Ohdaira T, Nagai H, Kayano S, Kazuhito H
Department of General Surgery, Jichi Medical University, Yakushiji 3311-1, Shimotsuki, Tochigi, 329-0498, Japan.
Surg Endosc. 2007 Feb;21(2):333-8. doi: 10.1007/s00464-006-0795-8. Epub 2006 Dec 13.
Lens fogging during laparoscopic surgery extensively deteriorates operative field visibility and may provoke serious complications.
A simulation model study was conducted using a conventional laparoscope, a conventional laparoscope plus heating (100 degrees C, 10 s), a conventional laparoscope plus surfactant, and a conventional laparoscope plus both a titanium dioxide (TiO2)-coated glass (with > or = 15 h of preoperative ultraviolet irradiation) and a water supply. For each, the time from laparoscope insertion into the peritoneal cavity to fogging-induced interruption of surgery was measured.
The TiO2-coated glass had unique verified properties of exerting antifogging effects on the oil film after 15 or more hours of previous ultraviolet irradiation, and of inversely accelerating fogging after less than 15 h of previous ultraviolet irradiation. The clinical study showed later fogging with the TiO2-coated glass model, which successfully completed surgery without retraction of the laparoscope from the peritoneal cavity, as compared with the other models.
An antifogging device using superhydrophilic TiO2-coated glass was very effective in preventing fogging during laparoscopic surgery.
腹腔镜手术期间镜头起雾会严重降低手术视野的清晰度，并可能引发严重并发症。
使用传统腹腔镜、传统腹腔镜加加热（100摄氏度，10秒）、传统腹腔镜加表面活性剂以及传统腹腔镜加二氧化钛（TiO₂）涂层玻璃（术前紫外线照射≥15小时）和供水装置进行模拟模型研究。对每种情况，测量从腹腔镜插入腹腔到因起雾导致手术中断的时间。
TiO₂涂层玻璃具有独特的已证实特性，即在先前紫外线照射15小时或更长时间后对油膜发挥防雾作用，而在先前紫外线照射少于15小时后会加速起雾。临床研究表明，与其他模型相比，TiO₂涂层玻璃模型起雾时间较晚，且该模型成功完成手术，腹腔镜未从腹腔撤回。
使用超亲水TiO₂涂层玻璃的防雾装置在预防腹腔镜手术期间起雾方面非常有效。
