title: Microcoil embolization during abdominal vascular interventions through microcatheters with a tip of 2 French or less.
abstract: OBJECTIVE
  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.
  
  
  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.
  
  
  CONCLUSIONS
  Liquid Coils and Tornado Coils can be placed through a thinner microcatheter without difficulty. However, there is a risk of coil migration in large vessels or at the proximal site because the catheter tip is not stabilized.
authors: Department of Diagnostic Radiology, Fukuiken Saiseikai Hospital, 7-1 Funabashi, Wadanaka-cho, Fukui 918-8503, Japan. s-miyayama@fukui.saiseikai.or.jp
authors: Shiro
authors: S
authors: Miyayama
authors: Masashi
authors: M
authors: Yamashiro
authors: Yuki
authors: Y
authors: Hattori
authors: Nobuaki
authors: N
authors: Orito
authors: Ken
authors: K
authors: Matsui
authors: Kazunobu
authors: K
authors: Tsuji
authors: Miki
authors: M
authors: Yoshida
authors: Osamu
authors: O
authors: Matsui
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