Native Coronary and Bypass Graft Cannulation Through Transradial Approach: Technical Considerations

Area of Science:

• Interventional Cardiology
• Vascular Access Techniques
• Coronary Angiography

Background:

• Successful coronary cannulation is crucial for interventional cardiology procedures.
• Limited literature exists on transradial techniques for coronary and bypass graft cannulation.
• This review addresses challenges and solutions in transradial coronary access.

Purpose of the Study:

• To discuss transradial approach (TRA) methods for accessing coronary arteries and bypass grafts.
• To optimize angiographic results and support interventional procedures using TRA.
• To provide insights into overcoming challenges in transradial coronary cannulation.

Main Methods:

• Description of successful TRA methods for routine and challenging coronary and bypass graft cannulation.
• Based on the experience of high-volume radial operators.
• Review of techniques for specific anatomical challenges and catheter types.

Main Results:

• Catheter-vascular interactions differ between radial and femoral approaches, impacting TRA success.
• Techniques for cannulating anomalous coronary origins and using specialized catheters are detailed.
• Specific methods for internal mammary artery cannulation via contralateral radial artery are presented.

Conclusions:

• TRA has lower complication rates than transfemoral approach (TFA) but slower adoption, especially for bypass grafts.
• Anatomical challenges significantly influence TRA success in coronary and bypass graft cannulation.
• A systematic approach and understanding of challenges improve TRA procedural success and quality.