Transcoronary Rapid Pacing Solving a Complex Retrograde Chronic Total Occlusion Procedure.

Area of Science:

• Cardiovascular Medicine
• Interventional Cardiology
• Cardiac Surgery

Background:

• Chronic total occlusions (CTOs) of the coronary arteries present a significant challenge in interventional cardiology.
• Revascularization of CTOs, particularly the right coronary artery, often requires advanced techniques when conventional approaches fail.
• Epicardial collateral channels are an alternative route for blood supply but can be difficult to access and utilize.

Observation:

• A case is presented involving the revascularization of a right coronary artery CTO.
• The procedure utilized an epicardial collateral pathway for blood flow restoration.
• Transcoronary rapid pacing was employed to achieve transient cardiac standstill.

Findings:

• Cardiac standstill induced by transcoronary rapid pacing facilitated precise puncturing of the distal chronic total occlusion cap.
• Successful revascularization of the right coronary artery CTO was achieved using the epicardial collateral route.
• This represents the first reported instance of employing transcoronary rapid pacing for CTO intervention.

Implications:

• This technique offers a potential new strategy for complex CTO interventions, expanding treatment options.
• The use of cardiac standstill may improve procedural success rates and safety in challenging CTO cases.
• Further research is warranted to evaluate the broader applicability and long-term outcomes of this advanced approach.