| A new soluble gelatin sponge for transcatheter hepatic arterial embolization. | |
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MedLine Citation:
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PMID: 20431885 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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To prepare a soluble gelatin sponge (GS) and to explore the GS particles (GSPs) that inhibit development of collateral pathways when transcatheter hepatic arterial embolization is performed. The approval of the Institutional Committee on Research Animal Care of our institution was obtained. By means of 50 and 100 kDa of regenerative medicine-gelatin (RM-G), RM-G sponges were prepared by freeze-drying and heating to temperatures of 110-150°C for cross-linkage. The soluble times of RM-GSPs were measured in vitro. Eight swine for transcatheter hepatic arterial embolization were assigned into two groups: six received 135°C/50RM-GSPs, 125°C/100RM-GSPs, and 138°C/50RM-GSPs, with soluble time of 48 h or more in vitro; two swine received Gelpart GSPs (G-GSPs) with insoluble time of 14 days as a control. Transarterial chemoembolization was performed on two branches of the hepatic artery per swine. RM-GSPs heated at temperatures of 110-138°C were soluble. Mean soluble times of the RM-GSPs increased with higher temperature. Hepatic branches embolized with G-GSP remained occluded after 6 days, and development of collateral pathways was observed after 3 days. Hepatic branches embolized with 135°C/50RM-GSP and 125°C/100RM-GSP remained occluded for 4 h, and recanalization was observed after 1 day. Hepatic branches embolized with 138°C/50RM-GS remained occluded for 1 day, and recanalization was observed after 2 days with no development of collateral pathways. In RM-GSs with various soluble times that were prepared by modulating the heating temperature, 138°C/50RM-GSP was the soluble GSP with the longest occlusion time without inducing development of collateral pathways. |
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Authors:
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Isao Takasaka; Nobuyuki Kawai; Morio Sato; Shinya Sahara; Hiroyuki Minamiguchi; Motoki Nakai; Akira Ikoma; Kouhei Nakata; Tetsuo Sonomura |
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Publication Detail:
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Type: Journal Article Date: 2010-04-30 |
Journal Detail:
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Title: Cardiovascular and interventional radiology Volume: 33 ISSN: 1432-086X ISO Abbreviation: Cardiovasc Intervent Radiol Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-10 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8003538 Medline TA: Cardiovasc Intervent Radiol Country: United States |
Other Details:
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Languages: eng Pagination: 1198-204 Citation Subset: IM |
Affiliation:
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Department of Radiology, Wakayama Medical University, 811-1 Kimiidera, Wakayamashi, Wakayama 641-8510, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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