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Trapped Guide Extension Catheter Technique for Management of Coronary Artery Perforation in a Balloon Uncrossable
Paul Jie Wen Tern1, Jonathan Jiunn Liang Yap2, Shoji Sagrado Mantilla3
1Department of Cardiology, National Heart Centre Singapore, Singapore.
Insights
A novel trapped guide extension catheter technique effectively treats coronary artery perforations in challenging calcified segments. This method provides crucial support for percutaneous coronary intervention, improving outcomes in complex cases.
Area of Science:
- Interventional Cardiology
- Vascular Surgery
Background:
- Coronary artery perforations pose significant risks during percutaneous coronary intervention.
- Heavily calcified and uncrossable segments present unique challenges for device delivery and support.
Observation:
- A technique involving a trapped guide extension catheter was utilized to manage coronary artery perforations.
- This method involves using a tamponading balloon and a second guide catheter to secure the extension catheter.
Findings:
- The trapped guide extension catheter provides robust support for deploying covered stents or performing percutaneous coronary intervention in perforated vessels.
- This technique facilitates successful treatment even in complex, calcified, and previously uncrossable coronary segments.
Implications:
- This approach offers a viable solution for managing complex coronary artery perforations, potentially reducing procedural complications.
- It expands treatment options for interventional cardiologists facing difficult anatomies and vessel injuries.
Objective:
The purpose of this report is to describe the use of a trapped guide extension catheter technique in the treatment of coronary artery perforations in heavily calcified and uncrossable segments.
Key Steps:
Following a coronary artery perforation, stabilize the patient and maintain hemostasis with a tamponading balloon from the first guide catheter (GC). Obtain separate arterial access and introduce a second GC. Disengage the first GC and engage with the second GC. Rewire from the second GC with brief deflations of the tamponading balloon. This can be facilitated by trapping a microcatheter between the tamponading balloon to allow time to wire while maintaining hemostasis. Introduce a guide extension catheter via the second GC into the coronary artery, align the tamponading ballon from the first GC, and inflate at low pressures to the trap the guide extension catheter. Proceed with deployment of covered stent/percutaneous coronary intervention making use of this strong support.
Potential Pitfalls:
The potential pitfalls include the following: 1) prolonged inflation of trapping balloon may cause ischemia and hypotension, and 2) caution when used in proximal vessels that subtend a large area of the myocardium. Excessively high-pressure inflation of the trapping balloon may damage the coronary artery.
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