[Frontiers in Bioscience E2, 111-121, January 1, 2010]
Enhanced external counterpulsation is a regenerative therapy
Coty W. Jewell1, Philip D. Houck1, Linley E. Watson1, David E. Dostal2, Gregory J. Dehmer1
1Department of Medicine (Cardiology Division) University Health Science Center College of Medicine and the Scott and White Clinic, Temple, Texas, 2Cardiovascular Research Institute, Texas A and M University Health Science Center College of Medicine and the Scott and White Clinic, Temple, Texas
TABLE OF CONTENTS
Enhanced external counterpulsation (EECP) is used for the treatment of severe angina and heart failure in patients who are not candidates for revascularization. The clinical benefits of EECP extend well beyond the time period of any hemodynamic effects, but the cause of this prolonged effect is not understood. The prolonged clinical benefits suggest EECP could be a regenerative therapy. This study was performed to determine whether EECP increased circulating hematopoietic progenitor cells (HPCs) or endothelial progenitor cells (EPCs) and thus be a possible regenerative therapy. The proposed mechanism of the increase in regenerative circulating stem cells is the enhanced shear forces induced on the endothelial boundary by the flow reversal produced by the sequential inflation of the pneumatic cuffs during EECP therapy.