目的 观察不同血液净化方式对维持性血液透析(MHD)患者透析中低血压(IDH)的干预作用。方法 选择透析中低血压患者30例,随机分为血液透析(HD)组,血液透析滤过(HDF)组,血液灌流联合血液透析(HP+HD)组,各组均为10例。比较三组患者透析中低血压的发生率。分别于首次治疗前、后,治疗24周后测定血清血β₂-微球蛋白(β₂-MG)、N末端B型利钠肽原(NT-proBNP)、血浆白蛋白(ALB)。结果 ①HDF+HD、HP+HD组透析中低血压发生率降低(P<0.05)。②与治疗前相比,首次治疗后HDF能降低血β₂-MG水平(P<0.05);治疗24周后,HP+HD、HDF组均可降低血β₂-MG浓度(P<0.05),且HP+HD组下降更明显(P<0.05)。首次治疗及治疗24周后,HD组均不能降低NT-proBNP水平,而HDF、HP+HD组均能有效降低血NT-proBNP浓度(P<0.05)。首次治疗和治疗24周后3组患者ALB水平的差异均无统计学意义,同期3组患者ALB水平的差异亦不显著(P>0.05)。结论 HDF或HP+HD能有效降低MHD患者IDH的发生率,值得推广。

Objective To explore the efficacy of different blood purification methods on intradialytic hypotension(IDH) in maintenance hemodialysis (MHD) patients. Methods Thirty MHD patients with IDH were randomly divided into three groups: hemodialysis(HD) group(n=10),hemodiafiltration(HDF) group(n=10),hemoperfusion combined with hemodialysis (HP+HD) group(n=10). The changes of blood pressure in therapy and the frequency of intradialytic hypotension were compared.Before and after the first treatment,after 24 weeks of treatment serum blood beta 2-microglobulin(β₂-MG),serum NT-proBNP,albumin(ALB)weremeasured. Results ①Compared with HD group,the frequency of intradialytic hypotension was significantly reduced in HDF and HP+HD group(P<0.05). ② In HFD group serumβ₂-MG decreased after the first dialysis session(P<0.05). After the treatment for 24 weeks, serumβ₂-MG levels decreased in HP+HD and HFD group (P<0.05),especially in HP+HD group(P<0.05). Serum NT-proBNP cannot decreased after first dialysis session and after the treatment for 24 weeks in HD group, however, can decreased in HFD and HP+HD group (P<0.05). There were no changes of ALB levels between three groups after first dialysis session and after the treatment for 24 weeks (P>0.05). Conclusion Hemodiafiltration or hemoperfusion associated with hemodilysis can improve the hemodynamic stability in IDH patients, it can be used as a long term therapy.