Shengmai Yin formula promotes ventricular remodeling in chronic heart failure rats by inhibiting excessive autophagy via activating AKT/mTOR pathway

Background:Shengmai Yin(SMY)formula,a traditional Chinese medicine,shows a definite therapeutic effect on chronic heart failure(CHF)in clinical practice,but the molecular mechanism remains largely unknown.The PI3K/Akt/mTOR pathway is a classic pathway of autophagy and plays a pivotal role in the occurrence and development of CHF.Here,we aimed to investigate whether SMY formula treat CHF rats by inhibiting excessive autophagy.Methods:Echocardiography was conducted to evaluate cardiac function.Transmission electron microscopy was used to observe the arrangement of myocardial cells.Enzyme linked immunosorbent assay analysis was performed to quantitative detecting the content of N-terminal pro-B-type natriuretic peptide,stromelysin-2,TNF-α in rat serum.Western blotting was used to detect the expression of AKT,p-AKT,mTOR,p-mTOR,light chain 3(LC3),and p62.In vitro,myocardial cells were treated with hypoxia reoxygenation and then intervened with SMY.Cell counting kit-8 method was used to measure the cell viability.The immunofluorescence expression of LC3 protein were also examined.Results:In vivo,SMY intervention assisted in the ventricular remodeling,reduced the levels of N-terminal pro-B-type natriuretic peptide,stromelysin-2,TNF-αin serum,and recovered myocardial cell structure in CHF rats.Treatment with SMY significantly promoted the ratio of p-AKT/AKT,p-mTOR/mTOR,and down-regulated the expression level of p62 and the ratio of LC3-Ⅱ/LC3-Ⅰ.In vitro,when the concentration of SMY containing serum reached 40% in the medium,the activity of myocardial cells reached the highest at 135.14%.SMY inhibited the expression of LC3 in hypoxic-reoxygenation embryonic ventricular myocytes cells.When the hypoxic reoxygenation cells treated with p-mTOR inhibitor,rapamycin,or p-AKT inhibitor,API-1,SMY could also down-regulated the LC3 expression level.Conclusions:SMY formula functions in restoring cardiac function and promoting myocardial ultrastructural recovery by reducing autophagy activity through up-regulating the ratio of p-AKT/AKT,p-mTOR/mTOR,and down-regulating the expression level of p62 and the ratio of LC3-Ⅱ/LC3-Ⅰ in CHF rats.

Electrophysiological changes of autonomic cells in left ventricular outflow tract in guinea pigs with iron deficiency anemia complicated with chronic heart failure

Objective: To investigate the electrophysiological changes of autonomic cells in left ventricular outflow tract in guinea pigs with iron deficiency anemia complicated with chronic heart failure.Methods: Guinea pigs model of iron deficiency anemia complicated with chronic heart failure in 10 guinea pigs of the experimental group was made by feeding a low iron diet,pure water and subcutaneous injection of isoproterenol. The control group consisting of 11 guinea pigs was given normal food, normal water and injected with normal saline. The left ventricular outflow tract model specimen was also prepared. The standard microelectrode technique was used to observe electrophysiological changes of autonomic cells in the outflow tract of left ventricular heart failure complicated with iron deficiency anemia in guinea pig model. The indicators of observation were maximal diastolic potential, action potential amplitude, 0 phase maximal depolarization velocity, 4 phase automatic depolarization velocity, repolarization 50% and 90%, and spontaneous discharge frequency.Results: Compared with the control group, 4 phase automatic depolarization velocity,spontaneous discharge frequency and 0 phase maximal depolarization velocity decreased significantly(P < 0.01) and action potential amplitude reduced(P < 0.01) in model group. Moreover, repolarization 50% and 90% increased(P < 0.01).Conclusions: There are electrophysiological abnormalities of the left ventricular outflow tract in guinea pigs with iron deficiency anemia complicated with heart failure.

Heart failure and left ventricular dysfunction in older patients with chronic kidney disease: the China Hypertension Survey (2012‒2015)

Background Heart failure(HF)is a leading cause of hospitalization and mortality for older chronic kidney disease(CKD)patients.However,the epidemiological data is scarce.We aimed to determine the prevalence of left ventricular(LV)dysfunction and HF,and to explore the risk factors for HF among those patients.Methods This is a cross-sectional analysis of the China Hypertension Survey conducted between October 2012 and December 2015.A total of 5,808 participants aged≥65 years were included in the analysis.Self-reported history of HF and any other cardiovascular diseases was acquired.2-D and Doppler echocardiography were used to assess LV dysfunction.CKD was defined as either estimated glomerular filtration rate(eGFR)<60 mL/min per 1.73 m2 or urinary albumin to creatinine ratio(ACR)≥30 mg/g.Results Among CKD patients aged≥65 years,the weighted prevalence of HF,heart failure with preserved ejection fraction(HFpEF),heart failure with mid-range ejection fraction(HFmrEF),and heart failure with reduced ejection fraction(HFrEF)was 4.8%,2.5%,0.8%,and 1.7%,respectively.The weighted prevalence of HF was 5.0%in patients with eGFR<60 mL/min per 1.73 m2,and was 5.9%in patients with ACR≥30 mg/g.The prevalence of LV systolic dysfunction was 3.1%,and while it was 8.9%for moderate/severe diastolic dysfunction.Multivariate analysis showed that smoking was significantly associated with the risk of HF.Furthermore,age,smoking,and residents in rural areas were significantly associated with a risk of LV diastolic dysfunction.Conclusions The prevalence of HF and LV dysfunction was high in older patients with CKD,suggesting that particular strategies will be required.

The effect of Rhodiolae treating chronic myocardial infarction with heart failure on left ventricular remodeling and serum inflammatory factors

Objective:To explore the effect of rhodiolae treating chronic myocardial infarction with heart failure on left ventricular remodeling and serum inflammatory factors.Methods:A total of 100 cases of chronic myocardial infarction with heart failure were selected and randomly divided into treatment group and control group with 50 cases in each group, the control group was treated with strong heart, dehydration, nutrition myocardium, infection prevention and western comprehensive treatment, the treatment group was given rhodiola treatment based on the western medicine treatment, compared the changes of left ventricular remodeling indexes and serum inflammatory factors of two group patients before treatment (T0), 1 months of treatment (T1), 3 months of treatment (T2).Results: (1) There was statistical significance difference at different time points LVEF, LVEDD, LVESD, LVSTD, LVPWTD. LVEF, LVSTD, LVPWTD: T2 > T1 > T0, LVEDD, LVESD: T2 < T1 < T0;In treatment group LVEF, LVSTD and LVPWTD increased, and the decline rate of LVEDD and LVESD was higher than that of control group;(2) There was statistically significant difference in different time points of IL-6, hs-CRP, and NT-proBNP, serum IL-6, hsCRP and NT-proBNP levels: T2 < T1 < T0;The serum IL-6, hs-CRP and NT-proBNP levels of treatment group decreased more than control group.Conclusion: Rhodiolae is helpful to improve the left ventricular remodeling and serum inflammatory factors in patients with chronic myocardial infarction and heart failure.

Effect of trimetazidine combined with bisoprolol on the cardiac function, ventricular remodeling and neuroendocrine factors in patients with chronic heart failure

Objective:To study the effect of trimetazidine combined with bisoprolol on the cardiac function, ventricular remodeling and neuroendocrine factors in patients with chronic heart failure.Methods: A total of 52 patients with chronic heart failure who were treated in our hospital between January 2012 and November 2015 were collected and divided into the control group (n=26) who received bisoprolol therapy and the observation group (n=26) who received trimetazidine combined with bisoprolol therapy according to the double-blind randomized control method, and both groups were treated for 3 months. Before treatment and after 3 months of treatment, cardiac color Doppler diasonograph was used to determine the levels of cardiac function parameters and ventricular remodeling parameters, and RIA method was used to determine the levels if peripheral blood neuroendocrine factors.Results: Before treatment, the differences in cardiac function, ventricular remodeling and neuroendocrine factor levels were not statistically significant between two groups of patients. After 3 months of treatment, cardiac function parameters LVEDd and LVESD levels of observation group were lower than those of control group while LVEF level was higher than that of control group, and ventricular remodeling parameters LVPWT, IVSS, PWD, PWS and LVMI levels were lower than those of control group;peripheral blood neuroendocrine factors NE, ALD, AngⅡ, ANP and ET contents of observation group were lower than those of control group.Conclusion:Trimetazidine combined with bisoprolol can optimize the cardiac function, suppress the ventricular remodeling process and regulate the neuroendocrine factor secretion in patients with chronic heart failure, and it contributes to the patients' overall optimization.

A very high frequency index of heart rate variability for evaluation of left ventricular systolic function and prognosis in chronic heart failure patients using five-minute electrocardiogram

Objective A novel index based on fi-equency-domain analysis of heart rate variability （HRV） was tested on patients with reduced left ventricular systolic function. This index, namely VHFI, was defined as the very high frequency （VHF） component of the power spectrum normalized to represent its relative value in proportion to the total power minus the very low frequency component. Methods Patients （n = 130） were divided into a study group, consisting 66 patients with decreased left ventricular systolic function, and a control group, consisting 64 patients with normal heart structure and function and without severe coronary artery stenosis （〈 50%）. Results VHFI in the study group was significantly higher than that in the control group （19.17 ± 13.35 vs 11.37 ± 10.77, P 〈 0.001）. Cardiac events occurred in 18 patients during follow-up （33.34 i 3.26 months）. Defining the positive test as VHFI =15 and negative test as VHFI 〈15, achieved a sensitivity of 57.58% and a specificity of78.13% for predicting decreased left ventricular systolic function, and achieved a sensitivity of 66.67% and a specificity of 64.29% for predicting cardiac events. Univariate Cox regression analysis showed that positive VHFI test was an independent variable in predictive cardiac events. Conclusions The results suggest that VHFI is a useful tool for quick evaluation of left ventricular systolic function and prediction of prognosis

Correlation of peripheral blood CD14dimCD16+ cell content with ventricular remodeling and inflammatory response in patients with chronic heart failure

Objective: To investigate the correlation of peripheral blood CD14dimCD16+ cell content with ventricular remodeling and inflammatory response in patients with chronic heart failure (CHF). Methods: Patients who were diagnosed with chronic heart failure in Sichuan Second Hospital of TCM between August 2014 and March 2017 were selected as the CHF group of the research, and healthy subjects who received physical examination in Sichuan Second Hospital of TCM during the same period were selected as the control group of the research. The peripheral blood was collected to determine the content of CD14dimCD16+ cells, and serum was collected to detect the ventricular remodeling and inflammatory response indicators. Results: Peripheral blood CD14dimCD16+ cell content as well as serum PICP, PIIICP, Sema4D, MMP9, MMP14, Gal-3, sST2, TNF-α and sVCAM-1 contents of CHF group were significantly higher than those of control group;serum PICP, PIIICP, Sema4D, MMP9, MMP14, Gal-3, sST2, TNF-α and sVCAM-1 contents of CHF patients with high CD14dimCD16+ content were significantly higher than those of CHF patients with low CD14dimCD16+ content. Conclusions: Abnormally elevated CD14dimCD16+ cell content in peripheral blood of patients with chronic heart failure can promote the ventricular remodeling and inflammatory response in the course of disease.

Repeated measurement of growth-differentiation factor-15in Chinese Han patients with post-myocardial infarction chronic heart failure

Background Growth-differentiation factor-15(GDF-15)is a promising prognostic biomarker in patients with chronic heart failure (CHF).Comparatively little is known about the value of repeated measurement of GDF-15with CI-IF in Chinese Han population.This study sought to identify the clinical value of repeated measurement of GDF-15in Chinese Han patients with post-myocardial infarction CHF. Methods In total,232consecutive Chinese Hart patients with post-myocardial infarction CHF were enrolled prospectively from January 2014to June 2016.The plasma concentration of GDF-15was determined on admission and over 12months.Patients were followed up for all-cause death and a composite outcome of major adverse cardiac events (MACE)included all-cause death,myocardial infarction and first heart failure (HF)re-hospitalization.Association with other clinical variables and adverse outcomes of repeated measurement of GDF-15 was explored.Results The median baseline GDF-15level was 2025ng/L.Baseline GDF-15was moderately associated with baseline N-terminal pro-B type nalriuretic peptide (NT-proBNP)(coefficient 0.561,P <0.001).During a median follow-up of 20months,there were 53deaths and 100MACE.GDF-I5remained an independent predictor of all-cause death (adjusted hazard ratio 1.826per 1Ln U,95%CI: 1.037-8.360;P =0.037)and MACE (adjusted hazard ratio 2.243per I Ln U,95%CI:1.181-1.775;P <0.001)adjusted for established risk factors.Repeated measurement of GDF-15was performed in 173survivals over 12months.Increase of GDF-15over 12months was associ- ated with dilatation of left ventricle and acted as an independent predictor of subsequent all-canse death (adjusted HR =3.164,95%CI: 1.245~.041;P =0.015).In the joint model,GDF-15was also shown to be a risk factor for all-cause death (HR =2.749,95%CI: 1.667-3.831;P <0.001)and MACE (FIR =2.434,95%CI:1.425-3.443;P <0.001).Conclusions Repeated measurements of GDF-15 have promising prognostic value of the risk of all-cause death in Chinese Han patients with CI-IF post-myocardial infarction.GDF-15may influence the post-myocardial infarction CI-IF through the path physiological pathway of myocardial remodeling.

I-123 metaiodobenzylguanidine imaging for predicting ventricular arrhythmia in heart failure patients

Compared to antiarrhythmic drugs, implantable cardioverter defibrillator （ICD） leads to a more significant im- provement in preventing ventricular arrhythmia in heart failure patients. However, an important question has been raised that how to select appropriate patients for ICD therapy. 1-123 metaiodobenzylguanidine （MIBG） planar and SPECT imaging have shown great potentials to predict ventricular arrhythmia in heart failure patients by as- sessing the abnormalities of the sympathetic nervous system. Clinical trials demonstrated that several parameters measured from 1-123 MIBG planar and SPECT imaging, such as heart-to-mediastinum ratio, washout rate, defect score, and innervation/perfusion mismatch, predicted ventricular arrhythmias in heart failure patients. This paper introduces the current practice of ICD therapy and reviews the technical background of 1-123 MIBG planar and SPECT imaging and their clinical data in predicting ventricular arrhythmia.

Correlation of serum MR-ProANP and NT-ProBNP content with pump function and ventricular remodeling in patients with left heart failure

Objective:To study the correlation of serum MR-ProANP and NT-ProBNP content with pump function and ventricular remodeling in patients with left heart failure.Methods:A total of 104 patients with chronic heart failure treated in our hospital between May 2013 and May 2016 were selected as the heart failure group of the research and 95 healthy volunteers receiving physical examination in our hospital over the same period were selected as the control group of the research. Serum was collected to detect the content of MR-ProANP, NT-ProBNP as well as ventricular remodeling-related molecules, and cardiac color Doppler ultrasonography was conducted to determine the heart pump function- and myocardial remodeling-related parameters.Results:Serum MR-ProANP, NT-ProBNP, MMP2, MMP9, MMP10, PICP and PIIINP content as well as ultrasound parameters IVSd, PWT, LVMI, MWS levels of heart failure group were significantly higher than those of control group, ultrasound parameters LAEF, LAPEF and LAAEF levels were significantly lower than those of control group;serum MR-ProANP and NT-ProBNP content were positively correlated with ultrasound parameters IVSd, PWT, LVMI, MWS as well as serum MMP2, MMP9, MMP10, PICP and PIIINP content, negatively correlated with ultrasound parameters LAEF, LAPEF and LAAEF, and the correlation coefficients of MR-ProANP with these indexes were all higher than those of NT-ProBNP.Conclusion:Serum MR-ProANP and NT-ProBNP content in patients with left heart failure are closely related to the pump function and ventricular remodeling, and MR-ProANP is more valuable for evaluating pump function decrease and ventricular remodeling increase.

A Case Report of Isolated Left Ventricular Non-Compaction Presenting with Congestive Heart Failure and Intramural Thrombus

Isolated left ventricular non-compaction is recently described as a rare form of cardiomyopathy that is associated with a heart failure, life threatening cardiac arrhythmia and thromboembolic complications. The diagnosis is based on echocardiography demonstration of spongy myocardium. Here we report a case of 74 years old female patient diagnosed as an isolated left ventricular non-compaction with congestive heart failure, intramural thrombus and hypertension. There is no specific treatment for LVNC;therapeutic measures are directed towards the patient’s symptom (heart failure, arrhythmia and thrombotic events) and consideration of an implantable cardioverter defibrillator and cardiac transplantation.

Serum Galectin-3 and sST2 contents in patients with chronic heart failure and their correlation with disease severity

Objective:To study the serum Galectin-3 and sST2 contents in patients with chronic heart failure and their correlation with disease severity.Methods: Patients who were diagnosed with chronic heart failure in Guangrao County People's Hospital between March 2015 and October 2017 were selected as the heart failure group of the research, and the healthy subjects who received physical examination in Guangrao County People's Hospital during the same period were selected as the control group of the research. Serum was collected to detect the levels of Galectin-3, sST2 and ventricular remodeling indexes, and the echocardiography was performed to measure LVEDD, LVEF and LVMI.Results:Serum Galectin-3 and sST2 contents of heart failure group were significantly higher than those of control group, serum Galectin-3 and sST2 contents of patients with cardiac function grade Ⅲ and Ⅳ were significantly higher than those of patients with cardiac function grade Ⅱ, and serum Galectin-3 and sST2 contents of patients with cardiac function grade IV were significantly higher those of patients with cardiac function grade Ⅲ;LVEDD and LVMI levels as well as serum FGF23, MMP9, PICP and PIIICP contents of heart failure group were significantly higher than those of control group and positively correlated with serum Galectin-3 and sST2 contents whereas LVEF level as well as serum TIMP1 and TIMP4 contents was significantly lower than those of control group and negatively correlated with serum Galectin-3 and sST2 contents.Conclusion:The abnormal increase of serum Galectin-3 and sST2 in patients with chronic heart failure is valuable for evaluating the cardiac hypofunction and ventricular remodeling.

加味苓桂术甘汤对阳虚水停证慢性心力衰竭患者TGF-β1、TNF-α、NT-proBNP及心室重构的影响

目的探究加味苓桂术甘汤对阳虚水停证慢性心力衰竭患者TGF-β1、TNF-α、NT-proBNP及心室重构的影响。方法将2017年12月至2020年11月六安市中医院收治的98例阳虚水停证慢性心力衰竭患者纳入本研究,随机分为两组,各49例。对照组行西医常规治疗,观察组在此基础上行加味苓桂术甘汤口服治疗,治疗6个月后检测心功能,血清肿瘤坏死因子(tumor necrosis factor,TNF)-α、转化生长因子(transforming growth factor,TGF)-β1、同型半胱氨酸(homocysteine,Hcy)、氨基末端脑钠素原(amminoterminal brain sodium minogen,NT-proBNP)水平并比较临床疗效。结果两组患者治疗后各项指标均较治疗前明显改善(P<0.05)。其中观察组患者治疗后血清TNF-α、TGF-β1、Hcy、NT-proBNP、左室舒张末期内径、左室收缩末期内径和中医证候总积分低于对照组,左室射血分数、6 min步行距离和临床疗效高于对照组(P<0.05)。结论加味苓桂术甘汤治疗阳虚水停证慢性心力衰竭可减轻患者炎症反应,预防心室重构,提高临床疗效。

破格救心汤加减对心力衰竭合并室性心律失常患者生物标志物和近期不良心血管事件的影响

目的评价破格救心汤加减对心力衰竭合并室性心律失常患者生物标志物和近期不良心血管事件的影响。方法将88例心力衰竭合并室性心律失常患者随机分为对照组与观察组各44例。对照组进行抗心衰治疗,并口服美托洛尔缓释片和盐酸胺碘酮胶囊。观察组在对照组治疗的基础上口服破格救心汤加减治疗。比较治疗前后左室射血分数(LVEF)、每搏心输出量(SV)、左心室收缩末期内径(LVESD)、正常窦性心搏间期标准差(SDNN)、校正TP-Te间期(TP-Tec)每5分钟窦性心搏间期平均值的标准差(SDANN)、校正QT间期(QTc)和正常相邻R-R间期差值>50ms的百分比(Pnn50%);检测N末端B型利钠肽原(NT-proBNP)、生长分化因子15(GDF-15)可溶性肿瘤生成抑制因子-2(sST-2)和半乳糖凝集素-3(GAL-3)水平;记录近期不良心血管事件;进行治疗前后阳气亏虚血瘀证评分;比较心功能疗效和室性心律失常疗效。结果治疗后,观察组心功能疗效和室性心律失常疗效的总有效率均高于对照组(P<0.05);两组患者LVEF、SV升高,LVESD降低(P<0.05),均以观察组更明显(P<0.05);两组患者NT-proBNP、GAL-3、GDF-15和sST2水平下降(P<0.05),且观察组低于对照组(P<0.05);两组患者主要症状评分及阳气亏虚血瘀证总积分降低(P<0.05),且观察组低于对照组(P<0.05);两组患者QTc、TP-Tec减少,SDNN、SDANN和Pnn50%增加(P<0.05),且观察组改善明显(P<0.05)。观察组近期不良心血管事件累积发生率低于对照组(P<0.05)。结论破格救心汤加减方联合西医常规疗法治疗心力衰竭合并室性心律失常,能够抑制心室重构,提高心功能,减少不良心血管事件发生,临床疗效优于单纯的西医治疗。

雷火灸治疗阳虚水泛型慢性心力衰竭临床研究

目的:观察雷火灸治疗阳虚水泛型慢性心力衰竭的临床疗效。方法:选取102例阳虚水泛型慢性心力衰竭患者,按随机数字表法分为常规治疗组和雷火灸治疗组各51例,2组各剔除1例,最终各纳入50例。常规治疗组给予西药治疗,雷火灸治疗组在常规治疗组基础上给予雷火灸治疗。比较2组临床疗效、中医证候评分、6 min步行试验(6MWT)距离、明尼苏达心衰生活质量量表(MLHFQ)评分及心、肾功能指标水平,记录不良反应。结果:治疗后,雷火灸治疗组临床疗效优于常规治疗组(P<0.05)。2组中医证候、MLHFQ评分均较治疗前降低(P<0.05),雷火灸治疗组中医证候、MLHFQ评分均低于常规治疗组(P<0.05)。2组6MWT距离均较治疗前增大(P<0.05),雷火灸治疗组6MWT距离大于常规治疗组(P<0.05)。2组可溶性基质裂解素2 (sST2)、磷脂酰肌醇3激酶(PI3K)、嗜铬粒蛋白A (CgA)、游离脂肪酸(FFA)、血肌酐(SCr)水平及心肌能量消耗(MEE)、左室收缩末圆周室壁应力(cESS)值均较治疗前降低(P<0.05),雷火灸治疗组sST2、PI3K、CgA、FFA、SCr水平及MEE、左室cESS值均低于常规治疗组(P<0.05)。2组左室射血分数(LVEF),右室收缩期峰值应变率(SRs)、舒张早期峰值应变率(SRc)、舒张晚期峰值应变率(SRa),以及肾小球滤过率(GFR)均较治疗前升高(P<0.05),雷火灸治疗组LVEF,右室SRs、SRc、SRa,以及GFR均高于常规治疗组(P<0.05)。2组左室心肌质量指数(LVMI)、左室收缩末期内径(LVESd)均较治疗前缩小(P<0.05),雷火灸治疗组LVMI、LVESd均小于常规治疗组(P<0.05)。治疗期间2组均无不良反应发生。结论:雷火灸治疗阳虚水泛型慢性心力衰竭,可调节sST2、PI3K、CgA、FFA等指标水平,改善临床症状及心肾结局,减缓心室重构,提升活动耐力及生活质量。

Impact of potentially lethal ventricular arrhythmias on long-term outcome in patients with chronic heart failure

Background Potentially lethal ventricular arrhythmias （PLVAs） occur frequently in survivors after acute myocardial infarction and are increasingly recognized in other forms of structural heart diseases.This study investigated the prevalence and prognostic significance of PLVAs in patients with chronic heart failure （CHF）.Methods Data concerning demographics,etiology of heart failure,NYHA functional class,biochemical variables,electrocardiographic and echocardiographic findings,and medical treatments were collected by reviewing hospital medical records from 1080 patients with NYHA Ⅱ-Ⅳ and a left ventricular （LV） ejection fraction ≤45%.PLVAs were defined as multi-focal ventricular ectopy （〉30 beats/h on Holter monitoring）,bursts of ventricular premature beats,and nonsustained ventricular tachycardia.All-cause mortality,sudden death,and rehospitalization due to worsening heart failure,or cardiac transplantation during 5-year follow-up after discharge were recorded.Results The occurrence rate of PLVAs in CHF was 30.2%,and increased with age; 23.4% in patients 〈45 years old,27.8% in those between 45-65 years old,and 33.5% in patients 〉65 years old （P=0.033）.Patients with PLVAs had larger LV size and lower ejection fraction （both P 〈0.01） and higher all-cause mortality （P=0.014） during 5-year follow-up than those without PLVAs.Age （OR 1.041,95% Cl 1.004-1.079,P=0.03） and LV end-diastolic dimension （OR 1.068,95% Cl 1.013-1.126,P=0.015） independently predicted the occurrence of PLVAs.And PLVA was an independent factor for all-cause mortality （RR 1.702,95% Cl 1.017-2.848,P=0.031） and sudden death （RR 1.937,95% CI 1.068-3.516,P=0.030） in patients with CHF.Conclusion PLVAs are common and exert a negative impact on Iona-term clinical outcome in patients with CHF.

左西孟旦治疗慢性心力衰竭的临床疗效及对神经激素、左室重构、微小RNA的影响

目的:探讨左西孟旦治疗慢性心力衰竭(CHF)的临床疗效及对患者神经激素、左室重构、微小RNA的影响。方法:选取2022年1~12月期间于某院治疗的120例CHF患者作为研究对象,采用随机数字表法分为对照组和观察组,每组60例。对照组患者给予常规治疗,观察组患者在对照组治疗基础上加用左西孟旦注射液,共治疗2周。比较两组患者神经激素[醛固酮(ALD)、去甲肾上腺素(NE)及血管紧张素Ⅱ(AngⅡ)]、左室重构指标[平均室壁应力(MWS)、左室舒张末期内径(LVEDD)、左室质量指数(LVMI)、左房容积指数(LAVI)]、微小RNA[微小RNA-19b-3p(miR-19b-3p)、微小RNA-497(miR-497)和微小RNA-30a(miR-30a)]、临床疗效及不良反应发生情况。结果:治疗后,两组患者血清ALD、NE、AngⅡ水平均降低(P<0.05),且观察组低于对照组(P<0.05);MWS、LVEDD、LVMI、LAVI均降低(P<0.05),且观察组低于对照组(P<0.05);血清miR-19b-3p、miR-497均升高(P<0.05),且观察组高于对照组(P<0.05);血清miR-30a均降低(P<0.05),且观察组低于对照组(P<0.05)。观察组患者临床治疗总有效率(90.00%)高于对照组(68.33%,P<0.05)。两组患者不良反应发生率比较无统计学差异(P>0.05)。结论:在常规治疗基础上联合左西孟旦治疗CHF临床疗效较好,可有效改善患者血清神经激素、微小RNA水平,抑制左室重构,且不会增加不良反应的发生风险。

离心抗阻训练在治疗慢性心力衰竭中的临床研究

目的探讨离心抗阻训练在慢性心力衰竭中的疗效。方法将120例慢性心力衰竭患者分为观察组和对照组,观察组接受离心抗阻训练,对照组接受传统的康复训练。比较分析2组患者治疗后在运动耐受性、左心室收缩功能、生活质量等方面的差异。结果治疗后观察组的运动耐受性、左心室收缩功能、生活质量等指标均优于对照组,差异均具有统计学意义(P<0.05)。结论离心抗阻训练可以有效治疗慢性心力衰竭,可显著提高患者的运动耐力、左心室收缩功能和生活质量。

扩心方治疗慢性心力衰竭临床观察

目的观察扩心方对慢性心力衰竭(chronic heart failure,CHF)患者心衰症状、心脏功能、心室重构及炎症因子的影响。方法纳入120例CHF患者,随机分为规范化西药治疗组(对照组)和扩心方联合规范化西药组(观察组),两组各60例,治疗12周,观察两组患者治疗前后心衰症状及心功能改善情况、明尼苏达心力衰竭生活质量量表(MLHFQ)评分、六分钟步行试验(6MWT)、心超、血清脑钠肽(BNP)、白细胞介素-2(IL-2)、白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)、转化生长因子-β(TGF-β)、血管内皮生长因子(VEGF)水平变化。结果①治疗后,对照组、观察组临床总有效率分别为56.7%、83.3%,观察组改善优于对照组(P<0.05)。②治疗后,观察组在MLHFQ评分、6MWT、BNP变化上改善均优于对照组(P<0.05)。③治疗后,观察组在左室舒张末期内径(LVEDD)、左室射血分数(LVEF)改善优于对照组(P<0.05),两组在左室收缩末期内径(LVESD),室间隔厚度(IVS)、左室后壁厚度(LVPWT)差异无统计学意义(P>0.05)。④治疗后,观察组在血清IL-6、TNF-α、TGF-β、VEGF水平低于对照组(P<0.05),血清IL-2水平两组差异无统计学意义(P>0.05)。结论扩心方可改善CHF患者临床症状,提高心功能,其机制可能与改善心室重构、抑制炎性细胞因子相关。

达格列净联合左西孟旦治疗慢性心力衰竭患者伴心律失常的疗效及安全性分析

目的探讨达格列净联合左西孟旦治疗慢性心力衰竭(CHF)伴心律失常的疗效及安全性。方法选取2021年3月—2023年3月滕州市中心人民医院收治的192例CHF伴心律失常患者,采用随机数字表法分为对照组和研究组,每组96例(研究组最终脱落3例,对照组脱落2例)。对照组给予左西孟旦注射液,研究组在对照组的基础上给予达格列净片。两组持续治疗1个月后观察疗效。比较两组临床疗效、室性心律失常、心功能、心肌损伤指标及药物不良反应发生情况,对比两组治疗后30 d内因心力衰竭再住院情况。结果研究组总有效率高于对照组(P<0.05)。研究组治疗前后室性早搏、成对室性早搏、短阵室速发作次数的差值高于对照组(P<0.05)。研究组治疗前后左心室射血分数、左室舒张末期内径、左心室收缩末期内径的差值高于对照组(P<0.05)。研究组治疗前后N末端脑钠肽前体、心肌肌钙蛋白Ⅰ的差值高于对照组(P<0.05)。两组总药物不良反应发生率、治疗后30 d内因心力衰竭再住院率比较,差异均无统计学意义(P>0.05)。结论达格列净联合左西孟旦治疗CHF伴心律失常患者可增强临床疗效,减少室性心律失常发作次数,改善心功能,减轻心肌细胞损伤,且安全性良好。