吊灯光纤探头引起的热损伤。
Thermal injury caused by chandelier fiber probe.
作者信息
Shimada Hiroyuki, Nakashizuka Hiroyuki, Hattori Takayuki, Mori Ryusaburo, Mizutani Yoshihiro
机构信息
Department of Ophthalmology, School of Medicine, Surugadai Hospital of Nihon University, 1-8-13 Surugadai, Kanda, Chiyodaku, Tokyo 101-8309, Japan.
出版信息
Am J Ophthalmol. 2007 Jan;143(1):167-9. doi: 10.1016/j.ajo.2006.07.049. Epub 2006 Sep 1.
PURPOSE
To investigate thermal changes produced by a chandelier fiber probe (CFP).
DESIGN
Interventional single case report and laboratory investigation.
METHODS
When CFP was used for 25-gauge vitrectomy, an abnormal odor was emitted, and the CFP was instantly removed. To investigate this incident, the thermal change produced by the CFP was measured in air by means of an infrared sensor. Porcine Tenon capsular tissue was used to reproduce the intraoperative phenomenon.
RESULTS
In our patient, the CFP tip melted, but this did not affect visual function. In the experiment, the uncoated CFP reached 49 C (120 F) at maximum illumination. When porcine Tenon capsular tissue was attached to the CFP tip, a temperature of 144 C (291 F) was reached at 50% of maximum illumination, and over 201 C (394 F) at 75%. The tip melted under these conditions.
CONCLUSIONS
At present, we avoid the use of CFP during air exchange. This potential hazard of the CFP needs to be addressed.
目的
研究吊灯光纤探头（CFP）产生的热变化。
设计
介入性单病例报告及实验室研究。
方法
在使用CFP进行25G玻璃体切割术时，发出异常气味，CFP随即被立即移除。为调查该事件，通过红外传感器在空气中测量CFP产生的热变化。使用猪的眼球筋膜囊组织重现术中现象。
结果
在我们的患者中，CFP尖端熔化，但这未影响视觉功能。在实验中，未涂层的CFP在最大光照时达到49℃（120℉）。当猪眼球筋膜囊组织附着于CFP尖端时，在最大光照的50%时温度达到144℃（291℉），在75%时超过201℃（394℉）。在这些条件下尖端熔化。
结论
目前，我们在空气交换期间避免使用CFP。CFP的这种潜在危害需要得到解决。
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