PMID- 24130088 OWN - NLM STAT- MEDLINE DCOM- 20140828 LR - 20211021 IS - 1569-9285 (Electronic) IS - 1569-9293 (Print) IS - 1569-9285 (Linking) VI - 18 IP - 1 DP - 2014 Jan TI - Long-term follow-up after autologous skeletal myoblast transplantation in ischaemic heart disease. PG - 61-6 LID - 10.1093/icvts/ivt434 [doi] AB - OBJECTIVES: Short-term follow-up after autologous skeletal myoblasts (ASM) transplantation (Tx) (Myoblast Autologous Grafting in Ischaemic Cardiomyopathy (MAGIC) Phase II Study) for the treatment of ischaemic cardiomyopathy revealed improved left ventricular (LV) remodelling. Our study reports the longest long-term worldwide follow-up of a single-centre cohort, focusing on the safety and efficacy of ASM-Tx. METHODS: The multicentre MAGIC Phase II Study involved 120 patients and was conducted between 2004 and 2006. Out of the 120 patients involved in the entire study, the cohort treated at our institution contained 7 patients only. These 7 patients received ASM-Tx (injection volume: 400 million cells, n = 2 low dosage; 800 million cells, n = 2 high dosage) or placebo (n = 3) injections, in addition to coronary artery bypass grafting (CABG). After closure of the MAGIC registry, we conducted a long-term follow-up for our 7-patient cohort. The mean follow-up was 72.0 +/- 5.3 months. The follow-up was complete for echo data, implanted cardioverter defibrillator (ICD) report, clinical investigation and New York Heart Association (NYHA) class. RESULTS: At final follow-up, all the patients were alive, and 5 were in NYHA class 1 or 2. There were 6 hospitalizations for congestive heart failure during the follow-up (1 patient from each group). One patient (placebo group) was treated twice for ventricular fibrillation by the ICD. The LV ejection fraction remained stable in all the three groups (31.1 +/- 3.9% preoperative vs 29.4 +/- 4.4% at final follow-up). The LV volumes were reduced in the high-dosage group, remained unchanged in the low-dosage group and deteriorated in the placebo group. CONCLUSIONS: Our long-term data confirm the findings of the MAGIC study. The LV function did not improve, but the long-term LV volumes in the high-dosage group were reduced. During the follow-up, there were also no additional arrhythmogenic incidences. Our data could imply that CABG in combination with ASM-Tx is safe and has beneficial therapeutic effects in the long-term. However, due to the small patient number, the clinical impact is limited. FAU - Brickwedel, Jens AU - Brickwedel J AD - Department of Cardiovascular Surgery, University Heart Center Hamburg, Hamburg, Germany. FAU - Gulbins, Helmut AU - Gulbins H FAU - Reichenspurner, Hermann AU - Reichenspurner H LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial DEP - 20131014 PL - England TA - Interact Cardiovasc Thorac Surg JT - Interactive cardiovascular and thoracic surgery JID - 101158399 SB - IM MH - Aged MH - Coronary Artery Bypass MH - Defibrillators, Implantable MH - Double-Blind Method MH - Electric Countershock/instrumentation MH - Germany MH - Heart Failure/etiology/physiopathology/therapy MH - Humans MH - Male MH - Middle Aged MH - Myoblasts, Skeletal/*transplantation MH - Myocardial Ischemia/complications/pathology/physiopathology/*surgery MH - Myocardium/*pathology MH - Patient Readmission MH - Prospective Studies MH - Recovery of Function MH - *Regeneration MH - Registries MH - *Stem Cell Transplantation/adverse effects MH - Stroke Volume MH - Time Factors MH - Transplantation, Autologous MH - Treatment Outcome MH - Ventricular Fibrillation/etiology/physiopathology/therapy MH - Ventricular Function, Left PMC - PMC3867044 OTO - NOTNLM OT - Cardiac cell therapy OT - Chronic ischaemic heart disease OT - Long-term follow-up EDAT- 2013/10/17 06:00 MHDA- 2014/08/29 06:00 PMCR- 2015/01/01 CRDT- 2013/10/17 06:00 PHST- 2013/10/17 06:00 [entrez] PHST- 2013/10/17 06:00 [pubmed] PHST- 2014/08/29 06:00 [medline] PHST- 2015/01/01 00:00 [pmc-release] AID - ivt434 [pii] AID - 10.1093/icvts/ivt434 [doi] PST - ppublish SO - Interact Cardiovasc Thorac Surg. 2014 Jan;18(1):61-6. doi: 10.1093/icvts/ivt434. Epub 2013 Oct 14.