To achieve the therapeutic goals set out above will be executed a volemic fill up to values of PVC ≤ 5 mmHg or at maximum values of 2 mmHg more the incoming If after proper filling the targets aren't yet achieved, the patient will begin infusion of vasoactive drugs following the practice of department. If after 12 hours of admission the water balance will be > 10-15 ml / kg / h an infusion of furosemide should be initiated in order to bring the budget of the patient to 10-15 ml / kg in 24 hours.