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目的：比较小剂量肝素与低分子右旋糖酐对老年性高粘滞血症的疗效。方法：将９２例老年性高粘滞血症患者随机分为两组，甲组５２例，每日静滴肝素５０ｍｇ；乙组４０例，每日静滴低分子右旋糖酐２５０ｍＬ；疗程均为两周。结果：治疗结束时，甲组显效率、有效率分别为３６．５％、４０．７％；乙组显效率、有效率分别为２７．５％、２５％。结论：两种药物的疗效差异有显著性（Ｐ＜０．０５），小剂量肝素静滴治疗老年性高粘滞血症疗效优于低分子右旋糖酐。
Objective: To compare the efficacy of low-dose heparin with low-molecular dextran on senile hyperviscosity. Methods: A total of 92 elderly patients with hyperviscosity were randomly divided into two groups: group A (n = 52) with daily intravenous drip of heparin (n = 50), group B (n = 40) with daily intravenous drip of low molecular dextran . Results: At the end of treatment, the effective rate and effective rate of group A were 36.5% and 40.7% respectively. The effective rate and effective rate of group B were 27.5% and 25% respectively. Conclusion: The difference between the two drugs is significant (P <0.05). Low-dose heparin infusion is superior to low-molecular dextran in the treatment of senile hyperviscosity.