| Endoluminal thermal occlusion of the ureter with the electromagnetic field-focusing device. | |
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MedLine Citation:
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PMID: 1627878 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The authors attempted ureteral occlusion by means of heat application in nine ureters (24 sites) of New Zealand White rabbits with the electromagnetic field-focusing (EFF) device. The EFF device generates heat at the tip of a grounded probe by focusing eddy currents that have been induced within the tissues by an external radio-frequency field. The power settings were varied from 30 to 150 W. Heat was applied at multiple sites in each ureter. Immediate functional occlusion was seen in all nine ureters. Long-term complete occlusion was seen in six ureters at power settings ranging from 40 to 150 W, while long-term partial occlusion was seen in two ureters at 30-50 W. All sites at 30 W resulted in partial occlusions. Perforation of the ureter resulted in urinoma formation in one ureter at a site that was treated with 150 W. The EFF device can be used to endoluminally occlude the ureter by causing a fibrotic reaction to thermal injury. The effective power range for this application appears to be 40-100 W. |
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Authors:
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P S Chopra; K Kandarpa; W R Welch; J Chakrabarti |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of vascular and interventional radiology : JVIR Volume: 3 ISSN: 1051-0443 ISO Abbreviation: J Vasc Interv Radiol Publication Date: 1992 May |
Date Detail:
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Created Date: 1992-08-14 Completed Date: 1992-08-14 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 9203369 Medline TA: J Vasc Interv Radiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 305-12 Citation Subset: IM |
Affiliation:
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Department of Radiology, Brigham and Women's Hospital/Harvard Medical School, Boston, MA 02115. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Constriction Electrocoagulation / instrumentation*, methods Electromagnetic Fields* Rabbits Ureter / pathology, surgery* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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