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Virtual Histology Evaluation of Atherosclerosis Regression During Atorvastatin and Ezetimibe Administration.
MedLine Citation:
PMID:  22076422     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background: There is no study focusing on changes in coronary atherosclerosis during dual lipid-lowering therapy with statin and ezetimibe. Methods and Results: Eighty-nine patients with stable angina randomized in a 1:1 ratio to Group A (aggressive therapy: atorvastatin 80mg, ezetimibe 10mg) and Group S (standard therapy) were analyzed. Treatment period was 12 months. Coronary arteries were examined by intravascular ultrasound and virtual histology. We found a decrease in the percent atheroma volume (PAV) (-0.4%) in Group A compared with an increase (+1.4%) in Group S (P=0.014) and this was accompanied by an increased frequency of combined atherosclerosis regression (increased lumen volume+decreased PAV) in group A (40.5%) compared with group S (14.9%) (P=0.007). The target low-density lipoprotein cholesterol level <2mmol/L, presence of at least 4 of 5 atherosclerotic risk factors, and decreased level of vascular cellular adhesive molecule were independent predictors of plaque regression. There were no significant differences in plaque composition between the 2 groups over the study duration. However, during analysis of the 2 groups together, fibrous and fibro-fatty tissues decreased and dense calcification and necrotic core increased during follow-up. Conclusions: Dual lipid-lowering therapy starts atherosclerosis regression, but does not lead to significant changes in plaque composition. The continuous shift in plaque from fibro and fibro-fatty to necrotic with calcification was present in both groups.
Authors:
Tomas Kovarnik; Gary S Mintz; Hana Skalicka; Ales Kral; Jan Horak; Roman Skulec; Jana Uhrova; Pavel Martasek; Richard W Downe; Andreas Wahle; Milan Sonka; Vratislav Mrazek; Michael Aschermann; Ales Linhart
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-10
Journal Detail:
Title:  Circulation journal : official journal of the Japanese Circulation Society     Volume:  -     ISSN:  1347-4820     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137683     Medline TA:  Circ J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
2nd Department of Medicine, Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague.
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