections. The primary endpoint was safety, and measures of RV function for potential efficacy were obtained. Ten patients were treated. None experienced major adverse cardiac events. All were alive and transplant-free at 1-year post-treatment, and experienced growth comparable to healthy historical data. Cardiac magnetic resonance imaging (CMR) suggested improved tricuspid regurgitant fraction (TR RF) via qualitative rater assessment, and via significant quantitative improvements from baseline at 6 and 12 months post-treatment (P < 0.05). Global longitudinal strain (GLS) and RV ejection fraction (EF) showed no declines. To understand potential mechanisms of action, circulating exosomes from intramyocardially transplanted MSCs were examined. Computational modelling identified 54 MSC-specific exosome ribonucleic acids (RNAs) corresponding to changes in TR RF, including miR-215-3p, miR-374b-3p, and RNAs related to cell metabolism and MAPK signalling. Conclusion Intramyocardially delivered Lomecel-B appears safe in HLHS patients and may favourably affect RV performance. Circulating exosomes of transplanted MSC-specific provide novel insight into bioactivity. Conduct of a controlled phase trial is warranted and is underway.Trial registration number NCT03525418.
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Affiliation(s)
- Sunjay Kaushal
- The Heart Center, Division of Cardiovascular-Thoracic Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 E. Chicago Avenue, Chicago, IL 60611, USA
| | - Joshua M Hare
- Longeveron Inc, 1951 NW 7th Avenue, Suite 520, Miami, FL 33136, USA
- Department of Medicine and Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Jessica R Hoffman
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University School of Medicine, 313 Ferst Drive, Atlanta, GA 30332, USA
| | - Riley M Boyd
- The Heart Center, Division of Cardiovascular-Thoracic Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 E. Chicago Avenue, Chicago, IL 60611, USA
| | - Kevin N Ramdas
- Longeveron Inc, 1951 NW 7th Avenue, Suite 520, Miami, FL 33136, USA
| | - Nicholas Pietris
- Division of Pediatric Cardiology, Department of Pediatrics, University of Maryland School of Medicine, 110 S. Paca Street, Baltimore, MD 21201, USA
| | - Shelby Kutty
- Helen B. Taussig Heart Center, The Johns Hopkins Hospital and Johns Hopkins University, 1800 Orleans St., Baltimore, MD 21287, USA
| | - James S Tweddell
- Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - S Adil Husain
- Division of Pediatric Cardiothoracic Surgery, University of Utah/Primary Children's Medical Center, 295 Chipeta Way, Salt Lake City, Utah 84108, USA
| | - Shaji C Menon
- Department of Radiology, University of Utah/Primary Children's Medical Center, 295 Chipeta Way, Salt Lake City, UT 84108, USA
| | - Linda M Lambert
- Division of Pediatric Cardiology, University of Utah/Primary Children's Medical Center, 295 Chipeta Way, Salt Lake City, UT 84108, USA
| | - David A Danford
- Division of Cardiology, Children's Hospital & Medical Center, Nebraska Medicine, Department of Pediatrics, University of Nebraska, 983332 Nebraska Medical Center, Omaha, NE 68198, USA
| | - Seth J Kligerman
- Department of Radiology, University of California San Diego, 200 W. Arbor Drive, San Diego, CA 92103, USA
| | - Narutoshi Hibino
- Department of Surgery, The University of Chicago Medical Center, 5841 S. Maryland Avenue, Chicago, IL 60637, USA
| | - Laxminarayana Korutla
- Department of Surgery (Cardiac), Yale School of Medicine, Yale University, 789 Howard Avenue, New Haven, CT 06510, USA
| | - Prashanth Vallabhajosyula
- Department of Surgery (Cardiac), Yale School of Medicine, Yale University, 789 Howard Avenue, New Haven, CT 06510, USA
| | - Michael J Campbell
- Department of Pediatrics, Duke University School of Medicine, 2301 Erwin Road, Durham, NC 27705, USA
| | - Aisha Khan
- Department of Medicine and Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Eric Naioti
- Longeveron Inc, 1951 NW 7th Avenue, Suite 520, Miami, FL 33136, USA
| | - Keyvan Yousefi
- Longeveron Inc, 1951 NW 7th Avenue, Suite 520, Miami, FL 33136, USA
| | | | | | - Anthony A Oliva
- Longeveron Inc, 1951 NW 7th Avenue, Suite 520, Miami, FL 33136, USA
| | - Michael E Davis
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University School of Medicine, 313 Ferst Drive, Atlanta, GA 30332, USA
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5
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Geoffrion TR, Fuller SM. High-Risk Anatomic Subsets in Hypoplastic Left Heart Syndrome. World J Pediatr Congenit Heart Surg 2022; 13:593-599. [PMID: 36053102 DOI: 10.1177/21501351221111390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Despite overall improvements in outcomes for patients with hypoplastic left heart syndrome, there remain anatomic features that can place these patients at higher risk throughout their treatment course. These include severe preoperative obstruction to pulmonary venous return, restrictive atrial septum, coronary fistulae, severe tricuspid regurgitation, smaller ascending aorta diameter (especially if <2 mm), and poor ventricular function. The risk of traditional staged palliation has led to the development of alternative strategies for such patients. To further improve the outcomes, we must continue to diligently examine and study anatomic details in HLHS patients.
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Affiliation(s)
- Tracy R Geoffrion
- Division of Cardiothoracic Surgery, 6567Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Stephanie M Fuller
- Division of Cardiothoracic Surgery, 6567Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Division of Cardiothoracic Surgery, Department of Surgery, 14640Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
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6
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Oommen S, Cantero Peral S, Qureshi MY, Holst KA, Burkhart HM, Hathcock MA, Kremers WK, Brandt EB, Larsen BT, Dearani JA, Edwards BS, Maleszewski JJ, Nelson TJ. Autologous Umbilical Cord Blood-Derived Mononuclear Cell Therapy Promotes Cardiac Proliferation and Adaptation in a Porcine Model of Right Ventricle Pressure Overload. Cell Transplant 2022; 31:9636897221120434. [PMID: 36086821 PMCID: PMC9465577 DOI: 10.1177/09636897221120434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 07/19/2022] [Accepted: 07/31/2022] [Indexed: 11/29/2022] Open
Abstract
Congenital heart diseases, including single ventricle circulations, are clinically challenging due to chronic pressure overload and the inability of the myocardium to compensate for lifelong physiological demands. To determine the clinical relevance of autologous umbilical cord blood-derived mononuclear cells (UCB-MNCs) as a therapy to augment cardiac adaptation following surgical management of congenital heart disease, a validated model system of right ventricular pressure overload due to pulmonary artery banding (PAB) in juvenile pigs has been employed. PAB in a juvenile porcine model and intramyocardial delivery of UCB-MNCs was evaluated in three distinct 12-week studies utilizing serial cardiac imaging and end-of-study pathology evaluations. PAB reproducibly induced pressure overload leading to chronic right ventricular remodeling including significant myocardial fibrosis and elevation of heart failure biomarkers. High-dose UCB-MNCs (3 million/kg) delivered into the right ventricular myocardium did not cause any detectable safety issues in the context of arrhythmias or abnormal cardiac physiology. In addition, this high-dose treatment compared with placebo controls demonstrated that UCB-MNCs promoted a significant increase in Ki-67-positive cardiomyocytes coupled with an increase in the number of CD31+ endothelium. Furthermore, the incorporation of BrdU-labeled cells within the myocardium confirmed the biological potency of the high-dose UCB-MNC treatment. Finally, the cell-based treatment augmented the physiological adaptation compared with controls with a trend toward increased right ventricular mass within the 12 weeks of the follow-up period. Despite these adaptations, functional changes as measured by echocardiography and magnetic resonance imaging did not demonstrate differences between cohorts in this surgical model system. Therefore, this randomized, double-blinded, placebo-controlled pre-clinical trial establishes the safety of UCB-MNCs delivered via intramyocardial injections in a dysfunctional right ventricle and validates the induction of cardiac proliferation and angiogenesis as transient paracrine mechanisms that may be important to optimize long-term outcomes for surgically repaired congenital heart diseases.
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Affiliation(s)
- Saji Oommen
- Division of Cardiovascular Diseases,
Center for Regenerative Medicine, Mayo Clinic, Rochester, MN, USA
| | - Susana Cantero Peral
- Division of Cardiovascular Diseases,
Center for Regenerative Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Kimberly A. Holst
- Department of Cardiovascular Surgery,
Mayo Clinic, Rochester, MN, USA
| | - Harold M. Burkhart
- Pediatric Cardiothoracic Surgery, The
University of Oklahoma, Oklahoma City, OK, USA
| | | | - Walter K. Kremers
- Biomedical Statistics and Informatics,
Mayo Clinic, Rochester, MN, USA
| | - Emma B. Brandt
- Division of Cardiovascular Diseases,
Center for Regenerative Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Joseph A. Dearani
- Department of Cardiovascular Surgery,
Mayo Clinic, Rochester, MN, USA
| | | | | | - Timothy J. Nelson
- Division of Cardiovascular Diseases,
Center for Regenerative Medicine, Mayo Clinic, Rochester, MN, USA
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