50yr old female, just diagnosed with SV ASD + PAPVD. Recent symptoms include palpitations & losing consciousness once. Also previously dizziness on standing.

Investigations so far:

• ECG (right branch bundle blockage, apparently benign)
• echocardiogram, suspected SV ASD
• Cardio MRI, confirmed ASD
• another echocardiogram, identified persistent left vena cava and very dilated coronary sinus, plus suspected anomalous pulmonary connection
• Catheter angiogram confirmed 2cm ASD, “thin” right vena cava, existence of left vena cava, could not visualise the mis-connected 4th pulmonary vein.

Treatment: planning open heart surgery, don’t know details yet.
Being treated at London Brompton heart hospital.