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Lecture 6

Congenital Heart Disease II pgs. 12-15

What is TAPVR (Total Anomalous Pulmonary Venous Return) When all four pulmonary veins return to the systemic venous circulation or directly to the right atrium resulting in a mixing of systemic and venous blood
What defects are associated with TAPVR? ASD or patent foramen ovale to help maintain left ventricle output
What is the management of TAPVR? Surgical management is often needed in the neonatal period (reattach pulmonary veins to the left atrium
What is the main feature of TGA (Transplantation of the Great Arteries) ventriculoarterial discordance with the aorta arising from the right ventricle and the pulmonary artery arising from the left ventricle
When you have TGAs how do you maintain oxygenation of the tissues? Tissue oxygenation depends on mixing of blood through either an ASD, VSD, or PDA
What is d-TGA Aorta is anterior and to the right of the pulmonary artery with Atrial ventricular concordance (parallel circulation)
What is I-TGA Aorta is anterior and to the left of the pulmonary artery with atrial ventricular discordance resulting in "corrected" transposition (circulation in series)
Are infants with d-TGA or I-TGA more likely to be cyanotic in the newborn period and show signs of congestive heart failure within weeks? d-TGA
How do patients with I-TGA often manifest they are usually asymptomatic but are prone to late right ventricular dysfunction as the right ventricle is not equipped to support the systemic circulation
What is initial management of TGA maintaining patency of the ductus arteriosus and or through atrial septostomy
what is Truncus Arteriosus a single arterial trunk arises from a single semilunar valve and supplies teh aorta, coronary arteries and pulmonary arteries.
what component of fetal circulation is usually absent Ductus Arteriosus
why does cyanosis develop with truncus arteriosus extensive mixing of the oxygenated and deoxygenated blood
What are the four components of Tetrology of Fallot? VSD, Right ventricular outflow obstruction, Overriding aorta, and Right Ventricular hypertrophy
what is a Tet spell paroxysmal hypercyanotic spells that are usually brought on by agitation or feeding (prolonged cyring tachypnea, cyanosis and increased pulmonary stenosis murmur)
What is therapy for a Tet Spell placing the baby's knees to its chest to decrease pulonary venous return and increase systemic vascular resistance.
What are the four defects resulting in Acyanosis and increased PBF? the Ds (Names with a component starting with a D) ASD, VSD, AVSD, PDA
what are the defects that result in acyanosis and nml PBF? the stenosis and Coarcs, Pulmonary and Aortic Stenosis and Aortic Coarctation
You have a kid with cyanosis and decreased pulmonary blood flow what do they have? Pulmonary Atresia, Ebstein's Anomaly, or Tetrology of Fallot
Created by: UVAPATH3