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目的：探讨迁延性植物状态患者血清中多巴胺的变化及其临床意义。方法：用高效液相色谱测定长期昏迷的病人，并与正常对照组对比。结果：迁延性植物状态患者的血清中多巴胺显著降低。结论：多巴胺的减少可能是形成迁延性植物状态的重要因素之一。
Objective: To investigate the changes of serum dopamine in patients with persistent vegetative state and its clinical significance. Methods: Long-term coma patients were measured by HPLC, and compared with the normal control group. Results: Dopamine was significantly reduced in patients with persistent vegetative state. Conclusions: The reduction of dopamine may be one of the important factors in the formation of persistent plant status.