Retrograde Balloon-Assisted Approach to Prevent Distal Embolization During Complex Recanalization Procedures

Area of Science:

• Vascular Surgery
• Interventional Cardiology
• Medical Devices

Background:

• Distal embolization during below-the-knee (BTK) endovascular procedures poses significant risks.
• Existing embolic protection devices (EPDs) for BTK arteries are costly and not widely available.
• There is a need for accessible and effective embolic protection strategies in BTK interventions.

Purpose of the Study:

• To describe a novel bailout technical strategy for preventing distal embolization during high-risk BTK procedures.
• To demonstrate the utility of using universally-available "off-the-shelf" devices for embolic protection.
• To provide a cost-effective alternative to specialized EPDs in BTK interventions.

Main Methods:

• A retrograde access to the BTK target vessel is established.
• A low-profile balloon is inserted and inflated distally before high-risk maneuvers (e.g., atherectomy) to create a "stagnant column" of blood, trapping debris.
• Post-procedure, debris is aspirated antegradely if necessary.

Main Results:

• The described technique effectively prevents distal embolization by trapping debris.
• The method utilizes readily available, inexpensive "off-the-shelf" devices.
• This approach offers a viable solution for high-risk BTK revascularization, especially with single-vessel runoff.

Conclusions:

• A retrograde balloon-assisted embolic protection strategy is a feasible option for BTK revascularization.
• This technique provides effective protection against distal embolization using accessible equipment.
• The approach addresses the limitations of cost and availability associated with traditional EPDs for BTK procedures.