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1.
Congestive heart failure (CHF) has emerged as a major worldwide epidemic and its main causes seem to be the aging of the population and the survival of patients with post-myocardial infarction. Cardiomyocyte dropout (necrosis and apoptosis) plays a critical role in the progress of CHF; thus treatment of CHF by exogenous cell implantation will be a promising medical approach. In the acute phase of cardiac damage cardiac stem cells (CSCs) within the heart divide symmetrically and/or asym-metrically in response to the change of heart homeostasis, and at the same time homing of bone marrow stem cells (BMCs) to injured area is thought to occur, which not only reconstitutes CSC population to normal levels but also repairs the heart by dif-ferentiation into cardiac tissue. So far, basic studies by using potential sources such as BMCs and CSCs to treat animal CHF have shown improved ventricular remodelling and heart function. Recently, however, a few of randomized, double-blind, pla-cebo-controlled clinical trials demonstrated mixed results in heart failure with BMC therapy during acute myocardial infarction. 相似文献
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Ze-wei Tao Long-gui Li Zhao-hua Geng Tao Dang Shan-jun Zhu 《Journal of Zhejiang University. Science. B》2010,11(4):238-248
Therapeutically delivered mesenchymal stem cells (MSCs) improve ventricular remodeling. However,the mechanism underlying MSC cardiac remodeling has not been clearly determined. Congestive heart failure (CHF) was induced in rats by cauterization of the left ventricular free wall. MSCs were cultured from autologous bone marrow and injected into the border zone and the remote myocardium 5 d after injury. Ten weeks later,when compared with sham operation,CHF significantly increased nucleus mitotic index,capilla... 相似文献
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Human bone marrow-derived mesenchymal stem cells transplanted into damaged rabbit heart to improve heart function 总被引：18，自引：0，他引：18
INTRODUCTION Congestive heart failure is the end stage of manycardiovascular diseases. Myocardial infarction (MI)is a life-threatening event that may cause suddencardiac death and heart failure. Despite considerableadvances in diagnosis and treatment of heart disease,cardiac dysfunction after MI is still the majorworldwide cardiovascular disorder. Damaged myo-cardium after acute MI is gradually replaced by fi-brotic noncontractile cells to form scar tissue. Thedeveloping ventricul… 相似文献
4.
苦参碱对急性心衰猫心功能和血流动力学的影响 总被引：3，自引：0，他引：3
目的：研究苦参碱对急性心衰猫心功能和血流动力学的影响方法：以成巴比妥钠造成猫急性心衰模型,iv甘参碱20、40mg/kg,用多道生理记录仪和电磁流量计测定猫的心脏血流动力学参数．结果：苦参碱低、高剂量组均可使LVSP、±dp／dtmax、CO、CI、SI、LVWI显著增加,LVEDP、MAP、TPVR、HR显著下降;高剂量组作用强于低剂量组,给药后15min作用达峰值．结论：苦参碱对戊巴比妥钠诱发的心衰猫具有明显的正性肌力作用,负性频率作用,且能增强心脏舒缩功能,降低外周血管阻力,减轻心脏负荷．说明苦参碱有抗心衰作用． 相似文献
5.
顾彬 《泰州职业技术学院学报》2005,5(6):45-46
目的探讨老年慢性肺心病伴发急性心肌梗死(AMI)的临床特点.方法对66例老年慢性肺心病伴发AMI的病人(A组)进行分析,并与老年单纯冠心病AMI152例(B组)作比较.结果A组疼痛发生率(45.4%)显著低于B组(83.9%)(p＜0.01),A组急性左心衰、心源性休克发生率显著高于B组,分别为53.1%与25.0%,48.4%与21.7%(p＜0.05),A组病死率(42.4%)显著高于B组(15.7%),肺心病对其伴发AMI的发生部位无影响.结论对老年肺心病患者突然发生的急性左心衰和/或心源性休克应高度警惕伴发AMI的可能. 相似文献
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目的 探讨血清IL-6和NT-proBNP在慢性心力衰竭患者中的临床诊断价值.方法 选择80例慢性心力衰竭患者为CHF组,60例健康人群作为对照组.采用双抗体夹心免疫法检测两组人群的血清IL-6和NT-proBNP浓度,并对检测结果进行统计学分析.结果 CHF组患者的血清IL-6和NT-proBNP浓度均明显高于对照组,且随心衰严重程度的加重而增高,两组间差异有统计学意义（P＜0.01）.冠心病组IL-6浓度明显高于其他原发病因组,组间差异有统计学意义（P＜0.01）,CHF患者不同原发病因组NT-proBNP浓度差异无统计学意义（P＞0.05）.结论 IL-6和NT-proBNP参数均与CHF的发生及严重程度密切相关,联合检测可用于对CHF的早期诊断. 相似文献
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目的 :研究充血性心力衰竭与甲状腺激素的关系。方法 :对 4 0例充血性心力衰竭患者及 16例正常患者分别测定三碘甲状腺原氨酸 ,四碘甲状腺原氨酸 ,反三碘甲状腺原氨酸以及促甲状腺激素水平。结果 :充血性心力衰竭程度越重 ,三碘甲状腺原氨酸水平下降越明显 ,反三碘甲状腺原氨酸水平升高越明显 ,促甲状腺激素水平正常 ,四碘甲状腺原氨酸变化不明显。结论 :三碘甲状腺原氨酸 ,反三碘甲状腺原氨酸对充血性心力衰竭的早期诊断有重要意义。 相似文献
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Xian-qing HU Jian CHENG Biao TANG Zhong-heng ZHANG Ke HUANG Yi-ping YANG Yan-yan MAO Ming ZHONG Shen-wen FU 《Journal of Zhejiang University. Science. B》2015,16(3):198-207
目的:探讨后适应对接受直接经皮冠状动脉介入(PCI)治疗的急性ST段抬高性心肌梗死(STEMI)患者心血管不良事件的影响。创新点:进一步明确后适应处理对STEMI患者临床预后的影响。方法:对符合入选标准的随机对照临床试验进行meta分析。结论:缺血后适应显著降低ST段抬高性心肌梗死患者心衰风险。 相似文献
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Hai-ying Xu Yi-zhou Xu Feng Ling Zhong Yu Jun Yang Xu Duan Bei Wang Jin-yu Huang 《Journal of Zhejiang University. Science. B》2013,14(8):759-762
Marfan syndrome is a systemic connective tissue disease that could affect the cardiovascular system and eventually lead to heart enlargement and heart failure with high mortality, mainly due to progressive heart failure and/or sudden cardiac death caused by malignant arrhythmia. Here we report that a patient received a cardiac resynchronization therapy-defibrillator (CRT-D) with a pre-monitor function for heart failure and experienced obvious improvements in his cardiac function. Postoperative follow-up showed that the patient had reduced morbidity and hospitalization for heart failure, and also experienced improved quality of life. 相似文献
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Objective: Myocardial infarction (MI) is the main cause of heart failure, but the relationship between the extent of MI and cardiac function has not been clearly determined. The present study was undertaken to investigate early changes in the electrocardiogram associated with infarct size and cardiac function after MI. Methods: MI was induced by ligating the left anterior descending coronary artery in rats. Electrocardiograms, echocardiographs and hemodynamic parameters were assessed and myocardial infarct size was measured from mid-transverse sections stained with Masson's trichrome. Results: The sum of pathological Q wave amplitudes was strongly correlated with myocardial infarct size (r = 0.920, P < 0.0001), left ventricular ejection fraction (r = (0.868, P < 0.0001) and left ventricular end diastolic pressure (r = 0.835, P < 0.0004). Furthermore, there was close relationship between MI size and cardiac function as assessed by left ventricular ejection fraction (r = (0.913, P < 0.0001) and left ventricular end diastolic pressure (r = 0.893, P < 0.0001). Conclusion: The sum of pathological Q wave amplitudes after MI can be used to estimate the extent of MI as well as cardiac function. 相似文献
11.
We observed in a pilot study that there was a transient elevation of brain natriuretic peptide （BNP） level shortly after the transplantation in the patient with ischemic heart failure, which is unexplainable by the simultaneous increase of the cardiac output and six-minute walk distance. Similar findings were observed in the phase I trial. We postulated on the basis of the finding of Fukuda in vitro that this transient elevation of BNP level against the improvement of cardiac function and exercise capacity might indicate cardiomyogenesis in patients after mesenchymal stem cell transplantation. Further study is warranted to verify the hypothesis. 相似文献
12.
Although the management of chronic heart failure (CHF) has made enormous progress over the past decades, CHF is still a tremendous medical and societal burden. Metabolic remodeling might play a crucial role in the pathophysiology of CHF. The characteristics and mechanisms of metabolic remodeling remained unclear, and the main hypothesis might include the changes in the availability of metabolic substrate and the decline of metabolic capability. In the early phases of the disease, metabolism shifts toward carbohydrate utilization from fatty acids (FAs) oxidation. Along with the progress of the disease, the increasing level of the hyperadrenergic state and insulin resistance cause the changes that shift back to a greater FA uptake and oxidation. In addition, a growing body of experimental and clinical evidence suggests that the improvement in the metabolic capability is likely to be more significant than the selection of the substrate. 相似文献
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Assessing the dynamics of heart rate fluctuations can provide valuable information about heart status. In this study, regularity of heart rate variability （HRV） of heart failure patients and healthy persons using the concept of singular value decomposition entropy （SvdEn） is analyzed. SvdEn is calculated from the time series using normalized singular values. The advantage of this method is its simplicity and fast computation. It enables analysis of very short and non-stationary data sets. The results show that SvdEn of patients with congestive heart failure （CHF） shows a low value （SvdEn： 0.056±0.006, p 〈 0.01） which can be completely separated from healthy subjects. In addition, differences of SvdEn values between day and night are found for the healthy groups. SvdEn decreases with age. The lower the SvdEn values, the higher the risk of heart disease. Moreover, SvdEn is associated with the energy of heart rhythm. The results show that using SvdEn for discriminating HRV in different physiological states for clinical applications is feasible and simple. 相似文献
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目的观察潘南金(门冬氨酸钾镁)对急性心肌梗塞后心律失常、泵功能及死亡率的影响.方法本文对我院1998.3～1999.10月收入CCU病房的40例患者进行单盲、随机分为治疗组和对照组,治疗组第1～5天给予潘南金静脉输注,第6～15天改为口服,检测两组治疗前、第5、10天的血清钾、镁离子浓度,记录治疗前后血压及第一天24hHolter,统计两组并发症及死亡率,所得数据进行统计学处理.结果两组间在年龄、性别、发病时间及合并用药等方面无差异,所有资料具有可比性.治疗组第5、10天的血镁较治疗前及对照组显著增高(P＜0.01),治疗组的心衰、室早、室速较对照组明显减少(P值分别为＜0.05、＜0.01及＜0.05),治疗组再灌注心律失常发生率较对照组减少(P＜0.05),死亡率两组间无显著差异(P＜0.05).治疗组治疗前后血压变化较对照组明显(P＜0.05).结论潘南金可以减少AMI后心衰的发生,改善心功能,减少AMI后室性心律失常的发生.在溶栓的患者,潘南金能减少再灌注心律失常的发生,减小再灌注损伤.但潘南金对血压有较大的影响,尤其血压在正常低限时,静脉输注潘南金可使低血压发生率增加,因此临床应用时需注意. 相似文献
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１ Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｉｔｉｓａｎｅａｓｙｔａｓｋｆｏｒｅｘｐｅｒｉｅｎｃｅｄｃｙｔｏｐａｔｈｏｌｏｇｉｓｔｓｔｏｉｄｅｎｔｉｆｙｃｅｌｌｓｕｎｄｅｒｏｐｔｉｃａｌｍｉｃｒｏｓｃｏｐｅｓ,ｂｕｔｉｔｉｓｖｅｒｙｃｏｍｐｌｉｃａｔｅｄｆｏｒｃｏｍｐｕｔｅｒｔｏｃａｒｒｙｏｎｔｈｅｓａｍｅｍｉｓｓｉｏｎａｕｔｏｍａｔｉｃａｌｌｙ．Ｏｎｅｏｆｔｈｅｍａｊｏｒｒｅａｓｏｎｓｉｓｔｈｅｖａｒｉｏｕｓｐａｒａｍｅｔｅｒｓａｎｄｆｅａｔｕｒｅｓｏｆｃｅｌｌｓｔｈａｔｏｆｔｅｎｏｖｅｒｌａｐｗｉｔｈｅ… 相似文献
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介绍了临床应用β-阻滞剂治疗慢性充血性心力衰竭(CHF)的发展.应用β-阻滞剂治疗CHF可显著改善临床症状,降低死亡率,特别是对特发性DCM的疗效最为显著.β-阻滞剂治疗CHF应当在病情稳定后开始使用.介绍了不同β-阻滞剂的作用特点以及具体应用方法,并针对可能发生的药物不良反应提出了防治方法. 相似文献
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目的 :探讨小剂量醛固酮拮抗剂螺内酯治疗老年人重度慢性充血性心力衰竭 (CHF)疗效和安全性。方法 :采用多中心、随机、单盲、安慰剂对照、平行组试验。入选老年重度CHF患者 15 2例 ,随机分为螺内酯组 (A组 )和对照组 (B组 ) ,均予标准三联抗心衰治疗 ,A组联用螺内酯 (2 0～ 4 0mg/d) ,B组联用与螺内酯外观相同的淀粉安慰剂。治疗前和治疗后 2周、4周、8周分别进行心功能 (NYHA)分级评估 ,心电图、超声心动图、血常规、生化等检查 ,并进行对照。结果 :治疗 8周后A、B两组心功能分级、无创心排量指标均显著改善 (P <0 .0 5 ) ;与B组比较 ,A组改善更显著 (P <0 .0 5 )。无肝、肾功能损害及血脂、血糖升高 ,未见高血钾症 ,毒副作用少。结论 :应用螺内酯治疗老年人重度CHF疗效肯定、可靠、安全性好、值得推广。 相似文献
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XIA Qin-gui *L Oliver Chung Heidi Spitznagel Thomas Unger 《Journal of Zhejiang University. Science. B》2001,(4)
ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅＮａ /Ｈ ｅｘｃｈａｎｇｅｒ (ＮＨＥ)ｉｓａｐＨ ｒｅｇｕｌａｔｏｒｙｐｒｏｔｅｉｎｐｒｅｓｅｎｔｉｎｔｈｅｐｌａｓｍａｍｅｍ ｂｒａｎｃｅｏｆｃａｒｄｉｏｍｙｏｃｙｔｅｓａｎｄｏｔｈｅｒｃｅｌｌｔｙｐｅｓ.ＡｌｔｈｏｕｇｈｓｅｖｅｒａｌｉｓｏｆｏｒｍｓｏｆＮＨＥｈａｖｅｂｅｅｎｄｅ ｃｒｉｂｅｄ,ｔｈｅｐｒｅｄｏｍｉｎａｎｔｉｓｏｆｏｒｍｉｎｔｈｅｈｅａｒｔｉｓｔｈｅｕｂｉｑｕｉｔｏｕｓＮＨＥ 1 ,ｗｈｉｃｈｕｎｄｅｒｃｅｎｔａｉｎｐｈｙｓｉｏｌｏｇｉｃａｌｃｏｎｄｉｔｉ… 相似文献
20.
目的：探讨肺炎衣原体（TWAR）与急性心梗（AMI）、心绞痛（Angina）型冠心病之间的关系。方法：采用多聚合酶链反应（PCR）技术对200例冠心病（急性心梗56例,不稳定心绞痛124例,稳定心绞痛20例）和180例非冠心病患者进行全血标本肺炎衣原体DNA检测。结果：急性心梗组肺炎衣原体DNA阳性率为73.2%,不稳定心绞痛组为52.4%,稳定心绞痛组为45.0%;对照组为21.1%,三组与对照组相比,差异均有显著性（P〈0.01,P〈0.01,P〈0.05）。结论：肺炎衣原体感染与急性心梗、心绞痛型冠心病存在密切关系。 相似文献