目的 探讨左卡尼汀联合生脉注射液对维持性血液透析低血压心脏功能的影响。方法 选取我院2016年1月—2020年2月收治的维持性血液透析反复低血压患者120例,随机分为对照组(n=40)、左卡尼汀组(n=40)和联合组(n=40)。3组均采用常规治疗,左卡尼汀组加用左卡尼汀,联合组加用左卡尼汀联合生脉注射液。分析3组治疗前后低血压发生率、血压指标、心肌酶谱、心肌梗死定量指标及超声心动图指标变化。收集3组治疗过程中发生不良反应情况。结果 联合组低血压发生率低于对照组和左卡尼汀组(P＜0.05);联合组治疗后透析中最低收缩压、透析中平均动脉压、透析后收缩压、透析后平均动脉压均高于对照组和左卡尼汀组(P＜0.05);联合组治疗后心肌谱酶、心肌梗死定量指标均低于对照组及左卡尼汀组(P＜0.05);3组治疗前后肺动脉收缩压、右室壁舒张末期厚度、右室舒张末期内径、左室舒张末期内径、右室收缩末期面积、右室舒张末期面积差异无统计学意义(P＞0.05);联合组治疗后左室射血分数高于对照组和左卡尼汀组(P＜0.05);3组不良反应发生率差异无统计学意义(P＞0.05)。结论 左卡尼汀联合生脉注射液可降低维持性血液透析患者低血压的发生率,改善患者心功能,具有较好的疗效及安全性。

Objective To investigate the effect of L-carnitine combined with Shengmai Injection on cardiac function in patients with maintenance hemodialysis hypotension. Methods A total of 120 maintenance hemodialysis patients with recurrent hypotension in our hospital from January 2016 to February 2020 were randomly divided into control group (n=40), L-carnitine group (n=40) and combination group (n=40). The three groups were treated with conventional treatment, L-carnitine group was added with L-carnitine, and the combination group was given levocarnitine combined with Shengmai Injection. The incidence of hypotension, blood pressure index, myocardial enzyme spectrum, quantitative index of myocardial infarction and echocardiography index were obtained and analyzed before and after treatment. The adverse reactions in the three groups were collected. Results The incidence of hypotension in combination group was lower than that in control group and L-carnitine group (P<0.05). After treatment, the minimum systolic blood pressure, mean arterial pressure during dialysis, systolic blood pressure after dialysis and mean arterial pressure after dialysis in the combination group were higher than those in the control group and L-carnitine group (P<0.05). After treatment, the myocardial spectrum enzyme and myocardial infarction quantitative indexes in the combination group were lower than those in the control group and L-carnitine group (P<0.05). There were no significant differences in pulmonary artery systolic pressure, diastolic right ventricular wall thickness, diastolic right ventricular width, diastolic left ventricular width, systolic right ventricular area and diastolic right ventricular area among the three groups before and after treatment (P>0.05). The left ventricular ejection fraction of the combination group was higher than that of the control group and L-carnitine group (P<0.05). There was no significant difference in the incidence of adverse reactions among the three groups (P>0.05). Conclusions L-carnitine combined with Shengmai Injection could reduce the incidence of hypotension in maintenance hemodialysis patients, improve the cardiac function, with good efficacy and safety.

目的 研究妊娠早期低血压对子宫动脉血流的影响。方法 前瞻性连续收集2020年9月—2021年3月在广州市妇女儿童医疗中心行产前检查的早孕期正常单胎妊娠孕妇,分为两组:低血压组(43人)及正常血压组(73人),分别监测两组孕妇的双侧子宫动脉血流搏动指数 (pulse index,PI)及收缩期峰值 (peak systolic velocity,PSV),并比较两组间PI及PSV是否有统计学差异。结果 双侧子宫动脉血流PI与平均动脉压呈线性正相关关系(P＜0.05)。低血压组双侧子宫动脉PI低于正常血压组,差异有统计学意义(P＜0.05),低血压组右侧子宫动脉PSV低于正常血压组,差异有统计学意义(P＜0.05),左侧子宫动脉PSV两组间无差异(P＞0.05)。结论 低血压孕妇子宫动脉血流动力学参数异常降低,临床应重视妊娠期低血压孕妇子宫动脉血流动力学异常者的围产期管理。

Objective To study the relationship between early pregnancy hypotension and uterine artery blood flow. Methods We prospectively and consecutively selected pregnant women with normal singleton pregnancy in early pregnancy for this study from September 2020 to March 2021 in Guangzhou Women and Children's Medical Center. According to the blood pressure, they were divided into hypotension group (n=43) and normal blood pressure group (n=73). We monitored the pulse index (PI) and peak systolic velocity (PSV) of bilateral uterine artery blood flow, then compared the PI and PSV between the two groups. Results There was a positive linear correlation between PI and mean arterial pressure (P＜0.05). The PI of bilateral uterine arteries in hypotension group was lower than that in normal blood pressure group (P＜0.05). PSV of right uterine artery in hypotension group was lower than that in normal blood pressure group (P＜0.05). PSV of left uterine artery in hypotension group was not different from that in normal blood pressure group (P＞0.05). Conclusion Uterine artery hemodynamic parameters of hypotensive pregnant women decreased abnormally, so attention should be paid to the perinatal management of pregnant women with abnormal uterine artery hemodynamics.

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.

目的 探讨社区老年高血压病人直立性低血压的药物影响。方法 通过对辖区内897例社区老年高血压病人开展体检,将年轻老年和老老年高血压两组分为直立性低血压组和非直立性低血压组两组。分析降压药物对社区老年高血压病人直立性低血压的影响。结果 OH组的降压药物使用率稍高于非OH组的降压药物使用率,经统计分析P>0.05。OH组联合两种以上及联合三种以上降压药物使用率略高于非OH的药物使用率, P>0.05。利尿剂OH发生率稍高于其他组的OH发生率,P>0.05。结论 社区老年高血压OH的发病可能与目前常用的5大类降压药物无关。