August 1986

Lnaser Welding of Venotomies

Author Affiliations

From the Departments of Surgery (Drs White and Klein and Mr Kopchok) and Medicine (Drs Abergel, Dwyer, and Uitto), Harbor-UCLA Medical Center and UCLA School of Medicine.

Arch Surg. 1986;121(8):905-907. doi:10.1001/archsurg.1986.01400080047008

• We investigated the histologic and biochemical effects of carbon dioxide and neodymium (Nd)-YAG laser welding on the healing of venotomies. Ten canine femoral venotomies 2 cm in length were approximated and welded with 10 600-nm wavelength, 1-W power over 20 to 25 s for CO2 laser, and 1060-nm wavelength, 1-W power over 30 to 40 s for Nd-YAG laser. On removal at one to three weeks, all veins (4/4 welded by CO2 and 6/6 by Nd-YAG) were patent without hematomas. Histologic and biochemical analyses of the venous tissues demonstrated active healing at the venotomy sites. We conclude that the CO2 and Nd-YAG lasers can be used successfully to weld venotomies and may provide an alternative to conventional suture techniques for repair of vascular lesions.

(Arch Surg 1986;121:905-907)