PMID: 11320621Apr 26, 2001Paper

Results of an in vitro study and initial clinical application of a combined Ho:YAG-/Nd:YAG laser

HNO
U W GeisthoffH Iro

Abstract

A combined Ho:YAG/Nd:YAG laser produces light with properties similar to the beams of the mainly coagulating Nd:YAG laser and the cutting CO2 laser alone. The combined laser was tested in vitro on pig tissue. Additionally, we used this new combined tool for enoral operations. An effect of the pulsed Ho:YAG laser was explosive-like tissue disruption and sprinkling of fragments. Simultaneous use of the Nd:YAG laser resulted in an enlarged zone of coagulation. Clinically, the laser-assisted intervention was inferior to the classic operational methods. Comparing the established CO2 laser and the Ho:YAG laser, the latter showed only the advantage of delivery via a flexible fiber. Sprinkling of tissue fragments and wide incisions are oncologically problematic. We conclude that this new tool is of minor value for otorhinolaryngologists and head and neck surgeons.

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