Author/Authors :
Tsukahara, Satoshi Department of Radiology - Kariya Toyota General Hospital, Japan , Shimohira, Masashi Department of Radiology - Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan , Nagai, Keiichi Department of Radiology - Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan , Ohta, Kengo Department of Radiology - Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan , Sawada, Yusuke Department of Radiology - Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan , Hashizume, Takuya Department of Radiology - Nagoya Kyoritsu Hospital, Nagoya, Japan , Goto, Taeko 4Department of Radiology, Ichinomiya Municipal Hospital, Ichinomiya, Japan , Shibamoto, Yuta Department of Radiology - Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
Abstract :
Background
A triple-coaxial (triaxial) system, which consists of a small microcatheter, a large microcatheter, and a 4-Fr. catheter, has been reported to allow super-selective catheterization. A 1.6-Fr. microcatheter has recently become available as the small microcatheter for the triaxial system, in addition to 0.014-in. pushable bare platinum coils that may be introduced into the 1.6-Fr. microcatheter.
Purpose
The purpose of the present study was to evaluate the feasibility of 0.014-in. pushable bare platinum coils in embolization through the 1.6-Fr. microcatheter of the triaxial system.
Material and Methods
Between November 2015 and October 2019, 19 embolizations were performed on 18 patients, 9 males and 9 females with a median age of 77 years (range, 41–88 years), using 0.014-in. pushable bare platinum coils through the 1.6-Fr. microcatheter of the triaxial system. The technical success rate, clinical success rate, and complications associated with the procedure were assessed. Technical success was defined as the successful delivery and placement of 0.014-in. pushable bare platinum coils, and clinical success as the immediate postembolic complete cessation of blood flow confirmed by digital subtraction angiography.
Results
Eighty-four 0.014-in. pushable bare platinum coils were delivered and 19 arteries were successfully embolized. The median number of 0.014-in. pushable bare platinum coils was 4 (range, 1–12). The technical success rate was 100% (84/84) and the clinical success rate was also 100% (19/19). There were no complications associated with the procedures.
Conclusion
The use of 0.014-in. pushable bare platinum coils in super-selective embolization through the 1.6-Fr. microcatheter of the triaxial system appears to be feasible and safe.
