Effect of Hypoxia-Reoxygenation on Endothelial Function in Porcine Cardiac Microveins

We conclude that (1) H-R impairs EDHF-mediated relaxation in the coronary microveins with more severe injury during prolonged H-R and (2) ST does not provide protection to the EDHF-mediated relaxation impaired by H-R at either 37°C or 4°C.