[Angioplasty using a Nd:YAG laser with a sapphire probe]

Area of Science:

• Vascular Surgery
• Interventional Cardiology
• Medical Engineering

Context:

• Peripheral artery occlusive disease (PAOD) significantly impacts patient mobility and quality of life.
• Conventional treatments like balloon angioplasty have limitations, especially in complex lesions.
• Minimally invasive endovascular techniques are continuously evolving to improve treatment outcomes.

Purpose:

• To evaluate the efficacy and safety of laser-assisted balloon angioplasty using Sapphire Contact Probes and Nd:YAG laser for femoropopliteal and iliac artery occlusions.
• To determine the initial angiographic success and early clinical outcomes of this combined endovascular approach.
• To assess the patency rates and complications associated with laser-assisted balloon angioplasty.

Summary:

• A study involving 30 patients with femoropopliteal (26) and iliac (4) artery occlusions utilized laser angioplasty with Sapphire Contact Probes and Nd:YAG laser, followed by balloon angioplasty.
• Initial angiographic success was achieved in 83% of procedures (25/30), with high success rates in both femoropopliteal (84%) and iliac (75%) arteries.
• Complications included perforation, subintimal passage, and heavy calcification. Early rethrombosis reduced the primary success rate to 73%. Of the 22 recanalized arteries, 21 remained patent at a mean follow-up of 8.4 months.

Impact:

• Laser-assisted balloon angioplasty demonstrates promising initial success and high long-term patency for complex femoropopliteal and iliac occlusions.
• The technique offers a potential alternative or adjunct to existing revascularization methods.
• Further comparative studies are needed to establish its long-term superiority over conventional balloon angioplasty or thrombolysis.