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New guiding catheter for transrad PTCA
Insights
The Kimny guiding catheter offers high success rates for transradial coronary angioplasty and stenting. This device is effective for routine procedures, including complex cases involving both coronary arteries.
Area of Science:
- Cardiovascular Interventions
- Medical Device Technology
Background:
- Transradial coronary angioplasty is an increasingly common revascularization technique.
- Guiding catheters are essential tools for delivering interventional devices to coronary arteries.
Observation:
- The Kimny guiding catheter was used in 302 patients (405 lesions) for transradial percutaneous transluminal coronary angioplasty (PTCA).
- Initial total engagement rate was 91.3%, improving to 96.0% after modification.
- Stent delivery success rate was 98.4% with a low rate of complications.
Findings:
- The Kimny guiding catheter demonstrated a high engagement rate (96.0% post-modification) and excellent stent delivery success (98.4%).
- The catheter was effective for bilateral coronary engagement in 89% of cases via the radial artery.
- No major cardiac or entry site complications were observed, with only one minor dissection reported.
Implications:
- The Kimny guiding catheter is a valuable tool for routine percutaneous transluminal coronary angioplasty and stenting.
- Its efficacy in transradial interventions supports its use in complex coronary procedures.
- The device's safety profile suggests it is well-suited for widespread clinical adoption.
Abstract:
A new guiding catheter for PTCA is described. In our department, 302 patients (405 lesions) underwent transradial coronary angioplasty using the 6 Fr Kimny guiding catheter since January 1996. The total engagement rate using the Kimny guiding catheter was 91.3% (370/405). The engagement rate after the modified Kimny guiding catheter was introduced in May 1996 increased to 96.0% (243/253). The stent delivery success rate was 98.4%. We had two dislodged stents. PTCA for both left and right coronary arteries in a single procedure with the Kimny guiding catheter was performed via the radial artery in 27 patients. In 24 of these patients (89%) we engaged both coronaries successfully. In the remaining 3 patients we switched to another catheter. Except for 4 patients with non-Q-wave myocardial infarction, no major cardiac complications were encountered. No major entry site-related complications were seen, and no patient required vascular surgery or blood transfusions. In one patient the Kimny guiding catheter tip caused a minor dissection of the LMT, but no ischemic event occurred as a result. In conclusion, the Kimny device is a useful PTCA guiding catheter for routine angioplasty and stenting.