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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References
Okazaki M, Higashihara H, Koganemaru F, Ono H, Fujimitsu R, Yamasaki R, et al. Emergent embolization for control of massive hemorrhage from a splanchnic artery with a new coaxial catheter system. Acta Radiol 1992;33:57–62.
Miyayama S, Matsui O, Taki K, Minami T, Ito C, Shinmura R, et al. Combined use of an occlusion balloon catheter and a microcatheter for embolization of the unselectable right inferior phrenic artery supplying hepatocellular carcinoma. Cardiovasc Intervent Radiol 2004;27:677–681.
Miyayama S, Matsui O, Yamashiro M, Ryu Y, Kaito K, Ozaki K, et al. Ultraselective transcatheter arterial chemoembolization with a 2-F tip microcatheter for small hepatocellular carcinomas: relationship between local tumor recurrence and visualization of portal vein with iodized oil. J Vasc Interv Radiol 2007;18:365–376.
Ha-Kawa SK, Kariya H, Murata T, Tanaka Y. Successful transcatheter embolotherapy with a new platinum microcoil: the Berenstein Liquid coil. Cardiovasc Intervent Radiol 1998;21:297–299.
Osuga K, White RI Jr. Micronester: a new pushable fibered microcoil for embolotherapy. Cardiovasc Intervent Radiol 2003;26:554–556.
Irie T. New embolization microcoil consisting of firm and flexible segments: preliminary clinical experience. Cardiovasc Intervent Radiol 2006;29:986–990.
Tajima T, Yoshimitsu K, Irie H, Nishie A, Hirakawa M, Ishigami K, et al. Microcoil embolization through a downsized coaxial catheter system: an experimental study. Acta Radiol 2009;50:469–473.
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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