Laser-assisted microvascular anastomosis of human adult and placental arteries with expanded polytetrafluoroethylene microconduit. Discussion

Laser-assisted microvascular anastomoses can be performed more quickly than sutured anastomoses, yet manifest similar patency rates and tensile strength. This study was undertaken to determine if in vitro laser-assisted microvascular anastomoses could be created between human adult arteries (anterior tibial arteries), human placental arteries, and expanded polytetrafluoroethylene microconduits. A CO 2 laser was applied in single or continuous bursts with a matrix of variables encompassing power P=80 to 160 mW, spot size SS=150 to 500 μm, and exposure time EXP=1.0-second continuous exposure (n=2 each composite setting)