Extended use of the GuideLiner in complex coronary interventions

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Devices

Background:

• Challenging coronary anatomies like chronic total occlusions (CTOs), tortuous vessels, diseased bypass grafts, and anomalous coronary arteries complicate interventional procedures.
• The GuideLiner is a monorail catheter designed to aid stent delivery in tortuous coronary vessels.

Purpose of the Study:

• To assess the feasibility and safety of using the GuideLiner catheter in a broader range of complex coronary interventions.
• To evaluate the GuideLiner's utility beyond its initial indication for tortuous vessels.

Main Methods:

• A prospective study included consecutive patients undergoing coronary or peripheral interventions utilizing the GuideLiner catheter.
• Data collected included patient demographics, lesion and vessel characteristics, procedural details, and outcomes.
• Analysis focused on 54 coronary interventions performed between September 2009 and October 2011.

Main Results:

• The GuideLiner was used in 54 coronary interventions, with 21 cases (39%) requiring support for chronic total occlusions (CTOs), primarily in the Right Coronary Artery (RCA).
• Other indications included anomalous take-offs (31%), prior stents (15%), calcification (9%), and tortuosity (7%).
• Procedural success was high at 98%, with no device-related periprocedural complications like ostial dissection or myocardial necrosis. One renal denervation was also successful.

Conclusions:

• The GuideLiner catheter effectively facilitates complex coronary interventions, including CTOs and saphenous vein graft interventions.
• It provides enhanced back-up support and simplifies engagement of coronary ostia in challenging anatomies.