Figure 2.

Heart function recovery was better conserved in hearts suspended in air compared to hearts immersed in KH+O₂ during normothermic ischemic period. A. Recordings of ventricular-developed pressure (LVDP) and velocity of contraction and relaxation (dP/dt) in hearts immersed in KH+O₂ during ischemic conservation and reperfused for 40 minutes (Rep-40), for 60 minutes (Rep-60), and for 90 minutes (Rep-90). B. Examples of heart function recordings showing the left ventricular-developed pressure (LVDP) and the maximum velocity of contraction and relaxation (dP/dt) of hearts suspended in air during the ischemic conservation period and reperfused for 40 minutes (Rep-40), 60 minutes (Rep-60), and 90 minutes (Rep-90). Note that in all groups, values before ischemia were similar, whereas after the ischemic period heart function recovery was greatly conserved in hearts suspended in air compared to the groups immersed in KH during ischemia.