The recovery time duration of normal blood pressure and urine volume was sooner in group a than that in group b . [ conclusions ] the lactate - directed medical therapy associated with a marked decrease in mortality for patients undergoing heart surgery makes the time duration of recovery sooner in lactate - directed group 结论使用血乳酸水平可以更好地监测患者组织水平的灌注是否充分，结合使用中心静脉压对于补液及心功能的调整比单独使用中心静脉压更有优势，能很好地改善患者的预后。
