Safety and feasibility of transendocardial autologous bone marrow cell transplantation in patients with advanced heart disease

The American Journal of Cardiology
Shmuel FuchsStephen E Epstein

Abstract

The present report contains the final results of a Phase I study that evaluated the feasibility, safety, and potential efficacy of intramyocardial injection of autologous bone marrow (BM) in "no-option" patients with refractory angina and myocardial ischemia. Twenty-seven patients underwent electromechanic mapping-guided transendomyocardial injections (n = 12, 0.2 ml each) of unfractionated autologous BM cells directed to ischemic, noninfarcted myocardial territory. Patients were injected with 28 +/- 27 x 10(6)/ml nucleated cells containing 2.2 +/- 1.4% CD34+ cells. The autologous BM injection procedure was successful in all patients and was associated with no adverse events. At 3 months, the Canadian Cardiovascular Society angina score (3.2 +/- 0.5 vs 2.0 +/- 0.91, p = 0.001) and treadmill exercise duration (418 +/- 136 vs 489 +/- 142 seconds, p = 0.017) had improved significantly. The stress-induced ischemia score within the injected territories (118 segments) had also improved (2.2 +/- 0.8 vs 1.7 +/- 1.1, p < 0.001). At 1 year, the clinical improvement was sustained, although 5 patients had undergone revascularization procedures. The number of total injected nucleated cells (CD45+), progenitor cells (CD34+), and the magnitud...Continue Reading

Associated Clinical Trials

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