Atrial septal defect shunt
Atrial septal defect shunt degree of left-to-right atrial shunting depends on mostly
[A] Ejection fraction of RV
[B] Size of pulmonary artery
[C] Cardiac cycle
[D] Diastolic filling properties of the two ventricles
Atrial septal defect shunt
- Atrial-level shunt- degree of left-to-right atrial shunting depends on the
- Size of the defect
- Relative diastolic filling properties of the two ventricles
Conditions increase the left-to-right shunt in ASD
- Reduced left ventricular compliance
- Systemic hypertension
- Cardiomyopathy
- Myocardial infarction
- Increased left atrial pressure
- Mitral stenosis
- Mitral regurgitation
Conditions decrease the left-to-right shunt in ASD
- Reduced RV compliance
- Pulmonary hypertension
- Increased Right atrial pressure
- Tricuspid stenosis
- Tricuspid regurgitation
Gerbode defect
Gerbode defect is defined as abnormal shunting between the left ventricle and right atrium resulting from either a congenital defect or prior cardiac insults
