Natural History of Atrial septal defect
Natural History of Atrial septal defect
Natural History of Atrial septal defect
What is the most common presentation for undetected ASD with a significant shunt (Qp/Qs > 1.5/1.0) ?
[A] Chest pain
[B] Effort dyspnea
[C] Atrial fibrillation
[D] Paradoxical embolism
Natural History of Atrial septal defect
- [Qp/Qs] > 2.0/1.0 – Large true secundum ASDs – Managed in childhood by surgical or device closure
- Qp/Qs > 1.5/1.0 – If remain as undetected ASD – presents as Effort angina
- Effort angina – 30% of patients present by the third decade and more than 75% of patients present by the fifth decade
- Supraventricular arrhythmias (atrial fibrillation or flutter)
- Right-sided heart failure – develop by 40 years of age
- Paradoxical embolism -TIA
[Qp/Qs] = Pulmonary artery blood flow relative to systemic blood flow
Natural History of Atrial septal defect
- Most common presenting symptoms in adults are – exertional dyspnea
Natural History of Atrial septal defect
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
