(A–F) Measurements in non-infarcted hearts. Haemodynamic recovery of the cardiac function (A and B), LVEDP during the ischaemic period (C) and coronary flow recovery (D). The metabolic recovery (E and F). *P < 0.05, **P < 0.01. ECCP: esmolol crystalloid cardioplegia; EBCP: esmolol blood cardioplegia; Cala: Calafiore blood cardioplegia; dLVP/dtmax and dLVP/dtmin: velocity of contractility and relaxation over time; LVpdP: Left ventricular peak developed pressure; NONINF: without myocardial infarction.