Document Detail

Stenting for ST-segment elevation myocardial infarction is associated with less neointimal hyperplasia in the pooled IVUS analysis from HORIZONS-AMI and the TAXUS IV and V and ATLAS workhorse, long lesion, and direct stent studies.
MedLine Citation:
PMID:  24911615     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To investigate the difference in neointimal hyperplasia (NIH) between ST-segment elevation myocardial infarction (STEMI), stable angina pectoris (SAP), and unstable angina pectoris (UAP).
PATIENTS AND METHODS: From formal core laboratory intravascular ultrasound substudies, we compared NIH after paclitaxel-eluting stents (PES) or bare metal stents (BMS) in STEMI lesions from HORIZONS-AMI trial with SAP and UAP lesions from TAXUS IV, V, and ATLAS studies.
RESULTS: At follow-up, %NIH at the minimum lumen area (MLA) site was less in STEMI (n=212) than in UAP (n=233) and SAP (n=440) lesions treated with PES (19.6 vs. 26.2 vs. 25.0%, P=0.002; all intravascular ultrasound data shown as least-square means in abstract) and less in STEMI (n=66) than in UAP (n=72) and SAP (n=143) lesions treated with BMS (34.0 vs. 26.7 vs. 45.5%, P=0.0003). As a result, MLA at follow-up was larger in STEMI than in UAP and SAP lesions treated with PES (5.9 vs. 5.2 vs. 5.0 mm, P<0.0001) or treated with BMS (5.1 vs. 4.3 vs. 4.0 mm, P=0.002). Net volume obstruction ([NIH/stent volume]×100) at follow-up was significantly less in STEMI than in UAP and SAP lesions treated with PES (7.8 vs. 13.4 vs. 13.4%, P<0.0001) or BMS (20.6 vs. 28.5 vs. 32.1%, P<0.0001). Multivariate linear regression analysis showed that STEMI was correlated independently and inversely with net volume obstruction compared with SAP (regression coefficient -6.99, P<0.0001) or UAP (regression coefficient -6.29, P<0.0001).
CONCLUSION: Implantation of PES or BMS in STEMI compared with UAP and SAP was associated with less NIH.
Nobuaki Kobayashi; Akiko Maehara; Dominic Allocco; Bernard Witzenbichler; Stephen G Ellis; Mark A Turco; John A Ormiston; Giulio Guagliumi; Songtao Jiang; Thomas C McAndrew; Keith D Dawkins; Gregg W Stone; Gary S Mintz; Neil J Weissman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-6
Journal Detail:
Title:  Coronary artery disease     Volume:  -     ISSN:  1473-5830     ISO Abbreviation:  Coron. Artery Dis.     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-6-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9011445     Medline TA:  Coron Artery Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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