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  • Title: [Holmium:YAG laser surgery. Possibilities for use in inflammatory paranasal sinus diseases].
    Author: Kautzky M, Bigenzahn W, Steurer M, Susani M, Schenk P.
    Journal: HNO; 1992 Dec; 40(12):468-71. PubMed ID: 1493965.
    Abstract:
    A pulsed Holmium: YAG laser (lambda = 2120 nm) was used during functional endoscopic endonasal surgery in ten patients with recurrent chronic inflammation of the paranasal sinuses. The Holmium: YAG laser energy was coupled to a 600 microns core diameter nylon fiber. Power settings of 950 mJ per 2.5 microseconds pulse at 5 pulses per second were used. Tissue responses to treatment were examined by light microscopy. The photoablative mechanism of the laser-tissue interaction led to bone and soft tissue ablation with only a minor thermal component in the target zone. In comparison with other laser types available clinically, there was no carbonization zone after use of the Holmium-YAG laser. The area of tissue damage produced was significantly smaller (370-520 microns only) and wound healing proceeded without complication. The physical settings of the laser equipment are described with regard to their significance in photoablation when using flexible light-conducting fibers. The possible role of the Holmium: YAG laser in clinical surgery is discussed on the basis of the present experience.
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