Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.
J Sex Med. 2010 Aug;7(8):2891-8. doi: 10.1111/j.1743-6109.2010.01856.x. Epub 2010 May 26.
Electrosurgery has been a surgical application since the late 19th century. Although many urologists take this daily application for granted, the effects of electrical treatment on penile nerves and vessels have not been well documented.
To investigate the electrical characteristics of the penis and erectile tissues and to discover the potential hazards of electrosurgery on the penis.
Measurement of the electrical characteristics of three human penises in order to create models to analyze the effect of electricity on penile nerves and vessels.
Electrical resistivity of the penile shaft, electrical current density, and electric field strength on penile nerves and vessels, proportion of generated heat on the penis and electrical current density of the electrosurgery return electrode.
Electrical resistivity (ρ) of the penile shaft is 127.14 Ω · cm at 500 kHz. Electrical current density (J) of the penis shaft is 71.06 mA/cm(2) , nerve (60.23 mA/cm(2) ), vessel (67.93 mA/cm(2) ), and return electrode (2.11 mA/cm(2) ). Electrical field strength (E) of the whole penis shaft is 9.03 volt/cm. The proportion of generated heat on the penis is four times as much as on other body parts of the circuit.
Potential and subclinical injury to erectile tissue caused by electrosurgery on the penis cannot be underestimated. The injury mechanism can be attributed to a thermal (electrical current) effect and a nonthermal (mainly electrical field) effect. Ways to avoid the electrosurgical injury are: using less power (W)/electrical field and less time, biopolar electrosurgery confining the injured area, ligation to achieve hemostasis, and new laser technologies.
电外科手术自 19 世纪末以来一直是一种外科应用。尽管许多泌尿科医生认为这种日常应用是理所当然的，但电流对阴茎神经和血管的影响尚未得到很好的记录。
研究阴茎和勃起组织的电学特性，发现电外科手术对阴茎的潜在危害。
测量三根人阴茎的电学特性，以建立模型来分析电流对阴茎神经和血管的影响。
阴茎干的电阻率、阴茎神经和血管的电流密度和电场强度、阴茎产生的热量比例以及电外科手术返回电极的电流密度。
阴茎干的电阻率（ρ）在 500 kHz 时为 127.14 Ω·cm。阴茎干的电流密度（J）为 71.06 mA/cm²，神经为 60.23 mA/cm²，血管为 67.93 mA/cm²，返回电极为 2.11 mA/cm²。整个阴茎干的电场强度（E）为 9.03 伏特/cm。阴茎产生的热量比例是身体其他部位的四倍。
电外科手术对阴茎可能会造成潜在的和亚临床的勃起组织损伤，不容忽视。损伤机制可归因于热（电流）效应和非热（主要是电场）效应。避免电外科损伤的方法包括：使用较小的功率（W）/电场和较短的时间、双极电外科将损伤区域限制、结扎以达到止血目的以及新的激光技术。
