Hybrid atherectomy for lower extremity peripheral arterial disease

Area of Science:

• Vascular Surgery
• Interventional Cardiology
• Medical Device Technology

Background:

• Lower extremity peripheral arterial disease (LE-PAD) significantly impacts patient mobility and quality of life.
• Occlusive and severe LE-PAD often requires advanced revascularization techniques.
• Directional atherectomy offers a minimally invasive approach to treat arterial blockages.

Purpose of the Study:

• To evaluate the efficacy and safety of the Phoenix atherectomy system for treating severe and occluded LE-PAD.
• To assess technical, procedural, and clinical success rates in patients undergoing directional atherectomy.
• To compare outcomes between superficial femoral artery (SFA) and popliteal artery interventions.

Main Methods:

• Retrospective review of 120 patients with severe, occluded LE-PAD treated with the Phoenix atherectomy system.
• Data collected included demographics, procedural details, and follow-up information.
• Technical, procedural, and clinical success were defined and reported based on established criteria.

Main Results:

• Overall technical success was 97.7% (SFA: 96.7%, Popliteal: 98.1%).
• Overall procedural success was 91.1% (SFA: 91.7%, Popliteal: 90.4%).
• High clinical success rate of 98.2% was observed, with Rutherford classification improvement in most patients.

Conclusions:

• Directional atherectomy with the Phoenix system is a safe and effective treatment for severe LE-PAD.
• The system demonstrates comparable outcomes to those reported in existing literature for similar interventions.
• The procedure achieved high success rates with low rates of major adverse events.