Electrocardiogram (ECG) analysis following cryoinjury revealed a prolonged duration of the ventricular action potential in scar-containing hearts. An average ECG of uninjured animals (A) and hearts at 7 dpci (B) demonstrates a similar pattern of waves except the prolonged time between the Q and T peaks. (C) Average duration of the QTc-intervals at different time points after cryoinjury (n = 6 fish, *P < 0.01).
Chablais et al. BMC Developmental Biology 2011 11:21 doi:10.1186/1471-213X-11-21