Document Detail


Changes in Left Main Bifurcation Geometry After a Single-Stent Crossover Technique: An Intravascular Ultrasound Study Using Direct Imaging of Both the Left Anterior Descending and the Left Circumflex Coronary Arteries Before and After Intervention.
MedLine Citation:
PMID:  21712525     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background-We assessed geometric changes responsible for acute lumen loss at the left circumflex coronary artery (LCX) ostium after crossover stenting from the left anterior descending coronary artery (LAD) to the left main artery. METHODS AND RESULTS: <0.001). The percent change in MLA within the LCX ostium correlated with changes in EEM eccentricity (r=-0.414, P=0.049) and percent change in EEM area at the MLA site (r=0.626, P=0.001). A smaller distal carina angle between the LAD and the LCX before stenting was associated with a greater percent reduction in lumen (r=0.472, P=0.023) and EEM (r=0.402, P=0.048) after stenting. In 18 lesions with >10% reduction of MLA within the LCX ostium despite the lack of direct relationship between ΔL and ΔP at the MLA site, ΔP closely correlated with the ratio of ΔV to ΔL (r=-0.953, P<0.001), suggesting that an increase in plaque at the LCX ostium contributed to the MLA loss relative to the decrease in EEM area. Conclusions-Lumen loss at the LCX ostium frequently occurred after crossover stenting from the distal LM to the LAD. The main mechanism was carina shift that was associated with a narrow angle between the LAD and LCX.
Authors:
Soo-Jin Kang; Gary S Mintz; Won-Jang Kim; Jong-Young Lee; Jun-Hyok Oh; Duk-Woo Park; Seung-Whan Lee; Young-Hak Kim; Cheol Whan Lee; Seong-Wook Park; Seung-Jung Park
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-28
Journal Detail:
Title:  Circulation. Cardiovascular interventions     Volume:  -     ISSN:  1941-7632     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101499602     Medline TA:  Circ Cardiovasc Interv     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Cardiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea, and Cardiovascular Research Foundation, New York, NY.
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