Abstract

Objectives. Laser assisted vascular anastomosis (LAVA) has been developed to a stage where clinical use is within reach. Advantages of LAVA are minimal vessel damage, faster operation and the potential for minimally invasive application. Design. A Medline literature search was performed on vessel welding combined with cross-referencing. Results. Four different lasers have mostly been used for LAVA, always in combination with stay sutures. The CO 2 laser has only been used in the early period. Without solder, mean leaking point pressures (LPP) of 754 mmHg ( n=75) were obtained, only slightly lower than in suture controls (LPP=915 mmHg, n=82). At follow-up the percentage of aneurysms was high (overall 12% in n=486). Although Argon LAVA showed moderate success (LPP=146 mmHg, n=125), the first clinical application has been successfully performed. Diode LAVA in combination with solder and dye resulted in an acceptable LPP of 409 mmHg ( n=163) in larger vessels, with a low incidence of aneurysm formation (1% in n=107). Conclusion. At present the diode laser is the most popular. Solder developments resulted in stronger welds and might make stay sutures redundant. The combination of CO 2 laser and solders has not been evaluated and deserves further investigation.

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