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 探讨甲状旁腺全切除加前臂自身移植术(tPTX+AT)对并发继发性甲状旁腺功能亢进(SHPT)的尿毒症患者心脏功能的影响。方法 将50例接受tPTX+AT治疗的尿毒症并发SHPT患者作为手术组,并配对选择50例同期未接受手术治疗的尿毒症并发SHPT患者作为非手术组。对所有患者进行12个月的随访,分析两组随访过程中心室结构、心脏功能及甲状旁腺功能相关指标的变化情况。结果 在随访过程中,手术组LVD、IVSS、LVPWT、NT-proBNP、iPTH、Ga及P均呈现降低趋势,LVEF呈现升高趋势(P<0.05);非手术组LVEF、iPTH及Ga呈现升高趋势,LVD、IVSS、LVPWT、NT-proBNP及P呈现降低趋势(P<0.05)。在随访6个月及随访12个月时,手术组LVD、IVSS、LVPWT、NT-proBNP、iPTH、Ga及P低于非手术组,LVEF高于非手术组(P<0.05)。结论 tPTX+AT可有效的改善尿毒症并发SHPT患者的心室结构及心脏功能,并可在一定程度上改善患者的甲状旁腺功能。

目的 目前对于生物反馈发挥治疗作用的机理还未完全研究清楚,该实验借助近似熵(ApEn)这一新型的非线性研究方法,研究在生物反馈过程中心电的变化,从而希望发现生物反馈对心脏功能的潜在影响。方法 总数30人的健康正常受试者纳入研究,其中20人为生物反馈实验组,10人为正常对照组。该实验采用肌电生物反馈作为反馈方法,同时记录心电的变化。实验所得数据采用非线性动力学参数—近似熵(ApEn)进行研究。结果 实验组的平均心率在最后两个生物反馈阶段高于对照组。随着实验进展,实验组的心率标准差逐渐缩小,而心率和心电ApEn明显增高。结论 该实验发现生物反馈能够影响心电生理系统,使得心脏系统变得更加健康,展现出更强的抗应激能力,从而揭示了生物反馈潜在的治疗机理。

Objective The mechanism about biofeedback is not complete clear. Our aim was to study changes of cardiac function (electrophysiology) during biofeedback with the help of approximate entropy (ApEn), and a potential new mechanism about neurofeedback may be detected. Methods A total of 30 healthy volunteers participated in this study which consisted of the neurofeedback group(n=20) and the control group (n=10). We applied electromyogram neurofeedback as the feedback method, and simultaneously recorded electroencephalogram(EEG) and electrocardiogram(ECG). We applied the nonlinear analysis ApEn assess obtained data. Results In the biofeedback group the average of heart rate was higher than that of control group in the last two sessions. As the biofeedback experiment sessions were progressed, the standard deviation of heart rate gradually reduced and the ApEn of ECG increased with statistic significance in the biofeedback group. Conclusion We found that biofeedback can influence cardiac electrophysiological system and make cardiac systems progress healthily and achieve greater ability of anti-stress.