Cardioprotective effects of sinomenine in myocardial ischemia/reperfusion injury in a rat model

BackgroundIschemia reperfusion (I/R) play an imperative role in the expansion of cardiovascular disease. Sinomenine (SM) has been exhibited to possess antioxidant, anticancer, anti-inflammatory, antiviral and anticarcinogenic properties. The aim of the study was scrutinized the cardioprotective effect of SM against I/R injury in rat.MethodsRat were randomly divided into normal control (NC), I/R control and I/R + SM (5, 10 and 20 mg/kg), respectively. Ventricular arrhythmias, body weight and heart weight were estimated. Antioxidant, inflammatory cytokines, inflammatory mediators and plasmin system indicator were accessed.ResultsPre-treated SM group rats exhibited the reduction in the duration and incidence of ventricular fibrillation, ventricular ectopic beat (VEB) and ventricular tachycardia along with suppression of arrhythmia score during the ischemia (30 and 120 min). SM treated rats significantly (P < 0.001) altered the level of antioxidant parameters. SM treatment significantly (P < 0.001) repressed the level of creatine kinase MB (CK-MB), creatine kinase (CK) and troponin I (Tnl). SM treated rats significantly (P < 0.001) repressed the tissue factor (TF), thromboxane B2 (TXB2), plasminogen activator inhibitor 1 (PAI-1) and plasma fibrinogen (Fbg) and inflammatory cytokines and inflammatory mediators.ConclusionOur result clearly indicated that SM plays anti-arrhythmia effect in I/R injury in the rats via alteration of oxidative stress and inflammatory reaction.     

Outcomes of coronary artery bypass grafting in patients with heart failure with a midrange ejection fraction

BackgroundCoronary artery bypass grafting (CABG) improves survival in patients with heart failure and severely reduced left ventricular systolic function (LVEF). Limited data exist regarding adverse cardiovascular event rates after CABG in patients with heart failure with midrange ejection fraction (HFmrEF; LVEF > 40% and < 55%).MethodsWe analyzed data on isolated CABG patients from the Veterans Affairs national database (2010-2019). We stratified patients into control (normal LVEF and no heart failure), HFmrEF, and heart failure with reduced LVEF (HFrEF) groups. We compared all-cause mortality and heart failure hospitalization rates between groups with a Cox model and recurrent events analysis, respectively.ResultsIn 6533 veterans, HFmrEF and HFrEF was present in 1715 (26.3%) and 566 (8.6%) respectively; the control group had 4252 (65.1%) patients. HFrEF patients were more likely to have diabetes mellitus (59%), insulin therapy (36%), and previous myocardial infarction (31%). Anemia was more prevalent in patients with HFrEF (49%) as was a lower serum albumin (mean, 3.6 mg/dL). Compared with the control group, a higher risk of death was observed in the HFmrEF (hazard ratio [HR], 1.3 [1.2-1.5)] and HFrEF (HR, 1.5 [1.2-1.7]) groups. HFmrEF patients had the higher risk of myocardial infarction (subdistribution HR, 1.2 [1-1.6]; P = .04). Risk of heart failure hospitalization was higher in patients with HFmrEF (HR, 4.1 [3.5-4.7]) and patients with HFrEF (HR, 7.2 [6.2-8.5]).ConclusionsHeart failure with midrange ejection fraction negatively affects survival after CABG. These patients also experience higher rates myocardial infarction and heart failure hospitalization.     

电针傍刺经筋结点治疗缺血性脑卒中急性期上肢偏瘫的临床研究

目的通过观察电针傍次上肢经筋结点治疗缺血性脑卒中急性期上肢偏瘫的临床疗效,探讨电针傍次经筋结点治疗缺血性卒中急性期肢体瘫痪的作用机制。方法60例缺血性卒中急性期偏瘫的患者采用SPSS软件随机数字生成器分为治疗组与对照组各30例。治疗组采用电针傍刺上肢经筋结点治疗,对照组采用电针上肢常规经穴治疗。分别于治疗前后观察评价两组上肢的肌力(MMT徒手肌力评定法)、关节活动度(ROM关节活动度评定法)、运动功能(Fugl-Meyer运动功能评分量表、ARAT上肢动作研究量表)、临床神经功能缺损程度(NIHSS量表)确定疗效。结果两组患者治疗后ROM评分下降,Barthel指数、Fugl-Meyer评分、ARAT评分均上升。治疗组较对照组ROM评分、Barthel指数、Fugl-Meyer评分、ARAT评分改善更优(P<0.05);疗程结束后治疗组肌力经MMT评定后有效率为90%,高于对照组的76.67%(P<0.05);治疗组疗效经神经功能缺损程度评价有效率为93.33%,高于对照组76.67%(P<0.05)。结论电针傍刺经筋结点与常规针刺治疗都可以改善缺血性卒中急性期上肢瘫痪,但电针傍刺经筋结点治疗效果更佳。     

化瘀汤治疗脑卒中疗效观察及对神经功能缺损康复的影响

目的:观察化瘀汤治疗脑卒中临床疗效及其对患者神经能缺损康复的影响。方法:将风痰瘀阻型缺血性脑卒中80例随机分为2组,每组40例;对照组采用西医常规治疗,观察组在对照组的基础上加用化瘀汤治疗,2组疗程均为21天;观察比较2组临床疗效、美国国立卫生研究院卒中量表(NIHSS)评分、Fugl-Meyer评分、中医证候积分。结果:总有效率观察组为95.0%,对照组为80.0%,2组比较,差异有统计学意义(P<0.05)。治疗后,2组患者NIHSS评分较治疗前明显下降(P<0.05),Fugl-Meyer评分明显升高(P<0.05);且观察组两项评分改善较对照组更显著(P<0.05)。治疗后,2组中医主症、次症积分均较治疗前明显降低(P<0.05),且观察组两项积分均明显低于对照组(P<0.05)。治疗后,2组患者SS-QOL评分均较治疗前明显升高(P<0.05),且观察组SS-QOL评分明显高于对照组(P<0.05)。结论:在西医常规治疗的基础上,加用化瘀汤治疗风痰瘀阻型缺血型脑卒中患者,能显著改善患者神经功能、肢体运动功能及生活质量,缓解临床症状,疗效优于单纯西医治疗。     

血小板减少合并缺血性卒中的诊治进展

在临床中，如果免疫性血小板减少（immune thrombocytopenia，ITP）、肝素诱发的血小板减少 （heparin-induced thrombocytopenia，HIT）、血栓性血小板减少性紫癜（thrombotic thrombocytopenic purpura， TTP）等血小板减少疾病患者合并缺血性卒中，其治疗存在矛盾。本文对血小板减少的病因机制及血小 板减少合并急性缺血性卒中时静脉溶栓、机械取栓及抗血小板治疗等方面的研究进展进行了综述。     

Impact of Treatment Time on the Long-Term Outcome of Stroke Patients Treated With Mechanical Thrombectomy

Objective

To assess the long-term functional outcome of stroke in patients treated with mechanical thrombectomy (MT) performed during work hours (on-hours) versus after-hours, weekends, and official holidays (off-hours).

Risk prediction of cerebrovascular events with carotid plaque magnetic resonance analysis: A meta-analysis

Background and purpose

It is not conclusive that magnetic resonance (MR)-based carotid atherosclerotic plaque assessment identifies high-risk features associated with cerebrovascular events. We aimed to systematically summarize the association of MR imaging (MRI)-determined intraplaque hemorrhage (IPH), lipid-rich necrotic core (LRNC), and thinning/rupture of the fibrous cap (TRFC) with subsequent ischemic events.