Uso de láser KTP para el tratamiento fonomicroquirúrgico del cáncer glótico y otras lesiones benignas de la laringe: análisis comparativo con el láser de CO2.

BACKGROUND: CO2 laser has been the laser of choice in laryngology for decades and has served as a reference for the development of new types of laser. OBJECTIVES: To analyze the characteristics of CO2 and other types of available lasers, as well as to demonstrate de usefulness of photoangiolytic lasers, specifically KTP, for microphonosurgery. MATERIAL AND METHODS: We reviewed medical literature searching for the otolaryngologic applications of the different types of available lasers, primarily in thefield of laryngology. A comparative analysis -was then conducted: between CO2 and photoangiolytic lasers and between the two most commonly used photoangiolytic lasers: PDL vs KTP. The practical use of these lasers was demonstrated with clinical cases. RESULTS: CO2 laser has a high absorption affinityfor -water, for that it is highly ejfectiveforfine tissue cutting and bloc resections. Photoangiolytic lasers, specifically KTP laser, have a high absorption affinity for oxyhemoglobin, so they are a useful alternative for vascular and tumoral lesions that are in intimate contact with the delicate vocal fold epithelium. CONCLUSIONS: Photoangiolytic lasers, specifically KTP, must be considered a useful alternative in vascularized laryngeal lesions. This particular type of laser offers great advantages over CO2 laser, as lowering the risk of inadequate scarring as well as maintaining the integrity ofvocal fold epithelium and superficial laminapropria (SEP). [ABSTRACT FROM AUTHOR]