Linked Life Data

19507142

Source:http://linkedlifedata.com/resource/pubmed/id/19507142

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-10-7
pubmed:abstractText
During normal breathing, the kidneys move up and down due to the diaphragm motion and the renal artery subsequently experiences bending at or close to its point of fixation to the aorta. The impact of this kidney motion on implanted stent fatigue performance was not well understood in the past. Previous study from the authors on an 18-mm long single cobalt-chromium stent showed that the change in bending angle was minor during simulated respiration-induced kidney motion on cadavers. Finite Element Analysis revealed excellent fatigue resistance of the studied cobalt-chromium stent under simulated respiratory motion for the single stent configuration. In this article, the study was extended further to the overlapped stent configuration where a physician deploys two stents overlapping at the stent ends to fully cover a long lesion. Fluoroscopic images showed that the change in bending angle during simulated respiration-induced kidney motion on cadavers was more significant when two cobalt-chromium stents were overlapped. Calculated data of the Goodman analysis for the overlapped stents migrated toward the Goodman diagram failure line, indicating lower fatigue resistance during respiration when compared to a single stent.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1552-4981
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
91
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
508-16
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Respiration-induced kidney motion on cobalt-chromium stent fatigue resistance.
pubmed:affiliation
Abbott Laboratories, Abbott Vascular, Santa Clara, California 95054, USA. hao-ming.hsiao@av.abbott.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't