BACKGROUND Laser resurfacing has become a popular modality for the treatment of photodamaged skin, rhytids, and acne scarring. In many cases, this procedure is performed under general anesthesia or intravenous sedation in conjunction with nerve blocks and local infiltration. OBJECTIVE To evaluate the safety and efficacy of facial carbon dioxide laser resurfacing using a supplemented topical a...

OBJECTIVE To determine the role of transoral laser resection of supraglottic carcinomas. DESIGN Retrospective unicenter study of the oncologic results of transoral carbon dioxide laser microsurgery for supraglottic carcinomas performed between February 1979 and December 1993. Median follow-up was 37 months. SETTING University hospital academic tertiary referral center. PATIENTS We reviewe...

In this work, the adsorption of carbon dioxide from model flue gas on different adsorbents has been investigated. Using simplified modeling, parameters such as the total mass transfer coefficient and the effective diffusivity have been determined. Experiments were carried out in two sections: firstly, adsorption of pure carbon dioxide on different adsorbents was measured at pressures ranging fr...

OBJECTIVE To assess mature burn scars treated with a fractional carbon dioxide laser for changes in histological architecture, type I to III collagen ratios, density of elastic tissue, and subjective measures of clinical improvements. DESIGN Uncontrolled, prospective study of patients with mature burn scars, from a clinical and histological perspective. Biopsy specimens were obtained before a...

Accepted: February 20, 2009 SUMMARY A case of massive rhinophyma that produced significant functional and cosmetic difficulties was treated using electrosurgery and carbon dioxide laser. Minimal bleeding occurred during the operative procedure despite grotesque enlargement and high degree of vascularity of the skin and soft tissue. Using this technique, restoration of normal function and excell...

Development of voice after tracheoesophageal puncture, following laryngectomy, is sometimes hampered by spasm of the cricopharyngeal muscle. This problem has been addressed by various means, including bougienage, botulinum toxin injection, and open surgical division of the muscle. We believe that endoscopic carbon dioxide laser cricopharyngeal myotomy represents a direct, simple, and effective ...

introduction: providing desirable smile is one of the main concerns in cosmetic dentistry. hyperpigmentation is one of the esthetic concerns especially in gummy smile patients. lasers with different wavelength are used for oral surgery including carbon dioxide laser (co2), neodymium-doped yttrium aluminium garnet (nd:yag), erbium family and diode laser. in this case, all esthetic procedures inc...

Tonsillectomy in children is performed on a regular basis in ENT. The indications are chronic tonsillitis, sleep apnea to deeper structures. The natural history of tonsillar hyperplasia is regression when a child is six years beyond. In children with bilateral tonsillar hyperplasia we studied the use of laser as an alternative procedure to reduce the bulk of the tonsillar mass. Children with sy...

We report the development of a differential absorption lidar instrument (DIAL) designed and built specifically for the measurement of anthropogenic greenhouse gases in the atmosphere. The DIAL is integrated into a commercial astronomical telescope to provide high-quality receiver optics and enable automated scanning for three-dimensional lidar acquisition. The instrument is portable and can be ...