Fetal Echocardiography| 138 QUESTIONS| QUESTIONS WITH COMPLETE SOLUTIONS

What is the most common congenital heart disease (CHD) in fetal? correct answer: VSD CHD most likely associated with abnormal chromosomes? correct answer: VSD, AVSD, Tetralogy of Fallot CHD least likely associated with abnormal chromosomes? correct answer: D-TGA, Atrial Isomerism (heterotaxy) CHD most likely associated with non-cardiac anomalies? correct answer: Tetralogy of Fallot, Coarctation, Pulmonary Stenosis Organogenesis correct answer: All major organ systems, including the cardiovascular system are formed between the 3rd and 8th week of development Stage I of Cardiac Embryology correct answer: -Paired tubular structures form a single, slightly bent heart tube -Cephalic portion of the heart tube connects with developing arterial system -Caudal portion connects with the developing systemic venous system Stage II of Cardiac Embryology correct answer: The single tubular structure bends to the right to form the Atrioventriculobulbar loop The cephalic aspect of the cardiac loop? correct answer: Bulbus Cordis The caudal portion of the cardiac loop? correct answer: Sinus Vensous Bulbus Cordis forms the ____________________? correct answer: Truncus Arteriosus Stage III of Cardiac Embryology correct answer: -The cardiac septa develop, forming the four cardiac chambers -Atrioventricular (AV) node and Sinoatrial (SA) node develop within the right atrium -Fusion of the four large endocardial cushions in the AV canal The ______________________ forms first and descends from the top atria. correct answer: Septum primum The ______________________ develops to the right of the septum primum and grows from the ventral to dorsal. correct answer: Septum Secundum