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Case 1
History
- 45 yo female
- No PMX
- C/O: Palpitations, chest pain, intermittent dyspnoea
- O/E: NSR, CVS nil, No LVF/RVF
- Referred for work-up
- ECG: NSR
- Echocardiogram: Dilated RV, mild RA ↑

Findings
- Differential Dx isolated RV ↑:
- Pulmonary stenosis
- Pulmonary regurgitation
- Pulmonary arterial hypertension
- VSD
- ASD
- Large PE (acute)



Diagnosis
- Diagnosis: ASD, Sinus Venosus Defect
- Types: PFO: Normal neonatal shunt, persists in 30% adults, paradox embolus→CVA, assoc migraine
- Ostium Primum: (20%) anterior + inferior ASD 2o failure endocardial cushion fusion, assoc trisomy 21
- Ostium Secundum: (70%) most common ASD, occurs in fossa ovalis
- Sinus Venosus: (10%) Posterior + superior septum near SVC, assoc partial anomalous venous return R sup PV→SVC
- Coronary Sinus: Defect b/t LA + cor sinus (<1% of ASDs), assoc left SVC
Treatment
- Percutaneous ASD closure
- Amplatzer Septal Occluder

