酚妥拉明(Rigitin)为特异的α受体阻断剂,近几年一些国外学者,就酚妥拉明对肺心病血液动力学的影响进行了探讨,认为它有直接松弛肺循环血管床平滑肌的作用,通过心导管方法测定,在0.3(0.3毫克/分)毫克/分静脉滴注时,可使肺动脉平均压降低 Phentolamine (Rigitin) is a specific α-blocker, in recent years, some foreign scholars on the phentolamine pulmonary heart disease hemodynamics were discussed that it has a direct relaxation of pulmonary vascular smooth muscle The effect of cardiac catheterization was measured at a 0.3 (0.3 mg / min) mg / min infusion, which reduced the mean pulmonary artery pressure