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Evaluation of a new 9F guiding catheter for directional coronary atherectomy
Y Guérin1, E Garcia-Cantu, X Favereau
1Interventional Cardiology Department, Centre Médico-Chirurgical Parly 2, Le Chesnay, France.
Insights
A new 9 French guiding catheter offers a promising alternative for directional atherectomy (DCA), reducing vascular complications. Further design improvements are needed to enhance success rates in this minimally invasive procedure.
Area of Science:
- Interventional Cardiology
- Vascular Surgery
- Medical Device Innovation
Background:
- Large lumen guiding catheters (9.5-11F) are standard for directional atherectomy (DCA).
- These catheters present challenges in manipulation and are associated with ostial trauma and vascular complications.
Purpose of the Study:
- To evaluate a novel 9 French guiding catheter (Vista Brite tip) for accommodating atherectomy catheters (SCA-EX).
- To assess the safety and efficacy of this new guiding catheter in patients undergoing DCA.
Main Methods:
- A preliminary study included 31 consecutive patients undergoing DCA.
- The 9F Vista Brite tip guiding catheter was used, featuring an inner diameter of 0.098 inches.
- Outcomes included primary success rate, ostial trauma, and vascular complications.
Main Results:
- Primary success was achieved in 87% of patients (27/31).
- No ostial trauma was observed, with only two minor groin hematomas reported.
- Two of four initial failures were successfully treated after exchanging to a conventional 10F guiding catheter.
Conclusions:
- The new 9F guiding catheter is a viable alternative for DCA, potentially reducing complications.
- Improved catheter shapes with better back-up support are necessary to increase the primary success rate.
Abstract:
Large lumen guiding catheters (9.5 to 11 French) are currently required to perform directional atherectomy. These rigid guiding catheters require modifications of usual techniques for manipulation and can induce ostial trauma and peripheral vascular complications. A new type of 9 French guiding catheter (Vista Brite tip, Cordis, Miami, FL) with an inner diameter of 0.098 inch and capable of accomodating atherectomy catheters (SCA-EX) was evaluated. In this preliminary study, 31 consecutive patients were included. Primary success was obtained in 27 (87%); no ostial trauma and only two minor groin hematomas were observed. After exchange with a conventional 10F guiding catheter, because of poor back-up, two of the four failures were successfully treated by DCA. In conclusion, these new 9F guiding catheters provide a useful alternative to currently available guiding catheters for DCA. Nevertheless, new shapes with better back-up are necessary to improve the primary success rate.