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Intracoronary infusion of bone marrow-derived selected CD34+CXCR4+ cells and non-selected mononuclear cells in patients with acute STEMI and reduced left ventricular ejection fraction: results of randomized, multicentre Myocardial Regeneration by Intracoronary Infusion of Selected Population of Stem Cells in Acute Myocardial Infarction (REGENT) Trial

Open access
Tendera, Michał, Wojakowski, Wojciech, Rużyłło, Witold, Chojnowska, Lidia, Kępka, Cezary, Tracz, Wiesława, Musiałek, Piotr, Piwowarska, Wiesława, Nessler, Jadwiga, Buszman, Paweł, Grajek, Stefan, Bręborowicz, Piotr, Majka, Marcin, Ratajczak, Mariusz Z.·2009·European Heart Journal

Abstract

AIMS: Comparison of intracoronary infusion of bone marrow (BM)-derived unselected mononuclear cells (UNSEL) and selected CD34(+)CXCR4(+) cells (SEL) in patients with acute myocardial infarction (AMI) and reduced <40% left ventricular ejection fraction (LVEF). METHODS AND RESULTS: Two hundred patients were randomized to intracoronary infusion of UNSEL (n = 80) or SEL (n = 80) BM cells or to the control (CTRL) group without BM cell treatment. Primary endpoint: change of LVEF and volumes measured by magnetic resonance imaging before and 6 months after the procedure. After 6 months, LVEF increased by 3% (P = 0.01) in patients treated with UNSEL, 3% in patients receiving SEL (P = 0.04) and remained unchanged in CTRL group (P = 0.73). There were no significant differences in absolute changes of LVEF between the groups. Absolute changes of left ventricular end-systolic volume and left ventricular end-diastolic volume were not significantly different in all groups. Significant increase of LVEF was observed only in patients treated with BM cells who had baseline LVEF < median (37%). Baseline LVEF < median and time from the onset of symptoms to primary percutaneous coronary intervention > or = median were predictors of LVEF improvement in patients receiving BM cells. There were no differences in major cardiovascular event (death, re-infarction, stroke, target vessel revascularization) between groups. CONCLUSION: In patients with AMI and impaired LVEF, treatment with BM cells does not lead to a significant improvement of LVEF or volumes. There was however a trend in favour of cell therapy in patients with most severely impaired LVEF and longer delay between the symptoms and revascularization.

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Metadata

Authors
Tendera, M., Wojakowski, W., Rużyłło, W., Chojnowska, L., Kępka, C., Tracz, W., Musiałek, P., Piwowarska, W., Nessler, J., Buszman, P., Grajek, S., Bręborowicz, P., Majka, M., & Ratajczak, M. Z.
Venue
European Heart Journal
Published
2009-02-10
Volume
30
Issue
11
Pages
1313-1321
ISSN
  • 0195-668X (ISSN-L)
  • 1522-9645
OpenAlex
W2098266872
Cited by
473
References
26
FWCI
27.20
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Intracoronary infusion of bone marrow-derived selected CD34+CXCR4+ cells and non-selected mononuclear cells in patients with acute STEMI and reduced left ventricular ejection fraction: results of randomized, multicentre Myocardial Regeneration by Intracoronary Infusion of Selected Population of Stem Cells in Acute Myocardial Infarction (REGENT) Trial. https://app.cochat.ai/papers/10.1093/eurheartj/ehp073
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Tendera, M., Wojakowski, W., Rużyłło, W., Chojnowska, L., Kępka, C., Tracz, W., Musiałek, P., Piwowarska, W., Nessler, J., Buszman, P., Grajek, S., Bręborowicz, P., Majka, M., & Ratajczak, M. Z. (2009). Intracoronary infusion of bone marrow-derived selected CD34+CXCR4+ cells and non-selected mononuclear cells in patients with acute STEMI and reduced left ventricular ejection fraction: results of randomized, multicentre Myocardial Regeneration by Intracoronary Infusion of Selected Population of Stem Cells in Acute Myocardial Infarction (REGENT) Trial. European Heart Journal. https://doi.org/10.1093/eurheartj/ehp073

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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