Some of pulmonary vasodilation agent, calcium channel blockers and ACEI in the early cases to trial rule, but most of the pulmonary hypertension had no significant effect.

• 也有人应用肺血管舒张剂、钙通道阻滞剂和ACEI对早期病例进行试治，但对肺动脉高压大多无明显疗效。