Propagation of ectopic activity along the border zone during microreperfusion protocol
Experimental video file illustrating the appearance of ectopic sources which propagated alongside the border zone with an apparent speed of 0.1-0.4 cm/s. They then spread into the surrounding control network, where they were propagated at a faster velocity of 6-9 cm/s. Cardiomyocyte layer loaded with Fluo-4, confocal recordings. Details in Arutunyan et al Am.J.Physiol. 2002. [Adobe PDF]