Snare technique for coronary sinus cannulation in cardiac resynchronization therapy
Daniel Hofer1, Alexander Breitenstein1
1Electrophysiology, Department of Cardiology, University Hospital Zurich, Zurich, Switzerland.
Insights
A novel snare technique successfully enables left ventricular lead implantation when standard coronary sinus cannulation fails in heart failure patients. This approach provides a crucial alternative for biventricular pacing therapy.
Area of Science:
- Cardiology
- Medical Devices
- Electrophysiology
Background:
- Biventricular pacing is a critical treatment for heart failure.
- Lead implantation for biventricular pacing can be challenging due to patient anatomy.
- Coronary sinus cannulation is frequently required for left ventricular lead placement.
Observation:
- A dual approach utilizing a snare from the subclavian vein and an electrophysiology catheter from the femoral vein was employed.
- The snare successfully guided the catheter into the coronary sinus.
- An "over-the-wire" technique allowed advancement of the sheath after catheter engagement.
Findings:
- This dual-approach snare technique overcomes anatomical barriers to coronary sinus cannulation.
- Successful left ventricular lead placement was achieved in a challenging case.
- The method demonstrates feasibility for complex lead implantation procedures.
Implications:
- This technique serves as a valuable "bail-out" strategy for left ventricular lead implantation.
- It expands therapeutic options for heart failure patients requiring biventricular pacing.
- Improved lead implantation success rates can enhance patient outcomes in heart failure management.
Purpose:
Biventricular pacing is a mainstay of therapy for patients with heart failure. However, lead implantations may fail due to anatomical reasons including the impossibility of coronary sinus cannulation.
Methods And Results:
A dual approach from the subclavian vein using a snare through a sheath and from the femoral vein using a steerable electrophysiology catheter was performed. Once the snare hooked the catheter, the latter was advanced into the coronary sinus and finally, the sheath could also be advanced in an "over-the-wire" technique.
Conclusion:
The snare technique for coronary sinus cannulation offers a "bail-out" strategy for left ventricular lead implantation.
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