(A–F) Measurements in infarcted hearts. Haemodynamic recovery of the cardiac function (A and B), LVEDP during the ischaemic period (C) and coronary flow recovery (D). Metabolic recovery (E and F). *P < 0.05. ECCP: esmolol crystalloid cardioplegia; EBCP: esmolol blood cardioplegia; Cala: Calafiore blood cardioplegia; dLVP/dtmax and dLVP/dtmin: velocity of contractility and relaxation over time; INF: with myocardial infarction; LVpdP: left ventricular peak developed pressure.