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Off-Pump Versus On-Pump Coronary Revascularization: Meta-Analysis of Mid- and Long-Term Outcomes.
MedLine Citation:
PMID:  24968764     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Early outcomes for off-pump coronary artery bypass grafting (OPCAB) have been extensively compared with on-pump coronary revascularization (ONCAB); however, the long-term effects of OPCAB continue to be debated. This study aims to compare the mid-term (>1year; ≤5 years) and long-term (>5 years) survival and major adverse cardiovascular and cerebrovascular events of OPCAB versus ONCAB.
METHODS: A systematic search identified 32 studies meeting our inclusion criteria. These were analyzed using random effects modeling, with subgroup evaluation according to study type. Primary outcomes were mid- and long-term survival over a follow-up period greater than 1 year. Secondary outcomes were mid- and long-term events including repeat revascularization, myocardial infarction, angina, heart failure, and cerebrovascular accidents.
RESULTS: Off-pump coronary artery bypass grafting confers similar overall mid-term survival when compared with ONCAB (hazard ratio, 1.06; 95% confidence interval, 0.95 to 1.19; p = 0.31). On-pump coronary artery bypass grafting was associated with a significant trend towards a long-term survival advantage (hazard ratio, 1.06; 95% confidence interval, 1.00 to 1.13; p = 0.05); however, this was no longer present when subgroup analysis of only randomized controlled trials, registry-based studies, and propensity-matched studies was performed. There was an increase in angina recurrence among two studies after OPCAB, but no difference was seen in 11 other studies reporting data as odds ratio. No significant differences were observed in other secondary outcomes.
CONCLUSIONS: This analysis demonstrates comparable mid-term mortality and mid- to long-term morbidity between OPCAB and ONCAB. On-pump coronary artery bypass grafting may be associated with improved long-term survival when all study types are analyzed; however, analysis of only randomized controlled trials and propensity-matched studies demonstrates comparable long-term mortality between OPCAB and ONCAB.
Authors:
Umar A R Chaudhry; Leanne Harling; Christopher Rao; Hutan Ashrafian; Michael Ibrahim; John Kokotsakis; Roberto Casula; Thanos Athanasiou
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-24
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  -     ISSN:  1552-6259     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-6-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.
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