Scrimali Luca, Tamburino Serena
University of Catania, Plastic Surgery , Catania , Italy.
J Cosmet Laser Ther. 2014 Jun;16(3):129-31. doi: 10.3109/14764172.2013.877747. Epub 2014 May 6.
Since 1960, when Maiman built the first laser equipment, this technology has gone through a continuous development and an increasing utilization in several fields. Nowadays many pathologies find a less traumatic solution in laser technology. Laser can be either used to treat lesions with a high bleeding risk such as hemangioma and lymphangioma or in patients with coagulation diseases or hypertension, taking advantage of its capability to coagulate. Moreover healing and scarring are improved by the laser's effect of biostimulation and inhibition of bacterial growth, this leading to a greater comfort for the patient. The tissue vaporization and the dimension of the damaged area depend on several factors, those related to the laser used, such as wavelength, power, emission mode (continued or pulsed mode) and the power density, and those concerning to the treated tissue, like color and consistency. In this Study, we used an Lithium Borate, (LBO), laser, instead of scalpel for earlobe reduction in a 35-year-old male patient with pending lobule. LBO laser works through a solid active medium emitting a visible green light. A diode laser, with a wavelength of 810 nm, stimulates a crystal of Nd:YAG, which has a wavelength of 1064 nm. Then a crystal of LBO doubles the vibration frequency of the photons, leading to a final wavelength of 532 nm.
自1960年迈曼制造出第一台激光设备以来,这项技术不断发展,并在多个领域得到越来越广泛的应用。如今,许多病症在激光技术中找到了创伤较小的解决方案。激光可用于治疗诸如血管瘤和淋巴管瘤等高出血风险的病变,也可用于患有凝血疾病或高血压的患者,利用其凝血能力。此外,激光的生物刺激和抑制细菌生长的作用改善了愈合和瘢痕形成,这为患者带来了更大的舒适度。组织汽化和受损区域的大小取决于几个因素,与所使用的激光相关的因素,如波长、功率、发射模式(连续或脉冲模式)和功率密度,以及与被治疗组织相关的因素,如颜色和质地。在本研究中,我们使用硼酸锂(LBO)激光,而非手术刀,为一名35岁有耳垂悬垂的男性患者进行耳垂缩小手术。LBO激光通过发射可见绿光的固体活性介质工作。波长为810nm的二极管激光激发波长为1064nm的Nd:YAG晶体。然后LBO晶体使光子的振动频率加倍,最终波长为532nm。