Technetium Tc 99m PyrophosphateVentricular Dysfunction, RightInferior Wall Myocardial InfarctionMyocardial InfarctionVentricular Function, RightShock, CardiogenicHeart VentriclesElectrocardiographyShockHemodynamicsProspective StudiesPrognosisInfarctionCerebral InfarctionCoronary AngiographyEchocardiography, DopplerTime FactorsAngioplasty, Balloon, CoronaryThrombolytic TherapyHuman RightsTreatment OutcomeSplenic InfarctionAnterior Wall Myocardial InfarctionRisk FactorsVentricular RemodelingMyocardial ReperfusionBrain Stem InfarctionsMyocardiumStreptokinaseCreatine KinaseVentricular Function, LeftMagnetic Resonance ImagingEchocardiography