| Ischaemic postconditioning revisited: lack of effects on infarct size following primary percutaneous coronary intervention. | |
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MedLine Citation:
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PMID: 21846677 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Aims To assess the short- and long-term effects of postconditioning (p-cond) on infarct size, extent of myocardial salvage, and left ventricular ejection fraction (LVEF) in a series of patients presenting with evolving ST-elevation myocardial infarction (STEMI). Previous studies have shown that p-cond during primary percutaneous coronary intervention (PCI) confers protection against ischaemia-reperfusion injury and thus might reduce myocardial infarct size. Methods and results Seventy-nine patients undergoing PCI for a first STEMI with TIMI grade flow 0-1 and no collaterals were randomized to p-cond (n= 39) or controls (n= 40). Postconditioning was performed by applying four consecutive cycles of 1 min balloon inflation, each followed by 1 min deflation. Infarct size, myocardial salvage, and LVEF were assessed by cardiac-MRI 1 week and 6 months after MI. Postconditioning was associated with lower myocardial salvage (4.1 ± 7.2 vs. 9.1 ± 5.8% in controls; P= 0.004) and lower myocardial salvage index (18.9 ± 27.4 vs. 30.9 ± 20.5% in controls; P= 0.038). No significant differences in infarct size and LVEF were found between the groups at 1 week and 6 months after MI. Conclusion This randomized study suggests that p-cond during primary PCI does not reduce infarct size or improve myocardial function recovery at both short- and long-term follow-up and might have a potential harmful effect. |
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Authors:
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Xavier Freixa; Neus Bellera; José T Ortiz-Pérez; Marcelo Jiménez; Carles Paré; Xavier Bosch; Teresa M De Caralt; Amadeo Betriu; Mónica Masotti |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-16 |
Journal Detail:
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Title: European heart journal Volume: - ISSN: 1522-9645 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8006263 Medline TA: Eur Heart J Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Interventional Cardiology Section, Cardiology Department, Thorax Institute, Hospital Clinic, University of Barcelona, Villarroel 170, Barcelona 08036, Catalonia, Spain. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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