Pediatrics- Cardiovascular Flashcards
 When does heart failure occur?
When the heart is unable to pump, adequate blood to meet the metabolic and physical demands of the body
What is congenital heart disease?
Anatomic defects of the heart prevent normal blood flow to the pulmonary, and or systematic systems
What are the different effects of congenital heart disease?
Increase pulmonary blood flow,
decrease pulmonary blood flow
obstruction to blood flow
mixed blood flow
What defects increase pulmonary blood flow
ASD (atrial septal defect)
VSD (ventricle septal defect)
PDA (patent ductus arteriosus )
What are risk factors to getting congenital heart disease?
Maternal factors -  infection alcohol during pregnancy, diabetes mellitus
Genetic factors- history of disease, down syndrome
What happens when there is a defect that increases pulmonary blood flow
Blood flow shifts from high-pressure left side of the heart to the right, lower pressure side of the heart
In defects that increase pulmonary blood flow, what side of the heart increases blood flow
Pulmonary blood volume on the right side
In defects that increase pulmonary blood flow, there is usually a finding of
Heart failure
What is ventricle septal defect (VSD)?
A hole in the septum between the right, and left ventricle that results in an increase pulmonary blood flow
What are findings in VSD (ventricle septal defect)?
Loud harsh murmur auscultated at the left sternal border
Many close spontaneously, early in life
What is atrial septal defect (ASD)?
A hole in the septum between the right, and left atria that results in an increase pulmonary blood flow
What are findings in an atrial septal defect (ASD)?
Load harsh murmur with a fixed split second heart sound
 Possibly asymptomatic
What is patent ductus arteriosus? (PDA)
A condition in which the normal fetal circulation conduit between the pulmonary artery in the aorta fails to close in result in increased pulmonary blood flow
What are findings in patent ductus arteriosus?
Systolic murmur,
wide, pulse pressure,
bounding, pulses,
possibly asymptomatic
rales
What is an obstructive defect in the heart
Blood flow exiting the heart meets the area of narrowing (stenosis) which causes obstruction of blood flow
What happens to the pressure in the heart when there is an obstructive defect?
The pressure that occurs before the defect is increased, (ventricle) and the pressure that occurs after the defect is decreased
In an obstructive defect, what happens to cardiac output?
There is a decrease in cardiac output
What is pulmonary stenosis?
A narrowing of the pulmonary valve or pulmonary artery that results in obstruction of blood flow from the ventricles
What defects, obstruct blood flow
Pulmonary stenosis,
aortic stenosis,
coarctation of the aorta
What are findings and pulmonary stenosis
Systolic ejection murmur,
possibly asymptomatic,
cyanosis worsens with severe narrowing
cardiomegaly
What is aortic stenosis?
Narrowing of the aortic valve
What are findings in infants with aortic stenosis?
 Saint pulses,
hypotension
tachycardia,
poor feeding tolerance
What are findings in children with aortic stenosis?
Intolerance to exercise,
dizziness,
chest pain,
possible ejection murmur
What is coarctation of the aorta
A narrowing of the lumen of the aorta, usually at or near the ductus arteriosus that results in obstruction of blood flow from the ventricles