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Preoperative Embolization of Metastatic Spinal Tumors Sanami KAWADA 1 , Tsukasa NISHIURA 1 , Tomoko MARUO 1 , Kazuhiro TAKAYAMA 1 , Kotaro OGIHARA 1 , Masaki GOTOH 1 , Kazuyuki TSUNO 1 1Department of Neurosurgery,National Hospital Organization,Iwakuni Medical Center Keyword: spinal tumor , metastasis , preoperative embolization , polyvinyl alcohol particles pp.699-705
Published Date 2004/7/1
DOI https://doi.org/10.11477/mf.1436100452
  • Abstract
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 The authors reviewed their clinical experience with preoperative embolization of metastatic spinal tumors.

 Between October 2000 and September 2003,20 patients (13 men and 7 women; average age 68.3 years,range 44-82 years) underwent 24 spinal operations for 22 spinal metastatic tumors. Nineteen spinal operations (79%) were planned preoperative embolization with polyvinyl alcohol particles. In 3 cases,there was no tumor stain. Fifty percent of the C4-T2 lesions and 76% of the T3-L3 lesions were embolized preoperatively.

 The level of lesions determined which embolization procedure should be used. With C7-T2 or sacral lesions,feeding arteries were superselectively catheterized,then particles were injected via a microcatheter. With T3-L3 lesions,selective catheterization of the corresponding segmental arteries was performed. Particles were injected via 4 or 5Fr catheters. No complications were encountered during embolization.

 Embolizing from the origin of the segmental arteries is effective for reducing intraoperative blood loss because feeding vessels in the anterior part of the spinal body are able to be embolized. Preoperative embolization is not a very complicated procedure and careful catheterization can avoid complications. Based on tumor histology,size of the spinal body,depth of the operative field and operative approach,preoperative embolization can be performed with positive results.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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