Telescoping catheter technique for enlarged aortas

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Devices

Background:

• Selective coronary angiography is difficult in patients with a severely dilated ascending aorta.
• Existing guide catheter systems may not provide sufficient reach for these challenging anatomies.

Observation:

• The Terumo
• "five-in-six" system combines a 5Fr guide catheter within a 6Fr guide catheter, extending the reach of the inner catheter tip.
• This system has prior successful applications in advancing balloon catheters and stent delivery devices.

Findings:

• The
• "five-in-six" system was successfully employed for atraumatic selective coronary angiography in a patient with a severely dilated ascending aorta.
• The extended reach of the system facilitated catheter manipulation in a challenging anatomical context.

Implications:

• This technique offers a viable solution for performing selective coronary angiography in patients with severe ascending aortic dilation.
• The
• "five-in-six" system may improve procedural success rates and reduce complications in complex coronary interventions.