Cause of normal pulmonic velocity in fetal tetralogy of Fallot
In 10 fetuses with tetralogy of Fallot, 9 lacked high velocity across the obstructed right ventricular outflow tract, which we conclude was due to the parallel flow circulations created by the combination of ventricular septal defect and arterial duct. The normally high resistance in the fetal pulmo...
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| Veröffentlicht in: | The American journal of cardiology 2003-12, Vol.92 (12), p.1485-1487 |
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| container_title | The American journal of cardiology |
| container_volume | 92 |
| creator | Guntheroth, Warren G. Forster, Fred K. Stevenson, J.Geoffrey |
| description | In 10 fetuses with tetralogy of Fallot, 9 lacked high velocity across the obstructed right ventricular outflow tract, which we conclude was due to the parallel flow circulations created by the combination of ventricular septal defect and arterial duct. The normally high resistance in the fetal pulmonary vascular system substantially exceeds the resistance of the systemic vasculature, resulting in the maintenance of right-to-left ductal flow in all 10 fetuses who had only moderate pulmonary obstruction. |
| doi_str_mv | 10.1016/j.amjcard.2003.08.068 |
| format | Article |
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| identifier | ISSN: 0002-9149 |
| ispartof | The American journal of cardiology, 2003-12, Vol.92 (12), p.1485-1487 |
| issn | 0002-9149 1879-1913 |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Biological and medical sciences Blood Flow Velocity - physiology Cardiology. Vascular system Cardiovascular disease Congenital heart diseases. Malformations of the aorta, pulmonary vessels and vena cava Female Fetal Diseases - diagnostic imaging Fetal Diseases - physiopathology Fetuses Heart Humans Lungs Medical sciences Models, Cardiovascular Pilot Projects Pregnancy Pulmonary Artery - diagnostic imaging Pulmonary Artery - embryology Pulmonary Artery - physiopathology Tetralogy of Fallot - diagnostic imaging Tetralogy of Fallot - embryology Tetralogy of Fallot - physiopathology Ultrasonography, Prenatal Ventricular Outflow Obstruction - diagnostic imaging Ventricular Outflow Obstruction - embryology Ventricular Outflow Obstruction - physiopathology |
| title | Cause of normal pulmonic velocity in fetal tetralogy of Fallot |
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