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Revista Colombiana de Cardiología

Print version ISSN 0120-5633

Abstract

SENIOR, Juan M et al. Transplant of stem cells derived from bone marrow and granulocytic growth factor in acute and chronic ischemic myocardiopathy. Rev. Col. Cardiol. [online]. 2007, vol.14, n.6, pp.341-352. ISSN 0120-5633.

Introduction: recent studies have shown the safety and efficacy of the stem cells derived from bone marrow (BMC) implant with concomitant administration of stimulating factor of granulocyte colonies in patients with acute myocardial infarction with ST segment elevation and in chronic ischemic cardiopathy. An open prospective «before and after» design was made to evaluate the safety and efficacy of cell therapy associated to growth factor administration. The first experience with this kind of therapy is reported. Methodology; this is a 6 months follow-up report of patients with acute and chronic ischemic cardiopathy to whom transplant of stem cells derived from bone marrow mobilized with granulocyte colonies growth stimulating factor via coronary arteries or epicardium was realized. Two groups of patients were included: 1. Ten patients with anterior wall infarct and 2. Five patients with chronic ischemic cardiopathy, all with extensive necrosis demonstrated by absence of myocardial viability through nuclear medicine and ejection fraction of less than 40%. Results: significant improvement of ejection fraction from 29.44 ± 3.36 to 37.6 ± 5.3 with p<0.001 and decrease of ventricular systolic and diastolic volume without statistical significance (p = 0.31 and 0.4 respectively) were demonstrated. Exercise capacity evidenced by increment in the six minutes test, exercise time and the MET number achieved, increased in a significant way. There were significant changes in the perfusion defect from the second follow-up month and no complications directly related to the stem cells derived from bone marrow transplant or the use of stimulating granulocyte colony factor were presented. Conclusions: this is the first experience of stem cells derived from bone marrow transplant associated to the administration of stimulating granulocyte growth colony factor in which recovery of left ventricular function was demonstrated, as well as improvement in exercise capacity and in the perfusion defect, without adverse effects or complications related to these therapies.

Keywords : myocardial infarction; stem cells; intracoronary; angiogenesis; bone marrow.

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