The changes in hemodynamic parameters -LSB- mean arterial pressure ( MAP ) , central venous pressure ( CVP ) , HR , cardiac index ( CI ) , stroke volume index ( SVI ) , systemic vascular resistance ( SVRI ) , global end diastolic volume index ( GEDVI ) -RSB- , biochemistry metabolic of tissue -LSB- central venous oxygen saturation ( ScvO ) , lactic acid ( Lac ) -RSB- , and cardiac markers -LSB- troponin I ( cTnI ) -RSB- before and @ , @ , @ , @ hours after the treatment were recorded .