title: Superselective coaxial microballoon-occluded coil embolization for vascular disorders: a preliminary report.
abstract: OBJECTIVE
  To evaluate the safety and effectiveness of superselective coil embolization with coaxial microballoon occlusion (B-coiling) for vascular disorders.
  
  
  METHODS
  Clinical data were retrospectively evaluated for 16 consecutive patients (6 men, 10 women; mean age, 70 y; age range, 57-80 y) with vascular disorders who underwent B-coiling with 0.010-0.014-inch detachable microcoils delivered through a guide-wire lumen of a microballoon catheter. Routine angiographic catheters (4-5 F) were introduced in all cases, including splenic (n = 4) and renal (n = 3) artery aneurysms, pulmonary and renal arteriovenous malformations (AVMs; n = 3 and n = 1, respectively), gastroesophageal varices (GEVs; n = 3), gastroduodenal artery stump pseudoaneurysm (n = 1), and superficial temporal artery aneurysm (n = 1).
  
  
  RESULTS
  Complete primary occlusion was achieved in 87.5% of cases (n = 14) without complications. Additional percutaneous transhepatic sclerotherapy by N-butyl cyanoacrylate (NBCA)/iodized oil mixtures without balloon occlusion resulted in successful occlusion of one GEV. Additional balloon-occluded NBCA injection was successfully performed in one renal AVM.
  
  
  CONCLUSIONS
  Superselective coaxial microballoon embolization with detachable microcoils is a safe and useful treatment. Selective B-coiling induces tight packing under flow control in the treatment of vascular disorders.
authors: Department of Radiology, Toyonaka Municipal Hospital, Shibahara 4-14-1, Toyonaka, Osaka 560-8565, Japan. Electronic address: yasumoto@solid.ocn.ne.jp.
authors: Taku
authors: T
authors: Yasumoto
authors: Department of Radiology, Toyonaka Municipal Hospital, Shibahara 4-14-1, Toyonaka, Osaka 560-8565, Japan.
authors: Hideaki
authors: H
authors: Yakushiji
authors: Department of Radiology, Toyonaka Municipal Hospital, Shibahara 4-14-1, Toyonaka, Osaka 560-8565, Japan.
authors: Ryosuke
authors: R
authors: Ohira
authors: Department of Radiology, Toyonaka Municipal Hospital, Shibahara 4-14-1, Toyonaka, Osaka 560-8565, Japan.
authors: Sayaka
authors: S
authors: Ochi
authors: Department of Radiology, Toyonaka Municipal Hospital, Shibahara 4-14-1, Toyonaka, Osaka 560-8565, Japan.
authors: Saki
authors: S
authors: Nakata
authors: Department of Radiology, Toyonaka Municipal Hospital, Shibahara 4-14-1, Toyonaka, Osaka 560-8565, Japan.
authors: Norio
authors: N
authors: Hirabuki
mesh_terms: D000368:Aged; D004621:Embolization, Therapeutic / Q000009:adverse effects / Q000295:instrumentation*; D004659:Enbucrilate / Q000008:administration & dosage; D004867:Equipment Design; D005260:Female; D006801:Humans; D007459:Iodized Oil / Q000008:administration & dosage; D008297:Male; D008875:Middle Aged; D008904:Miniaturization; D012189:Retrospective Studies; D012597:Sclerosing Solutions / Q000008:administration & dosage; D015911:Sclerotherapy; D016896:Treatment Outcome; D062666:Vascular Access Devices; D014652:Vascular Diseases / Q000175:diagnosis / Q000628:therapy*
chemical_list: D012597:Sclerosing Solutions; D007459:Iodized Oil; D004659:Enbucrilate