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Updated: Aug 29, 2026
Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Initial characterization of Ikari Guide catheter for transradial coronary intervention
Yuji Ikari1, Hiroyoshi Nakajima, Raisuke Iijima
1Division of Cardiology, Mitsui Memorial Hospital, 1, Kanda-Izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan. ikari-tky@umin.ac.jp
Insights
The Ikari guide catheter offers strong back-up force for transradial intervention (TRI). Initial results show a 97% success rate, comparable or better outcomes than transfemoral approach (TFI).
Area of Science:
- Cardiovascular Interventions
- Medical Device Technology
Background:
- Transradial intervention (TRI) is an alternative to transfemoral approach (TFI).
- Guide catheter selection is crucial for successful TRI procedures.
- The Ikari catheter is designed to enhance back-up force in TRI.
Purpose of the Study:
- To report initial clinical outcomes of the Ikari guide catheter in transradial coronary interventions.
- To evaluate the efficacy and safety of the Ikari catheter compared to TFI.
Main Methods:
- A single-center retrospective analysis of 102 coronary interventions using the Ikari catheter.
- Comparison with 101 TFI procedures performed during the same period.
- Data collected included procedure success rates, fluoroscopy time, and contrast volume.
Main Results:
- The Ikari catheter achieved a 97% procedural success rate in 102 TRI cases.
- Procedure failures (3%) were attributed to tortuous brachiocephalic arteries.
- Ikari procedures showed comparable or improved fluoroscopy time and contrast volume versus TFI.
Conclusions:
- The Ikari guide catheter demonstrates an acceptable success rate for transradial coronary interventions.
- Appropriate guide catheter selection, such as the Ikari, is key for successful TRI.
- Preliminary data support the use of the Ikari catheter in TRI procedures.
Abstract:
Ikari is a new guide catheter for transradial intervention (TRI) that produces stronger back-up force by utilizing an unfavorable angle between the subclavian and brachiocephalic arteries. We report the initial results of the Ikari guide catheter based on the experience of a single center. Six operators performed a total of 102 coronary interventions for 91 patients using the Ikari guide catheter, while 101 interventions were performed with the transfemoral approach (TFI) during the same period. A left Ikari catheter was used in 63 procedures, and a right Ikari catheter was used in 39. The success rate for the procedure was 97% with a 6 French Ikari catheter. All failures were due to tortuous brachiocephalic arteries. For the Ikari procedure, the average fluorescence time was 14.5 9.5 minutes and the dye volume used was 153 53 ml; these results were equal to or better than those of TFI during the same period (20.1 12.2 minutes and 184 61 ml, respectively). These preliminary data suggest that an acceptable success rate can be achieved in TRI using appropriate guides, such as an Ikari catheter.
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