CO2 laser is used to resect or vaporise benign and malignant lesions of the upper aerodigestive tract. This chapter focuses on transoral CO2 laser technique using a micromanipulator attached to an operating microscope. The advantages of using CO2 laser with an operating microscope are microsurgical precision, excellent intraoperative detail, and a dry surgical field; the functional outcomes in ...

BACKGROUND CO2 laser surgery is a treatment modality for cutaneous neurofibromas. OBJECTIVE Hypertrophic and atrophic scars can result from treatment with CO2 laser surgery. We present a case of cutaneous neurofibromatosis that developed hypertrophic scars postoperatively. METHODS Continuous wave CO2 laser surgery therapy was applied to the patient. RESULTS Hypertrophic scars developed 2 ...

BACKGROUND A verrucous epidermal nevus (VEN) is a skin disorder that has been treated using different treatment modalities with varying results. Ablative lasers such as carbon dioxide laser (CO2) and erbium:yttrium-aluminum-garnet (Er:YAG) laser have been considered as the gold standard for the treatment of epidermal nevi. OBJECTIVE To evaluate and compare the efficacy, postoperative wound he...

OBJECTIVE Microablative fractional CO2 laser has been proven to determine tissue remodeling with neoformation of collagen and elastic fibers on atrophic skin. The aim of our study is to evaluate the effects of microablative fractional CO2 laser on postmenopausal women with vulvovaginal atrophy using an ex vivo model. METHODS This is a prospective ex vivo cohort trial. Consecutive postmenopaus...

This paper presents a systematic review of long period fiber gratings (LPFGs) written by the CO2 laser irradiation technique. Firstly, various fabrication techniques based on CO2 laser irradiations are demonstrated to write LPFGs in different types of optical fibers such as conventional glass fibers, solidcore photonic crystal fibers, and air-core photonic bandgap fibers. Secondly, possible mec...

The aims of this study were to evaluate the results of CO2 laser surgery alone and CO2 laser surgery combined with radiotherapy in patients with T2N0M0 glottic carcinoma. A retrospective analysis was conducted of 35 cases of T2N0M0 glottic carcinoma. Fourteen patients with normal vocal cord mobility were treated with endoscopic CO2 laser surgery alone. The remaining 21 patients were treated wit...

Methods 60 healthy C57 black mice were randomly allocated to 6 groups including control group, model group, 10.6μm CO2 laser group, 650nm laser group, combined laser group (combined 10.6μm CO2 laser and 650nm laser) and sham group. Each treating group received irradiation from different lasers at Dubi (ST35) for 90s in a total of 15 sessions. The sham group also received treatment with the lase...

Rhinophyma is a benign and disfiguring tumor of the nose, affecting white old men. It represents the end stage of acne rosacea. Hypertrophy of the sebaceous apparatus and fibrosis lead to an enlarged, erythematous nasal tip with comedones. Treatment modalities include Isotretinoin (Which is not effective on severe rhinophyma), freehand scalpel shave, cryosurgery, electrocautery, dermabras...

Absorption coefficients of the carbon dioxide (CO2) were measured at atmospheric pressure and room temperature by photoacoustic technique with a cw, line-tunable, frequency stabilized CO2 laser. The CO2 laser spectrum of our system consists in 53 lines with wavelengths ranging from 9.2 μm to 10.8 μm and power levels below 5 W. Measured values of the CO2 absorption coefficients are typically of ...