• B-US: RA and RV enlargement , paradoxical movement of interventricular septum .
Pediatrics , Shengjing Hospital
Complications and Treatment
• Complications bronchopneumonia 、heart failure.
Examination
• X-ray: aortic knob smaller than normal main PA segment protrusion LV enlargement increase lung markings • ECG: LV hypertrophy • US : interventricular septum
• Treatment minor defect:may avoid operation. media defect:operation at 5-6 years old. major defect with complications: operation at 6m-2y.
Pediatrics , Shengjing Hospital
RV (dilation)
body circulation Blood volume↓
Before pulmonary hypertension
Pediatrics , Shengjing Hospital
Hemodynamics
RA
LA
Pulmonary Artery
shunt
RV
LV
dilation
ASD Etibiology
• Pulmonary circulation blood volume increase