PMID- 16820557 OWN - NLM STAT- MEDLINE DCOM- 20060818 LR - 20161124 IS - 1524-4539 (Electronic) IS - 0009-7322 (Linking) VI - 114 IP - 1 Suppl DP - 2006 Jul 4 TI - Recovery of regional but not global contractile function by the direct intramyocardial autologous bone marrow transplantation: results from a randomized controlled clinical trial. PG - I101-7 AB - BACKGROUND: Recent trials have shown that intracoronary infusion of bone marrow cells (BMCs) improves functional recovery after acute myocardial infarction. However, whether this treatment is effective in heart failure as a consequence of remodeling after organized infarcts remains unclear. In this randomized trial, we assessed the hypothesis that direct intramyocardial injection of autologous mononuclear bone marrow cells during coronary artery bypass graft (CABG) could improve global and regional left ventricular ejection fraction (LVEF) at 4-month follow-up. METHODS AND RESULTS: Twenty patients (age 64.8+/-8.7; 17 male, 3 female) with a postinfarction nonviable scar, as assessed by thallium (Tl) scintigraphy and cardiac magnetic resonance imaging (MRI), scheduled for elective CABG, were included. They were randomized to a control group (n =10, CABG only) or a BMC group (CABG and injection of 60.10(6)+/-31.10(6) BMC). Primary end points were global LVEF change and wall thickening changes in the infarct area from baseline to 4-month follow-up, as measured by MRI. Changes in metabolic activity were measured by Tl scintigraphy and expressed as a score with a range from 0 to 4, corresponding to percent of maximal myocardial Tl uptake (4 indicates <50%, nonviable scar; 3, 50% to 60%; 2, 60% to 70%; 1, 70% to 80%; 0>80%). Global LVEF at baseline was 39.5+/-5.5% in controls and 42.9+/-10.3% in the BMC group (P=0.38). At 4 months, LVEF had increased to 43.1+/-10.9% in the control group and to 48.9+/-9.5% in the BMC group (P=0.23). Systolic thickening had improved from -0.6+/-1.3 mm at baseline to 1.8+/-2.6 mm at 4 months in the cell-implanted scars, whereas nontreated scars remained largely akinetic (-0.5+/-2.0 mm at baseline compared with 0.4+/-1.7 mm at 4 months, P=0.007 control versus BMC-treated group at 4 months). Defect score decreased from 4 to 3.3+/-0.9 in the BMC group and to 3.7+/-0.4 in the control group (P=0.18). CONCLUSIONS: At 4 months, there was no significant difference in global LVEF between both groups, but a recovery of regional contractile function in previously nonviable scar was observed in the BMC group. FAU - Hendrikx, Marc AU - Hendrikx M AD - Department of Cardiothoracic Surgery, Virga Jesse hospital, Stadsomvaart 11, B-3500 Hasselt, Belgium. marc.hendrikx@virgajesse.be FAU - Hensen, Karen AU - Hensen K FAU - Clijsters, Christel AU - Clijsters C FAU - Jongen, Hanne AU - Jongen H FAU - Koninckx, Remco AU - Koninckx R FAU - Bijnens, Eric AU - Bijnens E FAU - Ingels, Michel AU - Ingels M FAU - Jacobs, Axel AU - Jacobs A FAU - Geukens, Robert AU - Geukens R FAU - Dendale, Paul AU - Dendale P FAU - Vijgen, Johan AU - Vijgen J FAU - Dilling, Dagmara AU - Dilling D FAU - Steels, Paul AU - Steels P FAU - Mees, Urbain AU - Mees U FAU - Rummens, Jean-Luc AU - Rummens JL LA - eng PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PL - United States TA - Circulation JT - Circulation JID - 0147763 RN - 0 (Radiopharmaceuticals) RN - 0 (Thallium Radioisotopes) SB - IM MH - Aged MH - Bone Marrow Transplantation/*methods MH - Cicatrix/diagnostic imaging/pathology/surgery MH - Coronary Artery Bypass MH - Female MH - Flow Cytometry MH - Heart/diagnostic imaging MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - *Myocardial Contraction MH - Myocardial Infarction/diagnostic imaging/pathology/physiopathology/*surgery MH - Radionuclide Imaging MH - Radiopharmaceuticals/pharmacokinetics MH - Stroke Volume MH - Systole MH - Thallium Radioisotopes/pharmacokinetics MH - Transplantation, Autologous EDAT- 2006/07/06 09:00 MHDA- 2006/08/19 09:00 CRDT- 2006/07/06 09:00 PHST- 2006/07/06 09:00 [pubmed] PHST- 2006/08/19 09:00 [medline] PHST- 2006/07/06 09:00 [entrez] AID - 114/1_suppl/I-101 [pii] AID - 10.1161/CIRCULATIONAHA.105.000505 [doi] PST - ppublish SO - Circulation. 2006 Jul 4;114(1 Suppl):I101-7. doi: 10.1161/CIRCULATIONAHA.105.000505.