Torenvlied Hille J, Trip Evelien, Olthuis Wouter, Segerink Loes I, Beck Jack J H
Department of Urology St. Antonius Ziekenhuis Nieuwegein Netherlands.
Faculty of Electrical Engineering, Mathematics and Computer Science, BIOS Lab on a Chip group Universiteit Twente Enschede Netherlands.
BJUI Compass. 2024 Feb 22;5(4):439-446. doi: 10.1002/bco2.328. eCollection 2024 Apr.
The objective of this study is to assess the impact of overnight environmental conditions on erectile penile temperature within a controlled setting, with the aim of investigating the feasibility of using temperature measurements for nocturnal erection detection in erectile dysfunction diagnostics.
SUBJECTS/PATIENTS AND METHODS: We conducted a proof-of-concept study involving 10 healthy male participants aged 20 to 25. The study was carried out at the Department of Urology, St. Antonius Ziekenhuis, the Netherlands. Penile temperature thermistor measurements were taken during visually aroused erections of participants in naked state and in simulated overnight condition (underwear and blankets). Main outcome variables were peak and baseline temperature during erectile periods. To minimize the impact of differences in erectile strength and duration between consecutive measurements, we applied randomization to the order of the environmental conditions.
We observed a significant increase in penile temperature during erection in both the naked ( < 0.01) and simulated overnight condition ( < 0.01). The mean temperature increase was 1.70 and 0.67C, respectively. While penile temperature returned to baseline immediately after naked erections, the 'Staying Hot effect' was noted in the simulated overnight condition measurements, where the temperature remained elevated at peak temperature for the entire 30-min period following the erection.
The findings from this study indicate that the penile temperature not only significantly increases during naked sexual arousal but is also detectable under simulated overnight conditions. This underscores the potential of using temperature measurements for nocturnal erection detection, representing a crucial initial step in developing a modernized, non-invasive sensor system for ambulatory erectile dysfunction diagnostics. Further research, including an overnight study, is needed to gain insights into the feasibility of utilizing penile temperature measurements for nocturnal erection detection and to assess the impact of the 'Staying Hot effect' on subsequent erection detection.
本研究的目的是在可控环境中评估夜间环境条件对阴茎勃起温度的影响，旨在探讨在勃起功能障碍诊断中利用温度测量进行夜间勃起检测的可行性。
受试者/患者及方法：我们进行了一项概念验证研究，纳入了10名年龄在20至25岁之间的健康男性参与者。该研究在荷兰圣安东尼乌斯医院泌尿外科进行。在参与者处于裸体状态以及模拟夜间条件（穿着内衣和盖着毯子）下视觉诱发勃起期间，进行阴茎温度热敏电阻测量。主要结局变量是勃起期间的峰值温度和基线温度。为了尽量减少连续测量之间勃起强度和持续时间差异的影响，我们对环境条件的顺序进行了随机化。
我们观察到，在裸体状态（<0.01）和模拟夜间条件下（<0.01）勃起期间阴茎温度均显著升高。平均温度升高分别为1.70℃和0.67℃。虽然裸体勃起后阴茎温度立即恢复到基线，但在模拟夜间条件测量中发现了“持续发热效应”，即在勃起后的整个30分钟内，温度在峰值温度时保持升高。
本研究结果表明，阴茎温度不仅在裸体性唤起期间显著升高，而且在模拟夜间条件下也可检测到。这突出了利用温度测量进行夜间勃起检测的潜力，这是开发用于门诊勃起功能障碍诊断的现代化、非侵入性传感器系统的关键第一步。需要进一步的研究，包括夜间研究，以深入了解利用阴茎温度测量进行夜间勃起检测的可行性，并评估“持续发热效应”对后续勃起检测的影响。
