Knowledge Check: Clinical Presentation of Congenital Heart Disease in the First Week of Life – Congestive Heart Failure
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Question 1 of 5
1. Question
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4:57 – By one month of life, the pulmonary vascular resistance is low, so more blood is shunted from left to right, which causes a volume overload on the left side of the heart.
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Question 2 of 5
2. Question
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5:56 – Aortic stenosis often presents during the first week of life when the heart has difficulty pumping past the left-sided stenotic lesion, leading to back-up of pressure in the left atrium and lungs.
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Question 3 of 5
3. Question
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6:09 – Neonates with pulmonary stenosis have a severe right ventricular outflow tract obstruction, leading to elevated pressure in the right atrium, which allows deoxygenated blood to shunt from the right side of the heart to the left side and out to the body.
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Question 4 of 5
4. Question
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8:04 – In coarctation of the aorta, pre-ductal systolic blood pressures (right arm) are often 20mmHg higher than post-ductal blood pressures (left leg).
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Question 5 of 5
5. Question
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8:17 – Children with aortic stenosis often have left ventricular hypertrophy on ECG. Children with hypoplastic left heart do not have a left ventricle, and thus have right axis deviation and right ventricular hypertrophy, in addition to a lack of left-sided forces.
