Selective destruction of facial telangiectasia using a copper vapor laser.
Selective destruction of facial telangiectasia using a copper vapor laser.
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使用铜蒸气激光选择性破坏面部毛细血管扩张。
DOI：
10.1001/archotol.1992.01880050061015
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
M. Waner
中科院分区：
文献类型：
--
作者：
J. M. Key;M. Waner
铜蒸气激光器发射511和578纳米的脉冲光。578 nm选项对应于氧合血红蛋白吸收的峰值和黑色素吸收的减少。这种光的脉冲宽度（20纳秒）明显短于典型的面部毛细血管扩张的热松弛时间（20至100毫秒）。因此，这种激光能够选择性地破坏面部毛细血管扩张血管，对上覆表皮的损伤很小。20例面部毛细血管扩张患者采用578 nm铜蒸汽激光治疗。治疗在办公室进行，没有使用麻醉。20例患者中有18例满意地清除了毛细血管扩张。3例患者出现暂时性炎症后色素沉着，6 ~ 8周内消失，1例患者出现小凹陷疤痕，3个月时不明显。因此，铜蒸气激光治疗面部毛细血管扩张是安全有效的。
Copper vapor lasers emit pulsed light at 511 and 578 nm. The 578-nm option corresponds with a peak in the absorption of oxyhemoglobin and a diminished absorption by melanin. The pulse width of this light (20 nanoseconds) is significantly shorter than the thermal relaxation time of typical facial telangiectatic vessels (20 to 100 milliseconds). This laser is therefore able to selectively destroy facial telangiectatic vessels with little damage to the overlying epidermis. Twenty patients with facial telangiectasia were treated with the 578-nm option of a copper vapor laser. Treatment was administered in an office-room setting, and no anesthesia was used. Eighteen of the 20 patients experienced satisfactory clearance of their telangiectasia. Three patients developed temporary postinflammatory hyperpigmentation, which cleared within 6 to 8 weeks, and one patient developed a small depressed scar, which was not noticeable at 3 months. Copper vapor lasers are thus safe and effective in treating facial telangiectasia.