Lasers in Otorhinolaryngology - Current Topics in by Karl Bernd Huettenbrink, Karl-Bernd Huettenbrink

By Karl Bernd Huettenbrink, Karl-Bernd Huettenbrink

Lasers have been first used for surgical procedure of the larynx within the Seventies. meanwhile, using laser expertise has came upon functions in lots of different components of head and neck surgical procedure. This paintings represents a cutting-edge 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 e-book is rounded off through a superb bankruptcy on lasers in ear and listening to examine. Lasers in Oto-Rhino-Laryngology is definitely the right creation to this critical surgical instrument.

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Moreover, the laser beam profile becomes imprecise when the beam is defocused, also resulting in less effective perforation. For the reasons stated, computer-controlled scanner systems that move the focused laser beam in a programmed pattern are a better way to increase the spot size than the application of a defocused beam. Acute Otitis Media With Vestibulocochlear Complications Acute otitis media (AOM) is a bacterial infection that generally develops in the wake of a viral infection. Rarely, it leads to vestibulocochlear complications with impaired hair-cell function of the auditory and vestibular apparatus—presumably a toxic insult caused by bacterial products.

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.

Riorate after the procedure. This may result from ossicular dislocation, prosthetic migration, and/or adhesions in the middle ear space restricting the mobility of the reconstructed chain. In other cases the cause may be tympanosclerotic changes with the fixation of individual ossicular chain elements. Laser technology can assist in the treatment of these conditions in several ways. Diagnostically, a laser myringotomy can be combined with transtympanic endoscopy using a 0° or 30° scope, as an outpatient procedure under local anesthesia.

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