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阴茎海绵体血管活性药物试验

为区别是血管性阳痿还是功能性阳痿,用阴茎海绵体血管活性药物试验方法可以得到鉴别。

血管活性药物试验常选择罂粟碱、酚妥拉明、酚苄明、前列腺素E1等药物。这些药物的作用机理就是松弛阴茎海绵体内的平滑肌,使其充血勃起。

应用罂粟碱试验的方法是:用罂粟碱60—80mg,注入阴茎海绵体内(注意严格无菌操作),2—15分钟时作用最显著,勃起可持续100—120分钟。

如能在注射后应用彩色多普勒检查,可以确切地测出血流速度及血管扩张状态。若有血管性阳痿,过后数天勃起会明显改善。如为功能性阳痿,过后一般变化不大。