Bancroft J, Smith G, Munoz M, Ronald P
MRC Reproductive Biology Unit, Edinburgh.
Br J Urol. 1991 Dec;68(6):629-38. doi: 10.1111/j.1464-410x.1991.tb15429.x.
Three methods of assessing erectile capacity--nocturnal penile tumescence (NPT), response to visual erotic stimuli (VES) and to intracavernosal papaverine (ICI)--have been assessed in 42 men presenting with erectile dysfunction. There was some overlap but also important differences between the 3 measures. Subjects were divided into "high" and "low" NPT groups. The "high" group produced greater erectile responses to both VES and ICI. The combination of VES and ICI was the best discriminator of the two NPT groups, and may be of diagnostic value, particularly in younger men, reducing the need for repeated injections and higher doses of papaverine. In the "low" NPT group, presumed predominantly organic, the ICI response correlated better than the VES response with NPT. In the "high" NPT group, the opposite applied, suggesting that in "psychogenic" cases, response to ICI may be modified by psychological mechanisms which could be of aetiological importance and which deserve further study. These three methods should be regarded as measuring different aspects of erectile function and not as alternative diagnostic procedures. More research is required before their respective diagnostic values are established.
对42例勃起功能障碍男性患者评估了三种评估勃起能力的方法——夜间阴茎勃起（NPT）、对视觉性刺激（VES）的反应以及对海绵体内注射罂粟碱（ICI）的反应。这三种测量方法存在一些重叠，但也有重要差异。受试者被分为“高”NPT组和“低”NPT组。“高”NPT组对VES和ICI均产生更大的勃起反应。VES和ICI的联合是区分两个NPT组的最佳方法，可能具有诊断价值，尤其是在年轻男性中，可减少重复注射和高剂量罂粟碱的需求。在主要推测为器质性病变的“低”NPT组中，ICI反应与NPT的相关性优于VES反应。在“高”NPT组中，情况则相反，这表明在“心因性”病例中，对ICI的反应可能会受到心理机制的影响，这些心理机制可能具有病因学重要性，值得进一步研究。这三种方法应被视为测量勃起功能的不同方面，而不是替代诊断程序。在确定它们各自的诊断价值之前，还需要更多的研究。
