Document Detail


Intravascular Ultrasound Analysis of Plaque Characteristics and Postpercutaneous Coronary Intervention Catheterization Outcomes According to the Remodeling Pattern in Narrowed Saphenous Vein Grafts.
MedLine Citation:
PMID:  22835407     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We assessed the plaque characteristics and postpercutaneous coronary intervention (PCI) outcome according to the remodeling pattern (positive remodeling [PR], n = 113; and intermediate/negative remodeling [IR/NR], n = 198) in 311 saphenous vein graft lesions using intravascular ultrasound. The remodeling index was the ratio of the lesion site saphenous vein graft area to the mean of the proximal and distal references (PR/remodeling index >1.05, IR 0.95 to 1.05, and NR <0.95). Tissue prolapse was defined as tissue extrusion through the stent strut after PCI, and the tissue prolapse volume was calculated by subtracting the lumen volume from the stent volume. The presence of hypoechoic plaque (59% vs 36%, p = 0.001), plaque rupture (26% vs 16%, p = 0.042), multiple plaque rupture (12% vs 5%, p = 0.020), and an intraluminal mass (59% vs 41%, p = 0.002) were more common in the PR lesions than in the IR/NR lesions. The plaque cavity area was significantly greater in the PR lesions than in the IR/NR lesions (0.83 ± 1.43 mm(2) vs 0.42 ± 1.07 mm(2), p = 0.009). Post-PCI no-reflow (19% vs 9%, p = 0.019) and post-PCI tissue prolapse (53% vs 27%, p <0.001) were observed more frequently, and the tissue prolapse volume was significantly greater after PCI for PR lesions than for IR/NR lesions (0.86 ± 1.30 mm(3) vs 0.34 ± 0.74 mm(3), p <0.001). PR was the independent predictor of post-PCI no-reflow (odds ratio 2.58, 95% confidence interval 1.25 to 5.64, p = 0.040) and post-PCI tissue prolapse (odds ratio 2.45, 95% confidence interval 1.46 to 5.41, p = 0.045). In conclusion, saphenous vein graft lesions with PR have vulnerable plaque and are associated with no-reflow and tissue prolapse after PCI.
Authors:
Young Joon Hong; Myung Ho Jeong; Youngkeun Ahn; Gary S Mintz; Sang Wook Kim; Sung Yun Lee; Seok Yeon Kim; Jeong Gwan Cho; Jong Chun Park; Jung Chaee Kang; Neil J Weissman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-24
Journal Detail:
Title:  The American journal of cardiology     Volume:  -     ISSN:  1879-1913     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Affiliation:
Heart Center of Chonnam National University Hospital, Gwangju, South Korea.
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