34 results on '"Paranon, S."'
Search Results
2. Double discordance
- Author
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Paranon, S., primary and Acar, P., additional
- Published
- 2008
- Full Text
- View/download PDF
3. [A rare association of double discordance with aortic arch anomalies: value of multislice CT scan]
- Author
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Bassil R, Chabbert V, Taktak A, Jl, Rittié, Yves DULAC, Paranon S, Rumeau P, and Acar P
- Subjects
Male ,Echocardiography ,Humans ,Infant ,Aorta, Thoracic ,Pulmonary Artery ,Tomography, X-Ray Computed ,Tracheal Stenosis ,Respiratory Sounds - Abstract
The authors report the case of a 14 month old infant admitted for intermittent stridor. Routine echocardiography showed atrioventricular and ventriculo-arterial discordance with an intact septum and situs solitus with levocardia. Multislice CT scan showed tracheal compression due to a Neuhauser anomaly of the aortic arches. The paucity of symptoms led to surgical abstention.
- Published
- 2006
4. [New approach to perimembranous ventricular septal defect by real-time 3D echocardiography]
- Author
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Bassil R, Acar P, Abadir S, Aggoun Y, Yves DULAC, Taktak A, Rumeau P, and Paranon S
- Subjects
Heart Septal Defects, Ventricular ,Computer Systems ,Child, Preschool ,Echocardiography, Three-Dimensional ,Infant, Newborn ,Humans ,Infant ,Prospective Studies ,Sensitivity and Specificity - Abstract
Perimembranous ventricular septal defects (VSD) have a close anatomical relationship to the aortic and tricuspid valve which may make percutaneous closure difficult. The authors' objective was to study the anatomy of perimembranous VSD by real-time 3D echocardiography. Fourteen patients aged 1 day to 3 years (mean 3 months) underwent transthoracic 2D and 3D echocardiography. Two patients (10 kg) underwent closure of the perimembranous VSD with an Amplatzer occluder. The other 12 patients were operated (surgical closure in 11 and circling suture with resorbable thread in 1 patient). The 3D echocardiography showed variations in the geometry of the perimembranous VSD (eccentric, oval, cleft). The maximal diameter of the septal defect by 3D echocardiography was on average 2 mm greater than the diameter by 2D echocardiography. The 3D echo enabled visualisation of the close relationship of the septal tricuspid leaflet, the aortic valve and the perimembranous VSD, showing the mechanism of its closure and the associated aortic regurgitant lesions. The profile of the prosthesis implanted percutaneously was well shown in the different 3D views. The authors conclude that real-time 3D echocardiography is a technique which allows accurate anatomic description of perimembranous VSD. As a complement to classical 2D methods, it gives a better appreciation of the maximal diameter of the septal defect and of its relationship to the aortic and tricuspid valves.
- Published
- 2006
5. Physiopathologie des shunts gauche-droite
- Author
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Paranon, S., primary and Acar, P., additional
- Published
- 2011
- Full Text
- View/download PDF
6. Le shunt circulaire : complication de la maladie d’Ebstein de forme néonatale
- Author
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Paranon, S., primary, Plat-Wilson, G., additional, Marcoux, M.-O., additional, and Acar, P., additional
- Published
- 2010
- Full Text
- View/download PDF
7. Myocardite fœtale sans trouble conductif chez une femme lupique avec anticorps anti-SSA/Ro et anti-SSB/La d’évolution favorable
- Author
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De La Villeon, C.-G., primary, Dulac, Y., additional, Ohanessian, G., additional, Ziani, A., additional, Paranon, S., additional, and Acar, P., additional
- Published
- 2010
- Full Text
- View/download PDF
8. Endocardite à Candida albicans sur cerclage de l’artère pulmonaire
- Author
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Talvard, M., primary, Paranon, S., additional, Dulac, Y., additional, Mansir, T., additional, Kreitmann, B., additional, and Acar, P., additional
- Published
- 2009
- Full Text
- View/download PDF
9. SFP-P213 – Néonatalogie – Infarctus du myocarde néonatal à propos d’un cas chez un nouveau-né de mère diabétique
- Author
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Abbal, J., primary, Paranon, S., additional, Brierre, G., additional, Dulac, Y., additional, Casper, C., additional, and Acar, P., additional
- Published
- 2008
- Full Text
- View/download PDF
10. Ebstein's anomaly of the tricuspid valve: from fetus to adult
- Author
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Paranon, S., primary and Acar, P., additional
- Published
- 2008
- Full Text
- View/download PDF
11. Volumineuse tumeur cardiaque révélée par un trouble du rythme ventriculaire chez un nourrisson de 18 mois
- Author
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Dulac, Y., primary, Plat, G., additional, Taktak, A., additional, Bassil, R., additional, Zabalawi, A., additional, Paranon, S., additional, Rumeau, P., additional, Marcoux, M.-O., additional, and Acar, P., additional
- Published
- 2006
- Full Text
- View/download PDF
12. Tamponnade néonatale par hernie de Morgagni
- Author
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S.Breinig, Paranon, S., Le Mandat, A., Galinier, P., Dulac, Y., and Acar, P.
- Subjects
- *
DIAPHRAGMATIC hernia , *NEONATAL diseases , *CASE studies , *ECHOCARDIOGRAPHY , *SURGICAL anastomosis , *CARDIAC tamponade , *TOMOGRAPHY - Abstract
Summary: Morgagni hernia is a rare malformation (3% of diaphragmatic hernias). This hernia is usually asymptomatic in children. We report on a case revealed by an unusual complication. Severe cyanosis was due to right-to-left atrial shunt through the foramen ovale assessed by 2D echocardiography. Diagnosis of the Morgagni hernia was made with CT scan. The intrathoracic liver compressed the right chambers of the heart causing tamponade. Cardiac compression was reversed after surgery and replacement of the liver in the abdomen. Six months after the surgery, the infant was symptom-free with normal size right chambers of the heart. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
13. Myocardial Infarction in a newborn from a diabetic mother.
- Author
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Abbal J, Paranon S, Brierre G, Dulac Y, Casper C, and Acar P
- Published
- 2010
- Full Text
- View/download PDF
14. Endocardite àCandida albicans sur cerclage de l’artère pulmonaire
- Author
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Talvard, M., Paranon, S., Dulac, Y., Mansir, T., Kreitmann, B., and Acar, P.
- Subjects
- *
CANDIDA albicans , *ENDOCARDITIS , *PULMONARY artery , *BANDAGES & bandaging , *INFANT diseases , *VENTRICULAR septal defects , *CARDIAC surgery , *SURGICAL complications , *ARTIFICIAL blood circulation - Abstract
Summary: Endocarditis is uncommon in infants and is exceptionally related to Candida albicans on pulmonary banding. We report on a case in a 7-month-old infant who had pulmonary artery banding for a ventricular septal defect and who presented with candidal endocarditis. Banding was chosen because of the patient''s poor trophic and unstable status, which could be risky for surgery involving extracorporeal circulation. A few weeks after the banding, the patient developed systemic Candida infection, which was treated successfully. At 7 months, cardiac failure appeared without fever or inflammatory signs. Cardiac echography showed that the banding was not protective as well as a hyperechogenic image on the pulmonary bifurcation. The angioscan showed a hypodense thrombus. Emergency surgery was performed consisting of pulmonary artery exploration, thrombectomy, and ventricular septal defect closure. The exploration showed a pulmonary artery perforation caused by the infected pseudoaneurysm and the migration of the banding into the pulmonary artery. The anatomopathologic analysis of the vegetation identified multisensitive Candida albicans. After surgery and prolonged antifungal treatment, progression was satisfactory. [Copyright &y& Elsevier]
- Published
- 2009
- Full Text
- View/download PDF
15. Is a prophylactic treatment by erythropoietin relevant to reduce red blood cell transfusion in the pediatric intensive care unit?
- Author
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Liet J, Paranon S, Baraton L, Dejode J, and Rozé J
- Published
- 2006
- Full Text
- View/download PDF
16. [Arrhythmia follow-up of children and adolescents with neuromuscular diseases]
- Author
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Dulac Y, Wahbi K, Dg, Latcu, Philippe Maury, Cances C, Cintas P, Paranon S, Duboc D, and Acar P
- Subjects
Adolescent ,Age Factors ,Humans ,Arrhythmias, Cardiac ,Neuromuscular Diseases ,Child ,Muscular Dystrophies ,Follow-Up Studies - Abstract
Much progress has been made over the last few years in understanding and classifying neuromuscular diseases. The heart is frequently affected but often in a dissociated manner with respect to the neuromuscular signs although it has a significant impact on the prognosis. In children and adolescents, the dystrophinopathies, especially Duchenne's muscular dystrophy, are the principal problems but the mild arrhythmic events observed seem to be related to left ventricular dysfunction. On the other hand, in myotonic dystrophies (Steinert's disease), ventricular arrhythmias or conduction defects may appear at an early stage of the disease with serious consequences justifying appropriate follow-up and invasive preventive measures. Emery Dreifuss X-linked dystrophy and other laminopathies are rare conditions but are associated with sudden death and cardiomyopathies of the young adult. Specialised cardiological follow-up is justified in childhood from the time of diagnosis. Medication or implantable electric devices may be justified before the end of the second decade of life. Progressive infra-hisian conduction defects have also been reported in Kearns-Sayre oculo-pharyngeal myopathy. Prospective studies are required at this age to determine the natural history of these pathologies that are probably under diagnosed. The present recommendations, which are based mainly on data from adult series, could then be adapted for younger patients.
17. [Unusual outcome of mitral valve infectious endocarditis in a premature infant]
- Author
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Zabalawi A, Taktak A, Bassil R, Paranon S, Ghez O, Kreitmann B, Yves DULAC, and Acar P
- Subjects
Staphylococcus aureus ,Treatment Outcome ,Echocardiography ,Infant, Newborn ,Humans ,Mitral Valve ,Mitral Valve Insufficiency ,Drug Therapy, Combination ,Endocarditis, Bacterial ,Staphylococcal Infections ,Infant, Premature ,Platelet Aggregation Inhibitors ,Anti-Bacterial Agents - Abstract
The authors report a case of Staphylococcus Aureus infectious endocarditis in a premature baby. Echocardiography on the 8th day of life showed a large vegetation on the anterior mitral leaflet without significant regurgitation. Intravenous antibiotics and platelet antiaggregant therapy were given. At three weeks of age the vegetation split into two, one part attached to the foramen ovale and the other to the anterior mitral leaflet. At one month, the development of severe mitral regurgitation led to surgical valvuloplasty in a 2 kg neonate, the vegetation on the foramen ovale having spontaneously fragmented. The ablation of the mitral vegetation associated with commissuroplasty reduced the mitral regurgitation. At 3 months after surgery, the child was asymptomatic with a minimal mitral regurgitation.
18. [Evaluation of left ventricular diastolic function in children by doppler tissue imaging]
- Author
-
Rumeau P, Acar P, Paranon S, Bassil R, Cournot M, Yves DULAC, Guitton J, and Latcu G
- Subjects
Adult ,Male ,Adolescent ,Heart Ventricles ,Age Factors ,Infant, Newborn ,Infant ,Myocardial Contraction ,Echocardiography, Doppler ,Ventricular Function, Left ,Diastole ,Child, Preschool ,Body Size ,Feasibility Studies ,Humans ,Mitral Valve ,Female ,Child - Abstract
Left ventricular diastolic function may change at an early stage in cardiac disease. It is often difficult to assess in daily practice. The use of Doppler tissue imaging at the annulus has been validated in adults. This method is little used in paediatrics and the physiological norms have not been established in children. Forty three children aged 7 days to 241 months were referred for a cardiological opinion with normal echocardiogrammes were included. Myocardial velocities were measured by Doppler tissue imaging of the left and right ventricular walls at different moments of the cardiac cycle in the apical 4-chamber view. A complete study was possible in 39 cases (91%). Doppler tissue imaging was not performed in one case and was incomplete on the right ventricle in 3 children. The median of the lateral mitral tissue E wave (Ea) was 16.3 cm/s and that of the right ventricle was 15.8 cm/s with a tissue Ea/Aa ratio of 2.6 and 1.6 respectively. The median of the tissue S waves was 8.8 cm/s for the left ventricular lateral wall and 13.3 cm/s for the right ventricular lateral wall. The E/Ea ratio of the left ventricular lateral wall was 5.9. Although the velocities of the left ventricular lateral wall were not related to the children's' age or size, the correlations between the E/Ea ratio and age and size were statistically significant. The myocardial velocities of the neonate were characteristic and different to those of the older paediatric population (slower Ea and S waves, faster Aa with a higher E/Ea ratio). The authors conclude that Doppler tissue imaging is feasible in clinical paediatric cardiology. Comparative studies with populations with cardiac disease are necessary to determine pathological values.
19. Percutaneous closure of a left superior vena cava draining directly into the left atrium in a child.
- Author
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Tampere L, Paranon S, and Séguéla PE
- Subjects
- Diagnosis, Differential, Echocardiography, Follow-Up Studies, Humans, Infant, Newborn, Male, Phlebography, Tomography, X-Ray Computed, Vascular Malformations diagnosis, Vena Cava, Superior abnormalities, Catheterization, Central Venous methods, Heart Atria abnormalities, Heart Defects, Congenital diagnosis, Vascular Malformations surgery, Vascular Surgical Procedures methods, Vena Cava, Superior surgery
- Published
- 2012
- Full Text
- View/download PDF
20. Severe global inflammatory involvement of ocular segments and optic disc swelling in a 12-year-old girl with Kawasaki disease.
- Author
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Grouteau E, Debuisson C, Brochard K, Paranon S, Lesage Beaudon C, Pajot C, and Claudet I
- Subjects
- Child, Female, Humans, Keratitis diagnosis, Optic Disk pathology, Vision Disorders diagnosis, Visual Acuity, Eye Diseases diagnosis, Mucocutaneous Lymph Node Syndrome diagnosis, Papilledema diagnosis, Uveitis, Anterior diagnosis, Vitreous Body pathology
- Abstract
Purpose: Pediatric Kawasaki ocular involvement is dominated by bulbar conjunctival injection and mild, self-limited anterior uveitis. Posterior segment involvement is rare., Methods/results: Case Report. Despite early efficient treatment including aspirin and intravenous immunoglobulins, a 12-year-old girl developed a severe bilateral global inflammatory ocular involvement including punctuated keratitis, retrodescemetic precipitates, anterior uveitis, vitritis, and bilateral optic disc swelling with papillitis., Discussion: This is the first description of severe bilateral global inflammatory involvement of the eyes in Kawasaki disease (KD). Usually subclinical and self-limited, eye involvement in KD can lead to severe visual impairment., Conclusions: Inflammation of both anterior and posterior segments does not seem to respond to KD-specific treatment and could justify a specific ophthalmologic therapeutic approach.
- Published
- 2011
- Full Text
- View/download PDF
21. [Circular shunting of blood: a complication of neonatal Ebstein anomaly].
- Author
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Paranon S, Plat-Wilson G, Marcoux MO, and Acar P
- Subjects
- Ductus Arteriosus, Patent diagnostic imaging, Ebstein Anomaly diagnostic imaging, Echocardiography, Doppler, Edema, Cardiac etiology, Female, Humans, Infant, Newborn, Pregnancy, Prenatal Diagnosis, Pulmonary Atresia physiopathology, Severity of Illness Index, Tricuspid Valve physiopathology, Ductus Arteriosus, Patent physiopathology, Ebstein Anomaly physiopathology, Hemodynamics, Ultrasonography, Prenatal
- Abstract
We report a severe neonatal presentation of Ebstein anomaly with homodynamic aggravation at birth attributed to patent ductus arteriosus and circular shunt. Prenatal diagnosis of Ebstein anomaly of the tricuspid valve with functional pulmonary atresia was made at 37 weeks gestation by fetal two- and three-dimensional echocardiography. A cesarean section was performed in view of poor fetal tolerance. The newborn was born with hydrops and multivisceral failure. A post-natal echocardiography demonstrated a left-to-right shunt across the patent ductus arteriosus and functional pulmonary atresia with severe pulmonary insufficiency with absent forward flow. This created a circular shunt, where blood flowed through the ductus to the pulmonary arteries, retrograde through the pulmonary artery and Ebstein valve, across the patent foramen ovale and out the aorta. Prostaglandin E1 infusion was stopped, resulting in clinical and echocardiographic improvement. The management of the phenomenon of a circular shunt across a patent ductus arteriosus with Ebstein malformation involves promoting early ductal closure by stopping prostaglandin therapy., (Copyright © 2010 Elsevier Masson SAS. All rights reserved.)
- Published
- 2010
- Full Text
- View/download PDF
22. [Fetal myocarditis associated with maternal anti-Ro and anti-La antibodies in the absence of atrioventricular block with good outcome].
- Author
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De La Villeon CG, Dulac Y, Ohanessian G, Ziani A, Paranon S, and Acar P
- Subjects
- Adult, Anti-Inflammatory Agents therapeutic use, Atrioventricular Block, Child, Preschool, Echocardiography methods, Female, Fetal Diseases, Fetal Heart diagnostic imaging, Humans, Myocarditis drug therapy, Myocarditis immunology, Pregnancy, Treatment Outcome, SS-B Antigen, Antibodies, Antinuclear immunology, Autoantigens immunology, Dexamethasone therapeutic use, Myocarditis embryology, Ribonucleoproteins immunology
- Abstract
We report a case of fetal myocarditis without conductive abnormality in a pregnant woman with anti-Ro/La antibodies. Fetal echocardiography showed myocarditis with ventricular and valvular hyperechogenicity, which was confirmed by postnatal transthoracic echography. Treatment with dexamethasone (4 mg/day) was started in the 22nd week of gestation. The outcome was good, with the child remaining asymptomatic 2 years later. This observation describes one of the rare forms of fetal myocarditis with favorable outcome., (Copyright © 2010 Elsevier Masson SAS. All rights reserved.)
- Published
- 2010
- Full Text
- View/download PDF
23. [Morgagni hernia causing cardiac tamponade].
- Author
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S Breinig, Paranon S, Le Mandat A, Galinier P, Dulac Y, and Acar P
- Subjects
- Apgar Score, Cardiac Tamponade diagnostic imaging, Cardiac Tamponade etiology, Cardiac Tamponade surgery, Cyanosis etiology, Echocardiography, Female, Hernia, Diaphragmatic complications, Hernia, Diaphragmatic diagnostic imaging, Hernia, Diaphragmatic surgery, Humans, Infant, Newborn, Liver abnormalities, Liver surgery, Radiography, Treatment Outcome, Hernia, Diaphragmatic diagnosis
- Abstract
Morgagni hernia is a rare malformation (3% of diaphragmatic hernias). This hernia is usually asymptomatic in children. We report on a case revealed by an unusual complication. Severe cyanosis was due to right-to-left atrial shunt through the foramen ovale assessed by 2D echocardiography. Diagnosis of the Morgagni hernia was made with CT scan. The intrathoracic liver compressed the right chambers of the heart causing tamponade. Cardiac compression was reversed after surgery and replacement of the liver in the abdomen. Six months after the surgery, the infant was symptom-free with normal size right chambers of the heart., (Copyright © 2010 Elsevier Masson SAS. All rights reserved.)
- Published
- 2010
- Full Text
- View/download PDF
24. [Candida albicans endocarditis after pulmonary artery banding].
- Author
-
Talvard M, Paranon S, Dulac Y, Mansir T, Kreitmann B, and Acar P
- Subjects
- Administration, Oral, Aneurysm, False surgery, Aneurysm, Infected surgery, Antifungal Agents administration & dosage, Candidiasis surgery, Caspofungin, Echinocandins administration & dosage, Echocardiography, Endocarditis surgery, Fluconazole administration & dosage, Foreign-Body Migration diagnosis, Foreign-Body Migration surgery, Humans, Infant, Infusions, Intravenous, Lipopeptides, Male, Postoperative Care, Postoperative Complications surgery, Reoperation, Thrombectomy, Aneurysm, False diagnosis, Aneurysm, Infected diagnosis, Candidiasis diagnosis, Endocarditis diagnosis, Heart Septal Defects, Ventricular surgery, Postoperative Complications diagnosis, Pulmonary Artery surgery
- Abstract
Endocarditis is uncommon in infants and is exceptionally related to Candida albicans on pulmonary banding. We report on a case in a 7-month-old infant who had pulmonary artery banding for a ventricular septal defect and who presented with candidal endocarditis. Banding was chosen because of the patient's poor trophic and unstable status, which could be risky for surgery involving extracorporeal circulation. A few weeks after the banding, the patient developed systemic Candida infection, which was treated successfully. At 7 months, cardiac failure appeared without fever or inflammatory signs. Cardiac echography showed that the banding was not protective as well as a hyperechogenic image on the pulmonary bifurcation. The angioscan showed a hypodense thrombus. Emergency surgery was performed consisting of pulmonary artery exploration, thrombectomy, and ventricular septal defect closure. The exploration showed a pulmonary artery perforation caused by the infected pseudoaneurysm and the migration of the banding into the pulmonary artery. The anatomopathologic analysis of the vegetation identified multisensitive Candida albicans. After surgery and prolonged antifungal treatment, progression was satisfactory.
- Published
- 2009
- Full Text
- View/download PDF
25. Assessment of proximal isovelocity surface area (PISA) shape using three-dimensional echocardiography in a paediatric population with mitral regurgitation or ventricular shunt.
- Author
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Ziani AB, Latcu DG, Abadir S, Paranon S, Dulac Y, Guerrero F, and Acar P
- Subjects
- Adolescent, Child, Child, Preschool, Heart Defects, Congenital physiopathology, Humans, Image Interpretation, Computer-Assisted, Infant, Mitral Valve Insufficiency physiopathology, Models, Cardiovascular, Observer Variation, Predictive Value of Tests, Reproducibility of Results, Ventricular Function, Young Adult, Echocardiography, Doppler, Color, Echocardiography, Three-Dimensional, Heart Defects, Congenital diagnostic imaging, Mitral Valve Insufficiency diagnostic imaging
- Abstract
Background: The proximal isovelocity surface area (PISA) method is validated to quantify mitral regurgitation (MR) and ventricular shunt (VS). However, the two-dimensional echocardiography (2DE) PISA method assumes a hemispherical distribution of velocity factors proximal to the MR or VS orifice., Aim: To assess the PISA shape by three-dimensional echocardiography (3DE) in a paediatric population with MR or VS. According to the true PISA shape, we suggest different models to calculate the MR or VS volume by the 3DE PISA method., Methods: Thirty-one paediatric patients (aged 1month to 20years, median 69months) were included: 17 had MR and 14 had VS. The orifice area and volume of MR and VS were evaluated by 2DE. 3DE acquired the entire PISA volume at orifice level. The PISA shape was estimated according to three diameters as being hemispherical, prolate hemispheroid, oblate hemispheroid and hemiellipsoid., Results: Data from 28patients were analysed. The PISA shape was variable: hemispherical, 11%; prolate hemispheroid, 43%; oblate hemispheroid, 32%; hemiellipsoid, 14%. Oblate hemispheroids occurred more frequently in the MR group (47%), whereas prolate hemispheroids occurred more frequently in the VS group (62%); hemispheres were scarce in both groups (10%). The mean MR or VS orifices and volumes measured by 2DE and 3DE were significantly different (0.123cm(2) versus 0.094cm(2) and 13.2mL versus 10.1mL, respectively; p=0.019)., Conclusions: 3DE describes the true surface of the PISA shape. In a paediatric population with MR or VS, the PISA is rarely hemispherical but is more often prolate or oblate hemispheroid.
- Published
- 2009
- Full Text
- View/download PDF
26. Quantification of mitral-valve regurgitation in a paediatric population by real-time three-dimensional echocardiography.
- Author
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Gabriel Latcu D, Paranon S, Bongard V, Bassil-Eter R, Grosjean-Guitton J, Dulac Y, and Acar P
- Subjects
- Adolescent, Child, Child, Preschool, Feasibility Studies, Humans, Infant, Infant, Newborn, Mitral Valve Insufficiency physiopathology, Predictive Value of Tests, Reproducibility of Results, Severity of Illness Index, Stroke Volume, Ventricular Function, Left, Young Adult, Echocardiography, Doppler, Color, Echocardiography, Three-Dimensional, Mitral Valve Insufficiency diagnostic imaging
- Abstract
Background: Evaluation of mitral-regurgitation (MR) severity in infants is challenging. Real-time three-dimensional echocardiography (RT3DE) allows accurate left-ventricular volumetric measurements in adults., Aims: To validate RT3DE by measuring stroke volume in a normal paediatric population, then to use this new method to calculate regurgitant volume in paediatric patients with MR., Methods: Fifty-four patients, aged one week to 19 years, (29 without and 25 with MR) had two-dimensional echocardiography coupled with RT3DE left-ventricular volumetric acquisition. Stroke volume was calculated by the Doppler method at the aortic annulus (SV(D)). End-systolic and end-diastolic left-ventricular volumes were measured using the QLab semi-automated method; three-dimensional stroke volume (SV(3D)) was calculated as their difference. In the MR group, regurgitant volume was calculated by the PISA method (RV(PISA)) and as the difference between SV(3D) and SV(D) (RV(3D)). Regurgitant fraction was also evaluated by these methods (RF(PISA) and RF(3D))., Results: Measurement feasibility was 88%. In the normal group, SV(3D) (27.9+/-18.1 ml) was highly correlated with SV(D) (30.7+/-19.6 ml; r=0.98; p<0.000). In the MR group, RV(PISA) (15.7+/-14.4 ml) and RV(3D) (11.0+/-10.2 ml) were well correlated (r=0.83; p<0.001). Regurgitant fractions were also well correlated (RF(PISA)=30.4+/-17.0%; RF(3D)=24.3+/-15.9%; r=0.79, p=0.006)., Conclusion: RT3DE is a simple, rapid and reliable method for evaluating stroke volume in children and may, therefore, be useful for evaluating regurgitant volume and fraction in paediatric patients with MR.
- Published
- 2008
- Full Text
- View/download PDF
27. Mitral regurgitation mechanism assessed by 2D and 3D echocardiography in patient with an abnormal left coronary artery arising from the pulmonary artery.
- Author
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Blot-Souletie N, Paranon S, and Acar P
- Subjects
- Cardiac Surgical Procedures, Coronary Vessel Anomalies complications, Coronary Vessel Anomalies surgery, Coronary Vessels surgery, Heart Failure diagnostic imaging, Heart Failure physiopathology, Humans, Infant, Male, Mitral Valve Insufficiency diagnostic imaging, Mitral Valve Insufficiency physiopathology, Myocardial Contraction, Pulmonary Artery abnormalities, Stroke Volume, Treatment Outcome, Ventricular Function, Left, Coronary Vessel Anomalies diagnostic imaging, Coronary Vessels diagnostic imaging, Echocardiography, Doppler, Color, Echocardiography, Three-Dimensional, Heart Failure etiology, Mitral Valve Insufficiency etiology, Pulmonary Artery diagnostic imaging
- Published
- 2008
- Full Text
- View/download PDF
28. Unroofed coronary sinus with persistent left superior vena cava assessed by 3D echocardiography.
- Author
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Acar P, Arran S, and Paranon S
- Subjects
- Humans, Infant, Newborn, Coronary Sinus abnormalities, Coronary Sinus diagnostic imaging, Echocardiography, Three-Dimensional methods, Vena Cava, Superior abnormalities, Vena Cava, Superior diagnostic imaging
- Published
- 2008
- Full Text
- View/download PDF
29. Live 3D echocardiography with the pediatric matrix probe.
- Author
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Acar P, Abadir S, Paranon S, Latcu G, Grosjean J, and Dulac Y
- Subjects
- Child, Child, Preschool, Echocardiography, Three-Dimensional methods, Equipment Design, Equipment Failure Analysis, Humans, Image Enhancement instrumentation, Infant, Infant, Newborn, Reproducibility of Results, Sensitivity and Specificity, Ultrasonography, Prenatal methods, Echocardiography, Three-Dimensional instrumentation, Heart Defects, Congenital diagnostic imaging, Pediatrics instrumentation, Transducers, Ultrasonography, Prenatal instrumentation
- Abstract
Three-dimensional echocardiography (3DE) enables new views of heart valves and the septa to be imaged. While the previous 3DE system was cumbersome, the recent introduction of live 3DE allowed for routine use of the technique in adult patients. Here, we report our initial experiences in adapting live 3DE and the adult matrix probe to the pediatric population. Thirty-four 3DE examinations were performed on children, aged 1 day to 12 years (n = 23; median 4 years) and fetuses 20-33 weeks in gestation (n = 11; median 25 weeks), many of whom had various congenital heart diseases. The pediatric matrix probe (2-7 MHz) was used for 2D, Doppler, and 3DE. New modalities of the Vision 2007 (Philips) were applied: live, full volume, thick slice, 3D color Doppler, the QLAB system for navigation, and cropping. The pediatric matrix probe allows for complete 2D and 3D echocardiography, and new acoustic windows are now available to perform live 3DE. The higher frequency of the probe increases the 3D image resolution obtained in neonates and fetuses. This advancement allows new views of the aorta, pulmonary valve, septa and intra cardiac anatomy to be captured. Real time 3DE is a feasible method in addition to conventional 2D echocardiography for evaluating congenital heart disease.
- Published
- 2007
- Full Text
- View/download PDF
30. [Evaluation of left ventricular diastolic function in children by doppler tissue imaging].
- Author
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Rumeau P, Acar P, Paranon S, Bassil R, Cournot M, Dulac Y, Guitton J, and Latcu G
- Subjects
- Adolescent, Adult, Age Factors, Body Size, Child, Child, Preschool, Feasibility Studies, Female, Heart Ventricles diagnostic imaging, Humans, Infant, Infant, Newborn, Male, Mitral Valve diagnostic imaging, Myocardial Contraction physiology, Diastole physiology, Echocardiography, Doppler methods, Ventricular Function, Left physiology
- Abstract
Left ventricular diastolic function may change at an early stage in cardiac disease. It is often difficult to assess in daily practice. The use of Doppler tissue imaging at the annulus has been validated in adults. This method is little used in paediatrics and the physiological norms have not been established in children. Forty three children aged 7 days to 241 months were referred for a cardiological opinion with normal echocardiogrammes were included. Myocardial velocities were measured by Doppler tissue imaging of the left and right ventricular walls at different moments of the cardiac cycle in the apical 4-chamber view. A complete study was possible in 39 cases (91%). Doppler tissue imaging was not performed in one case and was incomplete on the right ventricle in 3 children. The median of the lateral mitral tissue E wave (Ea) was 16.3 cm/s and that of the right ventricle was 15.8 cm/s with a tissue Ea/Aa ratio of 2.6 and 1.6 respectively. The median of the tissue S waves was 8.8 cm/s for the left ventricular lateral wall and 13.3 cm/s for the right ventricular lateral wall. The E/Ea ratio of the left ventricular lateral wall was 5.9. Although the velocities of the left ventricular lateral wall were not related to the children's' age or size, the correlations between the E/Ea ratio and age and size were statistically significant. The myocardial velocities of the neonate were characteristic and different to those of the older paediatric population (slower Ea and S waves, faster Aa with a higher E/Ea ratio). The authors conclude that Doppler tissue imaging is feasible in clinical paediatric cardiology. Comparative studies with populations with cardiac disease are necessary to determine pathological values.
- Published
- 2007
31. [Transposition of the great arteries with pulmonary valvular stenosis and intact interventricular septum. Discussion of management strategies with respect to one case].
- Author
-
Guitton-Grosjean J, Leobon B, Mokhfi E, Paranon S, Bassil R, Latcu G, Belli E, and Acar P
- Subjects
- Cardiac Output, Low etiology, Fatal Outcome, Follow-Up Studies, Heart Septum pathology, Humans, Infant, Newborn, Male, Myocardial Ischemia etiology, Pulmonary Valve Stenosis surgery, Transposition of Great Vessels surgery, Ventricular Outflow Obstruction etiology, Pulmonary Valve Stenosis complications, Transposition of Great Vessels complications
- Abstract
The authors report the case of a neonate with transposition of the great arteries (TGA) with pulmonary stenosis (PS) and intact Interventricular septum. The child was born at full term without a prenatal diagnosis with cyanosis developing at the 12th hour. After emergency atrioseptostomy, detransposition was performed on the 6th day. Commissurotomy and shaving of the much thickened bicuspid pulmonary valve was also performed. The postoperative course was complicated by a non-compliant left ventricle. After two months, myocardial ischaemia and persistent obstruction of the outflow tract led to severe cardiac failure and the death of the child. TGA with PS and intact interventricular septum is a very rare cardiac malformation. The prognosis is closely related to the anatomy of the pulmonary valve and the impact on the left ventricle. The therapeutic options are complex and are discussed in relation to this case.
- Published
- 2007
32. [Arrhythmia follow-up of children and adolescents with neuromuscular diseases].
- Author
-
Dulac Y, Wahbi K, Latcu DG, Maury P, Cances C, Cintas P, Paranon S, Duboc D, and Acar P
- Subjects
- Adolescent, Age Factors, Arrhythmias, Cardiac prevention & control, Child, Follow-Up Studies, Humans, Muscular Dystrophies classification, Arrhythmias, Cardiac etiology, Muscular Dystrophies complications, Neuromuscular Diseases complications
- Abstract
Much progress has been made over the last few years in understanding and classifying neuromuscular diseases. The heart is frequently affected but often in a dissociated manner with respect to the neuromuscular signs although it has a significant impact on the prognosis. In children and adolescents, the dystrophinopathies, especially Duchenne's muscular dystrophy, are the principal problems but the mild arrhythmic events observed seem to be related to left ventricular dysfunction. On the other hand, in myotonic dystrophies (Steinert's disease), ventricular arrhythmias or conduction defects may appear at an early stage of the disease with serious consequences justifying appropriate follow-up and invasive preventive measures. Emery Dreifuss X-linked dystrophy and other laminopathies are rare conditions but are associated with sudden death and cardiomyopathies of the young adult. Specialised cardiological follow-up is justified in childhood from the time of diagnosis. Medication or implantable electric devices may be justified before the end of the second decade of life. Progressive infra-hisian conduction defects have also been reported in Kearns-Sayre oculo-pharyngeal myopathy. Prospective studies are required at this age to determine the natural history of these pathologies that are probably under diagnosed. The present recommendations, which are based mainly on data from adult series, could then be adapted for younger patients.
- Published
- 2007
33. [Very large cardiac tumor revealed by ventricular arrhythmia in a 18-month-old infant].
- Author
-
Dulac Y, Plat G, Taktak A, Bassil R, Zabalawi A, Paranon S, Rumeau P, Marcoux MO, and Acar P
- Subjects
- Heart Neoplasms diagnosis, Humans, Infant, Male, Heart Neoplasms complications, Heart Neoplasms pathology, Tachycardia, Ventricular etiology
- Abstract
Cardiac tumors are rare in childhood and can be revealed by arrhythmias. We report the observation of an 18-month-old infant who had an episode of ventricular tachycardia (VT) which resulted in a large intramyocardic tumour diagnosis evocating a left ventricular fibroma. A treatment by amiodarone allowed a stable reduction of the VT. The presence of an intracardiac obstruction or uncontrollable arrhythmias would lead to a surgical resection.
- Published
- 2006
- Full Text
- View/download PDF
34. [Unusual outcome of mitral valve infectious endocarditis in a premature infant].
- Author
-
Zabalawi A, Taktak A, Bassil R, Paranon S, Ghez O, Kreitmann B, Dulac Y, and Acar P
- Subjects
- Anti-Bacterial Agents therapeutic use, Drug Therapy, Combination, Echocardiography, Endocarditis, Bacterial diagnosis, Endocarditis, Bacterial therapy, Humans, Infant, Newborn, Mitral Valve diagnostic imaging, Mitral Valve surgery, Mitral Valve Insufficiency diagnosis, Mitral Valve Insufficiency therapy, Platelet Aggregation Inhibitors therapeutic use, Staphylococcal Infections diagnosis, Staphylococcal Infections therapy, Treatment Outcome, Endocarditis, Bacterial microbiology, Infant, Premature, Mitral Valve microbiology, Mitral Valve Insufficiency etiology, Staphylococcal Infections complications, Staphylococcus aureus isolation & purification
- Abstract
The authors report a case of Staphylococcus Aureus infectious endocarditis in a premature baby. Echocardiography on the 8th day of life showed a large vegetation on the anterior mitral leaflet without significant regurgitation. Intravenous antibiotics and platelet antiaggregant therapy were given. At three weeks of age the vegetation split into two, one part attached to the foramen ovale and the other to the anterior mitral leaflet. At one month, the development of severe mitral regurgitation led to surgical valvuloplasty in a 2 kg neonate, the vegetation on the foramen ovale having spontaneously fragmented. The ablation of the mitral vegetation associated with commissuroplasty reduced the mitral regurgitation. At 3 months after surgery, the child was asymptomatic with a minimal mitral regurgitation.
- Published
- 2006
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