Laser technology is used in microscopic direct laryngeal surgery for a variety of indications. Lasers are categorized broadly as photoangiolytic or cutting/ablating lasers, based on the chromophores that absorb their energy. Photoangiolytic lasers such as the 532 nm Potassium-Titanyl-Phosphate (KTP) laser are absorbed selectively by the chromophore hemoglobin, facilitating controlled intravascular coagulation, with preservation of the overlying epithelium and adjacent tissue. Efficacy of the KTP laser has been demonstrated for incision, coagulation, and ablation in vocal fold (VF) surgery.
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