Laser Applications in the Subglottic Larynx and Cervical Trachea

The CO2 laser has remained the laser of choice for precise excision of scar tissue and treatment of benign tumors in the subglottic area. However, this laser possesses poor hemostatic properties and is unable to deliver focused energy through a flexible fiber, resulting in severe limitations for treatment of hyper-vascular tumors and lesions located in the distal airway.

The Nd:YAG laser has become the laser of choice for vascular tumors such as venous malformations and obstructing tumors of the airway. Diverse conditions involving the subglottic larynx and cervical trachea require different lasers. A positive treatment outcome depends on the adequate selection of the laser to be used, according to its soft tissue interactions, emphasizing the histologic properties of the pathological condition to be treated. The use of lasers in the tracheobronchial tree is appropriate for a number of conditions, both congenital and acquired, involving patients in every age group. Some of these lesions include vascular malformations, systemic conditions, viral infections, and malignant conditions (Table 37-2).

How To Reduce Acne Scarring

How To Reduce Acne Scarring

Acne is a name that is famous in its own right, but for all of the wrong reasons. Most teenagers know, and dread, the very word, as it so prevalently wrecks havoc on their faces throughout their adolescent years.

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