Hatzichristou D G, Hatzimouratidis K, Ioannides E, Yannakoyorgos K, Dimitriadis G, Kalinderis A
Department of Urology, School of Medicine, Aristotle University of Thessaloniki, Greece.
J Urol. 1998 Jun;159(6):1921-6. doi: 10.1016/S0022-5347(01)63197-5.
We studied the reproducibility of nocturnal penile tumescence, rigidity evaluation criteria and the possible effects of sexual intercourse in young, healthy, potent male volunteers.
We recruited 12 male medical students 21 to 24 years old into the study. A disorder-free medical history, availability of a sexual partner and normal erectile function were the inclusion criteria. All subjects completed 3 sessions of 3 nights of recording using the RigiScan* device with at least a 3-day interval between recordings. During the last 3-night recording subjects were asked to have sexual intercourse at least once. Analysis of the recordings was focused on the best erectile event as well as on rigidity and tumescence activity units normalized per hour.
The subjects completed 36, 3-night recordings. Of the total of 108 sessions 18 occurred after sexual intercourse. We analyzed 562 erectile episodes. All 3-night recordings included at least 1 episode of rigidity at the penile tip greater than 60% and more than 10 minutes in duration. Sexual intercourse did not significantly affect nocturnal penile tumescence and rigidity. When rigidity and tumescence activity unit values were normalized by the hour and expressed as mean values of the 3-night sessions, documented values became reproducible.
At least 2 consecutive nights of recording are necessary to evaluate nocturnal penile tumescence and rigidity recordings. Nocturnal penile tumescence and rigidity with at least 1 erectile episode of tip penile rigidity greater than 60% and 10 minutes in duration may be associated with potency. Mean rigidity and tumescence activity unit values per hour of a recording may be used as objective parameters to measure overall erectile activity. In addition, sexual intercourse seems to decrease nocturnal penile tumescence and rigidity measurements, although not statistically significant. We anticipate that application of these criteria for nocturnal penile tumescence and rigidity evaluation will improve the diagnostic validity of the test. Future research will determine whether these criteria are too strict for the evaluation of aging men.
我们研究了夜间阴茎勃起、硬度评估标准的可重复性以及性交对年轻、健康、性功能正常的男性志愿者的可能影响。
我们招募了12名年龄在21至24岁之间的男性医学生参与研究。纳入标准为无疾病病史、有性伴侣且勃起功能正常。所有受试者使用RigiScan*设备完成3个疗程，每个疗程记录3晚，记录之间至少间隔3天。在最后一个3晚记录期间，要求受试者至少进行一次性交。记录分析集中在最佳勃起事件以及每小时标准化的硬度和肿胀活动单位。
受试者完成了36次3晚记录。在总共108个疗程中，18次发生在性交之后。我们分析了562次勃起事件。所有3晚记录均包括至少1次阴茎头部硬度大于60%且持续时间超过10分钟的硬度事件。性交对夜间阴茎勃起和硬度没有显著影响。当硬度和肿胀活动单位值按小时标准化并表示为3晚疗程的平均值时，记录值变得具有可重复性。
评估夜间阴茎勃起和硬度记录至少需要连续记录2晚。夜间阴茎勃起和硬度，至少有1次阴茎头部硬度勃起事件大于60%且持续10分钟，可能与性功能正常有关。记录中每小时的平均硬度和肿胀活动单位值可作为衡量整体勃起活动的客观参数。此外，性交似乎会降低夜间阴茎勃起和硬度测量值，尽管在统计学上不显著。我们预计应用这些标准进行夜间阴茎勃起和硬度评估将提高测试的诊断有效性。未来的研究将确定这些标准对老年男性的评估是否过于严格。
