1. Her first baby had a pulmonary stenosis.

2. Pulmonary stenosis should be detected by combination of two - dimensional echocardiography, color Doppler imaging and spectral Doppler.

3. Objective To evaluate electrocardiogram ( ECG ) in the diagnosis and treatment of severe pulmonary stenosis ( PS ).

4. Conclusion Doppler echocardiogram is important in diagnosing and differentiating pulmonary stenosis.

5. Atrial shunts which are various due to the degree of pulmonary stenosis, should be accordingly judged.

6. Methods Percutaneous balloon dilation were adopted in totally 18 cases of valvular pulmonary stenosis and its effect was evaluated by echocardiography and angiocardiography.