Szymański M, Morshed K, Mills R
Department of Otolaryngology, Head and Neck Surgery, Medical University of Lublin, Poland.
J Laryngol Otol. 2007 Jan;121(1):5-8. doi: 10.1017/S0022215106002672. Epub 2006 Nov 1.
We studied the transmission of heat to the vestibule during revision stapes surgery with a piston in situ, using a CO2 laser, in an in vitro model. A type K thermocouple was placed around the medial end of stainless steel and fluoroplastic wire pistons in a 'vestibule' filled with saline. The effect of laser hits on fluoroplastic wire and stainless steel stapes prostheses was investigated. The effect of introducing a vein graft to seal the stapedotomy was also examined. Greater temperature rises occurred with stainless steel than with fluoroplastic wire pistons. The addition of the vein graft reduced heat transmission. Application of the CO2 laser to fluoroplastic wire pistons, using the power settings suggested by the manufacturer, is not likely to damage the inner-ear structures. Application of 6 W laser energy to stainless steel pistons can potentially disturb the inner-ear function.
我们在体外模型中，使用二氧化碳激光，对原位活塞式镫骨翻修手术过程中热量向前庭的传递进行了研究。在充满盐水的“前庭”中，将K型热电偶放置在不锈钢和氟塑料丝活塞的内侧端周围。研究了激光照射对氟塑料丝和不锈钢镫骨假体的影响。还检查了引入静脉移植物封闭镫骨切开术的效果。不锈钢活塞比氟塑料丝活塞产生的温度升高更大。静脉移植物的添加减少了热传递。按照制造商建议的功率设置，将二氧化碳激光应用于氟塑料丝活塞不太可能损害内耳结构。将6W激光能量应用于不锈钢活塞可能会干扰内耳功能。
