Bass L S, Oz M C, Libutti S K, Treat M R
Institute of Reconstructive Plastic Surgery, NYU Medical Center.
J Clin Laser Med Surg. 1992 Jun;10(3):207-10. doi: 10.1089/clm.1992.10.207.
Attempts to improve the speed and patency of microvascular anastomosis with laser-assisted techniques have provided a modest reduction in operative time and comparable success rates. Using sutureless microvascular anastomoses, 30 end-to-end anastomoses were created in the rat carotid artery using the gallium-aluminum-arsenide diode laser (808 nm). Indocyanine green and fibrinogen were applied to enhance tissue absorption of the laser energy and strengthen the bond created. These were compared with previously reported welds using the THC:YAG laser (2150 nm). Mean welding times were 140 and 288 s, and mean bursting pressures immediately after welding were 515 and 400 mmHg for the diode and THC:YAG laser groups, respectively. Histologically, both lateral and vertical spread of thermal damage was limited. Since both lasers create welds of adequate initial strength without stay sutures and are faster and easier to use than existing systems, evaluation of long-term patency would be worthwhile.
利用激光辅助技术提高微血管吻合速度和通畅性的尝试已使手术时间略有缩短，成功率相当。使用无缝合微血管吻合术，在大鼠颈动脉中使用砷化镓铝二极管激光（808纳米）进行了30次端端吻合。应用吲哚菁绿和纤维蛋白原以增强激光能量的组织吸收并加强形成的结合。将这些与先前报道的使用钬:钇铝石榴石激光（2150纳米）的焊接进行比较。二极管激光组和钬:钇铝石榴石激光组的平均焊接时间分别为140秒和288秒，焊接后立即的平均破裂压力分别为515毫米汞柱和400毫米汞柱。组织学上，热损伤的横向和纵向扩散均受到限制。由于两种激光在无需定位缝线的情况下均可形成具有足够初始强度的焊接，且比现有系统更快、更易于使用，因此对长期通畅性进行评估将是值得的。
