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Finsterer J, Pölzl G. Novel Phenotype of LMNA Variant c.154C>G Affecting Heart, Liver, and Lipid and Iron Metabolism: A Case Report. Cureus 2023; 15:e38860. [PMID: 37303410 PMCID: PMC10256956 DOI: 10.7759/cureus.38860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2023] [Indexed: 06/13/2023] Open
Abstract
Mutations in the LMNA gene cause heterogeneous phenotypes such as myopathy, progeroid syndromes, hereditary neuropathies, cardiomyopathies, or lipodystrophies. A specific LMNA mutation manifesting as dilated cardiomyopathy (dCMP), and iron metabolism disorder has not been reported. The patient is a 50-year-old female with palpitations and fatigue since childhood, hyperlipidemia for 25 years, gastroesophageal reflux for 20 years, arterial hypertension for eight years, and iron deficiency for one year, requiring intravenous iron supplementation. Family history was positive for dCMP, malignant ventricular arrhythmias (MVAs), and sudden cardiac death (SCD). She was diagnosed with dCMP at the age of 49. Genetic workup revealed the variant c.154C>G (p.Leu52Val) in LMNA, which was also found in two female cousins. Because of ventricular tachycardia in the long-term ECG recordings, an implantable cardioverter-defibrillator (ICD) was implanted in addition to antiarrhythmic, antihypertensive, heart failure, and lipid-lowering treatment. With this therapy, the patient remained in stable condition during the one-year follow-up and was able to successfully carry out her job. In summary, this case shows that the variant c.154C>G (p.Leu52Val) in LMNA manifests not only with dCMP, but also with hyperlipidemia, steatosis, gastroesophageal reflux, arterial hypertension, and iron deficiency. Primary prophylaxis with an ICD and additional symptomatic treatment can stabilise the condition and eventually prevent familial SCD.
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Affiliation(s)
- Josef Finsterer
- Neurology, Neurology and Neurophysiology Center, Vienna, AUT
| | - Gerhard Pölzl
- Internal Medicine, Medical University of Innsbruck, Innsbruck, AUT
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Topf A, Mirna M, Bacher N, Paar V, Motloch LJ, Ohnewein B, Larbig R, Grueninger J, Hoppe UC, Lichtenauer M, Pistulli R. Analysis of Selected Cardiovascular Biomarkers in Takotsubo Cardiomyopathy and the Most Frequent Cardiomyopathies. Front Cardiovasc Med 2021; 8:700169. [PMID: 34805296 PMCID: PMC8597641 DOI: 10.3389/fcvm.2021.700169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 09/27/2021] [Indexed: 12/22/2022] Open
Abstract
Introduction: Among the causes of de novo diagnosed cardiomyopathy, Takotsubo cardiomyopathy (TTC) plays a minor role, with an occurrence of 50,000–100,000 cases per annum in the United States. In clinical practice, a differentiation of a TTC toward an ischemic cardiomyopathy (ICMP) or a dilatative cardiomyopathy (DCMP) appears to be challenging, especially in a subacute setting or in atypical types of TTC. Methods: To investigate this issue, we analyzed serum levels of sST2, GDF-15, suPAR, HFABP, and clinical parameters including echocardiography in 51 patients with TTC, 52 patients with ischemic cardiomyopathy (ICMP) and 65 patients with dilated cardiomyopathy (DCMP). Results: sST-2 seemed to be the most promising biomarker for prediction of a TTC in differential diagnosis to an ICMP (AUC: 0.879, p = < 0.001, Cut off values: 12,140.5 pg/ml) or to a DCMP (AUC: 0.881, p = < 0.001, cut off value: 14521.9 pg/ml). GDF-15 evidenced a slightly lower AUC for prediction of a TTC in differential diagnosis to an ICMP (AUC: 0.626, p = 0.028) and to a DCMP (AUC: 0.653, p = 0.007). A differential diagnostic value was found for H-FABP in the prediction of a DCMP compared to TTC patients (AUC: 0.686, p = < 0.001). In propensity score matching for left ventricular ejection fraction, sex, and cardiovascular risk factors, differences in the plasma levels of sST2 and H-FABP in the matched cohort of TTC vs. DCMP remained statistically significant. In the matched cohort of TTC vs. ICMP, differences in sST2 also remained statistically significant Conclusion: As medical therapy, long term prognosis, interval of follow-ups, rehabilitation program and recommendations differ completely between TTC and ICMP/DCMP, biomarkers for differential diagnosis, or rather for confirmation of diagnosis, are warranted in cases of cardiomyopathies with unsure origin. sST-2, GDF-15 and H-FABP might facilitate the classification.
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Affiliation(s)
- Albert Topf
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Moritz Mirna
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Nina Bacher
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Vera Paar
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Lukas J Motloch
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Bernhard Ohnewein
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Robert Larbig
- Devision of Cardiology, Hospital Maria Hilf Moenchengladbach, Moenchengladbach, Germany
| | - Janine Grueninger
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Uta C Hoppe
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Michael Lichtenauer
- Department of Internal Medicine II, Paracelsus Medical University, Salzburg, Austria
| | - Rudin Pistulli
- Devision of Cardiology, University Hospital of Muenster, Muenster, Germany
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Schranz D, Akintuerk H, Esmaeili A, Latus H, Apitz C. Heart failure therapy based on interventricular mechanics and cardio-vascular communications. Cardiovasc Diagn Ther 2021; 11:1080-1088. [PMID: 34527534 DOI: 10.21037/cdt-20-347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/15/2020] [Indexed: 01/10/2023]
Abstract
The heart should not be divided in right and left, whether in health nor in disease. However, the morphological and functional differences between the right and left ventricle should be known and the impact of the ventricle's position considered. Further, the parameters beyond heart rate, contractility, pre- and afterload guaranteeing a sufficient systemic cardiac output have to be integrated in therapeutic measures; preferentially the influence of interventricular mechanics. Despite of recent developments of specific drug therapies, heart failure is associated with a high rate of morbidity and mortality in children. During the progression of heart failure, pulmonary vascular disease is the consequence or the reason for further failing. Clinical symptoms are associated with congestion and low cardiac output at rest or exercise. Improved understanding of the pathophysiological mechanisms particularly of ventricular failure has resulted in the development of innovative therapies that target atrial/ventricular/arterial interactions. Recent advances in interventional and surgical approaches provide promising new strategies to deal with right and left ventricular deterioration. These techniques may delay listing for heart and (heart-) lung transplantation or even make redundant in individual cases. The beneficial effects of these ventricular interaction strategies are mainly based on the mechanics of the interventricular septum and improvement of systolic and diastolic ventricular performance.
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Affiliation(s)
- Dietmar Schranz
- Pediatric Heart Center, Justus-Liebig University, Giessen, Germany.,Pediatric Cardiology, University Clinic Frankfurt, Frankfurt, Germany
| | - Hakan Akintuerk
- Pediatric Heart Center, Justus-Liebig University, Giessen, Germany
| | - Anoosh Esmaeili
- Pediatric Cardiology, University Clinic Frankfurt, Frankfurt, Germany
| | - Heiner Latus
- Pediatric Cardiology, German Heart Center, Munich, Germany
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Bauer A, Khalil M, Schmidt D, Recla S, Bauer J, Esmaeili A, Penford G, Akintuerk H, Schranz D. Transcatheter left atrial decompression in patients with dilated cardiomyopathy: bridging to cardiac transplantation or recovery. Cardiol Young 2019; 29:355-62. [PMID: 30806346 DOI: 10.1017/S1047951118002433] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Left atrial congestion results from backward failure in dilated cardiomyopathy. We aimed to evaluate feasibility and efficacy of percutaneous atrioseptostomy to create a restrictive atrial septum defect in management of dilated cardiomyopathy.Methods and resultsFrom June 2009 to December 2016, 27 interventions comprised left atria decompressions in 22 dilated cardiomyopathy patients; 9 females; age: 24 days to 36.9 years; weight: 3-50 kg; NYHA-/Ross class IV (n=16). Mean left ventricular ejection fraction was 21.5±9.7% and brain natriuretic peptide was 2291±1992 pg/ml. Dilated cardiomyopathy was classified as chronic (n=9); acute (n=1) myocarditis; idiopathic (n=5); left ventricular non-compaction (n=4); mitochondriopathy, pacemaker induced, and arrhythmogenic (n=3). Atrioseptostomy was concomitantly performed with myocardial biopsies 6.5 days (±11.7) after admission (n=11). Trans-septal puncture was used in 18 patients; foramen ovale dilatation was done in four patients. Mean balloon size was 11 mm (range 7-14 mm); total procedure time was 133±38 minutes. No procedural complications were observed. Mean left atrial pressure decreased from 15.8±6.8 to 12.2±4.8 mmHg (p=0.005), left/right atrial pressure gradient from 9.6±5.6 to 5±3.5 mmHg; brain natriuretic peptide (n=18) decreased from 1968±1606 to 830±1083 pg/ml (p=0.01). One patient unsuitable for heart transplantation died at home despite additionally performed pulmonary artery banding and three further left atrial decompressions; five patients were bridged to transplantation, two died afterwards. Functional recovery occurred in the remaining 14 patients and in six after additional pulmonary artery banding. No patient required assist device. CONCLUSIONS Percutaneous left atrial decompression is an age-independent, effective palliation treating patients with dilated cardiomyopathy.
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Fujita J, Freire P, Coarfa C, Benham AL, Gunaratne P, Schneider MD, Dejosez M, Zwaka TP. Ronin Governs Early Heart Development by Controlling Core Gene Expression Programs. Cell Rep 2018; 21:1562-1573. [PMID: 29117561 PMCID: PMC5695914 DOI: 10.1016/j.celrep.2017.10.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 09/01/2017] [Accepted: 10/10/2017] [Indexed: 12/22/2022] Open
Abstract
Ronin (THAP11), a DNA-binding protein that evolved from a primordial DNA transposon by molecular domestication, recognizes a hyperconserved promoter sequence to control developmentally and metabolically essential genes in pluripotent stem cells. However, it remains unclear whether Ronin or related THAP proteins perform similar functions in development. Here, we present evidence that Ronin functions within the nascent heart as it arises from the mesoderm and forms a four-chambered organ. We show that Ronin is vital for cardiogenesis during midgestation by controlling a set of critical genes. The activity of Ronin coincided with the recruitment of its cofactor, Hcf-1, and the elevation of H3K4me3 levels at specific target genes, suggesting the involvement of an epigenetic mechanism. On the strength of these findings, we propose that Ronin activity during cardiogenesis offers a template to understand how important gene programs are sustained across different cell types within a developing organ such as the heart. Ronin displays complex expression patterns during embryogenesis Ronin is critical for heart growth Ronin regulates genetic growth programs Ronin binding influences H3K4me3 levels at target genes
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Affiliation(s)
- Jun Fujita
- Department of Cardiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Pablo Freire
- Department of Cellular and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Cristian Coarfa
- Molecular and Cellular Biology Department, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ashley L Benham
- Stem Cell Engineering Department, Texas Heart Institute at St. Luke's Episcopal Hospital, Houston, TX 77225, USA
| | - Preethi Gunaratne
- Department of Biology and Biochemistry, University of Houston, Houston, TX 77204, USA
| | - Michael D Schneider
- British Heart Foundation Centre of Research Excellence, National Heart and Lung Institute, Imperial College London, London SW7 2AZ, UK
| | - Marion Dejosez
- Black Family Stem Cell Institute and Department of Cell, Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Thomas P Zwaka
- Black Family Stem Cell Institute and Department of Cell, Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Abstract
Background While heart transplantation has gained recognition as the gold standard therapy for advanced heart failure, the scarcity of donor organs has become an important concern. The evolution of surgical alternatives such as ventricular assist devices (VADs), allow for recovery of the myocardium and ensure patient survival until heart transplantation becomes possible. This report elaborates the role of VADs as a bridge to heart transplantation in infants and children (≤18 years old) with end-stage heart failure. Methods A retrospective review of the medical records of 201 heart transplant recipients between May 1986 and September 2014 identified 78 children [38.8%; mean age 7.2 (7.8±6.0) years old; IQR: 2.6-11.8 years] with advanced heart failure who were supported with a VAD [left VAD (LVAD) =21; biventricular VAD (BVAD) =57] as a bridge to heart transplantation. Fourteen (17.9%) patients were less than 1 year old; 15 (19.2%) children had a cardiac arrest and underwent cardiopulmonary resuscitation, with 7 of these patients also requiring extracorporeal membrane oxygenation (ECMO) support prior to implantation of a VAD. The aetiology of heart failure was primarily cardiomyopathy (dilative, restrictive from endocardial fibrosis, idiopathic or toxic-induced), reported in 56 (71.8%) patients. The VADs employed were primarily Berlin Heart EXCOR® (n=63), HeartWare (n=13), Berlin Heart INCOR® (n=1), and Toyobo (n=1). Results Mean duration of VAD support was 59 (133.37±191.57) days (range, 1-945 days; IQR: 23-133 days) before a donor heart became available. The primary complication encountered while patients were being bridged to transplant was mediastinal bleeding (7.8%). The main indication for pump exchanges was thrombus formation in the valves. There was no incidence of technical failure of the blood pump or driving system components. Skin infections around the cannulae occurred in 2.5%. Adverse neurological symptoms (thromboembolism 11.1%, cerebral haemorrhage 3.6%) that occurred did not have any permanent neurological sequelae that could be detected on clinical examination in this study. Mean duration of follow-up was 9.4 (10.3±7.6) years (IQR: 3.74-15.14 years). Cumulative survival rates of patients bridged to transplantation with VAD were 93.6%±2.8%, 84.6%±4.1%, 79.1%±4.7%, 63.8%±6.2%, 61.6%±7.1%, and 52.1%±9.3% at 30 days, 1, 5, 10, 15 and 20 years, respectively. There was no statistically significant difference (P=0.79) in survival rates of patients bridged to heart transplantation with VAD compared to those who underwent primary heart transplantation. Post-transplant survival rates stratified according to the type of VAD implanted and number of ventricles supported were not statistically different (P=0.93 and 0.73, respectively). In addition, post-transplant survival rates were not significantly different when age, gender and diagnosis were adjusted for. Furthermore, no statistically significant difference was found when post-transplant survival rates of children who had episodes of rejection were compared to those who did not have episodes of rejection. Conclusions The results in this series demonstrate that VADs satisfactorily support paediatric patients with advanced heart failure from a variety of aetiologies until heart transplantation. The data further suggests that patients bridged with VADs have comparable long-term post-transplant survival as those undergoing primary heart transplantation.
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Affiliation(s)
- Roland Hetzer
- Department of Cardiothoracic and Vascular Surgery, Cardio Centrum Berlin, Berlin, Germany
| | | | - Eva Maria Delmo Walter
- Department of Cardiac, Thoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
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Szibor M, Pöling J, Warnecke H, Kubin T, Braun T. Remodeling and dedifferentiation of adult cardiomyocytes during disease and regeneration. Cell Mol Life Sci 2014; 71:1907-16. [PMID: 24322910 PMCID: PMC11113405 DOI: 10.1007/s00018-013-1535-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 11/21/2013] [Accepted: 11/25/2013] [Indexed: 12/20/2022]
Abstract
Cardiomyocytes continuously generate the contractile force to circulate blood through the body. Imbalances in contractile performance or energy supply cause adaptive responses of the heart resulting in adverse rearrangement of regular structures, which in turn might lead to heart failure. At the cellular level, cardiomyocyte remodeling includes (1) restructuring of the contractile apparatus; (2) rearrangement of the cytoskeleton; and (3) changes in energy metabolism. Dedifferentiation represents a key feature of cardiomyocyte remodeling. It is characterized by reciprocal changes in the expression pattern of "mature" and "immature" cardiomyocyte-specific genes. Dedifferentiation may enable cardiomyocytes to cope with hypoxic stress by disassembly of the energy demanding contractile machinery and by reduction of the cellular energy demand. Dedifferentiation during myocardial repair might provide cardiomyocytes with additional plasticity, enabling survival under hypoxic conditions and increasing the propensity to enter the cell cycle. Although dedifferentiation of cardiomyocytes has been described during tissue regeneration in zebrafish and newts, little is known about corresponding mechanisms and regulatory circuits in mammals. The recent finding that the cytokine oncostatin M (OSM) is pivotal for cardiomyocyte dedifferentiation and exerts strong protective effects during myocardial infarction highlights the role of cytokines as potent stimulators of cardiac remodeling. Here, we summarize the current knowledge about transient dedifferentiation of cardiomyocytes in the context of myocardial remodeling, and propose a model for the role of OSM in this process.
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Affiliation(s)
- Marten Szibor
- Max-Planck-Institute for Heart and Lung Research, Ludwigstrasse 43, 61231 Bad Nauheim, Germany
- Research Program of Molecular Neurology, University of Helsinki, Helsinki, Finland
| | - Jochen Pöling
- Max-Planck-Institute for Heart and Lung Research, Ludwigstrasse 43, 61231 Bad Nauheim, Germany
- Department of Cardiac Surgery, Schüchtermann Clinic, Bad Rothenfelde, Germany
| | - Henning Warnecke
- Department of Cardiac Surgery, Schüchtermann Clinic, Bad Rothenfelde, Germany
| | - Thomas Kubin
- Max-Planck-Institute for Heart and Lung Research, Ludwigstrasse 43, 61231 Bad Nauheim, Germany
| | - Thomas Braun
- Max-Planck-Institute for Heart and Lung Research, Ludwigstrasse 43, 61231 Bad Nauheim, Germany
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Chicco D, Taddio A, Sinagra G, Di Lenarda A, Ferrara F, Moretti M, Martelossi S, Di Toro N, Ventura A, Not T. Speeding up coeliac disease diagnosis in cardiological settings. Arch Med Sci 2010; 6:728-32. [PMID: 22419932 PMCID: PMC3298342 DOI: 10.5114/aoms.2010.17088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 07/27/2009] [Accepted: 09/27/2009] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION High prevalence of coeliac disease (CD) has been reported among patients with idiopathic dilated cardiomyopathy (DCM). We evaluated the feasibility and diagnostic accuracy of screening for CD by rapid test of anti-transglutaminase antibodies in the cardiology outpatients' clinic. MATERIAL AND METHODS We screened the blood samples of 104 patients with DCM, 44 of their first-degree relatives, 63 diseased controls and 101 healthy controls for the presence of anti-transglutaminase antibodies in a drop of whole blood using a rapid assay. This test was compared to the enzyme-linked immunosorbent assay and the anti-endomysium antibody test. RESULTS Our rapid test was positive in three (2.9%) DCM patients, in one (2%) relative and in one (1%) healthy control. These subjects were positive at both control assays. Two DCM patients had iron-deficient anaemia. The healthy relative was asymptomatic, while the healthy control experienced extreme asthenia. The relative refused intestinal biopsy, while the others showed histological evidence of CD. During the gluten-free diet, the patient with the worst left ventricular ejection fraction (LVEF) underwent heart transplant, and LVEF values improved in the other two. Anaemia and tiredness resolved in all patients. CONCLUSION Early detection of CD in a cardiological setting allows prompt treatment with a gluten-free diet of gluten-dependent complaints with potential benefits for the course of DCM.
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Affiliation(s)
- Daniela Chicco
- Cardiovascular Department, Azienda Ospedaliero-Universitaria di Trieste, Trieste, Italy
| | - Andrea Taddio
- Department of Reproductive and Development Science, University of Trieste, Institute of Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Gianfranc Sinagra
- Cardiovascular Department, Azienda Ospedaliero-Universitaria di Trieste, Trieste, Italy
| | - Andrea Di Lenarda
- Cardiovascular Department, Azienda Ospedaliero-Universitaria di Trieste, Trieste, Italy
| | - Fortunato Ferrara
- Department of Reproductive and Development Science, University of Trieste, Institute of Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Michele Moretti
- Cardiovascular Department, Azienda Ospedaliero-Universitaria di Trieste, Trieste, Italy
| | - Stefano Martelossi
- Department of Reproductive and Development Science, University of Trieste, Institute of Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Nicola Di Toro
- Department of Reproductive and Development Science, University of Trieste, Institute of Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Alessandro Ventura
- Department of Reproductive and Development Science, University of Trieste, Institute of Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Tarcisio Not
- Department of Reproductive and Development Science, University of Trieste, Institute of Child Health IRCCS “Burlo Garofolo”, Trieste, Italy
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