Document Detail


The impact of triple anti-platelet therapy for endothelialization and inflammatory response at overlapping bioabsorbable polymer coated drug-eluting stents in a porcine coronary model.
MedLine Citation:
PMID:  23347613     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: This study was conducted to evaluate the endothelialization and the inflammatory responses depending on the administration duration of triple anti-platelet therapy at overlapping bioabsorbable polymer coated biolimus-eluting stents (BESs) in a porcine coronary model. METHODS: We successfully deployed 36 overlapping BESs for the left anterior descending coronary and left circumflex artery or right coronary artery in 18 non-injured pigs. Total pigs were divided into 3 groups (12 overlapping stents of 6 pigs in each group) as follows: group I received aspirin 100mg and clopidogrel 75mg daily for 8weeks, group II received aspirin 100mg and clopidogrel 75mg daily for 8weeks and cilostazol 200mg daily for initial 4weeks, and group III received aspirin 100mg, clopidogrel 75mg, and cilostazol 200mg daily for 8weeks. Follow-up coronary angiograms and histomorphometric and histopahtologic analyses at overlapping and non-overlapping segments were performed respectively. RESULTS: Inflammation score was similar between overlapping and non-overlapping segments in all pigs (1.2±0.33 vs. 1.1±0.17, p=0.117). The neointima area (NA) and percent area stenosis (%AS) at overlapping segments were not significantly different among the 3 groups. However, at non-overlapping segments, NA and %AS in group III were significantly smaller than those in group I (2.3±0.50mm(2) vs. 1.8±0.43mm(2), p=0.037; 48.9±12.85% vs. 37.7±9.08%, p=0.031). CONCLUSIONS: Our study shows that BES appears to be reliable on the inflammatory response at overlapping segments as well as non-overlapping segments. Long-term administration of cilostazol is more effective in reducing neointimal formation at non-overlapping segments of BESs in a porcine coronary model.
Authors:
Keun-Ho Park; Myung Ho Jeong; Jong Min Kim; Dae Sung Park; Jung Ha Kim; Kyung Seob Lim; Ki Hong Lee; Doo Sun Sim; Hyun Ju Yoon; Nam Sik Yoon; Kye Hun Kim; Hyung Wook Park; Young Joon Hong; Ju Han Kim; Youngkeun Ahn; Jeong Gwan Cho; Jong Chun Park; Jung Chaee Kang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-21
Journal Detail:
Title:  International journal of cardiology     Volume:  -     ISSN:  1874-1754     ISO Abbreviation:  Int. J. Cardiol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
The Heart Center of Chonnam National University Hospital, South Korea; The Heart Research Center of Designated by Korea Ministry of Health and Welfare, South Korea.
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