Related Experiment Video
Updated: May 4, 2026
Myocardial Infarction by Percutaneous Embolization Coil Deployment in a Swine Model
Published on: November 4, 2021
Triaxial coil embolization using Guglielmi detachable coils with the voltage-dependent coil-detaching technique
Masashi Shimohira1, Takuya Hashizume2, Kengo Ohta2
1Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan mshimohira@gmail.com.
Background:
A triple co-axial (triaxial) system, consisting of a 1.9-Fr non-tapered microcatheter with one marker, a 2.7-Fr microcatheter, and a 4-Fr catheter, has been recently developed, and can be used in coil embolizations using 0.010-inch Guglielmi detachable coils (GDCs) with a voltage-dependent coil-detaching technique.
Purpose:
To describe this new technique and evaluate its technical feasibility and clinical efficacy.
Material And Methods:
Twenty patients underwent this procedure. Diseases were gastrointestinal bleeding in five patients, traumatic bleeding in three patients, and other diseases in 12 patients. The technical success rate, clinical success rate, and complications of this procedure were evaluated. Technical success was defined as the successful delivery and detachment of a GDC, and clinical success was defined as the immediate postembolic complete cessation of blood flow confirmed by digital subtraction angiography.
Results:
A total of 140 GDCs were used and 20 arteries were embolized. The technical success rate was 94% (131/140) and clinical success rate was 95% (19/20). No major complications were reported.
Conclusion:
The triaxial system in coil embolization using a GDC by monitoring the voltage for coil-detaching appeared to be safe and effective.
