Evaluation of a New Method for the Treatment of Invasive, Diffuse, and Unexcisable Lymphangiomas of the Oral Cavity with Defocus CO2 Laser Beam: A 20-Year Follow-Up

Photomedicine and Laser Surgery
Samir NammourToni Zeinoun

Abstract

The aim of our study is to evaluate the efficiency of a new therapeutic method using CO2 laser to avoid mutilation or total excision for the treatment of invasive, large and unexcisable oral lymphangiomas. Cystic lymphatic malformations, or lymphangiomas, are mature lymphatic malformations, consisting of abnormal lymphatic vessels. Surgical excision is considered by most surgeons to be the treatment of choice for lymphangioma. Laser beam has been used to treat superficial or small lymphatic malformations by excision or by photocoagulation, and to excise or photocoagulate small lymphangiomas. Seventeen patients with diffuse and unexcisable lymphangiomas were treated using a CO2 laser with specific settings: beam was 2 W in noncontact and defocus mode, power density was 0.63 W/cm2 for irradiation time in the range of 3-5 min, and the estimated energy density range was 114.65-191.02 J/cm2. The beam diameter at the tissular impact point was ±2 cm. The laser beam was defocused to provoke a deep heat generation that would dry up the lymphatic tissues and induce deep tissue necrosis that heals by fibrous tissue process. The results were satisfactory and stable, with localized recurrence in three cases. The recurrent areas were re-trea...Continue Reading

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Citations

Mar 1, 2019·Plastic and Reconstructive Surgery·Motoi KatoAzusa Watanabe
Oct 28, 2019·Medicine·Wencheng YuHaihong Gong
Apr 11, 2020·Journal of Lasers in Medical Sciences·Amanda Vieira AiresRicardo Alves Mesquita
Jan 17, 2020·Plastic and Reconstructive Surgery. Global Open·Motoi KatoTakuya Iida

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