Application of Laser in ENT
Laser is now universally accepted as the most advanced technological tool in various specialities of surgery. However the properties of all lasers are not alike and surgeries in the ENT field have advanced significantly with the introduction of Diode Laser.
Laser is the light with the best directivity in the world. Due to its extremely small divergence angle, it looks almost parallel to the naked eye, making the laser energy highly concentrated. The thermal effect of the laser on the organism is used, that is, the tissue is destroyed by the method of instantaneous high temperature. The high temperature generated by the high-intensity laser can solidify, vaporize, carbonize and cut the tissue in an instant. Lasers are not an unfamiliar concept and have been widely adopted in many areas of clinical medicine. The advent of CO2 laser has created the clinical application of otolaryngology surgery laser. Then, the advent of high-power diode laser provides good conditions for the development of ENT laser surgery.
Diode Laser offers the most bloodless surgery available today. This laser is especially suited for ENT works and finds application in various aspects of surgery in the ear, nose, larynx, neck etc. With introduction of Diode Laser, there has been a significant improvement in the quality of ENT surgery.
The commonly used lasers in ENT till date were CO2 (carbondioxide), argon laser and Nd: YAG laser. The diode laser, 980 nm wavelength which was invented and introduced to the field of ENT surgery recently, combines the beneficial effects of all these lasers into one. The tissue cutting effect is comparable to that of CO2 laser, its coagulation effects are comparable to that of argon laser, and it results in a slightly higher degree of absorption by tissue than does the ND: YAG laser.
This a lightweight, portable 980nm wavelength Diode laser with a fiber optic delivery system is being used widely the field of otolaryngology, as it is more affordable.
Advantages in ENT
High precision ablation
Fast and gentle outpatient treatments
Mini-invasive surgery through flexible fiber optics
Easy operation, can be introduced by endoscope
Less postoperative trouble
1 It can be used in contact mode, in which the tip of the fiber is placed directly on the surface of the tissue. This mode is effective for both photocoagulation and vaporization of tissue, depending on the power density. At the low- or mid-power range, coagulation occurs; at a higher level, vaporization occurs.
2The laser can be used in near-contact mode, in which the tip of the fiber remains several millimeters apart from the tissue. This mode is largely used for tissue photo coagulation.