By Karl Bernd Huettenbrink, Karl-Bernd Huettenbrink
ISBN-10: 1423788176
ISBN-13: 9781423788171
ISBN-10: 1588903303
ISBN-13: 9781588903303
ISBN-10: 3131402512
ISBN-13: 9783131402516
Lasers have been first used for surgical procedure of the larynx within the Nineteen Seventies. meanwhile, using laser know-how has chanced on purposes in lots of different parts of head and neck surgical procedure. This paintings represents a state of the art replace at the use of lasers in otology; rhinology; illnesses of the oral hollow space and oropharynx; for benign lesions of the larynx, hypopharynx and trachea; for malignant leasions of the aerodigestive tract; and in dermatology (including interstitial therapy). The publication is rounded off by means of an outstanding bankruptcy on lasers in ear and listening to study. Lasers in Oto-Rhino-Laryngology is the right creation to this integral surgical device.
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Additional resources for Lasers in Otorhinolaryngology - Current Topics in Otolaryngology-Head and Neck Surgery
Sample text
When used in chronic otitis media surgery, the laser permits noncontact ossicular work and soft-tissue ablation with almost no bleeding. Fig. 05 s). To date there have been no detailed studies on laser use in chronic ear surgery. Thedinger [95] reported on the use of 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 36 Lasers in Otology 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 the KTP laser in 103 cases of chronic otitis media following tympanoplasty and mastoidectomy.
If conservative therapy is ineffective or if rapid hearing improvement is desired, a laser myringotomy is done using the same parameters as in the treatment of SOM (see above). If effusion is not definitely present, the laser should be used at a reduced power setting. Barotrauma Barotrauma results from a rapid change in ambient pressure in the presence of eustachian tube dysfunction. It can occur during flying, diving, or rapid altitude changes in the mountains when acutely painful positive pressure, or rarely negative pressure, develops in the middle ear causing a bulging or retraction of the tympanic membrane.
Defocusing the laser beam to create a larger myringotomy reduces the power density at the target in proportion to the square of the radius of the irradiated area. The power setting must be increased considerably to achieve effective power density. Defocusing the beam to a 2-mm spot size would require a power setting of approximately 60 W to achieve the effective power density indicated above. Moreover, the laser beam profile becomes imprecise when the beam is defocused, also resulting in less effective perforation.
Lasers in Otorhinolaryngology - Current Topics in Otolaryngology-Head and Neck Surgery by Karl Bernd Huettenbrink, Karl-Bernd Huettenbrink
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