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Coronary angioplasty through 4 French diagnostic catheters
Insights
Coronary angioplasty using 4 French (F) catheters is technically feasible and cost-effective, achieving an 80% success rate for 54 lesions. This approach saves resources by reducing the need for larger guiding catheters and introducer sheaths.
Area of Science:
- Interventional Cardiology
- Medical Device Technology
Background:
- Coronary angioplasty traditionally utilizes larger French size catheters.
- The feasibility of performing angioplasty immediately after diagnostic studies using the same 4 French (F) catheter has not been extensively evaluated.
Purpose of the Study:
- To assess the technical feasibility and economic benefits of performing coronary angioplasty using 4 French (F) catheters immediately after diagnostic procedures.
- To evaluate the success rate and complication profile of 4F catheter-based angioplasty for various lesion types.
Main Methods:
- A prospective study of 50 consecutive patients undergoing coronary angioplasty.
- Utilized 4 French (F) diagnostic catheters and fixed-wire dilatation catheters (Ace, Scimed) for angioplasty.
- Assessed 54 lesions, including multiple, eccentric, and long lesions, without a priori exclusion.
Main Results:
- Successful angioplasty in 43 lesions (80%) using 4F catheters.
- A change to a larger French size was required for 11 stenoses (20%), with 2 failures to cross the lesion.
- Overall success rate was 96% with no major complications. Significant savings in guiding catheters and introducer sheaths were observed.
Conclusions:
- Coronary angioplasty with 4 French (F) catheters is technically feasible and economically advantageous.
- The technique offers a high success rate and a favorable safety profile, reducing procedural costs.
- Further investigation into specific lesion subsets and catheter system compatibility may optimize outcomes.
Abstract:
In 50 consecutive patients subjected to coronary angioplasty immediately following a 4 French (F) diagnostic study, the technical feasibility and economical aspects of angioplasty through 4F catheters of 54 lesions were assessed. The patients were selected, but multiple, eccentric, and long lesions were not a priori excluded. 4F diagnostic catheters (Cordis), and fixed-wire dilatation catheters (Ace, Scimed) were used in all cases. The procedure was successful in 43 lesions (80%) using 4F catheters. For 11 stenoses (20%), a change over to a larger French size was required. Two of these lesions could not be crossed with the balloon despite the larger sized guiding catheter. The final overall success rate was 96%, and there were no major complications. The use of diagnostic 4F catheters for angioplasty in these 50 patients resulted in the saving of 39 guiding catheters and 19 introducer sheaths. For 12 lesions (22%), an additional 4F catheter became necessary since the shape used for the diagnostic study was inadequate for angioplasty. In 7 cases, more than 1 balloon was used, but 5 of these balloon exchanges were independent of the use of 4F catheters. Three exchanges were performed through the 4F catheter (1 for need of a larger balloon to improve on an unsatisfactory angiographic result and 2 for a crimped guide wire tip of the Ace balloon). In the remaining 4, a larger catheter was used; in 2 of them, angioplasty eventually failed (failure to cross lesion) and in the remaining 2, a Monorail system solved the problem, which is incompatible with 4F catheters.(ABSTRACT TRUNCATED AT 250 WORDS)