Ho C, Nguyen Q, Lask G, Lowe N
Division of Dermatology, UCLA Medical Center, USA.
Dermatol Surg. 1995 Dec;21(12):1056-9. doi: 10.1111/j.1524-4725.1995.tb00558.x.
The new Ultrapulse carbon dioxide (CO2) laser technology has added a new dimension to many cosmetic surgery procedures including hair transplantation. Early reports by Unger and David (Laser Hair Transplantation. J Dermatol Surg Oncol 1994;20:515-21) have been encouraging with the potential of minimal bleeding, ease of placing transplanted grafts, and an overall shortened operative time. A 2-mm slit handpiece has been recently created to expedite this procedure.
The purpose of this study is to further investigate the use and efficiency of the new Ultrapulse CO2 laser slit handpiece in hair transplants.
Mini-slit graft hair transplants using the new Ultrapulse CO2 laser slit handpiece were done on 25 patients in 30 transplant sessions. Donor minigrafts were obtained by the strip harvesting technique using a triple-blade scalpel. Approximately 200-400 recipient slits were made with the 2-mm slit handpiece at the laser setting of 350 mJ, 12 W, 0.8 seconds per pulse.
All grafts were easily placed into recipient sites with minimal bleeding and charring. The procedure was done in half the time of the conventional non-laser technique. Postoperatively, patients were quite satisfied with little pain and swelling. Histologic exams of the laser-treated slits showed minimal adjacent tissue necrosis. Long-term follow-up visits showed good regrowth of hair in these grafts.
The new Ultrapulse CO2 laser slit handpiece proved to be an effective tool for mini-slit graft hair transplantation.
新型超脉冲二氧化碳（CO₂）激光技术为包括毛发移植在内的许多整形手术增添了新的维度。昂格尔和大卫早期的报告（《激光毛发移植》。《皮肤病外科学与肿瘤学杂志》1994年；20:515 - 21）令人鼓舞，该技术具有出血少、移植毛囊易于放置以及总体手术时间缩短的潜力。最近研发出了一种2毫米的狭缝手持件以加快这一手术进程。
本研究的目的是进一步探究新型超脉冲CO₂激光狭缝手持件在毛发移植中的应用及效率。
使用新型超脉冲CO₂激光狭缝手持件对25例患者进行了30次微型狭缝移植毛发移植手术。供体微型毛囊通过使用三刀片手术刀的条带采集技术获取。在激光设置为350毫焦、12瓦、每脉冲0.8秒的情况下，用2毫米狭缝手持件制作了约200 - 400个受体狭缝。
所有毛囊都能轻松放置到受体部位，出血和碳化极少。该手术所用时间仅为传统非激光技术的一半。术后，患者对轻微的疼痛和肿胀相当满意。对激光处理的狭缝进行组织学检查显示相邻组织坏死极少。长期随访显示这些毛囊中的毛发再生良好。
新型超脉冲CO₂激光狭缝手持件被证明是微型狭缝移植毛发移植的有效工具。
