Abstract
Purpose
The aim of this study was to evaluate the technical aspects of embolization using microcoils through a microcatheter with a tip of 2F or smaller during abdominal vascular interventions.
Materials and methods
Coil embolization through a microcatheter with a tip of 2F or smaller was attempted in 73 procedures. Two types of microcoil—Liquid Coil (Boston Scientific, Watertown, MA, USA) and Tornado Coil (Cook, Bloomington, IN, USA)—were deployed through four types of thinner microcatheter [2F tip (n = 49) and 1.8F tip (n = 24)]. Coil jams in the microcatheter and coil migration were evaluated.
Results
In total, 286 microcoils were placed (mean ± SD, 3.9 ± 4.3 coils per procedure, range 1–32 coils). In 19 procedures (26.9%), Liquid Coils were used alone. In 44 (60.3%), Tornado Coils were used alone. In 10 (13.7%), Liquid Coils and Tornado Coils were combined. There were no coil jams in the microcatheter in this series. One Tornado Coil (0.3%) delivered into the gastroduodenal artery migrated to the right hepatic artery.
Conclusion
Liquid Coils and Tornado Coils can be placed through a thinner microcatheter without diffi- culty. However, there is a risk of coil migration in large vessels or at the proximal site because the catheter tip is not stabilized.
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Miyayama, S., Yamashiro, M., Hattori, Y. et al. Microcoil embolization during abdominal vascular interventions through microcatheters with a tip of 2 French or less. Jpn J Radiol 29, 286–290 (2011). https://doi.org/10.1007/s11604-010-0540-z
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DOI: https://doi.org/10.1007/s11604-010-0540-z