The Experts below are selected from a list of 159 Experts worldwide ranked by ideXlab platform
Michael Tynan - One of the best experts on this subject based on the ideXlab platform.
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Laser-assisted Tricuspid Valve balloon dilation for acquired Tricuspid Valve Atresia
European heart journal, 1992Co-Authors: Eric Rosenthal, Shakeel A. Qureshi, A. P. Kakadekkar, Michael TynanAbstract:Acquired pulmonary Valve Atresia is a well-recognized but uncommon complication of surgical systemic-to-pulmonary artery shunts in patients with tetralogy of Fallot. Acquired Atresia of the Tricuspid Valve, however, has not been reported previously. This complication developed in a 3-year-old girl, with pulmonary Atresia and an intact ventricular septum, after a Blalock-Taussig shunt and right ventricular outflow tract reconstruction. Percutaneous transcatheter laser-assisted balloon dilation re-established antegrade flow across the Tricuspid Valve.
Ozge Yucel Celik - One of the best experts on this subject based on the ideXlab platform.
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prenatal diagnosis of double outlet right ventricle with Tricuspid Valve Atresia anomalous pulmonary vein connection persistent left superior vena cava and right atrial isomerism
Journal of Clinical Ultrasound, 2020Co-Authors: Osman Yilmaz, Ozge Yucel CelikAbstract:Double-outlet right ventricle is a conotruncal cardiac disease in which both the aorta and the pulmonary artery predominantly or completely originate from the right ventricle. Here, we report a complex variant double-outlet right ventricle detected in utero and identified on the basis of a segmental approach.
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Prenatal diagnosis of double‐outlet right ventricle with Tricuspid Valve Atresia, anomalous pulmonary vein connection, persistent left superior vena cava, and right atrial isomerism
Journal of clinical ultrasound : JCU, 2020Co-Authors: Osman Yilmaz, Ozge Yucel CelikAbstract:Double-outlet right ventricle is a conotruncal cardiac disease in which both the aorta and the pulmonary artery predominantly or completely originate from the right ventricle. Here, we report a complex variant double-outlet right ventricle detected in utero and identified on the basis of a segmental approach.
Robert M. Freedom - One of the best experts on this subject based on the ideXlab platform.
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Ventricular function during supine bicycle exercise in univentricular connection with absent right atrioventricular connection.
The American journal of cardiology, 1991Co-Authors: Teiji Akagi, Lee N. Benson, Maria Green, Margaret De Souza, Joyce R. Harder, David L. Gilday, Robert M. FreedomAbstract:Abstract Fourteen patients with univentricular connection, absent right connection (Tricuspid Valve Atresia) and normally related great arteries underwent rest, and supine bicycle exercise equilibrium radionuclide blood pool studies. Ejection fraction, heart rate, systemic blood pressure and oxygen saturation (ear oximetry) were measured. There were 6 male and 8 female patients. Mean age ± standard error of the mean was 14.5 ± 1.1 years (range 6.3 to 21.1). Eight patients (group 1) had systemic to pulmonary shunts placed as palliation 8.2 ± 2.2 years before study and 6 patients (group 11) had caval to pulmonary shunts placed 11.8 ± 1.6 years previously. Ejection fraction at rest was 54 ± 2% and an abnormal response to exercise (failure of ejection fraction to increase ⩾5% from rest to peak exercise) was found in 9 of 14 patients When analyzed separately, ejection fraction at rest in group 1 was higher than in group 11; however, this difference disappeared at peak exercise. There was a significant negative correlation between ejection fraction at peak exercise and the interval since palliative surgery, although it was not apparent at rest. These data suggest that ventricular function is compromised during exercise and that abnormal performance is influenced by long-standing volume overload: Importantly, this abnormal state is concealed at rest and the choice of palliative shunting procedure appears to have little effect on normalizing pump performance.
Klaus Kaufmehl - One of the best experts on this subject based on the ideXlab platform.
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Oxygen uptake transient kinetics during constant-load exercise in children after operations of ventricular septal defect, tetralogy of Fallot, transposition of the great arteries, or Tricuspid Valve Atresia☆
The American journal of cardiology, 1994Co-Authors: Peter Gildein, Rolf Mocellin, Klaus KaufmehlAbstract:Cardiovascular function accounts for endurance performance and, by a rapid increase in oxygen supply at the onset of exercise, contributes to short-lasting intensive exertion prevailing in many kinds of sports activities. This study determined the time for oxygen uptake (VO2) to reach one half of its asymptotic level above rest, and the respective oxygen deficit following the onset of a constant-load exercise corresponding to 80% to 90% of the maximal oxygen uptake (VO2max) in 35 children after surgical closure of a ventricular septal defect, after corrective surgery for tetralogy of Fallot, or after the Senning, Mustard, or Fontan procedures. In addition, VO2max and maximal blood lactate were determined. The half-time of VO2 response and oxygen deficit was lowest in patients after closure of a ventricular septal defect, whereas children had the most unfavorable VO2 transient kinetics after Fontan operation or with a transannular patch after correction of tetralogy of Fallot. A negative correlation was evaluated between half-time of VO2 response and VO2max, whereas maximal blood lactate varied independently of VO2max. It is concluded that many children with decreased VO2max after cardiac surgery also have unfavorable VO2 transient kinetics. In addition to being less qualified for endurance performance, they are also less prepared for short-lasting intensive energy expenditure. Therefore, the primary aim of training in these children is to improve the economy of motion of the respective tasks.
Eric Rosenthal - One of the best experts on this subject based on the ideXlab platform.
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Laser-assisted Tricuspid Valve balloon dilation for acquired Tricuspid Valve Atresia
European heart journal, 1992Co-Authors: Eric Rosenthal, Shakeel A. Qureshi, A. P. Kakadekkar, Michael TynanAbstract:Acquired pulmonary Valve Atresia is a well-recognized but uncommon complication of surgical systemic-to-pulmonary artery shunts in patients with tetralogy of Fallot. Acquired Atresia of the Tricuspid Valve, however, has not been reported previously. This complication developed in a 3-year-old girl, with pulmonary Atresia and an intact ventricular septum, after a Blalock-Taussig shunt and right ventricular outflow tract reconstruction. Percutaneous transcatheter laser-assisted balloon dilation re-established antegrade flow across the Tricuspid Valve.
