目的 观察盐酸米多君 （Midodrine hydrochloride）在血液透析中发生低血压患者的临床使用疗效。方法 选择血液透析过程中出现低血压的患者23例，每于血液透析前30～45分钟给予盐酸米多君5mg，观察患者在血液透析中的血压变化及临床症状，对升压效果不明显者在透析中1.0～1.5小时加用2.5mg。结果 显效120例次（占52.0%）；有效69例次（占30.0%）；进步19例次（占8.3%）； 无效22例次 （占 9.7%），总有效率达90.3%。无明显不良反应，对比结果有统计学意义。结论 盐酸米多君治疗血液透析中低血压有效和安全。

Objective To observe the clinical curative effect of Midodrine hydrochloride in treating hypotension in hemodialysis. Methods Choose 23 patients of hypotension in hemodialysis, and give them Midodnine hydrochloride 5mg 30 to 45 minutes before hemodialysis, then observe the change of their blood pressure and their clinical symptom in hemodialysis. We can add 2.5mg when hemodialysis has begun 1 to 1.5 hour with the patients whose blood pressure haven't ascended evidently. Results Obvious effect 120 person-times (52.0%), effective 69 person-times(30.0%)progressive 19 person-times(8.3%),non effective 22 person-times(9.7%),so the total rate of effectivity is 90.3%. There is no obvious untoward reaction, and the contradistinctive result has statistical significance. Conclusion Using Midodrine hydrochloride to treat hypotension in hemodialysis is effective and safe.