Methods 30 patients diagnosed with congenital heart defect associated complicated with moderate and severe PH were randomly divided into the tetram ethylpyrazine group (group A,n=15) and the control group (group B,n=15).

• 肺动脉压正常15例。 分为川芎嗪治疗组(A组,n=15)及对照组(B组,n=15)。