Table 3. Changes of AP in the isogeneic group and allogeneic group at the 4^th day after cardiac transplantation.

Parameter	Isogeneic group	Allogeneic group	P valve
APD50 (ms)	16.00±2.687	19.17±1.777	0.3272
APD90 (ms)	59.34±5.183	104.0±9.523	0.0064
APA (mV)	117.0±5.594	123.0±2.824	0.3033
RP (mV)	−76.05±0.8443	−79.89±1.392	0.0781

APD, action potential duration; APA, action potential amplitude; RP, resting potential.